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Message-Id: <1cb69445cfff01ccc805487692bf63d98fd045fa.1242855716.git.wuzhangjin@gmail.com>
Date: Thu, 21 May 2009 06:06:20 +0800
From: wuzhangjin@...il.com
To: linux-mips@...ux-mips.org, Ralf Baechle <ralf@...ux-mips.org>,
Andrew Morton <akpm@...ux-foundation.org>
Cc: linux-kernel@...r.kernel.org, Wu Zhangjin <wuzhangjin@...il.com>,
Yan hua <yanh@...ote.com>,
Philippe Vachon <philippe@...pig.ca>,
Zhang Le <r0bertz@...too.org>,
Zhang Fuxin <zhangfx@...ote.com>,
Arnaud Patard <apatard@...driva.com>,
loongson-dev@...glegroups.com, gnewsense-dev@...gnu.org,
Nicholas Mc Guire <hofrat@...r.at>,
Liu Junliang <liujl@...ote.com>,
Erwan Lerale <erwan@...scow.com>
Subject: [loongson-PATCH-v1 13/27] add basic fuloong(2f) support
From: Wu Zhangjin <wuzhangjin@...il.com>
fuloong(2e) has an VIA686B south bridge, but fuloong(2f) has an AMD
CS5536 south bridge. so, we need to add basic cs5536 south bridge
support here.
there are several modules provided by cs5536, currently, only these
modules are used in fuloong(2f) mini PC: ide, acc(audio), ohci, isa, and
ehci. and these modules are general modules, which means should be
compiled in kernel by default, besides, there are several selective
modules: flash(nor and nand), otg, udc. the otg and udc modules are used
in the NAS machine made by Lemote(the source code support will be added
later, only a few differ from fuloong2f mini PC).
since the PCI operations are similiar between fuloong(2e) and
fuloong(2f),yeeloong(2f) and even similiar to gdium, herein, I just
rename ops-fuloong2e.c to ops-loongsgon2.c to share most of the source
code.
PS: the originl cs5536 support for fuloong2f is from the to-mips branch
of git://dev.lemote.com/linux_loongson.git, tons of source code have
been cleaned up. the most important change is using the linux-internal
pci_regs.h(include/linux/pci_regs.h) instead of the original pcireg.h
and dividing the huge cs5536_vsm.c to several small files, one file one
cs5536 module. at the same time, tons of souce code are tuned to be
understandable and some trashy souce code are removed away which will
archieve a higher performance. and also, the header files, cs5536.h and
cs5536_pci.h are cleaned up a lot.
Signed-off-by: Wu Zhangjin <wuzhangjin@...il.com>
---
arch/mips/Makefile | 1 +
.../mips/include/asm/mach-loongson/cs5536/cs5536.h | 382 +++++++++++++++++
.../include/asm/mach-loongson/cs5536/cs5536_pci.h | 174 ++++++++
.../include/asm/mach-loongson/cs5536/cs5536_vsm.h | 59 +++
arch/mips/include/asm/mach-loongson/loongson.h | 2 +-
arch/mips/include/asm/mach-loongson/machine.h | 30 ++
arch/mips/loongson/Kconfig | 44 ++
arch/mips/loongson/Makefile | 6 +
arch/mips/loongson/common/Makefile | 6 +
arch/mips/loongson/common/bonito-irq.c | 5 +
arch/mips/loongson/common/cs5536/Makefile | 20 +
arch/mips/loongson/common/cs5536/cs5536_acc.c | 155 +++++++
arch/mips/loongson/common/cs5536/cs5536_ehci.c | 165 +++++++
arch/mips/loongson/common/cs5536/cs5536_flash.c | 450 ++++++++++++++++++++
arch/mips/loongson/common/cs5536/cs5536_ide.c | 193 +++++++++
arch/mips/loongson/common/cs5536/cs5536_isa.c | 376 ++++++++++++++++
arch/mips/loongson/common/cs5536/cs5536_ohci.c | 167 ++++++++
arch/mips/loongson/common/cs5536/cs5536_otg.c | 137 ++++++
arch/mips/loongson/common/cs5536/cs5536_pci.c | 126 ++++++
arch/mips/loongson/common/cs5536/cs5536_udc.c | 142 ++++++
arch/mips/loongson/fuloong-2f/Makefile | 5 +
arch/mips/loongson/fuloong-2f/irq.c | 53 +++
arch/mips/loongson/fuloong-2f/reset.c | 65 +++
arch/mips/pci/Makefile | 3 +-
arch/mips/pci/fixup-fuloong2f.c | 171 ++++++++
arch/mips/pci/ops-fuloong2e.c | 160 -------
arch/mips/pci/ops-loongson2.c | 213 +++++++++
27 files changed, 3148 insertions(+), 162 deletions(-)
create mode 100644 arch/mips/include/asm/mach-loongson/cs5536/cs5536.h
create mode 100644 arch/mips/include/asm/mach-loongson/cs5536/cs5536_pci.h
create mode 100644 arch/mips/include/asm/mach-loongson/cs5536/cs5536_vsm.h
create mode 100644 arch/mips/loongson/common/cs5536/Makefile
create mode 100644 arch/mips/loongson/common/cs5536/cs5536_acc.c
create mode 100644 arch/mips/loongson/common/cs5536/cs5536_ehci.c
create mode 100644 arch/mips/loongson/common/cs5536/cs5536_flash.c
create mode 100644 arch/mips/loongson/common/cs5536/cs5536_ide.c
create mode 100644 arch/mips/loongson/common/cs5536/cs5536_isa.c
create mode 100644 arch/mips/loongson/common/cs5536/cs5536_ohci.c
create mode 100644 arch/mips/loongson/common/cs5536/cs5536_otg.c
create mode 100644 arch/mips/loongson/common/cs5536/cs5536_pci.c
create mode 100644 arch/mips/loongson/common/cs5536/cs5536_udc.c
create mode 100644 arch/mips/loongson/fuloong-2f/Makefile
create mode 100644 arch/mips/loongson/fuloong-2f/irq.c
create mode 100644 arch/mips/loongson/fuloong-2f/reset.c
create mode 100644 arch/mips/pci/fixup-fuloong2f.c
delete mode 100644 arch/mips/pci/ops-fuloong2e.c
create mode 100644 arch/mips/pci/ops-loongson2.c
diff --git a/arch/mips/Makefile b/arch/mips/Makefile
index 6cbfc22..abf16c1 100644
--- a/arch/mips/Makefile
+++ b/arch/mips/Makefile
@@ -310,6 +310,7 @@ core-$(CONFIG_LOONGSON_SYSTEMS) +=arch/mips/loongson/
cflags-$(CONFIG_LOONGSON_SYSTEMS) += -I$(srctree)/arch/mips/include/asm/mach-loongson \
-mno-branch-likely
load-$(CONFIG_LEMOTE_FULOONG2E) +=0xffffffff80100000
+load-$(CONFIG_LEMOTE_FULOONG2F) +=0xffffffff80200000
#
# MIPS Malta board
diff --git a/arch/mips/include/asm/mach-loongson/cs5536/cs5536.h b/arch/mips/include/asm/mach-loongson/cs5536/cs5536.h
new file mode 100644
index 0000000..a9bbe1d
--- /dev/null
+++ b/arch/mips/include/asm/mach-loongson/cs5536/cs5536.h
@@ -0,0 +1,382 @@
+/*
+ * The header file of cs5536 sourth bridge.
+ *
+ * Copyright (C) 2007 Lemote, Inc. & Institute of Computing Technology
+ * Author : jlliu <liujl@...ote.com>
+ */
+
+#ifndef _CS5536_H
+#define _CS5536_H
+
+#include <linux/types.h>
+
+extern void _rdmsr(u32 msr, u32 *hi, u32 *lo);
+extern void _wrmsr(u32 msr, u32 hi, u32 lo);
+
+/*
+ * MSR module base
+ */
+#define CS5536_SB_MSR_BASE (0x00000000)
+#define CS5536_GLIU_MSR_BASE (0x10000000)
+#define CS5536_ILLEGAL_MSR_BASE (0x20000000)
+#define CS5536_USB_MSR_BASE (0x40000000)
+#define CS5536_IDE_MSR_BASE (0x60000000)
+#define CS5536_DIVIL_MSR_BASE (0x80000000)
+#define CS5536_ACC_MSR_BASE (0xa0000000)
+#define CS5536_UNUSED_MSR_BASE (0xc0000000)
+#define CS5536_GLCP_MSR_BASE (0xe0000000)
+
+#define SB_MSR_REG(offset) (CS5536_SB_MSR_BASE | (offset))
+#define GLIU_MSR_REG(offset) (CS5536_GLIU_MSR_BASE | (offset))
+#define ILLEGAL_MSR_REG(offset) (CS5536_ILLEGAL_MSR_BASE | (offset))
+#define USB_MSR_REG(offset) (CS5536_USB_MSR_BASE | (offset))
+#define IDE_MSR_REG(offset) (CS5536_IDE_MSR_BASE | (offset))
+#define DIVIL_MSR_REG(offset) (CS5536_DIVIL_MSR_BASE | (offset))
+#define ACC_MSR_REG(offset) (CS5536_ACC_MSR_BASE | (offset))
+#define UNUSED_MSR_REG(offset) (CS5536_UNUSED_MSR_BASE | (offset))
+#define GLCP_MSR_REG(offset) (CS5536_GLCP_MSR_BASE | (offset))
+
+/*
+ * BAR SPACE OF VIRTUAL PCI :
+ * range for pci probe use, length is the actual size.
+ */
+/* IO space for all DIVIL modules */
+#define CS5536_IRQ_RANGE 0xffffffe0 /* USERD FOR PCI PROBE */
+#define CS5536_IRQ_LENGTH 0x20 /* THE REGS ACTUAL LENGTH */
+#define CS5536_SMB_RANGE 0xfffffff8
+#define CS5536_SMB_LENGTH 0x08
+#define CS5536_GPIO_RANGE 0xffffff00
+#define CS5536_GPIO_LENGTH 0x100
+#define CS5536_MFGPT_RANGE 0xffffffc0
+#define CS5536_MFGPT_LENGTH 0x40
+#define CS5536_ACPI_RANGE 0xffffffe0
+#define CS5536_ACPI_LENGTH 0x20
+#define CS5536_PMS_RANGE 0xffffff80
+#define CS5536_PMS_LENGTH 0x80
+/* MEM space for 4KB nand flash; IO space for 16B nor flash. */
+#ifdef CS5536_NOR_FLASH
+#define CS5536_FLSH_LENGTH 0x10
+#define CS5536_FLSH_RANGE 0xfffffff0
+#else
+#define CS5536_FLSH_RANGE 0xfffff000
+#define CS5536_FLSH_LENGTH 0x1000
+#endif
+/* IO space for IDE */
+#define CS5536_IDE_RANGE 0xfffffff0
+#define CS5536_IDE_LENGTH 0x10
+/* IO space for ACC */
+#define CS5536_ACC_RANGE 0xffffff80
+#define CS5536_ACC_LENGTH 0x80
+/* MEM space for ALL USB modules */
+#define CS5536_OHCI_RANGE 0xfffff000
+#define CS5536_OHCI_LENGTH 0x1000
+#define CS5536_EHCI_RANGE 0xfffff000
+#define CS5536_EHCI_LENGTH 0x1000
+#define CS5536_UDC_RANGE 0xffffe000
+#define CS5536_UDC_LENGTH 0x2000
+#define CS5536_OTG_RANGE 0xfffff000
+#define CS5536_OTG_LENGTH 0x1000
+
+/*
+ * PCI MSR ACCESS
+ */
+#define PCI_MSR_CTRL 0xF0
+#define PCI_MSR_ADDR 0xF4
+#define PCI_MSR_DATA_LO 0xF8
+#define PCI_MSR_DATA_HI 0xFC
+
+/**************** MSR *****************************/
+
+/*
+ * GLIU STANDARD MSR
+ */
+#define GLIU_CAP 0x00
+#define GLIU_CONFIG 0x01
+#define GLIU_SMI 0x02
+#define GLIU_ERROR 0x03
+#define GLIU_PM 0x04
+#define GLIU_DIAG 0x05
+
+/*
+ * GLIU SPEC. MSR
+ */
+#define GLIU_P2D_BM0 0x20
+#define GLIU_P2D_BM1 0x21
+#define GLIU_P2D_BM2 0x22
+#define GLIU_P2D_BMK0 0x23
+#define GLIU_P2D_BMK1 0x24
+#define GLIU_P2D_BM3 0x25
+#define GLIU_P2D_BM4 0x26
+#define GLIU_COH 0x80
+#define GLIU_PAE 0x81
+#define GLIU_ARB 0x82
+#define GLIU_ASMI 0x83
+#define GLIU_AERR 0x84
+#define GLIU_DEBUG 0x85
+#define GLIU_PHY_CAP 0x86
+#define GLIU_NOUT_RESP 0x87
+#define GLIU_NOUT_WDATA 0x88
+#define GLIU_WHOAMI 0x8B
+#define GLIU_SLV_DIS 0x8C
+#define GLIU_IOD_BM0 0xE0
+#define GLIU_IOD_BM1 0xE1
+#define GLIU_IOD_BM2 0xE2
+#define GLIU_IOD_BM3 0xE3
+#define GLIU_IOD_BM4 0xE4
+#define GLIU_IOD_BM5 0xE5
+#define GLIU_IOD_BM6 0xE6
+#define GLIU_IOD_BM7 0xE7
+#define GLIU_IOD_BM8 0xE8
+#define GLIU_IOD_BM9 0xE9
+#define GLIU_IOD_SC0 0xEA
+#define GLIU_IOD_SC1 0xEB
+#define GLIU_IOD_SC2 0xEC
+#define GLIU_IOD_SC3 0xED
+#define GLIU_IOD_SC4 0xEE
+#define GLIU_IOD_SC5 0xEF
+#define GLIU_IOD_SC6 0xF0
+#define GLIU_IOD_SC7 0xF1
+
+/*
+ * SB STANDARD
+ */
+#define SB_CAP 0x00
+#define SB_CONFIG 0x01
+#define SB_SMI 0x02
+#define SB_ERROR 0x03
+#define SB_MAR_ERR_EN 0x00000001
+#define SB_TAR_ERR_EN 0x00000002
+#define SB_RSVD_BIT1 0x00000004
+#define SB_EXCEP_ERR_EN 0x00000008
+#define SB_SYSE_ERR_EN 0x00000010
+#define SB_PARE_ERR_EN 0x00000020
+#define SB_TAS_ERR_EN 0x00000040
+#define SB_MAR_ERR_FLAG 0x00010000
+#define SB_TAR_ERR_FLAG 0x00020000
+#define SB_RSVD_BIT2 0x00040000
+#define SB_EXCEP_ERR_FLAG 0x00080000
+#define SB_SYSE_ERR_FLAG 0x00100000
+#define SB_PARE_ERR_FLAG 0x00200000
+#define SB_TAS_ERR_FLAG 0x00400000
+#define SB_PM 0x04
+#define SB_DIAG 0x05
+
+/*
+ * SB SPEC.
+ */
+#define SB_CTRL 0x10
+#define SB_R0 0x20
+#define SB_R1 0x21
+#define SB_R2 0x22
+#define SB_R3 0x23
+#define SB_R4 0x24
+#define SB_R5 0x25
+#define SB_R6 0x26
+#define SB_R7 0x27
+#define SB_R8 0x28
+#define SB_R9 0x29
+#define SB_R10 0x2A
+#define SB_R11 0x2B
+#define SB_R12 0x2C
+#define SB_R13 0x2D
+#define SB_R14 0x2E
+#define SB_R15 0x2F
+
+/*
+ * GLCP STANDARD
+ */
+#define GLCP_CAP 0x00
+#define GLCP_CONFIG 0x01
+#define GLCP_SMI 0x02
+#define GLCP_ERROR 0x03
+#define GLCP_PM 0x04
+#define GLCP_DIAG 0x05
+
+/*
+ * GLCP SPEC.
+ */
+#define GLCP_CLK_DIS_DELAY 0x08
+#define GLCP_PM_CLK_DISABLE 0x09
+#define GLCP_GLB_PM 0x0B
+#define GLCP_DBG_OUT 0x0C
+#define GLCP_RSVD1 0x0D
+#define GLCP_SOFT_COM 0x0E
+#define SOFT_BAR_SMB_FLAG 0x00000001
+#define SOFT_BAR_GPIO_FLAG 0x00000002
+#define SOFT_BAR_MFGPT_FLAG 0x00000004
+#define SOFT_BAR_IRQ_FLAG 0x00000008
+#define SOFT_BAR_PMS_FLAG 0x00000010
+#define SOFT_BAR_ACPI_FLAG 0x00000020
+#define SOFT_BAR_FLSH0_FLAG 0x00000040
+#define SOFT_BAR_FLSH1_FLAG 0x00000080
+#define SOFT_BAR_FLSH2_FLAG 0x00000100
+#define SOFT_BAR_FLSH3_FLAG 0x00000200
+#define SOFT_BAR_IDE_FLAG 0x00000400
+#define SOFT_BAR_ACC_FLAG 0x00000800
+#define SOFT_BAR_OHCI_FLAG 0x00001000
+#define SOFT_BAR_EHCI_FLAG 0x00002000
+#define SOFT_BAR_UDC_FLAG 0x00004000
+#define SOFT_BAR_OTG_FLAG 0x00008000
+#define GLCP_RSVD2 0x0F
+#define GLCP_CLK_OFF 0x10
+#define GLCP_CLK_ACTIVE 0x11
+#define GLCP_CLK_DISABLE 0x12
+#define GLCP_CLK4ACK 0x13
+#define GLCP_SYS_RST 0x14
+#define GLCP_RSVD3 0x15
+#define GLCP_DBG_CLK_CTRL 0x16
+#define GLCP_CHIP_REV_ID 0x17
+
+/*
+ * DIVIL STANDARD
+ */
+#define DIVIL_CAP 0x00
+#define DIVIL_CONFIG 0x01
+#define DIVIL_SMI 0x02
+#define DIVIL_ERROR 0x03
+#define DIVIL_PM 0x04
+#define DIVIL_DIAG 0x05
+
+/*
+ * DIVIL SPEC.
