Atsushi Nemoto | 89d63fe | 2008-07-11 00:33:08 +0900 | [diff] [blame] | 1 | /* |
Atsushi Nemoto | 89d63fe | 2008-07-11 00:33:08 +0900 | [diff] [blame] | 2 | * Based on linux/arch/mips/txx9/rbtx4938/setup.c, |
| 3 | * and RBTX49xx patch from CELF patch archive. |
| 4 | * |
| 5 | * 2003-2005 (c) MontaVista Software, Inc. |
| 6 | * (C) Copyright TOSHIBA CORPORATION 2000-2001, 2004-2007 |
| 7 | * |
| 8 | * This file is subject to the terms and conditions of the GNU General Public |
| 9 | * License. See the file "COPYING" in the main directory of this archive |
| 10 | * for more details. |
| 11 | */ |
| 12 | #include <linux/init.h> |
| 13 | #include <linux/kernel.h> |
| 14 | #include <linux/types.h> |
Atsushi Nemoto | edcaf1a | 2008-07-11 23:27:54 +0900 | [diff] [blame] | 15 | #include <linux/interrupt.h> |
| 16 | #include <linux/string.h> |
| 17 | #include <linux/module.h> |
Geert Uytterhoeven | 44ce9a9 | 2016-09-11 10:59:58 +0200 | [diff] [blame] | 18 | #include <linux/clk-provider.h> |
| 19 | #include <linux/clkdev.h> |
Atsushi Nemoto | edcaf1a | 2008-07-11 23:27:54 +0900 | [diff] [blame] | 20 | #include <linux/err.h> |
Linus Walleij | be7658f | 2015-12-08 14:40:40 +0100 | [diff] [blame] | 21 | #include <linux/gpio/driver.h> |
Atsushi Nemoto | 6831472 | 2008-07-24 00:25:18 +0900 | [diff] [blame] | 22 | #include <linux/platform_device.h> |
Atsushi Nemoto | 7779a5e | 2008-07-25 23:08:06 +0900 | [diff] [blame] | 23 | #include <linux/serial_core.h> |
Atsushi Nemoto | 51f607c | 2008-08-19 22:55:11 +0900 | [diff] [blame] | 24 | #include <linux/mtd/physmap.h> |
Atsushi Nemoto | ae027ea | 2008-09-01 22:22:38 +0900 | [diff] [blame] | 25 | #include <linux/leds.h> |
Kay Sievers | 269a3eb | 2011-12-21 15:09:54 -0800 | [diff] [blame] | 26 | #include <linux/device.h> |
Tejun Heo | 5a0e3ad | 2010-03-24 17:04:11 +0900 | [diff] [blame] | 27 | #include <linux/slab.h> |
David Howells | ca4d3e67 | 2010-10-07 14:08:54 +0100 | [diff] [blame] | 28 | #include <linux/irq.h> |
Atsushi Nemoto | edcaf1a | 2008-07-11 23:27:54 +0900 | [diff] [blame] | 29 | #include <asm/bootinfo.h> |
Ralf Baechle | bdc92d74 | 2013-05-21 16:59:19 +0200 | [diff] [blame] | 30 | #include <asm/idle.h> |
Atsushi Nemoto | e0eb730 | 2008-07-19 01:51:52 +0900 | [diff] [blame] | 31 | #include <asm/time.h> |
Atsushi Nemoto | a49297e | 2008-07-24 00:25:17 +0900 | [diff] [blame] | 32 | #include <asm/reboot.h> |
Atsushi Nemoto | d10e025 | 2008-08-19 22:55:09 +0900 | [diff] [blame] | 33 | #include <asm/r4kcache.h> |
Atsushi Nemoto | b6263ff | 2008-09-01 22:22:41 +0900 | [diff] [blame] | 34 | #include <asm/sections.h> |
Atsushi Nemoto | 89d63fe | 2008-07-11 00:33:08 +0900 | [diff] [blame] | 35 | #include <asm/txx9/generic.h> |
Atsushi Nemoto | 0751752 | 2008-07-24 00:25:15 +0900 | [diff] [blame] | 36 | #include <asm/txx9/pci.h> |
Atsushi Nemoto | 496a3b5 | 2008-08-19 22:55:15 +0900 | [diff] [blame] | 37 | #include <asm/txx9tmr.h> |
Atsushi Nemoto | a591f5d | 2009-03-04 12:01:31 -0800 | [diff] [blame] | 38 | #include <asm/txx9/ndfmc.h> |
Atsushi Nemoto | f48c8c9 | 2009-04-23 00:40:31 +0900 | [diff] [blame] | 39 | #include <asm/txx9/dmac.h> |
Atsushi Nemoto | edcaf1a | 2008-07-11 23:27:54 +0900 | [diff] [blame] | 40 | #ifdef CONFIG_CPU_TX49XX |
| 41 | #include <asm/txx9/tx4938.h> |
| 42 | #endif |
Atsushi Nemoto | 89d63fe | 2008-07-11 00:33:08 +0900 | [diff] [blame] | 43 | |
| 44 | /* EBUSC settings of TX4927, etc. */ |
| 45 | struct resource txx9_ce_res[8]; |
| 46 | static char txx9_ce_res_name[8][4]; /* "CEn" */ |
| 47 | |
| 48 | /* pcode, internal register */ |
Atsushi Nemoto | 94a4c32 | 2008-07-19 01:51:47 +0900 | [diff] [blame] | 49 | unsigned int txx9_pcode; |
Atsushi Nemoto | 89d63fe | 2008-07-11 00:33:08 +0900 | [diff] [blame] | 50 | char txx9_pcode_str[8]; |
| 51 | static struct resource txx9_reg_res = { |
| 52 | .name = txx9_pcode_str, |
| 53 | .flags = IORESOURCE_MEM, |
| 54 | }; |
| 55 | void __init |
| 56 | txx9_reg_res_init(unsigned int pcode, unsigned long base, unsigned long size) |
| 57 | { |
| 58 | int i; |
| 59 | |
| 60 | for (i = 0; i < ARRAY_SIZE(txx9_ce_res); i++) { |
| 61 | sprintf(txx9_ce_res_name[i], "CE%d", i); |
| 62 | txx9_ce_res[i].flags = IORESOURCE_MEM; |
| 63 | txx9_ce_res[i].name = txx9_ce_res_name[i]; |
| 64 | } |
| 65 | |
Atsushi Nemoto | 073828d | 2008-08-26 21:29:58 +0900 | [diff] [blame] | 66 | txx9_pcode = pcode; |
Atsushi Nemoto | 89d63fe | 2008-07-11 00:33:08 +0900 | [diff] [blame] | 67 | sprintf(txx9_pcode_str, "TX%x", pcode); |
| 68 | if (base) { |
| 69 | txx9_reg_res.start = base & 0xfffffffffULL; |
| 70 | txx9_reg_res.end = (base & 0xfffffffffULL) + (size - 1); |
| 71 | request_resource(&iomem_resource, &txx9_reg_res); |
| 72 | } |
| 73 | } |
| 74 | |
| 75 | /* clocks */ |
| 76 | unsigned int txx9_master_clock; |
| 77 | unsigned int txx9_cpu_clock; |
| 78 | unsigned int txx9_gbus_clock; |
Atsushi Nemoto | edcaf1a | 2008-07-11 23:27:54 +0900 | [diff] [blame] | 79 | |
Atsushi Nemoto | c7b95bc | 2008-08-19 22:55:10 +0900 | [diff] [blame] | 80 | #ifdef CONFIG_CPU_TX39XX |
| 81 | /* don't enable by default - see errata */ |
| 82 | int txx9_ccfg_toeon __initdata; |
| 83 | #else |
Atsushi Nemoto | 94a4c32 | 2008-07-19 01:51:47 +0900 | [diff] [blame] | 84 | int txx9_ccfg_toeon __initdata = 1; |
Atsushi Nemoto | c7b95bc | 2008-08-19 22:55:10 +0900 | [diff] [blame] | 85 | #endif |
Atsushi Nemoto | edcaf1a | 2008-07-11 23:27:54 +0900 | [diff] [blame] | 86 | |
Atsushi Nemoto | 860e546 | 2008-08-19 22:55:08 +0900 | [diff] [blame] | 87 | #define BOARD_VEC(board) extern struct txx9_board_vec board; |
