Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * linux/arch/arm/mach-sa1100/collie.c |
| 3 | * |
| 4 | * May be copied or modified under the terms of the GNU General Public |
| 5 | * License. See linux/COPYING for more information. |
| 6 | * |
| 7 | * This file contains all Collie-specific tweaks. |
| 8 | * |
| 9 | * This program is free software; you can redistribute it and/or modify |
| 10 | * it under the terms of the GNU General Public License version 2 as |
| 11 | * published by the Free Software Foundation. |
| 12 | * |
| 13 | * ChangeLog: |
Pavel Machek | 50c37e2 | 2006-04-01 12:13:31 +0100 | [diff] [blame] | 14 | * 2006 Pavel Machek <pavel@suse.cz> |
| 15 | * 03-06-2004 John Lenz <lenz@cs.wisc.edu> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 16 | * 06-04-2002 Chris Larson <kergoth@digitalnemesis.net> |
| 17 | * 04-16-2001 Lineo Japan,Inc. ... |
| 18 | */ |
| 19 | |
| 20 | #include <linux/config.h> |
| 21 | #include <linux/init.h> |
| 22 | #include <linux/kernel.h> |
| 23 | #include <linux/tty.h> |
| 24 | #include <linux/delay.h> |
Russell King | d052d1b | 2005-10-29 19:07:23 +0100 | [diff] [blame] | 25 | #include <linux/platform_device.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 26 | #include <linux/mtd/mtd.h> |
| 27 | #include <linux/mtd/partitions.h> |
| 28 | #include <linux/timer.h> |
| 29 | |
| 30 | #include <asm/hardware.h> |
| 31 | #include <asm/mach-types.h> |
| 32 | #include <asm/irq.h> |
| 33 | #include <asm/setup.h> |
| 34 | #include <asm/arch/collie.h> |
| 35 | |
| 36 | #include <asm/mach/arch.h> |
| 37 | #include <asm/mach/flash.h> |
| 38 | #include <asm/mach/map.h> |
| 39 | #include <asm/mach/serial_sa1100.h> |
| 40 | |
| 41 | #include <asm/hardware/scoop.h> |
| 42 | #include <asm/mach/sharpsl_param.h> |
| 43 | #include <asm/hardware/locomo.h> |
Pavel Machek | 44575b2 | 2006-03-25 03:07:34 -0800 | [diff] [blame] | 44 | #include <asm/arch/mcp.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 45 | |
| 46 | #include "generic.h" |
| 47 | |
| 48 | static struct resource collie_scoop_resources[] = { |
| 49 | [0] = { |
| 50 | .start = 0x40800000, |
| 51 | .end = 0x40800fff, |
| 52 | .flags = IORESOURCE_MEM, |
| 53 | }, |
| 54 | }; |
| 55 | |
| 56 | static struct scoop_config collie_scoop_setup = { |
| 57 | .io_dir = COLLIE_SCOOP_IO_DIR, |
| 58 | .io_out = COLLIE_SCOOP_IO_OUT, |
| 59 | }; |
| 60 | |
| 61 | struct platform_device colliescoop_device = { |
| 62 | .name = "sharp-scoop", |
| 63 | .id = -1, |
| 64 | .dev = { |
| 65 | .platform_data = &collie_scoop_setup, |
| 66 | }, |
| 67 | .num_resources = ARRAY_SIZE(collie_scoop_resources), |
| 68 | .resource = collie_scoop_resources, |
| 69 | }; |
| 70 | |
Pavel Machek | 44575b2 | 2006-03-25 03:07:34 -0800 | [diff] [blame] | 71 | static struct scoop_pcmcia_dev collie_pcmcia_scoop[] = { |
| 72 | { |
| 73 | .dev = &colliescoop_device.dev, |
