[PATCH v2 2/8] ARM: S5PV310: Add new CPU initialization support

Kyungmin Park kmpark at infradead.org
Fri Jul 16 06:58:27 EDT 2010


On Fri, Jul 16, 2010 at 5:58 PM, Kukjin Kim <kgene.kim at samsung.com> wrote:
> From: Changhwan Youn <chaos.youn at samsung.com>
>
> This patch adds Samsung's S5PV310/S5PC210 CPU support.
> The S5PV310/S5PC210 integrates a ARM Cortex A9 multi-core.
>
> Signed-off-by: Changhwan Youn <chaos.youn at samsung.com>
> Signed-off-by: Jongpill Lee <boyko.lee at samsung.com>
> Signed-off-by: Kukjin Kim <kgene.kim at samsung.com>
> ---
>  arch/arm/mach-s5pv310/cpu.c                      |  122 +++++++++++++
>  arch/arm/mach-s5pv310/headsmp.S                  |   41 ++++
>  arch/arm/mach-s5pv310/include/mach/debug-macro.S |   36 ++++
>  arch/arm/mach-s5pv310/include/mach/entry-macro.S |   84 +++++++++
>  arch/arm/mach-s5pv310/include/mach/gpio.h        |  135 ++++++++++++++
>  arch/arm/mach-s5pv310/include/mach/hardware.h    |   18 ++
>  arch/arm/mach-s5pv310/include/mach/io.h          |   26 +++
>  arch/arm/mach-s5pv310/include/mach/map.h         |   66 +++++++
>  arch/arm/mach-s5pv310/include/mach/memory.h      |   22 +++
>  arch/arm/mach-s5pv310/include/mach/smp.h         |   29 +++
>  arch/arm/mach-s5pv310/include/mach/system.h      |   22 +++
>  arch/arm/mach-s5pv310/include/mach/timex.h       |   29 +++
>  arch/arm/mach-s5pv310/include/mach/uncompress.h  |   27 +++
>  arch/arm/mach-s5pv310/include/mach/vmalloc.h     |   22 +++
>  arch/arm/mach-s5pv310/init.c                     |   41 ++++
>  arch/arm/mach-s5pv310/platsmp.c                  |  212 ++++++++++++++++++++++
>  arch/arm/mach-s5pv310/setup-i2c0.c               |   20 ++
>  arch/arm/plat-s5p/cpu.c                          |   12 ++
>  arch/arm/plat-s5p/include/plat/map-s5p.h         |   12 ++
>  arch/arm/plat-s5p/include/plat/s5pv310.h         |   33 ++++
>  20 files changed, 1009 insertions(+), 0 deletions(-)
>  create mode 100644 arch/arm/mach-s5pv310/cpu.c
>  create mode 100644 arch/arm/mach-s5pv310/headsmp.S
>  create mode 100644 arch/arm/mach-s5pv310/include/mach/debug-macro.S
>  create mode 100644 arch/arm/mach-s5pv310/include/mach/entry-macro.S
>  create mode 100644 arch/arm/mach-s5pv310/include/mach/gpio.h
>  create mode 100644 arch/arm/mach-s5pv310/include/mach/hardware.h
>  create mode 100644 arch/arm/mach-s5pv310/include/mach/io.h
>  create mode 100644 arch/arm/mach-s5pv310/include/mach/map.h
>  create mode 100644 arch/arm/mach-s5pv310/include/mach/memory.h
>  create mode 100644 arch/arm/mach-s5pv310/include/mach/smp.h
>  create mode 100644 arch/arm/mach-s5pv310/include/mach/system.h
>  create mode 100644 arch/arm/mach-s5pv310/include/mach/timex.h
>  create mode 100644 arch/arm/mach-s5pv310/include/mach/uncompress.h
>  create mode 100644 arch/arm/mach-s5pv310/include/mach/vmalloc.h
>  create mode 100644 arch/arm/mach-s5pv310/init.c
>  create mode 100644 arch/arm/mach-s5pv310/platsmp.c
>  create mode 100644 arch/arm/mach-s5pv310/setup-i2c0.c
>  create mode 100644 arch/arm/plat-s5p/include/plat/s5pv310.h
>
> diff --git a/arch/arm/mach-s5pv310/cpu.c b/arch/arm/mach-s5pv310/cpu.c
> new file mode 100644
> index 0000000..196c9f1
> --- /dev/null
> +++ b/arch/arm/mach-s5pv310/cpu.c
> @@ -0,0 +1,122 @@
> +/* linux/arch/arm/mach-s5pv310/cpu.c
> + *
> + * Copyright (c) 2010 Samsung Electronics Co., Ltd.
> + *             http://www.samsung.com/
> + *
> + * 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/sched.h>
> +#include <linux/sysdev.h>
> +
> +#include <asm/mach/map.h>
> +#include <asm/mach/irq.h>
> +
> +#include <asm/proc-fns.h>
> +
> +#include <plat/cpu.h>
> +#include <plat/clock.h>
> +#include <plat/s5pv310.h>
> +
> +#include <mach/regs-irq.h>
> +
> +void __iomem *gic_cpu_base_addr;
> +
> +extern int combiner_init(unsigned int combiner_nr, void __iomem *base,
> +                        unsigned int irq_start);
> +extern void combiner_cascade_irq(unsigned int combiner_nr, unsigned int irq);
> +
> +/* Initial IO mappings */
> +static struct map_desc s5pv310_iodesc[] __initdata = {
> +       {
> +               .virtual        = (unsigned long)S5P_VA_COREPERI_BASE,
> +               .pfn            = __phys_to_pfn(S5PV310_PA_COREPERI),
> +               .length         = SZ_8K,
> +               .type           = MT_DEVICE,
> +       }, {
> +               .virtual        = (unsigned long)S5P_VA_COMBINER_BASE,
> +               .pfn            = __phys_to_pfn(S5PV310_PA_COMBINER),
> +               .length         = SZ_4K,
> +               .type           = MT_DEVICE,
> +       }, {
> +               .virtual        = (unsigned long)S5P_VA_L2CC,
> +               .pfn            = __phys_to_pfn(S5PV310_PA_L2CC),
> +               .length         = SZ_4K,
> +               .type           = MT_DEVICE,
> +       },
> +};
> +
> +static void s5pv310_idle(void)
> +{
> +       if (!need_resched())
> +               cpu_do_idle();
> +
> +       local_irq_enable();
> +}
> +
> +/* s5pv310_map_io
> + *
> + * register the standard cpu IO areas
> +*/
> +void __init s5pv310_map_io(void)
> +{
> +       iotable_init(s5pv310_iodesc, ARRAY_SIZE(s5pv310_iodesc));
> +}
> +
> +void __init s5pv310_init_clocks(int xtal)
> +{
> +       printk(KERN_DEBUG "%s: initializing clocks\n", __func__);
> +
> +       s3c24xx_register_baseclocks(xtal);
> +       s5p_register_clocks(xtal);
> +       s5pv310_register_clocks();
> +       s5pv310_setup_clocks();
> +}
> +
> +void __init s5pv310_init_irq(void)
> +{
> +       int irq;
> +
> +       gic_cpu_base_addr = S5P_VA_GIC_CPU;
> +       gic_dist_init(0, S5P_VA_GIC_DIST, IRQ_LOCALTIMER);
> +       gic_cpu_init(0, S5P_VA_GIC_CPU);
> +
> +       for (irq = 0; irq < MAX_COMBINER_NR; irq++) {
> +               combiner_init(irq, (void __iomem *)S5P_VA_COMBINER(irq),
> +                               COMBINER_IRQ(irq, 0));
> +               combiner_cascade_irq(irq, IRQ_SPI(irq));
> +       }
> +
> +       /* The parameters of s5p_init_irq() are for VIC init.
