diff options
Diffstat (limited to 'arch/arm/mach-exynos4/cpu.c')
| -rw-r--r-- | arch/arm/mach-exynos4/cpu.c | 226 |
1 files changed, 0 insertions, 226 deletions
diff --git a/arch/arm/mach-exynos4/cpu.c b/arch/arm/mach-exynos4/cpu.c deleted file mode 100644 index bfd621460abf..000000000000 --- a/arch/arm/mach-exynos4/cpu.c +++ /dev/null @@ -1,226 +0,0 @@ -/* linux/arch/arm/mach-exynos4/cpu.c - * - * Copyright (c) 2010-2011 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 <asm/hardware/cache-l2x0.h> - -#include <plat/cpu.h> -#include <plat/clock.h> -#include <plat/exynos4.h> -#include <plat/sdhci.h> -#include <plat/devs.h> -#include <plat/fimc-core.h> -#include <plat/iic-core.h> - -#include <mach/regs-irq.h> - -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 exynos4_iodesc[] __initdata = { - { - .virtual = (unsigned long)S5P_VA_SYSTIMER, - .pfn = __phys_to_pfn(EXYNOS4_PA_SYSTIMER), - .length = SZ_4K, - .type = MT_DEVICE, - }, { - .virtual = (unsigned long)S5P_VA_SYSRAM, - .pfn = __phys_to_pfn(EXYNOS4_PA_SYSRAM), - .length = SZ_4K, - .type = MT_DEVICE, - }, { - .virtual = (unsigned long)S5P_VA_CMU, - .pfn = __phys_to_pfn(EXYNOS4_PA_CMU), - .length = SZ_128K, - .type = MT_DEVICE, - }, { - .virtual = (unsigned long)S5P_VA_PMU, - .pfn = __phys_to_pfn(EXYNOS4_PA_PMU), - .length = SZ_64K, - .type = MT_DEVICE, - }, { - .virtual = (unsigned long)S5P_VA_COMBINER_BASE, - .pfn = __phys_to_pfn(EXYNOS4_PA_COMBINER), - .length = SZ_4K, - .type = MT_DEVICE, - }, { - .virtual = (unsigned long)S5P_VA_COREPERI_BASE, - .pfn = __phys_to_pfn(EXYNOS4_PA_COREPERI), - .length = SZ_8K, - .type = MT_DEVICE, - }, { - .virtual = (unsigned long)S5P_VA_L2CC, - .pfn = __phys_to_pfn(EXYNOS4_PA_L2CC), - .length = SZ_4K, - .type = MT_DEVICE, - }, { - .virtual = (unsigned long)S5P_VA_GPIO1, - .pfn = __phys_to_pfn(EXYNOS4_PA_GPIO1), - .length = SZ_4K, - .type = MT_DEVICE, - }, { - .virtual = (unsigned long)S5P_VA_GPIO2, - .pfn = __phys_to_pfn(EXYNOS4_PA_GPIO2), - .length = SZ_4K, - .type = MT_DEVICE, - }, { - .virtual = (unsigned long)S5P_VA_GPIO3, - .pfn = __phys_to_pfn(EXYNOS4_PA_GPIO3), - .length = SZ_256, - .type = MT_DEVICE, - }, { - .virtual = (unsigned long)S5P_VA_DMC0, - .pfn = __phys_to_pfn(EXYNOS4_PA_DMC0), - .length = SZ_4K, - .type = MT_DEVICE, - }, { - .virtual = (unsigned long)S3C_VA_UART, - .pfn = __phys_to_pfn(S3C_PA_UART), - .length = SZ_512K, - .type = MT_DEVICE, - }, { - .virtual = (unsigned long)S5P_VA_SROMC, - .pfn = __phys_to_pfn(EXYNOS4_PA_SROMC), - .length = SZ_4K, - .type = MT_DEVICE, - }, { - .virtual = (unsigned long)S3C_VA_USB_HSPHY, - .pfn = __phys_to_pfn(EXYNOS4_PA_HSPHY), - .length = SZ_4K, - .type = MT_DEVICE, - } -}; - -static void exynos4_idle(void) -{ - if (!need_resched()) - cpu_do_idle(); - - local_irq_enable(); -} - -/* - * exynos4_map_io - * - * register the standard cpu IO areas - */ -void __init exynos4_map_io(void) -{ - iotable_init(exynos4_iodesc, ARRAY_SIZE(exynos4_iodesc)); - - /* initialize device information early */ - exynos4_default_sdhci0(); - exynos4_default_sdhci1(); - exynos4_default_sdhci2(); - exynos4_default_sdhci3(); - - s3c_fimc_setname(0, "exynos4-fimc"); - s3c_fimc_setname(1, "exynos4-fimc"); - s3c_fimc_setname(2, "exynos4-fimc"); - s3c_fimc_setname(3, "exynos4-fimc"); - - /* The I2C bus controllers are directly compatible with s3c2440 */ - s3c_i2c0_setname("s3c2440-i2c"); - s3c_i2c1_setname("s3c2440-i2c"); - s3c_i2c2_setname("s3c2440-i2c"); -} - -void __init exynos4_init_clocks(int xtal) -{ - printk(KERN_DEBUG "%s: initializing clocks\n", __func__); - - s3c24xx_register_baseclocks(xtal); - s5p_register_clocks(xtal); - exynos4_register_clocks(); - exynos4_setup_clocks(); -} - -void __init exynos4_init_irq(void) -{ - int irq; - - gic_init(0, IRQ_LOCALTIMER, S5P_VA_GIC_DIST, S5P_VA_GIC_CPU); - - for (irq = 0; irq < MAX_COMBINER_NR; irq++) { - - /* - * From SPI(0) to SPI(39) and SPI(51), SPI(53) are - * connected to the interrupt combiner. These irqs - * should be initialized to support cascade interrupt. - */ - if ((irq >= 40) && !(irq == 51) && !(irq == 53)) - continue; - - 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 EXYNOS4 - * uses GIC instead of VIC. - */ - s5p_init_irq(NULL, 0); -} - -struct sysdev_class exynos4_sysclass = { - .name = "exynos4-core", -}; - -static struct sys_device exynos4_sysdev = { - .cls = &exynos4_sysclass, -}; - -static int __init exynos4_core_init(void) -{ - return sysdev_class_register(&exynos4_sysclass); -} - -core_initcall(exynos4_core_init); - -#ifdef CONFIG_CACHE_L2X0 -static int __init exynos4_l2x0_cache_init(void) -{ - /* TAG, Data Latency Control: 2cycle */ - __raw_writel(0x110, S5P_VA_L2CC + L2X0_TAG_LATENCY_CTRL); - __raw_writel(0x110, S5P_VA_L2CC + L2X0_DATA_LATENCY_CTRL); - - /* L2X0 Prefetch Control */ - __raw_writel(0x30000007, S5P_VA_L2CC + L2X0_PREFETCH_CTRL); - - /* L2X0 Power Control */ - __raw_writel(L2X0_DYNAMIC_CLK_GATING_EN | L2X0_STNDBY_MODE_EN, - S5P_VA_L2CC + L2X0_POWER_CTRL); - - l2x0_init(S5P_VA_L2CC, 0x7C470001, 0xC200ffff); - - return 0; -} - -early_initcall(exynos4_l2x0_cache_init); -#endif - -int __init exynos4_init(void) -{ - printk(KERN_INFO "EXYNOS4: Initializing architecture\n"); - - /* set idle function */ - pm_idle = exynos4_idle; - - return sysdev_register(&exynos4_sysdev); -} |