| 1 | /* |
| 2 | * (C) Copyright 2007 OpenMoko, Inc. |
| 3 | * Author: Andy Green <andy@openmoko.com> |
| 4 | * |
| 5 | * Configuation settings for the OPENMOKO Neo GTA02 Linux GSM phone |
| 6 | * |
| 7 | * This program is free software; you can redistribute it and/or |
| 8 | * modify it under the terms of the GNU General Public License as |
| 9 | * published by the Free Software Foundation; either version 2 of |
| 10 | * the License, or (at your option) any later version. |
| 11 | * |
| 12 | * This program is distributed in the hope that it will be useful, |
| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 15 | * GNU General Public License for more details. |
| 16 | * |
| 17 | * You should have received a copy of the GNU General Public License |
| 18 | * along with this program; if not, write to the Free Software |
| 19 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, |
| 20 | * MA 02111-1307 USA |
| 21 | * |
| 22 | */ |
| 23 | |
| 24 | #include <qi.h> |
| 25 | #include <neo_gta01.h> |
| 26 | #include <serial-s3c24xx.h> |
| 27 | #include <ports-s3c24xx.h> |
| 28 | #include <s3c24xx-mci.h> |
| 29 | #include <i2c-bitbang-s3c24xx.h> |
| 30 | #include <pcf50606.h> |
| 31 | |
| 32 | #define GTA01_DEBUG_UART 0 |
| 33 | #define PCF50606_I2C_ADS 0x08 |
| 34 | |
| 35 | |
| 36 | struct pcf50606_init { |
| 37 | u8 index; |
| 38 | u8 value; |
| 39 | }; |
| 40 | |
| 41 | /* initial register set for PCF50606 in Neo1973 devices */ |
| 42 | const struct pcf50606_init pcf50606_initial_regs[] = { |
| 43 | { PCF50606_REG_OOCS, 0x00 }, |
| 44 | { PCF50606_REG_INT1M, 0x00 }, |
| 45 | { PCF50606_REG_INT2M, 0x00 }, |
| 46 | { PCF50606_REG_INT3M, PCF50606_INT3_TSCPRES }, |
| 47 | { PCF50606_REG_OOCC1, PCF50606_OOCC1_RTCWAK | PCF50606_OOCC1_CHGWAK | |
| 48 | PCF50606_OOCC1_EXTONWAK_HIGH }, |
| 49 | { PCF50606_REG_OOCC2, PCF50606_OOCC2_ONKEYDB_14ms | PCF50606_OOCC2_EXTONDB_14ms }, |
| 50 | { PCF50606_REG_PSSC, 0x00 }, |
| 51 | { PCF50606_REG_PWROKM, 0x00 }, |
| 52 | { PCF50606_REG_DCDC1, 0x18 }, /* GL_1V5: off */ |
| 53 | { PCF50606_REG_DCDC2, 0x00 }, |
| 54 | { PCF50606_REG_DCDC3, 0x00 }, |
| 55 | { PCF50606_REG_DCDC4, 0x30 }, /* 1.25A */ |
| 56 | |
| 57 | { PCF50606_REG_DCDEC1, 0xe8 }, /* IO_3V3: on */ |
| 58 | { PCF50606_REG_DCDEC2, 0x00 }, |
| 59 | |
| 60 | { PCF50606_REG_DCUDC1, 0xc4 }, /* CORE_1V8: 2.1V if PWREN2 = HIGH */ |
| 61 | { PCF50606_REG_DCUDC2, 0x30 }, /* 1.25A current limit */ |
| 62 | |
| 63 | { PCF50606_REG_IOREGC, 0xf8 }, /* CODEC_3V3: on */ |
| 64 | { PCF50606_REG_D1REGC1, 0x16 }, /* BT_3V15: off */ |
| 65 | |
| 66 | { PCF50606_REG_D2REGC1, 0x10 }, /* GL_2V5: off */ |
| 67 | |