+ */
+#define DIVIL_LBAR_IRQ 0x08
+#define DIVIL_LBAR_KEL 0x09
+#define DIVIL_LBAR_SMB 0x0B
+#define DIVIL_LBAR_GPIO 0x0C
+#define DIVIL_LBAR_MFGPT 0x0D
+#define DIVIL_LBAR_ACPI 0x0E
+#define DIVIL_LBAR_PMS 0x0F
+#define DIVIL_LBAR_FLSH0 0x10
+#define DIVIL_LBAR_FLSH1 0x11
+#define DIVIL_LBAR_FLSH2 0x12
+#define DIVIL_LBAR_FLSH3 0x13
+#define DIVIL_LEG_IO 0x14
+#define DIVIL_BALL_OPTS 0x15
+#define DIVIL_SOFT_IRQ 0x16
+#define DIVIL_SOFT_RESET 0x17
+/* NOR FLASH */
+#define NORF_CTRL 0x18
+#define NORF_T01 0x19
+#define NORF_T23 0x1A
+/* NAND FLASH */
+#define NANDF_DATA 0x1B
+#define NANDF_CTRL 0x1C
+#define NANDF_RSVD 0x1D
+/* KEL Keyboard Emulation Logic */
+#define KEL_CTRL 0x1F
+/* PIC */
+#define PIC_YSEL_LOW 0x20
+#define PIC_YSEL_LOW_USB_SHIFT 8
+#define PIC_YSEL_LOW_ACC_SHIFT 16
+#define PIC_YSEL_LOW_FLASH_SHIFT 24
+#define PIC_YSEL_HIGH 0x21
+#define PIC_ZSEL_LOW 0x22
+#define PIC_ZSEL_HIGH 0x23
+#define PIC_IRQM_PRIM 0x24
+#define PIC_IRQM_LPC 0x25
+#define PIC_XIRR_STS_LOW 0x26
+#define PIC_XIRR_STS_HIGH 0x27
+#define PCI_SHDW 0x34
+/* MFGPT */
+#define MFGPT_IRQ 0x28
+#define MFGPT_NR 0x29
+#define MFGPT_RSVD 0x2A
+#define MFGPT_SETUP 0x2B
+/* FLOPPY */
+#define FLPY_3F2_SHDW 0x30
+#define FLPY_3F7_SHDW 0x31
+#define FLPY_372_SHDW 0x32
+#define FLPY_377_SHDW 0x33
+/* PIT */
+#define PIT_SHDW 0x36
+#define PIT_CNTRL 0x37
+/* UART */
+#define UART1_MOD 0x38
+#define UART1_DONG 0x39
+#define UART1_CONF 0x3A
+#define UART1_RSVD 0x3B
+#define UART2_MOD 0x3C
+#define UART2_DONG 0x3D
+#define UART2_CONF 0x3E
+#define UART2_RSVD 0x3F
+/* DMA */
+#define DIVIL_AC_DMA 0x1E
+#define DMA_MAP 0x40
+#define DMA_SHDW_CH0 0x41
+#define DMA_SHDW_CH1 0x42
+#define DMA_SHDW_CH2 0x43
+#define DMA_SHDW_CH3 0x44
+#define DMA_SHDW_CH4 0x45
+#define DMA_SHDW_CH5 0x46
+#define DMA_SHDW_CH6 0x47
+#define DMA_SHDW_CH7 0x48
+#define DMA_MSK_SHDW 0x49
+/* LPC */
+#define LPC_EADDR 0x4C
+#define LPC_ESTAT 0x4D
+#define LPC_SIRQ 0x4E
+#define LPC_RSVD 0x4F
+/* PMC */
+#define PMC_LTMR 0x50
+#define PMC_RSVD 0x51
+/* RTC */
+#define RTC_RAM_LOCK 0x54
+#define RTC_DOMA_OFFSET 0x55
+#define RTC_MONA_OFFSET 0x56
+#define RTC_CEN_OFFSET 0x57
+
+/*
+ * IDE STANDARD
+ */
+#define IDE_CAP 0x00
+#define IDE_CONFIG 0x01
+#define IDE_SMI 0x02
+#define IDE_ERROR 0x03
+#define IDE_PM 0x04
+#define IDE_DIAG 0x05
+
+/*
+ * IDE SPEC.
+ */
+#define IDE_IO_BAR 0x08
+#define IDE_CFG 0x10
+#define IDE_DTC 0x12
+#define IDE_CAST 0x13
+#define IDE_ETC 0x14
+#define IDE_INTERNAL_PM 0x15
+
+/*
+ * ACC STANDARD
+ */
+#define ACC_CAP 0x00
+#define ACC_CONFIG 0x01
+#define ACC_SMI 0x02
+#define ACC_ERROR 0x03
+#define ACC_PM 0x04
+#define ACC_DIAG 0x05
+
+/*
+ * USB STANDARD
+ */
+#define USB_CAP 0x00
+#define USB_CONFIG 0x01
+#define USB_SMI 0x02
+#define USB_ERROR 0x03
+#define USB_PM 0x04
+#define USB_DIAG 0x05
+
+/*
+ * USB SPEC.
+ */
+#define USB_OHCI 0x08
+#define USB_EHCI 0x09
+#define USB_UDC 0x0A
+#define USB_OTG 0x0B
+
+/****************** NATIVE ***************************/
+/* GPIO : I/O SPACE; REG : 32BITS */
+#define GPIOL_OUT_VAL 0x00
+#define GPIOL_OUT_EN 0x04
+
+#endif /* _CS5536_H */
diff --git a/arch/mips/include/asm/mach-loongson/cs5536/cs5536_pci.h b/arch/mips/include/asm/mach-loongson/cs5536/cs5536_pci.h
new file mode 100644
index 0000000..34d37ed
--- /dev/null
+++ b/arch/mips/include/asm/mach-loongson/cs5536/cs5536_pci.h
@@ -0,0 +1,174 @@
+/*
+ * the definition file of cs5536 Virtual Support Module(VSM).
+ * pci configuration space can be accessed through the VSM, so
+ * there is no need of the MSR read/write now, except the spec.
+ * MSR registers which are not implemented yet.
+ *
+ * Copyright (C) 2007 Lemote Inc. & Insititute of Computing Technology
+ * Author : jlliu, liujl@...ote.com
+ */
+
+#ifndef _CS5536_PCI_H
+#define _CS5536_PCI_H
+
+#include <linux/types.h>
+#include <linux/pci_regs.h>
+
+extern void cs5536_pci_conf_write4(int function, int reg, u32 value);
+extern u32 cs5536_pci_conf_read4(int function, int reg);
+
+#define CS5536_FLASH_INTR 6
+#define CS5536_ACC_INTR 9
+#define CS5536_IDE_INTR 14
+#define CS5536_USB_INTR 11
+#define CS5536_UART1_INTR 4
+#define CS5536_UART2_INTR 3
+
+/************** PCI BUS DEVICE FUNCTION ***************/
+
+/*
+ * PCI bus device function
+ */
+#define PCI_BUS_CS5536 0
+#define PCI_IDSEL_CS5536 14
+
+/********** STANDARD PCI-2.2 EXPANSION ****************/
+
+/*
+ * PCI configuration space
+ * we have to virtualize the PCI configure space head, so we should
+ * define the necessary IDs and some others.
+ */
+
+/* CONFIG of PCI VENDOR ID*/
+#define CFG_PCI_VENDOR_ID(mod_dev_id, sys_vendor_id) \
+ (((mod_dev_id) << 16) | (sys_vendor_id))
+
+/* VENDOR ID */
+#define CS5536_VENDOR_ID 0x1022
+
+/* DEVICE ID */
+#define CS5536_ISA_DEVICE_ID 0x2090
+#define CS5536_FLASH_DEVICE_ID 0x2091
+#define CS5536_IDE_DEVICE_ID 0x209a
+#define CS5536_ACC_DEVICE_ID 0x2093
+#define CS5536_OHCI_DEVICE_ID 0x2094
+#define CS5536_EHCI_DEVICE_ID 0x2095
+#define CS5536_UDC_DEVICE_ID 0x2096
+#define CS5536_OTG_DEVICE_ID 0x2097
+
+/* CLASS CODE : CLASS SUB-CLASS INTERFACE */
+#define CS5536_ISA_CLASS_CODE 0x060100
+#define CS5536_FLASH_CLASS_CODE 0x050100
+#define CS5536_IDE_CLASS_CODE 0x010180
+#define CS5536_ACC_CLASS_CODE 0x040100
+#define CS5536_OHCI_CLASS_CODE 0x0C0310
+#define CS5536_EHCI_CLASS_CODE 0x0C0320
+#define CS5536_UDC_CLASS_CODE 0x0C03FE
+#define CS5536_OTG_CLASS_CODE 0x0C0380
+
+/* BHLC : BIST HEADER-TYPE LATENCY-TIMER CACHE-LINE-SIZE */
+
+#define CFG_PCI_CACHE_LINE_SIZE(header_type, latency_timer) \
+ ((PCI_NONE_BIST << 24) | ((header_type) << 16) \
+ | ((latency_timer) << 8) | PCI_NORMAL_CACHE_LINE_SIZE);
+
+#define PCI_NONE_BIST 0x00 /* RO not implemented yet. */
+#define PCI_BRIDGE_HEADER_TYPE 0x80 /* RO */
+#define PCI_NORMAL_HEADER_TYPE 0x00
+#define PCI_NORMAL_LATENCY_TIMER 0x00
+#define PCI_NORMAL_CACHE_LINE_SIZE 0x08 /* RW */
+
+/* BAR */
+#define PCI_BAR0_REG 0x10
+#define PCI_BAR1_REG 0x14
+#define PCI_BAR2_REG 0x18
+#define PCI_BAR3_REG 0x1c
+#define PCI_BAR4_REG 0x20
+#define PCI_BAR5_REG 0x24
+#define PCI_BAR_COUNT 6
+#define PCI_BAR_RANGE_MASK 0xFFFFFFFF
+
+/* CARDBUS CIS POINTER */
+#define PCI_CARDBUS_CIS_POINTER 0x00000000
+
+/* SUBSYSTEM VENDOR ID */
+#define CS5536_SUB_VENDOR_ID CS5536_VENDOR_ID
+
+/* SUBSYSTEM ID */
+#define CS5536_ISA_SUB_ID CS5536_ISA_DEVICE_ID
+#define CS5536_FLASH_SUB_ID CS5536_FLASH_DEVICE_ID
+#define CS5536_IDE_SUB_ID CS5536_IDE_DEVICE_ID
+#define CS5536_ACC_SUB_ID CS5536_ACC_DEVICE_ID
+#define CS5536_OHCI_SUB_ID CS5536_OHCI_DEVICE_ID
+#define CS5536_EHCI_SUB_ID CS5536_EHCI_DEVICE_ID
+#define CS5536_UDC_SUB_ID CS5536_UDC_DEVICE_ID
+#define CS5536_OTG_SUB_ID CS5536_OTG_DEVICE_ID
+
+/* EXPANSION ROM BAR */
+#define PCI_EXPANSION_ROM_BAR 0x00000000
+
+/* CAPABILITIES POINTER */
+#define PCI_CAPLIST_POINTER 0x00000000
+#define PCI_CAPLIST_USB_POINTER 0x40
+/* INTERRUPT */
+
+#define CFG_PCI_INTERRUPT_LINE(pin, mod_intr) \
+ ((PCI_MAX_LATENCY << 24) | (PCI_MIN_GRANT << 16) | \
+ ((pin) << 8) | (mod_intr))
+
+#define PCI_MAX_LATENCY 0x40
+#define PCI_MIN_GRANT 0x00
+#define PCI_DEFAULT_PIN 0x01
+
+/*********** EXPANSION PCI REG ************************/
+
+/*
+ * ISA EXPANSION
+ */
+#define PCI_UART1_INT_REG 0x50
+#define PCI_UART2_INT_REG 0x54
+#define PCI_ISA_FIXUP_REG 0x58
+
+/*
+ * FLASH EXPANSION
+ */
+#define PCI_FLASH_INT_REG 0x50
+#define PCI_NOR_FLASH_CTRL_REG 0x40
+#define PCI_NOR_FLASH_T01_REG 0x44
+#define PCI_NOR_FLASH_T23_REG 0x48
+#define PCI_NAND_FLASH_TDATA_REG 0x60
+#define PCI_NAND_FLASH_TCTRL_REG 0x64
+#define PCI_NAND_FLASH_RSVD_REG 0x68
+#define PCI_FLASH_SELECT_REG 0x70
+
+/*
+ * IDE EXPANSION
+ */
+#define PCI_IDE_CFG_REG 0x40
+#define CS5536_IDE_FLASH_SIGNATURE 0xDEADBEEF
+#define PCI_IDE_DTC_REG 0x48
+#define PCI_IDE_CAST_REG 0x4C
+#define PCI_IDE_ETC_REG 0x50
+#define PCI_IDE_PM_REG 0x54
+#define PCI_IDE_INT_REG 0x60
+
+/*
+ * ACC EXPANSION
+ */
+#define PCI_ACC_INT_REG 0x50
+
+/*
+ * OHCI EXPANSION : INTTERUPT IS IMPLEMENTED BY THE OHCI
+ */
+#define PCI_OHCI_PM_REG 0x40
+#define PCI_OHCI_INT_REG 0x50
+
+/*
+ * EHCI EXPANSION
+ */
+#define PCI_EHCI_LEGSMIEN_REG 0x50
+#define PCI_EHCI_LEGSMISTS_REG 0x54
+#define PCI_EHCI_FLADJ_REG 0x60
+
+#endif /* _CS5536_PCI_H_ */
diff --git a/arch/mips/include/asm/mach-loongson/cs5536/cs5536_vsm.h b/arch/mips/include/asm/mach-loongson/cs5536/cs5536_vsm.h
new file mode 100644
index 0000000..41e7136
--- /dev/null
+++ b/arch/mips/include/asm/mach-loongson/cs5536/cs5536_vsm.h
@@ -0,0 +1,59 @@
+/*
+ * the Virtual Support Module(VSM) read/write interfaces
+ *
+ * Copyright (C) 2009 Lemote, Inc. & Institute of Computing Technology
+ * Author: Wu Zhangjin <wuzj@...ote.com>
+ */
+
+#ifndef _CS5536_VSM_H
+#define _CS5536_VSM_H
+
+#include <linux/types.h>
+
+#define DECLARE_CS5536_MODULE(name) \
+extern void pci_##name##_write_reg(int reg, u32 value); \
+extern u32 pci_##name##_read_reg(int reg);
+
+#define DEFINE_CS5536_MODULE(name) \
+void pci_##name##_write_reg(int reg, u32 value)\
+{ \
+ return; \
+} \
+u32 pci_##name##_read_reg(int reg) \
+{ \
+ return 0xffffffff; \
+} \
+
+/* core modules of cs5536 */
+
+/* ide module */
+DECLARE_CS5536_MODULE(ide)
+/* acc module */
+DECLARE_CS5536_MODULE(acc)
+/* ohci module */
+DECLARE_CS5536_MODULE(ohci)
+/* isa module */
+DECLARE_CS5536_MODULE(isa)
+/* ehci module */
+DECLARE_CS5536_MODULE(ehci)
+
+/* selective modules of cs5536 */
+/* flash(nor or nand flash) module */
+#ifdef CONFIG_CS5536_FLASH
+ DECLARE_CS5536_MODULE(flash)
+#else
+ DEFINE_CS5536_MODULE(flash)
+#endif
+/* otg module */
+#ifdef CONFIG_CS5536_OTG
+ DECLARE_CS5536_MODULE(otg)
+#else
+ DEFINE_CS5536_MODULE(otg)
+#endif
+/* udc module */
+#ifdef CONFIG_CS5536_UDC
+ DECLARE_CS5536_MODULE(udc)
+#else
+ DEFINE_CS5536_MODULE(udc)
+#endif
+#endif /* _CS5536_VSM_H */
diff --git a/arch/mips/include/asm/mach-loongson/loongson.h b/arch/mips/include/asm/mach-loongson/loongson.h
index 8ddfbd3..aaa2948 100644
--- a/arch/mips/include/asm/mach-loongson/loongson.h
+++ b/arch/mips/include/asm/mach-loongson/loongson.h
@@ -287,7 +287,7 @@ extern unsigned long _loongson_addrwincfg_base;
s##_WIN##w##_BASE = (src); \
s##_WIN##w##_MMAP = (src) | ADDRWIN_MAP_DST_##d; \
s##_WIN##w##_MASK = ~(size-1); \
-} while (0);
+} while (0)
#define LOONGSON_ADDRWIN_CPUTOPCI(win, src, dst, size) \
LOONGSON_ADDRWIN_CFG(CPU, PCI, win, src, dst, size)
diff --git a/arch/mips/include/asm/mach-loongson/machine.h b/arch/mips/include/asm/mach-loongson/machine.h
index 5f2cd3a..bb3dd37 100644
--- a/arch/mips/include/asm/mach-loongson/machine.h
+++ b/arch/mips/include/asm/mach-loongson/machine.h
@@ -13,6 +13,8 @@
#ifndef __MACHINE_H
#define __MACHINE_H
+#ifdef CONFIG_LEMOTE_FULOONG2E
+
#define MACH_NAME "lemote-fuloong(2e)"
#define LOONGSON_UART_BASE 0x1fd003f8
@@ -23,5 +25,33 @@
#define LOONGSON_TIMER_IRQ (MIPS_CPU_IRQ_BASE + 7)
#define LOONGSON_DMATIMEOUT_IRQ (LOONGSON_IRQ_BASE + 10)
+#else /* CONFIG_LEMOTE_FULOONG2F */
+
+#define MACH_NAME "lemote-fuloong(2f)"
+
+#define LOONGSON_UART_BASE 0x1fd002f8
+
+#define LOONGSON_TIMER_IRQ (MIPS_CPU_IRQ_BASE + 7) /* cpu timer */
+#define LOONGSON_PERFCNT_IRQ (MIPS_CPU_IRQ_BASE + 6) /* cpu perf counter */
+#define LOONGSON_NORTH_BRIDGE_IRQ (MIPS_CPU_IRQ_BASE + 6) /* bonito */
+#define LOONGSON_UART_IRQ (MIPS_CPU_IRQ_BASE + 3) /* cpu serial port */
+#define LOONGSON_SOUTH_BRIDGE_IRQ (MIPS_CPU_IRQ_BASE + 2) /* i8259 */
+
+#define LOONGSON_INT_BIT_GPIO1 (1 << 1)
+#define LOONGSON_INT_BIT_GPIO2 (1 << 2)
+#define LOONGSON_INT_BIT_GPIO3 (1 << 3)
+#define LOONGSON_INT_BIT_PCI_INTA (1 << 4)
+#define LOONGSON_INT_BIT_PCI_INTB (1 << 5)
+#define LOONGSON_INT_BIT_PCI_INTC (1 << 6)
+#define LOONGSON_INT_BIT_PCI_INTD (1 << 7)
+#define LOONGSON_INT_BIT_PCI_PERR (1 << 8)
+#define LOONGSON_INT_BIT_PCI_SERR (1 << 9)
+#define LOONGSON_INT_BIT_DDR (1 << 10)
+#define LOONGSON_INT_BIT_INT0 (1 << 11)
+#define LOONGSON_INT_BIT_INT1 (1 << 12)
+#define LOONGSON_INT_BIT_INT2 (1 << 13)
+#define LOONGSON_INT_BIT_INT3 (1 << 14)
+
+#endif
#endif /* ! __MACHINE_H */
diff --git a/arch/mips/loongson/Kconfig b/arch/mips/loongson/Kconfig
index 5874bf6..2bfda6e 100644
--- a/arch/mips/loongson/Kconfig
+++ b/arch/mips/loongson/Kconfig
@@ -28,4 +28,48 @@ config LEMOTE_FULOONG2E
Lemote Fulong mini-PC board based on the Chinese Loongson-2E CPU and
an FPGA northbridge
+config LEMOTE_FULOONG2F
+ bool "Lemote Fuloong(2f) mini-PC"
+ select ARCH_SPARSEMEM_ENABLE
+ select CEVT_R4K
+ select CSRC_R4K
+ select SYS_HAS_CPU_LOONGSON2F
+ select DMA_NONCOHERENT
+ select BOOT_ELF32
+ select BOARD_SCACHE
+ select HW_HAS_PCI
+ select I8259
+ select ISA
+ select IRQ_CPU
+ select SYS_SUPPORTS_32BIT_KERNEL
+ select SYS_SUPPORTS_64BIT_KERNEL
+ select SYS_SUPPORTS_LITTLE_ENDIAN
+ select SYS_SUPPORTS_HIGHMEM
+ select SYS_HAS_EARLY_PRINTK
+ select GENERIC_HARDIRQS_NO__DO_IRQ
+ select GENERIC_ISA_DMA_SUPPORT_BROKEN
+ select CPU_HAS_WB
+ select CS5536
+ help
+ Lemote Fulong mini-PC board based on the Chinese Loongson-2F CPU
+
endchoice
+
+config CS5536
+ bool
+
+config CS5536_FLASH
+ bool
+ depends on CS5536
+
+config CS5536_NOR_FLASH
+ bool
+ depends on CS5536_FLASH
+
+config CS5536_OTG
+ bool
+ depends on CS5536
+
+config CS5536_UDC
+ bool
+ depends on CS5536
diff --git a/arch/mips/loongson/Makefile b/arch/mips/loongson/Makefile
index cc9f1c8..e9b8a81 100644
--- a/arch/mips/loongson/Makefile
+++ b/arch/mips/loongson/Makefile
@@ -9,3 +9,9 @@ obj-$(CONFIG_LOONGSON_SYSTEMS) += common/
#
obj-$(CONFIG_LEMOTE_FULOONG2E) += fuloong-2e/
+
+#
+# Lemote Fuloong mini-PC (Loongson 2F-based)
+#
+
+obj-$(CONFIG_LEMOTE_FULOONG2F) += fuloong-2f/
diff --git a/arch/mips/loongson/common/Makefile b/arch/mips/loongson/common/Makefile
index 79b2736..71a4ea7 100644
--- a/arch/mips/loongson/common/Makefile
+++ b/arch/mips/loongson/common/Makefile
@@ -17,4 +17,10 @@ obj-$(CONFIG_EARLY_PRINTK) += early_printk.o
#
obj-$(CONFIG_RTC_DRV_CMOS) += rtc.o
+#
+# Enable CS5536 Virtual Support Module(VSM) for virtulize the PCI configure
+# space
+#
+obj-$(CONFIG_CS5536) += cs5536/
+
EXTRA_CFLAGS += -Werror
diff --git a/arch/mips/loongson/common/bonito-irq.c b/arch/mips/loongson/common/bonito-irq.c
index 1f43447..940c1f0 100644
--- a/arch/mips/loongson/common/bonito-irq.c
+++ b/arch/mips/loongson/common/bonito-irq.c
@@ -53,10 +53,13 @@ static struct irq_chip bonito_irq_type = {
.unmask = bonito_irq_enable,
};
+/* there is no need to handle dma timeout in loongson-2f based machines */
+#ifdef CONFIG_CPU_LOONGSON2E
static struct irqaction dma_timeout_irqaction = {
.handler = no_action,
.name = "dma_timeout",
};
+#endif
void bonito_irq_init(void)
{
@@ -65,5 +68,7 @@ void bonito_irq_init(void)
for (i = LOONGSON_IRQ_BASE; i < LOONGSON_IRQ_BASE + 32; i++)
set_irq_chip_and_handler(i, &bonito_irq_type, handle_level_irq);
+#ifdef CONFIG_CPU_LOONGSON2E
setup_irq(LOONGSON_DMATIMEOUT_IRQ, &dma_timeout_irqaction);
+#endif
}
diff --git a/arch/mips/loongson/common/cs5536/Makefile b/arch/mips/loongson/common/cs5536/Makefile
new file mode 100644
index 0000000..09bc177
--- /dev/null
+++ b/arch/mips/loongson/common/cs5536/Makefile
@@ -0,0 +1,20 @@
+#
+# Makefile for CS5536 support.
