Lennert Buytenhek | 0c92e83 | 2006-09-21 02:46:03 +0100 | [diff] [blame] | 1 | /* |
| 2 | * arch/arm/mach-iop32x/glantank.c |
| 3 | * |
| 4 | * Board support code for the GLAN Tank. |
| 5 | * |
| 6 | * Copyright (C) 2006 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/kernel.h> |
| 18 | #include <linux/pci.h> |
| 19 | #include <linux/string.h> |
| 20 | #include <linux/slab.h> |
| 21 | #include <linux/serial_core.h> |
| 22 | #include <linux/serial_8250.h> |
| 23 | #include <linux/mtd/physmap.h> |
| 24 | #include <linux/platform_device.h> |
| 25 | #include <asm/hardware.h> |
| 26 | #include <asm/io.h> |
| 27 | #include <asm/irq.h> |
| 28 | #include <asm/mach/arch.h> |
| 29 | #include <asm/mach/map.h> |
| 30 | #include <asm/mach/pci.h> |
| 31 | #include <asm/mach/time.h> |
| 32 | #include <asm/mach-types.h> |
| 33 | #include <asm/page.h> |
Dan Williams | 3668b45 | 2007-02-13 17:13:34 +0100 | [diff] [blame^] | 34 | #include <asm/arch/time.h> |
Lennert Buytenhek | 0c92e83 | 2006-09-21 02:46:03 +0100 | [diff] [blame] | 35 | |
| 36 | /* |
| 37 | * GLAN Tank timer tick configuration. |
| 38 | */ |
| 39 | static void __init glantank_timer_init(void) |
| 40 | { |
| 41 | /* 33.333 MHz crystal. */ |
Dan Williams | 3668b45 | 2007-02-13 17:13:34 +0100 | [diff] [blame^] | 42 | iop_init_time(200000000); |
Lennert Buytenhek | 0c92e83 | 2006-09-21 02:46:03 +0100 | [diff] [blame] | 43 | } |
| 44 | |
| 45 | static struct sys_timer glantank_timer = { |
| 46 | .init = glantank_timer_init, |
Dan Williams | 3668b45 | 2007-02-13 17:13:34 +0100 | [diff] [blame^] | 47 | .offset = iop_gettimeoffset, |
Lennert Buytenhek | 0c92e83 | 2006-09-21 02:46:03 +0100 | [diff] [blame] | 48 | }; |
| 49 | |
| 50 | |
| 51 | /* |
| 52 | * GLAN Tank I/O. |
| 53 | */ |
| 54 | static struct map_desc glantank_io_desc[] __initdata = { |
| 55 | { /* on-board devices */ |
| 56 | .virtual = GLANTANK_UART, |
| 57 | .pfn = __phys_to_pfn(GLANTANK_UART), |
| 58 | .length = 0x00100000, |
| 59 | .type = MT_DEVICE |
| 60 | }, |
| 61 | }; |
| 62 | |
| 63 | void __init glantank_map_io(void) |
| 64 | { |
| 65 | iop3xx_map_io(); |
| 66 | iotable_init(glantank_io_desc, ARRAY_SIZE(glantank_io_desc)); |
| 67 | } |
| 68 | |
| 69 | |
| 70 | /* |
| 71 | * GLAN Tank PCI. |
| 72 | */ |
| 73 | #define INTA IRQ_IOP32X_XINT0 |
| 74 | #define INTB IRQ_IOP32X_XINT1 |
| 75 | #define INTC IRQ_IOP32X_XINT2 |
| 76 | #define INTD IRQ_IOP32X_XINT3 |
| 77 | |
| 78 | static inline int __init |
| 79 | glantank_pci_map_irq(struct pci_dev *dev, u8 slot, u8 pin) |
| 80 | { |
| 81 | static int pci_irq_table[][4] = { |
| 82 | /* |
| 83 | * PCI IDSEL/INTPIN->INTLINE |
| 84 | * A B C D |
| 85 | */ |
| 86 | {INTD, INTD, INTD, INTD}, /* UART (8250) */ |
| 87 | {INTA, INTA, INTA, INTA}, /* Ethernet (E1000) */ |
| 88 | {INTB, INTB, INTB, INTB}, /* IDE (AEC6280R) */ |
| 89 | {INTC, INTC, INTC, INTC}, /* USB (NEC) */ |
| 90 | }; |
| 91 | |
| 92 | BUG_ON(pin < 1 || pin > 4); |
| 93 | |
| 94 | return pci_irq_table[slot % 4][pin - 1]; |
| 95 | } |
| 96 | |
| 97 | static struct hw_pci glantank_pci __initdata = { |