| 88 | #include <asm/txx9/boards.h> |
| 89 | #undef BOARD_VEC |
Atsushi Nemoto | edcaf1a | 2008-07-11 23:27:54 +0900 | [diff] [blame] | 90 | |
Atsushi Nemoto | edcaf1a | 2008-07-11 23:27:54 +0900 | [diff] [blame] | 91 | struct txx9_board_vec *txx9_board_vec __initdata; |
| 92 | static char txx9_system_type[32]; |
| 93 | |
Atsushi Nemoto | 860e546 | 2008-08-19 22:55:08 +0900 | [diff] [blame] | 94 | static struct txx9_board_vec *board_vecs[] __initdata = { |
| 95 | #define BOARD_VEC(board) &board, |
| 96 | #include <asm/txx9/boards.h> |
| 97 | #undef BOARD_VEC |
| 98 | }; |
| 99 | |
| 100 | static struct txx9_board_vec *__init find_board_byname(const char *name) |
| 101 | { |
| 102 | int i; |
| 103 | |
| 104 | /* search board_vecs table */ |
| 105 | for (i = 0; i < ARRAY_SIZE(board_vecs); i++) { |
| 106 | if (strstr(board_vecs[i]->system, name)) |
| 107 | return board_vecs[i]; |
| 108 | } |
| 109 | return NULL; |
| 110 | } |
| 111 | |
Atsushi Nemoto | e0dfb20 | 2008-08-19 22:55:06 +0900 | [diff] [blame] | 112 | static void __init prom_init_cmdline(void) |
Atsushi Nemoto | edcaf1a | 2008-07-11 23:27:54 +0900 | [diff] [blame] | 113 | { |
Geert Uytterhoeven | 97b0511 | 2008-10-27 15:25:49 +0100 | [diff] [blame] | 114 | int argc; |
| 115 | int *argv32; |
Atsushi Nemoto | edcaf1a | 2008-07-11 23:27:54 +0900 | [diff] [blame] | 116 | int i; /* Always ignore the "-c" at argv[0] */ |
| 117 | |
Geert Uytterhoeven | 97b0511 | 2008-10-27 15:25:49 +0100 | [diff] [blame] | 118 | if (fw_arg0 >= CKSEG0 || fw_arg1 < CKSEG0) { |
| 119 | /* |
| 120 | * argc is not a valid number, or argv32 is not a valid |
| 121 | * pointer |
| 122 | */ |
| 123 | argc = 0; |
| 124 | argv32 = NULL; |
| 125 | } else { |
| 126 | argc = (int)fw_arg0; |
| 127 | argv32 = (int *)fw_arg1; |
| 128 | } |
| 129 | |
Atsushi Nemoto | e0dfb20 | 2008-08-19 22:55:06 +0900 | [diff] [blame] | 130 | arcs_cmdline[0] = '\0'; |
Atsushi Nemoto | edcaf1a | 2008-07-11 23:27:54 +0900 | [diff] [blame] | 131 | |
| 132 | for (i = 1; i < argc; i++) { |
Atsushi Nemoto | e0dfb20 | 2008-08-19 22:55:06 +0900 | [diff] [blame] | 133 | char *str = (char *)(long)argv32[i]; |
Atsushi Nemoto | edcaf1a | 2008-07-11 23:27:54 +0900 | [diff] [blame] | 134 | if (i != 1) |
| 135 | strcat(arcs_cmdline, " "); |
Atsushi Nemoto | e0dfb20 | 2008-08-19 22:55:06 +0900 | [diff] [blame] | 136 | if (strchr(str, ' ')) { |
| 137 | strcat(arcs_cmdline, "\""); |
| 138 | strcat(arcs_cmdline, str); |
| 139 | strcat(arcs_cmdline, "\""); |
| 140 | } else |
| 141 | strcat(arcs_cmdline, str); |
| 142 | } |
Atsushi Nemoto | edcaf1a | 2008-07-11 23:27:54 +0900 | [diff] [blame] | 143 | } |
| 144 | |
Atsushi Nemoto | d10e025 | 2008-08-19 22:55:09 +0900 | [diff] [blame] | 145 | static int txx9_ic_disable __initdata; |
| 146 | static int txx9_dc_disable __initdata; |
| 147 | |
| 148 | #if defined(CONFIG_CPU_TX49XX) |
| 149 | /* flush all cache on very early stage (before 4k_cache_init) */ |
| 150 | static void __init early_flush_dcache(void) |
| 151 | { |
| 152 | unsigned int conf = read_c0_config(); |
| 153 | unsigned int dc_size = 1 << (12 + ((conf & CONF_DC) >> 6)); |
| 154 | unsigned int linesz = 32; |
| 155 | unsigned long addr, end; |
| 156 | |
| 157 | end = INDEX_BASE + dc_size / 4; |
| 158 | /* 4way, waybit=0 */ |
| 159 | for (addr = INDEX_BASE; addr < end; addr += linesz) { |
| 160 | cache_op(Index_Writeback_Inv_D, addr | 0); |
| 161 | cache_op(Index_Writeback_Inv_D, addr | 1); |
| 162 | cache_op(Index_Writeback_Inv_D, addr | 2); |
| 163 | cache_op(Index_Writeback_Inv_D, addr | 3); |
| 164 | } |
| 165 | } |
| 166 | |
| 167 | static void __init txx9_cache_fixup(void) |
| 168 | { |
| 169 | unsigned int conf; |
| 170 | |
| 171 | conf = read_c0_config(); |
| 172 | /* flush and disable */ |
| 173 | if (txx9_ic_disable) { |
| 174 | conf |= TX49_CONF_IC; |
| 175 | write_c0_config(conf); |
| 176 | } |
| 177 | if (txx9_dc_disable) { |
| 178 | early_flush_dcache(); |
| 179 | conf |= TX49_CONF_DC; |
| 180 | write_c0_config(conf); |
| 181 | } |
| 182 | |
| 183 | /* enable cache */ |
| 184 | conf = read_c0_config(); |
| 185 | if (!txx9_ic_disable) |
| 186 | conf &= ~TX49_CONF_IC; |
| 187 | if (!txx9_dc_disable) |
| 188 | conf &= ~TX49_CONF_DC; |
| 189 | write_c0_config(conf); |
| 190 | |
| 191 | if (conf & TX49_CONF_IC) |
| 192 | pr_info("TX49XX I-Cache disabled.\n"); |
| 193 | if (conf & TX49_CONF_DC) |
| 194 | pr_info("TX49XX D-Cache disabled.\n"); |
| 195 | } |
| 196 | #elif defined(CONFIG_CPU_TX39XX) |
| 197 | /* flush all cache on very early stage (before tx39_cache_init) */ |
| 198 | static void __init early_flush_dcache(void) |
| 199 | { |
| 200 | unsigned int conf = read_c0_config(); |
| 201 | unsigned int dc_size = 1 << (10 + ((conf & TX39_CONF_DCS_MASK) >> |
| 202 | TX39_CONF_DCS_SHIFT)); |
| 203 | unsigned int linesz = 16; |
| 204 | unsigned long addr, end; |
| 205 | |
| 206 | end = INDEX_BASE + dc_size / 2; |
| 207 | /* 2way, waybit=0 */ |
| 208 | for (addr = INDEX_BASE; addr < end; addr += linesz) { |
| 209 | cache_op(Index_Writeback_Inv_D, addr | 0); |
| 210 | cache_op(Index_Writeback_Inv_D, addr | 1); |
| 211 | } |
| 212 | } |
| 213 | |
| 214 | static void __init txx9_cache_fixup(void) |
| 215 | { |
| 216 | unsigned int conf; |
| 217 | |
| 218 | conf = read_c0_config(); |
| 219 | /* flush and disable */ |
| 220 | if (txx9_ic_disable) { |
| 221 | conf &= ~TX39_CONF_ICE; |
| 222 | write_c0_config(conf); |
| 223 | } |
| 224 | if (txx9_dc_disable) { |
| 225 | early_flush_dcache(); |
| 226 | conf &= ~TX39_CONF_DCE; |
| 227 | write_c0_config(conf); |
| 228 | } |
| 229 | |
