diff options
Diffstat (limited to 'arch/arm/mach-s5p64x0/common.c')
| -rw-r--r-- | arch/arm/mach-s5p64x0/common.c | 490 |
1 files changed, 0 insertions, 490 deletions
diff --git a/arch/arm/mach-s5p64x0/common.c b/arch/arm/mach-s5p64x0/common.c deleted file mode 100644 index 9a43be002d78..000000000000 --- a/arch/arm/mach-s5p64x0/common.c +++ /dev/null @@ -1,490 +0,0 @@ -/* - * Copyright (c) 2009-2011 Samsung Electronics Co., Ltd. - * http://www.samsung.com - * - * Common Codes for S5P64X0 machines - * - * 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/clk.h> -#include <linux/io.h> -#include <linux/device.h> -#include <linux/serial_core.h> -#include <linux/serial_s3c.h> -#include <clocksource/samsung_pwm.h> -#include <linux/platform_device.h> -#include <linux/sched.h> -#include <linux/dma-mapping.h> -#include <linux/gpio.h> -#include <linux/irq.h> -#include <linux/reboot.h> - -#include <asm/irq.h> -#include <asm/proc-fns.h> -#include <asm/system_misc.h> -#include <asm/mach/arch.h> -#include <asm/mach/map.h> -#include <asm/mach/irq.h> - -#include <mach/map.h> -#include <mach/hardware.h> -#include <mach/regs-clock.h> -#include <mach/regs-gpio.h> - -#include <plat/cpu.h> -#include <plat/clock.h> -#include <plat/devs.h> -#include <plat/pm.h> -#include <plat/sdhci.h> -#include <plat/adc-core.h> -#include <plat/fb-core.h> -#include <plat/spi-core.h> -#include <plat/gpio-cfg.h> -#include <plat/pwm-core.h> -#include <plat/regs-irqtype.h> -#include <plat/watchdog-reset.h> - -#include "common.h" - -static const char name_s5p6440[] = "S5P6440"; -static const char name_s5p6450[] = "S5P6450"; - -static struct cpu_table cpu_ids[] __initdata = { - { - .idcode = S5P6440_CPU_ID, - .idmask = S5P64XX_CPU_MASK, - .map_io = s5p6440_map_io, - .init_clocks = s5p6440_init_clocks, - .init_uarts = s5p6440_init_uarts, - .init = s5p64x0_init, - .name = name_s5p6440, - }, { - .idcode = S5P6450_CPU_ID, - .idmask = S5P64XX_CPU_MASK, - .map_io = s5p6450_map_io, - .init_clocks = s5p6450_init_clocks, - .init_uarts = s5p6450_init_uarts, - .init = s5p64x0_init, - .name = name_s5p6450, - }, -}; - -/* Initial IO mappings */ - -static struct map_desc s5p64x0_iodesc[] __initdata = { - { - .virtual = (unsigned long)S5P_VA_CHIPID, - .pfn = __phys_to_pfn(S5P64X0_PA_CHIPID), - .length = SZ_4K, - .type = MT_DEVICE, - }, { - .virtual = (unsigned long)S3C_VA_SYS, - .pfn = __phys_to_pfn(S5P64X0_PA_SYSCON), - .length = SZ_64K, - .type = MT_DEVICE, - }, { - .virtual = (unsigned long)S3C_VA_TIMER, - .pfn = __phys_to_pfn(S5P64X0_PA_TIMER), - .length = SZ_16K, - .type = MT_DEVICE, - }, { - .virtual = (unsigned long)S3C_VA_WATCHDOG, - .pfn = __phys_to_pfn(S5P64X0_PA_WDT), - .length = SZ_4K, - .type = MT_DEVICE, - }, { - .virtual = (unsigned long)S5P_VA_SROMC, - .pfn = __phys_to_pfn(S5P64X0_PA_SROMC), - .length = SZ_4K, - .type = MT_DEVICE, - }, { - .virtual = (unsigned long)S5P_VA_GPIO, - .pfn = __phys_to_pfn(S5P64X0_PA_GPIO), - .length = SZ_4K, - .type = MT_DEVICE, - }, { - .virtual = (unsigned long)VA_VIC0, - .pfn = __phys_to_pfn(S5P64X0_PA_VIC0), - .length = SZ_16K, - .type = MT_DEVICE, - }, { - .virtual = (unsigned long)VA_VIC1, - .pfn = __phys_to_pfn(S5P64X0_PA_VIC1), - .length = SZ_16K, - .type = MT_DEVICE, - }, -}; - -static struct map_desc s5p6440_iodesc[] __initdata = { - { - .virtual = (unsigned long)S3C_VA_UART, - .pfn = __phys_to_pfn(S5P6440_PA_UART(0)), - .length = SZ_4K, - .type = MT_DEVICE, - }, -}; - -static struct map_desc s5p6450_iodesc[] __initdata = { - { - .virtual = (unsigned long)S3C_VA_UART, - .pfn = __phys_to_pfn(S5P6450_PA_UART(0)), - .length = SZ_512K, - .type = MT_DEVICE, - }, { - .virtual = (unsigned long)S3C_VA_UART + SZ_512K, - .pfn = __phys_to_pfn(S5P6450_PA_UART(5)), - .length = SZ_4K, - .type = MT_DEVICE, - }, -}; - -static void s5p64x0_idle(void) -{ - unsigned long val; - - val = __raw_readl(S5P64X0_PWR_CFG); - val &= ~(0x3 << 5); - val |= (0x1 << 5); - __raw_writel(val, S5P64X0_PWR_CFG); - - cpu_do_idle(); -} - -static struct samsung_pwm_variant s5p64x0_pwm_variant = { - .bits = 32, - .div_base = 0, - .has_tint_cstat = true, - .tclk_mask = 0, -}; - -void __init samsung_set_timer_source(unsigned int event, unsigned int source) -{ - s5p64x0_pwm_variant.output_mask = BIT(SAMSUNG_PWM_NUM) - 1; - s5p64x0_pwm_variant.output_mask &= ~(BIT(event) | BIT(source)); -} - -void __init samsung_timer_init(void) -{ - unsigned int timer_irqs[SAMSUNG_PWM_NUM] = { - IRQ_TIMER0_VIC, IRQ_TIMER1_VIC, IRQ_TIMER2_VIC, - IRQ_TIMER3_VIC, IRQ_TIMER4_VIC, - }; - - samsung_pwm_clocksource_init(S3C_VA_TIMER, - timer_irqs, &s5p64x0_pwm_variant); -} - -/* - * s5p64x0_map_io - * - * register the standard CPU IO areas - */ - -void __init s5p64x0_init_io(struct map_desc *mach_desc, int size) -{ - /* initialize the io descriptors we need for initialization */ - iotable_init(s5p64x0_iodesc, ARRAY_SIZE(s5p64x0_iodesc)); - if (mach_desc) - iotable_init(mach_desc, size); - - /* detect cpu id and rev. */ - s5p_init_cpu(S5P64X0_SYS_ID); - - s3c_init_cpu(samsung_cpu_id, cpu_ids, ARRAY_SIZE(cpu_ids)); - samsung_wdt_reset_init(S3C_VA_WATCHDOG); - - samsung_pwm_set_platdata(&s5p64x0_pwm_variant); -} - -#ifdef CONFIG_CPU_S5P6440 -void __init s5p6440_map_io(void) -{ - /* initialize any device information early */ - s3c_adc_setname("s3c64xx-adc"); - s3c_fb_setname("s5p64x0-fb"); - s3c64xx_spi_setname("s5p64x0-spi"); - - s5p64x0_default_sdhci0(); - s5p64x0_default_sdhci1(); - s5p6440_default_sdhci2(); - - iotable_init(s5p6440_iodesc, ARRAY_SIZE(s5p6440_iodesc)); -} -#endif - -#ifdef CONFIG_CPU_S5P6450 -void __init s5p6450_map_io(void) -{ - /* initialize any device information early */ - s3c_adc_setname("s3c64xx-adc"); - s3c_fb_setname("s5p64x0-fb"); - s3c64xx_spi_setname("s5p64x0-spi"); - - s5p64x0_default_sdhci0(); - s5p64x0_default_sdhci1(); - s5p6450_default_sdhci2(); - - iotable_init(s5p6450_iodesc, ARRAY_SIZE(s5p6450_iodesc)); -} -#endif - -/* - * s5p64x0_init_clocks - * - * register and setup the CPU clocks - */ -#ifdef CONFIG_CPU_S5P6440 -void __init s5p6440_init_clocks(int xtal) -{ - printk(KERN_DEBUG "%s: initializing clocks\n", __func__); - - s3c24xx_register_baseclocks(xtal); - s5p_register_clocks(xtal); - s5p6440_register_clocks(); - s5p6440_setup_clocks(); -} -#endif - -#ifdef CONFIG_CPU_S5P6450 -void __init s5p6450_init_clocks(int xtal) -{ - printk(KERN_DEBUG "%s: initializing clocks\n", __func__); - - s3c24xx_register_baseclocks(xtal); - s5p_register_clocks(xtal); - s5p6450_register_clocks(); - s5p6450_setup_clocks(); -} -#endif - -/* - * s5p64x0_init_irq - * - * register the CPU interrupts - */ -#ifdef CONFIG_CPU_S5P6440 -void __init s5p6440_init_irq(void) -{ - /* S5P6440 supports 2 VIC */ - u32 vic[2]; - - /* - * VIC0 is missing IRQ_VIC0[3, 4, 8, 10, (12-22)] - * VIC1 is missing IRQ VIC1[1, 3, 4, 10, 11, 12, 14, 15, 22] - */ - vic[0] = 0xff800ae7; - vic[1] = 0xffbf23e5; - - s5p_init_irq(vic, ARRAY_SIZE(vic)); -} -#endif - -#ifdef CONFIG_CPU_S5P6450 -void __init s5p6450_init_irq(void) -{ - /* S5P6450 supports only 2 VIC */ - u32 vic[2]; - - /* - * VIC0 is missing IRQ_VIC0[(13-15), (21-22)] - * VIC1 is missing IRQ VIC1[12, 14, 23] - */ - vic[0] = 0xff9f1fff; - vic[1] = 0xff7fafff; - - s5p_init_irq(vic, ARRAY_SIZE(vic)); -} -#endif - -struct bus_type s5p64x0_subsys = { - .name = "s5p64x0-core", - .dev_name = "s5p64x0-core", -}; - -static struct device s5p64x0_dev = { - .bus = &s5p64x0_subsys, -}; - -static int __init s5p64x0_core_init(void) -{ - return subsys_system_register(&s5p64x0_subsys, NULL); -} -core_initcall(s5p64x0_core_init); - -int __init s5p64x0_init(void) -{ - printk(KERN_INFO "S5P64X0(S5P6440/S5P6450): Initializing architecture\n"); - - /* set idle function */ - arm_pm_idle = s5p64x0_idle; - - return device_register(&s5p64x0_dev); -} - -/* uart registration process */ -#ifdef CONFIG_CPU_S5P6440 -void __init s5p6440_init_uarts(struct s3c2410_uartcfg *cfg, int no) -{ - int uart; - - for (uart = 0; uart < no; uart++) { - s5p_uart_resources[uart].resources->start = S5P6440_PA_UART(uart); - s5p_uart_resources[uart].resources->end = S5P6440_PA_UART(uart) + S5P_SZ_UART; - } - - s3c24xx_init_uartdevs("s3c6400-uart", s5p_uart_resources, cfg, no); -} -#endif - -#ifdef CONFIG_CPU_S5P6450 -void __init s5p6450_init_uarts(struct s3c2410_uartcfg *cfg, int no) -{ - s3c24xx_init_uartdevs("s3c6400-uart", s5p_uart_resources, cfg, no); -} -#endif - -#define eint_offset(irq) ((irq) - IRQ_EINT(0)) - -static int s5p64x0_irq_eint_set_type(struct irq_data *data, unsigned int type) -{ - int offs = eint_offset(data->irq); - int shift; - u32 ctrl, mask; - u32 newvalue = 0; - - if (offs > 15) - return -EINVAL; - - switch (type) { - case IRQ_TYPE_NONE: - printk(KERN_WARNING "No edge setting!