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Date: Thu, 2 Jul 2009 23:26:45 +0800
From: Wu Zhangjin <wuzhangjin@...il.com>
To: linux-kernel@...r.kernel.org, linux-mips@...ux-mips.org,
ralf@...ux-mips.org
Cc: 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>,
loongson-dev <loongson-dev@...glegroups.com>,
Liu Junliang <liujl@...ote.com>,
Erwan Lerale <erwan@...scow.com>,
Arnaud Patard <apatard@...driva.com>
Subject: [PATCH v4 13/16] [loongson] split common loongson source code out
to share common loongson source code between all of the loongson-based
machines. there is a need to split it out of the fuloong-2e/ directory.
at the same time, other according tuning is needed. the machine-specific
parts are defined as macros in relative header file, pci.h, mem.h,
machine.h.
Signed-off-by: Wu Zhangjin <wuzhangjin@...il.com>
---
arch/mips/Kconfig | 32 +++-------
arch/mips/Makefile | 7 +-
arch/mips/include/asm/mach-loongson/loongson.h | 11 +++
arch/mips/include/asm/mach-loongson/machine.h | 22 ++++++
arch/mips/include/asm/mach-loongson/mem.h | 30 +++++++++
arch/mips/include/asm/mach-loongson/pci.h | 12 +++-
arch/mips/loongson/Kconfig | 31 +++++++++
arch/mips/loongson/Makefile | 11 +++
arch/mips/loongson/common/Makefile | 11 +++
arch/mips/loongson/common/bonito-irq.c | 51 +++++++++++++++
arch/mips/loongson/common/cmdline.c | 52 +++++++++++++++
arch/mips/loongson/common/early_printk.c | 38 +++++++++++
arch/mips/loongson/common/env.c | 58 ++++++++++++++++
arch/mips/loongson/common/init.c | 30 +++++++++
arch/mips/loongson/common/irq.c | 74 +++++++++++++++++++++
arch/mips/loongson/common/machtype.c | 17 +++++
arch/mips/loongson/common/mem.c | 35 ++++++++++
arch/mips/loongson/common/pci.c | 83 ++++++++++++++++++++++++
arch/mips/loongson/common/reset.c | 39 +++++++++++
arch/mips/loongson/common/setup.c | 60 +++++++++++++++++
arch/mips/loongson/common/time.c | 27 ++++++++
arch/mips/loongson/fuloong-2e/Makefile | 8 +--
arch/mips/loongson/fuloong-2e/bonito-irq.c | 51 ---------------
arch/mips/loongson/fuloong-2e/cmdline.c | 52 ---------------
arch/mips/loongson/fuloong-2e/early_printk.c | 39 -----------
arch/mips/loongson/fuloong-2e/env.c | 58 ----------------
arch/mips/loongson/fuloong-2e/init.c | 30 ---------
arch/mips/loongson/fuloong-2e/irq.c | 52 ++-------------
arch/mips/loongson/fuloong-2e/machtype.c | 15 ----
arch/mips/loongson/fuloong-2e/mem.c | 36 ----------
arch/mips/loongson/fuloong-2e/pci.c | 83 ------------------------
arch/mips/loongson/fuloong-2e/reset.c | 31 ++-------
arch/mips/loongson/fuloong-2e/setup.c | 60 -----------------
arch/mips/loongson/fuloong-2e/time.c | 27 --------
34 files changed, 717 insertions(+), 556 deletions(-)
create mode 100644 arch/mips/include/asm/mach-loongson/machine.h
create mode 100644 arch/mips/include/asm/mach-loongson/mem.h
create mode 100644 arch/mips/loongson/Kconfig
create mode 100644 arch/mips/loongson/Makefile
create mode 100644 arch/mips/loongson/common/Makefile
create mode 100644 arch/mips/loongson/common/bonito-irq.c
create mode 100644 arch/mips/loongson/common/cmdline.c
create mode 100644 arch/mips/loongson/common/early_printk.c
create mode 100644 arch/mips/loongson/common/env.c
create mode 100644 arch/mips/loongson/common/init.c
create mode 100644 arch/mips/loongson/common/irq.c
create mode 100644 arch/mips/loongson/common/machtype.c
create mode 100644 arch/mips/loongson/common/mem.c
create mode 100644 arch/mips/loongson/common/pci.c
create mode 100644 arch/mips/loongson/common/reset.c
create mode 100644 arch/mips/loongson/common/setup.c
create mode 100644 arch/mips/loongson/common/time.c
delete mode 100644 arch/mips/loongson/fuloong-2e/bonito-irq.c
delete mode 100644 arch/mips/loongson/fuloong-2e/cmdline.c
delete mode 100644 arch/mips/loongson/fuloong-2e/early_printk.c
delete mode 100644 arch/mips/loongson/fuloong-2e/env.c
delete mode 100644 arch/mips/loongson/fuloong-2e/init.c
delete mode 100644 arch/mips/loongson/fuloong-2e/machtype.c
delete mode 100644 arch/mips/loongson/fuloong-2e/mem.c
delete mode 100644 arch/mips/loongson/fuloong-2e/pci.c
delete mode 100644 arch/mips/loongson/fuloong-2e/setup.c
delete mode 100644 arch/mips/loongson/fuloong-2e/time.c
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index 3414e23..482dcc3 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -174,30 +174,15 @@ config LASAT
select SYS_SUPPORTS_64BIT_KERNEL if BROKEN
select SYS_SUPPORTS_LITTLE_ENDIAN
-config LEMOTE_FULOONG2E
- bool "Lemote Fuloong2e mini-PC"
- select ARCH_SPARSEMEM_ENABLE
- select CEVT_R4K
- select CSRC_R4K
- select SYS_HAS_CPU_LOONGSON2
- select DMA_NONCOHERENT
- select BOOT_ELF32
- select BOARD_SCACHE
- select HAVE_STD_PC_SERIAL_PORT
- 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_ISA_DMA_SUPPORT_BROKEN
- select CPU_HAS_WB
+config MACH_LOONGSON
+ bool "Loongson family of machines"
help
- Lemote Fuloong2e mini-PC board based on the Chinese Loongson-2E CPU and
- an FPGA northbridge
+ This enables the support of Loongson family of machines.
+
+ Loongson is a family of general-purpose MIPS-compatible CPUs.