| 230 | /* enable cache */ |
| 231 | conf = read_c0_config(); |
| 232 | if (!txx9_ic_disable) |
| 233 | conf |= TX39_CONF_ICE; |
| 234 | if (!txx9_dc_disable) |
| 235 | conf |= TX39_CONF_DCE; |
| 236 | write_c0_config(conf); |
| 237 | |
| 238 | if (!(conf & TX39_CONF_ICE)) |
| 239 | pr_info("TX39XX I-Cache disabled.\n"); |
| 240 | if (!(conf & TX39_CONF_DCE)) |
| 241 | pr_info("TX39XX D-Cache disabled.\n"); |
| 242 | } |
| 243 | #else |
| 244 | static inline void txx9_cache_fixup(void) |
| 245 | { |
| 246 | } |
| 247 | #endif |
| 248 | |
Atsushi Nemoto | 860e546 | 2008-08-19 22:55:08 +0900 | [diff] [blame] | 249 | static void __init preprocess_cmdline(void) |
Atsushi Nemoto | edcaf1a | 2008-07-11 23:27:54 +0900 | [diff] [blame] | 250 | { |
Dmitri Vorobiev | 7580c9c | 2009-10-13 23:43:24 +0300 | [diff] [blame] | 251 | static char cmdline[COMMAND_LINE_SIZE] __initdata; |
Atsushi Nemoto | 860e546 | 2008-08-19 22:55:08 +0900 | [diff] [blame] | 252 | char *s; |
| 253 | |
| 254 | strcpy(cmdline, arcs_cmdline); |
| 255 | s = cmdline; |
| 256 | arcs_cmdline[0] = '\0'; |
| 257 | while (s && *s) { |
| 258 | char *str = strsep(&s, " "); |
| 259 | if (strncmp(str, "board=", 6) == 0) { |
| 260 | txx9_board_vec = find_board_byname(str + 6); |
| 261 | continue; |
| 262 | } else if (strncmp(str, "masterclk=", 10) == 0) { |
Daniel Walter | 8e9ecbc | 2014-06-03 16:22:08 +0100 | [diff] [blame] | 263 | unsigned int val; |
| 264 | if (kstrtouint(str + 10, 10, &val) == 0) |
Atsushi Nemoto | 860e546 | 2008-08-19 22:55:08 +0900 | [diff] [blame] | 265 | txx9_master_clock = val; |
| 266 | continue; |
Atsushi Nemoto | d10e025 | 2008-08-19 22:55:09 +0900 | [diff] [blame] | 267 | } else if (strcmp(str, "icdisable") == 0) { |
| 268 | txx9_ic_disable = 1; |
| 269 | continue; |
| 270 | } else if (strcmp(str, "dcdisable") == 0) { |
| 271 | txx9_dc_disable = 1; |
| 272 | continue; |
Atsushi Nemoto | c7b95bc | 2008-08-19 22:55:10 +0900 | [diff] [blame] | 273 | } else if (strcmp(str, "toeoff") == 0) { |
| 274 | txx9_ccfg_toeon = 0; |
| 275 | continue; |
| 276 | } else if (strcmp(str, "toeon") == 0) { |
| 277 | txx9_ccfg_toeon = 1; |
| 278 | continue; |
Atsushi Nemoto | 860e546 | 2008-08-19 22:55:08 +0900 | [diff] [blame] | 279 | } |
| 280 | if (arcs_cmdline[0]) |
| 281 | strcat(arcs_cmdline, " "); |
| 282 | strcat(arcs_cmdline, str); |
| 283 | } |
Atsushi Nemoto | d10e025 | 2008-08-19 22:55:09 +0900 | [diff] [blame] | 284 | |
| 285 | txx9_cache_fixup(); |
Atsushi Nemoto | 860e546 | 2008-08-19 22:55:08 +0900 | [diff] [blame] | 286 | } |
| 287 | |
| 288 | static void __init select_board(void) |
| 289 | { |
| 290 | const char *envstr; |
| 291 | |
| 292 | /* first, determine by "board=" argument in preprocess_cmdline() */ |
| 293 | if (txx9_board_vec) |
| 294 | return; |
| 295 | /* next, determine by "board" envvar */ |
| 296 | envstr = prom_getenv("board"); |
| 297 | if (envstr) { |
| 298 | txx9_board_vec = find_board_byname(envstr); |
| 299 | if (txx9_board_vec) |
| 300 | return; |
| 301 | } |
| 302 | |
| 303 | /* select "default" board */ |
Markos Chandras | c8acd40 | 2013-08-14 09:57:16 +0100 | [diff] [blame] | 304 | #ifdef CONFIG_TOSHIBA_JMR3927 |
Yoichi Yuasa | 7a1fdf1 | 2008-07-13 19:51:55 +0900 | [diff] [blame] | 305 | txx9_board_vec = &jmr3927_vec; |
Atsushi Nemoto | edcaf1a | 2008-07-11 23:27:54 +0900 | [diff] [blame] | 306 | #endif |
| 307 | #ifdef CONFIG_CPU_TX49XX |
| 308 | switch (TX4938_REV_PCODE()) { |
Atsushi Nemoto | 8d795f2 | 2008-07-18 00:43:48 +0900 | [diff] [blame] | 309 | #ifdef CONFIG_TOSHIBA_RBTX4927 |
Atsushi Nemoto | edcaf1a | 2008-07-11 23:27:54 +0900 | [diff] [blame] | 310 | case 0x4927: |
Yoichi Yuasa | 7a1fdf1 | 2008-07-13 19:51:55 +0900 | [diff] [blame] | 311 | txx9_board_vec = &rbtx4927_vec; |
Atsushi Nemoto | edcaf1a | 2008-07-11 23:27:54 +0900 | [diff] [blame] | 312 | break; |
| 313 | case 0x4937: |
Yoichi Yuasa | 7a1fdf1 | 2008-07-13 19:51:55 +0900 | [diff] [blame] | 314 | txx9_board_vec = &rbtx4937_vec; |
Atsushi Nemoto | edcaf1a | 2008-07-11 23:27:54 +0900 | [diff] [blame] | 315 | break; |
Atsushi Nemoto | 8d795f2 | 2008-07-18 00:43:48 +0900 | [diff] [blame] | 316 | #endif |
| 317 | #ifdef CONFIG_TOSHIBA_RBTX4938 |
Atsushi Nemoto | edcaf1a | 2008-07-11 23:27:54 +0900 | [diff] [blame] | 318 | case 0x4938: |
Yoichi Yuasa | 7a1fdf1 | 2008-07-13 19:51:55 +0900 | [diff] [blame] | 319 | txx9_board_vec = &rbtx4938_vec; |
Atsushi Nemoto | edcaf1a | 2008-07-11 23:27:54 +0900 | [diff] [blame] | 320 | break; |
Atsushi Nemoto | 8d795f2 | 2008-07-18 00:43:48 +0900 | [diff] [blame] | 321 | #endif |
Atsushi Nemoto | b27311e | 2008-09-01 22:22:40 +0900 | [diff] [blame] | 322 | #ifdef CONFIG_TOSHIBA_RBTX4939 |
| 323 | case 0x4939: |
| 324 | txx9_board_vec = &rbtx4939_vec; |
| 325 | break; |
| 326 | #endif |
Atsushi Nemoto | edcaf1a | 2008-07-11 23:27:54 +0900 | [diff] [blame] | 327 | } |
| 328 | #endif |
Atsushi Nemoto | 860e546 | 2008-08-19 22:55:08 +0900 | [diff] [blame] | 329 | } |
| 330 | |
| 331 | void __init prom_init(void) |
| 332 | { |
| 333 | prom_init_cmdline(); |
| 334 | preprocess_cmdline(); |
| 335 | select_board(); |
Yoichi Yuasa | 7a1fdf1 | 2008-07-13 19:51:55 +0900 | [diff] [blame] | 336 | |
| 337 | strcpy(txx9_system_type, txx9_board_vec->system); |
| 338 | |
Atsushi Nemoto | 7b22609 | 2008-07-14 00:15:04 +0900 | [diff] [blame] | 339 | txx9_board_vec->prom_init(); |
Atsushi Nemoto | edcaf1a | 2008-07-11 23:27:54 +0900 | [diff] [blame] | 340 | } |
| 341 | |
| 342 | void __init prom_free_prom_memory(void) |
| 343 | { |
