select HAVE_CLK
select COMMON_CLKDEV
select ARCH_REQUIRE_GPIOLIB
+ select HAVE_CLK
+ select COMMON_CLKDEV
select GENERIC_TIME
select GENERIC_CLOCKEVENTS
select TICK_ONESHOT
help
Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
+config ARCH_MMP
+ bool "Marvell PXA168"
+ depends on MMU
+ select HAVE_CLK
+ select COMMON_CLKDEV
+ select GENERIC_TIME
+ select GENERIC_CLOCKEVENTS
+ select TICK_ONESHOT
+ select PLAT_PXA
+ help
+ Support for Marvell's PXA168 processor line.
+
config ARCH_RPC
bool "RiscPC"
select ARCH_ACORN
source "arch/arm/mach-pxa/Kconfig"
source "arch/arm/plat-pxa/Kconfig"
+source "arch/arm/mach-mmp/Kconfig"
+
source "arch/arm/mach-sa1100/Kconfig"
source "arch/arm/plat-omap/Kconfig"
textofs-$(CONFIG_SA1111) := 0x00208000
endif
machine-$(CONFIG_ARCH_PXA) := pxa
+ machine-$(CONFIG_ARCH_MMP) := mmp
plat-$(CONFIG_PLAT_PXA) := pxa
machine-$(CONFIG_ARCH_L7200) := l7200
machine-$(CONFIG_ARCH_INTEGRATOR) := integrator
b __armv4_mmu_cache_off
b __armv4_mmu_cache_flush
+ .word 0x56158000 @ PXA168
+ .word 0xfffff000
+ b __armv4_mmu_cache_on
+ b __armv4_mmu_cache_off
+ b __armv5tej_mmu_cache_flush
+
+ .word 0x56056930
+ .word 0xff0ffff0 @ PXA935
+ b __armv4_mmu_cache_on
+ b __armv4_mmu_cache_off
+ b __armv4_mmu_cache_flush
+
.word 0x56050000 @ Feroceon
.word 0xff0f0000
b __armv4_mmu_cache_on
# endif
#endif
+#if defined(CONFIG_CPU_MOHAWK)
+# ifdef _CACHE
+# define MULTI_CACHE 1
+# else
+# define _CACHE mohawk
+# endif
+#endif
+
#if defined(CONFIG_CPU_FEROCEON)
# define MULTI_CACHE 1
#endif
# define CPU_NAME cpu_xsc3
# endif
# endif
+# ifdef CONFIG_CPU_MOHAWK
+# ifdef CPU_NAME
+# undef MULTI_CPU
+# define MULTI_CPU
+# else
+# define CPU_NAME cpu_mohawk
+# endif
+# endif
# ifdef CONFIG_CPU_FEROCEON
# ifdef CPU_NAME
# undef MULTI_CPU
--- /dev/null
+if ARCH_MMP
+
+menu "Marvell PXA168 Implmentations"
+
+config MACH_ASPENITE
+ bool "Marvell's PXA168 Aspenite Development Board"
+ select CPU_PXA168
+ help
+ Say 'Y' here if you want to support the Marvell PXA168-based
+ Aspenite Development Board.
+
+config MACH_ZYLONITE2
+ bool "Marvell's PXA168 Zylonite2 Development Board"
+ select CPU_PXA168
+ help
+ Say 'Y' here if you want to support the Marvell PXA168-based
+ Zylonite2 Development Board.
+
+endmenu
+
+config CPU_PXA168
+ bool
+ select CPU_MOHAWK
+ help
+ Select code specific to PXA168
+
+endif
--- /dev/null
+#
+# Makefile for Marvell's PXA168 processors line
+#
+
+obj-y += common.o clock.o devices.o irq.o time.o
+
+# SoC support
+obj-$(CONFIG_CPU_PXA168) += pxa168.o
+
+# board support
+obj-$(CONFIG_MACH_ASPENITE) += aspenite.o
+obj-$(CONFIG_MACH_ZYLONITE2) += aspenite.o
--- /dev/null
+ zreladdr-y := 0x00008000
--- /dev/null
+/*
+ * linux/arch/arm/mach-mmp/aspenite.c
+ *
+ * Support for the Marvell PXA168-based Aspenite and Zylonite2
+ * Development Platform.
+ *
+ * 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
+ * publishhed by the Free Software Foundation.
+ */
+
+#include <linux/init.h>
+
+#include <asm/mach-types.h>
+#include <asm/mach/arch.h>
+#include <mach/addr-map.h>
+
+#include "common.h"
+
+static void __init common_init(void)
+{
+}
+
+MACHINE_START(ASPENITE, "PXA168-based Aspenite Development Platform")
+ .phys_io = APB_PHYS_BASE,
+ .boot_params = 0x00000100,
+ .io_pg_offst = (APB_VIRT_BASE >> 18) & 0xfffc,
+ .map_io = pxa_map_io,
+ .init_irq = pxa168_init_irq,
+ .timer = &pxa168_timer,
+ .init_machine = common_init,
+MACHINE_END
+
+MACHINE_START(ZYLONITE2, "PXA168-based Zylonite2 Development Platform")
+ .phys_io = APB_PHYS_BASE,
+ .boot_params = 0x00000100,
+ .io_pg_offst = (APB_VIRT_BASE >> 18) & 0xfffc,
+ .map_io = pxa_map_io,
+ .init_irq = pxa168_init_irq,
+ .timer = &pxa168_timer,
+ .init_machine = common_init,
+MACHINE_END
--- /dev/null
+/*
+ * linux/arch/arm/mach-mmp/clock.c
+ *
+ * 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.
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/list.h>
+#include <linux/spinlock.h>
+#include <linux/clk.h>
+#include <linux/io.h>
+
+#include <mach/regs-apbc.h>
+#include "clock.h"
+
+static void apbc_clk_enable(struct clk *clk)
+{
+ uint32_t clk_rst;
+
+ clk_rst = APBC_APBCLK | APBC_FNCLK | APBC_FNCLKSEL(clk->fnclksel);
+ __raw_writel(clk_rst, clk->clk_rst);
+}
+
+static void apbc_clk_disable(struct clk *clk)
+{
+ __raw_writel(0, clk->clk_rst);
+}
+
+struct clkops apbc_clk_ops = {
+ .enable = apbc_clk_enable,
+ .disable = apbc_clk_disable,
+};
+
+static DEFINE_SPINLOCK(clocks_lock);
+
+int clk_enable(struct clk *clk)
+{
+ unsigned long flags;
+
+ spin_lock_irqsave(&clocks_lock, flags);
+ if (clk->enabled++ == 0)
+ clk->ops->enable(clk);
+ spin_unlock_irqrestore(&clocks_lock, flags);
+ return 0;
+}
+EXPORT_SYMBOL(clk_enable);
+
+void clk_disable(struct clk *clk)
+{
+ unsigned long flags;
+
+ WARN_ON(clk->enabled == 0);
+
+ spin_lock_irqsave(&clocks_lock, flags);
+ if (--clk->enabled == 0)
+ clk->ops->disable(clk);
+ spin_unlock_irqrestore(&clocks_lock, flags);
+}
+EXPORT_SYMBOL(clk_disable);
+
+unsigned long clk_get_rate(struct clk *clk)
+{
+ unsigned long rate;
+
+ if (clk->ops->getrate)
+ rate = clk->ops->getrate(clk);
+ else
+ rate = clk->rate;
+
+ return rate;
+}
+EXPORT_SYMBOL(clk_get_rate);
+
+void clks_register(struct clk_lookup *clks, size_t num)
+{
+ int i;
+
+ for (i = 0; i < num; i++)
+ clkdev_add(&clks[i]);
+}
--- /dev/null
+/*
+ * linux/arch/arm/mach-mmp/clock.h
+ *
+ * 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.
