Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * linux/arch/arm/mach-sa1100/generic.c |
| 3 | * |
| 4 | * Author: Nicolas Pitre |
| 5 | * |
| 6 | * Code common to all SA11x0 machines. |
| 7 | * |
| 8 | * This program is free software; you can redistribute it and/or modify |
| 9 | * it under the terms of the GNU General Public License version 2 as |
| 10 | * published by the Free Software Foundation. |
| 11 | */ |
Russell King | 2f8163b | 2011-07-26 10:53:52 +0100 | [diff] [blame] | 12 | #include <linux/gpio.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 13 | #include <linux/module.h> |
| 14 | #include <linux/kernel.h> |
| 15 | #include <linux/init.h> |
| 16 | #include <linux/delay.h> |
Russell King | 7931d92 | 2012-01-09 21:45:51 +0000 | [diff] [blame] | 17 | #include <linux/dma-mapping.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 18 | #include <linux/pm.h> |
| 19 | #include <linux/cpufreq.h> |
| 20 | #include <linux/ioport.h> |
Russell King | d052d1b | 2005-10-29 19:07:23 +0100 | [diff] [blame] | 21 | #include <linux/platform_device.h> |
Robin Holt | 7b6d864 | 2013-07-08 16:01:40 -0700 | [diff] [blame] | 22 | #include <linux/reboot.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 23 | |
Russell King | e1b7a72 | 2012-01-14 11:50:04 +0000 | [diff] [blame] | 24 | #include <video/sa1100fb.h> |
| 25 | |
Dmitry Eremin-Solenikov | 982b465 | 2015-05-18 15:58:57 +0100 | [diff] [blame^] | 26 | #include <soc/sa1100/pwer.h> |
| 27 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 28 | #include <asm/div64.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 29 | #include <asm/mach/map.h> |
Russell King | 14e66f7 | 2005-10-29 16:08:31 +0100 | [diff] [blame] | 30 | #include <asm/mach/flash.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 31 | #include <asm/irq.h> |
David Howells | 9f97da7 | 2012-03-28 18:30:01 +0100 | [diff] [blame] | 32 | #include <asm/system_misc.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 33 | |
Rob Herring | f314f33 | 2012-02-24 00:06:51 +0100 | [diff] [blame] | 34 | #include <mach/hardware.h> |
| 35 | #include <mach/irqs.h> |
| 36 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 37 | #include "generic.h" |
Dmitry Eremin-Solenikov | 7a8ca0a | 2014-12-21 16:08:13 +0100 | [diff] [blame] | 38 | #include <clocksource/pxa.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 39 | |
Eric Miao | 04fef22 | 2008-07-29 14:26:00 +0800 | [diff] [blame] | 40 | unsigned int reset_status; |
| 41 | EXPORT_SYMBOL(reset_status); |
| 42 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 43 | #define NR_FREQS 16 |
| 44 | |
| 45 | /* |
| 46 | * This table is setup for a 3.6864MHz Crystal. |
| 47 | */ |
Viresh Kumar | 22c8b4f | 2013-09-16 18:56:32 +0530 | [diff] [blame] | 48 | struct cpufreq_frequency_table sa11x0_freq_table[NR_FREQS+1] = { |
| 49 | { .frequency = 59000, /* 59.0 MHz */}, |