Atsushi Nemoto | b6263ff | 2008-09-01 22:22:41 +0900 | [diff] [blame] | 344 | unsigned long saddr = PAGE_SIZE; |
| 345 | unsigned long eaddr = __pa_symbol(&_text); |
| 346 | |
| 347 | if (saddr < eaddr) |
| 348 | free_init_pages("prom memory", saddr, eaddr); |
Atsushi Nemoto | edcaf1a | 2008-07-11 23:27:54 +0900 | [diff] [blame] | 349 | } |
| 350 | |
| 351 | const char *get_system_type(void) |
| 352 | { |
| 353 | return txx9_system_type; |
| 354 | } |
| 355 | |
Atsushi Nemoto | 265b89d | 2008-08-19 22:55:07 +0900 | [diff] [blame] | 356 | const char *__init prom_getenv(const char *name) |
| 357 | { |
Geert Uytterhoeven | 97b0511 | 2008-10-27 15:25:49 +0100 | [diff] [blame] | 358 | const s32 *str; |
Atsushi Nemoto | 265b89d | 2008-08-19 22:55:07 +0900 | [diff] [blame] | 359 | |
Geert Uytterhoeven | 97b0511 | 2008-10-27 15:25:49 +0100 | [diff] [blame] | 360 | if (fw_arg2 < CKSEG0) |
Atsushi Nemoto | 265b89d | 2008-08-19 22:55:07 +0900 | [diff] [blame] | 361 | return NULL; |
Geert Uytterhoeven | 97b0511 | 2008-10-27 15:25:49 +0100 | [diff] [blame] | 362 | |
| 363 | str = (const s32 *)fw_arg2; |
Atsushi Nemoto | 265b89d | 2008-08-19 22:55:07 +0900 | [diff] [blame] | 364 | /* YAMON style ("name", "value" pairs) */ |
| 365 | while (str[0] && str[1]) { |
| 366 | if (!strcmp((const char *)(unsigned long)str[0], name)) |
| 367 | return (const char *)(unsigned long)str[1]; |
| 368 | str += 2; |
| 369 | } |
| 370 | return NULL; |
| 371 | } |
| 372 | |
Atsushi Nemoto | a49297e | 2008-07-24 00:25:17 +0900 | [diff] [blame] | 373 | static void __noreturn txx9_machine_halt(void) |
| 374 | { |
| 375 | local_irq_disable(); |
| 376 | clear_c0_status(ST0_IM); |
| 377 | while (1) { |
| 378 | if (cpu_wait) { |
| 379 | (*cpu_wait)(); |
| 380 | if (cpu_has_counter) { |
| 381 | /* |
| 382 | * Clear counter interrupt while it |
| 383 | * breaks WAIT instruction even if |
| 384 | * masked. |
| 385 | */ |
| 386 | write_c0_compare(0); |
| 387 | } |
| 388 | } |
| 389 | } |
| 390 | } |
| 391 | |
Atsushi Nemoto | 6831472 | 2008-07-24 00:25:18 +0900 | [diff] [blame] | 392 | /* Watchdog support */ |
| 393 | void __init txx9_wdt_init(unsigned long base) |
| 394 | { |
| 395 | struct resource res = { |
| 396 | .start = base, |
| 397 | .end = base + 0x100 - 1, |
| 398 | .flags = IORESOURCE_MEM, |
| 399 | }; |
| 400 | platform_device_register_simple("txx9wdt", -1, &res, 1); |
| 401 | } |
| 402 | |
Atsushi Nemoto | 496a3b5 | 2008-08-19 22:55:15 +0900 | [diff] [blame] | 403 | void txx9_wdt_now(unsigned long base) |
| 404 | { |
| 405 | struct txx9_tmr_reg __iomem *tmrptr = |
| 406 | ioremap(base, sizeof(struct txx9_tmr_reg)); |
| 407 | /* disable watch dog timer */ |
| 408 | __raw_writel(TXx9_TMWTMR_WDIS | TXx9_TMWTMR_TWC, &tmrptr->wtmr); |
| 409 | __raw_writel(0, &tmrptr->tcr); |
| 410 | /* kick watchdog */ |
| 411 | __raw_writel(TXx9_TMWTMR_TWIE, &tmrptr->wtmr); |
| 412 | __raw_writel(1, &tmrptr->cpra); /* immediate */ |
| 413 | __raw_writel(TXx9_TMTCR_TCE | TXx9_TMTCR_CCDE | TXx9_TMTCR_TMODE_WDOG, |
| 414 | &tmrptr->tcr); |
| 415 | } |
| 416 | |
Atsushi Nemoto | c49f91f | 2008-07-24 00:25:20 +0900 | [diff] [blame] | 417 | /* SPI support */ |
| 418 | void __init txx9_spi_init(int busid, unsigned long base, int irq) |
| 419 | { |
| 420 | struct resource res[] = { |
| 421 | { |
| 422 | .start = base, |
| 423 | .end = base + 0x20 - 1, |
| 424 | .flags = IORESOURCE_MEM, |
| 425 | }, { |
| 426 | .start = irq, |
| 427 | .flags = IORESOURCE_IRQ, |
| 428 | }, |
| 429 | }; |
| 430 | platform_device_register_simple("spi_txx9", busid, |
| 431 | res, ARRAY_SIZE(res)); |
| 432 | } |
| 433 | |
| 434 | void __init txx9_ethaddr_init(unsigned int id, unsigned char *ethaddr) |
| 435 | { |
| 436 | struct platform_device *pdev = |
| 437 | platform_device_alloc("tc35815-mac", id); |
| 438 | if (!pdev || |
| 439 | platform_device_add_data(pdev, ethaddr, 6) || |
| 440 | platform_device_add(pdev)) |
| 441 | platform_device_put(pdev); |
| 442 | } |
| 443 | |
Atsushi Nemoto | 7779a5e | 2008-07-25 23:08:06 +0900 | [diff] [blame] | 444 | void __init txx9_sio_init(unsigned long baseaddr, int irq, |
| 445 | unsigned int line, unsigned int sclk, int nocts) |
| 446 | { |
| 447 | #ifdef CONFIG_SERIAL_TXX9 |
| 448 | struct uart_port req; |
| 449 | |
| 450 | memset(&req, 0, sizeof(req)); |
| 451 | req.line = line; |
| 452 | req.iotype = UPIO_MEM; |
| 453 | req.membase = ioremap(baseaddr, 0x24); |
| 454 | req.mapbase = baseaddr; |
| 455 | req.irq = irq; |
| 456 | if (!nocts) |
| 457 | req.flags |= UPF_BUGGY_UART /*HAVE_CTS_LINE*/; |
| 458 | if (sclk) { |
| 459 | req.flags |= UPF_MAGIC_MULTIPLIER /*USE_SCLK*/; |
| 460 | req.uartclk = sclk; |
| 461 | } else |
| 462 | req.uartclk = TXX9_IMCLK; |
| 463 | early_serial_txx9_setup(&req); |
| 464 | #endif /* CONFIG_SERIAL_TXX9 */ |
| 465 | } |
| 466 | |
Atsushi Nemoto | e352953 | 2008-07-29 22:10:08 +0900 | [diff] [blame] | 467 | #ifdef CONFIG_EARLY_PRINTK |
Aaro Koskinen | f7be4e7 | 2013-02-11 20:51:49 +0000 | [diff] [blame] | 468 | static void null_prom_putchar(char c) |
Atsushi Nemoto | e352953 | 2008-07-29 22:10:08 +0900 | [diff] [blame] | 469 | { |
| 470 | } |
Aaro Koskinen | f7be4e7 | 2013-02-11 20:51:49 +0000 | [diff] [blame] | 471 | void (*txx9_prom_putchar)(char c) = null_prom_putchar; |
Atsushi Nemoto | e352953 | 2008-07-29 22:10:08 +0900 | [diff] [blame] | 472 | |
Aaro Koskinen | f7be4e7 | 2013-02-11 20:51:49 +0000 | [diff] [blame] | 473 | void prom_putchar(char c) |
Atsushi Nemoto | e352953 | 2008-07-29 22:10:08 +0900 | [diff] [blame] | 474 | { |
| 475 | txx9_prom_putchar(c); |
| 476 | } |
| 477 | |
| 478 | static void __iomem *early_txx9_sio_port; |