+ */
+
+#include <asm/clkdev.h>
+
+struct clkops {
+ void (*enable)(struct clk *);
+ void (*disable)(struct clk *);
+ unsigned long (*getrate)(struct clk *);
+};
+
+struct clk {
+ const struct clkops *ops;
+
+ void __iomem *clk_rst; /* clock reset control register */
+ int fnclksel; /* functional clock select (APBC) */
+ uint32_t enable_val; /* value for clock enable (APMU) */
+ unsigned long rate;
+ int enabled;
+};
+
+extern struct clkops apbc_clk_ops;
+
+#define APBC_CLK(_name, _reg, _fnclksel, _rate) \
+struct clk clk_##_name = { \
+ .clk_rst = (void __iomem *)APBC_##_reg, \
+ .fnclksel = _fnclksel, \
+ .rate = _rate, \
+ .ops = &apbc_clk_ops, \
+}
+
+#define APBC_CLK_OPS(_name, _reg, _fnclksel, _rate, _ops) \
+struct clk clk_##_name = { \
+ .clk_rst = (void __iomem *)APBC_##_reg, \
+ .fnclksel = _fnclksel, \
+ .rate = _rate, \
+ .ops = _ops, \
+}
+
+#define APMU_CLK(_name, _reg, _eval, _rate) \
+struct clk clk_##_name = { \
+ .clk_rst = (void __iomem *)APMU_##_reg, \
+ .enable_val = _eval, \
+ .rate = _rate, \
+ .ops = &apmu_clk_ops, \
+}
+
+#define APMU_CLK_OPS(_name, _reg, _eval, _rate, _ops) \
+struct clk clk_##_name = { \
+ .clk_rst = (void __iomem *)APMU_##_reg, \
+ .enable_val = _eval, \
+ .rate = _rate, \
+ .ops = _ops, \
+}
+
+#define INIT_CLKREG(_clk, _devname, _conname) \
+ { \
+ .clk = _clk, \
+ .dev_id = _devname, \
+ .con_id = _conname, \
+ }
+
+extern struct clk clk_pxa168_gpio;
+extern struct clk clk_pxa168_timers;
+
+extern void clks_register(struct clk_lookup *, size_t);
--- /dev/null
+/*
+ * linux/arch/arm/mach-mmp/common.c
+ *
+ * Code common to PXA168 processor lines
+ *
+ * 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.
+ */
+
+#include <linux/init.h>
+#include <linux/kernel.h>
+
+#include <asm/page.h>
+#include <asm/mach/map.h>
+#include <mach/addr-map.h>
+
+#include "common.h"
+
+static struct map_desc standard_io_desc[] __initdata = {
+ {
+ .pfn = __phys_to_pfn(APB_PHYS_BASE),
+ .virtual = APB_VIRT_BASE,
+ .length = APB_PHYS_SIZE,
+ .type = MT_DEVICE,
+ }, {
+ .pfn = __phys_to_pfn(AXI_PHYS_BASE),
+ .virtual = AXI_VIRT_BASE,
+ .length = AXI_PHYS_SIZE,
+ .type = MT_DEVICE,
+ },
+};
+
+void __init pxa_map_io(void)
+{
+ iotable_init(standard_io_desc, ARRAY_SIZE(standard_io_desc));
+}
--- /dev/null
+#define ARRAY_AND_SIZE(x) (x), ARRAY_SIZE(x)
+
+struct sys_timer;
+
+extern void timer_init(int irq);
+
+extern struct sys_timer pxa168_timer;
+extern void __init pxa168_init_irq(void);
+
+extern void __init icu_init_irq(void);
+extern void __init pxa_map_io(void);
--- /dev/null
+/*
+ * linux/arch/arm/mach-mmp/devices.c
+ *
+ * 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.
+ */
+
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/dma-mapping.h>
+
+#include <asm/irq.h>
+#include <mach/devices.h>
+
+int __init pxa_register_device(struct pxa_device_desc *desc,
+ void *data, size_t size)
+{
+ struct platform_device *pdev;
+ struct resource res[2 + MAX_RESOURCE_DMA];
+ int i, ret = 0, nres = 0;
+
+ pdev = platform_device_alloc(desc->drv_name, desc->id);
+ if (pdev == NULL)
+ return -ENOMEM;
+
+ pdev->dev.coherent_dma_mask = DMA_BIT_MASK(32);
+
+ memset(res, 0, sizeof(res));
+
+ if (desc->start != -1ul && desc->size > 0) {
+ res[nres].start = desc->start;
+ res[nres].end = desc->start + desc->size - 1;
+ res[nres].flags = IORESOURCE_MEM;
+ nres++;
+ }
+
+ if (desc->irq != NO_IRQ) {
+ res[nres].start = desc->irq;
+ res[nres].end = desc->irq;
+ res[nres].flags = IORESOURCE_IRQ;
+ nres++;
+ }
+
+ for (i = 0; i < MAX_RESOURCE_DMA; i++, nres++) {
+ if (desc->dma[i] == 0)
+ break;
+
+ res[nres].start = desc->dma[i];
+ res[nres].end = desc->dma[i];
+ res[nres].flags = IORESOURCE_DMA;
+ }
+
+ ret = platform_device_add_resources(pdev, res, nres);
+ if (ret) {
+ platform_device_put(pdev);
+ return ret;
+ }
+
+ if (data && size) {
+ ret = platform_device_add_data(pdev, data, size);
+ if (ret) {
+ platform_device_put(pdev);
+ return ret;
+ }
+ }
+
+ return platform_device_add(pdev);
+}
--- /dev/null
+/*
+ * linux/arch/arm/mach-mmp/include/mach/addr-map.h
+ *
+ * Common address map definitions
+ *
+ * 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.
+ */
+
+#ifndef __ASM_MACH_ADDR_MAP_H
+#define __ASM_MACH_ADDR_MAP_H
+
+/* APB - Application Subsystem Peripheral Bus
+ *
+ * NOTE: the DMA controller registers are actually on the AXI fabric #1
+ * slave port to AHB/APB bridge, due to its close relationship to those
+ * peripherals on APB, let's count it into the ABP mapping area.
+ */
+#define APB_PHYS_BASE 0xd4000000
+#define APB_VIRT_BASE 0xfe000000
+#define APB_PHYS_SIZE 0x00200000
+
+#define AXI_PHYS_BASE 0xd4200000
+#define AXI_VIRT_BASE 0xfe200000
+#define AXI_PHYS_SIZE 0x00200000
+
+/* Static Memory Controller - Chip Select 0 and 1 */
+#define SMC_CS0_PHYS_BASE 0x80000000
+#define SMC_CS0_PHYS_SIZE 0x10000000
+#define SMC_CS1_PHYS_BASE 0x90000000
+#define SMC_CS1_PHYS_SIZE 0x10000000
+
+#endif /* __ASM_MACH_ADDR_MAP_H */
--- /dev/null
+#ifndef __ASM_MACH_CLKDEV_H
+#define __ASM_MACH_CLKDEV_H
+
+#define __clk_get(clk) ({ 1; })
+#define __clk_put(clk) do { } while (0)
+
+#endif /* __ASM_MACH_CLKDEV_H */
--- /dev/null
+#ifndef __ASM_MACH_CPUTYPE_H
+#define __ASM_MACH_CPUTYPE_H
+
+#include <asm/cputype.h>
+
+/*
+ * CPU Stepping OLD_ID CPU_ID CHIP_ID
+ *
+ * PXA168 A0 0x41159263 0x56158400 0x00A0A333
+ */
+
+#ifdef CONFIG_CPU_PXA168
+# define __cpu_is_pxa168(id) \
+ ({ unsigned int _id = ((id) >> 8) & 0xff; _id == 0x84; })
+#else
+# define __cpu_is_pxa168(id) (0)
+#endif
+
+#define cpu_is_pxa168() ({ __cpu_is_pxa168(read_cpuid_id()); })
+
+#endif /* __ASM_MACH_CPUTYPE_H */
--- /dev/null
+/* arch/arm/mach-mmp/include/mach/debug-macro.S
+ *
+ * Debugging macro include header
+ *
+ * Copied from arch/arm/mach-pxa/include/mach/debug.S
+ *
+ * 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.
