diff options
Diffstat (limited to 'ANDROID_3.4.5/arch/arm/mach-sa1100/generic.c')
| -rw-r--r-- | ANDROID_3.4.5/arch/arm/mach-sa1100/generic.c | 450 |
1 files changed, 0 insertions, 450 deletions
diff --git a/ANDROID_3.4.5/arch/arm/mach-sa1100/generic.c b/ANDROID_3.4.5/arch/arm/mach-sa1100/generic.c deleted file mode 100644 index 16be4c56..00000000 --- a/ANDROID_3.4.5/arch/arm/mach-sa1100/generic.c +++ /dev/null @@ -1,450 +0,0 @@ -/* - * linux/arch/arm/mach-sa1100/generic.c - * - * Author: Nicolas Pitre - * - * Code common to all SA11x0 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/gpio.h> -#include <linux/module.h> -#include <linux/kernel.h> -#include <linux/init.h> -#include <linux/delay.h> -#include <linux/dma-mapping.h> -#include <linux/pm.h> -#include <linux/cpufreq.h> -#include <linux/ioport.h> -#include <linux/platform_device.h> - -#include <video/sa1100fb.h> - -#include <asm/div64.h> -#include <asm/mach/map.h> -#include <asm/mach/flash.h> -#include <asm/irq.h> -#include <asm/system_misc.h> - -#include <mach/hardware.h> -#include <mach/irqs.h> - -#include "generic.h" - -unsigned int reset_status; -EXPORT_SYMBOL(reset_status); - -#define NR_FREQS 16 - -/* - * This table is setup for a 3.6864MHz Crystal. - */ -static const unsigned short cclk_frequency_100khz[NR_FREQS] = { - 590, /* 59.0 MHz */ - 737, /* 73.7 MHz */ - 885, /* 88.5 MHz */ - 1032, /* 103.2 MHz */ - 1180, /* 118.0 MHz */ - 1327, /* 132.7 MHz */ - 1475, /* 147.5 MHz */ - 1622, /* 162.2 MHz */ - 1769, /* 176.9 MHz */ - 1917, /* 191.7 MHz */ - 2064, /* 206.4 MHz */ - 2212, /* 221.2 MHz */ - 2359, /* 235.9 MHz */ - 2507, /* 250.7 MHz */ - 2654, /* 265.4 MHz */ - 2802 /* 280.2 MHz */ -}; - -/* rounds up(!) */ -unsigned int sa11x0_freq_to_ppcr(unsigned int khz) -{ - int i; - - khz /= 100; - - for (i = 0; i < NR_FREQS; i++) - if (cclk_frequency_100khz[i] >= khz) - break; - - return i; -} - -unsigned int sa11x0_ppcr_to_freq(unsigned int idx) -{ - unsigned int freq = 0; - if (idx < NR_FREQS) - freq = cclk_frequency_100khz[idx] * 100; - return freq; -} - - -/* make sure that only the "userspace" governor is run -- anything else wouldn't make sense on - * this platform, anyway. - */ -int sa11x0_verify_speed(struct cpufreq_policy *policy) -{ - unsigned int tmp; - if (policy->cpu) - return -EINVAL; - - cpufreq_verify_within_limits(policy, policy->cpuinfo.min_freq, policy->cpuinfo.max_freq); - - /* make sure that at least one frequency is within the policy */ - tmp = cclk_frequency_100khz[sa11x0_freq_to_ppcr(policy->min)] * 100; - if (tmp > policy->max) - policy->max = tmp; - - cpufreq_verify_within_limits(policy, policy->cpuinfo.min_freq, policy->cpuinfo.max_freq); - - return 0; -} - -unsigned int sa11x0_getspeed(unsigned int cpu) -{ - if (cpu) - return 0; - return cclk_frequency_100khz[PPCR & 0xf] * 100; -} - -/* - * Default power-off for SA1100 - */ -static void sa1100_power_off(void) -{ - mdelay(100); - local_irq_disable(); - /* disable internal oscillator, float CS lines */ - PCFR = (PCFR_OPDE | PCFR_FP | PCFR_FS); - /* enable wake-up on GPIO0 (Assabet...) */ - PWER = GFER = GRER = 1; - /* - * set scratchpad to zero, just in case it is used as a - * restart address by the bootloader. - */ - PSPR = 0; - /* enter sleep mode */ - PMCR = PMCR_SF; -} - -void sa11x0_restart(char mode, const char *cmd) -{ - if (mode == 's') { - /* Jump into ROM at address 0 */ - soft_restart(0); - } else { - /* Use on-chip reset capability */ - RSRR = RSRR_SWR; - } -} - -static void sa11x0_register_device(struct platform_device *dev, void *data) -{ - int err; - dev->dev.platform_data = data; - err = platform_device_register(dev); - if (err) - printk(KERN_ERR "Unable to register device %s: %d\n", - dev->name, err); -} - - -static struct resource sa11x0udc_resources[] = { - [0] = DEFINE_RES_MEM(__PREG(Ser0UDCCR), SZ_64K), - [1] = DEFINE_RES_IRQ(IRQ_Ser0UDC), -}; - -static u64 sa11x0udc_dma_mask = 0xffffffffUL; - -static struct platform_device sa11x0udc_device = { - .name = "sa11x0-udc", - .id = -1, - .dev = { - .dma_mask = &sa11x0udc_dma_mask, - .coherent_dma_mask = 0xffffffff, - }, - .num_resources = ARRAY_SIZE(sa11x0udc_resources), - .resource = sa11x0udc_resources, -}; - -static struct resource sa11x0uart1_resources[] = { - [0] = DEFINE_RES_MEM(__PREG(Ser1UTCR0), SZ_64K), - [1] = DEFINE_RES_IRQ(IRQ_Ser1UART), -}; - -static struct platform_device sa11x0uart1_device = { - .name = "sa11x0-uart", - .id = 1, - .num_resources = ARRAY_SIZE(sa11x0uart1_resources), - .resource = sa11x0uart1_resources, -}; - -static struct resource sa11x0uart3_resources[] = { - [0] = DEFINE_RES_MEM(__PREG(Ser3UTCR0), SZ_64K), - [1] = DEFINE_RES_IRQ(IRQ_Ser3UART), -}; - -static struct platform_device sa11x0uart3_device = { - .name = "sa11x0-uart", - .id = 3, - .num_resources = ARRAY_SIZE(sa11x0uart3_resources), - .resource = sa11x0uart3_resources, -}; - -static struct resource sa11x0mcp_resources[] = { - [0] = DEFINE_RES_MEM(__PREG(Ser4MCCR0), SZ_64K), - [1] = DEFINE_RES_MEM(__PREG(Ser4MCCR1), 4), - [2] = DEFINE_RES_IRQ(IRQ_Ser4MCP), -}; - -static u64 sa11x0mcp_dma_mask = 0xffffffffUL; - -static struct platform_device sa11x0mcp_device = { - .name = "sa11x0-mcp", - .id = -1, - .dev = { - .dma_mask = &sa11x0mcp_dma_mask, - .coherent_dma_mask = 0xffffffff, - }, - .num_resources = ARRAY_SIZE(sa11x0mcp_resources), - .resource = sa11x0mcp_resources, -}; - -void __init sa11x0_ppc_configure_mcp(void) -{ - /* Setup the PPC unit for the MCP */ - PPDR &= ~PPC_RXD4; - PPDR |= PPC_TXD4 | PPC_SCLK | PPC_SFRM; - PSDR |= PPC_RXD4; - PSDR &= ~(PPC_TXD4 | PPC_SCLK | PPC_SFRM); - PPSR &= ~(PPC_TXD4 | PPC_SCLK | PPC_SFRM); -} - -void sa11x0_register_mcp(struct mcp_plat_data *data) -{ - sa11x0_register_device(&sa11x0mcp_device, data); -} - -static struct resource sa11x0ssp_resources[] = { - [0] = DEFINE_RES_MEM(0x80070000, SZ_64K), - [1] = DEFINE_RES_IRQ(IRQ_Ser4SSP), -}; - -static u64 sa11x0ssp_dma_mask = 0xffffffffUL; - -static struct platform_device sa11x0ssp_device = { - .name = "sa11x0-ssp", - .id = -1, - .dev = { - .dma_mask = &sa11x0ssp_dma_mask, - .coherent_dma_mask = 0xffffffff, - }, - .num_resources = ARRAY_SIZE(sa11x0ssp_resources), - .resource = sa11x0ssp_resources, -}; - -static struct resource sa11x0fb_resources[] = { - [0] = DEFINE_RES_MEM(0xb0100000, SZ_64K), - [1] = DEFINE_RES_IRQ(IRQ_LCD), -}; - -static struct platform_device sa11x0fb_device = { - .name = "sa11x0-fb", - .id = -1, - .dev = { - .coherent_dma_mask = 0xffffffff, - }, - .num_resources = ARRAY_SIZE(sa11x0fb_resources), - .resource = sa11x0fb_resources, -}; - -void sa11x0_register_lcd(struct sa1100fb_mach_info *inf) -{ - sa11x0_register_device(&sa11x0fb_device, inf); -} - -static struct platform_device sa11x0pcmcia_device = { - .name = "sa11x0-pcmcia", - .id = -1, -}; - -static struct platform_device sa11x0mtd_device = { - .name = "sa1100-mtd", - .id = -1, -}; - -void sa11x0_register_mtd(struct flash_platform_data *flash, - struct resource *res, int nr) -{ - flash->name = "sa1100"; - sa11x0mtd_device.resource = res; - sa11x0mtd_device.num_resources = nr; - sa11x0_register_device(&sa11x0mtd_device, flash); -} - -static struct resource sa11x0ir_resources[] = { - DEFINE_RES_MEM(__PREG(Ser2UTCR0), 0x24), - DEFINE_RES_MEM(__PREG(Ser2HSCR0), 0x1c), - DEFINE_RES_MEM(__PREG(Ser2HSCR2), 0x04), - DEFINE_RES_IRQ(IRQ_Ser2ICP), -}; - -static struct platform_device sa11x0ir_device = { - .name = "sa11x0-ir", - .id = -1, - .num_resources = ARRAY_SIZE(sa11x0ir_resources), - .resource = sa11x0ir_resources, -}; - -void sa11x0_register_irda(struct irda_platform_data *irda) -{ - sa11x0_register_device(&sa11x0ir_device, irda); -} - -static struct resource sa1100_rtc_resources[] = { - DEFINE_RES_MEM(0x90010000, 0x40), - DEFINE_RES_IRQ_NAMED(IRQ_RTC1Hz, "rtc 1Hz"), - DEFINE_RES_IRQ_NAMED(IRQ_RTCAlrm, "rtc alarm"), -}; - -static struct platform_device sa11x0rtc_device = { - .name = "sa1100-rtc", - .id = -1, - .num_resources = ARRAY_SIZE(sa1100_rtc_resources), - .resource = sa1100_rtc_resources, -}; - -static struct resource sa11x0dma_resources[] = { - DEFINE_RES_MEM(DMA_PHYS, DMA_SIZE), - DEFINE_RES_IRQ(IRQ_DMA0), - DEFINE_RES_IRQ(IRQ_DMA1), - DEFINE_RES_IRQ(IRQ_DMA2), - DEFINE_RES_IRQ(IRQ_DMA3), - DEFINE_RES_IRQ(IRQ_DMA4), - DEFINE_RES_IRQ(IRQ_DMA5), -}; - -static u64 sa11x0dma_dma_mask = DMA_BIT_MASK(32); - -static struct platform_device sa11x0dma_device = { - .name = "sa11x0-dma", - .id = -1, - .dev = { - .dma_mask = &sa11x0dma_dma_mask, - .coherent_dma_mask = 0xffffffff, - }, - .num_resources = ARRAY_SIZE(sa11x0dma_resources), - .resource = sa11x0dma_resources, -}; - -static struct platform_device *sa11x0_devices[] __initdata = { - &sa11x0udc_device, - &sa11x0uart1_device, - &sa11x0uart3_device, - &sa11x0ssp_device, - &sa11x0pcmcia_device, - &sa11x0rtc_device, - &sa11x0dma_device, -}; - -static int __init sa1100_init(void) -{ - pm_power_off = sa1100_power_off; - return platform_add_devices(sa11x0_devices, ARRAY_SIZE(sa11x0_devices)); -} - -arch_initcall(sa1100_init); - - -/* - * Common I/O mapping: - * - * Typically, static virtual address mappings are as follow: - * - * 0xf0000000-0xf3ffffff: miscellaneous stuff (CPLDs, etc.) - * 0xf4000000-0xf4ffffff: SA-1111 - * 0xf5000000-0xf5ffffff: reserved (used by cache flushing area) - * 0xf6000000-0xfffeffff: reserved (internal SA1100 IO defined above) - * 0xffff0000-0xffff0fff: SA1100 exception vectors - * 0xffff2000-0xffff2fff: Minicache copy_user_page area - * - * Below 0xe8000000 is reserved for vm allocation. - * - * The machine specific code must provide the extra mapping beside the - * default mapping provided here. - */ - -static struct map_desc standard_io_desc[] __initdata = { - { /* PCM */ - .virtual = 0xf8000000, - .pfn = __phys_to_pfn(0x80000000), - .length = 0x00100000, - .type = MT_DEVICE - }, { /* SCM */ - .virtual = 0xfa000000, - .pfn = __phys_to_pfn(0x90000000), - .length = 0x00100000, - .type = MT_DEVICE - }, { /* MER */ - .virtual = 0xfc000000, - .pfn = __phys_to_pfn(0xa0000000), - .length = 0x00100000, - .type = MT_DEVICE - }, { /* LCD + DMA */ - .virtual = 0xfe000000, - .pfn = __phys_to_pfn(0xb0000000), - .length = 0x00200000, - .type = MT_DEVICE - }, -}; - -void __init sa1100_map_io(void) -{ - iotable_init(standard_io_desc, ARRAY_SIZE(standard_io_desc)); -} - -/* - * Disable the memory bus request/grant signals on the SA1110 to - * ensure that we don't receive spurious memory requests. We set - * the MBGNT signal false to ensure the SA1111 doesn't own the - * SDRAM bus. - */ -void sa1110_mb_disable(void) -{ - unsigned long flags; - - local_irq_save(flags); - - PGSR &= ~GPIO_MBGNT; - GPCR = GPIO_MBGNT; - GPDR = (GPDR & ~GPIO_MBREQ) | GPIO_MBGNT; - - GAFR &= ~(GPIO_MBGNT | GPIO_MBREQ); - - local_irq_restore(flags); -} - -/* - * If the system is going to use the SA-1111 DMA engines, set up - * the memory bus request/grant pins. - */ -void sa1110_mb_enable(void) -{ - unsigned long flags; - - local_irq_save(flags); - - PGSR &= ~GPIO_MBGNT; - GPCR = GPIO_MBGNT; - GPDR = (GPDR & ~GPIO_MBREQ) | GPIO_MBGNT; - - GAFR |= (GPIO_MBGNT | GPIO_MBREQ); - TUCR |= TUCR_MR; - - local_irq_restore(flags); -} - |