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Message-Id: <1299596817-19879-2-git-send-email-jamie@jamieiles.com>
Date: Tue, 8 Mar 2011 15:06:53 +0000
From: Jamie Iles <jamie@...ieiles.com>
To: linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Cc: Jamie Iles <jamie@...ieiles.com>
Subject: [PATCHv6 1/5] picoxcell: support for Picochip picoXcell SoC
picoXcell is a family of femtocell SoC devices from Picochip [1] with an
ARM subsystem. The devices have an ARM1176JZ-S core and a DSP processor
array. Currently there are two sub families - PC3X2 and PC3X3. The
latter includes extra power and performance control along with extra
peripherals.
This initial patch adds the hardware definitions and a framework for
adding device variants.
v2:
- Define VMALLOC_END as a fixed address rather than relative to
PAGE_OFFSET
- Reduce the number of static IO mappings
- Put the picoXcell entry in the correct place in
arch/arm/Kconfig
v3:
- Incorporate feedback from RMK
- Refactor static IO mappings into io.c and include arch
specific ioremap and iounmap to reuse static mappings.
- Tell Linux about the TCMs and the onchip SRAM.
- Switch to __raw_ io accessors where possible. Note the AXI2CFG
requires a strongly ordered protocol so retains ordered
accessors.
v4:
- Remove redundant __init declarations and add a cpu_relax() to
the AXI2CFG read polling
- Allow soc variants to register variant specific devices
v5:
- Remove all of the sysdev and AXI2Cfg configuration stuff to
reduce it to the bare minimum to boot on all devices.
v6:
- Move the 32-bit UART accesses for DEBUG_LL into the machine
debug-macros.S and remove the hardcoded addresses.
1. http://www.picochip.com
Signed-off-by: Jamie Iles <jamie@...ieiles.com>
---
arch/arm/Kconfig | 13 ++
arch/arm/Makefile | 1 +
arch/arm/mach-picoxcell/Kconfig | 2 +
arch/arm/mach-picoxcell/Makefile | 1 +
arch/arm/mach-picoxcell/Makefile.boot | 3 +
arch/arm/mach-picoxcell/axi2cfg.c | 36 ++++++
arch/arm/mach-picoxcell/include/mach/debug-macro.S | 39 ++++++
arch/arm/mach-picoxcell/include/mach/entry-macro.S | 19 +++
arch/arm/mach-picoxcell/include/mach/hardware.h | 29 +++++
arch/arm/mach-picoxcell/include/mach/io.h | 38 ++++++
arch/arm/mach-picoxcell/include/mach/irqs.h | 89 ++++++++++++++
arch/arm/mach-picoxcell/include/mach/memory.h | 27 +++++
.../include/mach/picoxcell/axi2cfg.h | 122 ++++++++++++++++++++
.../mach-picoxcell/include/mach/picoxcell/gpio.h | 48 ++++++++
.../include/mach/picoxcell/picoxcell.h | 62 ++++++++++
.../mach-picoxcell/include/mach/picoxcell/timer.h | 37 ++++++
.../mach-picoxcell/include/mach/picoxcell/wdog.h | 43 +++++++
arch/arm/mach-picoxcell/include/mach/platform.h | 27 +++++
arch/arm/mach-picoxcell/include/mach/system.h | 51 ++++++++
arch/arm/mach-picoxcell/include/mach/timex.h | 26 ++++
arch/arm/mach-picoxcell/include/mach/uncompress.h | 60 ++++++++++
arch/arm/mach-picoxcell/include/mach/vmalloc.h | 18 +++
arch/arm/mach-picoxcell/io.c | 49 ++++++++
arch/arm/mach-picoxcell/picoxcell_core.c | 105 +++++++++++++++++
arch/arm/mach-picoxcell/picoxcell_core.h | 22 ++++
arch/arm/mach-picoxcell/soc.h | 32 +++++
26 files changed, 999 insertions(+), 0 deletions(-)
create mode 100644 arch/arm/mach-picoxcell/Kconfig
create mode 100644 arch/arm/mach-picoxcell/Makefile
create mode 100644 arch/arm/mach-picoxcell/Makefile.boot
create mode 100644 arch/arm/mach-picoxcell/axi2cfg.c
create mode 100644 arch/arm/mach-picoxcell/include/mach/debug-macro.S
create mode 100644 arch/arm/mach-picoxcell/include/mach/entry-macro.S
create mode 100644 arch/arm/mach-picoxcell/include/mach/hardware.h
create mode 100644 arch/arm/mach-picoxcell/include/mach/io.h
create mode 100644 arch/arm/mach-picoxcell/include/mach/irqs.h
create mode 100644 arch/arm/mach-picoxcell/include/mach/memory.h
create mode 100644 arch/arm/mach-picoxcell/include/mach/picoxcell/axi2cfg.h
create mode 100644 arch/arm/mach-picoxcell/include/mach/picoxcell/gpio.h
create mode 100644 arch/arm/mach-picoxcell/include/mach/picoxcell/picoxcell.h
create mode 100644 arch/arm/mach-picoxcell/include/mach/picoxcell/timer.h
create mode 100644 arch/arm/mach-picoxcell/include/mach/picoxcell/wdog.h
create mode 100644 arch/arm/mach-picoxcell/include/mach/platform.h
create mode 100644 arch/arm/mach-picoxcell/include/mach/system.h
create mode 100644 arch/arm/mach-picoxcell/include/mach/timex.h
create mode 100644 arch/arm/mach-picoxcell/include/mach/uncompress.h
create mode 100644 arch/arm/mach-picoxcell/include/mach/vmalloc.h
create mode 100644 arch/arm/mach-picoxcell/io.c
create mode 100644 arch/arm/mach-picoxcell/picoxcell_core.c
create mode 100644 arch/arm/mach-picoxcell/picoxcell_core.h
create mode 100644 arch/arm/mach-picoxcell/soc.h
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 30d8a63..75ff454 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -605,6 +605,17 @@ config ARCH_PNX4008
help
This enables support for Philips PNX4008 mobile platform.
+config ARCH_PICOXCELL
+ bool "Picochip picoXcell"
+ select ARM_VIC
+ select GENERIC_CLOCKEVENTS
+ select HAVE_SCHED_CLOCK
+ select CPU_V6K
+ select HAVE_TCM
+ help
+ This enables support for systems based on the Picochip picoXcell
+ family of Femtocell devices.