+#
+
+#
+# core modules
+#
+obj-$(CONFIG_CS5536) += cs5536_pci.o cs5536_ide.o cs5536_acc.o cs5536_ohci.o \
+ cs5536_isa.o cs5536_ehci.o
+#
+# selective modules
+#
+# add a CS5536_[MODULE] to your board in arch/mips/loongson/Kconfig
+#
+obj-$(CONFIG_CS5536_FLASH) += cs5536_flash.o
+obj-$(CONFIG_CS5536_NOR_FLASH) += cs5536_flash.o
+obj-$(CONFIG_CS5536_OTG) += cs5536_otg.o
+obj-$(CONFIG_CS5536_UDC) += cs5536_udc.o
+
+EXTRA_CFLAGS += -Werror
diff --git a/arch/mips/loongson/common/cs5536/cs5536_acc.c b/arch/mips/loongson/common/cs5536/cs5536_acc.c
new file mode 100644
index 0000000..487f4a6
--- /dev/null
+++ b/arch/mips/loongson/common/cs5536/cs5536_acc.c
@@ -0,0 +1,155 @@
+/*
+ * the ACC Virtual Support Module of AMD CS5536
+ *
+ * Copyright (C) 2007 Lemote, Inc. & Institute of Computing Technology
+ * Author : jlliu, liujl@...ote.com
+ *
+ * Copyright (C) 2009 Lemote, Inc. & Institute of Computing Technology
+ * Author: Wu Zhangjin, wuzj@...ote.com
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ */
+
+#include <cs5536/cs5536.h>
+#include <cs5536/cs5536_pci.h>
+
+/*
+ * acc_write: acc write transfering
+ */
+
+void pci_acc_write_reg(int reg, u32 value)
+{
+ u32 hi = 0, lo = value;
+
+ switch (reg) {
+ case PCI_COMMAND:
+ _rdmsr(GLIU_MSR_REG(GLIU_PAE), &hi, &lo);
+ if (value & PCI_COMMAND_MASTER)
+ lo |= (0x03 << 8);
+ else
+ lo &= ~(0x03 << 8);
+ _wrmsr(GLIU_MSR_REG(GLIU_PAE), hi, lo);
+ break;
+ case PCI_STATUS:
+ if (value & PCI_STATUS_PARITY) {
+ _rdmsr(SB_MSR_REG(SB_ERROR), &hi, &lo);
+ if (lo & SB_PARE_ERR_FLAG) {
+ lo = (lo & 0x0000ffff) | SB_PARE_ERR_FLAG;
+ _wrmsr(SB_MSR_REG(SB_ERROR), hi, lo);
+ }
+ }
+ break;
+ case PCI_BAR0_REG:
+ if (value == PCI_BAR_RANGE_MASK) {
+ _rdmsr(GLCP_MSR_REG(GLCP_SOFT_COM), &hi, &lo);
+ lo |= SOFT_BAR_ACC_FLAG;
+ _wrmsr(GLCP_MSR_REG(GLCP_SOFT_COM), hi, lo);
+ } else if (value & 0x01) {
+ value &= 0xfffffffc;
+ hi = 0xA0000000 | ((value & 0x000ff000) >> 12);
+ lo = 0x000fff80 | ((value & 0x00000fff) << 20);
+ _wrmsr(GLIU_MSR_REG(GLIU_IOD_BM1), hi, lo);
+ }
+ break;
+ case PCI_ACC_INT_REG:
+ _rdmsr(DIVIL_MSR_REG(PIC_YSEL_LOW), &hi, &lo);
+ /* disable all the usb interrupt in PIC */
+ lo &= ~(0xf << PIC_YSEL_LOW_ACC_SHIFT);
+ if (value) /* enable all the acc interrupt in PIC */
+ lo |= (CS5536_ACC_INTR << PIC_YSEL_LOW_ACC_SHIFT);
+ _wrmsr(DIVIL_MSR_REG(PIC_YSEL_LOW), hi, lo);
+ break;
+ default:
+ break;
+ }
+
+ return;
+}
+
+/*
+ * acc_read: acc read transfering
+ */
+
+u32 pci_acc_read_reg(int reg)
+{
+ u32 hi, lo;
+ u32 conf_data = 0;
+
+ switch (reg) {
+ case PCI_VENDOR_ID:
+ conf_data =
+ CFG_PCI_VENDOR_ID(CS5536_ACC_DEVICE_ID, CS5536_VENDOR_ID);
+ break;
+ case PCI_COMMAND:
+ _rdmsr(GLIU_MSR_REG(GLIU_IOD_BM1), &hi, &lo);
+ if (((lo & 0xfff00000) || (hi & 0x000000ff))
+ && ((hi & 0xf0000000) == 0xa0000000))
+ conf_data |= PCI_COMMAND_IO;
+ _rdmsr(GLIU_MSR_REG(GLIU_PAE), &hi, &lo);
+ if ((lo & 0x300) == 0x300)
+ conf_data |= PCI_COMMAND_MASTER;
+ break;
+ case PCI_STATUS:
+ conf_data |= PCI_STATUS_66MHZ;
+ conf_data |= PCI_STATUS_FAST_BACK;
+ _rdmsr(SB_MSR_REG(SB_ERROR), &hi, &lo);
+ if (lo & SB_PARE_ERR_FLAG)
+ conf_data |= PCI_STATUS_PARITY;
+ conf_data |= PCI_STATUS_DEVSEL_MEDIUM;
+ break;
+ case PCI_CLASS_REVISION:
+ _rdmsr(ACC_MSR_REG(ACC_CAP), &hi, &lo);
+ conf_data = lo & 0x000000ff;
+ conf_data |= (CS5536_ACC_CLASS_CODE << 8);
+ break;
+ case PCI_CACHE_LINE_SIZE:
+ conf_data =
+ CFG_PCI_CACHE_LINE_SIZE(PCI_NORMAL_HEADER_TYPE,
+ PCI_NORMAL_LATENCY_TIMER);
+ break;
+ case PCI_BAR0_REG:
+ _rdmsr(GLCP_MSR_REG(GLCP_SOFT_COM), &hi, &lo);
+ if (lo & SOFT_BAR_ACC_FLAG) {
+ conf_data = CS5536_ACC_RANGE |
+ PCI_BASE_ADDRESS_SPACE_IO;
+ lo &= ~SOFT_BAR_ACC_FLAG;
+ _wrmsr(GLCP_MSR_REG(GLCP_SOFT_COM), hi, lo);
+ } else {
+ _rdmsr(GLIU_MSR_REG(GLIU_IOD_BM1), &hi, &lo);
+ conf_data = (hi & 0x000000ff) << 12;
+ conf_data |= (lo & 0xfff00000) >> 20;
+ conf_data |= 0x01;
+ conf_data &= ~0x02;
+ }
+ break;
+ case PCI_BAR1_REG:
+ case PCI_BAR2_REG:
+ case PCI_BAR3_REG:
+ case PCI_BAR4_REG:
+ case PCI_BAR5_REG:
+ break;
+ case PCI_CARDBUS_CIS:
+ conf_data = PCI_CARDBUS_CIS_POINTER;
+ break;
+ case PCI_SUBSYSTEM_VENDOR_ID:
+ conf_data =
+ CFG_PCI_VENDOR_ID(CS5536_ACC_SUB_ID, CS5536_SUB_VENDOR_ID);
+ break;
+ case PCI_ROM_ADDRESS:
+ conf_data = PCI_EXPANSION_ROM_BAR;
+ break;
+ case PCI_CAPABILITY_LIST:
+ conf_data = PCI_CAPLIST_USB_POINTER;
+ break;
+ case PCI_INTERRUPT_LINE:
+ conf_data = CFG_PCI_INTERRUPT_LINE(PCI_DEFAULT_PIN, CS5536_ACC_INTR);
+ break;
+ default:
+ break;
+ }
+
+ return conf_data;
+}
diff --git a/arch/mips/loongson/common/cs5536/cs5536_ehci.c b/arch/mips/loongson/common/cs5536/cs5536_ehci.c
new file mode 100644
index 0000000..9c262fd
--- /dev/null
+++ b/arch/mips/loongson/common/cs5536/cs5536_ehci.c
@@ -0,0 +1,165 @@
+/*
+ * the EHCI Virtual Support Module of AMD CS5536
+ *
+ * Copyright (C) 2007 Lemote, Inc. & Institute of Computing Technology
+ * Author : jlliu, liujl@...ote.com
+ *
+ * Copyright (C) 2009 Lemote, Inc. & Institute of Computing Technology
+ * Author: Wu Zhangjin, wuzj@...ote.com
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ */
+
+#include <cs5536/cs5536.h>
+#include <cs5536/cs5536_pci.h>
+
+void pci_ehci_write_reg(int reg, u32 value)
+{
+ u32 hi = 0, lo = value;
+
+ switch (reg) {
+ case PCI_COMMAND:
+ _rdmsr(USB_MSR_REG(USB_EHCI), &hi, &lo);
+ if (value & PCI_COMMAND_MASTER)
+ hi |= PCI_COMMAND_MASTER;
+ else
+ hi &= ~PCI_COMMAND_MASTER;
+
+ if (value & PCI_COMMAND_MEMORY)
+ hi |= PCI_COMMAND_MEMORY;
+ else
+ hi &= ~PCI_COMMAND_MEMORY;
+ _wrmsr(USB_MSR_REG(USB_EHCI), hi, lo);
+ break;
+ case PCI_STATUS:
+ if (value & PCI_STATUS_PARITY) {
+ _rdmsr(SB_MSR_REG(SB_ERROR), &hi, &lo);
+ if (lo & SB_PARE_ERR_FLAG) {
+ lo = (lo & 0x0000ffff) | SB_PARE_ERR_FLAG;
+ _wrmsr(SB_MSR_REG(SB_ERROR), hi, lo);
+ }
+ }
+ break;
+ case PCI_BAR0_REG:
+ if (value == PCI_BAR_RANGE_MASK) {
+ _rdmsr(GLCP_MSR_REG(GLCP_SOFT_COM), &hi, &lo);
+ lo |= SOFT_BAR_EHCI_FLAG;
+ _wrmsr(GLCP_MSR_REG(GLCP_SOFT_COM), hi, lo);
+ } else if ((value & 0x01) == 0x00) {
+ _wrmsr(USB_MSR_REG(USB_EHCI), hi, lo);
+
+ value &= 0xfffffff0;
+ hi = 0x40000000 | ((value & 0xff000000) >> 24);
+ lo = 0x000fffff | ((value & 0x00fff000) << 8);
+ _wrmsr(GLIU_MSR_REG(GLIU_P2D_BM4), hi, lo);
+ }
+ break;
+ case PCI_EHCI_LEGSMIEN_REG:
+ _rdmsr(USB_MSR_REG(USB_EHCI), &hi, &lo);
+ hi &= 0x003f0000;
+ hi |= (value & 0x3f) << 16;
+ _wrmsr(USB_MSR_REG(USB_EHCI), hi, lo);
+ break;
+ case PCI_EHCI_FLADJ_REG:
+ _rdmsr(USB_MSR_REG(USB_EHCI), &hi, &lo);
+ hi &= ~0x00003f00;
+ hi |= value & 0x00003f00;
+ _wrmsr(USB_MSR_REG(USB_EHCI), hi, lo);
+ break;
+ default:
+ break;
+ }
+
+ return;
+}
+
+u32 pci_ehci_read_reg(int reg)
+{
+ u32 conf_data = 0;
+ u32 hi, lo;
+
+ switch (reg) {
+ case PCI_VENDOR_ID:
+ conf_data =
+ CFG_PCI_VENDOR_ID(CS5536_EHCI_DEVICE_ID, CS5536_VENDOR_ID);
+ break;
+ case PCI_COMMAND:
+ _rdmsr(USB_MSR_REG(USB_EHCI), &hi, &lo);
+ if (hi & PCI_COMMAND_MASTER)
+ conf_data |= PCI_COMMAND_MASTER;
+ if (hi & PCI_COMMAND_MEMORY)
+ conf_data |= PCI_COMMAND_MEMORY;
+ break;
+ case PCI_STATUS:
+ conf_data |= PCI_STATUS_66MHZ;
+ conf_data |= PCI_STATUS_FAST_BACK;
+ _rdmsr(SB_MSR_REG(SB_ERROR), &hi, &lo);
+ if (lo & SB_PARE_ERR_FLAG)
+ conf_data |= PCI_STATUS_PARITY;
+ conf_data |= PCI_STATUS_DEVSEL_MEDIUM;
+ break;
+ case PCI_CLASS_REVISION:
+ _rdmsr(USB_MSR_REG(USB_CAP), &hi, &lo);
+ conf_data = lo & 0x000000ff;
+ conf_data |= (CS5536_EHCI_CLASS_CODE << 8);
+ break;
+ case PCI_CACHE_LINE_SIZE:
+ conf_data =
+ CFG_PCI_CACHE_LINE_SIZE(PCI_NORMAL_HEADER_TYPE,
+ PCI_NORMAL_LATENCY_TIMER);
+ break;
+ case PCI_BAR0_REG:
+ _rdmsr(GLCP_MSR_REG(GLCP_SOFT_COM), &hi, &lo);
+ if (lo & SOFT_BAR_EHCI_FLAG) {
+ conf_data = CS5536_EHCI_RANGE |
+ PCI_BASE_ADDRESS_SPACE_MEMORY;
+ lo &= ~SOFT_BAR_EHCI_FLAG;
+ _wrmsr(GLCP_MSR_REG(GLCP_SOFT_COM), hi, lo);
+ } else {
+ _rdmsr(USB_MSR_REG(USB_EHCI), &hi, &lo);
+ conf_data = lo & 0xfffff000;
+ }
+ break;
+ case PCI_BAR1_REG:
+ case PCI_BAR2_REG:
+ case PCI_BAR3_REG:
+ case PCI_BAR4_REG:
+ case PCI_BAR5_REG:
+ break;
+ case PCI_CARDBUS_CIS:
+ conf_data = PCI_CARDBUS_CIS_POINTER;
+ break;
+ case PCI_SUBSYSTEM_VENDOR_ID:
+ conf_data =
+ CFG_PCI_VENDOR_ID(CS5536_EHCI_SUB_ID, CS5536_SUB_VENDOR_ID);
+ break;
+ case PCI_ROM_ADDRESS:
+ conf_data = PCI_EXPANSION_ROM_BAR;
+ break;
+ case PCI_CAPABILITY_LIST:
+ conf_data = PCI_CAPLIST_USB_POINTER;
+ break;
+ case PCI_INTERRUPT_LINE:
+ conf_data = CFG_PCI_INTERRUPT_LINE(PCI_DEFAULT_PIN, CS5536_USB_INTR);
+ break;
+ case PCI_EHCI_LEGSMIEN_REG:
+ _rdmsr(USB_MSR_REG(USB_EHCI), &hi, &lo);
+ conf_data = (hi & 0x003f0000) >> 16;
+ break;
+ case PCI_EHCI_LEGSMISTS_REG:
+ _rdmsr(USB_MSR_REG(USB_EHCI), &hi, &lo);
+ conf_data = (hi & 0x3f000000) >> 24;
+ break;
+ case PCI_EHCI_FLADJ_REG:
+ _rdmsr(USB_MSR_REG(USB_EHCI), &hi, &lo);
+ conf_data = hi & 0x00003f00;
+ break;
+ default:
+ break;
+ }
+
+ return conf_data;
+}
diff --git a/arch/mips/loongson/common/cs5536/cs5536_flash.c b/arch/mips/loongson/common/cs5536/cs5536_flash.c
new file mode 100644
index 0000000..88226c8
--- /dev/null
+++ b/arch/mips/loongson/common/cs5536/cs5536_flash.c
@@ -0,0 +1,450 @@
+/*
+ * the FLASH Virtual Support Module of AMD CS5536
+ *
+ * Copyright (C) 2007 Lemote, Inc. & Institute of Computing Technology
+ * Author : jlliu, liujl@...ote.com
+ *
+ * Copyright (C) 2009 Lemote, Inc. & Institute of Computing Technology
+ * Author: Wu Zhangjin, wuzj@...ote.com
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ */
+
+#include <cs5536/cs5536.h>
+#include <cs5536/cs5536_pci.h>
+
+/*
+ * enable the region of flashs(NOR or NAND)
+ *
+ * the same as the DIVIL other modules above, two groups of regs should be
+ * modified here to control the region. DIVIL flash LBAR and the
+ * RCONFx(6~9 reserved).