+ */
+
+#include <mach/addr-map.h>
+
+ .macro addruart,rx
+ mrc p15, 0, \rx, c1, c0
+ tst \rx, #1 @ MMU enabled?
+ ldreq \rx, =APB_PHYS_BASE @ physical
+ ldrne \rx, =APB_VIRT_BASE @ virtual
+ orr \rx, \rx, #0x00017000
+ .endm
+
+#define UART_SHIFT 2
+#include <asm/hardware/debug-8250.S>
--- /dev/null
+#include <linux/types.h>
+
+#define MAX_RESOURCE_DMA 2
+
+/* structure for describing the on-chip devices */
+struct pxa_device_desc {
+ const char *dev_name;
+ const char *drv_name;
+ int id;
+ int irq;
+ unsigned long start;
+ unsigned long size;
+ int dma[MAX_RESOURCE_DMA];
+};
+
+#define PXA168_DEVICE(_name, _drv, _id, _irq, _start, _size, _dma...) \
+struct pxa_device_desc pxa168_device_##_name __initdata = { \
+ .dev_name = "pxa168-" #_name, \
+ .drv_name = _drv, \
+ .id = _id, \
+ .irq = IRQ_PXA168_##_irq, \
+ .start = _start, \
+ .size = _size, \
+ .dma = { _dma }, \
+};
+
+extern int pxa_register_device(struct pxa_device_desc *, void *, size_t);
--- /dev/null
+/*
+ * linux/arch/arm/mach-mmp/include/mach/dma.h
+ */
+
+#ifndef __ASM_MACH_DMA_H
+#define __ASM_MACH_DMA_H
+
+#include <mach/addr-map.h>
+
+#define DMAC_REGS_VIRT (APB_VIRT_BASE + 0x00000)
+
+#include <plat/dma.h>
+#endif /* __ASM_MACH_DMA_H */
--- /dev/null
+/*
+ * linux/arch/arm/mach-mmp/include/mach/entry-macro.S
+ *
+ * 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.
+ */
+
+#include <mach/regs-icu.h>
+
+ .macro disable_fiq
+ .endm
+
+ .macro arch_ret_to_user, tmp1, tmp2
+ .endm
+
+ .macro get_irqnr_preamble, base, tmp
+ ldr \base, =ICU_AP_IRQ_SEL_INT_NUM
+ .endm
+
+ .macro get_irqnr_and_base, irqnr, irqstat, base, tmp
+ ldr \tmp, [\base, #0]
+ and \irqnr, \tmp, #0x3f
+ tst \tmp, #(1 << 6)
+ .endm
--- /dev/null
+#ifndef __ASM_MACH_HARDWARE_H
+#define __ASM_MACH_HARDWARE_H
+
+#endif /* __ASM_MACH_HARDWARE_H */
--- /dev/null
+/*
+ * linux/arch/arm/mach-mmp/include/mach/io.h
+ *
+ * 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.
+ */
+
+#ifndef __ASM_MACH_IO_H
+#define __ASM_MACH_IO_H
+
+#define IO_SPACE_LIMIT 0xffffffff
+
+/*
+ * We don't actually have real ISA nor PCI buses, but there is so many
+ * drivers out there that might just work if we fake them...
+ */
+#define __io(a) __typesafe_io(a)
+#define __mem_pci(a) (a)
+
+#endif /* __ASM_MACH_IO_H */
--- /dev/null
+#ifndef __ASM_MACH_IRQS_H
+#define __ASM_MACH_IRQS_H
+
+/*
+ * Interrupt numbers for PXA168
+ */
+#define IRQ_PXA168_NONE (-1)
+#define IRQ_PXA168_SSP3 0
+#define IRQ_PXA168_SSP2 1
+#define IRQ_PXA168_SSP1 2
+#define IRQ_PXA168_SSP0 3
+#define IRQ_PXA168_PMIC_INT 4
+#define IRQ_PXA168_RTC_INT 5
+#define IRQ_PXA168_RTC_ALARM 6
+#define IRQ_PXA168_TWSI0 7
+#define IRQ_PXA168_GPU 8
+#define IRQ_PXA168_KEYPAD 9
+#define IRQ_PXA168_ONEWIRE 12
+#define IRQ_PXA168_TIMER1 13
+#define IRQ_PXA168_TIMER2 14
+#define IRQ_PXA168_TIMER3 15
+#define IRQ_PXA168_CMU 16
+#define IRQ_PXA168_SSP4 17
+#define IRQ_PXA168_MSP_WAKEUP 19
+#define IRQ_PXA168_CF_WAKEUP 20
+#define IRQ_PXA168_XD_WAKEUP 21
+#define IRQ_PXA168_MFU 22
+#define IRQ_PXA168_MSP 23
+#define IRQ_PXA168_CF 24
+#define IRQ_PXA168_XD 25
+#define IRQ_PXA168_DDR_INT 26
+#define IRQ_PXA168_UART1 27
+#define IRQ_PXA168_UART2 28
+#define IRQ_PXA168_WDT 35
+#define IRQ_PXA168_FRQ_CHANGE 38
+#define IRQ_PXA168_SDH1 39
+#define IRQ_PXA168_SDH2 40
+#define IRQ_PXA168_LCD 41
+#define IRQ_PXA168_CI 42
+#define IRQ_PXA168_USB1 44
+#define IRQ_PXA168_NAND 45
+#define IRQ_PXA168_HIFI_DMA 46
+#define IRQ_PXA168_DMA_INT0 47
+#define IRQ_PXA168_DMA_INT1 48
+#define IRQ_PXA168_GPIOX 49
+#define IRQ_PXA168_USB2 51
+#define IRQ_PXA168_AC97 57
+#define IRQ_PXA168_TWSI1 58
+#define IRQ_PXA168_PMU 60
+#define IRQ_PXA168_SM_INT 63
+
+#define IRQ_GPIO_START 64
+#define IRQ_GPIO_NUM 128
+#define IRQ_GPIO(x) (IRQ_GPIO_START + (x))
+
+#define NR_IRQS (IRQ_GPIO_START + IRQ_GPIO_NUM)
+
+#endif /* __ASM_MACH_IRQS_H */
--- /dev/null
+/*
+ * linux/arch/arm/mach-mmp/include/mach/memory.h
+ *
+ * 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.
+ */
+
+#ifndef __ASM_MACH_MEMORY_H
+#define __ASM_MACH_MEMORY_H
+
+#define PHYS_OFFSET UL(0x00000000)
+
+#endif /* __ASM_MACH_MEMORY_H */
--- /dev/null
+#ifndef __ASM_MACH_PXA168_H
+#define __ASM_MACH_PXA168_H
+
+#include <mach/devices.h>
+
+extern struct pxa_device_desc pxa168_device_uart1;
+extern struct pxa_device_desc pxa168_device_uart2;
+
+static inline int pxa168_add_uart(int id)
+{
+ struct pxa_device_desc *d = NULL;
+
+ switch (id) {
+ case 1: d = &pxa168_device_uart1; break;
+ case 2: d = &pxa168_device_uart2; break;
+ }
+
+ if (d == NULL)
+ return -EINVAL;
+
+ return pxa_register_device(d, NULL, 0);
+}
+#endif /* __ASM_MACH_PXA168_H */
--- /dev/null
+/*
+ * linux/arch/arm/mach-mmp/include/mach/regs-apbc.h
+ *
+ * Application Peripheral Bus Clock Unit
+ *
+ * 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.
