Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * arch/arm/mach-ixp4xx/gtwx5715-setup.c |
| 3 | * |
Simon Arlott | 6cbdc8c | 2007-05-11 20:40:30 +0100 | [diff] [blame] | 4 | * Gemtek GTWX5715 (Linksys WRV54G) board setup |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5 | * |
| 6 | * Copyright (C) 2004 George T. Joseph |
| 7 | * Derived from Coyote |
| 8 | * |
| 9 | * This program is free software; you can redistribute it and/or |
| 10 | * modify it under the terms of the GNU General Public License |
| 11 | * as published by the Free Software Foundation; either version 2 |
| 12 | * of the License, or (at your option) any later version. |
| 13 | * |
| 14 | * This program is distributed in the hope that it will be useful, |
| 15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 17 | * GNU General Public License for more details. |
| 18 | * |
| 19 | * You should have received a copy of the GNU General Public License |
| 20 | * along with this program; if not, write to the Free Software |
| 21 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
| 22 | * |
| 23 | */ |
| 24 | |
| 25 | #include <linux/init.h> |
| 26 | #include <linux/device.h> |
| 27 | #include <linux/serial.h> |
| 28 | #include <linux/tty.h> |
| 29 | #include <linux/serial_8250.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 30 | #include <asm/types.h> |
| 31 | #include <asm/setup.h> |
| 32 | #include <asm/memory.h> |
Russell King | a09e64f | 2008-08-05 16:14:15 +0100 | [diff] [blame] | 33 | #include <mach/hardware.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 34 | #include <asm/irq.h> |
| 35 | #include <asm/mach-types.h> |
| 36 | #include <asm/mach/arch.h> |
| 37 | #include <asm/mach/flash.h> |
Krzysztof HaĆasa | a8b7b34 | 2009-11-16 23:24:57 +0100 | [diff] [blame] | 38 | |
| 39 | /* GPIO 5,6,7 and 12 are hard wired to the Kendin KS8995M Switch |
| 40 | and operate as an SPI type interface. The details of the interface |
| 41 | are available on Kendin/Micrel's web site. */ |
| 42 | |
| 43 | #define GTWX5715_KSSPI_SELECT 5 |
| 44 | #define GTWX5715_KSSPI_TXD 6 |
| 45 | #define GTWX5715_KSSPI_CLOCK 7 |
| 46 | #define GTWX5715_KSSPI_RXD 12 |
| 47 | |
| 48 | /* The "reset" button is wired to GPIO 3. |
| 49 | The GPIO is brought "low" when the button is pushed. */ |
| 50 | |
| 51 | #define GTWX5715_BUTTON_GPIO 3 |
| 52 | |
| 53 | /* Board Label Front Label |
| 54 | LED1 Power |
| 55 | LED2 Wireless-G |
| 56 | LED3 not populated but could be |
| 57 | LED4 Internet |
| 58 | LED5 - LED8 Controlled by KS8995M Switch |
| 59 | LED9 DMZ */ |
| 60 | |
| 61 | #define GTWX5715_LED1_GPIO 2 |
| 62 | #define GTWX5715_LED2_GPIO 9 |
| 63 | #define GTWX5715_LED3_GPIO 8 |
| 64 | #define GTWX5715_LED4_GPIO 1 |
| 65 | #define GTWX5715_LED9_GPIO 4 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 66 | |
| 67 | /* |
| 68 | * Xscale UART registers are 32 bits wide with only the least |
| 69 | * significant 8 bits having any meaning. From a configuration |
| 70 | * perspective, this means 2 things... |
| 71 | * |
| 72 | * Setting .regshift = 2 so that the standard 16550 registers |
| 73 | * line up on every 4th byte. |
| 74 | * |
| 75 | * Shifting the register start virtual address +3 bytes when |
| 76 | * compiled big-endian. Since register writes are done on a |
| 77 | * single byte basis, if the shift isn't done the driver will |
| 78 | * write the value into the most significant byte of the register, |
| 79 | * which is ignored, instead of the least significant. |
| 80 | */ |
| 81 | |
| 82 | #ifdef __ARMEB__ |
| 83 | #define REG_OFFSET 3 |
| 84 | #else |
| 85 | #define REG_OFFSET 0 |
| 86 | #endif |
| 87 | |
| 88 | /* |
| 89 | * Only the second or "console" uart is connected on the gtwx5715. |
| 90 | */ |
| 91 | |
| 92 | static struct resource gtwx5715_uart_resources[] = { |
| 93 | { |
| 94 | .start = IXP4XX_UART2_BASE_PHYS, |
