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 31 static u8 ams_delta_latch1_reg; 32 static u16 ams_delta_latch2_reg; 33 34 void 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 41 void 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 48 static void __init ams_delta_init_irq(void) 49 { 50 omap1_init_common_hw(); 51 omap_init_irq(); 52 omap_gpio_init(); 53 } 54 55 static 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 79 static struct omap_uart_config ams_delta_uart_config __initdata = { 80 .enabled_uarts = 1, 81 }; 82 83 static struct omap_board_config_kernel ams_delta_config[] = { 84 { OMAP_TAG_UART, &ams_delta_uart_config }, 85 }; 86 87 static void __init ams_delta_init(void) 88 { 89 iotable_init(ams_delta_io_desc, ARRAY_SIZE(ams_delta_io_desc)); 90 91 omap_board_config = ams_delta_config; 92 omap_board_config_size = ARRAY_SIZE(ams_delta_config); 93 omap_serial_init(); 94 95 /* Clear latch2 (NAND, LCD, modem enable) */ 96 ams_delta_latch2_write(~0, 0); 97 } 98 99 static void __init ams_delta_map_io(void) 100 { 101 omap1_map_common_io(); 102 } 103 104 MACHINE_START(AMS_DELTA, "Amstrad E3 (Delta)") 105 /* Maintainer: Jonathan McDowell <noodles@earth.li> */ 106 .phys_io = 0xfff00000, 107 .io_pg_offst = ((0xfef00000) >> 18) & 0xfffc, 108 .boot_params = 0x10000100, 109 .map_io = ams_delta_map_io, 110 .init_irq = ams_delta_init_irq, 111 .init_machine = ams_delta_init, 112 .timer = &omap_timer, 113 MACHINE_END 114 115 EXPORT_SYMBOL(ams_delta_latch1_write); 116 EXPORT_SYMBOL(ams_delta_latch2_write); 117