+
config ARCH_PXA
bool "PXA2xx/PXA3xx-based"
depends on MMU
@@ -955,6 +966,8 @@ source "arch/arm/mach-omap2/Kconfig"
source "arch/arm/mach-orion5x/Kconfig"
+source "arch/arm/mach-picoxcell/Kconfig"
+
source "arch/arm/mach-pxa/Kconfig"
source "arch/arm/plat-pxa/Kconfig"
diff --git a/arch/arm/Makefile b/arch/arm/Makefile
index d6e6206..864f00d 100644
--- a/arch/arm/Makefile
+++ b/arch/arm/Makefile
@@ -166,6 +166,7 @@ machine-$(CONFIG_ARCH_OMAP2) := omap2
machine-$(CONFIG_ARCH_OMAP3) := omap2
machine-$(CONFIG_ARCH_OMAP4) := omap2
machine-$(CONFIG_ARCH_ORION5X) := orion5x
+machine-$(CONFIG_ARCH_PICOXCELL) := picoxcell
machine-$(CONFIG_ARCH_PNX4008) := pnx4008
machine-$(CONFIG_ARCH_PXA) := pxa
machine-$(CONFIG_ARCH_REALVIEW) := realview
diff --git a/arch/arm/mach-picoxcell/Kconfig b/arch/arm/mach-picoxcell/Kconfig
new file mode 100644
index 0000000..7b74a45
--- /dev/null
+++ b/arch/arm/mach-picoxcell/Kconfig
@@ -0,0 +1,2 @@
+if ARCH_PICOXCELL
+endif
diff --git a/arch/arm/mach-picoxcell/Makefile b/arch/arm/mach-picoxcell/Makefile
new file mode 100644
index 0000000..6afe388
--- /dev/null
+++ b/arch/arm/mach-picoxcell/Makefile
@@ -0,0 +1 @@
+obj-y := picoxcell_core.o io.o axi2cfg.o
diff --git a/arch/arm/mach-picoxcell/Makefile.boot b/arch/arm/mach-picoxcell/Makefile.boot
new file mode 100644
index 0000000..67039c3
--- /dev/null
+++ b/arch/arm/mach-picoxcell/Makefile.boot
@@ -0,0 +1,3 @@
+ zreladdr-y := 0x00008000
+params_phys-y := 0x00000100
+initrd_phys-y := 0x00800000
diff --git a/arch/arm/mach-picoxcell/axi2cfg.c b/arch/arm/mach-picoxcell/axi2cfg.c
new file mode 100644
index 0000000..6bb4014
--- /dev/null
+++ b/arch/arm/mach-picoxcell/axi2cfg.c
@@ -0,0 +1,36 @@
+/*
+ * Copyright (c) 2010 Picochip Ltd., Jamie Iles
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * All enquiries to support@...ochip.com
+ *
+ * This file implements functions for using the axi2cfg to configure and debug
+ * picoArray systems providing configuration bus access over the axi2cfg.
+ */
+#include <linux/errno.h>
+#include <linux/io.h>
+#include <linux/module.h>
+#include <linux/spinlock.h>
+
+#include <mach/hardware.h>
+
+static void __iomem *axi2cfg;
+
+unsigned long axi2cfg_readl(unsigned long offs)
+{
+ return readl(axi2cfg + offs);
+}
+
+void axi2cfg_writel(unsigned long val, unsigned long offs)
+{
+ writel(val, axi2cfg + offs);
+}
+
+void __init axi2cfg_init(void)
+{
+ axi2cfg = ioremap(PICOXCELL_AXI2CFG_BASE, 0x300);
+ BUG_ON(!axi2cfg);
+}
diff --git a/arch/arm/mach-picoxcell/include/mach/debug-macro.S b/arch/arm/mach-picoxcell/include/mach/debug-macro.S
new file mode 100644
index 0000000..da41fb4
--- /dev/null
+++ b/arch/arm/mach-picoxcell/include/mach/debug-macro.S
@@ -0,0 +1,39 @@
+/*
+ * Copyright (c) 2010 Picochip Ltd., Jamie Iles
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * Derived from arch/arm/mach-davinci/include/mach/debug-macro.S to use 32-bit
+ * accesses to the 8250.
+ */
+#include <linux/serial_reg.h>
+#include <mach/hardware.h>
+#include <mach/io.h>
+
+#define UART_SHIFT 2
+
+ .macro addruart, rp, rv
+ ldr \rv, =PHYS_TO_IO(PICOXCELL_UART1_BASE)
+ ldr \rp, =PICOXCELL_UART1_BASE
+ .endm
+
+ .macro senduart,rd,rx
+ str \rd, [\rx, #UART_TX << UART_SHIFT]
+ .endm
+
+ .macro busyuart,rd,rx
+1002: ldr \rd, [\rx, #UART_LSR << UART_SHIFT]
+ and \rd, \rd, #UART_LSR_TEMT | UART_LSR_THRE
+ teq \rd, #UART_LSR_TEMT | UART_LSR_THRE
+ bne 1002b
+ .endm
+
+ .macro waituart,rd,rx
+#ifdef FLOW_CONTROL
+1001: ldr \rd, [\rx, #UART_MSR << UART_SHIFT]
+ tst \rd, #UART_MSR_CTS
+ beq 1001b
+#endif
+ .endm
diff --git a/arch/arm/mach-picoxcell/include/mach/entry-macro.S b/arch/arm/mach-picoxcell/include/mach/entry-macro.S
new file mode 100644
index 0000000..4dcda96
--- /dev/null
+++ b/arch/arm/mach-picoxcell/include/mach/entry-macro.S
@@ -0,0 +1,19 @@
+/*
+ * entry-macro.S
+ *
+ * Copyright (c) 2010 Picochip Ltd., Jamie Iles
+ *
+ * Low-level IRQ helper macros for picoXcell platforms
+ *
+ * This file is licensed under the terms of the GNU General Public
+ * License version 2. This program is licensed "as is" without any
+ * warranty of any kind, whether express or implied.
+ */
+#include <mach/hardware.h>
+#include <mach/io.h>
+#include <mach/irqs.h>
+
+#define VA_VIC0 IO_ADDRESS(PICOXCELL_VIC0_BASE)
+#define VA_VIC1 IO_ADDRESS(PICOXCELL_VIC1_BASE)
+
+#include <asm/entry-macro-vic2.S>
diff --git a/arch/arm/mach-picoxcell/include/mach/hardware.h b/arch/arm/mach-picoxcell/include/mach/hardware.h
new file mode 100644
index 0000000..7c203d3
--- /dev/null
+++ b/arch/arm/mach-picoxcell/include/mach/hardware.h
@@ -0,0 +1,29 @@
+/*
+ * Copyright (c) 2010 Picochip Ltd., Jamie Iles
+ *
+ * This file contains the hardware definitions of the picoXcell SoC devices.