> +        * Theses parameters should be NULL and 0 because S5PV310
> +        * uses GIC instead of VIC.
> +        */
> +       s5p_init_irq(NULL, 0);
> +}
> +
> +struct sysdev_class s5pv310_sysclass = {
> +       .name   = "s5pv310-core",
> +};
> +
> +static struct sys_device s5pv310_sysdev = {
> +       .cls    = &s5pv310_sysclass,
> +};
> +
> +static int __init s5pv310_core_init(void)
> +{
> +       return sysdev_class_register(&s5pv310_sysclass);
> +}
> +
> +core_initcall(s5pv310_core_init);

How about to call core_init at below?
To make a single kernel we need to remove core_initcall before cpu ID detection.

> +
> +int __init s5pv310_init(void)
> +{
> +       printk(KERN_INFO "S5PV310: Initializing architecture\n");
> +
> +       /* set idle function */
> +       pm_idle = s5pv310_idle;
> +
> +       return sysdev_register(&s5pv310_sysdev);
> +}
> diff --git a/arch/arm/mach-s5pv310/headsmp.S b/arch/arm/mach-s5pv310/headsmp.S
> new file mode 100644
> index 0000000..164b7b0
> --- /dev/null
> +++ b/arch/arm/mach-s5pv310/headsmp.S
> @@ -0,0 +1,41 @@
> +/*
> + *  linux/arch/arm/mach-s5pv310/headsmp.S
> + *
> + *  Cloned from linux/arch/arm/mach-realview/headsmp.S
> + *
> + *  Copyright (c) 2003 ARM Limited
> + *  All Rights Reserved
> + *
> + * 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/linkage.h>
> +#include <linux/init.h>
> +
> +       __INIT
> +
> +/*
> + * s5pv310 specific entry point for secondary CPUs.  This provides
> + * a "holding pen" into which all secondary cores are held until we're
> + * ready for them to initialise.
> + */
> +ENTRY(s5pv310_secondary_startup)
> +       mrc     p15, 0, r0, c0, c0, 5
> +       and     r0, r0, #15
> +       adr     r4, 1f
> +       ldmia   r4, {r5, r6}
> +       sub     r4, r4, r5
> +       add     r6, r6, r4
> +pen:   ldr     r7, [r6]
> +       cmp     r7, r0
> +       bne     pen
> +
> +       /*
> +        * we've been released from the holding pen: secondary_stack
> +        * should now contain the SVC stack for this core
> +        */
> +       b       secondary_startup
> +
> +1:     .long   .
> +       .long   pen_release
> diff --git a/arch/arm/mach-s5pv310/include/mach/debug-macro.S b/arch/arm/mach-s5pv310/include/mach/debug-macro.S
> new file mode 100644
> index 0000000..6fb3893
> --- /dev/null
> +++ b/arch/arm/mach-s5pv310/include/mach/debug-macro.S
> @@ -0,0 +1,36 @@
> +/* linux/arch/arm/mach-s5pv310/include/mach/debug-macro.S
> + *
> + * Copyright (c) 2010 Samsung Electronics Co., Ltd.
> + *             http://www.samsung.com/
> + *
> + * Based on arch/arm/mach-s3c6400/include/mach/debug-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.
> +*/
> +
> +/* pull in the relevant register and map files. */
> +
> +#include <mach/map.h>
> +
> +       /* note, for the boot process to work we have to keep the UART
> +        * virtual address aligned to an 1MiB boundary for the L1
> +        * mapping the head code makes. We keep the UART virtual address
> +        * aligned and add in the offset when we load the value here.
> +        */
> +
> +       .macro addruart, rx, tmp
> +               mrc     p15, 0, \rx, c1, c0
> +               tst     \rx, #1
> +               ldreq   \rx, = S3C_PA_UART
> +               ldrne   \rx, = S3C_VA_UART
> +#if CONFIG_DEBUG_S3C_UART != 0
> +               add     \rx, \rx, #(0x10000 * CONFIG_DEBUG_S3C_UART)
> +#endif
> +       .endm
> +
> +#define fifo_full fifo_full_s5pv210
> +#define fifo_level fifo_level_s5pv210
> +
> +#include <plat/debug-macro.S>
> diff --git a/arch/arm/mach-s5pv310/include/mach/entry-macro.S b/arch/arm/mach-s5pv310/include/mach/entry-macro.S
> new file mode 100644
> index 0000000..e600e1d
> --- /dev/null
> +++ b/arch/arm/mach-s5pv310/include/mach/entry-macro.S
> @@ -0,0 +1,84 @@
> +/* arch/arm/mach-s5pv310/include/mach/entry-macro.S
> + *
> + * Cloned from arch/arm/mach-realview/include/mach/entry-macro.S
> + *
> + * Low-level IRQ helper macros for S5PV310 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 <asm/hardware/gic.h>
> +
> +               .macro  disable_fiq
> +               .endm
> +
> +               .macro  get_irqnr_preamble, base, tmp
> +               ldr     \base, =gic_cpu_base_addr
> +               ldr     \base, [\base]
> +               .endm
> +
> +               .macro  arch_ret_to_user, tmp1, tmp2
> +               .endm
> +
> +               /*
> +                * The interrupt numbering scheme is defined in the
> +                * interrupt controller spec.  To wit:
> +                *
> +                * Interrupts 0-15 are IPI
> +                * 16-28 are reserved
> +                * 29-31 are local.  We allow 30 to be used for the watchdog.
> +                * 32-1020 are global
> +                * 1021-1022 are reserved
> +                * 1023 is "spurious" (no interrupt)
> +                *
> +                * For now, we ignore all local interrupts so only return an interrupt if it's
> +                * between 30 and 1020.  The test_for_ipi routine below will pick up on IPIs.