+ */
+static void flash_lbar_enable(void)
+{
+ u32 hi, lo;
+ int offset;
+
+ for (offset = DIVIL_LBAR_FLSH0; offset <= DIVIL_LBAR_FLSH3; offset++) {
+ _rdmsr(DIVIL_MSR_REG(offset), &hi, &lo);
+ hi |= 0x1;
+ _wrmsr(DIVIL_MSR_REG(offset), hi, lo);
+ }
+
+ for (offset = SB_R6; offset <= SB_R9; offset++) {
+ _rdmsr(SB_MSR_REG(offset), &hi, &lo);
+ lo |= 0x1;
+ _wrmsr(SB_MSR_REG(offset), hi, lo);
+ }
+
+ return;
+}
+
+/*
+ * disable the region of flashs(NOR or NAND)
+ */
+static void flash_lbar_disable(void)
+{
+ u32 hi, lo;
+ int offset;
+
+ for (offset = DIVIL_LBAR_FLSH0; offset <= DIVIL_LBAR_FLSH3; offset++) {
+ _rdmsr(DIVIL_MSR_REG(offset), &hi, &lo);
+ hi &= ~0x01;
+ _wrmsr(DIVIL_MSR_REG(offset), hi, lo);
+ }
+ for (offset = SB_R6; offset <= SB_R9; offset++) {
+ _rdmsr(SB_MSR_REG(offset), &hi, &lo);
+ lo &= ~0x01;
+ _wrmsr(SB_MSR_REG(offset), hi, lo);
+ }
+
+ return;
+}
+
+#ifndef CONFIG_CS5536_NOR_FLASH /* for nand flash */
+
+void pci_flash_write_bar(int n, u32 value)
+{
+ u32 hi = 0, lo = value;
+
+ if (value == PCI_BAR_RANGE_MASK) {
+ /* make the flag for reading the bar length. */
+ _rdmsr(GLCP_MSR_REG(GLCP_SOFT_COM), &hi, &lo);
+ lo |= (SOFT_BAR_FLSH0_FLAG << n);
+ _wrmsr(GLCP_MSR_REG(GLCP_SOFT_COM), hi, lo);
+ } else if ((value & 0x01) == 0x00) {
+ /* mem space nand flash native reg base addr */
+ hi = 0xfffff007;
+ lo &= CS5536_FLSH_RANGE;
+ _wrmsr(DIVIL_MSR_REG(DIVIL_LBAR_FLSH0 + n), hi, lo);
+
+ /* RCONFx is 4KB in units for mem space. */
+ hi = ((value & 0xfffff000) << 12) |
+ ((CS5536_FLSH_LENGTH & 0xfffff000) - (1 << 12)) | 0x00;
+ lo = ((value & 0xfffff000) << 12) | 0x01;
+ _wrmsr(SB_MSR_REG(SB_R6 + n), hi, lo);
+ }
+ return;
+}
+
+void pci_flash_write_reg(int reg, u32 value)
+{
+ u32 hi = 0, lo = value;
+
+ switch (reg) {
+ case PCI_COMMAND:
+ if (value & PCI_COMMAND_MEMORY)
+ flash_lbar_enable();
+ else
+ flash_lbar_disable();
+ break;
+ case PCI_STATUS:
+ if (value & PCI_STATUS_PARITY) {
+ _rdmsr(SB_MSR_REG(SB_ERROR), &hi, &lo);
+ if (lo & SB_PARE_ERR_FLAG) {
+ lo = (lo & 0x0000ffff) | SB_PARE_ERR_FLAG;
+ _wrmsr(SB_MSR_REG(SB_ERROR), hi, lo);
+ }
+ }
+ break;
+ case PCI_BAR0_REG:
+ pci_flash_write_bar(0, value);
+ break;
+ case PCI_BAR1_REG:
+ pci_flash_write_bar(1, value);
+ break;
+ case PCI_BAR2_REG:
+ pci_flash_write_bar(2, value);
+ break;
+ case PCI_BAR3_REG:
+ pci_flash_write_bar(3, value);
+ break;
+ case PCI_FLASH_INT_REG:
+ _rdmsr(DIVIL_MSR_REG(PIC_YSEL_LOW), &hi, &lo);
+ /* disable all the flash interrupt in PIC */
+ lo &= ~(0xf << PIC_YSEL_LOW_FLASH_SHIFT);
+ if (value) /* enable all the flash interrupt in PIC */
+ lo |= (CS5536_FLASH_INTR << PIC_YSEL_LOW_FLASH_SHIFT);
+ _wrmsr(DIVIL_MSR_REG(PIC_YSEL_LOW), hi, lo);
+ break;
+ case PCI_NAND_FLASH_TDATA_REG:
+ _wrmsr(DIVIL_MSR_REG(NANDF_DATA), hi, lo);
+ break;
+ case PCI_NAND_FLASH_TCTRL_REG:
+ lo &= 0x00000fff;
+ _wrmsr(DIVIL_MSR_REG(NANDF_CTRL), hi, lo);
+ break;
+ case PCI_NAND_FLASH_RSVD_REG:
+ _wrmsr(DIVIL_MSR_REG(NANDF_RSVD), hi, lo);
+ break;
+ case PCI_FLASH_SELECT_REG:
+ if (value == CS5536_IDE_FLASH_SIGNATURE) {
+ _rdmsr(DIVIL_MSR_REG(DIVIL_BALL_OPTS), &hi, &lo);
+ lo &= ~0x01;
+ _wrmsr(DIVIL_MSR_REG(DIVIL_BALL_OPTS), hi, lo);
+ }
+ break;
+ default:
+ break;
+ }
+
+ return;
+}
+
+u32 pci_flash_read_bar(int n)
+{
+ u32 hi, lo;
+ u32 conf_data = 0;
+
+ _rdmsr(GLCP_MSR_REG(GLCP_SOFT_COM), &hi, &lo);
+ if (lo & (SOFT_BAR_FLSH0_FLAG << n)) {
+ conf_data = CS5536_FLSH_RANGE | PCI_BASE_ADDRESS_SPACE_MEMORY;
+ lo &= ~(SOFT_BAR_FLSH0_FLAG << n);
+ _wrmsr(GLCP_MSR_REG(GLCP_SOFT_COM), hi, lo);
+ } else {
+ _rdmsr(DIVIL_MSR_REG(DIVIL_LBAR_FLSH0 + n), &hi, &lo);
+ conf_data = lo;
+ conf_data &= ~0x0f;
+ }
+
+ return conf_data;
+}
+
+u32 pci_flash_read_reg(int reg)
+{
+ u32 conf_data = 0;
+ u32 hi, lo;
+
+ switch (reg) {
+ case PCI_VENDOR_ID:
+ conf_data =
+ CFG_PCI_VENDOR_ID(CS5536_FLASH_DEVICE_ID, CS5536_VENDOR_ID);
+ break;
+ case PCI_COMMAND:
+ /* we just read one lbar for returning. */
+ _rdmsr(DIVIL_MSR_REG(DIVIL_LBAR_FLSH0), &hi, &lo);
+ if (hi & 0x1)
+ conf_data |= PCI_COMMAND_MEMORY;
+ break;
+ case PCI_STATUS:
+ conf_data |= PCI_STATUS_66MHZ;
+ conf_data |= PCI_STATUS_FAST_BACK;
+ _rdmsr(SB_MSR_REG(SB_ERROR), &hi, &lo);
+ if (lo & SB_PARE_ERR_FLAG)
+ conf_data |= PCI_STATUS_PARITY;
+ conf_data |= PCI_STATUS_DEVSEL_MEDIUM;
+ break;
+ case PCI_CLASS_REVISION:
+ _rdmsr(DIVIL_MSR_REG(DIVIL_CAP), &hi, &lo);
+ conf_data = lo & 0x000000ff;
+ conf_data |= (CS5536_FLASH_CLASS_CODE << 8);
+ break;
+ case PCI_CACHE_LINE_SIZE:
+ conf_data =
+ CFG_PCI_CACHE_LINE_SIZE(PCI_NORMAL_HEADER_TYPE,
+ PCI_NORMAL_LATENCY_TIMER);
+ break;
+ case PCI_BAR0_REG:
+ return pci_flash_read_bar(0);
+ break;
+ case PCI_BAR1_REG:
+ return pci_flash_read_bar(1);
+ break;
+ case PCI_BAR2_REG:
+ return pci_flash_read_bar(2);
+ break;
+ case PCI_BAR3_REG:
+ return pci_flash_read_bar(3);
+ break;
+ case PCI_CARDBUS_CIS:
+ conf_data = PCI_CARDBUS_CIS_POINTER;
+ break;
+ case PCI_SUBSYSTEM_VENDOR_ID:
+ conf_data =
+ CFG_PCI_VENDOR_ID(CS5536_FLASH_SUB_ID,
+ CS5536_SUB_VENDOR_ID);
+ break;
+ case PCI_ROM_ADDRESS:
+ conf_data = PCI_EXPANSION_ROM_BAR;
+ break;
+ case PCI_CAPABILITY_LIST:
+ conf_data = PCI_CAPLIST_POINTER;
+ break;
+ case PCI_INTERRUPT_LINE:
+ conf_data = CFG_PCI_INTERRUPT_LINE(PCI_DEFAULT_PIN, CS5536_FLASH_INTR);
+ break;
+ case PCI_NAND_FLASH_TDATA_REG:
+ _rdmsr(DIVIL_MSR_REG(NANDF_DATA), &hi, &lo);
+ conf_data = lo;
+ break;
+ case PCI_NAND_FLASH_TCTRL_REG:
+ _rdmsr(DIVIL_MSR_REG(NANDF_CTRL), &hi, &lo);
+ conf_data = lo & 0x00000fff;
+ break;
+ case PCI_NAND_FLASH_RSVD_REG:
+ _rdmsr(DIVIL_MSR_REG(NANDF_RSVD), &hi, &lo);
+ conf_data = lo;
+ break;
+ case PCI_FLASH_SELECT_REG:
+ _rdmsr(DIVIL_MSR_REG(DIVIL_BALL_OPTS), &hi, &lo);
+ conf_data = lo & 0x01;
+ break;
+ default:
+ break;
+ }
+ return 0;
+}
+
+#else /* CONFIG_CS5536_NOR_FLASH */
+
+void pci_flash_write_bar(int n, u32 value)
+{
+ u32 hi = 0, lo = value;
+
+ if (value == PCI_BAR_RANGE_MASK) {
+ _rdmsr(GLCP_MSR_REG(GLCP_SOFT_COM), &hi, &lo);
+ lo |= (SOFT_BAR_FLSH0_FLAG << n);
+ _wrmsr(GLCP_MSR_REG(GLCP_SOFT_COM), hi, lo);
+ } else if (value & 0x01) {
+ /* IO space of 16bytes nor flash */
+ hi = 0x0000fff1;
+ lo &= CS5536_FLSH_RANGE;
+ _wrmsr(DIVIL_MSR_REG(DIVIL_LBAR_FLSH0 + n), hi, lo);
+
+ /* RCONFx used for 16bytes reserved. */
+ hi = ((value & 0x000ffffc) << 12) | ((CS5536_FLSH_LENGTH - 4)
+ << 12) | 0x01;
+ lo = ((value & 0x000ffffc) << 12) | 0x01;
+ _wrmsr(SB_MSR_REG(SB_R6 + n), hi, lo);
+ }
+ return;
+}
+
+void pci_flash_write_reg(int reg, u32 value)
+{
+ u32 hi = 0, lo = value;
+
+ switch (reg) {
+ case PCI_COMMAND:
+ if (value & PCI_COMMAND_IO)
+ flash_lbar_enable();
+ else
+ flash_lbar_disable();
+ break;
+ case PCI_STATUS:
+ if (value & PCI_STATUS_PARITY) {
+ _rdmsr(SB_MSR_REG(SB_ERROR), &hi, &lo);
+ if (lo & SB_PARE_ERR_FLAG) {
+ lo = (lo & 0x0000ffff) | SB_PARE_ERR_FLAG;
+ _wrmsr(SB_MSR_REG(SB_ERROR), hi, lo);
+ }
+ }
+ break;
+ case PCI_BAR0_REG:
+ pci_flash_write_bar(0, value);
+ break;
+ case PCI_BAR1_REG:
+ pci_flash_write_bar(1, value);
+ break;
+ case PCI_BAR2_REG:
+ pci_flash_write_bar(2, value);
+ break;
+ case PCI_BAR3_REG:
+ pci_flash_write_bar(3, value);
+ break;
+ case PCI_FLASH_INT_REG:
+ _rdmsr(DIVIL_MSR_REG(PIC_YSEL_LOW), &hi, &lo);
+ /* disable all the flash interrupt in PIC */
+ lo &= ~(0xf << PIC_YSEL_LOW_FLASH_SHIFT);
+ if (value) /* enable all the flash interrupt in PIC */
+ lo |= (CS5536_FLASH_INTR << PIC_YSEL_LOW_FLASH_SHIFT);
+ _wrmsr(DIVIL_MSR_REG(PIC_YSEL_LOW), hi, lo);
+ break;
+ case PCI_NOR_FLASH_CTRL_REG:
+ lo &= 0x000000ff;
+ _wrmsr(DIVIL_MSR_REG(NORF_CTRL), hi, lo);
+ break;
+ case PCI_NOR_FLASH_T01_REG:
+ _wrmsr(DIVIL_MSR_REG(NORF_T01), hi, lo);
+ break;
+ case PCI_NOR_FLASH_T23_REG:
+ _wrmsr(DIVIL_MSR_REG(NORF_T23), hi, lo);
+ break;
+ case PCI_FLASH_SELECT_REG:
+ if (value == CS5536_IDE_FLASH_SIGNATURE) {
+ _rdmsr(DIVIL_MSR_REG(DIVIL_BALL_OPTS), &hi, &lo);
+ lo &= ~0x01;
+ _wrmsr(DIVIL_MSR_REG(DIVIL_BALL_OPTS), hi, lo);
+ }
+ break;
+ default:
+ break;
+ }
+ return;
+}
+
+u32 pci_flash_read_bar(int n)
+{
+ u32 hi, lo;
+ u32 conf_data = 0;
+
+ _rdmsr(GLCP_MSR_REG(GLCP_SOFT_COM), &hi, &lo);
+ if (lo & (SOFT_BAR_FLSH0_FLAG << n)) {
+ conf_data = CS5536_FLSH_RANGE | PCI_BASE_ADDRESS_SPACE_IO;
+ lo &= ~(SOFT_BAR_FLSH0_FLAG << n);
+ _wrmsr(GLCP_MSR_REG(GLCP_SOFT_COM), hi, lo);
+ } else {
+ _rdmsr(DIVIL_MSR_REG(DIVIL_LBAR_FLSH0 + n), &hi, &lo);
+ conf_data = lo & 0x0000ffff;
+ conf_data |= 0x01;
+ conf_data &= ~0x02;
+ }
+
+ return conf_data;
+}
+
+u32 pci_flash_read_reg(int reg)
+{
+ u32 conf_data = 0;
+ u32 hi, lo;
+
+ switch (reg) {
+ case PCI_VENDOR_ID:
+ conf_data =
+ CFG_PCI_VENDOR_ID(CS5536_FLASH_DEVICE_ID, CS5536_VENDOR_ID);
+ break;
+ case PCI_COMMAND:
+ /* we just check one flash bar for returning. */
+ _rdmsr(DIVIL_MSR_REG(DIVIL_LBAR_FLSH0), &hi, &lo);
+ if (hi & PCI_COMMAND_IO)
+ conf_data |= PCI_COMMAND_IO;
+ break;
+ case PCI_STATUS:
+ conf_data |= PCI_STATUS_66MHZ;
+ conf_data |= PCI_STATUS_FAST_BACK;
+ _rdmsr(SB_MSR_REG(SB_ERROR), &hi, &lo);
+ if (lo & SB_PARE_ERR_FLAG)
+ conf_data |= PCI_STATUS_PARITY;
+ conf_data |= PCI_STATUS_DEVSEL_MEDIUM;
+ break;
+ case PCI_CLASS_REVISION:
+ _rdmsr(DIVIL_MSR_REG(DIVIL_CAP), &hi, &lo);
+ conf_data = lo & 0x000000ff;
+ conf_data |= (CS5536_FLASH_CLASS_CODE << 8);
+ break;
+ case PCI_CACHE_LINE_SIZE:
+ conf_data =
+ CFG_PCI_CACHE_LINE_SIZE(PCI_NORMAL_HEADER_TYPE,
+ PCI_NORMAL_LATENCY_TIMER);
+ break;
+ case PCI_BAR0_REG:
+ return pci_flash_read_bar(0);
+ break;
+ case PCI_BAR1_REG:
+ return pci_flash_read_bar(1);
+ break;
+ case PCI_BAR2_REG:
+ return pci_flash_read_bar(2);
+ break;
+ case PCI_BAR3_REG:
+ return pci_flash_read_bar(3);
+ break;
+ case PCI_CARDBUS_CIS:
+ conf_data = PCI_CARDBUS_CIS_POINTER;
+ break;
+ case PCI_SUBSYSTEM_VENDOR_ID:
+ conf_data =
+ CFG_PCI_VENDOR_ID(CS5536_FLASH_SUB_ID,
+ CS5536_SUB_VENDOR_ID);
+ break;
+ case PCI_ROM_ADDRESS:
+ conf_data = PCI_EXPANSION_ROM_BAR;
+ break;
+ case PCI_CAPABILITY_LIST:
+ conf_data = PCI_CAPLIST_POINTER;
+ break;
+ case PCI_INTERRUPT_LINE:
+ conf_data = CFG_PCI_INTERRUPT_LINE(PCI_DEFAULT_PIN, CS5536_FLASH_INTR);
+ break;
+ case PCI_NOR_FLASH_CTRL_REG:
+ _rdmsr(DIVIL_MSR_REG(NORF_CTRL), &hi, &lo);
+ conf_data = lo & 0x000000ff;
+ break;
+ case PCI_NOR_FLASH_T01_REG:
+ _rdmsr(DIVIL_MSR_REG(NORF_T01), &hi, &lo);
+ conf_data = lo;
+ break;
+ case PCI_NOR_FLASH_T23_REG:
+ _rdmsr(DIVIL_MSR_REG(NORF_T23), &hi, &lo);
+ conf_data = lo;
+ break;
+ default:
+ break;
+ }
+ return conf_data;
+}
+#endif /* CONFIG_CS5536_NOR_FLASH */
diff --git a/arch/mips/loongson/common/cs5536/cs5536_ide.c b/arch/mips/loongson/common/cs5536/cs5536_ide.c
new file mode 100644
index 0000000..fa605cd
--- /dev/null
+++ b/arch/mips/loongson/common/cs5536/cs5536_ide.c
@@ -0,0 +1,193 @@
+/*
+ * the IDE Virtual Support Module of AMD CS5536
+ *
+ * Copyright (C) 2007 Lemote, Inc. & Institute of Computing Technology
+ * Author : jlliu, liujl@...ote.com
+ *
+ * Copyright (C) 2009 Lemote, Inc. & Institute of Computing Technology
+ * Author: Wu Zhangjin, wuzj@...ote.com
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ */
+
+#include <cs5536/cs5536.h>
+#include <cs5536/cs5536_pci.h>
+
+/*
+ * ide_write : ide write transfering
+ */
+void pci_ide_write_reg(int reg, u32 value)
+{
+ u32 hi = 0, lo = value;
+
+ switch (reg) {
+ case PCI_COMMAND:
+ _rdmsr(GLIU_MSR_REG(GLIU_PAE), &hi, &lo);
+ if (value & PCI_COMMAND_MASTER)
+ lo |= (0x03 << 4);
+ else
+ lo &= ~(0x03 << 4);
+ _wrmsr(GLIU_MSR_REG(GLIU_PAE), hi, lo);
+ break;
+ case PCI_STATUS:
+ if (value & PCI_STATUS_PARITY) {
+ _rdmsr(SB_MSR_REG(SB_ERROR), &hi, &lo);
+ if (lo & SB_PARE_ERR_FLAG) {
+ lo = (lo & 0x0000ffff) | SB_PARE_ERR_FLAG;
+ _wrmsr(SB_MSR_REG(SB_ERROR), hi, lo);
+ }
+ }
+ break;
+ case PCI_CACHE_LINE_SIZE:
+ value &= 0x0000ff00;
+ _rdmsr(SB_MSR_REG(SB_CTRL), &hi, &lo);
+ hi &= 0xffffff00;
+ hi |= (value >> 8);
+ _wrmsr(SB_MSR_REG(SB_CTRL), hi, lo);
+ break;
+ case PCI_BAR4_REG:
+ if (value == PCI_BAR_RANGE_MASK) {
+ _rdmsr(GLCP_MSR_REG(GLCP_SOFT_COM), &hi, &lo);
+ lo |= SOFT_BAR_IDE_FLAG;
+ _wrmsr(GLCP_MSR_REG(GLCP_SOFT_COM), hi, lo);
+ } else if (value & 0x01) {
+ lo = (value & 0xfffffff0) | 0x1;
+ _wrmsr(IDE_MSR_REG(IDE_IO_BAR), hi, lo);
+
+ value &= 0xfffffffc;
+ hi = 0x60000000 | ((value & 0x000ff000) >> 12);
+ lo = 0x000ffff0 | ((value & 0x00000fff) << 20);
+ _wrmsr(GLIU_MSR_REG(GLIU_IOD_BM2), hi, lo);
+ }
+ break;
+ case PCI_IDE_CFG_REG:
+ if (value == CS5536_IDE_FLASH_SIGNATURE) {
+ _rdmsr(DIVIL_MSR_REG(DIVIL_BALL_OPTS), &hi, &lo);
+ lo |= 0x01;
+ _wrmsr(DIVIL_MSR_REG(DIVIL_BALL_OPTS), hi, lo);
+ } else
+ _wrmsr(IDE_MSR_REG(IDE_CFG), hi, lo);
+ break;
+ case PCI_IDE_DTC_REG:
+ _wrmsr(IDE_MSR_REG(IDE_DTC), hi, lo);
+ break;
+ case PCI_IDE_CAST_REG:
+ _wrmsr(IDE_MSR_REG(IDE_CAST), hi, lo);
+ break;
+ case PCI_IDE_ETC_REG:
+ _wrmsr(IDE_MSR_REG(IDE_ETC), hi, lo);
+ break;
+ case PCI_IDE_PM_REG:
+ _wrmsr(IDE_MSR_REG(IDE_INTERNAL_PM), hi, lo);
+ break;
+ default:
+ break;
+ }
+
+ return;
+}
+
+/*
+ * ide_read : ide read tranfering.