| 68 | { PCF50606_REG_D3REGC1, 0xec }, /* STBY_1V8: 2.1V */ |
| 69 | |
| 70 | { PCF50606_REG_LPREGC1, 0xf8 }, /* LCM_3V3: on */ |
| 71 | { PCF50606_REG_LPREGC2, 0x00 }, |
| 72 | |
| 73 | { PCF50606_REG_MBCC1, 0x01 }, /* CHGAPE */ |
| 74 | { PCF50606_REG_MBCC2, 0x00 }, /* unlimited charging */ |
| 75 | { PCF50606_REG_MBCC3, 0x1a }, /* 0.2*Ifast, 4.20V */ |
| 76 | { PCF50606_REG_BBCC, 0x1f }, /* 400uA */ |
| 77 | { PCF50606_REG_ADCC1, 0x00 }, |
| 78 | { PCF50606_REG_ADCC2, 0x00 }, |
| 79 | { PCF50606_REG_ACDC1, 0x86 }, /* ACD thresh 1.6V, enabled */ |
| 80 | { PCF50606_REG_BVMC, PCF50606_BVMC_THRSHLD_3V3 }, |
| 81 | { PCF50606_REG_PWMC1, 0x00 }, |
| 82 | { PCF50606_REG_LEDC1, 0x00 }, |
| 83 | { PCF50606_REG_LEDC2, 0x00 }, |
| 84 | { PCF50606_REG_GPOC1, 0x00 }, |
| 85 | { PCF50606_REG_GPOC2, 0x00 }, |
| 86 | { PCF50606_REG_GPOC3, 0x00 }, |
| 87 | { PCF50606_REG_GPOC4, 0x00 }, |
| 88 | { PCF50606_REG_GPOC5, 0x00 }, |
| 89 | }; |
| 90 | |
| 91 | |
| 92 | static const struct board_variant board_variants[] = { |
| 93 | [0] = { |
| 94 | .name = "Bv4", |
| 95 | .machine_revision = 0x240, |
| 96 | } |
| 97 | }; |
| 98 | |
| 99 | |
| 100 | void port_init_gta01(void) |
| 101 | { |
| 102 | int n; |
| 103 | unsigned int * MPLLCON = (unsigned int *)0x4c000004; |
| 104 | |
| 105 | rGPACON = 0x005E0FFF; |
| 106 | rGPADAT = 0x00010000; /* nNAND_WP set high */ |
| 107 | |
| 108 | rGPBCON = 0x00045455; |
| 109 | rGPBUP = 0x000007FF; |
| 110 | rGPBDAT = 0x00000004; /* SD-card pwr off */ |
| 111 | |
| 112 | rGPCCON = 0xAAAA12A9; |
| 113 | rGPCUP = 0x0000FFFF; |
| 114 | |
| 115 | rGPDCON = 0xAAAAAAAA; |
| 116 | rGPDUP = 0x0000FFFF; |
| 117 | |
| 118 | rGPECON = 0xAAAAAAAA; |
| 119 | rGPEUP = 0x0000FFFF; |
| 120 | |
| 121 | rGPFCON = 0x0000aa99; |
| 122 | rGPFUP = 0x000000FF; |
| 123 | rGPFDAT = 0x00000004; |
| 124 | |
| 125 | rGPGCON = 0xFF14F0F8; |
| 126 | rGPGUP = 0x0000AFEF; |
| 127 | |
| 128 | rGPHCON = 0x0000FAAA; |
| 129 | rGPHUP = 0x000007FF; |
| 130 | |
| 131 | |
| 132 | /* Load PMU with safe values */ |
| 133 | |
| 134 | for (n = 0; n < ARRAY_SIZE(pcf50606_initial_regs); n++) |
| 135 | i2c_write_sync(&bb_s3c24xx, PCF50606_I2C_ADS, |
| 136 | pcf50606_initial_regs[n].index, |
| 137 | pcf50606_initial_regs[n].value); |
| 138 | |
| 139 | /* Give a short vibrate notification */ |
| 140 | rGPBDAT |= (1 << 3); |
| 141 | udelay(1000000); |
| 142 | rGPBDAT &= ~(1 << 3); |
| 143 | |
| 144 | |
| 145 | /* change CPU to 266MHz 1:2:4 */ |
| 146 | *MPLLCON = ((0x7d << 12) + (0x1 << 4) + 0x1); |
| 147 | /* Delay after update of PLL: Page 7-19, seven nops */ |
| 148 | asm __volatile__ ( |
| 149 | "nop\n" |
| 150 | "nop\n" |
| 151 | "nop\n" |