| 479 | |
Aaro Koskinen | f7be4e7 | 2013-02-11 20:51:49 +0000 | [diff] [blame] | 480 | static void early_txx9_sio_putchar(char c) |
Atsushi Nemoto | e352953 | 2008-07-29 22:10:08 +0900 | [diff] [blame] | 481 | { |
| 482 | #define TXX9_SICISR 0x0c |
| 483 | #define TXX9_SITFIFO 0x1c |
| 484 | #define TXX9_SICISR_TXALS 0x00000002 |
| 485 | while (!(__raw_readl(early_txx9_sio_port + TXX9_SICISR) & |
| 486 | TXX9_SICISR_TXALS)) |
| 487 | ; |
| 488 | __raw_writel(c, early_txx9_sio_port + TXX9_SITFIFO); |
| 489 | } |
| 490 | |
| 491 | void __init txx9_sio_putchar_init(unsigned long baseaddr) |
| 492 | { |
| 493 | early_txx9_sio_port = ioremap(baseaddr, 0x24); |
| 494 | txx9_prom_putchar = early_txx9_sio_putchar; |
| 495 | } |
| 496 | #endif /* CONFIG_EARLY_PRINTK */ |
| 497 | |
Atsushi Nemoto | edcaf1a | 2008-07-11 23:27:54 +0900 | [diff] [blame] | 498 | /* wrappers */ |
| 499 | void __init plat_mem_setup(void) |
| 500 | { |
Atsushi Nemoto | 94a4c32 | 2008-07-19 01:51:47 +0900 | [diff] [blame] | 501 | ioport_resource.start = 0; |
| 502 | ioport_resource.end = ~0UL; /* no limit */ |
| 503 | iomem_resource.start = 0; |
| 504 | iomem_resource.end = ~0UL; /* no limit */ |
Atsushi Nemoto | a49297e | 2008-07-24 00:25:17 +0900 | [diff] [blame] | 505 | |
| 506 | /* fallback restart/halt routines */ |
| 507 | _machine_restart = (void (*)(char *))txx9_machine_halt; |
| 508 | _machine_halt = txx9_machine_halt; |
| 509 | pm_power_off = txx9_machine_halt; |
| 510 | |
Atsushi Nemoto | 0751752 | 2008-07-24 00:25:15 +0900 | [diff] [blame] | 511 | #ifdef CONFIG_PCI |
| 512 | pcibios_plat_setup = txx9_pcibios_setup; |
| 513 | #endif |
Atsushi Nemoto | edcaf1a | 2008-07-11 23:27:54 +0900 | [diff] [blame] | 514 | txx9_board_vec->mem_setup(); |
| 515 | } |
| 516 | |
| 517 | void __init arch_init_irq(void) |
| 518 | { |
| 519 | txx9_board_vec->irq_setup(); |
| 520 | } |
| 521 | |
| 522 | void __init plat_time_init(void) |
| 523 | { |
Atsushi Nemoto | 1374d08 | 2008-07-31 22:29:53 +0900 | [diff] [blame] | 524 | #ifdef CONFIG_CPU_TX49XX |
| 525 | mips_hpt_frequency = txx9_cpu_clock / 2; |
| 526 | #endif |
Atsushi Nemoto | edcaf1a | 2008-07-11 23:27:54 +0900 | [diff] [blame] | 527 | txx9_board_vec->time_init(); |
| 528 | } |
| 529 | |
Geert Uytterhoeven | 44ce9a9 | 2016-09-11 10:59:58 +0200 | [diff] [blame] | 530 | static void txx9_clk_init(void) |
| 531 | { |
| 532 | struct clk_hw *hw; |
| 533 | int error; |
| 534 | |
| 535 | hw = clk_hw_register_fixed_rate(NULL, "gbus", NULL, 0, txx9_gbus_clock); |
| 536 | if (IS_ERR(hw)) { |
| 537 | error = PTR_ERR(hw); |
| 538 | goto fail; |
| 539 | } |
| 540 | |
| 541 | hw = clk_hw_register_fixed_factor(NULL, "imbus", "gbus", 0, 1, 2); |
| 542 | error = clk_hw_register_clkdev(hw, "imbus_clk", NULL); |
| 543 | if (error) |
| 544 | goto fail; |
| 545 | |
| 546 | #ifdef CONFIG_CPU_TX49XX |
| 547 | if (TX4938_REV_PCODE() == 0x4938) { |
| 548 | hw = clk_hw_register_fixed_factor(NULL, "spi", "gbus", 0, 1, 4); |
| 549 | error = clk_hw_register_clkdev(hw, "spi-baseclk", NULL); |
| 550 | if (error) |
| 551 | goto fail; |
| 552 | } |
| 553 | #endif |
| 554 | |
| 555 | return; |
| 556 | |
| 557 | fail: |
| 558 | pr_err("Failed to register clocks: %d\n", error); |
| 559 | } |
| 560 | |
Atsushi Nemoto | edcaf1a | 2008-07-11 23:27:54 +0900 | [diff] [blame] | 561 | static int __init _txx9_arch_init(void) |
| 562 | { |
Geert Uytterhoeven | 44ce9a9 | 2016-09-11 10:59:58 +0200 | [diff] [blame] | 563 | txx9_clk_init(); |
| 564 | |
Atsushi Nemoto | edcaf1a | 2008-07-11 23:27:54 +0900 | [diff] [blame] | 565 | if (txx9_board_vec->arch_init) |
| 566 | txx9_board_vec->arch_init(); |
| 567 | return 0; |
| 568 | } |
| 569 | arch_initcall(_txx9_arch_init); |
| 570 | |
| 571 | static int __init _txx9_device_init(void) |
| 572 | { |
| 573 | if (txx9_board_vec->device_init) |
| 574 | txx9_board_vec->device_init(); |
| 575 | return 0; |
| 576 | } |
| 577 | device_initcall(_txx9_device_init); |
| 578 | |
| 579 | int (*txx9_irq_dispatch)(int pending); |
| 580 | asmlinkage void plat_irq_dispatch(void) |
| 581 | { |
| 582 | int pending = read_c0_status() & read_c0_cause() & ST0_IM; |
| 583 | int irq = txx9_irq_dispatch(pending); |
| 584 | |
| 585 | if (likely(irq >= 0)) |
| 586 | do_IRQ(irq); |
| 587 | else |
| 588 | spurious_interrupt(); |
| 589 | } |
Atsushi Nemoto | 4c642f3 | 2008-07-13 23:37:56 +0900 | [diff] [blame] | 590 | |
| 591 | /* see include/asm-mips/mach-tx39xx/mangle-port.h, for example. */ |
| 592 | #ifdef NEEDS_TXX9_SWIZZLE_ADDR_B |
| 593 | static unsigned long __swizzle_addr_none(unsigned long port) |
| 594 | { |
| 595 | return port; |
| 596 | } |
| 597 | unsigned long (*__swizzle_addr_b)(unsigned long port) = __swizzle_addr_none; |
| 598 | EXPORT_SYMBOL(__swizzle_addr_b); |
| 599 | #endif |
Atsushi Nemoto | 51f607c | 2008-08-19 22:55:11 +0900 | [diff] [blame] | 600 | |
Atsushi Nemoto | 1ba5a17 | 2008-10-21 00:01:06 +0900 | [diff] [blame] | 601 | #ifdef NEEDS_TXX9_IOSWABW |
| 602 | static u16 ioswabw_default(volatile u16 *a, u16 x) |
| 603 | { |
| 604 | return le16_to_cpu(x); |
| 605 | } |
| 606 | static u16 __mem_ioswabw_default(volatile u16 *a, u16 x) |
| 607 | { |
| 608 | return x; |
| 609 | } |
| 610 | u16 (*ioswabw)(volatile u16 *a, u16 x) = ioswabw_default; |
| 611 | EXPORT_SYMBOL(ioswabw); |
| 612 | u16 (*__mem_ioswabw)(volatile u16 *a, u16 x) = __mem_ioswabw_default; |
| 613 | EXPORT_SYMBOL(__mem_ioswabw); |
| 614 | #endif |
| 615 | |
Atsushi Nemoto | 51f607c | 2008-08-19 22:55:11 +0900 | [diff] [blame] | 616 | void __init txx9_physmap_flash_init(int no, unsigned long addr, |