> +                *
> +                * A simple read from the controller will tell us the number of the highest
> +                 * priority enabled interrupt.  We then just need to check whether it is in the
> +                * valid range for an IRQ (30-1020 inclusive).
> +                */
> +
> +               .macro  get_irqnr_and_base, irqnr, irqstat, base, tmp
> +
> +               ldr     \irqstat, [\base, #GIC_CPU_INTACK] /* bits 12-10 = src CPU, 9-0 = int # */
> +
> +               ldr     \tmp, =1021
> +
> +               bic     \irqnr, \irqstat, #0x1c00
> +
> +               cmp     \irqnr, #29
> +               cmpcc   \irqnr, \irqnr
> +               cmpne   \irqnr, \tmp
> +               cmpcs   \irqnr, \irqnr
> +               addne   \irqnr, \irqnr, #32
> +
> +               .endm
> +
> +               /* We assume that irqstat (the raw value of the IRQ acknowledge
> +                * register) is preserved from the macro above.
> +                * If there is an IPI, we immediately signal end of interrupt on the
> +                * controller, since this requires the original irqstat value which
> +                * we won't easily be able to recreate later.
> +                */
> +
> +               .macro test_for_ipi, irqnr, irqstat, base, tmp
> +               bic     \irqnr, \irqstat, #0x1c00
> +               cmp     \irqnr, #16
> +               strcc   \irqstat, [\base, #GIC_CPU_EOI]
> +               cmpcs   \irqnr, \irqnr
> +               .endm
> +
> +               /* As above, this assumes that irqstat and base are preserved.. */
> +
> +               .macro test_for_ltirq, irqnr, irqstat, base, tmp
> +               bic     \irqnr, \irqstat, #0x1c00
> +               mov     \tmp, #0
> +               cmp     \irqnr, #29
> +               moveq   \tmp, #1
> +               streq   \irqstat, [\base, #GIC_CPU_EOI]
> +               cmp     \tmp, #0
> +               .endm
> diff --git a/arch/arm/mach-s5pv310/include/mach/gpio.h b/arch/arm/mach-s5pv310/include/mach/gpio.h
> new file mode 100644
> index 0000000..20cb80c
> --- /dev/null
> +++ b/arch/arm/mach-s5pv310/include/mach/gpio.h
> @@ -0,0 +1,135 @@
> +/* linux/arch/arm/mach-s5pv310/include/mach/gpio.h
> + *
> + * Copyright (c) 2010 Samsung Electronics Co., Ltd.
> + *             http://www.samsung.com/
> + *
> + * S5PV310 - GPIO lib support
> + *
> + * 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_ARCH_GPIO_H
> +#define __ASM_ARCH_GPIO_H __FILE__
> +
> +#define gpio_get_value __gpio_get_value
> +#define gpio_set_value __gpio_set_value
> +#define gpio_cansleep  __gpio_cansleep
> +#define gpio_to_irq    __gpio_to_irq
> +
> +/* Practically, GPIO banks upto GPZ are the configurable gpio banks */
> +
> +/* GPIO bank sizes */
> +#define S5PV310_GPIO_A0_NR     (8)
> +#define S5PV310_GPIO_A1_NR     (6)
> +#define S5PV310_GPIO_B_NR      (8)
> +#define S5PV310_GPIO_C0_NR     (5)
> +#define S5PV310_GPIO_C1_NR     (5)
> +#define S5PV310_GPIO_D0_NR     (4)
> +#define S5PV310_GPIO_D1_NR     (4)
> +#define S5PV310_GPIO_E0_NR     (5)
> +#define S5PV310_GPIO_E1_NR     (8)
> +#define S5PV310_GPIO_E2_NR     (6)
> +#define S5PV310_GPIO_E3_NR     (8)
> +#define S5PV310_GPIO_E4_NR     (8)
> +#define S5PV310_GPIO_F0_NR     (8)
> +#define S5PV310_GPIO_F1_NR     (8)
> +#define S5PV310_GPIO_F2_NR     (8)
> +#define S5PV310_GPIO_F3_NR     (6)
> +#define S5PV310_GPIO_J0_NR     (8)
> +#define S5PV310_GPIO_J1_NR     (5)
> +#define S5PV310_GPIO_K0_NR     (7)
> +#define S5PV310_GPIO_K1_NR     (7)
> +#define S5PV310_GPIO_K2_NR     (7)
> +#define S5PV310_GPIO_K3_NR     (7)
> +#define S5PV310_GPIO_L0_NR     (8)
> +#define S5PV310_GPIO_L1_NR     (3)
> +#define S5PV310_GPIO_L2_NR     (8)
> +#define S5PV310_GPIO_X0_NR     (8)
> +#define S5PV310_GPIO_X1_NR     (8)
> +#define S5PV310_GPIO_X2_NR     (8)
> +#define S5PV310_GPIO_X3_NR     (8)
> +#define S5PV310_GPIO_Z_NR      (7)
> +
> +/* GPIO bank numbers */
> +
> +#define S5PV310_GPIO_NEXT(__gpio) \
> +       ((__gpio##_START) + (__gpio##_NR) + CONFIG_S3C_GPIO_SPACE + 1)
> +
> +enum s5p_gpio_number {
> +       S5PV310_GPIO_A0_START   = 0,
> +       S5PV310_GPIO_A1_START   = S5PV310_GPIO_NEXT(S5PV310_GPIO_A0),
> +       S5PV310_GPIO_B_START    = S5PV310_GPIO_NEXT(S5PV310_GPIO_A1),
> +       S5PV310_GPIO_C0_START   = S5PV310_GPIO_NEXT(S5PV310_GPIO_B),
> +       S5PV310_GPIO_C1_START   = S5PV310_GPIO_NEXT(S5PV310_GPIO_C0),
> +       S5PV310_GPIO_D0_START   = S5PV310_GPIO_NEXT(S5PV310_GPIO_C1),
> +       S5PV310_GPIO_D1_START   = S5PV310_GPIO_NEXT(S5PV310_GPIO_D0),