+ *
+ * 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.
+ *
+ * This program is distributed in the hope that 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
+ */
+#ifndef __ASM_ARCH_HARDWARE_H
+#define __ASM_ARCH_HARDWARE_H
+
+#include <mach/picoxcell/axi2cfg.h>
+#include <mach/picoxcell/gpio.h>
+#include <mach/picoxcell/picoxcell.h>
+#include <mach/picoxcell/timer.h>
+#include <mach/picoxcell/wdog.h>
+
+#endif
diff --git a/arch/arm/mach-picoxcell/include/mach/io.h b/arch/arm/mach-picoxcell/include/mach/io.h
new file mode 100644
index 0000000..d8f2d76
--- /dev/null
+++ b/arch/arm/mach-picoxcell/include/mach/io.h
@@ -0,0 +1,38 @@
+/*
+ * Copyright (c) 2010 Picochip Ltd., Jamie Iles
+ *
+ * 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.
+ *
+ * This program is distributed in the hope that 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
+ */
+#ifndef __ASM_ARM_ARCH_IO_H
+#define __ASM_ARM_ARCH_IO_H
+
+#define PHYS_TO_IO(x) (((x) & 0x00ffffff) | 0xfe000000)
+
+#ifdef __ASSEMBLY__
+# define IO_ADDRESS(x) PHYS_TO_IO((x))
+#else /* __ASSEMBLY__ */
+# define IO_ADDRESS(x) (void __iomem __force *)(PHYS_TO_IO((x)))
+# define IO_SPACE_LIMIT 0xffffffff
+# define __io(a) __typesafe_io(a)
+# define __mem_pci(a) (a)
+# define __arch_ioremap picoxcell_ioremap
+# define __arch_iounmap picoxcell_iounmap
+
+void __iomem *picoxcell_ioremap(unsigned long phys, size_t size,
+ unsigned int type);
+void picoxcell_iounmap(volatile void __iomem *addr);
+#endif /* __ASSEMBLY__ */
+
+#endif /* __ASM_ARM_ARCH_IO_H */
diff --git a/arch/arm/mach-picoxcell/include/mach/irqs.h b/arch/arm/mach-picoxcell/include/mach/irqs.h
new file mode 100644
index 0000000..0fe84ff
--- /dev/null
+++ b/arch/arm/mach-picoxcell/include/mach/irqs.h
@@ -0,0 +1,89 @@
+/*
+ * Copyright (c) 2010 Picochip Ltd., Jamie Iles
+ *
+ * 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.
+ *
+ * This program is distributed in the hope that 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
+ */
+#ifndef __IRQS_H__
+#define __IRQS_H__
+
+/* VIC0 IRQ Indexes */
+#define IRQ_VIC0_BASE 32
+#define IRQ_EMAC (31 + IRQ_VIC0_BASE)
+#define IRQ_NPMUIRQ (30 + IRQ_VIC0_BASE)
+#define IRQ_NDMAEXTERRIRQ (29 + IRQ_VIC0_BASE)
+#define IRQ_NDMASIRQ (28 + IRQ_VIC0_BASE)
+#define IRQ_NDMAIRQ (27 + IRQ_VIC0_BASE)
+#define IRQ_DMAC2 (26 + IRQ_VIC0_BASE)
+#define IRQ_DMAC1 (25 + IRQ_VIC0_BASE)
+#define IRQ_IPSEC (24 + IRQ_VIC0_BASE)
+#define IRQ_SRTP (23 + IRQ_VIC0_BASE)
+#define IRQ_AES (22 + IRQ_VIC0_BASE)
+#define IRQ_AXI2PICO8 (21 + IRQ_VIC0_BASE)
+#define IRQ_AXI2PICO7 (20 + IRQ_VIC0_BASE)
+#define IRQ_AXI2PICO6 (19 + IRQ_VIC0_BASE)
+#define IRQ_AXI2PICO5 (18 + IRQ_VIC0_BASE)
+#define IRQ_AXI2PICO4 (17 + IRQ_VIC0_BASE)
+#define IRQ_AXI2PICO3 (16 + IRQ_VIC0_BASE)
+#define IRQ_AXI2PICO2 (15 + IRQ_VIC0_BASE)
+#define IRQ_AXI2PICO1 (14 + IRQ_VIC0_BASE)
+#define IRQ_AXI2PICO0 (13 + IRQ_VIC0_BASE)
+#define IRQ_AXI2CFG (12 + IRQ_VIC0_BASE)
+#define IRQ_WDG (11 + IRQ_VIC0_BASE)
+#define IRQ_SSI (10 + IRQ_VIC0_BASE)
+#define IRQ_AXI_RD_ERR (9 + IRQ_VIC0_BASE)
+#define IRQ_AXI_WR_ERR (8 + IRQ_VIC0_BASE)
+#define IRQ_TIMER3 (7 + IRQ_VIC0_BASE)
+#define IRQ_TIMER2 (6 + IRQ_VIC0_BASE)
+#define IRQ_TIMER1 (5 + IRQ_VIC0_BASE)
+#define IRQ_TIMER0 (4 + IRQ_VIC0_BASE)
+#define IRQ_COMMTX (3 + IRQ_VIC0_BASE)
+#define IRQ_COMMRX (2 + IRQ_VIC0_BASE)
+#define IRQ_SWI (1 + IRQ_VIC0_BASE)
+
+/* VIC1 IRQ Indexes */
+#define IRQ_VIC1_BASE 0
+#define IRQ_UART1 (10 + IRQ_VIC1_BASE)
+#define IRQ_UART2 (9 + IRQ_VIC1_BASE)
+#define IRQ_RTC (8 + IRQ_VIC1_BASE)
+#define __IRQ_GPIO7 (7 + IRQ_VIC1_BASE)
+#define __IRQ_GPIO6 (6 + IRQ_VIC1_BASE)
+#define __IRQ_GPIO5 (5 + IRQ_VIC1_BASE)
+#define __IRQ_GPIO4 (4 + IRQ_VIC1_BASE)
+#define __IRQ_GPIO3 (3 + IRQ_VIC1_BASE)
+#define __IRQ_GPIO2 (2 + IRQ_VIC1_BASE)
+#define __IRQ_GPIO1 (1 + IRQ_VIC1_BASE)
+#define __IRQ_GPIO0 (0 + IRQ_VIC1_BASE)
+
+/*
+ * Virtual GPIO interrupts.