| 50 | { .frequency = 73700, /* 73.7 MHz */}, |
| 51 | { .frequency = 88500, /* 88.5 MHz */}, |
| 52 | { .frequency = 103200, /* 103.2 MHz */}, |
| 53 | { .frequency = 118000, /* 118.0 MHz */}, |
| 54 | { .frequency = 132700, /* 132.7 MHz */}, |
| 55 | { .frequency = 147500, /* 147.5 MHz */}, |
| 56 | { .frequency = 162200, /* 162.2 MHz */}, |
| 57 | { .frequency = 176900, /* 176.9 MHz */}, |
| 58 | { .frequency = 191700, /* 191.7 MHz */}, |
| 59 | { .frequency = 206400, /* 206.4 MHz */}, |
| 60 | { .frequency = 221200, /* 221.2 MHz */}, |
| 61 | { .frequency = 235900, /* 235.9 MHz */}, |
| 62 | { .frequency = 250700, /* 250.7 MHz */}, |
| 63 | { .frequency = 265400, /* 265.4 MHz */}, |
| 64 | { .frequency = 280200, /* 280.2 MHz */}, |
| 65 | { .frequency = CPUFREQ_TABLE_END, }, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 66 | }; |
| 67 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 68 | unsigned int sa11x0_getspeed(unsigned int cpu) |
| 69 | { |
| 70 | if (cpu) |
| 71 | return 0; |
Viresh Kumar | 22c8b4f | 2013-09-16 18:56:32 +0530 | [diff] [blame] | 72 | return sa11x0_freq_table[PPCR & 0xf].frequency; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 73 | } |
| 74 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 75 | /* |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 76 | * Default power-off for SA1100 |
| 77 | */ |
| 78 | static void sa1100_power_off(void) |
| 79 | { |
| 80 | mdelay(100); |
| 81 | local_irq_disable(); |
| 82 | /* disable internal oscillator, float CS lines */ |
| 83 | PCFR = (PCFR_OPDE | PCFR_FP | PCFR_FS); |
| 84 | /* enable wake-up on GPIO0 (Assabet...) */ |
| 85 | PWER = GFER = GRER = 1; |
| 86 | /* |
| 87 | * set scratchpad to zero, just in case it is used as a |
| 88 | * restart address by the bootloader. |
| 89 | */ |
| 90 | PSPR = 0; |
| 91 | /* enter sleep mode */ |
| 92 | PMCR = PMCR_SF; |
| 93 | } |
| 94 | |
Robin Holt | 7b6d864 | 2013-07-08 16:01:40 -0700 | [diff] [blame] | 95 | void sa11x0_restart(enum reboot_mode mode, const char *cmd) |
Russell King | d9ca583 | 2011-11-05 10:28:50 +0000 | [diff] [blame] | 96 | { |
Robin Holt | 7b6d864 | 2013-07-08 16:01:40 -0700 | [diff] [blame] | 97 | if (mode == REBOOT_SOFT) { |
Russell King | d9ca583 | 2011-11-05 10:28:50 +0000 | [diff] [blame] | 98 | /* Jump into ROM at address 0 */ |
| 99 | soft_restart(0); |
| 100 | } else { |
| 101 | /* Use on-chip reset capability */ |
| 102 | RSRR = RSRR_SWR; |
| 103 | } |
| 104 | } |
| 105 | |
Russell King | 7a5b4e1 | 2009-10-06 14:55:53 +0100 | [diff] [blame] | 106 | static void sa11x0_register_device(struct platform_device *dev, void *data) |
| 107 | { |
| 108 | int err; |
| 109 | dev->dev.platform_data = data; |
| 110 | err = platform_device_register(dev); |
| 111 | if (err) |
| 112 | printk(KERN_ERR "Unable to register device %s: %d\n", |
| 113 | dev->name, err); |
| 114 | } |
| 115 | |
