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Diffstat (limited to 'arch/arm/mach-aaec2000/core.c')
| -rw-r--r-- | arch/arm/mach-aaec2000/core.c | 298 |
1 files changed, 0 insertions, 298 deletions
diff --git a/arch/arm/mach-aaec2000/core.c b/arch/arm/mach-aaec2000/core.c deleted file mode 100644 index f8465bd17e67..000000000000 --- a/arch/arm/mach-aaec2000/core.c +++ /dev/null @@ -1,298 +0,0 @@ -/* - * linux/arch/arm/mach-aaec2000/core.c - * - * Code common to all AAEC-2000 machines - * - * Copyright (c) 2005 Nicolas Bellido Y Ortega - * - * 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/module.h> -#include <linux/kernel.h> -#include <linux/init.h> -#include <linux/platform_device.h> -#include <linux/list.h> -#include <linux/errno.h> -#include <linux/dma-mapping.h> -#include <linux/interrupt.h> -#include <linux/timex.h> -#include <linux/signal.h> -#include <linux/clk.h> -#include <linux/gfp.h> - -#include <mach/hardware.h> -#include <asm/irq.h> -#include <asm/sizes.h> - -#include <asm/mach/flash.h> -#include <asm/mach/irq.h> -#include <asm/mach/time.h> -#include <asm/mach/map.h> - -#include "core.h" - -/* - * Common I/O mapping: - * - * Static virtual address mappings are as follow: - * - * 0xf8000000-0xf8001ffff: Devices connected to APB bus - * 0xf8002000-0xf8003ffff: Devices connected to AHB bus - * - * 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 = { - { - .virtual = VIO_APB_BASE, - .pfn = __phys_to_pfn(PIO_APB_BASE), - .length = IO_APB_LENGTH, - .type = MT_DEVICE - }, { - .virtual = VIO_AHB_BASE, - .pfn = __phys_to_pfn(PIO_AHB_BASE), - .length = IO_AHB_LENGTH, - .type = MT_DEVICE - } -}; - -void __init aaec2000_map_io(void) -{ - iotable_init(standard_io_desc, ARRAY_SIZE(standard_io_desc)); -} - -/* - * Interrupt handling routines - */ -static void aaec2000_int_ack(struct irq_data *d) -{ - IRQ_INTSR = 1 << d->irq; -} - -static void aaec2000_int_mask(struct irq_data *d) -{ - IRQ_INTENC |= (1 << d->irq); -} - -static void aaec2000_int_unmask(struct irq_data *d) -{ - IRQ_INTENS |= (1 << d->irq); -} - -static struct irq_chip aaec2000_irq_chip = { - .irq_ack = aaec2000_int_ack, - .irq_mask = aaec2000_int_mask, - .irq_unmask = aaec2000_int_unmask, -}; - -void __init aaec2000_init_irq(void) -{ - unsigned int i; - - for (i = 0; i < NR_IRQS; i++) { - set_irq_handler(i, handle_level_irq); - set_irq_chip(i, &aaec2000_irq_chip); - set_irq_flags(i, IRQF_VALID); - } - - /* Disable all interrupts */ - IRQ_INTENC = 0xffffffff; - - /* Clear any pending interrupts */ - IRQ_INTSR = IRQ_INTSR; -} - -/* - * Time keeping - */ -/* IRQs are disabled before entering here from do_gettimeofday() */ -static unsigned long aaec2000_gettimeoffset(void) -{ - unsigned long ticks_to_match, elapsed, usec; - - /* Get ticks before next timer match */ - ticks_to_match = TIMER1_LOAD - TIMER1_VAL; - - /* We need elapsed ticks since last match */ - elapsed = LATCH - ticks_to_match; - - /* Now, convert them to usec */ - usec = (unsigned long)(elapsed * (tick_nsec / 1000))/LATCH; - - return usec; -} - -/* We enter here with IRQs enabled */ -static irqreturn_t -aaec2000_timer_interrupt(int irq, void *dev_id) -{ - /* TODO: Check timer accuracy */ - timer_tick(); - TIMER1_CLEAR = 1; - - return IRQ_HANDLED; -} - -static struct irqaction aaec2000_timer_irq = { - .name = "AAEC-2000 Timer Tick", - .flags = IRQF_DISABLED | IRQF_TIMER | IRQF_IRQPOLL, - .handler = aaec2000_timer_interrupt, -}; - -static void __init aaec2000_timer_init(void) -{ - /* Disable timer 1 */ - TIMER1_CTRL = 0; - - /* We have somehow to generate a 100Hz clock. - * We then use the 508KHz timer in periodic mode. - */ - TIMER1_LOAD = LATCH; - TIMER1_CLEAR = 1; /* Clear interrupt */ - - setup_irq(INT_TMR1_OFL, &aaec2000_timer_irq); - - TIMER1_CTRL = TIMER_CTRL_ENABLE | - TIMER_CTRL_PERIODIC | - TIMER_CTRL_CLKSEL_508K; -} - -struct sys_timer aaec2000_timer = { - .init = aaec2000_timer_init, - .offset = aaec2000_gettimeoffset, -}; - -static struct clcd_panel mach_clcd_panel; - -static int aaec2000_clcd_setup(struct clcd_fb *fb) -{ - dma_addr_t dma; - - fb->panel = &mach_clcd_panel; - - fb->fb.screen_base = dma_alloc_writecombine(&fb->dev->dev, SZ_1M, - &dma, GFP_KERNEL); - - if (!fb->fb.screen_base) { - printk(KERN_ERR "CLCD: unable to map framebuffer\n"); - return -ENOMEM; - } - - fb->fb.fix.smem_start = dma; - fb->fb.fix.smem_len = SZ_1M; - - return 0; -} - -static int aaec2000_clcd_mmap(struct clcd_fb *fb, struct vm_area_struct *vma) -{ - return dma_mmap_writecombine(&fb->dev->dev, vma, - fb->fb.screen_base, - fb->fb.fix.smem_start, - fb->fb.fix.smem_len); -} - -static void aaec2000_clcd_remove(struct clcd_fb *fb) -{ - dma_free_writecombine(&fb->dev->dev, fb->fb.fix.smem_len, - fb->fb.screen_base, fb->fb.fix.smem_start); -} - -static struct clcd_board clcd_plat_data = { - .name = "AAEC-2000", - .check = clcdfb_check, - .decode = clcdfb_decode, - .setup = aaec2000_clcd_setup, - .mmap = aaec2000_clcd_mmap, - .remove = aaec2000_clcd_remove, -}; - -static struct amba_device clcd_device = { - .dev = { - .init_name = "mb:16", - .coherent_dma_mask = ~0, - .platform_data = &clcd_plat_data, - }, - .res = { - .start = AAEC_CLCD_PHYS, - .end = AAEC_CLCD_PHYS + SZ_4K - 1, - .flags = IORESOURCE_MEM, - }, - .irq = { INT_LCD, NO_IRQ }, - .periphid = 0x41110, -}; - -static struct amba_device *amba_devs[] __initdata = { - &clcd_device, -}; - -void clk_disable(struct clk *clk) -{ -} - -int clk_set_rate(struct clk *clk, unsigned long rate) -{ - return 0; -} - -int clk_enable(struct clk *clk) -{ - return 0; -} - -struct clk *clk_get(struct device *dev, const char *id) -{ - return dev && strcmp(dev_name(dev), "mb:16") == 0 ? NULL : ERR_PTR(-ENOENT); -} - -void clk_put(struct clk *clk) -{ -} - -void __init aaec2000_set_clcd_plat_data(struct aaec2000_clcd_info *clcd) -{ - clcd_plat_data.enable = clcd->enable; - clcd_plat_data.disable = clcd->disable; - memcpy(&mach_clcd_panel, &clcd->panel, sizeof(struct clcd_panel)); -} - -static struct flash_platform_data aaec2000_flash_data = { - .map_name = "cfi_probe", - .width = 4, -}; - -static struct resource aaec2000_flash_resource = { - .start = AAEC_FLASH_BASE, - .end = AAEC_FLASH_BASE + AAEC_FLASH_SIZE, - .flags = IORESOURCE_MEM, -}; - -static struct platform_device aaec2000_flash_device = { - .name = "armflash", - .id = 0, - .dev = { - .platform_data = &aaec2000_flash_data, - }, - .num_resources = 1, - .resource = &aaec2000_flash_resource, -}; - -static int __init aaec2000_init(void) -{ - int i; - - for (i = 0; i < ARRAY_SIZE(amba_devs); i++) { - struct amba_device *d = amba_devs[i]; - amba_device_register(d, &iomem_resource); - } - - platform_device_register(&aaec2000_flash_device); - - return 0; -}; -arch_initcall(aaec2000_init); - |