1/* 2 * arch/arm/mach-iop32x/glantank.c 3 * 4 * Board support code for the GLAN Tank. 5 * 6 * Copyright (C) 2006, 2007 Martin Michlmayr <tbm@cyrius.com> 7 * Copyright (C) 2006 Lennert Buytenhek <buytenh@wantstofly.org> 8 * 9 * This program is free software; you can redistribute it and/or modify it 10 * under the terms of the GNU General Public License as published by the 11 * Free Software Foundation; either version 2 of the License, or (at your 12 * option) any later version. 13 */ 14 15#include <linux/mm.h> 16#include <linux/init.h> 17#include <linux/f75375s.h> 18#include <linux/kernel.h> 19#include <linux/pci.h> 20#include <linux/pm.h> 21#include <linux/string.h> 22#include <linux/serial_core.h> 23#include <linux/serial_8250.h> 24#include <linux/mtd/physmap.h> 25#include <linux/i2c.h> 26#include <linux/platform_device.h> 27#include <linux/io.h> 28#include <mach/hardware.h> 29#include <asm/irq.h> 30#include <asm/mach/arch.h> 31#include <asm/mach/map.h> 32#include <asm/mach/pci.h> 33#include <asm/mach/time.h> 34#include <asm/mach-types.h> 35#include <asm/page.h> 36#include <mach/time.h> 37 38/* 39 * GLAN Tank timer tick configuration. 40 */ 41static void __init glantank_timer_init(void) 42{ 43 /* 33.333 MHz crystal. */ 44 iop_init_time(200000000); 45} 46 47static struct sys_timer glantank_timer = { 48 .init = glantank_timer_init, 49}; 50 51 52/* 53 * GLAN Tank I/O. 54 */ 55static struct map_desc glantank_io_desc[] __initdata = { 56 { /* on-board devices */ 57 .virtual = GLANTANK_UART, 58 .pfn = __phys_to_pfn(GLANTANK_UART), 59 .length = 0x00100000, 60 .type = MT_DEVICE 61 }, 62}; 63 64void __init glantank_map_io(void) 65{ 66 iop3xx_map_io(); 67 iotable_init(glantank_io_desc, ARRAY_SIZE(glantank_io_desc)); 68} 69 70 71/* 72 * GLAN Tank PCI. 73 */ 74#define INTA IRQ_IOP32X_XINT0 75#define INTB IRQ_IOP32X_XINT1 76#define INTC IRQ_IOP32X_XINT2 77#define INTD IRQ_IOP32X_XINT3 78 79static int __init 80glantank_pci_map_irq(struct pci_dev *dev, u8 slot, u8 pin) 81{ 82 static int pci_irq_table[][4] = { 83 /* 84 * PCI IDSEL/INTPIN->INTLINE 85 * A B C D 86 */ 87 {INTD, INTD, INTD, INTD}, /* UART (8250) */ 88 {INTA, INTA, INTA, INTA}, /* Ethernet (E1000) */ 89 {INTB, INTB, INTB, INTB}, /* IDE (AEC6280R) */ 90 {INTC, INTC, INTC, INTC}, /* USB (NEC) */ 91 }; 92 93 BUG_ON(pin < 1 || pin > 4); 94 95 return pci_irq_table[slot % 4][pin - 1]; 96} 97 98static struct hw_pci glantank_pci __initdata = { 99 .swizzle = pci_std_swizzle, 100 .nr_controllers = 1, 101 .setup = iop3xx_pci_setup, 102 .preinit = iop3xx_pci_preinit, 103 .scan = iop3xx_pci_scan_bus, 104 .map_irq = glantank_pci_map_irq, 105}; 106 107static int __init glantank_pci_init(void) 108{ 109 if (machine_is_glantank()) 110 pci_common_init(&glantank_pci); 111 112 return 0; 113} 114 115subsys_initcall(glantank_pci_init); 116 117 118/* 119 * GLAN Tank machine initialization. 120 */ 121static struct physmap_flash_data glantank_flash_data = { 122 .width = 2, 123}; 124 125static struct resource glantank_flash_resource = { 126 .start = 0xf0000000, 127 .end = 0xf007ffff, 128 .flags = IORESOURCE_MEM, 129}; 130 131static struct platform_device glantank_flash_device = { 132 .name = "physmap-flash", 133 .id = 0, 134 .dev = { 135 .platform_data = &glantank_flash_data, 136 }, 137 .num_resources = 1, 138 .resource = &glantank_flash_resource, 139}; 140 141static struct plat_serial8250_port glantank_serial_port[] = { 142 { 143 .mapbase = GLANTANK_UART, 144 .membase = (char *)GLANTANK_UART, 145 .irq = IRQ_IOP32X_XINT3, 146 .flags = UPF_SKIP_TEST, 147 .iotype = UPIO_MEM, 148 .regshift = 0, 149 .uartclk = 1843200, 150 }, 151 { }, 152}; 153 154static struct resource glantank_uart_resource = { 155 .start = GLANTANK_UART, 156 .end = GLANTANK_UART + 7, 157 .flags = IORESOURCE_MEM, 158}; 159 160static struct platform_device glantank_serial_device = { 161 .name = "serial8250", 162 .id = PLAT8250_DEV_PLATFORM, 163 .dev = { 164 .platform_data = glantank_serial_port, 165 }, 166 .num_resources = 1, 167 .resource = &glantank_uart_resource, 168}; 169 170static struct f75375s_platform_data glantank_f75375s = { 171 .pwm = { 255, 255 }, 172 .pwm_enable = { 0, 0 }, 173}; 174 175static struct i2c_board_info __initdata glantank_i2c_devices[] = { 176 { 177 I2C_BOARD_INFO("rs5c372a", 0x32), 178 }, 179 { 180 I2C_BOARD_INFO("f75375", 0x2e), 181 .platform_data = &glantank_f75375s, 182 }, 183}; 184 185static void glantank_power_off(void) 186{ 187 __raw_writeb(0x01, 0xfe8d0004); 188 189 while (1) 190 ; 191} 192 193static void __init glantank_init_machine(void) 194{ 195 platform_device_register(&iop3xx_i2c0_device); 196 platform_device_register(&iop3xx_i2c1_device); 197 platform_device_register(&glantank_flash_device); 198 platform_device_register(&glantank_serial_device); 199 platform_device_register(&iop3xx_dma_0_channel); 200 platform_device_register(&iop3xx_dma_1_channel); 201 202 i2c_register_board_info(0, glantank_i2c_devices, 203 ARRAY_SIZE(glantank_i2c_devices)); 204 205 pm_power_off = glantank_power_off; 206} 207 208MACHINE_START(GLANTANK, "GLAN Tank") 209 /* Maintainer: Lennert Buytenhek <buytenh@wantstofly.org> */ 210 .phys_io = GLANTANK_UART, 211 .io_pg_offst = ((GLANTANK_UART) >> 18) & 0xfffc, 212 .boot_params = 0xa0000100, 213 .map_io = glantank_map_io, 214 .init_irq = iop32x_init_irq, 215 .timer = &glantank_timer, 216 .init_machine = glantank_init_machine, 217MACHINE_END 218