+ developed at Institute of Computing Technology (ICT),
+ Chinese Academy of Sciences (CAS) in the People's Republic
+ of China. The chief architect is Professor Weiwu Hu.
config MIPS_MALTA
bool "MIPS Malta board"
@@ -668,6 +653,7 @@ source "arch/mips/sibyte/Kconfig"
source "arch/mips/txx9/Kconfig"
source "arch/mips/vr41xx/Kconfig"
source "arch/mips/cavium-octeon/Kconfig"
+source "arch/mips/loongson/Kconfig"
endmenu
diff --git a/arch/mips/Makefile b/arch/mips/Makefile
index 7754cbb..94d6f58 100644
--- a/arch/mips/Makefile
+++ b/arch/mips/Makefile
@@ -314,11 +314,12 @@ cflags-$(CONFIG_WR_PPMC) += -I$(srctree)/arch/mips/include/asm/mach-wrppmc
load-$(CONFIG_WR_PPMC) += 0xffffffff80100000
#
-# lemote fuloong2e mini-PC board
+# Loongson family
#
-core-$(CONFIG_LEMOTE_FULOONG2E) +=arch/mips/loongson/fuloong-2e/
+core-$(CONFIG_MACH_LOONGSON) +=arch/mips/loongson/
+cflags-$(CONFIG_MACH_LOONGSON) += -I$(srctree)/arch/mips/include/asm/mach-loongson \
+ -mno-branch-likely
load-$(CONFIG_LEMOTE_FULOONG2E) +=0xffffffff80100000
-cflags-$(CONFIG_LEMOTE_FULOONG2E) += -I$(srctree)/arch/mips/include/asm/mach-loongson/
#
# MIPS Malta board
diff --git a/arch/mips/include/asm/mach-loongson/loongson.h b/arch/mips/include/asm/mach-loongson/loongson.h
index 95ee4c8..1c6d4a8 100644
--- a/arch/mips/include/asm/mach-loongson/loongson.h
+++ b/arch/mips/include/asm/mach-loongson/loongson.h
@@ -24,6 +24,10 @@ extern void bonito_irq_init(void);
/* loongson-based machines specific reboot setup */
extern void mips_reboot_setup(void);
+/* machine-specific reboot/halt operation */
+extern void mach_prepare_reboot(void);
+extern void mach_prepare_shutdown(void);
+
/* environment arguments from bootloader */
extern unsigned long bus_clock, cpu_clock_freq;
extern unsigned long memsize, highmemsize;
@@ -33,6 +37,13 @@ extern void __init prom_init_memory(void);
extern void __init prom_init_cmdline(void);
extern void __init prom_init_env(void);
+/* irq operation functions */
+extern void bonito_irqdispatch(void);
+extern void __init bonito_irq_init(void);
+extern void __init set_irq_trigger_mode(void);
+extern void __init mach_init_irq(void);
+extern void mach_irq_dispatch(unsigned int pending);
+
/* PCI Configuration Registers */
#define LOONGSON_PCI_ISR4C BONITO_PCI_REG(0x4c)
diff --git a/arch/mips/include/asm/mach-loongson/machine.h b/arch/mips/include/asm/mach-loongson/machine.h
new file mode 100644
index 0000000..8e60d36
--- /dev/null
+++ b/arch/mips/include/asm/mach-loongson/machine.h
@@ -0,0 +1,22 @@
+/*
+ * 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.
+ */
+
+#ifndef __ASM_MACH_LOONGSON_MACHINE_H
+#define __ASM_MACH_LOONGSON_MACHINE_H
+
+#ifdef CONFIG_LEMOTE_FULOONG2E
+
+#define LOONGSON_UART_BASE (BONITO_PCIIO_BASE + 0x3f8)
+
+#define LOONGSON_MACHNAME "lemote-fuloong-2e-box"
+
+#endif
+
+#endif /* __ASM_MACH_LOONGSON_MACHINE_H */
diff --git a/arch/mips/include/asm/mach-loongson/mem.h b/arch/mips/include/asm/mach-loongson/mem.h
new file mode 100644
index 0000000..bd7b3cb
--- /dev/null
+++ b/arch/mips/include/asm/mach-loongson/mem.h
@@ -0,0 +1,30 @@
+/*
+ * 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.
+ */
+
+#ifndef __ASM_MACH_LOONGSON_MEM_H
+#define __ASM_MACH_LOONGSON_MEM_H
+
+/*
+ * On Lemote Loongson 2e
+ *
+ * the high memory space starts from 512M.
+ * the peripheral registers reside between 0x1000:0000 and 0x2000:0000.
+ */
+
+#ifdef CONFIG_LEMOTE_FULOONG2E
+
+#define LOONGSON_HIGHMEM_START 0x20000000
+
+#define LOONGSON_MMIO_MEM_START 0x10000000
+#define LOONGSON_MMIO_MEM_END 0x20000000
+
+#endif
+
+#endif /* __ASM_MACH_LOONGSON_MEM_H */
diff --git a/arch/mips/include/asm/mach-loongson/pci.h b/arch/mips/include/asm/mach-loongson/pci.h
index e229b29..f1663ca 100644
--- a/arch/mips/include/asm/mach-loongson/pci.h
+++ b/arch/mips/include/asm/mach-loongson/pci.h
@@ -24,8 +24,14 @@
extern struct pci_ops bonito64_pci_ops;
-#define LOONGSON2E_PCI_MEM_START BONITO_PCILO1_BASE
-#define LOONGSON2E_PCI_MEM_END (BONITO_PCILO1_BASE + 0x04000000 * 2)
-#define LOONGSON2E_PCI_IO_START 0x00004000UL
+#ifdef CONFIG_LEMOTE_FULOONG2E
+
+/* this pci memory space is mapped by pcimap in pci.c */
+#define LOONGSON_PCI_MEM_START BONITO_PCILO1_BASE
+#define LOONGSON_PCI_MEM_END (BONITO_PCILO1_BASE + 0x04000000 * 2)
+/* this is an offset from mips_io_port_base */
+#define LOONGSON_PCI_IO_START 0x00004000UL
+
+#endif
#endif /* !__ASM_MACH_LOONGSON_PCI_H_ */
diff --git a/arch/mips/loongson/Kconfig b/arch/mips/loongson/Kconfig
new file mode 100644
index 0000000..376712a
--- /dev/null
+++ b/arch/mips/loongson/Kconfig
@@ -0,0 +1,31 @@
+choice
+ prompt "Machine Type"
+ depends on MACH_LOONGSON
+
+config LEMOTE_FULOONG2E
+ bool "Lemote Fuloong(2e) mini-PC"
+ select ARCH_SPARSEMEM_ENABLE
+ select CEVT_R4K
+ select CSRC_R4K
+ select SYS_HAS_CPU_LOONGSON2
+ 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
+ help
+ Lemote Fuloong(2e) mini-PC board based on the Chinese Loongson-2E CPU and
+ an FPGA northbridge
+
+ Lemote Fuloong(2e) mini PC have a VIA686B south bridge.