+ */
+u32 pci_ide_read_reg(int reg)
+{
+ u32 conf_data = 0;
+ u32 hi, lo;
+
+ switch (reg) {
+ case PCI_VENDOR_ID:
+ conf_data =
+ CFG_PCI_VENDOR_ID(CS5536_IDE_DEVICE_ID, CS5536_VENDOR_ID);
+ break;
+ case PCI_COMMAND:
+ _rdmsr(IDE_MSR_REG(IDE_IO_BAR), &hi, &lo);
+ if (lo & 0xfffffff0)
+ conf_data |= PCI_COMMAND_IO;
+ _rdmsr(GLIU_MSR_REG(GLIU_PAE), &hi, &lo);
+ if ((lo & 0x30) == 0x30)
+ conf_data |= PCI_COMMAND_MASTER;
+ break;
+ case PCI_STATUS:
+ conf_data |= PCI_STATUS_66MHZ;
+ conf_data |= PCI_STATUS_FAST_BACK;
+ _rdmsr(SB_MSR_REG(SB_ERROR), &hi, &lo);
+ if (lo & SB_PARE_ERR_FLAG)
+ conf_data |= PCI_STATUS_PARITY;
+ conf_data |= PCI_STATUS_DEVSEL_MEDIUM;
+ break;
+ case PCI_CLASS_REVISION:
+ _rdmsr(IDE_MSR_REG(IDE_CAP), &hi, &lo);
+ conf_data = lo & 0x000000ff;
+ conf_data |= (CS5536_IDE_CLASS_CODE << 8);
+ break;
+ case PCI_CACHE_LINE_SIZE:
+ _rdmsr(SB_MSR_REG(SB_CTRL), &hi, &lo);
+ hi &= 0x000000f8;
+ conf_data = CFG_PCI_CACHE_LINE_SIZE(PCI_NORMAL_HEADER_TYPE, hi);
+ break;
+ case PCI_BAR0_REG:
+ case PCI_BAR1_REG:
+ case PCI_BAR2_REG:
+ case PCI_BAR3_REG:
+ break;
+ case PCI_BAR4_REG:
+ _rdmsr(GLCP_MSR_REG(GLCP_SOFT_COM), &hi, &lo);
+ if (lo & SOFT_BAR_IDE_FLAG) {
+ conf_data = CS5536_IDE_RANGE |
+ PCI_BASE_ADDRESS_SPACE_IO;
+ lo &= ~SOFT_BAR_IDE_FLAG;
+ _wrmsr(GLCP_MSR_REG(GLCP_SOFT_COM), hi, lo);
+ } else {
+ _rdmsr(IDE_MSR_REG(IDE_IO_BAR), &hi, &lo);
+ conf_data = lo & 0xfffffff0;
+ conf_data |= 0x01;
+ conf_data &= ~0x02;
+ }
+ break;
+ case PCI_BAR5_REG:
+ break;
+ case PCI_CARDBUS_CIS:
+ conf_data = PCI_CARDBUS_CIS_POINTER;
+ break;
+ case PCI_SUBSYSTEM_VENDOR_ID:
+ conf_data =
+ CFG_PCI_VENDOR_ID(CS5536_IDE_SUB_ID, CS5536_SUB_VENDOR_ID);
+ break;
+ case PCI_ROM_ADDRESS:
+ conf_data = PCI_EXPANSION_ROM_BAR;
+ break;
+ case PCI_CAPABILITY_LIST:
+ conf_data = PCI_CAPLIST_POINTER;
+ break;
+ case PCI_INTERRUPT_LINE:
+ conf_data = CFG_PCI_INTERRUPT_LINE(PCI_DEFAULT_PIN, CS5536_IDE_INTR);
+ break;
+ case PCI_IDE_CFG_REG:
+ _rdmsr(IDE_MSR_REG(IDE_CFG), &hi, &lo);
+ conf_data = lo;
+ break;
+ case PCI_IDE_DTC_REG:
+ _rdmsr(IDE_MSR_REG(IDE_DTC), &hi, &lo);
+ conf_data = lo;
+ break;
+ case PCI_IDE_CAST_REG:
+ _rdmsr(IDE_MSR_REG(IDE_CAST), &hi, &lo);
+ conf_data = lo;
+ break;
+ case PCI_IDE_ETC_REG:
+ _rdmsr(IDE_MSR_REG(IDE_ETC), &hi, &lo);
+ conf_data = lo;
+ case PCI_IDE_PM_REG:
+ _rdmsr(IDE_MSR_REG(IDE_INTERNAL_PM), &hi, &lo);
+ conf_data = lo;
+ break;
+ default:
+ break;
+ }
+
+ return conf_data;
+}
diff --git a/arch/mips/loongson/common/cs5536/cs5536_isa.c b/arch/mips/loongson/common/cs5536/cs5536_isa.c
new file mode 100644
index 0000000..507cd4f
--- /dev/null
+++ b/arch/mips/loongson/common/cs5536/cs5536_isa.c
@@ -0,0 +1,376 @@
+/*
+ * the ISA Virtual Support Module of AMD CS5536
+ *
+ * Copyright (C) 2007 Lemote, Inc. & Institute of Computing Technology
+ * Author : jlliu, liujl@...ote.com
+ *
+ * Copyright (C) 2009 Lemote, Inc. & Institute of Computing Technology
+ * Author: Wu Zhangjin, wuzj@...ote.com
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ */
+
+#include <cs5536/cs5536.h>
+#include <cs5536/cs5536_pci.h>
+
+/* common variables for PCI_ISA_READ/WRITE_BAR */
+static const u32 divil_msr_reg[6] = {
+ DIVIL_MSR_REG(DIVIL_LBAR_SMB), DIVIL_MSR_REG(DIVIL_LBAR_GPIO),
+ DIVIL_MSR_REG(DIVIL_LBAR_MFGPT), DIVIL_MSR_REG(DIVIL_LBAR_IRQ),
+ DIVIL_MSR_REG(DIVIL_LBAR_PMS), DIVIL_MSR_REG(DIVIL_LBAR_ACPI),
+};
+
+static const u32 soft_bar_flag[6] = {
+ SOFT_BAR_SMB_FLAG, SOFT_BAR_GPIO_FLAG, SOFT_BAR_MFGPT_FLAG,
+ SOFT_BAR_IRQ_FLAG, SOFT_BAR_PMS_FLAG, SOFT_BAR_ACPI_FLAG,
+};
+
+static const u32 sb_msr_reg[6] = {
+ SB_MSR_REG(SB_R0), SB_MSR_REG(SB_R1), SB_MSR_REG(SB_R2),
+ SB_MSR_REG(SB_R3), SB_MSR_REG(SB_R4), SB_MSR_REG(SB_R5),
+};
+
+static const u32 bar_space_range[6] = {
+ CS5536_SMB_RANGE, CS5536_GPIO_RANGE, CS5536_MFGPT_RANGE,
+ CS5536_IRQ_RANGE, CS5536_PMS_RANGE, CS5536_ACPI_RANGE,
+};
+
+static const int bar_space_len[6] = {
+ CS5536_SMB_LENGTH, CS5536_GPIO_LENGTH, CS5536_MFGPT_LENGTH,
+ CS5536_IRQ_LENGTH, CS5536_PMS_LENGTH, CS5536_ACPI_LENGTH,
+};
+
+/*
+ * enable the divil module bar space.
+ *
+ * For all the DIVIL module LBAR, you should control the DIVIL LBAR reg
+ * and the RCONFx(0~5) reg to use the modules.
+ */
+static void divil_lbar_enable(void)
+{
+ u32 hi, lo;
+ int offset;
+
+ /*
+ * The DIVIL IRQ is not used yet. and make the RCONF0 reserved.
+ */
+
+ for (offset = DIVIL_LBAR_SMB; offset <= DIVIL_LBAR_PMS; offset++) {
+ _rdmsr(DIVIL_MSR_REG(offset), &hi, &lo);
+ hi |= 0x01;
+ _wrmsr(DIVIL_MSR_REG(DIVIL_LBAR_SMB), hi, lo);
+ }
+ return;
+}
+
+/*
+ * disable the divil module bar space.
+ */
+static void divil_lbar_disable(void)
+{
+ u32 hi, lo;
+ int offset;
+
+ for (offset = DIVIL_LBAR_SMB; offset <= DIVIL_LBAR_PMS; offset++) {
+ _rdmsr(DIVIL_MSR_REG(offset), &hi, &lo);
+ hi &= ~0x01;
+ _wrmsr(DIVIL_MSR_REG(DIVIL_LBAR_SMB), hi, lo);
+ }
+ return;
+}
+
+/*
+ * BAR write: write value to the n BAR
+ */
+
+void pci_isa_write_bar(int n, u32 value)
+{
+ u32 hi = 0, lo = value;
+
+ if (value == PCI_BAR_RANGE_MASK) {
+ _rdmsr(GLCP_MSR_REG(GLCP_SOFT_COM), &hi, &lo);
+ lo |= soft_bar_flag[n];
+ _wrmsr(GLCP_MSR_REG(GLCP_SOFT_COM), hi, lo);
+ } else if (value & 0x01) {
+ /* NATIVE reg */
+ hi = 0x0000f001;
+ lo &= bar_space_range[n];
+ _wrmsr(divil_msr_reg[n], hi, lo);
+
+ /* RCONFx is 4bytes in units for I/O space */
+ hi = ((value & 0x000ffffc) << 12) |
+ ((bar_space_len[n] - 4) << 12) | 0x01;
+ lo = ((value & 0x000ffffc) << 12) | 0x01;
+ _wrmsr(sb_msr_reg[n], hi, lo);
+ }
+
+ return;
+}
+
+/*
+ * BAR read: read the n BAR
+ */
+
+u32 pci_isa_read_bar(int n)
+{
+ u32 conf_data = 0;
+ u32 hi, lo;
+
+ _rdmsr(GLCP_MSR_REG(GLCP_SOFT_COM), &hi, &lo);
+ if (lo & soft_bar_flag[n]) {
+ conf_data = bar_space_range[n] | PCI_BASE_ADDRESS_SPACE_IO;
+ lo &= ~soft_bar_flag[n];
+ _wrmsr(GLCP_MSR_REG(GLCP_SOFT_COM), hi, lo);
+ } else {
+ _rdmsr(divil_msr_reg[n], &hi, &lo);
+ conf_data = lo & bar_space_range[n];
+ conf_data |= 0x01;
+ conf_data &= ~0x02;
+ }
+ return conf_data;
+}
+
+/*
+ * isa_write : isa write transfering.
+ * WE assume that the ISA is not the BUS MASTER.!!!
+ */
+/* FAST BACK TO BACK '1' for BUS MASTER '0' for BUS SALVE */
+/* COMMAND :
+ * bit0 : IO SPACE ENABLE
+ * bit1 : MEMORY SPACE ENABLE(ignore)
+ * bit2 : BUS MASTER ENABLE(ignore)
+ * bit3 : SPECIAL CYCLE(ignore)? default is ignored.
+ * bit4 : MEMORY WRITE and INVALIDATE(ignore)
+ * bit5 : VGA PALETTE(ignore)
+ * bit6 : PARITY ERROR(ignore)? : default is ignored.
+ * bit7 : WAIT CYCLE CONTROL(ignore)
+ * bit8 : SYSTEM ERROR(ignore)
+ * bit9 : FAST BACK TO BACK(ignore)
+ * bit10-bit15 : RESERVED
+ * STATUS :
+ * bit0-bit3 : RESERVED
+ * bit4 : CAPABILITY LIST(ignore)
+ * bit5 : 66MHZ CAPABLE
+ * bit6 : RESERVED
+ * bit7 : FAST BACK TO BACK(ignore)
+ * bit8 : DATA PARITY ERROR DETECED(ignore)
+ * bit9-bit10 : DEVSEL TIMING(ALL MEDIUM)
+ * bit11: SIGNALED TARGET ABORT
+ * bit12: RECEIVED TARGET ABORT
+ * bit13: RECEIVED MASTER ABORT
+ * bit14: SIGNALED SYSTEM ERROR
+ * bit15: DETECTED PARITY ERROR
+ */
+
+void pci_isa_write_reg(int reg, u32 value)
+{
+ u32 hi = 0, lo = value;
+ u32 temp;
+
+ switch (reg) {
+ case PCI_COMMAND:
+ if (value & PCI_COMMAND_IO)
+ divil_lbar_enable();
+ else
+ divil_lbar_disable();
+ break;
+ case PCI_STATUS:
+ _rdmsr(SB_MSR_REG(SB_ERROR), &hi, &lo);
+ temp = lo & 0x0000ffff;
+ if ((value & PCI_STATUS_SIG_TARGET_ABORT) &&
+ (lo & SB_TAS_ERR_EN))
+ temp |= SB_TAS_ERR_FLAG;
+
+ if ((value & PCI_STATUS_REC_TARGET_ABORT) &&
+ (lo & SB_TAR_ERR_EN))
+ temp |= SB_TAR_ERR_FLAG;
+
+ if ((value & PCI_STATUS_REC_MASTER_ABORT)
+ && (lo & SB_MAR_ERR_EN))
+ temp |= SB_MAR_ERR_FLAG;
+
+ if ((value & PCI_STATUS_DETECTED_PARITY)
+ && (lo & SB_PARE_ERR_EN))
+ temp |= SB_PARE_ERR_FLAG;
+
+ lo = temp;
+ _wrmsr(SB_MSR_REG(SB_ERROR), hi, lo);
+ break;
+ case PCI_CACHE_LINE_SIZE:
+ value &= 0x0000ff00;
+ _rdmsr(SB_MSR_REG(SB_CTRL), &hi, &lo);
+ hi &= 0xffffff00;
+ hi |= (value >> 8);
+ _wrmsr(SB_MSR_REG(SB_CTRL), hi, lo);
+ break;
+ case PCI_BAR0_REG:
+ pci_isa_write_bar(0, value);
+ break;
+ case PCI_BAR1_REG:
+ pci_isa_write_bar(1, value);
+ break;
+ case PCI_BAR2_REG:
+ pci_isa_write_bar(2, value);
+ break;
+ case PCI_BAR3_REG:
+ pci_isa_write_bar(3, value);
+ break;
+ case PCI_BAR4_REG:
+ pci_isa_write_bar(4, value);
+ break;
+ case PCI_BAR5_REG:
+ pci_isa_write_bar(5, value);
+ break;
+ case PCI_UART1_INT_REG:
+ _rdmsr(DIVIL_MSR_REG(PIC_YSEL_HIGH), &hi, &lo);
+ /* disable uart1 interrupt in PIC */
+ lo &= ~(0xf << 24);
+ if (value) /* enable uart1 interrupt in PIC */
+ lo |= (CS5536_UART1_INTR << 24);
+ _wrmsr(DIVIL_MSR_REG(PIC_YSEL_HIGH), hi, lo);
+ break;
+ case PCI_UART2_INT_REG:
+ _rdmsr(DIVIL_MSR_REG(PIC_YSEL_HIGH), &hi, &lo);
+ /* disable uart2 interrupt in PIC */
+ lo &= ~(0xf << 28);
+ if (value) /* enable uart2 interrupt in PIC */
+ lo |= (CS5536_UART2_INTR << 28);
+ _wrmsr(DIVIL_MSR_REG(PIC_YSEL_HIGH), hi, lo);
+ break;
+ case PCI_ISA_FIXUP_REG:
+ if (value) {
+ /* enable the TARGET ABORT/MASTER ABORT etc. */
+ _rdmsr(SB_MSR_REG(SB_ERROR), &hi, &lo);
+ lo |= 0x00000063;
+ _wrmsr(SB_MSR_REG(SB_ERROR), hi, lo);
+ }
+
+ default:
+ /* ALL OTHER PCI CONFIG SPACE HEADER IS NOT IMPLEMENTED. */
+ break;
+ }
+
+ return;
+}
+
+/*
+ * isa_read : isa read transfering.
