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author | Linus Torvalds <torvalds@linux-foundation.org> | 2010-03-12 16:00:54 -0800 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2010-03-12 16:00:54 -0800 |
commit | dca1d9f6d7ae428c193f32bd3e9a4ca13176648b (patch) | |
tree | 02de8c3503c1c811754423d2fa3f3b4978044f6e /arch/arm/mach-s5pv210/cpu.c | |
parent | 9ff99339447de403a46be5e3f23d0c794d540b06 (diff) | |
parent | 91e013827c0bcbb187ecf02213c5446b6f62d445 (diff) | |
download | talos-obmc-linux-dca1d9f6d7ae428c193f32bd3e9a4ca13176648b.tar.gz talos-obmc-linux-dca1d9f6d7ae428c193f32bd3e9a4ca13176648b.zip |
Merge branch 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm
* 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm: (370 commits)
ARM: S3C2443: Add set_rate and round_rate calls for armdiv clock
ARM: S3C2443: Remove #if 0 for clk_mpll
ARM: S3C2443: Update notes on MPLLREF clock
ARM: S3C2443: Further clksrc-clk conversions
ARM: S3C2443: Change to using plat-samsung clksrc-clk implementation
USB: Fix s3c-hsotg build following Samsung platform header moves
ARM: S3C64XX: Reintroduce unconditional build of audio device
ARM: 5961/1: ux500: fix CLKRST addresses
ARM: 5977/1: arm: Enable backtrace printing on oops when PC is corrupted
ASoC: Fix S3C64xx IIS driver for Samsung header reorg
ARM: S3C2440: Fix plat-s3c24xx move of s3c2440/s3c2442 support
[ARM] pxa: fix typo in mxm8x10.h
[ARM] pxa/raumfeld: set GPIO drive bits for LED pins
[ARM] pxa/zeus: Add support for mcp2515 CAN bus
[ARM] pxa/zeus: Add support for onboard max6369 watchdog
[ARM] pxa/zeus: Add Eurotech as the manufacturer
[ARM] pxa/zeus: Correct the USB host initialisation flags
[ARM] pxa/zeus: Allow usage of 8250-compatible UART in uncompress
[ARM] pxa: refactor uncompress.h for non-PXA uarts
[ARM] mmp2: fix incorrect calling of chip->mask_ack() for 2nd level cascaded IRQs
...
Diffstat (limited to 'arch/arm/mach-s5pv210/cpu.c')
-rw-r--r-- | arch/arm/mach-s5pv210/cpu.c | 126 |
1 files changed, 126 insertions, 0 deletions
diff --git a/arch/arm/mach-s5pv210/cpu.c b/arch/arm/mach-s5pv210/cpu.c new file mode 100644 index 000000000000..0e0f8fde2aa6 --- /dev/null +++ b/arch/arm/mach-s5pv210/cpu.c @@ -0,0 +1,126 @@ +/* linux/arch/arm/mach-s5pv210/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/kernel.h> +#include <linux/types.h> +#include <linux/interrupt.h> +#include <linux/list.h> +#include <linux/timer.h> +#include <linux/init.h> +#include <linux/module.h> +#include <linux/clk.h> +#include <linux/io.h> +#include <linux/sysdev.h> +#include <linux/platform_device.h> + +#include <asm/mach/arch.h> +#include <asm/mach/map.h> +#include <asm/mach/irq.h> + +#include <asm/proc-fns.h> +#include <mach/map.h> +#include <mach/regs-clock.h> + +#include <plat/cpu.h> +#include <plat/devs.h> +#include <plat/clock.h> +#include <plat/s5pv210.h> + +/* Initial IO mappings */ + +static struct map_desc s5pv210_iodesc[] __initdata = { + { + .virtual = (unsigned long)S5P_VA_SYSTIMER, + .pfn = __phys_to_pfn(S5PV210_PA_SYSTIMER), + .length = SZ_1M, + .type = MT_DEVICE, + }, { + .virtual = (unsigned long)VA_VIC2, + .pfn = __phys_to_pfn(S5PV210_PA_VIC2), + .length = SZ_16K, + .type = MT_DEVICE, + }, { + .virtual = (unsigned long)VA_VIC3, + .pfn = __phys_to_pfn(S5PV210_PA_VIC3), + .length = SZ_16K, + .type = MT_DEVICE, + }, { + .virtual = (unsigned long)S5P_VA_SROMC, + .pfn = __phys_to_pfn(S5PV210_PA_SROMC), + .length = SZ_4K, + .type = MT_DEVICE, + } +}; + +static void s5pv210_idle(void) +{ + if (!need_resched()) + cpu_do_idle(); + + local_irq_enable(); +} + +/* s5pv210_map_io + * + * register the standard cpu IO areas +*/ + +void __init s5pv210_map_io(void) +{ + iotable_init(s5pv210_iodesc, ARRAY_SIZE(s5pv210_iodesc)); +} + +void __init s5pv210_init_clocks(int xtal) +{ + printk(KERN_DEBUG "%s: initializing clocks\n", __func__); + + s3c24xx_register_baseclocks(xtal); + s5p_register_clocks(xtal); + s5pv210_register_clocks(); + s5pv210_setup_clocks(); +} + +void __init s5pv210_init_irq(void) +{ + u32 vic[4]; /* S5PV210 supports 4 VIC */ + + /* All the VICs are fully populated. */ + vic[0] = ~0; + vic[1] = ~0; + vic[2] = ~0; + vic[3] = ~0; + + s5p_init_irq(vic, ARRAY_SIZE(vic)); +} + +static struct sysdev_class s5pv210_sysclass = { + .name = "s5pv210-core", +}; + +static struct sys_device s5pv210_sysdev = { + .cls = &s5pv210_sysclass, +}; + +static int __init s5pv210_core_init(void) +{ + return sysdev_class_register(&s5pv210_sysclass); +} + +core_initcall(s5pv210_core_init); + +int __init s5pv210_init(void) +{ + printk(KERN_INFO "S5PV210: Initializing architecture\n"); + + /* set idle function */ + pm_idle = s5pv210_idle; + + return sysdev_register(&s5pv210_sysdev); +} |