| 116 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 117 | static struct resource sa11x0udc_resources[] = { |
Russell King | a181099 | 2012-01-12 10:25:29 +0000 | [diff] [blame] | 118 | [0] = DEFINE_RES_MEM(__PREG(Ser0UDCCR), SZ_64K), |
| 119 | [1] = DEFINE_RES_IRQ(IRQ_Ser0UDC), |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 120 | }; |
| 121 | |
| 122 | static u64 sa11x0udc_dma_mask = 0xffffffffUL; |
| 123 | |
| 124 | static struct platform_device sa11x0udc_device = { |
| 125 | .name = "sa11x0-udc", |
| 126 | .id = -1, |
| 127 | .dev = { |
| 128 | .dma_mask = &sa11x0udc_dma_mask, |
| 129 | .coherent_dma_mask = 0xffffffff, |
| 130 | }, |
| 131 | .num_resources = ARRAY_SIZE(sa11x0udc_resources), |
| 132 | .resource = sa11x0udc_resources, |
| 133 | }; |
| 134 | |
| 135 | static struct resource sa11x0uart1_resources[] = { |
Russell King | a181099 | 2012-01-12 10:25:29 +0000 | [diff] [blame] | 136 | [0] = DEFINE_RES_MEM(__PREG(Ser1UTCR0), SZ_64K), |
| 137 | [1] = DEFINE_RES_IRQ(IRQ_Ser1UART), |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 138 | }; |
| 139 | |
| 140 | static struct platform_device sa11x0uart1_device = { |
| 141 | .name = "sa11x0-uart", |
| 142 | .id = 1, |
| 143 | .num_resources = ARRAY_SIZE(sa11x0uart1_resources), |
| 144 | .resource = sa11x0uart1_resources, |
| 145 | }; |
| 146 | |
| 147 | static struct resource sa11x0uart3_resources[] = { |
Russell King | a181099 | 2012-01-12 10:25:29 +0000 | [diff] [blame] | 148 | [0] = DEFINE_RES_MEM(__PREG(Ser3UTCR0), SZ_64K), |
| 149 | [1] = DEFINE_RES_IRQ(IRQ_Ser3UART), |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 150 | }; |
| 151 | |
| 152 | static struct platform_device sa11x0uart3_device = { |
| 153 | .name = "sa11x0-uart", |
| 154 | .id = 3, |
| 155 | .num_resources = ARRAY_SIZE(sa11x0uart3_resources), |
| 156 | .resource = sa11x0uart3_resources, |
| 157 | }; |
| 158 | |
| 159 | static struct resource sa11x0mcp_resources[] = { |
Russell King | a181099 | 2012-01-12 10:25:29 +0000 | [diff] [blame] | 160 | [0] = DEFINE_RES_MEM(__PREG(Ser4MCCR0), SZ_64K), |
Russell King | 7256ecc | 2012-03-25 23:56:30 +0100 | [diff] [blame] | 161 | [1] = DEFINE_RES_MEM(__PREG(Ser4MCCR1), 4), |
| 162 | [2] = DEFINE_RES_IRQ(IRQ_Ser4MCP), |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 163 | }; |
| 164 | |
| 165 | static u64 sa11x0mcp_dma_mask = 0xffffffffUL; |
| 166 | |
| 167 | static struct platform_device sa11x0mcp_device = { |
| 168 | .name = "sa11x0-mcp", |
| 169 | .id = -1, |
| 170 | .dev = { |
| 171 | .dma_mask = &sa11x0mcp_dma_mask, |
| 172 | .coherent_dma_mask = 0xffffffff, |
| 173 | }, |
| 174 | .num_resources = ARRAY_SIZE(sa11x0mcp_resources), |
| 175 | .resource = sa11x0mcp_resources, |
| 176 | }; |
| 177 | |
Russell King | e36e26a | 2012-01-20 22:24:07 +0000 | [diff] [blame] | 178 | void __init sa11x0_ppc_configure_mcp(void) |
| 179 | { |
| 180 | /* Setup the PPC unit for the MCP */ |