> +       S5PV310_GPIO_E0_START   = S5PV310_GPIO_NEXT(S5PV310_GPIO_D1),
> +       S5PV310_GPIO_E1_START   = S5PV310_GPIO_NEXT(S5PV310_GPIO_E0),
> +       S5PV310_GPIO_E2_START   = S5PV310_GPIO_NEXT(S5PV310_GPIO_E1),
> +       S5PV310_GPIO_E3_START   = S5PV310_GPIO_NEXT(S5PV310_GPIO_E2),
> +       S5PV310_GPIO_E4_START   = S5PV310_GPIO_NEXT(S5PV310_GPIO_E3),
> +       S5PV310_GPIO_F0_START   = S5PV310_GPIO_NEXT(S5PV310_GPIO_E4),
> +       S5PV310_GPIO_F1_START   = S5PV310_GPIO_NEXT(S5PV310_GPIO_F0),
> +       S5PV310_GPIO_F2_START   = S5PV310_GPIO_NEXT(S5PV310_GPIO_F1),
> +       S5PV310_GPIO_F3_START   = S5PV310_GPIO_NEXT(S5PV310_GPIO_F2),
> +       S5PV310_GPIO_J0_START   = S5PV310_GPIO_NEXT(S5PV310_GPIO_F3),
> +       S5PV310_GPIO_J1_START   = S5PV310_GPIO_NEXT(S5PV310_GPIO_J0),
> +       S5PV310_GPIO_K0_START   = S5PV310_GPIO_NEXT(S5PV310_GPIO_J1),
> +       S5PV310_GPIO_K1_START   = S5PV310_GPIO_NEXT(S5PV310_GPIO_K0),
> +       S5PV310_GPIO_K2_START   = S5PV310_GPIO_NEXT(S5PV310_GPIO_K1),
> +       S5PV310_GPIO_K3_START   = S5PV310_GPIO_NEXT(S5PV310_GPIO_K2),
> +       S5PV310_GPIO_L0_START   = S5PV310_GPIO_NEXT(S5PV310_GPIO_K3),
> +       S5PV310_GPIO_L1_START   = S5PV310_GPIO_NEXT(S5PV310_GPIO_L0),
> +       S5PV310_GPIO_L2_START   = S5PV310_GPIO_NEXT(S5PV310_GPIO_L1),
> +       S5PV310_GPIO_X0_START   = S5PV310_GPIO_NEXT(S5PV310_GPIO_L2),
> +       S5PV310_GPIO_X1_START   = S5PV310_GPIO_NEXT(S5PV310_GPIO_X0),
> +       S5PV310_GPIO_X2_START   = S5PV310_GPIO_NEXT(S5PV310_GPIO_X1),
> +       S5PV310_GPIO_X3_START   = S5PV310_GPIO_NEXT(S5PV310_GPIO_X2),
> +       S5PV310_GPIO_Z_START    = S5PV310_GPIO_NEXT(S5PV310_GPIO_X3),
> +};
> +
> +/* S5PV310 GPIO number definitions */
> +#define S5PV310_GPA0(_nr)      (S5PV310_GPIO_A0_START + (_nr))
> +#define S5PV310_GPA1(_nr)      (S5PV310_GPIO_A1_START + (_nr))
> +#define S5PV310_GPB(_nr)       (S5PV310_GPIO_B_START + (_nr))
> +#define S5PV310_GPC0(_nr)      (S5PV310_GPIO_C0_START + (_nr))
> +#define S5PV310_GPC1(_nr)      (S5PV310_GPIO_C1_START + (_nr))
> +#define S5PV310_GPD0(_nr)      (S5PV310_GPIO_D0_START + (_nr))
> +#define S5PV310_GPD1(_nr)      (S5PV310_GPIO_D1_START + (_nr))
> +#define S5PV310_GPE0(_nr)      (S5PV310_GPIO_E0_START + (_nr))
> +#define S5PV310_GPE1(_nr)      (S5PV310_GPIO_E1_START + (_nr))
> +#define S5PV310_GPE2(_nr)      (S5PV310_GPIO_E2_START + (_nr))
> +#define S5PV310_GPE3(_nr)      (S5PV310_GPIO_E3_START + (_nr))
> +#define S5PV310_GPE4(_nr)      (S5PV310_GPIO_E4_START + (_nr))
> +#define S5PV310_GPF0(_nr)      (S5PV310_GPIO_F0_START + (_nr))
> +#define S5PV310_GPF1(_nr)      (S5PV310_GPIO_F1_START + (_nr))
> +#define S5PV310_GPF2(_nr)      (S5PV310_GPIO_F2_START + (_nr))
> +#define S5PV310_GPF3(_nr)      (S5PV310_GPIO_F3_START + (_nr))
> +#define S5PV310_GPJ0(_nr)      (S5PV310_GPIO_J0_START + (_nr))
> +#define S5PV310_GPJ1(_nr)      (S5PV310_GPIO_J1_START + (_nr))
> +#define S5PV310_GPK0(_nr)      (S5PV310_GPIO_K0_START + (_nr))
> +#define S5PV310_GPK1(_nr)      (S5PV310_GPIO_K1_START + (_nr))
> +#define S5PV310_GPK2(_nr)      (S5PV310_GPIO_K2_START + (_nr))
> +#define S5PV310_GPK3(_nr)      (S5PV310_GPIO_K3_START + (_nr))
> +#define S5PV310_GPL0(_nr)      (S5PV310_GPIO_L0_START + (_nr))
> +#define S5PV310_GPL1(_nr)      (S5PV310_GPIO_L1_START + (_nr))
> +#define S5PV310_GPL2(_nr)      (S5PV310_GPIO_L2_START + (_nr))
> +#define S5PV310_GPX0(_nr)      (S5PV310_GPIO_X0_START + (_nr))
> +#define S5PV310_GPX1(_nr)      (S5PV310_GPIO_X1_START + (_nr))
> +#define S5PV310_GPX2(_nr)      (S5PV310_GPIO_X2_START + (_nr))
> +#define S5PV310_GPX3(_nr)      (S5PV310_GPIO_X3_START + (_nr))
> +#define S5PV310_GPZ(_nr)       (S5PV310_GPIO_Z_START + (_nr))
> +
> +/* the end of the S5PV310 specific gpios */
> +#define S5PV310_GPIO_END       (S5PV310_GPZ(S5PV310_GPIO_Z_NR) + 1)
> +#define S3C_GPIO_END           S5PV310_GPIO_END
> +
> +/* define the number of gpios we need to the one after the GPZ() range */
> +#define ARCH_NR_GPIOS          (S5PV310_GPZ(S5PV310_GPIO_Z_NR) +       \
> +                                CONFIG_SAMSUNG_GPIO_EXTRA + 1)
> +
> +#include <asm-generic/gpio.h>
> +
> +#endif /* __ASM_ARCH_GPIO_H */
> diff --git a/arch/arm/mach-s5pv310/include/mach/hardware.h b/arch/arm/mach-s5pv310/include/mach/hardware.h
> new file mode 100644
> index 0000000..28ff988
> --- /dev/null
> +++ b/arch/arm/mach-s5pv310/include/mach/hardware.h
> @@ -0,0 +1,18 @@
> +/* linux/arch/arm/mach-s5pv310/include/mach/hardware.h
> + *
> + * Copyright (c) 2010 Samsung Electronics Co., Ltd.
