1/* 2 * linux/arch/arm/mach-omap1/board-ams-delta.c 3 * 4 * Modified from board-generic.c 5 * 6 * Board specific inits for the Amstrad E3 (codename Delta) videophone 7 * 8 * Copyright (C) 2006 Jonathan McDowell <noodles@earth.li> 9 * 10 * This program is free software; you can redistribute it and/or modify 11 * it under the terms of the GNU General Public License version 2 as 12 * published by the Free Software Foundation. 13 */ 14 15#include <linux/kernel.h> 16#include <linux/init.h> 17#include <linux/platform_device.h> 18 19#include <asm/hardware.h> 20#include <asm/mach-types.h> 21#include <asm/mach/arch.h> 22#include <asm/mach/map.h> 23 24#include <asm/arch/board-ams-delta.h> 25#include <asm/arch/gpio.h> 26#include <asm/arch/mux.h> 27#include <asm/arch/usb.h> 28#include <asm/arch/board.h> 29#include <asm/arch/common.h> 30 31static u8 ams_delta_latch1_reg; 32static u16 ams_delta_latch2_reg; 33 34void ams_delta_latch1_write(u8 mask, u8 value) 35{ 36 ams_delta_latch1_reg &= ~mask; 37 ams_delta_latch1_reg |= value; 38 *(volatile __u8 *) AMS_DELTA_LATCH1_VIRT = ams_delta_latch1_reg; 39} 40 41void ams_delta_latch2_write(u16 mask, u16 value) 42{ 43 ams_delta_latch2_reg &= ~mask; 44 ams_delta_latch2_reg |= value; 45 *(volatile __u16 *) AMS_DELTA_LATCH2_VIRT = ams_delta_latch2_reg; 46} 47 48static void __init ams_delta_init_irq(void) 49{ 50 omap1_init_common_hw(); 51 omap_init_irq(); 52 omap_gpio_init(); 53} 54 55static struct map_desc ams_delta_io_desc[] __initdata = { 56 // AMS_DELTA_LATCH1 57 { 58 .virtual = AMS_DELTA_LATCH1_VIRT, 59 .pfn = __phys_to_pfn(AMS_DELTA_LATCH1_PHYS), 60 .length = 0x01000000, 61 .type = MT_DEVICE 62 }, 63 // AMS_DELTA_LATCH2 64 { 65 .virtual = AMS_DELTA_LATCH2_VIRT, 66 .pfn = __phys_to_pfn(AMS_DELTA_LATCH2_PHYS), 67 .length = 0x01000000, 68 .type = MT_DEVICE 69 }, 70 // AMS_DELTA_MODEM 71 { 72 .virtual = AMS_DELTA_MODEM_VIRT, 73 .pfn = __phys_to_pfn(AMS_DELTA_MODEM_PHYS), 74 .length = 0x01000000, 75 .type = MT_DEVICE 76 } 77}; 78 79static struct omap_uart_config ams_delta_uart_config __initdata = { 80 .enabled_uarts = 1, 81}; 82 83static struct omap_usb_config ams_delta_usb_config __initdata = { 84 .register_host = 1, 85 .hmc_mode = 16, 86 .pins[0] = 2, 87}; 88 89static struct omap_board_config_kernel ams_delta_config[] = { 90 { OMAP_TAG_UART, &ams_delta_uart_config }, 91 { OMAP_TAG_USB, &ams_delta_usb_config }, 92}; 93 94static struct platform_device ams_delta_led_device = { 95 .name = "ams-delta-led", 96 .id = -1 97}; 98 99static struct platform_device *ams_delta_devices[] __initdata = { 100 &ams_delta_led_device, 101}; 102 103static void __init ams_delta_init(void) 104{ 105 iotable_init(ams_delta_io_desc, ARRAY_SIZE(ams_delta_io_desc)); 106 107 omap_board_config = ams_delta_config; 108 omap_board_config_size = ARRAY_SIZE(ams_delta_config); 109 omap_serial_init(); 110 111 /* Clear latch2 (NAND, LCD, modem enable) */ 112 ams_delta_latch2_write(~0, 0); 113 114 platform_add_devices(ams_delta_devices, ARRAY_SIZE(ams_delta_devices)); 115} 116 117static void __init ams_delta_map_io(void) 118{ 119 omap1_map_common_io(); 120} 121 122MACHINE_START(AMS_DELTA, "Amstrad E3 (Delta)") 123 /* Maintainer: Jonathan McDowell <noodles@earth.li> */ 124 .phys_io = 0xfff00000, 125 .io_pg_offst = ((0xfef00000) >> 18) & 0xfffc, 126 .boot_params = 0x10000100, 127 .map_io = ams_delta_map_io, 128 .init_irq = ams_delta_init_irq, 129 .init_machine = ams_delta_init, 130 .timer = &omap_timer, 131MACHINE_END 132 133EXPORT_SYMBOL(ams_delta_latch1_write); 134EXPORT_SYMBOL(ams_delta_latch2_write); 135