| 74 | .irq = COLLIE_IRQ_GPIO_CF_IRQ, |
| 75 | .cd_irq = COLLIE_IRQ_GPIO_CF_CD, |
| 76 | .cd_irq_str = "PCMCIA0 CD", |
| 77 | }, |
| 78 | }; |
| 79 | |
| 80 | static struct scoop_pcmcia_config collie_pcmcia_config = { |
| 81 | .devs = &collie_pcmcia_scoop[0], |
| 82 | .num_devs = 1, |
| 83 | }; |
| 84 | |
| 85 | |
| 86 | static struct mcp_plat_data collie_mcp_data = { |
| 87 | .mccr0 = MCCR0_ADM, |
| 88 | .sclk_rate = 11981000, |
| 89 | }; |
| 90 | |
Pavel Machek | 50c37e2 | 2006-04-01 12:13:31 +0100 | [diff] [blame] | 91 | #ifdef CONFIG_SHARP_LOCOMO |
| 92 | /* |
| 93 | * low-level UART features. |
| 94 | */ |
| 95 | static struct locomo_dev *uart_dev = NULL; |
| 96 | |
| 97 | static void collie_uart_set_mctrl(struct uart_port *port, u_int mctrl) |
| 98 | { |
| 99 | if (!uart_dev) return; |
| 100 | |
| 101 | if (mctrl & TIOCM_RTS) |
| 102 | locomo_gpio_write(uart_dev, LOCOMO_GPIO_RTS, 0); |
| 103 | else |
| 104 | locomo_gpio_write(uart_dev, LOCOMO_GPIO_RTS, 1); |
| 105 | |
| 106 | if (mctrl & TIOCM_DTR) |
| 107 | locomo_gpio_write(uart_dev, LOCOMO_GPIO_DTR, 0); |
| 108 | else |
| 109 | locomo_gpio_write(uart_dev, LOCOMO_GPIO_DTR, 1); |
| 110 | } |
| 111 | |
| 112 | static u_int collie_uart_get_mctrl(struct uart_port *port) |
| 113 | { |
| 114 | int ret = TIOCM_CD; |
| 115 | unsigned int r; |
| 116 | if (!uart_dev) return ret; |
| 117 | |
| 118 | r = locomo_gpio_read_output(uart_dev, LOCOMO_GPIO_CTS & LOCOMO_GPIO_DSR); |
| 119 | if (r & LOCOMO_GPIO_CTS) |
| 120 | ret |= TIOCM_CTS; |
| 121 | if (r & LOCOMO_GPIO_DSR) |
| 122 | ret |= TIOCM_DSR; |
| 123 | |
| 124 | return ret; |
| 125 | } |
Pavel Machek | 44575b2 | 2006-03-25 03:07:34 -0800 | [diff] [blame] | 126 | |
| 127 | static struct sa1100_port_fns collie_port_fns __initdata = { |
| 128 | .set_mctrl = collie_uart_set_mctrl, |
| 129 | .get_mctrl = collie_uart_get_mctrl, |
| 130 | }; |
| 131 | |
Pavel Machek | 50c37e2 | 2006-04-01 12:13:31 +0100 | [diff] [blame] | 132 | static int collie_uart_probe(struct locomo_dev *dev) |
| 133 | { |
| 134 | uart_dev = dev; |
| 135 | return 0; |
| 136 | } |
| 137 | |
| 138 | static int collie_uart_remove(struct locomo_dev *dev) |
| 139 | { |
| 140 | uart_dev = NULL; |
| 141 | return 0; |
| 142 | } |
| 143 | |
| 144 | static struct locomo_driver collie_uart_driver = { |
| 145 | .drv = { |
| 146 | .name = "collie_uart", |
| 147 | }, |
| 148 | .devid = LOCOMO_DEVID_UART, |
| 149 | .probe = collie_uart_probe, |
| 150 | .remove = collie_uart_remove, |
| 151 | }; |
| 152 | |
| 153 | static int __init collie_uart_init(void) { |
| 154 | return locomo_driver_register(&collie_uart_driver); |
| 155 | } |
| 156 | device_initcall(collie_uart_init); |
| 157 | |
| 158 | #endif |
| 159 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 160 | |
| 161 | static struct resource locomo_resources[] = { |
| 162 | [0] = { |
| 163 | .start = 0x40000000, |
