diff options
Diffstat (limited to 'arch/arm/mach-clps7500/core.c')
| -rw-r--r-- | arch/arm/mach-clps7500/core.c | 395 |
1 files changed, 0 insertions, 395 deletions
diff --git a/arch/arm/mach-clps7500/core.c b/arch/arm/mach-clps7500/core.c deleted file mode 100644 index c3a33b8a5aa..00000000000 --- a/arch/arm/mach-clps7500/core.c +++ /dev/null @@ -1,395 +0,0 @@ -/* - * linux/arch/arm/mach-clps7500/core.c - * - * Copyright (C) 1998 Russell King - * Copyright (C) 1999 Nexus Electronics Ltd - * - * Extra MM routines for CL7500 architecture - */ -#include <linux/kernel.h> -#include <linux/types.h> -#include <linux/interrupt.h> -#include <linux/irq.h> -#include <linux/list.h> -#include <linux/sched.h> -#include <linux/init.h> -#include <linux/device.h> -#include <linux/serial_8250.h> -#include <linux/io.h> - -#include <asm/mach/arch.h> -#include <asm/mach/map.h> -#include <asm/mach/irq.h> -#include <asm/mach/time.h> - -#include <mach/hardware.h> -#include <asm/hardware/iomd.h> -#include <asm/irq.h> -#include <asm/mach-types.h> - -unsigned int vram_size; - -static void cl7500_ack_irq_a(unsigned int irq) -{ - unsigned int val, mask; - - mask = 1 << irq; - val = iomd_readb(IOMD_IRQMASKA); - iomd_writeb(val & ~mask, IOMD_IRQMASKA); - iomd_writeb(mask, IOMD_IRQCLRA); -} - -static void cl7500_mask_irq_a(unsigned int irq) -{ - unsigned int val, mask; - - mask = 1 << irq; - val = iomd_readb(IOMD_IRQMASKA); - iomd_writeb(val & ~mask, IOMD_IRQMASKA); -} - -static void cl7500_unmask_irq_a(unsigned int irq) -{ - unsigned int val, mask; - - mask = 1 << irq; - val = iomd_readb(IOMD_IRQMASKA); - iomd_writeb(val | mask, IOMD_IRQMASKA); -} - -static struct irq_chip clps7500_a_chip = { - .ack = cl7500_ack_irq_a, - .mask = cl7500_mask_irq_a, - .unmask = cl7500_unmask_irq_a, -}; - -static void cl7500_mask_irq_b(unsigned int irq) -{ - unsigned int val, mask; - - mask = 1 << (irq & 7); - val = iomd_readb(IOMD_IRQMASKB); - iomd_writeb(val & ~mask, IOMD_IRQMASKB); -} - -static void cl7500_unmask_irq_b(unsigned int irq) -{ - unsigned int val, mask; - - mask = 1 << (irq & 7); - val = iomd_readb(IOMD_IRQMASKB); - iomd_writeb(val | mask, IOMD_IRQMASKB); -} - -static struct irq_chip clps7500_b_chip = { - .ack = cl7500_mask_irq_b, - .mask = cl7500_mask_irq_b, - .unmask = cl7500_unmask_irq_b, -}; - -static void cl7500_mask_irq_c(unsigned int irq) -{ - unsigned int val, mask; - - mask = 1 << (irq & 7); - val = iomd_readb(IOMD_IRQMASKC); - iomd_writeb(val & ~mask, IOMD_IRQMASKC); -} - -static void cl7500_unmask_irq_c(unsigned int irq) -{ - unsigned int val, mask; - - mask = 1 << (irq & 7); - val = iomd_readb(IOMD_IRQMASKC); - iomd_writeb(val | mask, IOMD_IRQMASKC); -} - -static struct irq_chip clps7500_c_chip = { - .ack = cl7500_mask_irq_c, - .mask = cl7500_mask_irq_c, - .unmask = cl7500_unmask_irq_c, -}; - -static void cl7500_mask_irq_d(unsigned int irq) -{ - unsigned int val, mask; - - mask = 1 << (irq & 7); - val = iomd_readb(IOMD_IRQMASKD); - iomd_writeb(val & ~mask, IOMD_IRQMASKD); -} - -static void cl7500_unmask_irq_d(unsigned int irq) -{ - unsigned int val, mask; - - mask = 1 << (irq & 7); - val = iomd_readb(IOMD_IRQMASKD); - iomd_writeb(val | mask, IOMD_IRQMASKD); -} - -static struct irq_chip clps7500_d_chip = { - .ack = cl7500_mask_irq_d, - .mask = cl7500_mask_irq_d, - .unmask = cl7500_unmask_irq_d, -}; - -static void cl7500_mask_irq_dma(unsigned int irq) -{ - unsigned int val, mask; - - mask = 1 << (irq & 7); - val = iomd_readb(IOMD_DMAMASK); - iomd_writeb(val & ~mask, IOMD_DMAMASK); -} - -static void cl7500_unmask_irq_dma(unsigned int irq) -{ - unsigned int val, mask; - - mask = 1 << (irq & 7); - val = iomd_readb(IOMD_DMAMASK); - iomd_writeb(val | mask, IOMD_DMAMASK); -} - -static struct irq_chip clps7500_dma_chip = { - .ack = cl7500_mask_irq_dma, - .mask = cl7500_mask_irq_dma, - .unmask = cl7500_unmask_irq_dma, -}; - -static void cl7500_mask_irq_fiq(unsigned int irq) -{ - unsigned int val, mask; - - mask = 1 << (irq & 7); - val = iomd_readb(IOMD_FIQMASK); - iomd_writeb(val & ~mask, IOMD_FIQMASK); -} - -static void cl7500_unmask_irq_fiq(unsigned int irq) -{ - unsigned int val, mask; - - mask = 1 << (irq & 7); - val = iomd_readb(IOMD_FIQMASK); - iomd_writeb(val | mask, IOMD_FIQMASK); -} - -static struct irq_chip clps7500_fiq_chip = { - .ack = cl7500_mask_irq_fiq, - .mask = cl7500_mask_irq_fiq, - .unmask = cl7500_unmask_irq_fiq, -}; - -static void cl7500_no_action(unsigned int irq) -{ -} - -static struct irq_chip clps7500_no_chip = { - .ack = cl7500_no_action, - .mask = cl7500_no_action, - .unmask = cl7500_no_action, -}; - -static struct irqaction irq_isa = { - .handler = no_action, - .mask = CPU_MASK_NONE, - .name = "isa", -}; - -static void __init clps7500_init_irq(void) -{ - unsigned int irq, flags; - - iomd_writeb(0, IOMD_IRQMASKA); - iomd_writeb(0, IOMD_IRQMASKB); - iomd_writeb(0, IOMD_FIQMASK); - iomd_writeb(0, IOMD_DMAMASK); - - for (irq = 0; irq < NR_IRQS; irq++) { - flags = IRQF_VALID; - - if (irq <= 6 || (irq >= 9 && irq <= 15) || - (irq >= 48 && irq <= 55)) - flags |= IRQF_PROBE; - - switch (irq) { - case 0 ... 7: - set_irq_chip(irq, &clps7500_a_chip); - set_irq_handler(irq, handle_level_irq); - set_irq_flags(irq, flags); - break; - - case 8 ... 15: - set_irq_chip(irq, &clps7500_b_chip); - set_irq_handler(irq, handle_level_irq); - set_irq_flags(irq, flags); - break; - - case 16 ... 22: - set_irq_chip(irq, &clps7500_dma_chip); - set_irq_handler(irq, handle_level_irq); - set_irq_flags(irq, flags); - break; - - case 24 ... 31: - set_irq_chip(irq, &clps7500_c_chip); - set_irq_handler(irq, handle_level_irq); - set_irq_flags(irq, flags); - break; - - case 40 ... 47: - set_irq_chip(irq, &clps7500_d_chip); - set_irq_handler(irq, handle_level_irq); - set_irq_flags(irq, flags); - break; - - case 48 ... 55: - set_irq_chip(irq, &clps7500_no_chip); - set_irq_handler(irq, handle_level_irq); - set_irq_flags(irq, flags); - break; - - case 64 ... 