> + *             http://www.samsung.com/
> + *
> + * S5PV310 - Hardware support
> + *
> + * 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_ARCH_HARDWARE_H
> +#define __ASM_ARCH_HARDWARE_H __FILE__
> +
> +/* currently nothing here, placeholder */
> +
> +#endif /* __ASM_ARCH_HARDWARE_H */
> diff --git a/arch/arm/mach-s5pv310/include/mach/io.h b/arch/arm/mach-s5pv310/include/mach/io.h
> new file mode 100644
> index 0000000..8a7f912
> --- /dev/null
> +++ b/arch/arm/mach-s5pv310/include/mach/io.h
> @@ -0,0 +1,26 @@
> +/* linux/arch/arm/mach-s5pv310/include/mach/io.h
> + *
> + * Copyright (c) 2010 Samsung Electronics Co., Ltd.
> + *             http://www.samsung.com/
> + *
> + * Copyright 2008-2010 Ben Dooks <ben-linux at fluff.org>
> + *
> + * Based on arch/arm/mach-s5p6442/include/mach/io.h
> + *
> + * Default IO routines for S5PV310
> + *
> + * 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_ARM_ARCH_IO_H
> +#define __ASM_ARM_ARCH_IO_H __FILE__
> +
> +/* No current ISA/PCI bus support. */
> +#define __io(a)                __typesafe_io(a)
> +#define __mem_pci(a)   (a)
> +
> +#define IO_SPACE_LIMIT (0xFFFFFFFF)
> +
> +#endif /* __ASM_ARM_ARCH_IO_H */
> diff --git a/arch/arm/mach-s5pv310/include/mach/map.h b/arch/arm/mach-s5pv310/include/mach/map.h
> new file mode 100644
> index 0000000..50e0901
> --- /dev/null
> +++ b/arch/arm/mach-s5pv310/include/mach/map.h
> @@ -0,0 +1,66 @@
> +/* linux/arch/arm/mach-s5pv310/include/mach/map.h
> + *
> + * Copyright (c) 2010 Samsung Electronics Co., Ltd.
> + *             http://www.samsung.com/
> + *
> + * S5PV310 - Memory 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_ARCH_MAP_H
> +#define __ASM_ARCH_MAP_H __FILE__
> +
> +#include <plat/map-base.h>
> +
> +/*
> + * S5PV310 UART offset is 0x10000 but the older S5P SoCs are 0x400.
> + * So need to define it, and here is to avoid redefinition warning.
> + */
> +#define S3C_UART_OFFSET                        (0x10000)
> +
> +#include <plat/map-s5p.h>
> +
> +#define S5PV310_PA_CHIPID              (0x10000000)
> +#define S5P_PA_CHIPID                  S5PV310_PA_CHIPID
> +
> +#define S5PV310_PA_SYSCON              (0x10020000)
> +#define S5P_PA_SYSCON                  S5PV310_PA_SYSCON
> +
> +#define S5PV310_PA_COMBINER            (0x10448000)
> +
> +#define S5PV310_PA_COREPERI            (0x10500000)
> +#define S5PV310_PA_GIC_CPU             (0x10500100)
> +#define S5PV310_PA_TWD                 (0x10500600)
> +#define S5PV310_PA_GIC_DIST            (0x10501000)
> +#define S5PV310_PA_L2CC                        (0x10502000)
> +
> +#define S5PV310_PA_GPIO                        (0x11000000)
> +#define S5P_PA_GPIO                    S5PV310_PA_GPIO
> +
> +#define S5PV310_PA_UART                        (0x13800000)
> +
> +#define S5P_PA_UART(x)                 (S5PV310_PA_UART + ((x) * S3C_UART_OFFSET))
> +#define S5P_PA_UART0                   S5P_PA_UART(0)
> +#define S5P_PA_UART1                   S5P_PA_UART(1)
> +#define S5P_PA_UART2                   S5P_PA_UART(2)
> +#define S5P_PA_UART3                   S5P_PA_UART(3)
> +#define S5P_PA_UART4                   S5P_PA_UART(4)
> +
> +#define S5P_SZ_UART                    SZ_256
> +
> +#define S5PV310_PA_IIC0                        (0x13860000)
> +
> +#define S5PV310_PA_TIMER               (0x139D0000)
> +#define S5P_PA_TIMER                   S5PV310_PA_TIMER
> +
> +#define S5PV310_PA_SDRAM               (0x40000000)
> +#define S5P_PA_SDRAM                   S5PV310_PA_SDRAM
> +
> +/* compatibiltiy defines. */
> +#define S3C_PA_UART                    S5PV310_PA_UART
> +#define S3C_PA_IIC                     S5PV310_PA_IIC0
> +
> +#endif /* __ASM_ARCH_MAP_H */
> diff --git a/arch/arm/mach-s5pv310/include/mach/memory.h b/arch/arm/mach-s5pv310/include/mach/memory.h
> new file mode 100644
> index 0000000..1dffb48
> --- /dev/null
> +++ b/arch/arm/mach-s5pv310/include/mach/memory.h
> @@ -0,0 +1,22 @@
> +/* linux/arch/arm/mach-s5pv310/include/mach/memory.h
> + *
> + * Copyright (c) 2010 Samsung Electronics Co., Ltd.
> + *             http://www.samsung.com/
> + *
> + * S5PV310 - Memory 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_ARCH_MEMORY_H
> +#define __ASM_ARCH_MEMORY_H __FILE__
> +
> +#define PHYS_OFFSET            UL(0x40000000)
> +
> +/* Maximum of 256MiB in one bank */
> +#define MAX_PHYSMEM_BITS       32
> +#define SECTION_SIZE_BITS      28
> +
> +#endif /* __ASM_ARCH_MEMORY_H */
> diff --git a/arch/arm/mach-s5pv310/include/mach/smp.h b/arch/arm/mach-s5pv310/include/mach/smp.h
> new file mode 100644
> index 0000000..990f3ba
> --- /dev/null
> +++ b/arch/arm/mach-s5pv310/include/mach/smp.h
> @@ -0,0 +1,29 @@
> +/* linux/arch/arm/mach-s5pv310/include/mach/smp.h
> + *
> + * Cloned from arch/arm/mach-realview/include/mach/smp.h
> +*/
> +
> +#ifndef ASM_ARCH_SMP_H
> +#define ASM_ARCH_SMP_H __FILE__
> +
> +#include <asm/hardware/gic.h>
> +
> +extern void __iomem *gic_cpu_base_addr;
> +
> +#define hard_smp_processor_id()                        \
> +       ({                                              \
> +               unsigned int cpunum;                    \
> +               __asm__("mrc p15, 0, %0, c0, c0, 5"     \
> +                       : "=r" (cpunum));               \
> +               cpunum &= 0x03;                         \
> +       })
> +
> +/*
> + * We use IRQ1 as the IPI
> + */
> +static inline void smp_cross_call(const struct cpumask *mask)
> +{
> +       gic_raise_softirq(mask, 1);
> +}
> +
> +#endif
> diff --git a/arch/arm/mach-s5pv310/include/mach/system.h b/arch/arm/mach-s5pv310/include/mach/system.h
> new file mode 100644
> index 0000000..d10c009
> --- /dev/null
> +++ b/arch/arm/mach-s5pv310/include/mach/system.h
> @@ -0,0 +1,22 @@
> +/* linux/arch/arm/mach-s5pv310/include/mach/system.h
> + *
> + * Copyright (c) 2010 Samsung Electronics Co., Ltd.