| 164 | .end = 0x40001fff, |
| 165 | .flags = IORESOURCE_MEM, |
| 166 | }, |
| 167 | [1] = { |
| 168 | .start = IRQ_GPIO25, |
| 169 | .end = IRQ_GPIO25, |
| 170 | .flags = IORESOURCE_IRQ, |
| 171 | }, |
| 172 | }; |
| 173 | |
| 174 | static struct platform_device locomo_device = { |
| 175 | .name = "locomo", |
| 176 | .id = 0, |
| 177 | .num_resources = ARRAY_SIZE(locomo_resources), |
| 178 | .resource = locomo_resources, |
| 179 | }; |
| 180 | |
| 181 | static struct platform_device *devices[] __initdata = { |
| 182 | &locomo_device, |
| 183 | &colliescoop_device, |
| 184 | }; |
| 185 | |
| 186 | static struct mtd_partition collie_partitions[] = { |
| 187 | { |
| 188 | .name = "bootloader", |
| 189 | .offset = 0, |
| 190 | .size = 0x000C0000, |
| 191 | .mask_flags = MTD_WRITEABLE |
| 192 | }, { |
| 193 | .name = "kernel", |
| 194 | .offset = MTDPART_OFS_APPEND, |
| 195 | .size = 0x00100000, |
| 196 | }, { |
| 197 | .name = "rootfs", |
| 198 | .offset = MTDPART_OFS_APPEND, |
| 199 | .size = 0x00e20000, |
| 200 | } |
| 201 | }; |
| 202 | |
| 203 | static void collie_set_vpp(int vpp) |
| 204 | { |
Richard Purdie | 97b8e00 | 2005-10-10 10:17:44 +0100 | [diff] [blame] | 205 | write_scoop_reg(&colliescoop_device.dev, SCOOP_GPCR, read_scoop_reg(&colliescoop_device.dev, SCOOP_GPCR) | COLLIE_SCP_VPEN); |
Richard Purdie | c071760 | 2005-09-15 14:52:00 +0100 | [diff] [blame] | 206 | if (vpp) |
Richard Purdie | 97b8e00 | 2005-10-10 10:17:44 +0100 | [diff] [blame] | 207 | write_scoop_reg(&colliescoop_device.dev, SCOOP_GPWR, read_scoop_reg(&colliescoop_device.dev, SCOOP_GPWR) | COLLIE_SCP_VPEN); |
Richard Purdie | c071760 | 2005-09-15 14:52:00 +0100 | [diff] [blame] | 208 | else |
Richard Purdie | 97b8e00 | 2005-10-10 10:17:44 +0100 | [diff] [blame] | 209 | write_scoop_reg(&colliescoop_device.dev, SCOOP_GPWR, read_scoop_reg(&colliescoop_device.dev, SCOOP_GPWR) & ~COLLIE_SCP_VPEN); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 210 | } |
| 211 | |
| 212 | static struct flash_platform_data collie_flash_data = { |
| 213 | .map_name = "cfi_probe", |
| 214 | .set_vpp = collie_set_vpp, |
| 215 | .parts = collie_partitions, |
| 216 | .nr_parts = ARRAY_SIZE(collie_partitions), |
| 217 | }; |
| 218 | |
| 219 | static struct resource collie_flash_resources[] = { |
| 220 | { |
| 221 | .start = SA1100_CS0_PHYS, |
| 222 | .end = SA1100_CS0_PHYS + SZ_32M - 1, |
| 223 | .flags = IORESOURCE_MEM, |
| 224 | } |
| 225 | }; |
| 226 | |
| 227 | static void __init collie_init(void) |
| 228 | { |
| 229 | int ret = 0; |
| 230 | |
| 231 | /* cpu initialize */ |
| 232 | GAFR = ( GPIO_SSP_TXD | \ |
| 233 | GPIO_SSP_SCLK | GPIO_SSP_SFRM | GPIO_SSP_CLK | GPIO_TIC_ACK | \ |
| 234 | GPIO_32_768kHz ); |
| 235 | |
| 236 | GPDR = ( GPIO_LDD8 | GPIO_LDD9 | GPIO_LDD10 | GPIO_LDD11 | GPIO_LDD12 | \ |
| 237 | GPIO_LDD13 | GPIO_LDD14 | GPIO_LDD15 | GPIO_SSP_TXD | \ |