| 95 | .end = IXP4XX_UART2_BASE_PHYS + 0x0fff, |
| 96 | .flags = IORESOURCE_MEM, |
| 97 | }, |
| 98 | { |
| 99 | .start = IRQ_IXP4XX_UART2, |
| 100 | .end = IRQ_IXP4XX_UART2, |
| 101 | .flags = IORESOURCE_IRQ, |
| 102 | }, |
| 103 | { }, |
| 104 | }; |
| 105 | |
| 106 | |
| 107 | static struct plat_serial8250_port gtwx5715_uart_platform_data[] = { |
| 108 | { |
| 109 | .mapbase = IXP4XX_UART2_BASE_PHYS, |
| 110 | .membase = (char *)IXP4XX_UART2_BASE_VIRT + REG_OFFSET, |
| 111 | .irq = IRQ_IXP4XX_UART2, |
Deepak Saxena | 8c741ed | 2005-08-03 19:58:21 +0100 | [diff] [blame] | 112 | .flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 113 | .iotype = UPIO_MEM, |
| 114 | .regshift = 2, |
| 115 | .uartclk = IXP4XX_UART_XTAL, |
| 116 | }, |
| 117 | { }, |
| 118 | }; |
| 119 | |
| 120 | static struct platform_device gtwx5715_uart_device = { |
| 121 | .name = "serial8250", |
Russell King | 6df29de | 2005-09-08 16:04:41 +0100 | [diff] [blame] | 122 | .id = PLAT8250_DEV_PLATFORM, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 123 | .dev = { |
| 124 | .platform_data = gtwx5715_uart_platform_data, |
| 125 | }, |
| 126 | .num_resources = 2, |
| 127 | .resource = gtwx5715_uart_resources, |
| 128 | }; |
| 129 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 130 | static struct flash_platform_data gtwx5715_flash_data = { |
| 131 | .map_name = "cfi_probe", |
| 132 | .width = 2, |
| 133 | }; |
| 134 | |
Martin Michlmayr | 4c756f4 | 2006-08-06 09:59:26 +0100 | [diff] [blame] | 135 | static struct resource gtwx5715_flash_resource = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 136 | .flags = IORESOURCE_MEM, |
Martin Michlmayr | 4c756f4 | 2006-08-06 09:59:26 +0100 | [diff] [blame] | 137 | }; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 138 | |
| 139 | static struct platform_device gtwx5715_flash = { |
| 140 | .name = "IXP4XX-Flash", |
| 141 | .id = 0, |
| 142 | .dev = { |
| 143 | .platform_data = >wx5715_flash_data, |
| 144 | }, |
| 145 | .num_resources = 1, |
| 146 | .resource = >wx5715_flash_resource, |
| 147 | }; |
| 148 | |
| 149 | static struct platform_device *gtwx5715_devices[] __initdata = { |
| 150 | >wx5715_uart_device, |
| 151 | >wx5715_flash, |
| 152 | }; |
| 153 | |
| 154 | static void __init gtwx5715_init(void) |
| 155 | { |
Deepak Saxena | 54e269e | 2006-01-05 20:59:29 +0000 | [diff] [blame] | 156 | ixp4xx_sys_init(); |
| 157 | |
Deepak Saxena | 54e269e | 2006-01-05 20:59:29 +0000 | [diff] [blame] | 158 | gtwx5715_flash_resource.start = IXP4XX_EXP_BUS_BASE(0); |
| 159 | gtwx5715_flash_resource.end = IXP4XX_EXP_BUS_BASE(0) + SZ_8M - 1; |
| 160 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 161 | platform_add_devices(gtwx5715_devices, ARRAY_SIZE(gtwx5715_devices)); |
| 162 | } |
| 163 | |
| 164 | |
| 165 | MACHINE_START(GTWX5715, "Gemtek GTWX5715 (Linksys WRV54G)") |
Russell King | e9dea0c | 2005-07-03 17:38:58 +0100 | [diff] [blame] | 166 | /* Maintainer: George Joseph */ |
Deepak Saxena | e605ecd | 2005-08-29 22:46:29 +0100 | [diff] [blame] | 167 | .map_io = ixp4xx_map_io, |
Rob Herring | f449588 | 2012-03-06 15:01:53 -0600 | [diff] [blame] | 168 | .init_early = ixp4xx_init_early, |
Russell King | e9dea0c | 2005-07-03 17:38:58 +0100 | [diff] [blame] | 169 | .init_irq = ixp4xx_init_irq, |
| 170 | .timer = &ixp4xx_timer, |
Nicolas Pitre | e022c72 | 2011-07-05 22:38:13 -0400 | [diff] [blame] | 171 | .atag_offset = 0x100, |
Russell King | e9dea0c | 2005-07-03 17:38:58 +0100 | [diff] [blame] | 172 | .init_machine = gtwx5715_init, |
Nicolas Pitre | 7553ee7 | 2011-07-05 22:28:09 -0400 | [diff] [blame] | 173 | #if defined(CONFIG_PCI) |
| 174 | .dma_zone_size = SZ_64M, |
| 175 | #endif |
Russell King | d1b860f | 2011-11-05 12:10:55 +0000 | [diff] [blame] | 176 | .restart = ixp4xx_restart, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 177 | MACHINE_END |
| 178 | |
| 179 | |