+endchoice
diff --git a/arch/mips/loongson/Makefile b/arch/mips/loongson/Makefile
new file mode 100644
index 0000000..39048c4
--- /dev/null
+++ b/arch/mips/loongson/Makefile
@@ -0,0 +1,11 @@
+#
+# Common code for all Loongson based systems
+#
+
+obj-$(CONFIG_MACH_LOONGSON) += common/
+
+#
+# Lemote Fuloong mini-PC (Loongson 2E-based)
+#
+
+obj-$(CONFIG_LEMOTE_FULOONG2E) += fuloong-2e/
diff --git a/arch/mips/loongson/common/Makefile b/arch/mips/loongson/common/Makefile
new file mode 100644
index 0000000..4e3889d
--- /dev/null
+++ b/arch/mips/loongson/common/Makefile
@@ -0,0 +1,11 @@
+#
+# Makefile for loongson based machines.
+#
+
+obj-y += setup.o init.o cmdline.o env.o time.o reset.o irq.o \
+ pci.o bonito-irq.o mem.o
+
+#
+# Early printk support
+#
+obj-$(CONFIG_EARLY_PRINTK) += early_printk.o
diff --git a/arch/mips/loongson/common/bonito-irq.c b/arch/mips/loongson/common/bonito-irq.c
new file mode 100644
index 0000000..3e31e7a
--- /dev/null
+++ b/arch/mips/loongson/common/bonito-irq.c
@@ -0,0 +1,51 @@
+/*
+ * Copyright 2001 MontaVista Software Inc.
+ * Author: Jun Sun, jsun@...sta.com or jsun@...sun.net
+ * Copyright (C) 2000, 2001 Ralf Baechle (ralf@....org)
+ *
+ * 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>
+
+static inline void bonito_irq_enable(unsigned int irq)
+{
+ BONITO_INTENSET = (1 << (irq - BONITO_IRQ_BASE));
+ mmiowb();
+}
+
+static inline void bonito_irq_disable(unsigned int irq)
+{
+ BONITO_INTENCLR = (1 << (irq - BONITO_IRQ_BASE));
+ mmiowb();
+}
+
+static struct irq_chip bonito_irq_type = {
+ .name = "bonito_irq",
+ .ack = bonito_irq_disable,
+ .mask = bonito_irq_disable,
+ .mask_ack = bonito_irq_disable,
+ .unmask = bonito_irq_enable,
+};
+
+static struct irqaction dma_timeout_irqaction = {
+ .handler = no_action,
+ .name = "dma_timeout",
+};
+
+void bonito_irq_init(void)
+{
+ u32 i;
+
+ for (i = BONITO_IRQ_BASE; i < BONITO_IRQ_BASE + 32; i++)
+ set_irq_chip_and_handler(i, &bonito_irq_type, handle_level_irq);
+
+ setup_irq(BONITO_IRQ_BASE + 10, &dma_timeout_irqaction);
+}
diff --git a/arch/mips/loongson/common/cmdline.c b/arch/mips/loongson/common/cmdline.c
new file mode 100644
index 0000000..75f1b24
--- /dev/null
+++ b/arch/mips/loongson/common/cmdline.c
@@ -0,0 +1,52 @@
+/*
+ * Based on Ocelot Linux port, which is
+ * Copyright 2001 MontaVista Software Inc.
+ * Author: jsun@...sta.com or jsun@...sun.net
+ *
+ * Copyright 2003 ICT CAS
+ * Author: Michael Guo <guoyi@....ac.cn>
+ *
+ * Copyright (C) 2007 Lemote Inc. & Insititute of Computing Technology
+ * Author: Fuxin Zhang, zhangfx@...ote.com
+ *
+ * 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 <asm/bootinfo.h>
+
+#include <loongson.h>
+
+int prom_argc;
+/* pmon passes arguments in 32bit pointers */
+int *_prom_argv;
+
+void __init prom_init_cmdline(void)
+{
+ int i;
+ long l;
+
+ /* firmware arguments are initialized in head.S */
+ prom_argc = fw_arg0;
+ _prom_argv = (int *)fw_arg1;
+
+ /* arg[0] is "g", the rest is boot parameters */
+ arcs_cmdline[0] = '\0';
+ for (i = 1; i < prom_argc; i++) {
+ l = (long)_prom_argv[i];
+ if (strlen(arcs_cmdline) + strlen(((char *)l) + 1)
+ >= sizeof(arcs_cmdline))
+ break;
+ strcat(arcs_cmdline, ((char *)l));
+ strcat(arcs_cmdline, " ");
+ }
+
+ if ((strstr(arcs_cmdline, "console=")) == NULL)
+ strcat(arcs_cmdline, " console=ttyS0,115200");
+ if ((strstr(arcs_cmdline, "root=")) == NULL)
+ strcat(arcs_cmdline, " root=/dev/hda1");
+}
diff --git a/arch/mips/loongson/common/early_printk.c b/arch/mips/loongson/common/early_printk.c
new file mode 100644
index 0000000..bc73edc
--- /dev/null
+++ b/arch/mips/loongson/common/early_printk.c
@@ -0,0 +1,38 @@
+/* early printk support
+ *
+ * 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/serial_reg.h>
+
+#include <loongson.h>
+#include <machine.h>
+
+#define PORT(base, offset) (u8 *)(base + offset)
+
+static inline unsigned int serial_in(phys_addr_t base, int offset)
+{
+ return readb(PORT(base, offset));
+}
+
+static inline void serial_out(phys_addr_t base, int offset, int value)
+{
+ writeb(value, PORT(base, offset));
+}
+
+void prom_putchar(char c)
+{
+ phys_addr_t uart_base =
+ (phys_addr_t) ioremap_nocache(LOONGSON_UART_BASE, 8);
+
+ while ((serial_in(uart_base, UART_LSR) & UART_LSR_THRE) == 0)
+ ;
+
+ serial_out(uart_base, UART_TX, c);
+}
diff --git a/arch/mips/loongson/common/env.c b/arch/mips/loongson/common/env.c
new file mode 100644
index 0000000..b9ef503
--- /dev/null
+++ b/arch/mips/loongson/common/env.c
@@ -0,0 +1,58 @@
+/*
+ * Based on Ocelot Linux port, which is
+ * Copyright 2001 MontaVista Software Inc.