72: - set_irq_chip(irq, &clps7500_fiq_chip); - set_irq_handler(irq, handle_level_irq); - set_irq_flags(irq, flags); - break; - } - } - - setup_irq(IRQ_ISA, &irq_isa); -} - -static struct map_desc cl7500_io_desc[] __initdata = { - { /* IO space */ - .virtual = (unsigned long)IO_BASE, - .pfn = __phys_to_pfn(IO_START), - .length = IO_SIZE, - .type = MT_DEVICE - }, { /* ISA space */ - .virtual = ISA_BASE, - .pfn = __phys_to_pfn(ISA_START), - .length = ISA_SIZE, - .type = MT_DEVICE - }, { /* Flash */ - .virtual = FLASH_BASE, - .pfn = __phys_to_pfn(FLASH_START), - .length = FLASH_SIZE, - .type = MT_DEVICE - }, { /* LED */ - .virtual = LED_BASE, - .pfn = __phys_to_pfn(LED_START), - .length = LED_SIZE, - .type = MT_DEVICE - } -}; - -static void __init clps7500_map_io(void) -{ - iotable_init(cl7500_io_desc, ARRAY_SIZE(cl7500_io_desc)); -} - -extern void ioctime_init(void); -extern unsigned long ioc_timer_gettimeoffset(void); - -static irqreturn_t -clps7500_timer_interrupt(int irq, void *dev_id) -{ - timer_tick(); - - /* Why not using do_leds interface?? */ - { - /* Twinkle the lights. */ - static int count, state = 0xff00; - if (count-- == 0) { - state ^= 0x100; - count = 25; - *((volatile unsigned int *)LED_ADDRESS) = state; - } - } - - return IRQ_HANDLED; -} - -static struct irqaction clps7500_timer_irq = { - .name = "CLPS7500 Timer Tick", - .flags = IRQF_DISABLED | IRQF_TIMER | IRQF_IRQPOLL, - .handler = clps7500_timer_interrupt, -}; - -/* - * Set up timer interrupt. - */ -static void __init clps7500_timer_init(void) -{ - ioctime_init(); - setup_irq(IRQ_TIMER, &clps7500_timer_irq); -} - -static struct sys_timer clps7500_timer = { - .init = clps7500_timer_init, - .offset = ioc_timer_gettimeoffset, -}; - -static struct plat_serial8250_port serial_platform_data[] = { - { - .mapbase = 0x03010fe0, - .irq = 10, - .uartclk = 1843200, - .regshift = 2, - .iotype = UPIO_MEM, - .flags = UPF_BOOT_AUTOCONF | UPF_IOREMAP | UPF_SKIP_TEST, - }, - { - .mapbase = 0x03010be0, - .irq = 0, - .uartclk = 1843200, - .regshift = 2, - .iotype = UPIO_MEM, - .flags = UPF_BOOT_AUTOCONF | UPF_IOREMAP | UPF_SKIP_TEST, - }, - { - .iobase = ISASLOT_IO + 0x2e8, - .irq = 41, - .uartclk = 1843200, - .regshift = 0, - .iotype = UPIO_PORT, - .flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST, - }, - { - .iobase = ISASLOT_IO + 0x3e8, - .irq = 40, - .uartclk = 1843200, - .regshift = 0, - .iotype = UPIO_PORT, - .flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST, - }, - { }, -}; - -static struct platform_device serial_device = { - .name = "serial8250", - .id = PLAT8250_DEV_PLATFORM, - .dev = { - .platform_data = serial_platform_data, - }, -}; - -static void __init clps7500_init(void) -{ - platform_device_register(&serial_device); -} - -MACHINE_START(CLPS7500, "CL-PS7500") - /* Maintainer: Philip Blundell */ - .phys_io = 0x03000000, - .io_pg_offst = ((0xe0000000) >> 18) & 0xfffc, - .map_io = clps7500_map_io, - .init_irq = clps7500_init_irq, - .init_machine = clps7500_init, - .timer = &clps7500_timer, -MACHINE_END - |