| 617 | unsigned long size, |
| 618 | const struct physmap_flash_data *pdata) |
| 619 | { |
Florian Fainelli | b33b440 | 2012-01-31 18:19:05 +0100 | [diff] [blame] | 620 | #if IS_ENABLED(CONFIG_MTD_PHYSMAP) |
Atsushi Nemoto | 51f607c | 2008-08-19 22:55:11 +0900 | [diff] [blame] | 621 | struct resource res = { |
| 622 | .start = addr, |
| 623 | .end = addr + size - 1, |
| 624 | .flags = IORESOURCE_MEM, |
| 625 | }; |
| 626 | struct platform_device *pdev; |
Atsushi Nemoto | 51f607c | 2008-08-19 22:55:11 +0900 | [diff] [blame] | 627 | static struct mtd_partition parts[2]; |
| 628 | struct physmap_flash_data pdata_part; |
| 629 | |
| 630 | /* If this area contained boot area, make separate partition */ |
| 631 | if (pdata->nr_parts == 0 && !pdata->parts && |
| 632 | addr < 0x1fc00000 && addr + size > 0x1fc00000 && |
| 633 | !parts[0].name) { |
| 634 | parts[0].name = "boot"; |
| 635 | parts[0].offset = 0x1fc00000 - addr; |
| 636 | parts[0].size = addr + size - 0x1fc00000; |
| 637 | parts[1].name = "user"; |
| 638 | parts[1].offset = 0; |
| 639 | parts[1].size = 0x1fc00000 - addr; |
| 640 | pdata_part = *pdata; |
| 641 | pdata_part.nr_parts = ARRAY_SIZE(parts); |
| 642 | pdata_part.parts = parts; |
| 643 | pdata = &pdata_part; |
| 644 | } |
Jamie Iles | 4785488 | 2011-05-23 10:22:55 +0100 | [diff] [blame] | 645 | |
Atsushi Nemoto | 51f607c | 2008-08-19 22:55:11 +0900 | [diff] [blame] | 646 | pdev = platform_device_alloc("physmap-flash", no); |
| 647 | if (!pdev || |
| 648 | platform_device_add_resources(pdev, &res, 1) || |
| 649 | platform_device_add_data(pdev, pdata, sizeof(*pdata)) || |
| 650 | platform_device_add(pdev)) |
| 651 | platform_device_put(pdev); |
| 652 | #endif |
| 653 | } |
Atsushi Nemoto | ae027ea | 2008-09-01 22:22:38 +0900 | [diff] [blame] | 654 | |
Atsushi Nemoto | a591f5d | 2009-03-04 12:01:31 -0800 | [diff] [blame] | 655 | void __init txx9_ndfmc_init(unsigned long baseaddr, |
| 656 | const struct txx9ndfmc_platform_data *pdata) |
| 657 | { |
Florian Fainelli | b33b440 | 2012-01-31 18:19:05 +0100 | [diff] [blame] | 658 | #if IS_ENABLED(CONFIG_MTD_NAND_TXX9NDFMC) |
Atsushi Nemoto | a591f5d | 2009-03-04 12:01:31 -0800 | [diff] [blame] | 659 | struct resource res = { |
| 660 | .start = baseaddr, |
| 661 | .end = baseaddr + 0x1000 - 1, |
| 662 | .flags = IORESOURCE_MEM, |
| 663 | }; |
| 664 | struct platform_device *pdev = platform_device_alloc("txx9ndfmc", -1); |
| 665 | |
| 666 | if (!pdev || |
| 667 | platform_device_add_resources(pdev, &res, 1) || |
| 668 | platform_device_add_data(pdev, pdata, sizeof(*pdata)) || |
| 669 | platform_device_add(pdev)) |
| 670 | platform_device_put(pdev); |
| 671 | #endif |
| 672 | } |
| 673 | |
Florian Fainelli | b33b440 | 2012-01-31 18:19:05 +0100 | [diff] [blame] | 674 | #if IS_ENABLED(CONFIG_LEDS_GPIO) |
Atsushi Nemoto | ae027ea | 2008-09-01 22:22:38 +0900 | [diff] [blame] | 675 | static DEFINE_SPINLOCK(txx9_iocled_lock); |
| 676 | |
| 677 | #define TXX9_IOCLED_MAXLEDS 8 |
| 678 | |
| 679 | struct txx9_iocled_data { |
| 680 | struct gpio_chip chip; |
| 681 | u8 cur_val; |
| 682 | void __iomem *mmioaddr; |
| 683 | struct gpio_led_platform_data pdata; |
| 684 | struct gpio_led leds[TXX9_IOCLED_MAXLEDS]; |
| 685 | char names[TXX9_IOCLED_MAXLEDS][32]; |
| 686 | }; |
| 687 | |
| 688 | static int txx9_iocled_get(struct gpio_chip *chip, unsigned int offset) |
| 689 | { |
Linus Walleij | be7658f | 2015-12-08 14:40:40 +0100 | [diff] [blame] | 690 | struct txx9_iocled_data *data = gpiochip_get_data(chip); |
Linus Walleij | 8cbe4b5 | 2015-12-22 15:41:44 +0100 | [diff] [blame] | 691 | return !!(data->cur_val & (1 << offset)); |
Atsushi Nemoto | ae027ea | 2008-09-01 22:22:38 +0900 | [diff] [blame] | 692 | } |
| 693 | |
| 694 | static void txx9_iocled_set(struct gpio_chip *chip, unsigned int offset, |
| 695 | int value) |
| 696 | { |
Linus Walleij | be7658f | 2015-12-08 14:40:40 +0100 | [diff] [blame] | 697 | struct txx9_iocled_data *data = gpiochip_get_data(chip); |
Atsushi Nemoto | ae027ea | 2008-09-01 22:22:38 +0900 | [diff] [blame] | 698 | unsigned long flags; |
| 699 | spin_lock_irqsave(&txx9_iocled_lock, flags); |
| 700 | if (value) |
| 701 | data->cur_val |= 1 << offset; |
| 702 | else |
| 703 | data->cur_val &= ~(1 << offset); |
| 704 | writeb(data->cur_val, data->mmioaddr); |
| 705 | mmiowb(); |
| 706 | spin_unlock_irqrestore(&txx9_iocled_lock, flags); |
| 707 | } |
| 708 | |
| 709 | static int txx9_iocled_dir_in(struct gpio_chip *chip, unsigned int offset) |
| 710 | { |
| 711 | return 0; |
| 712 | } |
| 713 | |
| 714 | static int txx9_iocled_dir_out(struct gpio_chip *chip, unsigned int offset, |
| 715 | int value) |
| 716 | { |
| 717 | txx9_iocled_set(chip, offset, value); |
| 718 | return 0; |
| 719 | } |
| 720 | |
| 721 | void __init txx9_iocled_init(unsigned long baseaddr, |
| 722 | int basenum, unsigned int num, int lowactive, |
| 723 | const char *color, char **deftriggers) |
| 724 | { |
| 725 | struct txx9_iocled_data *iocled; |
| 726 | struct platform_device *pdev; |
| 727 | int i; |
| 728 | static char *default_triggers[] __initdata = { |
| 729 | "heartbeat", |
Stephan Linz | dde0051 | 2016-06-10 08:00:00 +0200 | [diff] [blame] | 730 | "disk-activity", |
Atsushi Nemoto | ae027ea | 2008-09-01 22:22:38 +0900 | [diff] [blame] | 731 | "nand-disk", |
| 732 | NULL, |
| 733 | }; |
| 734 | |
| 735 | if (!deftriggers) |
| 736 | deftriggers = default_triggers; |
| 737 | iocled = kzalloc(sizeof(*iocled), GFP_KERNEL); |
| 738 | if (!iocled) |
| 739 | return; |
| 740 | iocled->mmioaddr = ioremap(baseaddr, 1); |