| 152 | "nop\n" |
| 153 | "nop\n" |
| 154 | "nop\n" |
| 155 | "nop\n" |
| 156 | ); |
| 157 | |
| 158 | |
| 159 | /* set debug UART working at 115kbps */ |
| 160 | serial_init_115200_s3c24xx(GTA01_DEBUG_UART, 66 /* 66.5MHz PCLK */); |
| 161 | } |
| 162 | |
| 163 | |
| 164 | int sd_card_init_gta01(void) |
| 165 | { |
| 166 | int retval = -1; |
| 167 | |
| 168 | /* Check if AUX is held. Then skip SD-card kernels! |
| 169 | * FIXME: This would be nicer to do with an API. |
| 170 | */ |
| 171 | if (!(rGPFDAT & (1 << 6))) { |
| 172 | return -1; |
| 173 | } |
| 174 | |
| 175 | /* if SD card inserted, power it up and initialize*/ |
| 176 | if (!(rGPFDAT & (1 << 5))) |
| 177 | { |
| 178 | rGPBDAT &= ~(1 << 2); |
| 179 | retval = s3c24xx_mmc_init(1); |
| 180 | } |
| 181 | return retval; |
| 182 | } |
| 183 | |
| 184 | int sd_card_block_read_gta01(unsigned char * buf, unsigned long start512, |
| 185 | int blocks512) |
| 186 | { |
| 187 | return s3c24xx_mmc_bread(0, start512, blocks512, buf); |
| 188 | } |
| 189 | |
| 190 | int is_this_board_gta01(void) |
| 191 | { |
| 192 | /* FIXME: How to check for GTA01 ? */ |
| 193 | return 1; |
| 194 | } |
| 195 | |
| 196 | const struct board_variant const * get_board_variant_gta01(void) |
| 197 | { |
| 198 | return &board_variants[0]; |
| 199 | } |
| 200 | |
| 201 | static __attribute__ (( section (".steppingstone") )) void putc_gta01(char c) |
| 202 | { |
| 203 | serial_putc_s3c24xx(GTA01_DEBUG_UART, c); |
| 204 | } |
| 205 | |
| 206 | static void close_gta01(void) |
| 207 | { |
| 208 | /* set I2C GPIO back to peripheral unit */ |
| 209 | (bb_s3c24xx.close)(); |
| 210 | } |
| 211 | |
| 212 | /* Here we will care only about AUX button as polling for PWR button |
| 213 | * through i2c slows down the boot */ |
| 214 | |
| 215 | static u8 get_ui_keys_gta01(void) |
| 216 | { |
| 217 | u8 keys; |
| 218 | u8 ret = 0; |
| 219 | static u8 old_keys = 0; /* previous state for debounce */ |
| 220 | static u8 older_keys = 0; /* previous debounced output for edge detect */ |
| 221 | |
| 222 | /* GPF6 is AUX on GTA01, map to UI_ACTION_SKIPKERNEL, down = 0 */ |
| 223 | keys = ! (rGPFDAT & (1 << 6)); |
| 224 | |
| 225 | /* edge action */ |
| 226 | if ((old_keys & 1) && !(older_keys & 1)) |
| 227 | ret |= UI_ACTION_SKIPKERNEL; |
| 228 | |
| 229 | older_keys = old_keys; |
| 230 | old_keys = keys; |
| 231 | |
| 232 | return ret; |
| 233 | } |
| 234 | |
| 235 | static u8 get_ui_debug_gta01(void) |
| 236 | { |
| 237 | /* PWR button state can be seen in OOCS b0, down = 0, map to UI_ACTION_ADD_DEBUG */ |
| 238 | return !(i2c_read_sync(&bb_s3c24xx, PCF50606_I2C_ADS, PCF50606_REG_OOCS) & 1); |