+ *
+ * We want to enable/disable interrupts for the GPIO pins through the GPIO
+ * block itself. To do this we install a chained handler. If a user requests
+ * one of the __IRQ_GPIOn interrupts then the GPIO block won't get configured.
+ * We provide these interrupts below as virtual ones that will configure the
+ * GPIO block and enable the source in the VIC.
+ */
+#define IRQ_GPIO7 71
+#define IRQ_GPIO6 70
+#define IRQ_GPIO5 69
+#define IRQ_GPIO4 68
+#define IRQ_GPIO3 67
+#define IRQ_GPIO2 66
+#define IRQ_GPIO1 65
+#define IRQ_GPIO0 64
+
+#define NR_IRQS 72
+
+#endif /* __IRQS_H__ */
diff --git a/arch/arm/mach-picoxcell/include/mach/memory.h b/arch/arm/mach-picoxcell/include/mach/memory.h
new file mode 100644
index 0000000..c0f6077
--- /dev/null
+++ b/arch/arm/mach-picoxcell/include/mach/memory.h
@@ -0,0 +1,27 @@
+/*
+ * Copyright (c) 2010 Picochip Ltd., Jamie Iles
+ *
+ * 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.
+ *
+ * This program is distributed in the hope that 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
+ */
+#ifndef __ASM_ARCH_MEMORY_H
+#define __ASM_ARCH_MEMORY_H
+
+/*
+ * Physical DRAM offset.
+ */
+#define PLAT_PHYS_OFFSET UL(0x00000000)
+
+#endif
+
diff --git a/arch/arm/mach-picoxcell/include/mach/picoxcell/axi2cfg.h b/arch/arm/mach-picoxcell/include/mach/picoxcell/axi2cfg.h
new file mode 100644
index 0000000..94c9800
--- /dev/null
+++ b/arch/arm/mach-picoxcell/include/mach/picoxcell/axi2cfg.h
@@ -0,0 +1,122 @@
+/*
+ * Copyright (c) 2010 Picochip Ltd., Jamie Iles
+ *
+ * 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.
+ *
+ * This program is distributed in the hope that 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
+ */
+
+#ifndef PICOXCELL_AXI2CFG_H
+#define PICOXCELL_AXI2CFG_H
+
+#define AXI2CFG_SYSCFG_REG_OFFSET 0x0000
+#define AXI2CFG_JTAG_ISC_REG_OFFSET 0x0004
+#define AXI2CFG_IRQ_REG_OFFSET 0x0008
+#define AXI2CFG_PURGE_CFG_PORT_REG_OFFSET 0x000C
+#define AXI2CFG_DMA_CFG_REG_OFFSET 0x0010
+#define AXI2CFG_DEVICE_ID_REG_OFFSET 0x0014
+#define AXI2CFG_REVISION_ID_REG_OFFSET 0x0018
+#define AXI2CFG_AXI_ERR_ENABLE_REG_OFFSET 0x001C
+#define AXI2CFG_AXI_ERR_CLEAR_REG_OFFSET 0x0020
+#define AXI2CFG_AXI_ERR_MASK_REG_OFFSET 0x0024
+#define AXI2CFG_AXI_ERR_TEST_REG_OFFSET 0x0028
+#define AXI2CFG_AXI_ERR_RAW_REG_OFFSET 0x002C
+#define AXI2CFG_AXI_ERR_STATE_REG_OFFSET 0x0030
+#define AXI2CFG_CLOCK_GATING_REG_OFFSET 0x0048
+#define AXI2CFG_CONFIG_WRITE_REG_OFFSET 0x0100
+#define AXI2CFG_CONFIG_READ_REG_OFFSET 0x0200
+#define AXI2CFG_DMAC1_CONFIG_REG_OFFSET 0x0300
+
+#define AXI2CFG_SYSCFG_PA_RST_IDX 30
+#define AXI2CFG_SYSCFG_SD_ARM_GPIO_SEL_SZ 8
+#define AXI2CFG_SYSCFG_SD_ARM_GPIO_SEL_HI 23
+#define AXI2CFG_SYSCFG_SD_ARM_GPIO_SEL_LO 16
+#define AXI2CFG_SYSCFG_RW_EBI_CLK_DISABLE_IDX 15
+#define AXI2CFG_SYSCFG_RW_EXCVEC_EN_IDX 14
+#define AXI2CFG_SYSCFG_RW_RMII_EN_IDX 13
+#define AXI2CFG_SYSCFG_RW_REVMII_EN_IDX 12
+#define AXI2CFG_SYSCFG_SSI_EBI_SEL_SZ 4
+#define AXI2CFG_SYSCFG_SSI_EBI_SEL_HI 11
+#define AXI2CFG_SYSCFG_SSI_EBI_SEL_LO 8
+#define AXI2CFG_SYSCFG_FREQ_SYNTH_MUX_IDX 7
+#define AXI2CFG_SYSCFG_MASK_AXI_ERR_IDX 6
+#define AXI2CFG_SYSCFG_RW_REMAP_IDX 5
+#define AXI2CFG_SYSCFG_WDG_PAUSE_IDX 4
+#define AXI2CFG_SYSCFG_CP15DISABLE_IDX 3
+#define AXI2CFG_SYSCFG_DMAC1_CH7_IDX 2
+#define AXI2CFG_SYSCFG_BOOT_MODE_SZ 2
+#define AXI2CFG_SYSCFG_BOOT_MODE_HI 1
+#define AXI2CFG_SYSCFG_BOOT_MODE_LO 0
+
+#define AXI2CFG_SYSCFG_PA_RST_MASK \
+ (1 << AXI2CFG_SYSCFG_PA_RST_IDX)
+#define AXI2CFG_SYSCFG_SD_ARM_GPIO_MASK \
+ (((1 << AXI2CFG_SYSCFG_SD_ARM_GPIO_SEL_SZ) - 1) << \
+ AXI2CFG_SYSCFG_SD_ARM_GPIO_SEL_LO)
+#define AXI2CFG_SYSCFG_RW_EXCVEC_EN_MASK \