| 181 | PPDR &= ~PPC_RXD4; |
| 182 | PPDR |= PPC_TXD4 | PPC_SCLK | PPC_SFRM; |
| 183 | PSDR |= PPC_RXD4; |
| 184 | PSDR &= ~(PPC_TXD4 | PPC_SCLK | PPC_SFRM); |
| 185 | PPSR &= ~(PPC_TXD4 | PPC_SCLK | PPC_SFRM); |
| 186 | } |
| 187 | |
Russell King | 7a5b4e1 | 2009-10-06 14:55:53 +0100 | [diff] [blame] | 188 | void sa11x0_register_mcp(struct mcp_plat_data *data) |
Russell King | 323cdfc | 2005-08-18 10:10:46 +0100 | [diff] [blame] | 189 | { |
Russell King | 7a5b4e1 | 2009-10-06 14:55:53 +0100 | [diff] [blame] | 190 | sa11x0_register_device(&sa11x0mcp_device, data); |
Russell King | 323cdfc | 2005-08-18 10:10:46 +0100 | [diff] [blame] | 191 | } |
| 192 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 193 | static struct resource sa11x0ssp_resources[] = { |
Russell King | a181099 | 2012-01-12 10:25:29 +0000 | [diff] [blame] | 194 | [0] = DEFINE_RES_MEM(0x80070000, SZ_64K), |
| 195 | [1] = DEFINE_RES_IRQ(IRQ_Ser4SSP), |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 196 | }; |
| 197 | |
| 198 | static u64 sa11x0ssp_dma_mask = 0xffffffffUL; |
| 199 | |
| 200 | static struct platform_device sa11x0ssp_device = { |
| 201 | .name = "sa11x0-ssp", |
| 202 | .id = -1, |
| 203 | .dev = { |
| 204 | .dma_mask = &sa11x0ssp_dma_mask, |
| 205 | .coherent_dma_mask = 0xffffffff, |
| 206 | }, |
| 207 | .num_resources = ARRAY_SIZE(sa11x0ssp_resources), |
| 208 | .resource = sa11x0ssp_resources, |
| 209 | }; |
| 210 | |
| 211 | static struct resource sa11x0fb_resources[] = { |
Russell King | a181099 | 2012-01-12 10:25:29 +0000 | [diff] [blame] | 212 | [0] = DEFINE_RES_MEM(0xb0100000, SZ_64K), |
| 213 | [1] = DEFINE_RES_IRQ(IRQ_LCD), |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 214 | }; |
| 215 | |
| 216 | static struct platform_device sa11x0fb_device = { |
| 217 | .name = "sa11x0-fb", |
| 218 | .id = -1, |
| 219 | .dev = { |
| 220 | .coherent_dma_mask = 0xffffffff, |
| 221 | }, |
| 222 | .num_resources = ARRAY_SIZE(sa11x0fb_resources), |
| 223 | .resource = sa11x0fb_resources, |
| 224 | }; |
| 225 | |
Russell King | e1b7a72 | 2012-01-14 11:50:04 +0000 | [diff] [blame] | 226 | void sa11x0_register_lcd(struct sa1100fb_mach_info *inf) |
| 227 | { |
| 228 | sa11x0_register_device(&sa11x0fb_device, inf); |
| 229 | } |
| 230 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 231 | static struct platform_device sa11x0pcmcia_device = { |
| 232 | .name = "sa11x0-pcmcia", |
| 233 | .id = -1, |
| 234 | }; |
| 235 | |
| 236 | static struct platform_device sa11x0mtd_device = { |
Uwe Kleine-König | bcc8f3e | 2009-01-31 01:21:58 +0100 | [diff] [blame] | 237 | .name = "sa1100-mtd", |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 238 | .id = -1, |
| 239 | }; |
| 240 | |
Russell King | 7a5b4e1 | 2009-10-06 14:55:53 +0100 | [diff] [blame] | 241 | void sa11x0_register_mtd(struct flash_platform_data *flash, |