| 239 | } |
| 240 | |
| 241 | /* |
| 242 | * API for bootloader on this machine |
| 243 | */ |
| 244 | |
| 245 | const struct board_api board_api_gta01 = { |
| 246 | .name = "Neo1973 GTA01", |
| 247 | .linux_machine_id = 1182, |
| 248 | .linux_mem_start = 0x30000000, |
| 249 | .linux_mem_size = (128 * 1024 * 1024), |
| 250 | .linux_tag_placement = 0x30000000 + 0x100, |
| 251 | .get_board_variant = get_board_variant_gta01, |
| 252 | .is_this_board = is_this_board_gta01, |
| 253 | .port_init = port_init_gta01, |
| 254 | .putc = putc_gta01, |
| 255 | .close = close_gta01, |
| 256 | .get_ui_keys = get_ui_keys_gta01, |
| 257 | .get_ui_debug = get_ui_debug_gta01, |
| 258 | |
| 259 | .commandline_board = "mtdparts=" |
| 260 | "neo1973-nand:" |
| 261 | "0x00040000(qi)," |
| 262 | "0x00004000(u-boot_env)," |
| 263 | "0x00200000(kernel)," |
| 264 | "0x000a0000(splash)," |
| 265 | "0x03d1c000(rootfs) " |
| 266 | "loglevel=4 " |
| 267 | "console=tty0 " |
| 268 | "console=ttySAC0,115200 " |
| 269 | "init=/sbin/init " |
| 270 | "ro ", |
| 271 | .commandline_board_debug = " loglevel=8 ", |
| 272 | .noboot = "boot/noboot-GTA01", |
| 273 | .append = "boot/append-GTA01", |
| 274 | /* these are the ways we could boot GTA01 in order to try */ |
| 275 | .kernel_source = { |
| 276 | [0] = { |
| 277 | .name = "SD Card EXT2 Kernel p1", |
| 278 | .block_init = sd_card_init_gta01, |
| 279 | .block_read = sd_card_block_read_gta01, |
| 280 | .partition_index = 1, |
| 281 | .filesystem = FS_EXT2, |
| 282 | .filepath = "boot/uImage-GTA01.bin", |
| 283 | .commandline_append = "root=/dev/mmcblk0p1 rootdelay=1 ", |
| 284 | }, |
| 285 | [1] = { |
| 286 | .name = "SD Card EXT2 Kernel p2", |
| 287 | .block_init = sd_card_init_gta01, |
| 288 | .block_read = sd_card_block_read_gta01, |
| 289 | .partition_index = 2, |
| 290 | .filesystem = FS_EXT2, |
| 291 | .filepath = "boot/uImage-GTA01.bin", |
| 292 | .commandline_append = "root=/dev/mmcblk0p2 rootdelay=1 ", |
| 293 | }, |
| 294 | [2] = { |
| 295 | .name = "SD Card EXT2 Kernel p3", |
| 296 | .block_init = sd_card_init_gta01, |
| 297 | .block_read = sd_card_block_read_gta01, |
| 298 | .partition_index = 3, |
| 299 | .filesystem = FS_EXT2, |
| 300 | .filepath = "boot/uImage-GTA01.bin", |
| 301 | .commandline_append = "root=/dev/mmcblk0p3 rootdelay=1 ", |
| 302 | }, |
| 303 | [3] = { |
| 304 | .name = "NAND Kernel", |
| 305 | .block_read = nand_read_ll, |
| 306 | .offset_blocks512_if_no_partition = 0x44000 / 512, |
| 307 | .filesystem = FS_RAW, |
| 308 | .commandline_append = "rootfstype=jffs2 " |
| 309 | "root=/dev/mtdblock4 ", |
| 310 | }, |
| 311 | }, |
| 312 | }; |
| 313 | |