> + *             http://www.samsung.com/
> + *
> + * S5PV310 - system support header
> + *
> + * 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_ARCH_SYSTEM_H
> +#define __ASM_ARCH_SYSTEM_H __FILE__
> +
> +#include <plat/system-reset.h>
> +
> +static void arch_idle(void)
> +{
> +       /* nothing here yet */
> +}
> +#endif /* __ASM_ARCH_SYSTEM_H */
> diff --git a/arch/arm/mach-s5pv310/include/mach/timex.h b/arch/arm/mach-s5pv310/include/mach/timex.h
> new file mode 100644
> index 0000000..bd2359b
> --- /dev/null
> +++ b/arch/arm/mach-s5pv310/include/mach/timex.h
> @@ -0,0 +1,29 @@
> +/* linux/arch/arm/mach-s5pv310/include/mach/timex.h
> + *
> + * Copyright (c) 2010 Samsung Electronics Co., Ltd.
> + *             http://www.samsung.com/
> + *
> + * Copyright (c) 2003-2010 Simtec Electronics
> + *     Ben Dooks <ben at simtec.co.uk>
> + *
> + * Based on arch/arm/mach-s5p6442/include/mach/timex.h
> + *
> + * S5PV310 - time parameters
> + *
> + * 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_ARCH_TIMEX_H
> +#define __ASM_ARCH_TIMEX_H __FILE__
> +
> +/* CLOCK_TICK_RATE needs to be evaluatable by the cpp, so making it
> + * a variable is useless. It seems as long as we make our timers an
> + * exact multiple of HZ, any value that makes a 1->1 correspondence
> + * for the time conversion functions to/from jiffies is acceptable.
> +*/
> +
> +#define CLOCK_TICK_RATE 12000000
> +
> +#endif /* __ASM_ARCH_TIMEX_H */
> diff --git a/arch/arm/mach-s5pv310/include/mach/uncompress.h b/arch/arm/mach-s5pv310/include/mach/uncompress.h
> new file mode 100644
> index 0000000..ad88c24
> --- /dev/null
> +++ b/arch/arm/mach-s5pv310/include/mach/uncompress.h
> @@ -0,0 +1,27 @@
> +/* linux/arch/arm/mach-s5pv310/include/mach/uncompress.h
> + *
> + * Copyright (c) 2010 Samsung Electronics Co., Ltd.
> + *             http://www.samsung.com/
> + *
> + * S5PV310 - uncompress code
> + *
> + * 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_ARCH_UNCOMPRESS_H
> +#define __ASM_ARCH_UNCOMPRESS_H __FILE__
> +
> +#include <mach/map.h>
> +#include <plat/uncompress.h>
> +
> +static void arch_detect_cpu(void)
> +{
> +       /* we do not need to do any cpu detection here at the moment. */
> +
> +       fifo_mask = S5PV210_UFSTAT_TXMASK;
> +       fifo_max = 63 << S5PV210_UFSTAT_TXSHIFT;
> +}
> +
> +#endif /* __ASM_ARCH_UNCOMPRESS_H */
> diff --git a/arch/arm/mach-s5pv310/include/mach/vmalloc.h b/arch/arm/mach-s5pv310/include/mach/vmalloc.h
> new file mode 100644
> index 0000000..426d997
> --- /dev/null
> +++ b/arch/arm/mach-s5pv310/include/mach/vmalloc.h
> @@ -0,0 +1,22 @@
> +/* linux/arch/arm/mach-s5pv310/include/mach/vmalloc.h
> + *
> + * Copyright (c) 2010 Samsung Electronics Co., Ltd.
> + *             http://www.samsung.com/
> + *
> + * Copyright 2010 Ben Dooks <ben-linux at fluff.org>
> + *
> + * Based on arch/arm/mach-s5p6440/include/mach/vmalloc.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.
> + *
> + * S5PV310 vmalloc definition
> +*/
> +
> +#ifndef __ASM_ARCH_VMALLOC_H
> +#define __ASM_ARCH_VMALLOC_H __FILE__
> +
> +#define VMALLOC_END      (0xE0000000)

If there's no different reason to use 0xE000'0000, how about to use 0xF000'0000?
I hope to delay using HIGHMEM as possible

> +
> +#endif /* __ASM_ARCH_VMALLOC_H */
> diff --git a/arch/arm/mach-s5pv310/init.c b/arch/arm/mach-s5pv310/init.c
> new file mode 100644
> index 0000000..182dcf4
> --- /dev/null
> +++ b/arch/arm/mach-s5pv310/init.c
> @@ -0,0 +1,41 @@
> +/* linux/arch/arm/mach-s5pv310/init.c
> + *
> + * Copyright (c) 2010 Samsung Electronics Co., Ltd.
> + *             http://www.samsung.com/
> + *
> + * 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_core.h>
> +
> +#include <plat/cpu.h>
> +#include <plat/devs.h>
> +#include <plat/regs-serial.h>
> +
> +static struct s3c24xx_uart_clksrc s5pv310_serial_clocks[] = {
> +       [0] = {
> +               .name           = "uclk1",
> +               .divisor        = 1,
> +               .min_baud       = 0,
> +               .max_baud       = 0,
> +       },
> +};
> +
> +/* uart registration process */
> +void __init s5pv310_common_init_uarts(struct s3c2410_uartcfg *cfg, int no)
> +{
> +       struct s3c2410_uartcfg *tcfg = cfg;
> +       u32 ucnt;
> +
> +       for (ucnt = 0; ucnt < no; ucnt++, tcfg++) {
> +               if (!tcfg->clocks) {
> +                       tcfg->has_fracval = 1;
> +                       tcfg->clocks = s5pv310_serial_clocks;
> +                       tcfg->clocks_size = ARRAY_SIZE(s5pv310_serial_clocks);
> +               }
> +       }
> +
> +       s3c24xx_init_uartdevs("s5pv210-uart", s5p_uart_resources, cfg, no);
> +}
> diff --git a/arch/arm/mach-s5pv310/platsmp.c b/arch/arm/mach-s5pv310/platsmp.c
> new file mode 100644
> index 0000000..9325ac2
> --- /dev/null
> +++ b/arch/arm/mach-s5pv310/platsmp.c
> @@ -0,0 +1,212 @@
> +/* linux/arch/arm/mach-s5pv310/platsmp.c
> + *
> + * Copyright (c) 2010 Samsung Electronics Co., Ltd.