+ (1 << AXI2CFG_SYSCFG_RW_EXCVEC_EN_IDX)
+#define AXI2CFG_SYSCFG_RW_RMII_EN_MASK \
+ (1 << AXI2CFG_SYSCFG_RW_RMII_EN_IDX)
+#define AXI2CFG_SYSCFG_RW_REVMII_EN_MASK \
+ (1 << AXI2CFG_SYSCFG_RW_REVMII_EN_IDX)
+#define AXI2CFG_SYSCFG_SSI_EBI_SEL_MASK \
+ (((1 << AXI2CFG_SYSCFG_SSI_EBI_SEL_SZ) - 1) << \
+ AXI2CFG_SYSCFG_SSI_EBI_SEL_LO)
+#define AXI2CFG_SYSCFG_FREQ_SYNTH_MUX_MASK \
+ (1 << AXI2CFG_SYSCFG_FREQ_SYNTH_MUX_IDX)
+#define AXI2CFG_SYSCFG_MASK_AXI_ERR_MASK \
+ (1 << AXI2CFG_SYSCFG_MASK_AXI_ERR_IDX)
+#define AXI2CFG_SYSCFG_RW_REMAP_MASK \
+ (1 << AXI2CFG_SYSCFG_RW_REMAP_IDX)
+#define AXI2CFG_SYSCFG_WDG_PAUSE_MASK \
+ (1 << AXI2CFG_SYSCFG_WDG_PAUSE_IDX)
+#define AXI2CFG_SYSCFG_CP15DISABLE_MASK \
+ (1 << AXI2CFG_SYSCFG_CP15DISABLE_IDX)
+#define AXI2CFG_SYSCFG_DMAC1_CH7_MASK \
+ (1 << AXI2CFG_SYSCFG_DMAC1_CH7_IDX)
+#define AXI2CFG_SYSCFG_BOOT_MODE_MASK \
+ (((1 << AXI2CFG_SYSCFG_BOOT_MODE_SZ) - 1) << \
+ AXI2CFG_SYSCFG_BOOT_MODE_LO)
+
+#define AXI2CFG_AXI_RD_ERR_MASK 0x00000FFF
+#define AXI2CFG_AXI_WR_ERR_MASK 0x00FFF000
+#define AXI2CFG_AXI_ERR_MASK_NONE 0
+#define AXI2CFG_AXI_ERR_ENABLE_ALL 0x00FFFFFF
+
+#ifndef __ASSEMBLY__
+
+/*
+ * axi2cfg_init - initialize the AXI2CFG hardware.
+ */
+extern void axi2cfg_init(void);
+
+/*
+ * axi2cfg_readl - read a register in the axi2cfg.
+ *
+ * Returns the value of the register.
+ *
+ * @offs: the byte offset to read from.
+ */
+extern unsigned long axi2cfg_readl(unsigned long offs);
+
+/*
+ * axi2cfg_writel - write an axi2cfg AXI domain register.
+ *
+ * @val: the value to write.
+ * @offs: the byte offset to write to.
+ */
+extern void axi2cfg_writel(unsigned long val, unsigned long offs);
+
+#endif /* !__ASSEMBLY__ */
+
+#endif /* PICOXCELL_AXI2CFG_H */
diff --git a/arch/arm/mach-picoxcell/include/mach/picoxcell/gpio.h b/arch/arm/mach-picoxcell/include/mach/picoxcell/gpio.h
new file mode 100644
index 0000000..f526271
--- /dev/null
+++ b/arch/arm/mach-picoxcell/include/mach/picoxcell/gpio.h
@@ -0,0 +1,48 @@
+/*
+ * Copyright (c) 2010 Picochip Ltd., Jamie Iles
+ *
+ * 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.
+ *
+ * This program is distributed in the hope that 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
+ */
+
+#ifndef PICOXCELL_GPIO_H
+#define PICOXCELL_GPIO_H
+
+#define GPIO_SW_PORT_A_DR_REG_OFFSET 0x00
+#define GPIO_SW_PORT_A_DDR_REG_OFFSET 0x04
+#define GPIO_SW_PORT_A_CTL_REG_OFFSET 0x08
+#define GPIO_SW_PORT_B_DR_REG_OFFSET 0x0C
+#define GPIO_SW_PORT_B_DDR_REG_OFFSET 0x10
+#define GPIO_SW_PORT_B_CTL_REG_OFFSET 0x14
+#define GPIO_SW_PORT_C_DR_REG_OFFSET 0x18
+#define GPIO_SW_PORT_C_DDR_REG_OFFSET 0x1C
+#define GPIO_SW_PORT_C_CTL_REG_OFFSET 0x20
+#define GPIO_SW_PORT_D_DR_REG_OFFSET 0x24
+#define GPIO_SW_PORT_D_DDR_REG_OFFSET 0x28
+#define GPIO_SW_PORT_D_CTL_REG_OFFSET 0x2C
+
+#define GPIO_INT_EN_REG_OFFSET 0x30
+#define GPIO_INT_MASK_REG_OFFSET 0x34
+#define GPIO_INT_TYPE_LEVEL_REG_OFFSET 0x38
+#define GPIO_INT_POLARITY_REG_OFFSET 0x3c
+
+#define GPIO_INT_STATUS_REG_OFFSET 0x40
+
+#define GPIO_PORT_A_EOI_REG_OFFSET 0x4c
+#define GPIO_EXT_PORT_A_REG_OFFSET 0x50
+#define GPIO_EXT_PORT_B_REG_OFFSET 0x54
+#define GPIO_EXT_PORT_C_REG_OFFSET 0x58
+#define GPIO_EXT_PORT_D_REG_OFFSET 0x5C
+
+#endif /* PICOXCELL_GPIO_H */
diff --git a/arch/arm/mach-picoxcell/include/mach/picoxcell/picoxcell.h b/arch/arm/mach-picoxcell/include/mach/picoxcell/picoxcell.h
new file mode 100644
index 0000000..9691ec0
--- /dev/null
+++ b/arch/arm/mach-picoxcell/include/mach/picoxcell/picoxcell.h
@@ -0,0 +1,62 @@
+/*
+ * Copyright (c) 2010 Picochip Ltd., Jamie Iles
+ *
+ * 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.