+ * Author: jsun@...sta.com or jsun@...sun.net
+ *
+ * Copyright 2003 ICT CAS
+ * Author: Michael Guo <guoyi@....ac.cn>
+ *
+ * Copyright (C) 2007 Lemote Inc. & Insititute of Computing Technology
+ * Author: Fuxin Zhang, zhangfx@...ote.com
+ *
+ * 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 <asm/bootinfo.h>
+
+#include <loongson.h>
+
+unsigned long bus_clock, cpu_clock_freq;
+unsigned long memsize, highmemsize;
+
+/* pmon passes arguments in 32bit pointers */
+int *_prom_envp;
+
+#define parse_even_earlier(res, option, p) \
+do { \
+ if (strncmp(option, (char *)p, strlen(option)) == 0) \
+ strict_strtol((char *)p + strlen(option"="), \
+ 10, &res); \
+} while (0)
+
+void __init prom_init_env(void)
+{
+ long l;
+
+ /* firmware arguments are initialized in head.S */
+ _prom_envp = (int *)fw_arg2;
+
+ l = (long)*_prom_envp;
+ while (l != 0) {
+ parse_even_earlier(bus_clock, "busclock", l);
+ parse_even_earlier(cpu_clock_freq, "cpuclock", l);
+ parse_even_earlier(memsize, "memsize", l);
+ parse_even_earlier(highmemsize, "highmemsize", l);
+ _prom_envp++;
+ l = (long)*_prom_envp;
+ }
+ if (memsize == 0)
+ memsize = 256;
+
+ pr_info("busclock=%ld, cpuclock=%ld, memsize=%ld, highmemsize=%ld\n",
+ bus_clock, cpu_clock_freq, memsize, highmemsize);
+}
diff --git a/arch/mips/loongson/common/init.c b/arch/mips/loongson/common/init.c
new file mode 100644
index 0000000..3abe927
--- /dev/null
+++ b/arch/mips/loongson/common/init.c
@@ -0,0 +1,30 @@
+/*
+ * 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/bootmem.h>
+
+#include <asm/bootinfo.h>
+
+#include <loongson.h>
+
+void __init prom_init(void)
+{
+ /* init base address of io space */
+ set_io_port_base((unsigned long)
+ ioremap(BONITO_PCIIO_BASE, BONITO_PCIIO_SIZE));
+
+ prom_init_cmdline();
+ prom_init_env();
+ prom_init_memory();
+}
+
+void __init prom_free_prom_memory(void)
+{
+}
diff --git a/arch/mips/loongson/common/irq.c b/arch/mips/loongson/common/irq.c
new file mode 100644
index 0000000..f368c73
--- /dev/null
+++ b/arch/mips/loongson/common/irq.c
@@ -0,0 +1,74 @@
+/*
+ * 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/delay.h>
+#include <linux/interrupt.h>
+
+#include <loongson.h>
+/*
+ * the first level int-handler will jump here if it is a bonito irq
+ */
+void bonito_irqdispatch(void)
+{
+ u32 int_status;
+ int i;
+
+ /* workaround the IO dma problem: let cpu looping to allow DMA finish */
+ int_status = BONITO_INTISR;
+ if (int_status & (1 << 10)) {
+ while (int_status & (1 << 10)) {
+ udelay(1);
+ int_status = BONITO_INTISR;
+ }
+ }
+
+ /* Get pending sources, masked by current enables */
+ int_status = BONITO_INTISR & BONITO_INTEN;
+
+ if (int_status != 0) {
+ i = __ffs(int_status);
+ int_status &= ~(1 << i);
+ do_IRQ(BONITO_IRQ_BASE + i);
+ }
+}
+
+asmlinkage void plat_irq_dispatch(void)
+{
+ unsigned int pending;
+
+ pending = read_c0_cause() & read_c0_status() & ST0_IM;
+
+ /* machine-specific plat_irq_dispatch */
+ mach_irq_dispatch(pending);
+}
+
+void __init arch_init_irq(void)
+{
+ /*
+ * Clear all of the interrupts while we change the able around a bit.
+ * int-handler is not on bootstrap
+ */
+ clear_c0_status(ST0_IM | ST0_BEV);
+ local_irq_disable();
+
+ /* setting irq trigger mode */
+ set_irq_trigger_mode();
+
+ /* no steer */
+ BONITO_INTSTEER = 0;
+
+ /*
+ * Mask out all interrupt by writing "1" to all bit position in
+ * the interrupt reset reg.
+ */
+ BONITO_INTENCLR = ~0;
+
+ /* machine specific irq init */
+ mach_init_irq();
+}
diff --git a/arch/mips/loongson/common/machtype.c b/arch/mips/loongson/common/machtype.c
new file mode 100644
index 0000000..845b3fb
--- /dev/null
+++ b/arch/mips/loongson/common/machtype.c
@@ -0,0 +1,17 @@
+/*
+ * 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 <machine.h>
+
+const char *get_system_type(void)
+{
+ return LOONGSON_MACHNAME;
+}
+
diff --git a/arch/mips/loongson/common/mem.c b/arch/mips/loongson/common/mem.c
new file mode 100644
index 0000000..7c92f79
--- /dev/null
+++ b/arch/mips/loongson/common/mem.c
@@ -0,0 +1,35 @@
+/*
+ * 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/fs.h>
+#include <linux/fcntl.h>
+#include <linux/mm.h>
+
+#include <asm/bootinfo.h>
+
+#include <loongson.h>
+#include <mem.h>
+
+void __init prom_init_memory(void)
+{
+ add_memory_region(0x0, (memsize << 20), BOOT_MEM_RAM);
+#ifdef CONFIG_64BIT
+ if (highmemsize > 0)
+ add_memory_region(LOONGSON_HIGHMEM_START,
+ highmemsize << 20, BOOT_MEM_RAM);
+#endif /* CONFIG_64BIT */
+}
+
+/* override of arch/mips/mm/cache.c: __uncached_access */
+int __uncached_access(struct file *file, unsigned long addr)
+{
+ if (file->f_flags & O_SYNC)
+ return 1;
+
+ return addr >= __pa(high_memory) ||
+ ((addr >= LOONGSON_MMIO_MEM_START) &&
+ (addr < LOONGSON_MMIO_MEM_END));
+}
diff --git a/arch/mips/loongson/common/pci.c b/arch/mips/loongson/common/pci.c
new file mode 100644
index 0000000..a3a4abf
--- /dev/null
+++ b/arch/mips/loongson/common/pci.c
@@ -0,0 +1,83 @@
+/*
+ * 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/pci.h>
+
+#include <pci.h>
+#include <loongson.h>
+
+static struct resource loongson_pci_mem_resource = {
+ .name = "pci memory space",
+ .start = LOONGSON_PCI_MEM_START,
+ .end = LOONGSON_PCI_MEM_END,
+ .flags = IORESOURCE_MEM,
+};
+
+static struct resource loongson_pci_io_resource = {
+ .name = "pci io space",
+ .start = LOONGSON_PCI_IO_START,
+ .end = IO_SPACE_LIMIT,
+ .flags = IORESOURCE_IO,
+};