| 238 | GPIO_SSP_SCLK | GPIO_SSP_SFRM | GPIO_SDLC_SCLK | \ |
| 239 | GPIO_SDLC_AAF | GPIO_UART_SCLK1 | GPIO_32_768kHz ); |
| 240 | GPLR = GPIO_GPIO18; |
| 241 | |
| 242 | // PPC pin setting |
| 243 | PPDR = ( PPC_LDD0 | PPC_LDD1 | PPC_LDD2 | PPC_LDD3 | PPC_LDD4 | PPC_LDD5 | \ |
| 244 | PPC_LDD6 | PPC_LDD7 | PPC_L_PCLK | PPC_L_LCLK | PPC_L_FCLK | PPC_L_BIAS | \ |
| 245 | PPC_TXD1 | PPC_TXD2 | PPC_RXD2 | PPC_TXD3 | PPC_TXD4 | PPC_SCLK | PPC_SFRM ); |
| 246 | |
| 247 | PSDR = ( PPC_RXD1 | PPC_RXD2 | PPC_RXD3 | PPC_RXD4 ); |
| 248 | |
| 249 | GAFR |= GPIO_32_768kHz; |
| 250 | GPDR |= GPIO_32_768kHz; |
| 251 | TUCR = TUCR_32_768kHz; |
| 252 | |
Pavel Machek | 44575b2 | 2006-03-25 03:07:34 -0800 | [diff] [blame] | 253 | platform_scoop_config = &collie_pcmcia_config; |
| 254 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 255 | ret = platform_add_devices(devices, ARRAY_SIZE(devices)); |
| 256 | if (ret) { |
| 257 | printk(KERN_WARNING "collie: Unable to register LoCoMo device\n"); |
| 258 | } |
| 259 | |
| 260 | sa11x0_set_flash_data(&collie_flash_data, collie_flash_resources, |
| 261 | ARRAY_SIZE(collie_flash_resources)); |
Pavel Machek | 44575b2 | 2006-03-25 03:07:34 -0800 | [diff] [blame] | 262 | sa11x0_set_mcp_data(&collie_mcp_data); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 263 | |
| 264 | sharpsl_save_param(); |
| 265 | } |
| 266 | |
| 267 | static struct map_desc collie_io_desc[] __initdata = { |
Deepak Saxena | 92519d8 | 2005-10-28 15:19:04 +0100 | [diff] [blame] | 268 | { /* 32M main flash (cs0) */ |
| 269 | .virtual = 0xe8000000, |
| 270 | .pfn = __phys_to_pfn(0x00000000), |
| 271 | .length = 0x02000000, |
| 272 | .type = MT_DEVICE |
| 273 | }, { /* 32M boot flash (cs1) */ |
| 274 | .virtual = 0xea000000, |
| 275 | .pfn = __phys_to_pfn(0x08000000), |
| 276 | .length = 0x02000000, |
| 277 | .type = MT_DEVICE |
| 278 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 279 | }; |
| 280 | |
| 281 | static void __init collie_map_io(void) |
| 282 | { |
| 283 | sa1100_map_io(); |
| 284 | iotable_init(collie_io_desc, ARRAY_SIZE(collie_io_desc)); |
Pavel Machek | 50c37e2 | 2006-04-01 12:13:31 +0100 | [diff] [blame] | 285 | |
| 286 | #ifdef CONFIG_SHARP_LOCOMO |
| 287 | sa1100_register_uart_fns(&collie_port_fns); |
| 288 | #endif |
| 289 | sa1100_register_uart(0, 3); |
| 290 | sa1100_register_uart(1, 1); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 291 | } |
| 292 | |
| 293 | MACHINE_START(COLLIE, "Sharp-Collie") |
Russell King | e9dea0c | 2005-07-03 17:38:58 +0100 | [diff] [blame] | 294 | .phys_io = 0x80000000, |
| 295 | .io_pg_offst = ((0xf8000000) >> 18) & 0xfffc, |
| 296 | .map_io = collie_map_io, |
| 297 | .init_irq = sa1100_init_irq, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 298 | .timer = &sa1100_timer, |
| 299 | .init_machine = collie_init, |
| 300 | MACHINE_END |