| 242 | struct resource *res, int nr) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 243 | { |
Russell King | 14e66f7 | 2005-10-29 16:08:31 +0100 | [diff] [blame] | 244 | flash->name = "sa1100"; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 245 | sa11x0mtd_device.resource = res; |
| 246 | sa11x0mtd_device.num_resources = nr; |
Russell King | 7a5b4e1 | 2009-10-06 14:55:53 +0100 | [diff] [blame] | 247 | sa11x0_register_device(&sa11x0mtd_device, flash); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 248 | } |
| 249 | |
| 250 | static struct resource sa11x0ir_resources[] = { |
Russell King | a181099 | 2012-01-12 10:25:29 +0000 | [diff] [blame] | 251 | DEFINE_RES_MEM(__PREG(Ser2UTCR0), 0x24), |
| 252 | DEFINE_RES_MEM(__PREG(Ser2HSCR0), 0x1c), |
| 253 | DEFINE_RES_MEM(__PREG(Ser2HSCR2), 0x04), |
| 254 | DEFINE_RES_IRQ(IRQ_Ser2ICP), |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 255 | }; |
| 256 | |
| 257 | static struct platform_device sa11x0ir_device = { |
| 258 | .name = "sa11x0-ir", |
| 259 | .id = -1, |
| 260 | .num_resources = ARRAY_SIZE(sa11x0ir_resources), |
| 261 | .resource = sa11x0ir_resources, |
| 262 | }; |
| 263 | |
Russell King | 7a5b4e1 | 2009-10-06 14:55:53 +0100 | [diff] [blame] | 264 | void sa11x0_register_irda(struct irda_platform_data *irda) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 265 | { |
Russell King | 7a5b4e1 | 2009-10-06 14:55:53 +0100 | [diff] [blame] | 266 | sa11x0_register_device(&sa11x0ir_device, irda); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 267 | } |
| 268 | |
Haojian Zhuang | 3888c09 | 2012-02-21 11:51:13 +0800 | [diff] [blame] | 269 | static struct resource sa1100_rtc_resources[] = { |
Dmitry Artamonow | 9f9d27e | 2012-04-14 10:26:19 +0400 | [diff] [blame] | 270 | DEFINE_RES_MEM(0x90010000, 0x40), |
Haojian Zhuang | 3888c09 | 2012-02-21 11:51:13 +0800 | [diff] [blame] | 271 | DEFINE_RES_IRQ_NAMED(IRQ_RTC1Hz, "rtc 1Hz"), |
| 272 | DEFINE_RES_IRQ_NAMED(IRQ_RTCAlrm, "rtc alarm"), |
| 273 | }; |
| 274 | |
Richard Purdie | e842f1c | 2006-03-27 01:16:46 -0800 | [diff] [blame] | 275 | static struct platform_device sa11x0rtc_device = { |
| 276 | .name = "sa1100-rtc", |
| 277 | .id = -1, |
Haojian Zhuang | 3888c09 | 2012-02-21 11:51:13 +0800 | [diff] [blame] | 278 | .num_resources = ARRAY_SIZE(sa1100_rtc_resources), |
| 279 | .resource = sa1100_rtc_resources, |
Richard Purdie | e842f1c | 2006-03-27 01:16:46 -0800 | [diff] [blame] | 280 | }; |
| 281 | |
Russell King | 7931d92 | 2012-01-09 21:45:51 +0000 | [diff] [blame] | 282 | static struct resource sa11x0dma_resources[] = { |
Russell King | c213201 | 2012-01-14 16:57:02 +0000 | [diff] [blame] | 283 | DEFINE_RES_MEM(DMA_PHYS, DMA_SIZE), |
Russell King | 7931d92 | 2012-01-09 21:45:51 +0000 | [diff] [blame] | 284 | DEFINE_RES_IRQ(IRQ_DMA0), |
| 285 | DEFINE_RES_IRQ(IRQ_DMA1), |
| 286 | DEFINE_RES_IRQ(IRQ_DMA2), |
| 287 | DEFINE_RES_IRQ(IRQ_DMA3), |