+
+static struct pci_controller loongson_pci_controller = {
+ .pci_ops = &bonito64_pci_ops,
+ .io_resource = &loongson_pci_io_resource,
+ .mem_resource = &loongson_pci_mem_resource,
+ .mem_offset = 0x00000000UL,
+ .io_offset = 0x00000000UL,
+};
+
+static void __init setup_pcimap(void)
+{
+ /*
+ * local to PCI mapping for CPU accessing PCI space
+ * CPU address space [256M,448M] is window for accessing pci space
+ * we set pcimap_lo[0,1,2] to map it to pci space[0M,64M], [320M,448M]
+ *
+ * pcimap: PCI_MAP2 PCI_Mem_Lo2 PCI_Mem_Lo1 PCI_Mem_Lo0
+ * [<2G] [384M,448M] [320M,384M] [0M,64M]
+ */
+ BONITO_PCIMAP = BONITO_PCIMAP_PCIMAP_2 |
+ BONITO_PCIMAP_WIN(2, BONITO_PCILO2_BASE) |
+ BONITO_PCIMAP_WIN(1, BONITO_PCILO1_BASE) |
+ BONITO_PCIMAP_WIN(0, 0);
+
+ /*
+ * PCI-DMA to local mapping: [2G,2G+256M] -> [0M,256M]
+ */
+ BONITO_PCIBASE0 = 0x80000000ul; /* base: 2G -> mmap: 0M */
+ /* size: 256M, burst transmission, pre-fetch enable, 64bit */
+ LOONGSON_PCI_HIT0_SEL_L = 0xc000000cul;
+ LOONGSON_PCI_HIT0_SEL_H = 0xfffffffful;
+ LOONGSON_PCI_HIT1_SEL_L = 0x00000006ul; /* set this BAR as invalid */
+ LOONGSON_PCI_HIT1_SEL_H = 0x00000000ul;
+ LOONGSON_PCI_HIT2_SEL_L = 0x00000006ul; /* set this BAR as invalid */
+ LOONGSON_PCI_HIT2_SEL_H = 0x00000000ul;
+
+ /* avoid deadlock of PCI reading/writing lock operation */
+ LOONGSON_PCI_ISR4C = 0xd2000001ul;
+
+ /* can not change gnt to break pci transfer when device's gnt not
+ deassert for some broken device */
+ LOONGSON_PXARB_CFG = 0x00fe0105ul;
+}
+
+static int __init pcibios_init(void)
+{
+ setup_pcimap();
+
+ loongson_pci_controller.io_map_base = mips_io_port_base;
+
+ register_pci_controller(&loongson_pci_controller);
+
+ return 0;
+}
+
+arch_initcall(pcibios_init);
diff --git a/arch/mips/loongson/common/reset.c b/arch/mips/loongson/common/reset.c
new file mode 100644
index 0000000..8f67c00
--- /dev/null
+++ b/arch/mips/loongson/common/reset.c
@@ -0,0 +1,39 @@
+/*
+ * 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.
+ *
+ * Copyright (C) 2007 Lemote, Inc. & Institute of Computing Technology
+ * Author: Fuxin Zhang, zhangfx@...ote.com
+ * Copyright (C) 2009 Lemote, Inc. & Institute of Computing Technology
+ * Author: Zhangjin Wu, wuzj@...ote.com
+ */
+#include <linux/pm.h>
+
+#include <asm/reboot.h>
+
+#include <loongson.h>
+
+static void loongson_restart(char *command)
+{
+ /* do preparation for reboot */
+ mach_prepare_reboot();
+
+ /* reboot via jumping to boot base address */
+ ((void (*)(void))ioremap_nocache(BONITO_BOOT_BASE, 4)) ();
+}
+
+static void loongson_halt(void)
+{
+ mach_prepare_shutdown();
+ while (1)
+ ;
+}
+
+void mips_reboot_setup(void)
+{
+ _machine_restart = loongson_restart;
+ _machine_halt = loongson_halt;
+ pm_power_off = loongson_halt;
+}
diff --git a/arch/mips/loongson/common/setup.c b/arch/mips/loongson/common/setup.c
new file mode 100644
index 0000000..aaa070c
--- /dev/null
+++ b/arch/mips/loongson/common/setup.c
@@ -0,0 +1,60 @@
+/*
+ * 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/module.h>
+
+#include <asm/wbflush.h>
+
+#include <loongson.h>
+
+#ifdef CONFIG_VT
+#include <linux/console.h>
+#include <linux/screen_info.h>
+#endif
+
+void (*__wbflush)(void);
+EXPORT_SYMBOL(__wbflush);
+
+static void wbflush_loongson(void)
+{
+ asm(".set\tpush\n\t"
+ ".set\tnoreorder\n\t"
+ ".set mips3\n\t"
+ "sync\n\t"
+ "nop\n\t"
+ ".set\tpop\n\t"
+ ".set mips0\n\t");
+}
+
+void __init plat_mem_setup(void)
+{
+ mips_reboot_setup();
+
+ __wbflush = wbflush_loongson;
+
+#ifdef CONFIG_VT
+#if defined(CONFIG_VGA_CONSOLE)
+ conswitchp = &vga_con;
+
+ screen_info = (struct screen_info) {
+ 0, 25, /* orig-x, orig-y */
+ 0, /* unused */
+ 0, /* orig-video-page */
+ 0, /* orig-video-mode */
+ 80, /* orig-video-cols */
+ 0, 0, 0, /* ega_ax, ega_bx, ega_cx */
+ 25, /* orig-video-lines */
+ VIDEO_TYPE_VGAC, /* orig-video-isVGA */
+ 16 /* orig-video-points */
+ };
+#elif defined(CONFIG_DUMMY_CONSOLE)
+ conswitchp = &dummy_con;
+#endif
+#endif
+}
diff --git a/arch/mips/loongson/common/time.c b/arch/mips/loongson/common/time.c
new file mode 100644
index 0000000..b13d171
--- /dev/null
+++ b/arch/mips/loongson/common/time.c
@@ -0,0 +1,27 @@
+/*
+ * Copyright (C) 2007 Lemote, Inc. & Institute of Computing Technology
+ * Author: Fuxin Zhang, zhangfx@...ote.com
+ *
+ * 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 <asm/mc146818-time.h>
+#include <asm/time.h>
+
+#include <loongson.h>
+
+void __init plat_time_init(void)
+{
+ /* setup mips r4k timer */
+ mips_hpt_frequency = cpu_clock_freq / 2;
+}
+
+unsigned long read_persistent_clock(void)
+{
+ return mc146818_get_cmos_time();
+}
diff --git a/arch/mips/loongson/fuloong-2e/Makefile b/arch/mips/loongson/fuloong-2e/Makefile
index feb1d6b..96e45c1 100644
--- a/arch/mips/loongson/fuloong-2e/Makefile
+++ b/arch/mips/loongson/fuloong-2e/Makefile
@@ -2,12 +2,6 @@
# Makefile for Lemote Fuloong2e mini-PC board.
#
-obj-y += setup.o init.o reset.o irq.o pci.o bonito-irq.o mem.o \
- env.o cmdline.o time.o machtype.o
-
-#
-# Early printk support
-#
-obj-$(CONFIG_EARLY_PRINTK) += early_printk.o
+obj-y += irq.o reset.o machtype.o
EXTRA_CFLAGS += -Werror
diff --git a/arch/mips/loongson/fuloong-2e/bonito-irq.c b/arch/mips/loongson/fuloong-2e/bonito-irq.c
deleted file mode 100644
index 3e31e7a..0000000
--- a/arch/mips/loongson/fuloong-2e/bonito-irq.c
+++ /dev/null
@@ -1,51 +0,0 @@
-/*
- * Copyright 2001 MontaVista Software Inc.