+ *
+ * This program is distributed in the hope that 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
+ */
+#ifndef __PICOXCELL_H__
+#define __PICOXCELL_H__
+
+#define BOOT_ROM_BASE 0xFFFF0000
+#define BOOT_ROM_SIZE 0x400
+#define AXI2PICO_BUFFERS_BASE 0xC0000000
+#define AXI2PICO_BUFFERS_SIZE 0x00010000
+#define PICOXCELL_PERIPH_BASE 0x80000000
+#define PICOXCELL_PERIPH_LENGTH 0x00400000
+#define PICOXCELL_MEMIF_BASE 0x80000000
+#define PICOXCELL_EBI_BASE 0x80010000
+#define PICOXCELL_EMAC_BASE 0x80030000
+#define PICOXCELL_DMAC1_BASE 0x80040000
+#define PICOXCELL_DMAC2_BASE 0x80050000
+#define PICOXCELL_VIC0_BASE 0x80060000
+#define PICOXCELL_VIC1_BASE 0x80064000
+#define PICOXCELL_TZIC_BASE 0x80068000
+#define PICOXCELL_TZPC_BASE 0x80070000
+#define PICOXCELL_FUSE_BASE 0x80080000
+#define PICOXCELL_SSI_BASE 0x80090000
+#define PICOXCELL_AXI2CFG_BASE 0x800A0000
+#define PICOXCELL_IPSEC_BASE 0x80100000
+#define PICOXCELL_SRTP_BASE 0x80140000
+#define PICOXCELL_CIPHER_BASE 0x80180000
+#define PICOXCELL_RTCLK_BASE 0x80200000
+#define PICOXCELL_TIMER_BASE 0x80210000
+#define PICOXCELL_GPIO_BASE 0x80220000
+#define PICOXCELL_UART1_BASE 0x80230000
+#define PICOXCELL_UART2_BASE 0x80240000
+#define PICOXCELL_WDOG_BASE 0x80250000
+#define PC3X3_RNG_BASE 0x800B0000
+#define PC3X3_TIMER2_BASE 0x80260000
+#define PC3X3_OTP_BASE 0xFFFF8000
+
+#define EBI_CS0_BASE 0x40000000
+#define EBI_CS1_BASE 0x48000000
+#define EBI_CS2_BASE 0x50000000
+#define EBI_CS3_BASE 0x58000000
+
+#define SRAM_BASE 0x20000000
+#define SRAM_START 0x20000000
+#define SRAM_SIZE 0x00020000
+#define SRAM_VIRT 0xFE400000
+
+#endif /* __PICOXCELL_H__ */
diff --git a/arch/arm/mach-picoxcell/include/mach/picoxcell/timer.h b/arch/arm/mach-picoxcell/include/mach/picoxcell/timer.h
new file mode 100644
index 0000000..8d67c42
--- /dev/null
+++ b/arch/arm/mach-picoxcell/include/mach/picoxcell/timer.h
@@ -0,0 +1,37 @@
+/*
+ * Copyright (c) 2010 Picochip Ltd., Jamie Iles
+ *
+ * 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.
+ *
+ * This program is distributed in the hope that 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
+ */
+#ifndef PICOXCELL_TIMER_H
+#define PICOXCELL_TIMER_H
+
+/* The spacing between individual timers. */
+#define TIMER_SPACING 0x14
+
+#define TIMER_LOAD_COUNT_REG_OFFSET 0x00
+#define TIMER_CONTROL_REG_OFFSET 0x08
+#define TIMER_EOI_REG_OFFSET 0x0c
+
+#define TIMERS_EOI_REG_OFFSET 0xa4
+
+#define TIMER_ENABLE 0x00000001
+#define TIMER_MODE 0x00000002
+#define TIMER_INTERRUPT_MASK 0x00000004
+
+#define RTCLK_CCV_REG_OFFSET 0x00
+#define RTCLK_SET_REG_OFFSET 0x08
+
+#endif /* PICOXCELL_TIMER_H */
diff --git a/arch/arm/mach-picoxcell/include/mach/picoxcell/wdog.h b/arch/arm/mach-picoxcell/include/mach/picoxcell/wdog.h
new file mode 100644
index 0000000..727780c
--- /dev/null
+++ b/arch/arm/mach-picoxcell/include/mach/picoxcell/wdog.h
@@ -0,0 +1,43 @@
+/*
+ * Copyright (c) 2010 Picochip Ltd., Jamie Iles
+ *
+ * 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.
+ *
+ * This program is distributed in the hope that 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
+ */
+#ifndef PICOXCELL_WDOG_H
+#define PICOXCELL_WDOG_H
+
+#define WDOG_CONTROL_REG_OFFSET 0x00
+#define WDOG_TIMEOUT_RANGE_REG_OFFSET 0x04
+#define WDOG_CURRENT_COUNT_REG_OFFSET 0x08
+#define WDOG_COUNTER_RESTART_REG_OFFSET 0x0c
+#define WDOG_INT_STATUS_REG_OFFSET 0x10
+#define WDOG_CLEAR_REG_OFFSET 0x14
+
+#define WDOG_CONTROL_REG_RESET 0x00000016
+#define WDOG_TIMEOUT_RANGE_REG_RESET 0x0000000c
+#define WDOG_CURRENT_COUNT_REG_RESET 0x0fffffff
+#define WDOG_COUNTER_RESTART_REG_RESET 0x00000000
+#define WDOG_INT_STATUS_REG_RESET 0x00000000
+#define WDOG_CLEAR_REG_RESET 0x00000000
+
+#define WDOGCONTROLREGWDT_ENIDX 0
+#define WDOGCONTROLREGRMODIDX 1
+#define WDOGCONTROLREGRPLIDX 2
+
+#define WDOG_CONTROL_REG_WDT_EN_MASK (1 << WDOGCONTROLREGWDT_ENIDX)
+#define WDOG_CONTROL_REG_RMOD_MASK (1 << WDOGCONTROLREGRMODIDX)
+#define WDOG_CONTROL_REG_RPL_MASK (0x7 << WDOGCONTROLREGRPLIDX)
+
+#endif /* PICOXCELL_WDOG_H */
diff --git a/arch/arm/mach-picoxcell/include/mach/platform.h b/arch/arm/mach-picoxcell/include/mach/platform.h
new file mode 100644
index 0000000..97697c0
--- /dev/null
+++ b/arch/arm/mach-picoxcell/include/mach/platform.h
@@ -0,0 +1,27 @@
+/*
+ * Copyright (c) 2010 Picochip Ltd., Jamie Iles
+ *
+ * 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.
+ *
+ * This program is distributed in the hope that 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
+ */
+#ifndef __ARCH_PICOXCELL_PLATFORM_H
+#define __ARCH_PICOXCELL_PLATFORM_H
+
+/* Physical address of the Flash in the ARM sub-system memory map */
+#define PICOXCELL_FLASH_BASE 0x40000000
+
+/* The clock frequency for the UARTs */
+#define PICOXCELL_BASE_BAUD 3686400 /* 3.6864 MHz */
+
+#endif /* __ARCH_PICOXCELL_PLATFORM_H */
diff --git a/arch/arm/mach-picoxcell/include/mach/system.h b/arch/arm/mach-picoxcell/include/mach/system.h
new file mode 100644
index 0000000..b74cb7b
--- /dev/null
+++ b/arch/arm/mach-picoxcell/include/mach/system.h
@@ -0,0 +1,51 @@
+/*
+ * Copyright (c) 2010 Picochip Ltd., Jamie Iles
+ *
+ * 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.