+ */
+
+#ifndef __ASM_MACH_REGS_APBC_H
+#define __ASM_MACH_REGS_APBC_H
+
+#include <mach/addr-map.h>
+
+#define APBC_VIRT_BASE (APB_VIRT_BASE + 0x015000)
+#define APBC_REG(x) (APBC_VIRT_BASE + (x))
+
+/*
+ * APB clock register offsets for PXA168
+ */
+#define APBC_PXA168_UART1 APBC_REG(0x000)
+#define APBC_PXA168_UART2 APBC_REG(0x004)
+#define APBC_PXA168_GPIO APBC_REG(0x008)
+#define APBC_PXA168_PWM0 APBC_REG(0x00c)
+#define APBC_PXA168_PWM1 APBC_REG(0x010)
+#define APBC_PXA168_SSP1 APBC_REG(0x01c)
+#define APBC_PXA168_SSP2 APBC_REG(0x020)
+#define APBC_PXA168_RTC APBC_REG(0x028)
+#define APBC_PXA168_TWSI0 APBC_REG(0x02c)
+#define APBC_PXA168_KPC APBC_REG(0x030)
+#define APBC_PXA168_TIMERS APBC_REG(0x034)
+#define APBC_PXA168_AIB APBC_REG(0x03c)
+#define APBC_PXA168_SW_JTAG APBC_REG(0x040)
+#define APBC_PXA168_ONEWIRE APBC_REG(0x048)
+#define APBC_PXA168_SSP3 APBC_REG(0x04c)
+#define APBC_PXA168_ASFAR APBC_REG(0x050)
+#define APBC_PXA168_ASSAR APBC_REG(0x054)
+#define APBC_PXA168_SSP4 APBC_REG(0x058)
+#define APBC_PXA168_SSP5 APBC_REG(0x05c)
+#define APBC_PXA168_TWSI1 APBC_REG(0x06c)
+#define APBC_PXA168_UART3 APBC_REG(0x070)
+#define APBC_PXA168_AC97 APBC_REG(0x084)
+
+/* Common APB clock register bit definitions */
+#define APBC_APBCLK (1 << 0) /* APB Bus Clock Enable */
+#define APBC_FNCLK (1 << 1) /* Functional Clock Enable */
+#define APBC_RST (1 << 2) /* Reset Generation */
+
+/* Functional Clock Selection Mask */
+#define APBC_FNCLKSEL(x) (((x) & 0xf) << 4)
+
+#endif /* __ASM_MACH_REGS_APBC_H */
--- /dev/null
+/*
+ * linux/arch/arm/mach-mmp/include/mach/regs-apmu.h
+ *
+ * Application Subsystem Power Management Unit
+ *
+ * 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.
+ */
+
+#ifndef __ASM_MACH_REGS_APMU_H
+#define __ASM_MACH_REGS_APMU_H
+
+#include <mach/addr-map.h>
+
+#define APMU_VIRT_BASE (AXI_VIRT_BASE + 0x82800)
+#define APMU_REG(x) (APMU_VIRT_BASE + (x))
+
+/* Clock Reset Control */
+#define APMU_IRE APMU_REG(0x048)
+#define APMU_LCD APMU_REG(0x04c)
+#define APMU_CCIC APMU_REG(0x050)
+#define APMU_SDH0 APMU_REG(0x054)
+#define APMU_SDH1 APMU_REG(0x058)
+#define APMU_USB APMU_REG(0x05c)
+#define APMU_NAND APMU_REG(0x060)
+#define APMU_DMA APMU_REG(0x064)
+#define APMU_GEU APMU_REG(0x068)
+#define APMU_BUS APMU_REG(0x06c)
+
+#define APMU_FNCLK_EN (1 << 4)
+#define APMU_AXICLK_EN (1 << 3)
+#define APMU_FNRST_DIS (1 << 1)
+#define APMU_AXIRST_DIS (1 << 0)
+
+#endif /* __ASM_MACH_REGS_APMU_H */
--- /dev/null
+/*
+ * linux/arch/arm/mach-mmp/include/mach/regs-icu.h
+ *
+ * Interrupt Control Unit
+ *
+ * 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.
+ */
+
+#ifndef __ASM_MACH_ICU_H
+#define __ASM_MACH_ICU_H
+
+#include <mach/addr-map.h>
+
+#define ICU_VIRT_BASE (AXI_VIRT_BASE + 0x82000)
+#define ICU_REG(x) (ICU_VIRT_BASE + (x))
+
+#define ICU_INT_CONF(n) ICU_REG((n) << 2)
+#define ICU_INT_CONF_AP_INT (1 << 6)
+#define ICU_INT_CONF_CP_INT (1 << 5)
+#define ICU_INT_CONF_IRQ (1 << 4)
+#define ICU_INT_CONF_MASK (0xf)
+
+#define ICU_AP_FIQ_SEL_INT_NUM ICU_REG(0x108) /* AP FIQ Selected Interrupt */
+#define ICU_AP_IRQ_SEL_INT_NUM ICU_REG(0x10C) /* AP IRQ Selected Interrupt */
+#define ICU_AP_GBL_IRQ_MSK ICU_REG(0x114) /* AP Global Interrupt Mask */
+#define ICU_INT_STATUS_0 ICU_REG(0x128) /* Interrupt Stuats 0 */
+#define ICU_INT_STATUS_1 ICU_REG(0x12C) /* Interrupt Status 1 */
+
+#endif /* __ASM_MACH_ICU_H */
--- /dev/null
+/*
+ * linux/arch/arm/mach-mmp/include/mach/regs-timers.h
+ *
+ * Timers Module
+ *
+ * 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.
+ */
+
+#ifndef __ASM_MACH_REGS_TIMERS_H
+#define __ASM_MACH_REGS_TIMERS_H
+
+#include <mach/addr-map.h>
+
+#define TIMERS1_VIRT_BASE (APB_VIRT_BASE + 0x14000)
+#define TIMERS2_VIRT_BASE (APB_VIRT_BASE + 0x16000)
+
+#define TMR_CCR (0x0000)
+#define TMR_TN_MM(n, m) (0x0004 + ((n) << 3) + (((n) + (m)) << 2))
+#define TMR_CR(n) (0x0028 + ((n) << 2))
+#define TMR_SR(n) (0x0034 + ((n) << 2))
+#define TMR_IER(n) (0x0040 + ((n) << 2))
+#define TMR_PLVR(n) (0x004c + ((n) << 2))
+#define TMR_PLCR(n) (0x0058 + ((n) << 2))
+#define TMR_WMER (0x0064)
+#define TMR_WMR (0x0068)
+#define TMR_WVR (0x006c)
+#define TMR_WSR (0x0070)
+#define TMR_ICR(n) (0x0074 + ((n) << 2))
+#define TMR_WICR (0x0080)
+#define TMR_CER (0x0084)
+#define TMR_CMR (0x0088)
+#define TMR_ILR(n) (0x008c + ((n) << 2))
+#define TMR_WCR (0x0098)
+#define TMR_WFAR (0x009c)
+#define TMR_WSAR (0x00A0)
+#define TMR_CVWR(n) (0x00A4 + ((n) << 2))
+
+#define TMR_CCR_CS_0(x) (((x) & 0x3) << 0)
+#define TMR_CCR_CS_1(x) (((x) & 0x7) << 2)
+#define TMR_CCR_CS_2(x) (((x) & 0x3) << 5)
+
+#endif /* __ASM_MACH_REGS_TIMERS_H */
--- /dev/null
+/*
+ * linux/arch/arm/mach-mmp/include/mach/system.h
+ *
+ * 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.