+ * we assume that the ISA is not the BUS MASTER.
+ */
+
+ /* COMMAND :
+ * bit0 : IO SPACE ENABLE
+ * bit1 : MEMORY SPACE ENABLE(ignore)
+ * bit2 : BUS MASTER ENABLE(ignore)
+ * bit3 : SPECIAL CYCLE(ignore)? default is ignored.
+ * bit4 : MEMORY WRITE and INVALIDATE(ignore)
+ * bit5 : VGA PALETTE(ignore)
+ * bit6 : PARITY ERROR(ignore)? : default is ignored.
+ * bit7 : WAIT CYCLE CONTROL(ignore)
+ * bit8 : SYSTEM ERROR(ignore)
+ * bit9 : FAST BACK TO BACK(ignore)
+ * bit10-bit15 : RESERVED
+ * STATUS :
+ * bit0-bit3 : RESERVED
+ * bit4 : CAPABILITY LIST(ignore)
+ * bit5 : 66MHZ CAPABLE
+ * bit6 : RESERVED
+ * bit7 : FAST BACK TO BACK(ignore)
+ * bit8 : DATA PARITY ERROR DETECED(ignore)?
+ * bit9-bit10 : DEVSEL TIMING(ALL MEDIUM)
+ * bit11: SIGNALED TARGET ABORT
+ * bit12: RECEIVED TARGET ABORT
+ * bit13: RECEIVED MASTER ABORT
+ * bit14: SIGNALED SYSTEM ERROR
+ * bit15: DETECTED PARITY ERROR(?)
+ */
+
+u32 pci_isa_read_reg(int reg)
+{
+ u32 conf_data = 0;
+ u32 hi, lo;
+
+ switch (reg) {
+ case PCI_VENDOR_ID:
+ conf_data =
+ CFG_PCI_VENDOR_ID(CS5536_ISA_DEVICE_ID, CS5536_VENDOR_ID);
+ break;
+ case PCI_COMMAND:
+ /* we just check the first LBAR for the IO enable bit, */
+ /* maybe we should changed later. */
+ _rdmsr(DIVIL_MSR_REG(DIVIL_LBAR_SMB), &hi, &lo);
+ if (hi & 0x01)
+ conf_data |= PCI_COMMAND_IO;
+ break;
+ case PCI_STATUS:
+ conf_data |= PCI_STATUS_66MHZ;
+ conf_data |= PCI_STATUS_DEVSEL_MEDIUM;
+ conf_data |= PCI_STATUS_FAST_BACK;
+
+ _rdmsr(SB_MSR_REG(SB_ERROR), &hi, &lo);
+ if (lo & SB_TAS_ERR_FLAG)
+ conf_data |= PCI_STATUS_SIG_TARGET_ABORT;
+ if (lo & SB_TAR_ERR_FLAG)
+ conf_data |= PCI_STATUS_REC_TARGET_ABORT;
+ if (lo & SB_MAR_ERR_FLAG)
+ conf_data |= PCI_STATUS_REC_MASTER_ABORT;
+ if (lo & SB_PARE_ERR_FLAG)
+ conf_data |= PCI_STATUS_DETECTED_PARITY;
+ break;
+ case PCI_CLASS_REVISION:
+ _rdmsr(GLCP_MSR_REG(GLCP_CHIP_REV_ID), &hi, &lo);
+ conf_data = lo & 0x000000ff;
+ conf_data |= (CS5536_ISA_CLASS_CODE << 8);
+ break;
+ case PCI_CACHE_LINE_SIZE:
+ _rdmsr(SB_MSR_REG(SB_CTRL), &hi, &lo);
+ hi &= 0x000000f8;
+ conf_data = CFG_PCI_CACHE_LINE_SIZE(PCI_BRIDGE_HEADER_TYPE, hi);
+ break;
+ /*
+ * we only use the LBAR of DIVIL, no RCONF used.
+ * all of them are IO space.
+ */
+ case PCI_BAR0_REG:
+ return pci_isa_read_bar(0);
+ break;
+ case PCI_BAR1_REG:
+ return pci_isa_read_bar(1);
+ break;
+ case PCI_BAR2_REG:
+ return pci_isa_read_bar(2);
+ break;
+ case PCI_BAR3_REG:
+ break;
+ case PCI_BAR4_REG:
+ return pci_isa_read_bar(4);
+ break;
+ case PCI_BAR5_REG:
+ return pci_isa_read_bar(5);
+ break;
+ case PCI_CARDBUS_CIS:
+ conf_data = PCI_CARDBUS_CIS_POINTER;
+ break;
+ case PCI_SUBSYSTEM_VENDOR_ID:
+ conf_data =
+ CFG_PCI_VENDOR_ID(CS5536_ISA_SUB_ID, CS5536_SUB_VENDOR_ID);
+ break;
+ case PCI_ROM_ADDRESS:
+ conf_data = PCI_EXPANSION_ROM_BAR;
+ break;
+ case PCI_CAPABILITY_LIST:
+ conf_data = PCI_CAPLIST_POINTER;
+ break;
+ case PCI_INTERRUPT_LINE:
+ /* no interrupt used here */
+ conf_data = CFG_PCI_INTERRUPT_LINE(0x00, 0x00);
+ break;
+ default:
+ break;
+ }
+
+ return conf_data;
+}
diff --git a/arch/mips/loongson/common/cs5536/cs5536_ohci.c b/arch/mips/loongson/common/cs5536/cs5536_ohci.c
new file mode 100644
index 0000000..71146b3
--- /dev/null
+++ b/arch/mips/loongson/common/cs5536/cs5536_ohci.c
@@ -0,0 +1,167 @@
+/*
+ * the OHCI Virtual Support Module of AMD CS5536
+ *
+ * Copyright (C) 2007 Lemote, Inc. & Institute of Computing Technology
+ * Author : jlliu, liujl@...ote.com
+ *
+ * Copyright (C) 2009 Lemote, Inc. & Institute of Computing Technology
+ * Author: Wu Zhangjin, wuzj@...ote.com
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ */
+
+#include <cs5536/cs5536.h>
+#include <cs5536/cs5536_pci.h>
+
+/*
+ * ohci_write : ohci write transfering.
+ */
+void pci_ohci_write_reg(int reg, u32 value)
+{
+ u32 hi = 0, lo = value;
+
+ switch (reg) {
+ case PCI_COMMAND:
+ _rdmsr(USB_MSR_REG(USB_OHCI), &hi, &lo);
+ if (value & PCI_COMMAND_MASTER)
+ hi |= PCI_COMMAND_MASTER;
+ else
+ hi &= ~PCI_COMMAND_MASTER;
+
+ if (value & PCI_COMMAND_MEMORY)
+ hi |= PCI_COMMAND_MEMORY;
+ else
+ hi &= ~PCI_COMMAND_MEMORY;
+ _wrmsr(USB_MSR_REG(USB_OHCI), hi, lo);
+ break;
+ case PCI_STATUS:
+ if (value & PCI_STATUS_PARITY) {
+ _rdmsr(SB_MSR_REG(SB_ERROR), &hi, &lo);
+ if (lo & SB_PARE_ERR_FLAG) {
+ lo = (lo & 0x0000ffff) | SB_PARE_ERR_FLAG;
+ _wrmsr(SB_MSR_REG(SB_ERROR), hi, lo);
+ }
+ }
+ break;
+ case PCI_BAR0_REG:
+ if (value == PCI_BAR_RANGE_MASK) {
+ _rdmsr(GLCP_MSR_REG(GLCP_SOFT_COM), &hi, &lo);
+ lo |= SOFT_BAR_OHCI_FLAG;
+ _wrmsr(GLCP_MSR_REG(GLCP_SOFT_COM), hi, lo);
+ } else if ((value & 0x01) == 0x00) {
+ _wrmsr(USB_MSR_REG(USB_OHCI), hi, lo);
+
+ value &= 0xfffffff0;
+ hi = 0x40000000 | ((value & 0xff000000) >> 24);
+ lo = 0x000fffff | ((value & 0x00fff000) << 8);
+ _wrmsr(GLIU_MSR_REG(GLIU_P2D_BM3), hi, lo);
+ }
+ break;
+ case PCI_INTERRUPT_LINE:
+ value &= 0x000000ff;
+ break;
+ case PCI_OHCI_PM_REG:
+ break;
+ case PCI_OHCI_INT_REG:
+ _rdmsr(DIVIL_MSR_REG(PIC_YSEL_LOW), &hi, &lo);
+ lo &= ~(0xf << PIC_YSEL_LOW_USB_SHIFT);
+ if (value) /* enable all the usb interrupt in PIC */
+ lo |= (CS5536_USB_INTR << PIC_YSEL_LOW_USB_SHIFT);
+ _wrmsr(DIVIL_MSR_REG(PIC_YSEL_LOW), hi, lo);
+ break;
+ default:
+ break;
+ }
+
+ return;
+}
+
+/*
+ * ohci_read : ohci read transfering.
+ */
+u32 pci_ohci_read_reg(int reg)
+{
+ u32 conf_data = 0;
+ u32 hi, lo;
+
+ switch (reg) {
+ case PCI_VENDOR_ID:
+ conf_data =
+ CFG_PCI_VENDOR_ID(CS5536_OHCI_DEVICE_ID, CS5536_VENDOR_ID);
+ break;
+ case PCI_COMMAND:
+ _rdmsr(USB_MSR_REG(USB_OHCI), &hi, &lo);
+ if (hi & PCI_COMMAND_MASTER)
+ conf_data |= PCI_COMMAND_MASTER;
+ if (hi & PCI_COMMAND_MEMORY)
+ conf_data |= PCI_COMMAND_MEMORY;
+ break;
+ case PCI_STATUS:
+ conf_data |= PCI_STATUS_66MHZ;
+ conf_data |= PCI_STATUS_FAST_BACK;
+ _rdmsr(SB_MSR_REG(SB_ERROR), &hi, &lo);
+ if (lo & SB_PARE_ERR_FLAG)
+ conf_data |= PCI_STATUS_PARITY;
+ conf_data |= PCI_STATUS_DEVSEL_MEDIUM;
+ break;
+ case PCI_CLASS_REVISION:
+ _rdmsr(USB_MSR_REG(USB_CAP), &hi, &lo);
+ conf_data = lo & 0x000000ff;
+ conf_data |= (CS5536_OHCI_CLASS_CODE << 8);
+ break;
+ case PCI_CACHE_LINE_SIZE:
+ conf_data =
+ CFG_PCI_CACHE_LINE_SIZE(PCI_NORMAL_HEADER_TYPE,
+ PCI_NORMAL_LATENCY_TIMER);
+ break;
+ case PCI_BAR0_REG:
+ _rdmsr(GLCP_MSR_REG(GLCP_SOFT_COM), &hi, &lo);
+ if (lo & SOFT_BAR_OHCI_FLAG) {
+ conf_data = CS5536_OHCI_RANGE |
+ PCI_BASE_ADDRESS_SPACE_MEMORY;
+ lo &= ~SOFT_BAR_OHCI_FLAG;
+ _wrmsr(GLCP_MSR_REG(GLCP_SOFT_COM), hi, lo);
+ } else {
+ _rdmsr(USB_MSR_REG(USB_OHCI), &hi, &lo);
+ conf_data = lo & 0xffffff00;
+ conf_data &= ~0x0000000f; /* 32bit mem */
+ }
+ break;
+ case PCI_BAR1_REG:
+ case PCI_BAR2_REG:
+ case PCI_BAR3_REG:
+ case PCI_BAR4_REG:
+ case PCI_BAR5_REG:
+ break;
+ case PCI_CARDBUS_CIS:
+ conf_data = PCI_CARDBUS_CIS_POINTER;
+ break;
+ case PCI_SUBSYSTEM_VENDOR_ID:
+ conf_data =
+ CFG_PCI_VENDOR_ID(CS5536_OHCI_SUB_ID, CS5536_SUB_VENDOR_ID);
+ break;
+ case PCI_ROM_ADDRESS:
+ conf_data = PCI_EXPANSION_ROM_BAR;
+ break;
+ case PCI_CAPABILITY_LIST:
+ conf_data = PCI_CAPLIST_USB_POINTER;
+ break;
+ case PCI_INTERRUPT_LINE:
+ conf_data = CFG_PCI_INTERRUPT_LINE(PCI_DEFAULT_PIN, CS5536_USB_INTR);
+ break;
+ case PCI_OHCI_PM_REG:
+ break;
+ case PCI_OHCI_INT_REG:
+ _rdmsr(DIVIL_MSR_REG(PIC_YSEL_LOW), &hi, &lo);
+ if ((lo & 0x00000f00) == CS5536_USB_INTR)
+ conf_data = 1;
+ break;
+ default:
+ break;
+ }
+
+ return conf_data;
+}
diff --git a/arch/mips/loongson/common/cs5536/cs5536_otg.c b/arch/mips/loongson/common/cs5536/cs5536_otg.c
new file mode 100644
index 0000000..363aa88
--- /dev/null
+++ b/arch/mips/loongson/common/cs5536/cs5536_otg.c
@@ -0,0 +1,137 @@
+/*
+ * the OTG Virtual Support Module of AMD CS5536
+ *
+ * Copyright (C) 2007 Lemote, Inc. & Institute of Computing Technology
+ * Author : jlliu, liujl@...ote.com
+ *
+ * Copyright (C) 2009 Lemote, Inc. & Institute of Computing Technology
+ * Author: Wu Zhangjin, wuzj@...ote.com
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ */
+
+#include <cs5536/cs5536.h>
+#include <cs5536/cs5536_pci.h>
+
+void pci_otg_write_reg(int reg, u32 value)
+{
+ u32 hi = 0, lo = value;
+
+ switch (reg) {
+ case PCI_COMMAND:
+ _rdmsr(USB_MSR_REG(USB_OTG), &hi, &lo);
+ if (value & PCI_COMMAND_MEMORY)
+ hi |= PCI_COMMAND_MEMORY;
+ else
+ hi &= ~PCI_COMMAND_MEMORY;
+ _wrmsr(USB_MSR_REG(USB_OTG), hi, lo);
+ break;
+ case PCI_STATUS:
+ if (value & PCI_STATUS_PARITY) {
+ _rdmsr(SB_MSR_REG(SB_ERROR), &hi, &lo);
+ if (lo & SB_PARE_ERR_FLAG) {
+ lo = (lo & 0x0000ffff) | SB_PARE_ERR_FLAG;
+ _wrmsr(SB_MSR_REG(SB_ERROR), hi, lo);
+ }
+ }
+ break;
+ case PCI_BAR0_REG:
+ if (value == PCI_BAR_RANGE_MASK) {
+ _rdmsr(GLCP_MSR_REG(GLCP_SOFT_COM), &hi, &lo);
+ lo |= SOFT_BAR_OTG_FLAG;
+ _wrmsr(GLCP_MSR_REG(GLCP_SOFT_COM), hi, lo);
+ } else if ((value & 0x01) == 0x00) {
+ _rdmsr(USB_MSR_REG(USB_OTG), &hi, &lo);
+ lo &= 0xffffff00;
+ _wrmsr(USB_MSR_REG(USB_OTG), hi, lo);
+
+ value &= 0xfffffff0;
+ hi = 0x40000000 | ((value & 0xff000000) >> 24);
+ lo = 0x000fffff | ((value & 0x00fff000) << 8);
+ _wrmsr(GLIU_MSR_REG(GLIU_P2D_BM1), hi, lo);
+ }
+ break;
+ default:
+ break;
+ }
+
+ return;
+}
+
+u32 pci_otg_read_reg(int reg)
+{
+ u32 conf_data = 0;
+ u32 hi, lo;
+
+ switch (reg) {
+ case PCI_VENDOR_ID:
+ conf_data =
+ CFG_PCI_VENDOR_ID(CS5536_OTG_DEVICE_ID, CS5536_VENDOR_ID);
+ break;
+ case PCI_COMMAND:
+ _rdmsr(USB_MSR_REG(USB_OTG), &hi, &lo);
+ if (hi & PCI_COMMAND_MEMORY)
+ conf_data |= PCI_COMMAND_MEMORY;
+ break;
+ case PCI_STATUS:
+ conf_data |= PCI_STATUS_66MHZ;
+ conf_data |= PCI_STATUS_FAST_BACK;
+ _rdmsr(SB_MSR_REG(SB_ERROR), &hi, &lo);
+ if (lo & SB_PARE_ERR_FLAG)
+ conf_data |= PCI_STATUS_PARITY;
+ conf_data |= PCI_STATUS_DEVSEL_MEDIUM;
+ break;
+ case PCI_CLASS_REVISION:
+ _rdmsr(USB_MSR_REG(USB_CAP), &hi, &lo);
+ conf_data = lo & 0x000000ff;
+ conf_data |= (CS5536_OTG_CLASS_CODE << 8);
+ break;
+ case PCI_CACHE_LINE_SIZE:
+ conf_data =
+ CFG_PCI_CACHE_LINE_SIZE(PCI_NORMAL_HEADER_TYPE,
+ PCI_NORMAL_LATENCY_TIMER);
+ break;
+ case PCI_BAR0_REG:
+ _rdmsr(GLCP_MSR_REG(GLCP_SOFT_COM), &hi, &lo);
+ if (lo & SOFT_BAR_OTG_FLAG) {
+ conf_data = CS5536_OTG_RANGE |
+ PCI_BASE_ADDRESS_SPACE_MEMORY;
+ lo &= ~SOFT_BAR_OTG_FLAG;
+ _wrmsr(GLCP_MSR_REG(GLCP_SOFT_COM), hi, lo);
+ } else {
+ _rdmsr(USB_MSR_REG(USB_OTG), &hi, &lo);
+ conf_data = lo & 0xffffff00;
+ conf_data &= ~0x0000000f;
+ }
+ break;
+ case PCI_BAR1_REG:
+ case PCI_BAR2_REG:
+ case PCI_BAR3_REG:
+ case PCI_BAR4_REG:
+ case PCI_BAR5_REG:
+ break;
+ case PCI_CARDBUS_CIS:
+ conf_data = PCI_CARDBUS_CIS_POINTER;
+ break;
+ case PCI_SUBSYSTEM_VENDOR_ID:
+ conf_data =
+ CFG_PCI_VENDOR_ID(CS5536_OTG_SUB_ID, CS5536_SUB_VENDOR_ID);
+ break;
+ case PCI_ROM_ADDRESS:
+ conf_data = PCI_EXPANSION_ROM_BAR;
+ break;
+ case PCI_CAPABILITY_LIST:
+ conf_data = PCI_CAPLIST_USB_POINTER;
+ break;
+ case PCI_INTERRUPT_LINE:
+ conf_data = CFG_PCI_INTERRUPT_LINE(PCI_DEFAULT_PIN, CS5536_USB_INTR);
+ break;
+ default:
+ break;
+ }
+
+ return conf_data;
+}
diff --git a/arch/mips/loongson/common/cs5536/cs5536_pci.c b/arch/mips/loongson/common/cs5536/cs5536_pci.c
new file mode 100644
index 0000000..977d77e
--- /dev/null
+++ b/arch/mips/loongson/common/cs5536/cs5536_pci.c
@@ -0,0 +1,126 @@
+/*
+ * read/write operation to the PCI config space of CS5536
+ *
+ * Copyright (C) 2007 Lemote, Inc. & Institute of Computing Technology
+ * Author : jlliu, liujl@...ote.com
+ *
+ * Copyright (C) 2009 Lemote, Inc. & Institute of Computing Technology
+ * Author: Wu Zhangjin, wuzj@...ote.com
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * the Virtual Support Module(VSM) for virtulizing the PCI
+ * configure space are defined in cs5536_modulename.c respectively,
+ * so you can select modules which have been used in his/her board.