- * Author: Jun Sun, jsun@...sta.com or jsun@...sun.net
- * Copyright (C) 2000, 2001 Ralf Baechle (ralf@....org)
- *
- * 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>
-
-static inline void bonito_irq_enable(unsigned int irq)
-{
- BONITO_INTENSET = (1 << (irq - BONITO_IRQ_BASE));
- mmiowb();
-}
-
-static inline void bonito_irq_disable(unsigned int irq)
-{
- BONITO_INTENCLR = (1 << (irq - BONITO_IRQ_BASE));
- mmiowb();
-}
-
-static struct irq_chip bonito_irq_type = {
- .name = "bonito_irq",
- .ack = bonito_irq_disable,
- .mask = bonito_irq_disable,
- .mask_ack = bonito_irq_disable,
- .unmask = bonito_irq_enable,
-};
-
-static struct irqaction dma_timeout_irqaction = {
- .handler = no_action,
- .name = "dma_timeout",
-};
-
-void bonito_irq_init(void)
-{
- u32 i;
-
- for (i = BONITO_IRQ_BASE; i < BONITO_IRQ_BASE + 32; i++)
- set_irq_chip_and_handler(i, &bonito_irq_type, handle_level_irq);
-
- setup_irq(BONITO_IRQ_BASE + 10, &dma_timeout_irqaction);
-}
diff --git a/arch/mips/loongson/fuloong-2e/cmdline.c b/arch/mips/loongson/fuloong-2e/cmdline.c
deleted file mode 100644
index 75f1b24..0000000
--- a/arch/mips/loongson/fuloong-2e/cmdline.c
+++ /dev/null
@@ -1,52 +0,0 @@
-/*
- * Based on Ocelot Linux port, which is
- * Copyright 2001 MontaVista Software Inc.
- * Author: jsun@...sta.com or jsun@...sun.net
- *
- * Copyright 2003 ICT CAS
- * Author: Michael Guo <guoyi@....ac.cn>
- *
- * Copyright (C) 2007 Lemote Inc. & Insititute of Computing Technology
- * Author: Fuxin Zhang, zhangfx@...ote.com
- *
- * 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 <asm/bootinfo.h>
-
-#include <loongson.h>
-
-int prom_argc;
-/* pmon passes arguments in 32bit pointers */
-int *_prom_argv;
-
-void __init prom_init_cmdline(void)
-{
- int i;
- long l;
-
- /* firmware arguments are initialized in head.S */
- prom_argc = fw_arg0;
- _prom_argv = (int *)fw_arg1;
-
- /* arg[0] is "g", the rest is boot parameters */
- arcs_cmdline[0] = '\0';
- for (i = 1; i < prom_argc; i++) {
- l = (long)_prom_argv[i];
- if (strlen(arcs_cmdline) + strlen(((char *)l) + 1)
- >= sizeof(arcs_cmdline))
- break;
- strcat(arcs_cmdline, ((char *)l));
- strcat(arcs_cmdline, " ");
- }
-
- if ((strstr(arcs_cmdline, "console=")) == NULL)
- strcat(arcs_cmdline, " console=ttyS0,115200");
- if ((strstr(arcs_cmdline, "root=")) == NULL)
- strcat(arcs_cmdline, " root=/dev/hda1");
-}
diff --git a/arch/mips/loongson/fuloong-2e/early_printk.c b/arch/mips/loongson/fuloong-2e/early_printk.c
deleted file mode 100644
index 3e0a6ea..0000000
--- a/arch/mips/loongson/fuloong-2e/early_printk.c
+++ /dev/null
@@ -1,39 +0,0 @@
-/* early printk support
- *
- * 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/serial_reg.h>
-
-#include <loongson.h>
-
-#define UART_BASE (BONITO_PCIIO_BASE + 0x3f8)
-
-#define PORT(base, offset) (u8 *)(base + offset)
-
-static inline unsigned int serial_in(phys_addr_t base, int offset)
-{
- return readb(PORT(base, offset));
-}
-
-static inline void serial_out(phys_addr_t base, int offset, int value)
-{
- writeb(value, PORT(base, offset));
-}
-
-void prom_putchar(char c)
-{
- phys_addr_t uart_base =
- (phys_addr_t) ioremap_nocache(UART_BASE, 8);
-
- while ((serial_in(uart_base, UART_LSR) & UART_LSR_THRE) == 0)
- ;
-
- serial_out(uart_base, UART_TX, c);
-}
diff --git a/arch/mips/loongson/fuloong-2e/env.c b/arch/mips/loongson/fuloong-2e/env.c
deleted file mode 100644
index b9ef503..0000000
--- a/arch/mips/loongson/fuloong-2e/env.c
+++ /dev/null
@@ -1,58 +0,0 @@
-/*
- * Based on Ocelot Linux port, which is
- * Copyright 2001 MontaVista Software Inc.