\n"); - break; - case IRQ_TYPE_EDGE_RISING: - newvalue = S3C2410_EXTINT_RISEEDGE; - break; - case IRQ_TYPE_EDGE_FALLING: - newvalue = S3C2410_EXTINT_FALLEDGE; - break; - case IRQ_TYPE_EDGE_BOTH: - newvalue = S3C2410_EXTINT_BOTHEDGE; - break; - case IRQ_TYPE_LEVEL_LOW: - newvalue = S3C2410_EXTINT_LOWLEV; - break; - case IRQ_TYPE_LEVEL_HIGH: - newvalue = S3C2410_EXTINT_HILEV; - break; - default: - printk(KERN_ERR "No such irq type %d", type); - return -EINVAL; - } - - shift = (offs / 2) * 4; - mask = 0x7 << shift; - - ctrl = __raw_readl(S5P64X0_EINT0CON0) & ~mask; - ctrl |= newvalue << shift; - __raw_writel(ctrl, S5P64X0_EINT0CON0); - - /* Configure the GPIO pin for 6450 or 6440 based on CPU ID */ - if (soc_is_s5p6450()) - s3c_gpio_cfgpin(S5P6450_GPN(offs), S3C_GPIO_SFN(2)); - else - s3c_gpio_cfgpin(S5P6440_GPN(offs), S3C_GPIO_SFN(2)); - - return 0; -} - -/* - * s5p64x0_irq_demux_eint - * - * This function demuxes the IRQ from the group0 external interrupts, - * from IRQ_EINT(0) to IRQ_EINT(15). It is designed to be inlined into - * the specific handlers s5p64x0_irq_demux_eintX_Y. - */ -static inline void s5p64x0_irq_demux_eint(unsigned int start, unsigned int end) -{ - u32 status = __raw_readl(S5P64X0_EINT0PEND); - u32 mask = __raw_readl(S5P64X0_EINT0MASK); - unsigned int irq; - - status &= ~mask; - status >>= start; - status &= (1 << (end - start + 1)) - 1; - - for (irq = IRQ_EINT(start); irq <= IRQ_EINT(end); irq++) { - if (status & 1) - generic_handle_irq(irq); - status >>= 1; - } -} - -static void s5p64x0_irq_demux_eint0_3(unsigned int irq, struct irq_desc *desc) -{ - s5p64x0_irq_demux_eint(0, 3); -} - -static void s5p64x0_irq_demux_eint4_11(unsigned int irq, struct irq_desc *desc) -{ - s5p64x0_irq_demux_eint(4, 11); -} - -static void s5p64x0_irq_demux_eint12_15(unsigned int irq, - struct irq_desc *desc) -{ - s5p64x0_irq_demux_eint(12, 15); -} - -static int s5p64x0_alloc_gc(void) -{ - struct irq_chip_generic *gc; - struct irq_chip_type *ct; - - gc = irq_alloc_generic_chip("s5p64x0-eint", 1, S5P_IRQ_EINT_BASE, - S5P_VA_GPIO, handle_level_irq); - if (!gc) { - printk(KERN_ERR "%s: irq_alloc_generic_chip for group 0" - "external interrupts failed\n", __func__); - return -EINVAL; - } - - ct = gc->chip_types; - ct->chip.irq_ack = irq_gc_ack_set_bit; - ct->chip.irq_mask = irq_gc_mask_set_bit; - ct->chip.irq_unmask = irq_gc_mask_clr_bit; - ct->chip.irq_set_type = s5p64x0_irq_eint_set_type; - ct->chip.irq_set_wake = s3c_irqext_wake; - ct->regs.ack = EINT0PEND_OFFSET; - ct->regs.mask = EINT0MASK_OFFSET; - irq_setup_generic_chip(gc, IRQ_MSK(16), IRQ_GC_INIT_MASK_CACHE, - IRQ_NOREQUEST | IRQ_NOPROBE, 0); - return 0; -} - -static int __init s5p64x0_init_irq_eint(void) -{ - int ret = s5p64x0_alloc_gc(); - irq_set_chained_handler(IRQ_EINT0_3, s5p64x0_irq_demux_eint0_3); - irq_set_chained_handler(IRQ_EINT4_11, s5p64x0_irq_demux_eint4_11); - irq_set_chained_handler(IRQ_EINT12_15, s5p64x0_irq_demux_eint12_15); - - return ret; -} -arch_initcall(s5p64x0_init_irq_eint); - -void s5p64x0_restart(enum reboot_mode mode, const char *cmd) -{ - if (mode != REBOOT_SOFT) - samsung_wdt_reset(); - - soft_restart(0); -} |