+ * to archive this, you just need to add a "select CS5536_[MODULE]"
+ * option in your board in arch/mips/loongson/Kconfig
+ *
+ * after this virtulizing, user can access the PCI configure space
+ * directly as a normal multi-function PCI device which following
+ * the PCI-2.2 spec.
+ */
+
+#include <linux/types.h>
+#include <cs5536/cs5536_vsm.h>
+
+enum {
+ CS5536_FUNC_START = -1,
+ CS5536_ISA_FUNC,
+ CS5536_FLASH_FUNC,
+ CS5536_IDE_FUNC,
+ CS5536_ACC_FUNC,
+ CS5536_OHCI_FUNC,
+ CS5536_EHCI_FUNC,
+ CS5536_UDC_FUNC,
+ CS5536_OTG_FUNC,
+ CS5536_FUNC_END,
+};
+
+/*
+ * write to PCI config space and transfer it to MSR write.
+ */
+void cs5536_pci_conf_write4(int function, int reg, u32 value)
+{
+ if ((function <= CS5536_FUNC_START) || (function >= CS5536_FUNC_END))
+ return;
+ if ((reg < 0) || (reg > 0x100) || ((reg & 0x03) != 0))
+ return;
+
+ switch (function) {
+ case CS5536_ISA_FUNC:
+ pci_isa_write_reg(reg, value);
+ break;
+ case CS5536_FLASH_FUNC:
+ pci_flash_write_reg(reg, value);
+ break;
+ case CS5536_IDE_FUNC:
+ pci_ide_write_reg(reg, value);
+ break;
+ case CS5536_ACC_FUNC:
+ pci_acc_write_reg(reg, value);
+ break;
+ case CS5536_OHCI_FUNC:
+ pci_ohci_write_reg(reg, value);
+ break;
+ case CS5536_EHCI_FUNC:
+ pci_ehci_write_reg(reg, value);
+ break;
+ case CS5536_UDC_FUNC:
+ pci_udc_write_reg(reg, value);
+ break;
+ case CS5536_OTG_FUNC:
+ pci_otg_write_reg(reg, value);
+ break;
+ default:
+ break;
+ }
+ return;
+}
+
+/*
+ * read PCI config space and transfer it to MSR access.
+ */
+u32 cs5536_pci_conf_read4(int function, int reg)
+{
+ u32 data = 0;
+
+ if ((function <= CS5536_FUNC_START) || (function >= CS5536_FUNC_END))
+ return 0;
+ if ((reg < 0) || ((reg & 0x03) != 0))
+ return 0;
+ if (reg > 0x100)
+ return 0xffffffff;
+
+ switch (function) {
+ case CS5536_ISA_FUNC:
+ data = pci_isa_read_reg(reg);
+ break;
+ case CS5536_FLASH_FUNC:
+ data = pci_flash_read_reg(reg);
+ break;
+ case CS5536_IDE_FUNC:
+ data = pci_ide_read_reg(reg);
+ break;
+ case CS5536_ACC_FUNC:
+ data = pci_acc_read_reg(reg);
+ break;
+ case CS5536_OHCI_FUNC:
+ data = pci_ohci_read_reg(reg);
+ break;
+ case CS5536_EHCI_FUNC:
+ data = pci_ehci_read_reg(reg);
+ break;
+ case CS5536_UDC_FUNC:
+ data = pci_udc_read_reg(reg);
+ break;
+ case CS5536_OTG_FUNC:
+ data = pci_otg_read_reg(reg);
+ break;
+ default:
+ break;
+ }
+ return data;
+}
diff --git a/arch/mips/loongson/common/cs5536/cs5536_udc.c b/arch/mips/loongson/common/cs5536/cs5536_udc.c
new file mode 100644
index 0000000..2050aac
--- /dev/null
+++ b/arch/mips/loongson/common/cs5536/cs5536_udc.c
@@ -0,0 +1,142 @@
+/*
+ * the UDC Virtual Support Module of AMD CS5536
+ *
+ * Copyright (C) 2007 Lemote, Inc. & Institute of Computing Technology
+ * Author : jlliu, liujl@...ote.com
+ *
+ * Copyright (C) 2009 Lemote, Inc. & Institute of Computing Technology
+ * Author: Wu Zhangjin, wuzj@...ote.com
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ */
+
+#include <cs5536/cs5536.h>
+#include <cs5536/cs5536_pci.h>
+
+void pci_udc_write_reg(int reg, u32 value)
+{
+ u32 hi = 0, lo = value;
+
+ switch (reg) {
+ case PCI_COMMAND:
+ _rdmsr(USB_MSR_REG(USB_UDC), &hi, &lo);
+ if (value & PCI_COMMAND_MASTER)
+ hi |= PCI_COMMAND_MASTER;
+ else
+ hi &= ~PCI_COMMAND_MASTER;
+
+ if (value & PCI_COMMAND_MEMORY)
+ hi |= PCI_COMMAND_MEMORY;
+ else
+ hi &= ~PCI_COMMAND_MEMORY;
+ _wrmsr(USB_MSR_REG(USB_UDC), hi, lo);
+ break;
+ case PCI_STATUS:
+ if (value & PCI_STATUS_PARITY) {
+ _rdmsr(SB_MSR_REG(SB_ERROR), &hi, &lo);
+ if (lo & SB_PARE_ERR_FLAG) {
+ lo = (lo & 0x0000ffff) | SB_PARE_ERR_FLAG;
+ _wrmsr(SB_MSR_REG(SB_ERROR), hi, lo);
+ }
+ }
+ break;
+ case PCI_BAR0_REG:
+ if (value == PCI_BAR_RANGE_MASK) {
+ _rdmsr(GLCP_MSR_REG(GLCP_SOFT_COM), &hi, &lo);
+ lo |= SOFT_BAR_UDC_FLAG;
+ _wrmsr(GLCP_MSR_REG(GLCP_SOFT_COM), hi, lo);
+ } else if ((value & 0x01) == 0x00) {
+ _wrmsr(USB_MSR_REG(USB_UDC), hi, lo);
+
+ value &= 0xfffffff0;
+ hi = 0x40000000 | ((value & 0xff000000) >> 24);
+ lo = 0x000fffff | ((value & 0x00fff000) << 8);
+ _wrmsr(GLIU_MSR_REG(GLIU_P2D_BM0), hi, lo);
+ }
+ break;
+ default:
+ break;
+ }
+
+ return;
+}
+
+u32 pci_udc_read_reg(int reg)
+{
+ u32 conf_data = 0;
+ u32 hi, lo;
+
+ switch (reg) {
+ case PCI_VENDOR_ID:
+ conf_data =
+ CFG_PCI_VENDOR_ID(CS5536_UDC_DEVICE_ID, CS5536_VENDOR_ID);
+ break;
+ case PCI_COMMAND:
+ _rdmsr(USB_MSR_REG(USB_UDC), &hi, &lo);
+ if (hi & PCI_COMMAND_MASTER)
+ conf_data |= PCI_COMMAND_MASTER;
+ if (hi & PCI_COMMAND_MEMORY)
+ conf_data |= PCI_COMMAND_MEMORY;
+ break;
+ case PCI_STATUS:
+ conf_data |= PCI_STATUS_66MHZ;
+ conf_data |= PCI_STATUS_FAST_BACK;
+ _rdmsr(SB_MSR_REG(SB_ERROR), &hi, &lo);
+ if (lo & SB_PARE_ERR_FLAG)
+ conf_data |= PCI_STATUS_PARITY;
+ conf_data |= PCI_STATUS_DEVSEL_MEDIUM;
+ break;
+ case PCI_CLASS_REVISION:
+ _rdmsr(USB_MSR_REG(USB_CAP), &hi, &lo);
+ conf_data = lo & 0x000000ff;
+ conf_data |= (CS5536_UDC_CLASS_CODE << 8);
+ break;
+ case PCI_CACHE_LINE_SIZE:
+ conf_data =
+ CFG_PCI_CACHE_LINE_SIZE(PCI_NORMAL_HEADER_TYPE,
+ PCI_NORMAL_LATENCY_TIMER);
+ break;
+ case PCI_BAR0_REG:
+ _rdmsr(GLCP_MSR_REG(GLCP_SOFT_COM), &hi, &lo);
+ if (lo & SOFT_BAR_UDC_FLAG) {
+ conf_data = CS5536_UDC_RANGE |
+ PCI_BASE_ADDRESS_SPACE_MEMORY;
+ lo &= ~SOFT_BAR_UDC_FLAG;
+ _wrmsr(GLCP_MSR_REG(GLCP_SOFT_COM), hi, lo);
+ } else {
+ _rdmsr(USB_MSR_REG(USB_UDC), &hi, &lo);
+ conf_data = lo & 0xfffff000;
+ conf_data &= ~0x0000000f; /* 32bit mem */
+ }
+ break;
+ case PCI_BAR1_REG:
+ case PCI_BAR2_REG:
+ case PCI_BAR3_REG:
+ case PCI_BAR4_REG:
+ case PCI_BAR5_REG:
+ break;
+ case PCI_CARDBUS_CIS:
+ conf_data = PCI_CARDBUS_CIS_POINTER;
+ break;
+ case PCI_SUBSYSTEM_VENDOR_ID:
+ conf_data =
+ CFG_PCI_VENDOR_ID(CS5536_UDC_SUB_ID, CS5536_SUB_VENDOR_ID);
+ break;
+ case PCI_ROM_ADDRESS:
+ conf_data = PCI_EXPANSION_ROM_BAR;
+ break;
+ case PCI_CAPABILITY_LIST:
+ conf_data = PCI_CAPLIST_USB_POINTER;
+ break;
+ case PCI_INTERRUPT_LINE:
+ conf_data = CFG_PCI_INTERRUPT_LINE(PCI_DEFAULT_PIN, CS5536_USB_INTR);
+ break;
+ default:
+ break;
+ }
+
+ return conf_data;
+}
diff --git a/arch/mips/loongson/fuloong-2f/Makefile b/arch/mips/loongson/fuloong-2f/Makefile
new file mode 100644
index 0000000..010b86c
--- /dev/null
+++ b/arch/mips/loongson/fuloong-2f/Makefile
@@ -0,0 +1,5 @@
+#
+# Makefile for fuloong-2f
+#
+
+obj-y += irq.o reset.o
diff --git a/arch/mips/loongson/fuloong-2f/irq.c b/arch/mips/loongson/fuloong-2f/irq.c
new file mode 100644
index 0000000..571aeb3
--- /dev/null
+++ b/arch/mips/loongson/fuloong-2f/irq.c
@@ -0,0 +1,53 @@
+/*
+ * Copyright (C) 2007 Lemote Inc. & Insititute of Computing Technology
+ * Author: Fuxin Zhang, zhangfx@...ote.com
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ */
+
+#include <linux/interrupt.h>
+
+#include <loongson.h>
+#include <machine.h>
+
+inline int mach_i8259_irq(void)
+{
+ int irq, isr, imr;
+
+ irq = -1;
+
+ if ((LOONGSON_INTISR & LOONGSON_INTEN) & LOONGSON_INT_BIT_INT0) {
+ imr = inb(0x21) | (inb(0xa1) << 8);
+ isr = inb(0x20) | (inb(0xa0) << 8);
+ isr &= ~0x4; /* irq2 for cascade */
+ isr &= ~imr;
+ irq = ffs(isr) - 1;
+ }
+
+ return irq;
+}
+
+inline void mach_irq_dispatch(unsigned int pending)
+{
+ if (pending & CAUSEF_IP7)
+ do_IRQ(LOONGSON_TIMER_IRQ);
+ else if (pending & CAUSEF_IP6) { /* North Bridge, Perf counter */
+ do_IRQ(LOONGSON_PERFCNT_IRQ);
+ bonito_irqdispatch();
+ } else if (pending & CAUSEF_IP3) /* CPU UART */
+ do_IRQ(LOONGSON_UART_IRQ);
+ else if (pending & CAUSEF_IP2) /* South Bridge */
+ i8259_irqdispatch();
+ else
+ spurious_interrupt();
+}
+
+void __init set_irq_trigger_mode(void)
+{
+ /* setup cs5536 as high level trigger */
+ LOONGSON_INTPOL = LOONGSON_INT_BIT_INT0 | LOONGSON_INT_BIT_INT1;
+ LOONGSON_INTEDGE &= ~(LOONGSON_INT_BIT_INT0 | LOONGSON_INT_BIT_INT1);
+}
diff --git a/arch/mips/loongson/fuloong-2f/reset.c b/arch/mips/loongson/fuloong-2f/reset.c
new file mode 100644
index 0000000..0261c17
--- /dev/null
+++ b/arch/mips/loongson/fuloong-2f/reset.c
@@ -0,0 +1,65 @@
+/* Board-specific reboot/shutdown routines
+ *
+ * Copyright (c) 2009 Philippe Vachon <philippe@...pig.ca>
+ *
+ * Copyright (C) 2009 Lemote Inc. & Insititute of Computing Technology
+ * Author: Wu Zhangjin, wuzj@...ote.com
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ */
+
+#include <linux/io.h>
+#include <linux/delay.h>
+#include <linux/types.h>
+
+#include <loongson.h>
+
+/* cs5536 is the south bridge used by fuloong2f mini PC */
+#include <cs5536/cs5536.h>
+
+void mach_prepare_reboot(void)
+{
+ /*
+ * reset cpu to full speed, this is needed when enabling cpu frequency
+ * scalling
+ */
+ LOONGSON_CHIPCFG0 |= 0x7;
+
+ /* send a reset signal to south bridge.
+ *
+ * NOTE: if enable "Power Management" in kernel, rtl8169 will not reset
+ * normally with this reset operation and it will not work in PMON, but
+ * you can type halt command and then reboot, seems the hardware reset
+ * logic not work normally.