| 741 | if (!iocled->mmioaddr) |
Julia Lawall | 70ebadc | 2009-09-13 21:15:18 +0200 | [diff] [blame] | 742 | goto out_free; |
Atsushi Nemoto | ae027ea | 2008-09-01 22:22:38 +0900 | [diff] [blame] | 743 | iocled->chip.get = txx9_iocled_get; |
| 744 | iocled->chip.set = txx9_iocled_set; |
| 745 | iocled->chip.direction_input = txx9_iocled_dir_in; |
| 746 | iocled->chip.direction_output = txx9_iocled_dir_out; |
| 747 | iocled->chip.label = "iocled"; |
| 748 | iocled->chip.base = basenum; |
| 749 | iocled->chip.ngpio = num; |
Linus Walleij | be7658f | 2015-12-08 14:40:40 +0100 | [diff] [blame] | 750 | if (gpiochip_add_data(&iocled->chip, iocled)) |
Julia Lawall | 70ebadc | 2009-09-13 21:15:18 +0200 | [diff] [blame] | 751 | goto out_unmap; |
Atsushi Nemoto | ae027ea | 2008-09-01 22:22:38 +0900 | [diff] [blame] | 752 | if (basenum < 0) |
| 753 | basenum = iocled->chip.base; |
| 754 | |
| 755 | pdev = platform_device_alloc("leds-gpio", basenum); |
| 756 | if (!pdev) |
Julia Lawall | 70ebadc | 2009-09-13 21:15:18 +0200 | [diff] [blame] | 757 | goto out_gpio; |
Atsushi Nemoto | ae027ea | 2008-09-01 22:22:38 +0900 | [diff] [blame] | 758 | iocled->pdata.num_leds = num; |
| 759 | iocled->pdata.leds = iocled->leds; |
| 760 | for (i = 0; i < num; i++) { |
| 761 | struct gpio_led *led = &iocled->leds[i]; |
| 762 | snprintf(iocled->names[i], sizeof(iocled->names[i]), |
| 763 | "iocled:%s:%u", color, i); |
| 764 | led->name = iocled->names[i]; |
| 765 | led->gpio = basenum + i; |
| 766 | led->active_low = lowactive; |
| 767 | if (deftriggers && *deftriggers) |
| 768 | led->default_trigger = *deftriggers++; |
| 769 | } |
| 770 | pdev->dev.platform_data = &iocled->pdata; |
| 771 | if (platform_device_add(pdev)) |
Julia Lawall | 70ebadc | 2009-09-13 21:15:18 +0200 | [diff] [blame] | 772 | goto out_pdev; |
| 773 | return; |
abdoulaye berthe | 88d5e52 | 2014-07-12 22:30:14 +0200 | [diff] [blame] | 774 | |
Julia Lawall | 70ebadc | 2009-09-13 21:15:18 +0200 | [diff] [blame] | 775 | out_pdev: |
| 776 | platform_device_put(pdev); |
| 777 | out_gpio: |
abdoulaye berthe | 88d5e52 | 2014-07-12 22:30:14 +0200 | [diff] [blame] | 778 | gpiochip_remove(&iocled->chip); |
Julia Lawall | 70ebadc | 2009-09-13 21:15:18 +0200 | [diff] [blame] | 779 | out_unmap: |
| 780 | iounmap(iocled->mmioaddr); |
| 781 | out_free: |
| 782 | kfree(iocled); |
Atsushi Nemoto | ae027ea | 2008-09-01 22:22:38 +0900 | [diff] [blame] | 783 | } |
| 784 | #else /* CONFIG_LEDS_GPIO */ |
| 785 | void __init txx9_iocled_init(unsigned long baseaddr, |
| 786 | int basenum, unsigned int num, int lowactive, |
| 787 | const char *color, char **deftriggers) |
| 788 | { |
| 789 | } |
| 790 | #endif /* CONFIG_LEDS_GPIO */ |
Atsushi Nemoto | f48c8c9 | 2009-04-23 00:40:31 +0900 | [diff] [blame] | 791 | |
| 792 | void __init txx9_dmac_init(int id, unsigned long baseaddr, int irq, |
| 793 | const struct txx9dmac_platform_data *pdata) |
| 794 | { |
Florian Fainelli | b33b440 | 2012-01-31 18:19:05 +0100 | [diff] [blame] | 795 | #if IS_ENABLED(CONFIG_TXX9_DMAC) |
Atsushi Nemoto | f48c8c9 | 2009-04-23 00:40:31 +0900 | [diff] [blame] | 796 | struct resource res[] = { |
| 797 | { |
| 798 | .start = baseaddr, |
| 799 | .end = baseaddr + 0x800 - 1, |
| 800 | .flags = IORESOURCE_MEM, |
| 801 | #ifndef CONFIG_MACH_TX49XX |
| 802 | }, { |
| 803 | .start = irq, |
| 804 | .flags = IORESOURCE_IRQ, |
| 805 | #endif |
| 806 | } |
| 807 | }; |
| 808 | #ifdef CONFIG_MACH_TX49XX |
| 809 | struct resource chan_res[] = { |
| 810 | { |
| 811 | .flags = IORESOURCE_IRQ, |
| 812 | } |
| 813 | }; |
| 814 | #endif |
| 815 | struct platform_device *pdev = platform_device_alloc("txx9dmac", id); |
| 816 | struct txx9dmac_chan_platform_data cpdata; |
| 817 | int i; |
| 818 | |
| 819 | if (!pdev || |
| 820 | platform_device_add_resources(pdev, res, ARRAY_SIZE(res)) || |
| 821 | platform_device_add_data(pdev, pdata, sizeof(*pdata)) || |
| 822 | platform_device_add(pdev)) { |
| 823 | platform_device_put(pdev); |
| 824 | return; |
| 825 | } |
| 826 | memset(&cpdata, 0, sizeof(cpdata)); |
| 827 | cpdata.dmac_dev = pdev; |
| 828 | for (i = 0; i < TXX9_DMA_MAX_NR_CHANNELS; i++) { |
| 829 | #ifdef CONFIG_MACH_TX49XX |
| 830 | chan_res[0].start = irq + i; |
| 831 | #endif |
| 832 | pdev = platform_device_alloc("txx9dmac-chan", |
| 833 | id * TXX9_DMA_MAX_NR_CHANNELS + i); |
| 834 | if (!pdev || |
| 835 | #ifdef CONFIG_MACH_TX49XX |
| 836 | platform_device_add_resources(pdev, chan_res, |
| 837 | ARRAY_SIZE(chan_res)) || |
| 838 | #endif |
| 839 | platform_device_add_data(pdev, &cpdata, sizeof(cpdata)) || |
| 840 | platform_device_add(pdev)) |
| 841 | platform_device_put(pdev); |
| 842 | } |
| 843 | #endif |
| 844 | } |
Atsushi Nemoto | 742cd58 | 2009-05-19 22:12:22 +0900 | [diff] [blame] | 845 | |
| 846 | void __init txx9_aclc_init(unsigned long baseaddr, int irq, |
| 847 | unsigned int dmac_id, |
| 848 | unsigned int dma_chan_out, |
| 849 | unsigned int dma_chan_in) |
| 850 | { |
Florian Fainelli | b33b440 | 2012-01-31 18:19:05 +0100 | [diff] [blame] | 851 | #if IS_ENABLED(CONFIG_SND_SOC_TXX9ACLC) |
Atsushi Nemoto | 742cd58 | 2009-05-19 22:12:22 +0900 | [diff] [blame] | 852 | unsigned int dma_base = dmac_id * TXX9_DMA_MAX_NR_CHANNELS; |
| 853 | struct resource res[] = { |
| 854 | { |
| 855 | .start = baseaddr, |
| 856 | .end = baseaddr + 0x100 - 1, |
| 857 | .flags = IORESOURCE_MEM, |
| 858 | }, { |
| 859 | .start = irq, |
| 860 | .flags = IORESOURCE_IRQ, |
| 861 | }, { |
| 862 | .name = "txx9dmac-chan", |
| 863 | .start = dma_base + dma_chan_out, |
| 864 | .flags = IORESOURCE_DMA, |