- * Author: jsun@...sta.com or jsun@...sun.net
- *
- * Copyright 2003 ICT CAS
- * Author: Michael Guo <guoyi@....ac.cn>
- *
- * Copyright (C) 2007 Lemote Inc. & Insititute of Computing Technology
- * Author: Fuxin Zhang, zhangfx@...ote.com
- *
- * 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 <asm/bootinfo.h>
-
-#include <loongson.h>
-
-unsigned long bus_clock, cpu_clock_freq;
-unsigned long memsize, highmemsize;
-
-/* pmon passes arguments in 32bit pointers */
-int *_prom_envp;
-
-#define parse_even_earlier(res, option, p) \
-do { \
- if (strncmp(option, (char *)p, strlen(option)) == 0) \
- strict_strtol((char *)p + strlen(option"="), \
- 10, &res); \
-} while (0)
-
-void __init prom_init_env(void)
-{
- long l;
-
- /* firmware arguments are initialized in head.S */
- _prom_envp = (int *)fw_arg2;
-
- l = (long)*_prom_envp;
- while (l != 0) {
- parse_even_earlier(bus_clock, "busclock", l);
- parse_even_earlier(cpu_clock_freq, "cpuclock", l);
- parse_even_earlier(memsize, "memsize", l);
- parse_even_earlier(highmemsize, "highmemsize", l);
- _prom_envp++;
- l = (long)*_prom_envp;
- }
- if (memsize == 0)
- memsize = 256;
-
- pr_info("busclock=%ld, cpuclock=%ld, memsize=%ld, highmemsize=%ld\n",
- bus_clock, cpu_clock_freq, memsize, highmemsize);
-}
diff --git a/arch/mips/loongson/fuloong-2e/init.c b/arch/mips/loongson/fuloong-2e/init.c
deleted file mode 100644
index 3abe927..0000000
--- a/arch/mips/loongson/fuloong-2e/init.c
+++ /dev/null
@@ -1,30 +0,0 @@
-/*
- * 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/bootmem.h>
-
-#include <asm/bootinfo.h>
-
-#include <loongson.h>
-
-void __init prom_init(void)
-{
- /* init base address of io space */
- set_io_port_base((unsigned long)
- ioremap(BONITO_PCIIO_BASE, BONITO_PCIIO_SIZE));
-
- prom_init_cmdline();
- prom_init_env();
- prom_init_memory();
-}
-
-void __init prom_free_prom_memory(void)
-{
-}
diff --git a/arch/mips/loongson/fuloong-2e/irq.c b/arch/mips/loongson/fuloong-2e/irq.c
index 9585f5a..7888cf6 100644
--- a/arch/mips/loongson/fuloong-2e/irq.c
+++ b/arch/mips/loongson/fuloong-2e/irq.c
@@ -7,39 +7,12 @@
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version.
*/
-#include <linux/delay.h>
#include <linux/interrupt.h>
#include <asm/irq_cpu.h>
#include <asm/i8259.h>
#include <loongson.h>
-/*
- * the first level int-handler will jump here if it is a bonito irq
- */
-static void bonito_irqdispatch(void)
-{
- u32 int_status;
- int i;
-
- /* workaround the IO dma problem: let cpu looping to allow DMA finish */
- int_status = BONITO_INTISR;
- if (int_status & (1 << 10)) {
- while (int_status & (1 << 10)) {
- udelay(1);
- int_status = BONITO_INTISR;
- }
- }
-
- /* Get pending sources, masked by current enables */
- int_status = BONITO_INTISR & BONITO_INTEN;
-
- if (int_status != 0) {
- i = __ffs(int_status);
- int_status &= ~(1 << i);
- do_IRQ(BONITO_IRQ_BASE + i);
- }
-}
static void i8259_irqdispatch(void)
{
@@ -52,10 +25,8 @@ static void i8259_irqdispatch(void)
spurious_interrupt();
}
-asmlinkage void plat_irq_dispatch(void)
+asmlinkage void mach_irq_dispatch(unsigned int pending)
{
- unsigned int pending = read_c0_cause() & read_c0_status() & ST0_IM;
-
if (pending & CAUSEF_IP7)
do_IRQ(MIPS_CPU_IRQ_BASE + 7);
else if (pending & CAUSEF_IP6) /* perf counter loverflow */
@@ -73,26 +44,15 @@ static struct irqaction cascade_irqaction = {
.name = "cascade",
};
-void __init arch_init_irq(void)
+void __init set_irq_trigger_mode(void)
{
- /*
- * Clear all of the interrupts while we change the able around a bit.
- * int-handler is not on bootstrap
- */
- clear_c0_status(ST0_IM | ST0_BEV);
- local_irq_disable();
-
/* most bonito irq should be level triggered */
BONITO_INTEDGE = BONITO_ICU_SYSTEMERR | BONITO_ICU_MASTERERR |
- BONITO_ICU_RETRYERR | BONITO_ICU_MBOXES;
- BONITO_INTSTEER = 0;
-
- /*
- * Mask out all interrupt by writing "1" to all bit position in
- * the interrupt reset reg.
- */
- BONITO_INTENCLR = ~0;
+ BONITO_ICU_RETRYERR | BONITO_ICU_MBOXES;
+}
+void __init mach_init_irq(void)
+{
/* init all controller
* 0-15 ------> i8259 interrupt
* 16-23 ------> mips cpu interrupt
diff --git a/arch/mips/loongson/fuloong-2e/machtype.c b/arch/mips/loongson/fuloong-2e/machtype.c
deleted file mode 100644
index e03aa0d..0000000
--- a/arch/mips/loongson/fuloong-2e/machtype.c
+++ /dev/null
@@ -1,15 +0,0 @@
-/*
- * 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.
- */
-
-const char *get_system_type(void)
-{
- return "lemote-fuloong-2e-box";
-}
-
diff --git a/arch/mips/loongson/fuloong-2e/mem.c b/arch/mips/loongson/fuloong-2e/mem.c
deleted file mode 100644
index 6a7feb1..0000000
--- a/arch/mips/loongson/fuloong-2e/mem.c
+++ /dev/null
@@ -1,36 +0,0 @@
-/*
- * 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/fs.h>
-#include <linux/fcntl.h>
-#include <linux/mm.h>
-
-#include <asm/bootinfo.h>
-
-#include <loongson.h>
-
-void __init prom_init_memory(void)
-{
- add_memory_region(0x0, (memsize << 20), BOOT_MEM_RAM);
-#ifdef CONFIG_64BIT
- if (highmemsize > 0)
- add_memory_region(0x20000000, highmemsize << 20, BOOT_MEM_RAM);
-#endif /* CONFIG_64BIT */
-}
-
-/* override of arch/mips/mm/cache.c: __uncached_access */
-int __uncached_access(struct file *file, unsigned long addr)
-{
- if (file->f_flags & O_SYNC)
- return 1;
-
- /*
- * On the Lemote Loongson 2e system, the peripheral registers
- * reside between 0x1000:0000 and 0x2000:0000.