+ */
+
+#ifndef __ASM_MACH_SYSTEM_H
+#define __ASM_MACH_SYSTEM_H
+
+static inline void arch_idle(void)
+{
+ cpu_do_idle();
+}
+
+static inline void arch_reset(char mode)
+{
+ cpu_reset(0);
+}
+#endif /* __ASM_MACH_SYSTEM_H */
--- /dev/null
+/*
+ * linux/arch/arm/mach-mmp/include/mach/timex.h
+ *
+ * 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.
+ */
+
+#define CLOCK_TICK_RATE 3250000
--- /dev/null
+/*
+ * arch/arm/mach-mmp/include/mach/uncompress.h
+ *
+ * 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.
+ */
+
+#include <linux/serial_reg.h>
+#include <mach/addr-map.h>
+
+#define UART1_BASE (APB_PHYS_BASE + 0x36000)
+#define UART2_BASE (APB_PHYS_BASE + 0x17000)
+#define UART3_BASE (APB_PHYS_BASE + 0x18000)
+
+static inline void putc(char c)
+{
+ volatile unsigned long *UART = (unsigned long *)UART2_BASE;
+
+ /* UART enabled? */
+ if (!(UART[UART_IER] & UART_IER_UUE))
+ return;
+
+ while (!(UART[UART_LSR] & UART_LSR_THRE))
+ barrier();
+
+ UART[UART_TX] = c;
+}
+
+/*
+ * This does not append a newline
+ */
+static inline void flush(void)
+{
+}
+
+/*
+ * nothing to do
+ */
+#define arch_decomp_setup()
+#define arch_decomp_wdog()
--- /dev/null
+/*
+ * linux/arch/arm/mach-mmp/include/mach/vmalloc.h
+ */
+
+#define VMALLOC_END 0xfe000000
--- /dev/null
+/*
+ * linux/arch/arm/mach-mmp/irq.c
+ *
+ * Generic IRQ handling, GPIO IRQ demultiplexing, etc.
+ *
+ * Author: Bin Yang <bin.yang@marvell.com>
+ * Created: Sep 30, 2008
+ * Copyright: Marvell International Ltd.
+ *
+ * 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.
+ */
+
+#include <linux/init.h>
+#include <linux/irq.h>
+#include <linux/io.h>
+
+#include <mach/regs-icu.h>
+
+#include "common.h"
+
+#define IRQ_ROUTE_TO_AP (ICU_INT_CONF_AP_INT | ICU_INT_CONF_IRQ)
+
+#define PRIORITY_DEFAULT 0x1
+#define PRIORITY_NONE 0x0 /* means IRQ disabled */
+
+static void icu_mask_irq(unsigned int irq)
+{
+ __raw_writel(PRIORITY_NONE, ICU_INT_CONF(irq));
+}
+
+static void icu_unmask_irq(unsigned int irq)
+{
+ __raw_writel(IRQ_ROUTE_TO_AP | PRIORITY_DEFAULT, ICU_INT_CONF(irq));
+}
+
+static struct irq_chip icu_irq_chip = {
+ .name = "icu_irq",
+ .ack = icu_mask_irq,
+ .mask = icu_mask_irq,
+ .unmask = icu_unmask_irq,
+};
+
+void __init icu_init_irq(void)
+{
+ int irq;
+
+ for (irq = 0; irq < 64; irq++) {
+ icu_mask_irq(irq);
+ set_irq_chip(irq, &icu_irq_chip);
+ set_irq_handler(irq, handle_level_irq);
+ set_irq_flags(irq, IRQF_VALID);
+ }
+}
--- /dev/null
+/*
+ * linux/arch/arm/mach-mmp/pxa168.c
+ *
+ * Code specific to PXA168
+ *
+ * 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.
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/list.h>
+#include <linux/clk.h>
+
+#include <asm/mach/time.h>
+#include <mach/addr-map.h>
+#include <mach/cputype.h>
+#include <mach/regs-apbc.h>
+#include <mach/irqs.h>
+#include <mach/dma.h>
+#include <mach/devices.h>
+
+#include "common.h"
+#include "clock.h"
+
+void __init pxa168_init_irq(void)
+{
+ icu_init_irq();
+}
+
+/* APB peripheral clocks */
+static APBC_CLK(uart1, PXA168_UART1, 1, 14745600);
+static APBC_CLK(uart2, PXA168_UART2, 1, 14745600);
+
+/* device and clock bindings */
+static struct clk_lookup pxa168_clkregs[] = {
+ INIT_CLKREG(&clk_uart1, "pxa2xx-uart.0", NULL),
+ INIT_CLKREG(&clk_uart2, "pxa2xx-uart.1", NULL),
+};
+
+static int __init pxa168_init(void)
+{
+ if (cpu_is_pxa168()) {
+ pxa_init_dma(IRQ_PXA168_DMA_INT0, 32);
+ clks_register(ARRAY_AND_SIZE(pxa168_clkregs));
+ }
+
+ return 0;
+}
+postcore_initcall(pxa168_init);
+
+/* system timer - clock enabled, 3.25MHz */
+#define TIMER_CLK_RST (APBC_APBCLK | APBC_FNCLK | APBC_FNCLKSEL(3))
+
+static void __init pxa168_timer_init(void)
+{
+ /* this is early, we have to initialize the CCU registers by
+ * ourselves instead of using clk_* API. Clock rate is defined
+ * by APBC_TIMERS_CLK_RST (3.25MHz) and enabled free-running
+ */
+ __raw_writel(APBC_APBCLK | APBC_RST, APBC_PXA168_TIMERS);
+
+ /* 3.25MHz, bus/functional clock enabled, release reset */
+ __raw_writel(TIMER_CLK_RST, APBC_PXA168_TIMERS);
+
+ timer_init(IRQ_PXA168_TIMER1);
+}
+
+struct sys_timer pxa168_timer = {
+ .init = pxa168_timer_init,
+};
+
+/* on-chip devices */
+PXA168_DEVICE(uart1, "pxa2xx-uart", 0, UART1, 0xd4017000, 0x30, 21, 22);
+PXA168_DEVICE(uart2, "pxa2xx-uart", 1, UART2, 0xd4018000, 0x30, 23, 24);
--- /dev/null
+/*
+ * linux/arch/arm/mach-mmp/time.c
+ *
+ * Support for clocksource and clockevents
+ *
+ * Copyright (C) 2008 Marvell International Ltd.
+ * All rights reserved.
+ *
+ * 2008-04-11: Jason Chagas <Jason.chagas@marvell.com>
+ * 2008-10-08: Bin Yang <bin.yang@marvell.com>
+ *
+ * The timers module actually includes three timers, each timer with upto
+ * three match comparators. Timer #0 is used here in free-running mode as
+ * the clock source, and match comparator #1 used as clock event device.
+ *
+ * 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.
+ */
+
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/interrupt.h>
+#include <linux/clockchips.h>
+
+#include <linux/io.h>
+#include <linux/irq.h>
+#include <linux/sched.h>
+#include <linux/cnt32_to_63.h>
+
+#include <mach/addr-map.h>
+#include <mach/regs-timers.h>
+#include <mach/irqs.h>
+
+#include "clock.h"
+
+#define TIMERS_VIRT_BASE TIMERS1_VIRT_BASE
+
+#define MAX_DELTA (0xfffffffe)
+#define MIN_DELTA (16)
+
+#define TCR2NS_SCALE_FACTOR 10
+
+static unsigned long tcr2ns_scale;
+
+static void __init set_tcr2ns_scale(unsigned long tcr_rate)
+{
+ unsigned long long v = 1000000000ULL << TCR2NS_SCALE_FACTOR;
+ do_div(v, tcr_rate);
+ tcr2ns_scale = v;
+ /*
+ * We want an even value to automatically clear the top bit
+ * returned by cnt32_to_63() without an additional run time
+ * instruction. So if the LSB is 1 then round it up.