> + *             http://www.samsung.com/
> + *
> + * Cloned from linux/arch/arm/mach-realview/platsmp.c
> + *
> + *  Copyright (C) 2002 ARM Ltd.
> + *  All Rights Reserved
> + *
> + * 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/errno.h>
> +#include <linux/delay.h>
> +#include <linux/device.h>
> +#include <linux/jiffies.h>
> +#include <linux/smp.h>
> +#include <linux/io.h>
> +
> +#include <asm/cacheflush.h>
> +#include <mach/hardware.h>
> +#include <asm/mach-types.h>
> +#include <asm/localtimer.h>
> +#include <asm/unified.h>
> +
> +#include <asm/smp_scu.h>
> +#include <mach/regs-clock.h>
> +
> +extern void s5pv310_secondary_startup(void);
> +
> +/*
> + * control for which core is the next to come out of the secondary
> + * boot "holding pen"
> + */
> +volatile int __cpuinitdata pen_release = -1;
> +
> +static void __iomem *scu_base_addr(void)
> +{
> +       return (void __iomem *)(S5P_VA_SCU);
> +}
> +
> +static inline unsigned int get_core_count(void)
> +{
> +       void __iomem *scu_base = scu_base_addr();
> +       if (scu_base)
> +               return scu_get_core_count(scu_base);
> +       return 1;
> +}
> +
> +static DEFINE_SPINLOCK(boot_lock);
> +
> +void __cpuinit platform_secondary_init(unsigned int cpu)
> +{
> +       trace_hardirqs_off();
> +
> +       /*
> +        * if any interrupts are already enabled for the primary
> +        * core (e.g. timer irq), then they will not have been enabled
> +        * for us: do so
> +        */
> +       gic_cpu_init(0, gic_cpu_base_addr);
> +
> +       /*
> +        * let the primary processor know we're out of the
> +        * pen, then head off into the C entry point
> +        */
> +       pen_release = -1;
> +       smp_wmb();
> +
> +       /*
> +        * Synchronise with the boot thread.
> +        */
> +       spin_lock(&boot_lock);
> +       spin_unlock(&boot_lock);
> +}
> +
> +int __cpuinit boot_secondary(unsigned int cpu, struct task_struct *idle)
> +{
> +       unsigned long timeout;
> +
> +       /*
> +        * set synchronisation state between this boot processor
> +        * and the secondary one
> +        */
> +       spin_lock(&boot_lock);
> +
> +       /*
> +        * The secondary processor is waiting to be released from
> +        * the holding pen - release it, then wait for it to flag
> +        * that it has been released by resetting pen_release.
> +        *
> +        * Note that "pen_release" is the hardware CPU ID, whereas
> +        * "cpu" is Linux's internal ID.
> +        */
> +       pen_release = cpu;
> +       flush_cache_all();
> +
> +       /*
> +        * XXX
> +        *
> +        * This is a later addition to the booting protocol: the
> +        * bootMonitor now puts secondary cores into WFI, so
> +        * poke_milo() no longer gets the cores moving; we need
> +        * to send a soft interrupt to wake the secondary core.
> +        * Use smp_cross_call() for this, since there's little
> +        * point duplicating the code here
> +        */
> +       smp_cross_call(cpumask_of(cpu));
> +
> +       timeout = jiffies + (1 * HZ);
> +       while (time_before(jiffies, timeout)) {
> +               smp_rmb();
> +               if (pen_release == -1)
> +                       break;
> +
> +               udelay(10);
> +       }
> +
> +       /*
> +        * now the secondary core is starting up let it run its
> +        * calibrations, then wait for it to finish
> +        */
> +       spin_unlock(&boot_lock);
> +
> +       return pen_release != -1 ? -ENOSYS : 0;
> +}
> +
> +static void __init poke_milo(void)
> +{
> +       /* nobody is to be released from the pen yet */
> +       pen_release = -1;
> +
> +       /*
> +        * Write the address of secondary startup into the system-wide flags
> +        * register. The BootMonitor waits for this register to become
> +        * non-zero.
> +        */
> +       __raw_writel(BSYM(virt_to_phys(s5pv310_secondary_startup)), S5P_INFORM0);
> +
> +       mb();
> +}
> +
> +/*
> + * Initialise the CPU possible map early - this describes the CPUs
> + * which may be present or become present in the system.
> + */
> +void __init smp_init_cpus(void)
> +{
> +       unsigned int i, ncores = get_core_count();
> +
> +       for (i = 0; i < ncores; i++)
> +               set_cpu_possible(i, true);
> +}
> +
> +void __init smp_prepare_cpus(unsigned int max_cpus)
> +{
> +       unsigned int ncores = get_core_count();
> +       unsigned int cpu = smp_processor_id();
> +       int i;
> +
> +       /* sanity check */
> +       if (ncores == 0) {
> +               printk(KERN_ERR
> +                      "Realview: strange CM count of 0? Default to 1\n");
> +
> +               ncores = 1;
> +       }
> +
> +       if (ncores > NR_CPUS) {
> +               printk(KERN_WARNING
> +                      "Realview: no. of cores (%d) greater than configured "
> +                      "maximum of %d - clipping\n",
> +                      ncores, NR_CPUS);
> +               ncores = NR_CPUS;
> +       }
> +
> +       smp_store_cpu_info(cpu);
> +
> +       /*
> +        * are we trying to boot more cores than exist?
> +        */
> +       if (max_cpus > ncores)
> +               max_cpus = ncores;
> +
> +       /*
> +        * Initialise the present map, which describes the set of CPUs
> +        * actually populated at the present time.
> +        */
> +       for (i = 0; i < max_cpus; i++)
> +               set_cpu_present(i, true);
> +
> +       /*
> +        * Initialise the SCU if there are more than one CPU and let
> +        * them know where to start. Note that, on modern versions of
> +        * MILO, the "poke" doesn't actually do anything until each
> +        * individual core is sent a soft interrupt to get it out of
> +        * WFI
> +        */
> +       if (max_cpus > 1) {
> +               /*
> +                * Enable the local timer or broadcast device for the
> +                * boot CPU, but only if we have more than one CPU.