| 288 | DEFINE_RES_IRQ(IRQ_DMA4), |
| 289 | DEFINE_RES_IRQ(IRQ_DMA5), |
| 290 | }; |
| 291 | |
| 292 | static u64 sa11x0dma_dma_mask = DMA_BIT_MASK(32); |
| 293 | |
| 294 | static struct platform_device sa11x0dma_device = { |
| 295 | .name = "sa11x0-dma", |
| 296 | .id = -1, |
| 297 | .dev = { |
| 298 | .dma_mask = &sa11x0dma_dma_mask, |
| 299 | .coherent_dma_mask = 0xffffffff, |
| 300 | }, |
| 301 | .num_resources = ARRAY_SIZE(sa11x0dma_resources), |
| 302 | .resource = sa11x0dma_resources, |
| 303 | }; |
| 304 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 305 | static struct platform_device *sa11x0_devices[] __initdata = { |
| 306 | &sa11x0udc_device, |
| 307 | &sa11x0uart1_device, |
| 308 | &sa11x0uart3_device, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 309 | &sa11x0ssp_device, |
| 310 | &sa11x0pcmcia_device, |
Richard Purdie | e842f1c | 2006-03-27 01:16:46 -0800 | [diff] [blame] | 311 | &sa11x0rtc_device, |
Russell King | 7931d92 | 2012-01-09 21:45:51 +0000 | [diff] [blame] | 312 | &sa11x0dma_device, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 313 | }; |
| 314 | |
| 315 | static int __init sa1100_init(void) |
| 316 | { |
| 317 | pm_power_off = sa1100_power_off; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 318 | return platform_add_devices(sa11x0_devices, ARRAY_SIZE(sa11x0_devices)); |
| 319 | } |
| 320 | |
| 321 | arch_initcall(sa1100_init); |
| 322 | |
Shawn Guo | 7fea1ba | 2012-04-26 21:22:45 +0800 | [diff] [blame] | 323 | void __init sa11x0_init_late(void) |
| 324 | { |
| 325 | sa11x0_pm_init(); |
| 326 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 327 | |
| 328 | /* |
| 329 | * Common I/O mapping: |
| 330 | * |
| 331 | * Typically, static virtual address mappings are as follow: |
| 332 | * |
| 333 | * 0xf0000000-0xf3ffffff: miscellaneous stuff (CPLDs, etc.) |
| 334 | * 0xf4000000-0xf4ffffff: SA-1111 |
| 335 | * 0xf5000000-0xf5ffffff: reserved (used by cache flushing area) |
| 336 | * 0xf6000000-0xfffeffff: reserved (internal SA1100 IO defined above) |
| 337 | * 0xffff0000-0xffff0fff: SA1100 exception vectors |
| 338 | * 0xffff2000-0xffff2fff: Minicache copy_user_page area |
| 339 | * |
| 340 | * Below 0xe8000000 is reserved for vm allocation. |
| 341 | * |
| 342 | * The machine specific code must provide the extra mapping beside the |
| 343 | * default mapping provided here. |
| 344 | */ |
| 345 | |
| 346 | static struct map_desc standard_io_desc[] __initdata = { |
Kristoffer Ericson | bda0308 | 2008-09-29 17:09:10 +0100 | [diff] [blame] | 347 | { /* PCM */ |
Deepak Saxena | 92519d8 | 2005-10-28 15:19:04 +0100 | [diff] [blame] | 348 | .virtual = 0xf8000000, |
| 349 | .pfn = __phys_to_pfn(0x80000000), |
| 350 | .length = 0x00100000, |
| 351 | .type = MT_DEVICE |
| 352 | }, { /* SCM */ |
| 353 | .virtual = 0xfa000000, |
| 354 | .pfn = __phys_to_pfn(0x90000000), |
| 355 | .length = 0x00100000, |