+ */
+ if (tcr2ns_scale & 1)
+ tcr2ns_scale++;
+}
+
+/*
+ * FIXME: the timer needs some delay to stablize the counter capture
+ */
+static inline uint32_t timer_read(void)
+{
+ int delay = 100;
+
+ __raw_writel(1, TIMERS_VIRT_BASE + TMR_CVWR(0));
+
+ while (delay--)
+ cpu_relax();
+
+ return __raw_readl(TIMERS_VIRT_BASE + TMR_CVWR(0));
+}
+
+unsigned long long sched_clock(void)
+{
+ unsigned long long v = cnt32_to_63(timer_read());
+ return (v * tcr2ns_scale) >> TCR2NS_SCALE_FACTOR;
+}
+
+static irqreturn_t timer_interrupt(int irq, void *dev_id)
+{
+ struct clock_event_device *c = dev_id;
+
+ /* disable and clear pending interrupt status */
+ __raw_writel(0x0, TIMERS_VIRT_BASE + TMR_IER(0));
+ __raw_writel(0x1, TIMERS_VIRT_BASE + TMR_ICR(0));
+ c->event_handler(c);
+ return IRQ_HANDLED;
+}
+
+static int timer_set_next_event(unsigned long delta,
+ struct clock_event_device *dev)
+{
+ unsigned long flags, next;
+
+ local_irq_save(flags);
+
+ /* clear pending interrupt status and enable */
+ __raw_writel(0x01, TIMERS_VIRT_BASE + TMR_ICR(0));
+ __raw_writel(0x01, TIMERS_VIRT_BASE + TMR_IER(0));
+
+ next = timer_read() + delta;
+ __raw_writel(next, TIMERS_VIRT_BASE + TMR_TN_MM(0, 0));
+
+ local_irq_restore(flags);
+ return 0;
+}
+
+static void timer_set_mode(enum clock_event_mode mode,
+ struct clock_event_device *dev)
+{
+ unsigned long flags;
+
+ local_irq_save(flags);
+ switch (mode) {
+ case CLOCK_EVT_MODE_ONESHOT:
+ case CLOCK_EVT_MODE_UNUSED:
+ case CLOCK_EVT_MODE_SHUTDOWN:
+ /* disable the matching interrupt */
+ __raw_writel(0x00, TIMERS_VIRT_BASE + TMR_IER(0));
+ break;
+ case CLOCK_EVT_MODE_RESUME:
+ case CLOCK_EVT_MODE_PERIODIC:
+ break;
+ }
+ local_irq_restore(flags);
+}
+
+static struct clock_event_device ckevt = {
+ .name = "clockevent",
+ .features = CLOCK_EVT_FEAT_ONESHOT,
+ .shift = 32,
+ .rating = 200,
+ .set_next_event = timer_set_next_event,
+ .set_mode = timer_set_mode,
+};
+
+static cycle_t clksrc_read(void)
+{
+ return timer_read();
+}
+
+static struct clocksource cksrc = {
+ .name = "clocksource",
+ .shift = 20,
+ .rating = 200,
+ .read = clksrc_read,
+ .mask = CLOCKSOURCE_MASK(32),
+ .flags = CLOCK_SOURCE_IS_CONTINUOUS,
+};
+
+static void __init timer_config(void)
+{
+ uint32_t ccr = __raw_readl(TIMERS_VIRT_BASE + TMR_CCR);
+ uint32_t cer = __raw_readl(TIMERS_VIRT_BASE + TMR_CER);
+ uint32_t cmr = __raw_readl(TIMERS_VIRT_BASE + TMR_CMR);
+
+ __raw_writel(cer & ~0x1, TIMERS_VIRT_BASE + TMR_CER); /* disable */
+
+ ccr &= TMR_CCR_CS_0(0x3);
+ __raw_writel(ccr, TIMERS_VIRT_BASE + TMR_CCR);
+
+ /* free-running mode */
+ __raw_writel(cmr | 0x01, TIMERS_VIRT_BASE + TMR_CMR);
+
+ __raw_writel(0x0, TIMERS_VIRT_BASE + TMR_PLCR(0)); /* free-running */
+ __raw_writel(0x7, TIMERS_VIRT_BASE + TMR_ICR(0)); /* clear status */
+ __raw_writel(0x0, TIMERS_VIRT_BASE + TMR_IER(0));
+
+ /* enable timer counter */
+ __raw_writel(cer | 0x01, TIMERS_VIRT_BASE + TMR_CER);
+}
+
+static struct irqaction timer_irq = {
+ .name = "timer",
+ .flags = IRQF_DISABLED | IRQF_TIMER | IRQF_IRQPOLL,
+ .handler = timer_interrupt,
+ .dev_id = &ckevt,
+};
+
+void __init timer_init(int irq)
+{
+ timer_config();
+
+ set_tcr2ns_scale(CLOCK_TICK_RATE);
+
+ ckevt.mult = div_sc(CLOCK_TICK_RATE, NSEC_PER_SEC, ckevt.shift);
+ ckevt.max_delta_ns = clockevent_delta2ns(MAX_DELTA, &ckevt);
+ ckevt.min_delta_ns = clockevent_delta2ns(MIN_DELTA, &ckevt);
+ ckevt.cpumask = cpumask_of(0);
+
+ cksrc.mult = clocksource_hz2mult(CLOCK_TICK_RATE, cksrc.shift);
+
+ setup_irq(irq, &timer_irq);
+
+ clocksource_register(&cksrc);
+ clockevents_register_device(&ckevt);
+}
select CPU_TLB_V4WBI if MMU
select IO_36
+# Marvell PJ1 (Mohawk)
+config CPU_MOHAWK
+ bool
+ select CPU_32v5
+ select CPU_ABRT_EV5T
+ select CPU_PABRT_NOIFAR
+ select CPU_CACHE_VIVT
+ select CPU_CP15_MMU
+ select CPU_TLB_V4WBI if MMU
+ select CPU_COPY_V4WB if MMU
+
# Feroceon
config CPU_FEROCEON
bool
config ARM_THUMB
bool "Support Thumb user binaries"
- depends on CPU_ARM720T || CPU_ARM740T || CPU_ARM920T || CPU_ARM922T || CPU_ARM925T || CPU_ARM926T || CPU_ARM940T || CPU_ARM946E || CPU_ARM1020 || CPU_ARM1020E || CPU_ARM1022 || CPU_ARM1026 || CPU_XSCALE || CPU_XSC3 || CPU_V6 || CPU_V7 || CPU_FEROCEON
+ depends on CPU_ARM720T || CPU_ARM740T || CPU_ARM920T || CPU_ARM922T || CPU_ARM925T || CPU_ARM926T || CPU_ARM940T || CPU_ARM946E || CPU_ARM1020 || CPU_ARM1020E || CPU_ARM1022 || CPU_ARM1026 || CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK || CPU_V6 || CPU_V7 || CPU_FEROCEON
default y
help
Say Y if you want to include kernel support for running user space
config CPU_BPREDICT_DISABLE
bool "Disable branch prediction"
- depends on CPU_ARM1020 || CPU_V6 || CPU_XSC3 || CPU_V7
+ depends on CPU_ARM1020 || CPU_V6 || CPU_MOHAWK || CPU_XSC3 || CPU_V7
help
Say Y here to disable branch prediction. If unsure, say N.
obj-$(CONFIG_CPU_SA1100) += proc-sa1100.o
obj-$(CONFIG_CPU_XSCALE) += proc-xscale.o
obj-$(CONFIG_CPU_XSC3) += proc-xsc3.o
+obj-$(CONFIG_CPU_MOHAWK) += proc-mohawk.o
obj-$(CONFIG_CPU_FEROCEON) += proc-feroceon.o
obj-$(CONFIG_CPU_V6) += proc-v6.o
obj-$(CONFIG_CPU_V7) += proc-v7.o
--- /dev/null
+/*
+ * linux/arch/arm/mm/proc-mohawk.S: MMU functions for Marvell PJ1 core
+ *
+ * PJ1 (codename Mohawk) is a hybrid of the xscale3 and Marvell's own core.