> +                */
> +               percpu_timer_setup();
> +
> +               scu_enable(scu_base_addr());
> +               poke_milo();
> +       }
> +}
> diff --git a/arch/arm/mach-s5pv310/setup-i2c0.c b/arch/arm/mach-s5pv310/setup-i2c0.c
> new file mode 100644
> index 0000000..d4f5a81
> --- /dev/null
> +++ b/arch/arm/mach-s5pv310/setup-i2c0.c
> @@ -0,0 +1,20 @@
> +/* linux/arch/arm/mach-s5pv210/setup-i2c0.c
> + *
> + * Copyright (c) 2009-2010 Samsung Electronics Co., Ltd.
> + *             http://www.samsung.com/
> + *
> + * I2C0 GPIO configuration.
> + *
> + * Based on plat-s3c64xx/setup-i2c0.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.
> +*/
> +
> +struct platform_device; /* don't need the contents */
> +
> +void s3c_i2c0_cfg_gpio(struct platform_device *dev)
> +{
> +/* will be implemented later */
> +}
> diff --git a/arch/arm/plat-s5p/cpu.c b/arch/arm/plat-s5p/cpu.c
> index c478441..9261a27 100644
> --- a/arch/arm/plat-s5p/cpu.c
> +++ b/arch/arm/plat-s5p/cpu.c
> @@ -21,6 +21,7 @@
>  #include <plat/s5p6442.h>
>  #include <plat/s5pc100.h>
>  #include <plat/s5pv210.h>
> +#include <plat/s5pv310.h>
>
>  /* table of supported CPUs */
>
> @@ -28,6 +29,7 @@ static const char name_s5p6440[] = "S5P6440";
>  static const char name_s5p6442[] = "S5P6442";
>  static const char name_s5pc100[] = "S5PC100";
>  static const char name_s5pv210[] = "S5PV210/S5PC110";
> +static const char name_s5pv310[] = "S5PV310";
>
>  static struct cpu_table cpu_ids[] __initdata = {
>        {
> @@ -62,6 +64,14 @@ static struct cpu_table cpu_ids[] __initdata = {
>                .init_uarts     = s5pv210_init_uarts,
>                .init           = s5pv210_init,
>                .name           = name_s5pv210,
> +       }, {
> +               .idcode         = 0x43200000,
> +               .idmask         = 0xfffff000,
> +               .map_io         = s5pv310_map_io,
> +               .init_clocks    = s5pv310_init_clocks,
> +               .init_uarts     = s5pv310_init_uarts,
> +               .init           = s5pv310_init,
> +               .name           = name_s5pv310,
>        },
>  };
>
> @@ -83,6 +93,7 @@ static struct map_desc s5p_iodesc[] __initdata = {
>                .pfn            = __phys_to_pfn(S3C_PA_UART),
>                .length         = SZ_512K,
>                .type           = MT_DEVICE,
> +#ifdef CONFIG_ARM_VIC
>        }, {
>                .virtual        = (unsigned long)VA_VIC0,
>                .pfn            = __phys_to_pfn(S5P_PA_VIC0),
> @@ -93,6 +104,7 @@ static struct map_desc s5p_iodesc[] __initdata = {
>                .pfn            = __phys_to_pfn(S5P_PA_VIC1),
>                .length         = SZ_16K,
>                .type           = MT_DEVICE,
> +#endif
>        }, {
>                .virtual        = (unsigned long)S3C_VA_TIMER,
>                .pfn            = __phys_to_pfn(S5P_PA_TIMER),
> diff --git a/arch/arm/plat-s5p/include/plat/map-s5p.h b/arch/arm/plat-s5p/include/plat/map-s5p.h
> index 3d815f4..54e9fb9 100644
> --- a/arch/arm/plat-s5p/include/plat/map-s5p.h
> +++ b/arch/arm/plat-s5p/include/plat/map-s5p.h
> @@ -18,6 +18,18 @@
>  #define S5P_VA_SYSTIMER                S3C_ADDR(0x01200000)
>  #define S5P_VA_SROMC           S3C_ADDR(0x01100000)
>
> +#define S5P_VA_COMBINER_BASE   S3C_ADDR(0x00600000)
> +#define S5P_VA_COMBINER(x)     (S5P_VA_COMBINER_BASE + ((x) >> 2) * 0x10)
> +
> +#define S5P_VA_COREPERI_BASE   S3C_ADDR(0x00800000)
> +#define S5P_VA_COREPERI(x)     (S5P_VA_COREPERI_BASE + (x))
> +#define S5P_VA_SCU             S5P_VA_COREPERI(0x0)
> +#define S5P_VA_GIC_CPU         S5P_VA_COREPERI(0x100)
> +#define S5P_VA_TWD             S5P_VA_COREPERI(0x600)
> +#define S5P_VA_GIC_DIST                S5P_VA_COREPERI(0x1000)
> +
> +#define S5P_VA_L2CC            S3C_ADDR(0x00900000)
> +
>  #define S5P_VA_UART(x)         (S3C_VA_UART + ((x) * S3C_UART_OFFSET))
>  #define S5P_VA_UART0           S5P_VA_UART(0)
>  #define S5P_VA_UART1           S5P_VA_UART(1)
> diff --git a/arch/arm/plat-s5p/include/plat/s5pv310.h b/arch/arm/plat-s5p/include/plat/s5pv310.h
> new file mode 100644
> index 0000000..d2f05e1
> --- /dev/null
> +++ b/arch/arm/plat-s5p/include/plat/s5pv310.h
> @@ -0,0 +1,33 @@
> +/* linux/arch/arm/plat-s5p/include/plat/s5pv310.h
> + *
> + * Copyright (c) 2010 Samsung Electronics Co., Ltd.
> + *             http://www.samsung.com/
> + *
> + * Header file for s5pv310 cpu support
> + *
> + * 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.
> +*/
> +
> +/* Common init code for S5PV310 related SoCs */
> +
> +extern void s5pv310_common_init_uarts(struct s3c2410_uartcfg *cfg, int no);
> +extern void s5pv310_register_clocks(void);
> +extern void s5pv310_setup_clocks(void);
> +
> +#ifdef CONFIG_CPU_S5PV310
> +
> +extern  int s5pv310_init(void);
> +extern void s5pv310_init_irq(void);
> +extern void s5pv310_map_io(void);
> +extern void s5pv310_init_clocks(int xtal);
> +
> +#define s5pv310_init_uarts s5pv310_common_init_uarts
> +
> +#else
> +#define s5pv310_init_clocks NULL
> +#define s5pv310_init_uarts NULL
> +#define s5pv310_map_io NULL
> +#define s5pv310_init NULL
> +#endif
> --
> 1.6.2.5
>
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