+ *
+ * This program is distributed in the hope that 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
+ */
+#ifndef __ASM_ARCH_SYSTEM_H
+#define __ASM_ARCH_SYSTEM_H
+
+#include <mach/io.h>
+#include <mach/picoxcell/picoxcell.h>
+#include <mach/picoxcell/wdog.h>
+
+static inline void arch_idle(void)
+{
+ /*
+ * This should do all the clock switching
+ * and wait for interrupt tricks
+ */
+ cpu_do_idle();
+}
+
+static inline void arch_reset(int mode, const char *cmd)
+{
+ /*
+ * Set the watchdog to expire as soon as possible and reset the
+ * system.
+ */
+ __raw_writel(WDOG_CONTROL_REG_WDT_EN_MASK,
+ IO_ADDRESS(PICOXCELL_WDOG_BASE + WDOG_CONTROL_REG_OFFSET));
+ __raw_writel(0, IO_ADDRESS(PICOXCELL_WDOG_BASE +
+ WDOG_TIMEOUT_RANGE_REG_OFFSET));
+
+ /* Give it chance to reset. */
+ mdelay(500);
+
+ pr_crit("watchdog reset failed - entering infinite loop\n");
+}
+
+#endif /* __ASM_ARCH_SYSTEM_H */
diff --git a/arch/arm/mach-picoxcell/include/mach/timex.h b/arch/arm/mach-picoxcell/include/mach/timex.h
new file mode 100644
index 0000000..bf0fee6
--- /dev/null
+++ b/arch/arm/mach-picoxcell/include/mach/timex.h
@@ -0,0 +1,26 @@
+/*
+ * Copyright (c) 2010 Picochip Ltd., Jamie Iles
+ *
+ * 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.
+ *
+ * This program is distributed in the hope that 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
+ */
+#ifndef __TIMEX_H__
+#define __TIMEX_H__
+
+#include <mach/platform.h>
+
+#define CLOCK_TICK_RATE 200000000 /* 200MHz */
+
+#endif /* __TIMEX_H__ */
+
diff --git a/arch/arm/mach-picoxcell/include/mach/uncompress.h b/arch/arm/mach-picoxcell/include/mach/uncompress.h
new file mode 100644
index 0000000..3b6c4a5a
--- /dev/null
+++ b/arch/arm/mach-picoxcell/include/mach/uncompress.h
@@ -0,0 +1,60 @@
+/*
+ * Copyright (c) 2010 Picochip Ltd., Jamie Iles
+ *
+ * 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.
+ *
+ * This program is distributed in the hope that 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
+ */
+#include <linux/io.h>
+#include <linux/serial_reg.h>
+
+#include <asm/processor.h>
+
+#include <mach/hardware.h>
+
+#define UART_SHIFT 2
+
+static inline void putc(int c)
+{
+ void __iomem *uart = (void __iomem *)(PICOXCELL_UART1_BASE);
+
+ while (!(__raw_readl(uart + (UART_LSR << UART_SHIFT)) & UART_LSR_THRE))
+ barrier();
+ __raw_writel(c & 0xFF, uart + (UART_TX << UART_SHIFT));
+}
+
+static inline void flush(void)
+{
+}
+
+static inline void arch_decomp_setup(void)
+{
+ void __iomem *uart = (void __iomem *)(PICOXCELL_UART1_BASE);
+
+ /* Reset and enable the FIFO's. */
+ __raw_writel(UART_FCR_ENABLE_FIFO, uart + (UART_FCR << UART_SHIFT));
+
+ /* Wait for the FIFO's to be enabled. */
+ while (!(__raw_readl(uart + (UART_FCR << UART_SHIFT)) &
+ UART_FCR_TRIGGER_14))
+ cpu_relax();
+ /* Enable divisor access, set length to 8 bits. */
+ __raw_writel(UART_LCR_DLAB | UART_LCR_WLEN8,
+ uart + (UART_LCR << UART_SHIFT));
+ /* Set for 115200 baud. */
+ __raw_writel(0x2, uart + (UART_DLL << UART_SHIFT));
+ __raw_writel(0x0, uart + (UART_DLM << UART_SHIFT));
+ __raw_writel(UART_LCR_WLEN8, uart + (UART_LCR << UART_SHIFT));
+}
+
+#define arch_decomp_wdog()
diff --git a/arch/arm/mach-picoxcell/include/mach/vmalloc.h b/arch/arm/mach-picoxcell/include/mach/vmalloc.h
new file mode 100644
index 0000000..09a7f75
--- /dev/null
+++ b/arch/arm/mach-picoxcell/include/mach/vmalloc.h
@@ -0,0 +1,18 @@
+/*
+ * Copyright (c) 2010 Picochip Ltd., Jamie Iles
+ *
+ * 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.
+ *
+ * This program is distributed in the hope that 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
+ */
+#define VMALLOC_END 0xFE000000UL
diff --git a/arch/arm/mach-picoxcell/io.c b/arch/arm/mach-picoxcell/io.c
new file mode 100644
index 0000000..5c61dbe
--- /dev/null
+++ b/arch/arm/mach-picoxcell/io.c
@@ -0,0 +1,49 @@
+#include <linux/init.h>
+#include <linux/mm.h>
+#include <linux/module.h>
+
+#include <asm/mach/map.h>
+
+#include <mach/hardware.h>
+
+static struct map_desc __initdata picoxcell_io_desc[] = {
+ {
+ .virtual = PHYS_TO_IO(PICOXCELL_PERIPH_BASE),
+ .pfn = __phys_to_pfn(PICOXCELL_PERIPH_BASE),
+ .length = PICOXCELL_PERIPH_LENGTH,
+ .type = MT_DEVICE,
+ },
+ {
+ .virtual = SRAM_VIRT,
+ .pfn = __phys_to_pfn(SRAM_BASE),
+ .length = SRAM_SIZE,
+ .type = MT_MEMORY,
+ },
+};
+
+void __init picoxcell_map_io(void)
+{
+ iotable_init(picoxcell_io_desc, ARRAY_SIZE(picoxcell_io_desc));
+}
+
+/*
+ * Intercept ioremap() requests for addresses in our fixed mapping regions.