| 865 | }, { |
| 866 | .name = "txx9dmac-chan", |
| 867 | .start = dma_base + dma_chan_in, |
| 868 | .flags = IORESOURCE_DMA, |
| 869 | } |
| 870 | }; |
| 871 | struct platform_device *pdev = |
| 872 | platform_device_alloc("txx9aclc-ac97", -1); |
| 873 | |
| 874 | if (!pdev || |
| 875 | platform_device_add_resources(pdev, res, ARRAY_SIZE(res)) || |
| 876 | platform_device_add(pdev)) |
| 877 | platform_device_put(pdev); |
| 878 | #endif |
| 879 | } |
Atsushi Nemoto | c3b28ae | 2009-05-25 22:04:02 +0900 | [diff] [blame] | 880 | |
Kay Sievers | 269a3eb | 2011-12-21 15:09:54 -0800 | [diff] [blame] | 881 | static struct bus_type txx9_sramc_subsys = { |
| 882 | .name = "txx9_sram", |
| 883 | .dev_name = "txx9_sram", |
| 884 | }; |
Atsushi Nemoto | c3b28ae | 2009-05-25 22:04:02 +0900 | [diff] [blame] | 885 | |
Kay Sievers | 269a3eb | 2011-12-21 15:09:54 -0800 | [diff] [blame] | 886 | struct txx9_sramc_dev { |
| 887 | struct device dev; |
Atsushi Nemoto | c3b28ae | 2009-05-25 22:04:02 +0900 | [diff] [blame] | 888 | struct bin_attribute bindata_attr; |
| 889 | void __iomem *base; |
| 890 | }; |
| 891 | |
Chris Wright | 2c3c8be | 2010-05-12 18:28:57 -0700 | [diff] [blame] | 892 | static ssize_t txx9_sram_read(struct file *filp, struct kobject *kobj, |
Atsushi Nemoto | c3b28ae | 2009-05-25 22:04:02 +0900 | [diff] [blame] | 893 | struct bin_attribute *bin_attr, |
| 894 | char *buf, loff_t pos, size_t size) |
| 895 | { |
Kay Sievers | 269a3eb | 2011-12-21 15:09:54 -0800 | [diff] [blame] | 896 | struct txx9_sramc_dev *dev = bin_attr->private; |
Atsushi Nemoto | c3b28ae | 2009-05-25 22:04:02 +0900 | [diff] [blame] | 897 | size_t ramsize = bin_attr->size; |
| 898 | |
| 899 | if (pos >= ramsize) |
| 900 | return 0; |
| 901 | if (pos + size > ramsize) |
| 902 | size = ramsize - pos; |
| 903 | memcpy_fromio(buf, dev->base + pos, size); |
| 904 | return size; |
| 905 | } |
| 906 | |
Chris Wright | 2c3c8be | 2010-05-12 18:28:57 -0700 | [diff] [blame] | 907 | static ssize_t txx9_sram_write(struct file *filp, struct kobject *kobj, |
Atsushi Nemoto | c3b28ae | 2009-05-25 22:04:02 +0900 | [diff] [blame] | 908 | struct bin_attribute *bin_attr, |
| 909 | char *buf, loff_t pos, size_t size) |
| 910 | { |
Kay Sievers | 269a3eb | 2011-12-21 15:09:54 -0800 | [diff] [blame] | 911 | struct txx9_sramc_dev *dev = bin_attr->private; |
Atsushi Nemoto | c3b28ae | 2009-05-25 22:04:02 +0900 | [diff] [blame] | 912 | size_t ramsize = bin_attr->size; |
| 913 | |
| 914 | if (pos >= ramsize) |
| 915 | return 0; |
| 916 | if (pos + size > ramsize) |
| 917 | size = ramsize - pos; |
| 918 | memcpy_toio(dev->base + pos, buf, size); |
| 919 | return size; |
| 920 | } |
| 921 | |
Levente Kurusa | 1610c8a | 2013-12-19 16:03:25 +0100 | [diff] [blame] | 922 | static void txx9_device_release(struct device *dev) |
| 923 | { |
| 924 | struct txx9_sramc_dev *tdev; |
| 925 | |
| 926 | tdev = container_of(dev, struct txx9_sramc_dev, dev); |
| 927 | kfree(tdev); |
| 928 | } |
| 929 | |
Atsushi Nemoto | c3b28ae | 2009-05-25 22:04:02 +0900 | [diff] [blame] | 930 | void __init txx9_sramc_init(struct resource *r) |
| 931 | { |
Kay Sievers | 269a3eb | 2011-12-21 15:09:54 -0800 | [diff] [blame] | 932 | struct txx9_sramc_dev *dev; |
Atsushi Nemoto | c3b28ae | 2009-05-25 22:04:02 +0900 | [diff] [blame] | 933 | size_t size; |
| 934 | int err; |
| 935 | |
Kay Sievers | 269a3eb | 2011-12-21 15:09:54 -0800 | [diff] [blame] | 936 | err = subsys_system_register(&txx9_sramc_subsys, NULL); |
| 937 | if (err) |
| 938 | return; |
Atsushi Nemoto | c3b28ae | 2009-05-25 22:04:02 +0900 | [diff] [blame] | 939 | dev = kzalloc(sizeof(*dev), GFP_KERNEL); |
| 940 | if (!dev) |
| 941 | return; |
| 942 | size = resource_size(r); |
| 943 | dev->base = ioremap(r->start, size); |
Levente Kurusa | 1610c8a | 2013-12-19 16:03:25 +0100 | [diff] [blame] | 944 | if (!dev->base) { |
| 945 | kfree(dev); |
| 946 | return; |
| 947 | } |
| 948 | dev->dev.release = &txx9_device_release; |
Kay Sievers | 269a3eb | 2011-12-21 15:09:54 -0800 | [diff] [blame] | 949 | dev->dev.bus = &txx9_sramc_subsys; |
Wolfram Sang | f937331 | 2010-03-15 01:29:41 +0100 | [diff] [blame] | 950 | sysfs_bin_attr_init(&dev->bindata_attr); |
Atsushi Nemoto | c3b28ae | 2009-05-25 22:04:02 +0900 | [diff] [blame] | 951 | dev->bindata_attr.attr.name = "bindata"; |
| 952 | dev->bindata_attr.attr.mode = S_IRUSR | S_IWUSR; |
| 953 | dev->bindata_attr.read = txx9_sram_read; |
| 954 | dev->bindata_attr.write = txx9_sram_write; |
| 955 | dev->bindata_attr.size = size; |
| 956 | dev->bindata_attr.private = dev; |
Kay Sievers | 269a3eb | 2011-12-21 15:09:54 -0800 | [diff] [blame] | 957 | err = device_register(&dev->dev); |
Atsushi Nemoto | c3b28ae | 2009-05-25 22:04:02 +0900 | [diff] [blame] | 958 | if (err) |
Levente Kurusa | 1610c8a | 2013-12-19 16:03:25 +0100 | [diff] [blame] | 959 | goto exit_put; |
Atsushi Nemoto | c3b28ae | 2009-05-25 22:04:02 +0900 | [diff] [blame] | 960 | err = sysfs_create_bin_file(&dev->dev.kobj, &dev->bindata_attr); |
| 961 | if (err) { |
Kay Sievers | 269a3eb | 2011-12-21 15:09:54 -0800 | [diff] [blame] | 962 | device_unregister(&dev->dev); |
Levente Kurusa | 1610c8a | 2013-12-19 16:03:25 +0100 | [diff] [blame] | 963 | iounmap(dev->base); |
Atsushi Nemoto | c3b28ae | 2009-05-25 22:04:02 +0900 | [diff] [blame] | 964 | kfree(dev); |
| 965 | } |
Levente Kurusa | 1610c8a | 2013-12-19 16:03:25 +0100 | [diff] [blame] | 966 | return; |
| 967 | exit_put: |
| 968 | put_device(&dev->dev); |
| 969 | return; |
Atsushi Nemoto | c3b28ae | 2009-05-25 22:04:02 +0900 | [diff] [blame] | 970 | } |