+ */
+ {
+ u32 hi, lo;
+ _rdmsr(DIVIL_MSR_REG(DIVIL_SOFT_RESET), &hi, &lo);
+ lo |= 0x00000001;
+ _wrmsr(DIVIL_MSR_REG(DIVIL_SOFT_RESET), hi, lo);
+ }
+}
+
+void mach_prepare_shutdown(void)
+{
+ u32 hi, lo, val;
+ phys_addr_t gpio_base;
+
+ _rdmsr(DIVIL_MSR_REG(DIVIL_LBAR_GPIO), &hi, &lo);
+
+ gpio_base = mips_io_port_base | (lo & 0xff00);
+
+ /* make cs5536 gpio13 output enable */
+ val = (readl((u32 *) (gpio_base + GPIOL_OUT_EN)) & ~(1 << (16 + 13)))
+ | (1 << 13);
+ writel(val, (u32 *) (gpio_base + GPIOL_OUT_EN));
+ mmiowb();
+ /* make cs5536 gpio13 output low level voltage. */
+ val = (readl((u32 *) (gpio_base + GPIOL_OUT_VAL)) & ~(1 << (13)))
+ | (1 << (16 + 13));
+ writel(val, (u32 *) (gpio_base + GPIOL_OUT_VAL));
+ mmiowb();
+}
diff --git a/arch/mips/pci/Makefile b/arch/mips/pci/Makefile
index a0cc238..b96ed14 100644
--- a/arch/mips/pci/Makefile
+++ b/arch/mips/pci/Makefile
@@ -26,7 +26,8 @@ obj-$(CONFIG_MIPS_COBALT) += fixup-cobalt.o
obj-$(CONFIG_SOC_AU1500) += fixup-au1000.o ops-au1000.o
obj-$(CONFIG_SOC_AU1550) += fixup-au1000.o ops-au1000.o
obj-$(CONFIG_SOC_PNX8550) += fixup-pnx8550.o ops-pnx8550.o
-obj-$(CONFIG_LEMOTE_FULOONG2E) += fixup-fuloong2e.o ops-fuloong2e.o
+obj-$(CONFIG_LEMOTE_FULOONG2E) += fixup-fuloong2e.o ops-loongson2.o
+obj-$(CONFIG_LEMOTE_FULOONG2F) += fixup-fuloong2f.o ops-loongson2.o
obj-$(CONFIG_MIPS_MALTA) += fixup-malta.o
obj-$(CONFIG_PMC_MSP7120_GW) += fixup-pmcmsp.o ops-pmcmsp.o
obj-$(CONFIG_PMC_MSP7120_EVAL) += fixup-pmcmsp.o ops-pmcmsp.o
diff --git a/arch/mips/pci/fixup-fuloong2f.c b/arch/mips/pci/fixup-fuloong2f.c
new file mode 100644
index 0000000..99fd2c8
--- /dev/null
+++ b/arch/mips/pci/fixup-fuloong2f.c
@@ -0,0 +1,171 @@
+/*
+ * Copyright (C) 2008 Lemote Technology
+ * Copyright (C) 2004 ICT CAS
+ * Author: Li xiaoyu, lixy@....ac.cn
+ *
+ * Copyright (C) 2007 Lemote, Inc. & Institute of Computing Technology
+ * Author: Fuxin Zhang, zhangfx@...ote.com
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ */
+#include <linux/init.h>
+#include <linux/pci.h>
+
+#include <loongson.h>
+#include <cs5536/cs5536.h>
+#include <cs5536/cs5536_pci.h>
+
+/* PCI interrupt pins
+ *
+ * These should not be changed, or you should consider loongson2f interrupt
+ * register and your pci card dispatch
+ */
+
+#define PCIA 4
+#define PCIB 5
+#define PCIC 6
+#define PCID 7
+
+/* all the pci device has the PCIA pin, check the datasheet. */
+static char irq_tab[][5] __initdata = {
+ /* INTA INTB INTC INTD */
+ {0, 0, 0, 0, 0}, /* 11: Unused */
+ {0, 0, 0, 0, 0}, /* 12: Unused */
+ {0, 0, 0, 0, 0}, /* 13: Unused */
+ {0, 0, 0, 0, 0}, /* 14: Unused */
+ {0, 0, 0, 0, 0}, /* 15: Unused */
+ {0, 0, 0, 0, 0}, /* 16: Unused */
+ {0, PCIA, 0, 0, 0}, /* 17: RTL8110-0 */
+ {0, PCIB, 0, 0, 0}, /* 18: RTL8110-1 */
+ {0, PCIC, 0, 0, 0}, /* 19: SiI3114 */
+ {0, PCID, 0, 0, 0}, /* 20: 3-ports nec usb */
+ {0, PCIA, PCIB, PCIC, PCID}, /* 21: PCI-SLOT */
+ {0, 0, 0, 0, 0}, /* 22: Unused */
+ {0, 0, 0, 0, 0}, /* 23: Unused */
+ {0, 0, 0, 0, 0}, /* 24: Unused */
+ {0, 0, 0, 0, 0}, /* 25: Unused */
+ {0, 0, 0, 0, 0}, /* 26: Unused */
+ {0, 0, 0, 0, 0}, /* 27: Unused */
+};
+
+int __init pcibios_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
+{
+ int virq;
+
+ if ((PCI_SLOT(dev->devfn) != PCI_IDSEL_CS5536)
+ && (PCI_SLOT(dev->devfn) < 32)) {
+ virq = irq_tab[slot][pin];
+ printk(KERN_INFO "slot: %d, pin: %d, irq: %d\n", slot, pin,
+ virq + LOONGSON_IRQ_BASE);
+ if (virq != 0)
+ return LOONGSON_IRQ_BASE + virq;
+ else
+ return 0;
+ } else if (PCI_SLOT(dev->devfn) == PCI_IDSEL_CS5536) { /* cs5536 */
+ switch (PCI_FUNC(dev->devfn)) {
+ case 2:
+ pci_write_config_byte(dev, PCI_INTERRUPT_LINE,
+ CS5536_IDE_INTR);
+ return 14; /* for IDE */
+ case 3:
+ pci_write_config_byte(dev, PCI_INTERRUPT_LINE,
+ CS5536_ACC_INTR);
+ return 9; /* for AUDIO */
+ case 4: /* for OHCI */
+ case 5: /* for EHCI */
+ case 6: /* for UDC */
+ case 7: /* for OTG */
+ pci_write_config_byte(dev, PCI_INTERRUPT_LINE,
+ CS5536_USB_INTR);
+ return 11;
+ }
+ return dev->irq;
+ } else {
+ printk(KERN_INFO " strange pci slot number.\n");
+ return 0;
+ }
+}
+
+/* Do platform specific device initialization at pci_enable_device() time */
+int pcibios_plat_dev_init(struct pci_dev *dev)
+{
+ return 0;
+}
+
+/* CS5536 SPEC. fixup */
+static void __init loongson_cs5536_isa_fixup(struct pci_dev *pdev)
+{
+ /* the uart1 and uart2 interrupt in PIC is enabled as default */
+ pci_write_config_dword(pdev, PCI_UART1_INT_REG, 1);
+ pci_write_config_dword(pdev, PCI_UART2_INT_REG, 1);
+ return;
+}
+
+static void __init loongson_cs5536_ide_fixup(struct pci_dev *pdev)
+{
+ /* setting the mutex pin as IDE function */
+ pci_write_config_dword(pdev, PCI_IDE_CFG_REG,
+ CS5536_IDE_FLASH_SIGNATURE);
+ return;
+}
+
+static void __init loongson_cs5536_acc_fixup(struct pci_dev *pdev)
+{
+ u8 val;
+
+ /* enable the AUDIO interrupt in PIC */
+ pci_write_config_dword(pdev, PCI_ACC_INT_REG, 1);
+
+#if 1
+ pci_read_config_byte(pdev, PCI_LATENCY_TIMER, &val);
+ printk(KERN_INFO "cs5536 acc latency 0x%x\n", val);
+ pci_write_config_byte(pdev, PCI_LATENCY_TIMER, 0xc0);
+#endif
+ return;
+}
+
+static void __init loongson_cs5536_ohci_fixup(struct pci_dev *pdev)
+{
+ /* enable the OHCI interrupt in PIC */
+ /* THE OHCI, EHCI, UDC, OTG are shared with interrupt in PIC */
+ pci_write_config_dword(pdev, PCI_OHCI_INT_REG, 1);
+ return;
+}
+
+static void __init loongson_cs5536_ehci_fixup(struct pci_dev *pdev)
+{
+ u32 hi, lo;
+
+ /* Serial short detect enable */
+ _rdmsr(USB_MSR_REG(USB_CONFIG), &hi, &lo);
+ _wrmsr(USB_MSR_REG(USB_CONFIG), (1 << 1) | (1 << 2) | (1 << 3), lo);
+
+ /* setting the USB2.0 micro frame length */
+ pci_write_config_dword(pdev, PCI_EHCI_FLADJ_REG, 0x2000);
+ return;
+}
+
+static void __init loongson_nec_fixup(struct pci_dev *pdev)
+{
+ unsigned int val;
+
+ pci_read_config_dword(pdev, 0xe0, &val);
+ /* Only 2 port be used */
+ pci_write_config_dword(pdev, 0xe0, (val & ~3) | 0x2);
+}
+
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_CS5536_ISA,
+ loongson_cs5536_isa_fixup);
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_CS5536_OHC,
+ loongson_cs5536_ohci_fixup);
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_CS5536_EHC,
+ loongson_cs5536_ehci_fixup);
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_CS5536_AUDIO,
+ loongson_cs5536_acc_fixup);
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_CS5536_IDE,
+ loongson_cs5536_ide_fixup);
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_NEC, PCI_DEVICE_ID_NEC_USB,
+ loongson_nec_fixup);
diff --git a/arch/mips/pci/ops-fuloong2e.c b/arch/mips/pci/ops-fuloong2e.c
deleted file mode 100644
index 6bb7919..0000000
--- a/arch/mips/pci/ops-fuloong2e.c
+++ /dev/null
@@ -1,160 +0,0 @@
-/*
- * Copyright (C) 1999, 2000, 2004 MIPS Technologies, Inc.
- * All rights reserved.
- * Authors: Carsten Langgaard <carstenl@...s.com>
- * Maciej W. Rozycki <macro@...s.com>
- *
- * This program is free software; you can distribute it and/or modify it
- * under the terms of the GNU General Public License (Version 2) as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
- * for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
- *
- * MIPS boards specific PCI support.
- */
-#include <linux/types.h>
-#include <linux/pci.h>
-#include <linux/kernel.h>
-#include <linux/init.h>
-
-#include <loongson.h>
-
-#define PCI_ACCESS_READ 0
-#define PCI_ACCESS_WRITE 1
-
-#define CFG_SPACE_REG(offset) \
- (void *)CKSEG1ADDR(LOONGSON_PCICFG_BASE | (offset))
-#define ID_SEL_BEGIN 11
-#define MAX_DEV_NUM (31 - ID_SEL_BEGIN)
-
-
-static int loongson_pcibios_config_access(unsigned char access_type,
- struct pci_bus *bus,
- unsigned int devfn, int where,
- u32 *data)
-{
- u32 busnum = bus->number;
- u32 addr, type;
- u32 dummy;
- void *addrp;
- int device = PCI_SLOT(devfn);
- int function = PCI_FUNC(devfn);
- int reg = where & ~3;
-
- if (busnum == 0) {
- /* Type 0 configuration for onboard PCI bus */
- if (device > MAX_DEV_NUM)
- return -1;
-
- addr = (1 << (device + ID_SEL_BEGIN)) | (function << 8) | reg;
- type = 0;
- } else {
- /* Type 1 configuration for offboard PCI bus */
- addr = (busnum << 16) | (device << 11) | (function << 8) | reg;
- type = 0x10000;
- }
-
- /* Clear aborts */
- LOONGSON_PCICMD |= LOONGSON_PCICMD_MABORT_CLR | \
- LOONGSON_PCICMD_MTABORT_CLR;
-
- LOONGSON_PCIMAP_CFG = (addr >> 16) | type;
-
- /* Flush Bonito register block */
- dummy = LOONGSON_PCIMAP_CFG;
- mmiowb();
-
- addrp = CFG_SPACE_REG(addr & 0xffff);
- if (access_type == PCI_ACCESS_WRITE)
- writel(cpu_to_le32(*data), addrp);
- else
- *data = le32_to_cpu(readl(addrp));
-
- /* Detect Master/Target abort */
- if (LOONGSON_PCICMD & (LOONGSON_PCICMD_MABORT_CLR |
- LOONGSON_PCICMD_MTABORT_CLR)) {
- /* Error occurred */
-
- /* Clear bits */
- LOONGSON_PCICMD |= (LOONGSON_PCICMD_MABORT_CLR |
- LOONGSON_PCICMD_MTABORT_CLR);
-
- return -1;
- }
-
- return 0;
-
-}
-
-
-/*
- * We can't address 8 and 16 bit words directly. Instead we have to
- * read/write a 32bit word and mask/modify the data we actually want.
- */
-static int loongson_pcibios_read(struct pci_bus *bus, unsigned int devfn,
- int where, int size, u32 *val)
-{
- u32 data = 0;
-
- if ((size == 2) && (where & 1))
- return PCIBIOS_BAD_REGISTER_NUMBER;
- else if ((size == 4) && (where & 3))
- return PCIBIOS_BAD_REGISTER_NUMBER;
-
- if (loongson_pcibios_config_access(PCI_ACCESS_READ, bus, devfn, where,
- &data))
- return -1;
-
- if (size == 1)
- *val = (data >> ((where & 3) << 3)) & 0xff;
- else if (size == 2)
- *val = (data >> ((where & 3) << 3)) & 0xffff;
- else
- *val = data;
-
- return PCIBIOS_SUCCESSFUL;
-}
-
-static int loongson_pcibios_write(struct pci_bus *bus, unsigned int devfn,
- int where, int size, u32 val)
-{
- u32 data = 0;
-
- if ((size == 2) && (where & 1))
- return PCIBIOS_BAD_REGISTER_NUMBER;
- else if ((size == 4) && (where & 3))
- return PCIBIOS_BAD_REGISTER_NUMBER;
-
- if (size == 4)
- data = val;
- else {
- if (loongson_pcibios_config_access(PCI_ACCESS_READ, bus, devfn,
- where, &data))
- return -1;
-
- if (size == 1)
- data = (data & ~(0xff << ((where & 3) << 3))) |
- (val << ((where & 3) << 3));
- else if (size == 2)
- data = (data & ~(0xffff << ((where & 3) << 3))) |
- (val << ((where & 3) << 3));
- }
-
- if (loongson_pcibios_config_access(PCI_ACCESS_WRITE, bus, devfn, where,
- &data))
- return -1;
-
- return PCIBIOS_SUCCESSFUL;
-}
-
-struct pci_ops loongson_pci_ops = {
- .read = loongson_pcibios_read,
- .write = loongson_pcibios_write
-};
diff --git a/arch/mips/pci/ops-loongson2.c b/arch/mips/pci/ops-loongson2.c
new file mode 100644
index 0000000..08d705e
--- /dev/null
+++ b/arch/mips/pci/ops-loongson2.c
@@ -0,0 +1,213 @@
+/*
+ * Copyright (C) 1999, 2000, 2004 MIPS Technologies, Inc.
+ * All rights reserved.
+ * Authors: Carsten Langgaard <carstenl@...s.com>
+ * Maciej W. Rozycki <macro@...s.com>
+ *
+ * This program is free software; you can distribute it and/or modify it
+ * under the terms of the GNU General Public License (Version 2) as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+ * for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * MIPS boards specific PCI support.
+ */
+#include <linux/types.h>
+#include <linux/pci.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+
+#include <loongson.h>
+
+#ifdef CONFIG_CS5536
+#include <cs5536/cs5536_pci.h>
+#include <cs5536/cs5536.h>
+#endif
+
+#define PCI_ACCESS_READ 0
+#define PCI_ACCESS_WRITE 1
+
+#define CFG_SPACE_REG(offset) \
+ (void *)CKSEG1ADDR(LOONGSON_PCICFG_BASE | (offset))
+#define ID_SEL_BEGIN 11
+#define MAX_DEV_NUM (31 - ID_SEL_BEGIN)
+
+
+static int loongson_pcibios_config_access(unsigned char access_type,
+ struct pci_bus *bus,
+ unsigned int devfn, int where,
+ u32 *data)
+{
+ u32 busnum = bus->number;
+ u32 addr, type;
+ u32 dummy;
+ void *addrp;
+ int device = PCI_SLOT(devfn);
+ int function = PCI_FUNC(devfn);
+ int reg = where & ~3;
+
+ if (busnum == 0) {
+ /* board-specific part,currently,only fuloong2f,yeeloong2f
+ * use CS5536, fuloong2e use via686b, gdium has no
+ * south bridge
+ */
+#ifdef CONFIG_CS5536
+ /* cs5536_pci_conf_read4/write4() will call _rdmsr/_wrmsr()
+ * to access the regsters 0xf4,0xf8,0xfc, which is bigger than
+ * 0xf0, so, it will not go this branch, but the others. so,
+ * no calling dead loop here.
+ */
+ if ((PCI_IDSEL_CS5536 == device) && (reg < 0xF0)) {
+ switch (access_type) {
+ case PCI_ACCESS_READ:
+ *data = cs5536_pci_conf_read4(function, reg);
+ break;
+ case PCI_ACCESS_WRITE:
+ cs5536_pci_conf_write4(function, reg, *data);
+ break;
+ }
+ return 0;
+ }
+#endif
+ /* Type 0 configuration for onboard PCI bus */
+ if (device > MAX_DEV_NUM)
+ return -1;
+
+ addr = (1 << (device + ID_SEL_BEGIN)) | (function << 8) | reg;
+ type = 0;
+ } else {
+ /* Type 1 configuration for offboard PCI bus */
+ addr = (busnum << 16) | (device << 11) | (function << 8) | reg;
+ type = 0x10000;
+ }
+
+ /* Clear aborts */
+ LOONGSON_PCICMD |= LOONGSON_PCICMD_MABORT_CLR | \
+ LOONGSON_PCICMD_MTABORT_CLR;
+
+ LOONGSON_PCIMAP_CFG = (addr >> 16) | type;
+
+ /* Flush Bonito register block */
+ dummy = LOONGSON_PCIMAP_CFG;
+ mmiowb();
+
+ addrp = CFG_SPACE_REG(addr & 0xffff);
+ if (access_type == PCI_ACCESS_WRITE)
+ writel(cpu_to_le32(*data), addrp);
+ else
+ *data = le32_to_cpu(readl(addrp));
+
+ /* Detect Master/Target abort */
+ if (LOONGSON_PCICMD & (LOONGSON_PCICMD_MABORT_CLR |
+ LOONGSON_PCICMD_MTABORT_CLR)) {
+ /* Error occurred */
+
+ /* Clear bits */
+ LOONGSON_PCICMD |= (LOONGSON_PCICMD_MABORT_CLR |
+ LOONGSON_PCICMD_MTABORT_CLR);
+
+ return -1;
+ }
+
+ return 0;
+
+}
+
+
+/*
+ * We can't address 8 and 16 bit words directly. Instead we have to
+ * read/write a 32bit word and mask/modify the data we actually want.
+ */
+static int loongson_pcibios_read(struct pci_bus *bus, unsigned int devfn,
+ int where, int size, u32 *val)
+{
+ u32 data = 0;
+
+ if ((size == 2) && (where & 1))
+ return PCIBIOS_BAD_REGISTER_NUMBER;
+ else if ((size == 4) && (where & 3))
+ return PCIBIOS_BAD_REGISTER_NUMBER;
+
+ if (loongson_pcibios_config_access(PCI_ACCESS_READ, bus, devfn, where,
+ &data))
+ return -1;
+
+ if (size == 1)
+ *val = (data >> ((where & 3) << 3)) & 0xff;
+ else if (size == 2)
+ *val = (data >> ((where & 3) << 3)) & 0xffff;
+ else
+ *val = data;
+
+ return PCIBIOS_SUCCESSFUL;
+}
+
+static int loongson_pcibios_write(struct pci_bus *bus, unsigned int devfn,
+ int where, int size, u32 val)
+{
+ u32 data = 0;
+
+ if ((size == 2) && (where & 1))
+ return PCIBIOS_BAD_REGISTER_NUMBER;
+ else if ((size == 4) && (where & 3))
+ return PCIBIOS_BAD_REGISTER_NUMBER;
+
+ if (size == 4)
+ data = val;
+ else {
+ if (loongson_pcibios_config_access(PCI_ACCESS_READ, bus, devfn,
+ where, &data))
+ return -1;
+
+ if (size == 1)
+ data = (data & ~(0xff << ((where & 3) << 3))) |
+ (val << ((where & 3) << 3));
+ else if (size == 2)
+ data = (data & ~(0xffff << ((where & 3) << 3))) |
+ (val << ((where & 3) << 3));
+ }
+
+ if (loongson_pcibios_config_access(PCI_ACCESS_WRITE, bus, devfn, where,
+ &data))
+ return -1;
+
+ return PCIBIOS_SUCCESSFUL;
+}
+
+struct pci_ops loongson_pci_ops = {
+ .read = loongson_pcibios_read,
+ .write = loongson_pcibios_write
+};
+
+#ifdef CONFIG_CS5536
+void _rdmsr(u32 msr, u32 *hi, u32 *lo)
+{
+ struct pci_bus bus = {
+ .number = PCI_BUS_CS5536
+ };
+ u32 devfn = PCI_DEVFN(PCI_IDSEL_CS5536, 0);
+ loongson_pcibios_write(&bus, devfn, PCI_MSR_ADDR, 4, msr);
+ loongson_pcibios_read(&bus, devfn, PCI_MSR_DATA_LO, 4, lo);
+ loongson_pcibios_read(&bus, devfn, PCI_MSR_DATA_HI, 4, hi);
+}
+EXPORT_SYMBOL(_rdmsr);
+
+void _wrmsr(u32 msr, u32 hi, u32 lo)
+{
+ struct pci_bus bus = {
+ .number = PCI_BUS_CS5536
+ };
+ u32 devfn = PCI_DEVFN(PCI_IDSEL_CS5536, 0);
+ loongson_pcibios_write(&bus, devfn, PCI_MSR_ADDR, 4, msr);
+ loongson_pcibios_write(&bus, devfn, PCI_MSR_DATA_LO, 4, lo);
+ loongson_pcibios_write(&bus, devfn, PCI_MSR_DATA_HI, 4, hi);
+}
+EXPORT_SYMBOL(_wrmsr);
+#endif
--
1.6.2.1
--
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