+ */
+void __iomem *picoxcell_ioremap(unsigned long p, size_t size, unsigned int type)
+{
+ if (p >= PICOXCELL_PERIPH_BASE &&
+ p < PICOXCELL_PERIPH_BASE + PICOXCELL_PERIPH_LENGTH)
+ return IO_ADDRESS(p);
+
+ return __arm_ioremap_caller(p, size, type, __builtin_return_address(0));
+}
+EXPORT_SYMBOL(picoxcell_ioremap);
+
+void picoxcell_iounmap(volatile void __iomem *addr)
+{
+ unsigned long virt = (unsigned long)addr;
+
+ if (virt >= VMALLOC_START && virt < VMALLOC_END)
+ __iounmap(addr);
+}
+EXPORT_SYMBOL(picoxcell_iounmap);
diff --git a/arch/arm/mach-picoxcell/picoxcell_core.c b/arch/arm/mach-picoxcell/picoxcell_core.c
new file mode 100644
index 0000000..a0db3fd
--- /dev/null
+++ b/arch/arm/mach-picoxcell/picoxcell_core.c
@@ -0,0 +1,105 @@
+/*
+ * Copyright (c) 2010 Picochip Ltd., Jamie Iles
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * All enquiries to support@...ochip.com
+ */
+#include <linux/interrupt.h>
+#include <linux/io.h>
+#include <linux/irq.h>
+
+#include <asm/hardware/vic.h>
+#include <asm/mach-types.h>
+
+#include <mach/hardware.h>
+
+#include "picoxcell_core.h"
+#include "soc.h"
+
+static const struct picoxcell_timer picoxcell_timers[] = {
+ {
+ .name = "timer0",
+ .type = TIMER_TYPE_TIMER,
+ .base = PICOXCELL_TIMER_BASE + 0 * TIMER_SPACING,
+ .irq = IRQ_TIMER0,
+ },
+ {
+ .name = "timer1",
+ .type = TIMER_TYPE_TIMER,
+ .base = PICOXCELL_TIMER_BASE + 1 * TIMER_SPACING,
+ .irq = IRQ_TIMER1,
+ },
+ {
+ .name = "rtc",
+ .type = TIMER_TYPE_RTC,
+ .base = PICOXCELL_RTCLK_BASE,
+ .irq = IRQ_RTC,
+ },
+};
+
+static struct picoxcell_soc generic_soc = {
+ .timers = picoxcell_timers,
+ .nr_timers = ARRAY_SIZE(picoxcell_timers),
+};
+
+struct picoxcell_soc *picoxcell_get_soc(void)
+{
+ return &generic_soc;
+}
+
+void __init picoxcell_init_irq(void)
+{
+ u32 vic0_resume_sources =
+ (1 << (IRQ_AXI2PICO8 & 31)) |
+ (1 << (IRQ_EMAC & 31)) |
+ (1 << (IRQ_WDG & 31));
+
+ vic_init(IO_ADDRESS(PICOXCELL_VIC0_BASE), 32, 0xFFFFFFFE,
+ vic0_resume_sources);
+ vic_init(IO_ADDRESS(PICOXCELL_VIC1_BASE), 0, 0x7FF, 0);
+}
+
+static const char *picoxcell_get_partname(void)
+{
+ unsigned long dev_id = axi2cfg_readl(AXI2CFG_DEVICE_ID_REG_OFFSET);
+ const char *part = "<unknown>";
+
+ if (dev_id == 0x8003)
+ part = "pc302";
+ else if (dev_id == 0x8007)
+ part = "pc312";
+ else if (dev_id == 0x20)
+ part = "pc313";
+ else if (dev_id == 0x21)
+ part = "pc323";
+ else if (dev_id == 0x22)
+ part = "pc333";
+
+ return part;
+}
+
+static inline unsigned long picoxcell_get_revision(void)
+{
+ return axi2cfg_readl(AXI2CFG_REVISION_ID_REG_OFFSET);
+}
+
+static void report_chipinfo(void)
+{
+ const char *part = picoxcell_get_partname();
+ unsigned long revision = picoxcell_get_revision();
+
+ pr_info("Picochip picoXcell device: %s revision %lu\n", part, revision);
+}
+
+void __init picoxcell_init_early(void)
+{
+ axi2cfg_init();
+}
+
+void __init picoxcell_core_init(void)
+{
+ report_chipinfo();
+}
diff --git a/arch/arm/mach-picoxcell/picoxcell_core.h b/arch/arm/mach-picoxcell/picoxcell_core.h
new file mode 100644
index 0000000..299c512
--- /dev/null
+++ b/arch/arm/mach-picoxcell/picoxcell_core.h
@@ -0,0 +1,22 @@
+/*
+ * linux/arch/arm/mach-picoxcell/picoxcell_core.h
+ *
+ * Copyright (c) 2010 Picochip Ltd., Jamie Iles
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * All enquiries to support@...ochip.com
+ */
+#ifndef __ASM_ARCH_PICOXCELL_CORE_H__
+#define __ASM_ARCH_PICOXCELL_CORE_H__
+
+struct picoxcell_soc;
+
+extern void picoxcell_init_early(void);
+extern void picoxcell_core_init(void);
+extern void picoxcell_init_irq(void);
+extern void picoxcell_map_io(void);
+
+#endif /* __ASM_ARCH_PICOXCELL_CORE_H__ */
diff --git a/arch/arm/mach-picoxcell/soc.h b/arch/arm/mach-picoxcell/soc.h
new file mode 100644
index 0000000..1422216
--- /dev/null
+++ b/arch/arm/mach-picoxcell/soc.h
@@ -0,0 +1,32 @@
+/*
+ * Copyright (c) 2010 Picochip Ltd., Jamie Iles
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * All enquiries to support@...ochip.com
+ */
+#ifndef __PICOXCELL_SOC_H__
+#define __PICOXCELL_SOC_H__
+
+enum timer_type {
+ TIMER_TYPE_RTC,
+ TIMER_TYPE_TIMER,
+};
+
+struct picoxcell_timer {
+ const char *name;
+ enum timer_type type;
+ unsigned long base;
+ int irq;
+};
+
+struct picoxcell_soc {
+ const struct picoxcell_timer *timers;
+ int nr_timers;
+};
+
+extern struct picoxcell_soc *picoxcell_get_soc(void);
+
+#endif /* __PICOXCELL_SOC_H__ */
--
1.7.4
--
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