+ *
+ * Heavily based on proc-arm926.S and proc-xsc3.S
+ *
+ * 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/linkage.h>
+#include <linux/init.h>
+#include <asm/assembler.h>
+#include <asm/hwcap.h>
+#include <asm/pgtable-hwdef.h>
+#include <asm/pgtable.h>
+#include <asm/page.h>
+#include <asm/ptrace.h>
+#include "proc-macros.S"
+
+/*
+ * This is the maximum size of an area which will be flushed. If the
+ * area is larger than this, then we flush the whole cache.
+ */
+#define CACHE_DLIMIT 32768
+
+/*
+ * The cache line size of the L1 D cache.
+ */
+#define CACHE_DLINESIZE 32
+
+/*
+ * cpu_mohawk_proc_init()
+ */
+ENTRY(cpu_mohawk_proc_init)
+ mov pc, lr
+
+/*
+ * cpu_mohawk_proc_fin()
+ */
+ENTRY(cpu_mohawk_proc_fin)
+ stmfd sp!, {lr}
+ mov ip, #PSR_F_BIT | PSR_I_BIT | SVC_MODE
+ msr cpsr_c, ip
+ bl mohawk_flush_kern_cache_all
+ mrc p15, 0, r0, c1, c0, 0 @ ctrl register
+ bic r0, r0, #0x1800 @ ...iz...........
+ bic r0, r0, #0x0006 @ .............ca.
+ mcr p15, 0, r0, c1, c0, 0 @ disable caches
+ ldmfd sp!, {pc}
+
+/*
+ * cpu_mohawk_reset(loc)
+ *
+ * Perform a soft reset of the system. Put the CPU into the
+ * same state as it would be if it had been reset, and branch
+ * to what would be the reset vector.
+ *
+ * loc: location to jump to for soft reset
+ *
+ * (same as arm926)
+ */
+ .align 5
+ENTRY(cpu_mohawk_reset)
+ mov ip, #0
+ mcr p15, 0, ip, c7, c7, 0 @ invalidate I,D caches
+ mcr p15, 0, ip, c7, c10, 4 @ drain WB
+ mcr p15, 0, ip, c8, c7, 0 @ invalidate I & D TLBs
+ mrc p15, 0, ip, c1, c0, 0 @ ctrl register
+ bic ip, ip, #0x0007 @ .............cam
+ bic ip, ip, #0x1100 @ ...i...s........
+ mcr p15, 0, ip, c1, c0, 0 @ ctrl register
+ mov pc, r0
+
+/*
+ * cpu_mohawk_do_idle()
+ *
+ * Called with IRQs disabled
+ */
+ .align 5
+ENTRY(cpu_mohawk_do_idle)
+ mov r0, #0
+ mcr p15, 0, r0, c7, c10, 4 @ drain write buffer
+ mcr p15, 0, r0, c7, c0, 4 @ wait for interrupt
+ mov pc, lr
+
+/*
+ * flush_user_cache_all()
+ *
+ * Clean and invalidate all cache entries in a particular
+ * address space.
+ */
+ENTRY(mohawk_flush_user_cache_all)
+ /* FALLTHROUGH */
+
+/*
+ * flush_kern_cache_all()
+ *
+ * Clean and invalidate the entire cache.
+ */
+ENTRY(mohawk_flush_kern_cache_all)
+ mov r2, #VM_EXEC
+ mov ip, #0
+__flush_whole_cache:
+ mcr p15, 0, ip, c7, c14, 0 @ clean & invalidate all D cache
+ tst r2, #VM_EXEC
+ mcrne p15, 0, ip, c7, c5, 0 @ invalidate I cache
+ mcrne p15, 0, ip, c7, c10, 0 @ drain write buffer
+ mov pc, lr
+
+/*
+ * flush_user_cache_range(start, end, flags)
+ *
+ * Clean and invalidate a range of cache entries in the
+ * specified address range.
+ *
+ * - start - start address (inclusive)
+ * - end - end address (exclusive)
+ * - flags - vm_flags describing address space
+ *
+ * (same as arm926)
+ */
+ENTRY(mohawk_flush_user_cache_range)
+ mov ip, #0
+ sub r3, r1, r0 @ calculate total size
+ cmp r3, #CACHE_DLIMIT
+ bgt __flush_whole_cache
+1: tst r2, #VM_EXEC
+ mcr p15, 0, r0, c7, c14, 1 @ clean and invalidate D entry
+ mcrne p15, 0, r0, c7, c5, 1 @ invalidate I entry
+ add r0, r0, #CACHE_DLINESIZE
+ mcr p15, 0, r0, c7, c14, 1 @ clean and invalidate D entry
+ mcrne p15, 0, r0, c7, c5, 1 @ invalidate I entry
+ add r0, r0, #CACHE_DLINESIZE
+ cmp r0, r1
+ blo 1b
+ tst r2, #VM_EXEC
+ mcrne p15, 0, ip, c7, c10, 4 @ drain WB
+ mov pc, lr
+
+/*
+ * coherent_kern_range(start, end)
+ *
+ * Ensure coherency between the Icache and the Dcache in the
+ * region described by start, end. If you have non-snooping
+ * Harvard caches, you need to implement this function.
+ *
+ * - start - virtual start address
+ * - end - virtual end address
+ */
+ENTRY(mohawk_coherent_kern_range)
+ /* FALLTHROUGH */
+
+/*
+ * coherent_user_range(start, end)
+ *
+ * Ensure coherency between the Icache and the Dcache in the
+ * region described by start, end. If you have non-snooping
+ * Harvard caches, you need to implement this function.
+ *
+ * - start - virtual start address
+ * - end - virtual end address
+ *
+ * (same as arm926)
+ */
+ENTRY(mohawk_coherent_user_range)
+ bic r0, r0, #CACHE_DLINESIZE - 1
+1: mcr p15, 0, r0, c7, c10, 1 @ clean D entry
+ mcr p15, 0, r0, c7, c5, 1 @ invalidate I entry
+ add r0, r0, #CACHE_DLINESIZE
+ cmp r0, r1
+ blo 1b
+ mcr p15, 0, r0, c7, c10, 4 @ drain WB
+ mov pc, lr
+
+/*
+ * flush_kern_dcache_page(void *page)
+ *
+ * Ensure no D cache aliasing occurs, either with itself or
+ * the I cache
+ *
+ * - addr - page aligned address
+ */
+ENTRY(mohawk_flush_kern_dcache_page)
+ add r1, r0, #PAGE_SZ
+1: mcr p15, 0, r0, c7, c14, 1 @ clean+invalidate D entry
+ add r0, r0, #CACHE_DLINESIZE
+ cmp r0, r1
+ blo 1b
+ mov r0, #0
+ mcr p15, 0, r0, c7, c5, 0 @ invalidate I cache
+ mcr p15, 0, r0, c7, c10, 4 @ drain WB
+ mov pc, lr
+
+/*
+ * dma_inv_range(start, end)
+ *
+ * Invalidate (discard) the specified virtual address range.
+ * May not write back any entries. If 'start' or 'end'
+ * are not cache line aligned, those lines must be written
+ * back.