| 356 | .type = MT_DEVICE |
| 357 | }, { /* MER */ |
| 358 | .virtual = 0xfc000000, |
| 359 | .pfn = __phys_to_pfn(0xa0000000), |
| 360 | .length = 0x00100000, |
| 361 | .type = MT_DEVICE |
| 362 | }, { /* LCD + DMA */ |
| 363 | .virtual = 0xfe000000, |
| 364 | .pfn = __phys_to_pfn(0xb0000000), |
| 365 | .length = 0x00200000, |
| 366 | .type = MT_DEVICE |
| 367 | }, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 368 | }; |
| 369 | |
| 370 | void __init sa1100_map_io(void) |
| 371 | { |
| 372 | iotable_init(standard_io_desc, ARRAY_SIZE(standard_io_desc)); |
| 373 | } |
| 374 | |
Dmitry Eremin-Solenikov | 7a8ca0a | 2014-12-21 16:08:13 +0100 | [diff] [blame] | 375 | void __init sa1100_timer_init(void) |
| 376 | { |
| 377 | pxa_timer_nodt_init(IRQ_OST0, io_p2v(0x90000000), 3686400); |
| 378 | } |
| 379 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 380 | /* |
| 381 | * Disable the memory bus request/grant signals on the SA1110 to |
| 382 | * ensure that we don't receive spurious memory requests. We set |
| 383 | * the MBGNT signal false to ensure the SA1111 doesn't own the |
| 384 | * SDRAM bus. |
| 385 | */ |
Russell King | 80ea206 | 2012-02-03 18:16:45 +0000 | [diff] [blame] | 386 | void sa1110_mb_disable(void) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 387 | { |
| 388 | unsigned long flags; |
| 389 | |
| 390 | local_irq_save(flags); |
| 391 | |
| 392 | PGSR &= ~GPIO_MBGNT; |
| 393 | GPCR = GPIO_MBGNT; |
| 394 | GPDR = (GPDR & ~GPIO_MBREQ) | GPIO_MBGNT; |
| 395 | |
| 396 | GAFR &= ~(GPIO_MBGNT | GPIO_MBREQ); |
| 397 | |
| 398 | local_irq_restore(flags); |
| 399 | } |
| 400 | |
| 401 | /* |
| 402 | * If the system is going to use the SA-1111 DMA engines, set up |
| 403 | * the memory bus request/grant pins. |
| 404 | */ |
Russell King | 80ea206 | 2012-02-03 18:16:45 +0000 | [diff] [blame] | 405 | void sa1110_mb_enable(void) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 406 | { |
| 407 | unsigned long flags; |
| 408 | |
| 409 | local_irq_save(flags); |
| 410 | |
| 411 | PGSR &= ~GPIO_MBGNT; |
| 412 | GPCR = GPIO_MBGNT; |
| 413 | GPDR = (GPDR & ~GPIO_MBREQ) | GPIO_MBGNT; |
| 414 | |
| 415 | GAFR |= (GPIO_MBGNT | GPIO_MBREQ); |
| 416 | TUCR |= TUCR_MR; |
| 417 | |
| 418 | local_irq_restore(flags); |
| 419 | } |
| 420 | |
Dmitry Eremin-Solenikov | 982b465 | 2015-05-18 15:58:57 +0100 | [diff] [blame^] | 421 | int sa11x0_gpio_set_wake(unsigned int gpio, unsigned int on) |
| 422 | { |
| 423 | if (on) |
| 424 | PWER |= BIT(gpio); |
| 425 | else |
| 426 | PWER &= ~BIT(gpio); |
| 427 | |
| 428 | return 0; |
| 429 | } |
| 430 | |
| 431 | int sa11x0_sc_set_wake(unsigned int irq, unsigned int on) |
| 432 | { |
| 433 | if (BIT(irq) != IC_RTCAlrm) |
| 434 | return -EINVAL; |
| 435 | |
| 436 | if (on) |
| 437 | PWER |= PWER_RTC; |
| 438 | else |
| 439 | PWER &= ~PWER_RTC; |
| 440 | |
| 441 | return 0; |
| 442 | } |