| 98 | .swizzle = pci_std_swizzle, |
| 99 | .nr_controllers = 1, |
| 100 | .setup = iop3xx_pci_setup, |
| 101 | .preinit = iop3xx_pci_preinit, |
| 102 | .scan = iop3xx_pci_scan_bus, |
| 103 | .map_irq = glantank_pci_map_irq, |
| 104 | }; |
| 105 | |
| 106 | static int __init glantank_pci_init(void) |
| 107 | { |
| 108 | if (machine_is_glantank()) |
| 109 | pci_common_init(&glantank_pci); |
| 110 | |
| 111 | return 0; |
| 112 | } |
| 113 | |
| 114 | subsys_initcall(glantank_pci_init); |
| 115 | |
| 116 | |
| 117 | /* |
| 118 | * GLAN Tank machine initialization. |
| 119 | */ |
| 120 | static struct physmap_flash_data glantank_flash_data = { |
| 121 | .width = 1, |
| 122 | }; |
| 123 | |
| 124 | static struct resource glantank_flash_resource = { |
| 125 | .start = 0xf0000000, |
| 126 | .end = 0xf007ffff, |
| 127 | .flags = IORESOURCE_MEM, |
| 128 | }; |
| 129 | |
| 130 | static struct platform_device glantank_flash_device = { |
| 131 | .name = "physmap-flash", |
| 132 | .id = 0, |
| 133 | .dev = { |
| 134 | .platform_data = &glantank_flash_data, |
| 135 | }, |
| 136 | .num_resources = 1, |
| 137 | .resource = &glantank_flash_resource, |
| 138 | }; |
| 139 | |
| 140 | static struct plat_serial8250_port glantank_serial_port[] = { |
| 141 | { |
| 142 | .mapbase = GLANTANK_UART, |
| 143 | .membase = (char *)GLANTANK_UART, |
| 144 | .irq = IRQ_IOP32X_XINT3, |
| 145 | .flags = UPF_SKIP_TEST, |
| 146 | .iotype = UPIO_MEM, |
| 147 | .regshift = 0, |
| 148 | .uartclk = 1843200, |
| 149 | }, |
| 150 | { }, |
| 151 | }; |
| 152 | |
| 153 | static struct resource glantank_uart_resource = { |
| 154 | .start = GLANTANK_UART, |
| 155 | .end = GLANTANK_UART + 7, |
| 156 | .flags = IORESOURCE_MEM, |
| 157 | }; |
| 158 | |
| 159 | static struct platform_device glantank_serial_device = { |
| 160 | .name = "serial8250", |
| 161 | .id = PLAT8250_DEV_PLATFORM, |
| 162 | .dev = { |
| 163 | .platform_data = glantank_serial_port, |
| 164 | }, |
| 165 | .num_resources = 1, |
| 166 | .resource = &glantank_uart_resource, |
| 167 | }; |
| 168 | |
| 169 | static void glantank_power_off(void) |
| 170 | { |
| 171 | __raw_writeb(0x01, 0xfe8d0004); |
| 172 | |
| 173 | while (1) |
| 174 | ; |
| 175 | } |
| 176 | |
| 177 | static void __init glantank_init_machine(void) |
| 178 | { |
| 179 | platform_device_register(&iop3xx_i2c0_device); |
| 180 | platform_device_register(&iop3xx_i2c1_device); |
| 181 | platform_device_register(&glantank_flash_device); |
| 182 | platform_device_register(&glantank_serial_device); |
| 183 | |
| 184 | pm_power_off = glantank_power_off; |
| 185 | } |
| 186 | |
| 187 | MACHINE_START(GLANTANK, "GLAN Tank") |
| 188 | /* Maintainer: Lennert Buytenhek <buytenh@wantstofly.org> */ |
| 189 | .phys_io = GLANTANK_UART, |
| 190 | .io_pg_offst = ((GLANTANK_UART) >> 18) & 0xfffc, |
| 191 | .boot_params = 0xa0000100, |
| 192 | .map_io = glantank_map_io, |
| 193 | .init_irq = iop32x_init_irq, |
| 194 | .timer = &glantank_timer, |
| 195 | .init_machine = glantank_init_machine, |
| 196 | MACHINE_END |