- */
- return addr >= __pa(high_memory) ||
- ((addr >= 0x10000000) && (addr < 0x20000000));
-}
diff --git a/arch/mips/loongson/fuloong-2e/pci.c b/arch/mips/loongson/fuloong-2e/pci.c
deleted file mode 100644
index 9812c30..0000000
--- a/arch/mips/loongson/fuloong-2e/pci.c
+++ /dev/null
@@ -1,83 +0,0 @@
-/*
- * 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/pci.h>
-
-#include <pci.h>
-#include <loongson.h>
-
-static struct resource loongson2e_pci_mem_resource = {
- .name = "LOONGSON2E PCI MEM",
- .start = LOONGSON2E_PCI_MEM_START,
- .end = LOONGSON2E_PCI_MEM_END,
- .flags = IORESOURCE_MEM,
-};
-
-static struct resource loongson2e_pci_io_resource = {
- .name = "LOONGSON2E PCI IO MEM",
- .start = LOONGSON2E_PCI_IO_START,
- .end = IO_SPACE_LIMIT,
- .flags = IORESOURCE_IO,
-};
-
-static struct pci_controller loongson2e_pci_controller = {
- .pci_ops = &bonito64_pci_ops,
- .io_resource = &loongson2e_pci_io_resource,
- .mem_resource = &loongson2e_pci_mem_resource,
- .mem_offset = 0x00000000UL,
- .io_offset = 0x00000000UL,
-};
-
-static void __init setup_pcimap(void)
-{
- /*
- * local to PCI mapping for CPU accessing PCI space
- * CPU address space [256M,448M] is window for accessing pci space
- * we set pcimap_lo[0,1,2] to map it to pci space[0M,64M], [320M,448M]
- *
- * pcimap: PCI_MAP2 PCI_Mem_Lo2 PCI_Mem_Lo1 PCI_Mem_Lo0
- * [<2G] [384M,448M] [320M,384M] [0M,64M]
- */
- BONITO_PCIMAP = BONITO_PCIMAP_PCIMAP_2 |
- BONITO_PCIMAP_WIN(2, BONITO_PCILO2_BASE) |
- BONITO_PCIMAP_WIN(1, BONITO_PCILO1_BASE) |
- BONITO_PCIMAP_WIN(0, 0);
-
- /*
- * PCI-DMA to local mapping: [2G,2G+256M] -> [0M,256M]
- */
- BONITO_PCIBASE0 = 0x80000000ul; /* base: 2G -> mmap: 0M */
- /* size: 256M, burst transmission, pre-fetch enable, 64bit */
- LOONGSON_PCI_HIT0_SEL_L = 0xc000000cul;
- LOONGSON_PCI_HIT0_SEL_H = 0xfffffffful;
- LOONGSON_PCI_HIT1_SEL_L = 0x00000006ul; /* set this BAR as invalid */
- LOONGSON_PCI_HIT1_SEL_H = 0x00000000ul;
- LOONGSON_PCI_HIT2_SEL_L = 0x00000006ul; /* set this BAR as invalid */
- LOONGSON_PCI_HIT2_SEL_H = 0x00000000ul;
-
- /* avoid deadlock of PCI reading/writing lock operation */
- LOONGSON_PCI_ISR4C = 0xd2000001ul;
-
- /* can not change gnt to break pci transfer when device's gnt not
- deassert for some broken device */
- LOONGSON_PXARB_CFG = 0x00fe0105ul;
-}
-
-static int __init pcibios_init(void)
-{
- setup_pcimap();
-
- loongson2e_pci_controller.io_map_base = mips_io_port_base;
-
- register_pci_controller(&loongson2e_pci_controller);
-
- return 0;
-}
-
-arch_initcall(pcibios_init);
diff --git a/arch/mips/loongson/fuloong-2e/reset.c b/arch/mips/loongson/fuloong-2e/reset.c
index d89c9e4..17f8237 100644
--- a/arch/mips/loongson/fuloong-2e/reset.c
+++ b/arch/mips/loongson/fuloong-2e/reset.c
@@ -1,39 +1,24 @@
-/*
+/* 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.
- *
- * Copyright (C) 2007 Lemote, Inc. & Institute of Computing Technology
- * Author: Fuxin Zhang, zhangfx@...ote.com
- * Copyright (C) 2009 Lemote, Inc. & Institute of Computing Technology
- * Author: Zhangjin Wu, wuzj@...ote.com
*/
-#include <linux/pm.h>
-
-#include <asm/reboot.h>
#include <loongson.h>
-static void loongson2e_restart(char *command)
+void mach_prepare_reboot(void)
{
- /* do preparation for reboot */
BONITO_BONGENCFG &= ~(1 << 2);
BONITO_BONGENCFG |= (1 << 2);
-
- /* reboot via jumping to boot base address */
- ((void (*)(void))ioremap_nocache(BONITO_BOOT_BASE, 4)) ();
}
-static void loongson2e_halt(void)
+void mach_prepare_shutdown(void)
{
- while (1)
- ;
}
-void mips_reboot_setup(void)
-{
- _machine_restart = loongson2e_restart;
- _machine_halt = loongson2e_halt;
- pm_power_off = loongson2e_halt;
-}
diff --git a/arch/mips/loongson/fuloong-2e/setup.c b/arch/mips/loongson/fuloong-2e/setup.c
deleted file mode 100644
index 655695c..0000000
--- a/arch/mips/loongson/fuloong-2e/setup.c
+++ /dev/null
@@ -1,60 +0,0 @@
-/*
- * 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/module.h>
-
-#include <asm/wbflush.h>
-
-#include <loongson.h>
-
-#ifdef CONFIG_VT
-#include <linux/console.h>
-#include <linux/screen_info.h>
-#endif
-
-void (*__wbflush)(void);
-EXPORT_SYMBOL(__wbflush);
-
-static void wbflush_loongson2e(void)
-{
- asm(".set\tpush\n\t"
- ".set\tnoreorder\n\t"
- ".set mips3\n\t"
- "sync\n\t"
- "nop\n\t"
- ".set\tpop\n\t"
- ".set mips0\n\t");
-}
-
-void __init plat_mem_setup(void)
-{
- mips_reboot_setup();
-
- __wbflush = wbflush_loongson2e;
-
-#ifdef CONFIG_VT
-#if defined(CONFIG_VGA_CONSOLE)
- conswitchp = &vga_con;
-
- screen_info = (struct screen_info) {
- 0, 25, /* orig-x, orig-y */
- 0, /* unused */
- 0, /* orig-video-page */
- 0, /* orig-video-mode */
- 80, /* orig-video-cols */
- 0, 0, 0, /* ega_ax, ega_bx, ega_cx */
- 25, /* orig-video-lines */
- VIDEO_TYPE_VGAC, /* orig-video-isVGA */
- 16 /* orig-video-points */
- };
-#elif defined(CONFIG_DUMMY_CONSOLE)
- conswitchp = &dummy_con;
-#endif
-#endif
-}
diff --git a/arch/mips/loongson/fuloong-2e/time.c b/arch/mips/loongson/fuloong-2e/time.c
deleted file mode 100644
index b13d171..0000000
--- a/arch/mips/loongson/fuloong-2e/time.c
+++ /dev/null
@@ -1,27 +0,0 @@
-/*
- * Copyright (C) 2007 Lemote, Inc. & Institute of Computing Technology
- * Author: Fuxin Zhang, zhangfx@...ote.com
- *
- * 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 <asm/mc146818-time.h>
-#include <asm/time.h>
-
-#include <loongson.h>
-
-void __init plat_time_init(void)
-{
- /* setup mips r4k timer */
- mips_hpt_frequency = cpu_clock_freq / 2;
-}
-
-unsigned long read_persistent_clock(void)
-{
- return mc146818_get_cmos_time();
-}
--
1.6.2.1
--
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