+ *
+ * - start - virtual start address
+ * - end - virtual end address
+ *
+ * (same as v4wb)
+ */
+ENTRY(mohawk_dma_inv_range)
+ tst r0, #CACHE_DLINESIZE - 1
+ mcrne p15, 0, r0, c7, c10, 1 @ clean D entry
+ tst r1, #CACHE_DLINESIZE - 1
+ mcrne p15, 0, r1, c7, c10, 1 @ clean D entry
+ bic r0, r0, #CACHE_DLINESIZE - 1
+1: mcr p15, 0, r0, c7, c6, 1 @ invalidate D entry
+ add r0, r0, #CACHE_DLINESIZE
+ cmp r0, r1
+ blo 1b
+ mcr p15, 0, r0, c7, c10, 4 @ drain WB
+ mov pc, lr
+
+/*
+ * dma_clean_range(start, end)
+ *
+ * Clean the specified virtual address range.
+ *
+ * - start - virtual start address
+ * - end - virtual end address
+ *
+ * (same as v4wb)
+ */
+ENTRY(mohawk_dma_clean_range)
+ bic r0, r0, #CACHE_DLINESIZE - 1
+1: mcr p15, 0, r0, c7, c10, 1 @ clean D entry
+ add r0, r0, #CACHE_DLINESIZE
+ cmp r0, r1
+ blo 1b
+ mcr p15, 0, r0, c7, c10, 4 @ drain WB
+ mov pc, lr
+
+/*
+ * dma_flush_range(start, end)
+ *
+ * Clean and invalidate the specified virtual address range.
+ *
+ * - start - virtual start address
+ * - end - virtual end address
+ */
+ENTRY(mohawk_dma_flush_range)
+ bic r0, r0, #CACHE_DLINESIZE - 1
+1:
+ mcr p15, 0, r0, c7, c14, 1 @ clean+invalidate D entry
+ add r0, r0, #CACHE_DLINESIZE
+ cmp r0, r1
+ blo 1b
+ mcr p15, 0, r0, c7, c10, 4 @ drain WB
+ mov pc, lr
+
+ENTRY(mohawk_cache_fns)
+ .long mohawk_flush_kern_cache_all
+ .long mohawk_flush_user_cache_all
+ .long mohawk_flush_user_cache_range
+ .long mohawk_coherent_kern_range
+ .long mohawk_coherent_user_range
+ .long mohawk_flush_kern_dcache_page
+ .long mohawk_dma_inv_range
+ .long mohawk_dma_clean_range
+ .long mohawk_dma_flush_range
+
+ENTRY(cpu_mohawk_dcache_clean_area)
+1: mcr p15, 0, r0, c7, c10, 1 @ clean D entry
+ add r0, r0, #CACHE_DLINESIZE
+ subs r1, r1, #CACHE_DLINESIZE
+ bhi 1b
+ mcr p15, 0, r0, c7, c10, 4 @ drain WB
+ mov pc, lr
+
+/*
+ * cpu_mohawk_switch_mm(pgd)
+ *
+ * Set the translation base pointer to be as described by pgd.
+ *
+ * pgd: new page tables
+ */
+ .align 5
+ENTRY(cpu_mohawk_switch_mm)
+ mov ip, #0
+ mcr p15, 0, ip, c7, c14, 0 @ clean & invalidate all D cache
+ mcr p15, 0, ip, c7, c5, 0 @ invalidate I cache
+ mcr p15, 0, ip, c7, c10, 4 @ drain WB
+ orr r0, r0, #0x18 @ cache the page table in L2
+ mcr p15, 0, r0, c2, c0, 0 @ load page table pointer
+ mcr p15, 0, ip, c8, c7, 0 @ invalidate I & D TLBs
+ mov pc, lr
+
+/*
+ * cpu_mohawk_set_pte_ext(ptep, pte, ext)
+ *
+ * Set a PTE and flush it out
+ */
+ .align 5
+ENTRY(cpu_mohawk_set_pte_ext)
+ armv3_set_pte_ext
+ mov r0, r0
+ mcr p15, 0, r0, c7, c10, 1 @ clean D entry
+ mcr p15, 0, r0, c7, c10, 4 @ drain WB
+ mov pc, lr
+
+ __INIT
+
+ .type __mohawk_setup, #function
+__mohawk_setup:
+ mov r0, #0
+ mcr p15, 0, r0, c7, c7 @ invalidate I,D caches
+ mcr p15, 0, r0, c7, c10, 4 @ drain write buffer
+ mcr p15, 0, r0, c8, c7 @ invalidate I,D TLBs
+ orr r4, r4, #0x18 @ cache the page table in L2
+ mcr p15, 0, r4, c2, c0, 0 @ load page table pointer
+
+ mov r0, #0 @ don't allow CP access
+ mcr p15, 0, r0, c15, c1, 0 @ write CP access register
+
+ adr r5, mohawk_crval
+ ldmia r5, {r5, r6}
+ mrc p15, 0, r0, c1, c0 @ get control register
+ bic r0, r0, r5
+ orr r0, r0, r6
+ mov pc, lr
+
+ .size __mohawk_setup, . - __mohawk_setup
+
+ /*
+ * R
+ * .RVI ZFRS BLDP WCAM
+ * .011 1001 ..00 0101
+ *
+ */
+ .type mohawk_crval, #object
+mohawk_crval:
+ crval clear=0x00007f3f, mmuset=0x00003905, ucset=0x00001134
+
+ __INITDATA
+
+/*
+ * Purpose : Function pointers used to access above functions - all calls
+ * come through these
+ */
+ .type mohawk_processor_functions, #object
+mohawk_processor_functions:
+ .word v5t_early_abort
+ .word pabort_noifar
+ .word cpu_mohawk_proc_init
+ .word cpu_mohawk_proc_fin
+ .word cpu_mohawk_reset
+ .word cpu_mohawk_do_idle
+ .word cpu_mohawk_dcache_clean_area
+ .word cpu_mohawk_switch_mm
+ .word cpu_mohawk_set_pte_ext
+ .size mohawk_processor_functions, . - mohawk_processor_functions
+
+ .section ".rodata"
+
+ .type cpu_arch_name, #object
+cpu_arch_name:
+ .asciz "armv5te"
+ .size cpu_arch_name, . - cpu_arch_name
+
+ .type cpu_elf_name, #object
+cpu_elf_name:
+ .asciz "v5"
+ .size cpu_elf_name, . - cpu_elf_name
+
+ .type cpu_mohawk_name, #object
+cpu_mohawk_name:
+ .asciz "Marvell 88SV331x"
+ .size cpu_mohawk_name, . - cpu_mohawk_name
+
+ .align
+
+ .section ".proc.info.init", #alloc, #execinstr
+
+ .type __88sv331x_proc_info,#object
+__88sv331x_proc_info:
+ .long 0x56158000 @ Marvell 88SV331x (MOHAWK)
+ .long 0xfffff000
+ .long PMD_TYPE_SECT | \
+ PMD_SECT_BUFFERABLE | \
+ PMD_SECT_CACHEABLE | \
+ PMD_BIT4 | \
+ PMD_SECT_AP_WRITE | \
+ PMD_SECT_AP_READ
+ .long PMD_TYPE_SECT | \
+ PMD_BIT4 | \
+ PMD_SECT_AP_WRITE | \
+ PMD_SECT_AP_READ
+ b __mohawk_setup
+ .long cpu_arch_name
+ .long cpu_elf_name
+ .long HWCAP_SWP|HWCAP_HALF|HWCAP_THUMB|HWCAP_FAST_MULT|HWCAP_EDSP
+ .long cpu_mohawk_name
+ .long mohawk_processor_functions
+ .long v4wbi_tlb_fns
+ .long v4wb_user_fns
+ .long mohawk_cache_fns
+ .size __88sv331x_proc_info, . - __88sv331x_proc_info
projects / linux-2.6-omap-h63xx.git / commitdiff