Jagannadha Sutradharudu Teki | 4d5e29a | 2013-08-29 19:01:56 +0530 | [diff] [blame] | 1 | /* |
| 2 | * SPI flash probing |
| 3 | * |
| 4 | * Copyright (C) 2008 Atmel Corporation |
| 5 | * Copyright (C) 2010 Reinhard Meyer, EMK Elektronik |
| 6 | * Copyright (C) 2013 Jagannadha Sutradharudu Teki, Xilinx Inc. |
| 7 | * |
Jagannadha Sutradharudu Teki | 0c88a84 | 2013-10-10 22:32:55 +0530 | [diff] [blame] | 8 | * SPDX-License-Identifier: GPL-2.0+ |
Jagannadha Sutradharudu Teki | 4d5e29a | 2013-08-29 19:01:56 +0530 | [diff] [blame] | 9 | */ |
| 10 | |
| 11 | #include <common.h> |
| 12 | #include <fdtdec.h> |
| 13 | #include <malloc.h> |
| 14 | #include <spi.h> |
| 15 | #include <spi_flash.h> |
Mike Frysinger | ffdb20b | 2013-12-03 16:43:27 -0700 | [diff] [blame] | 16 | #include <asm/io.h> |
Jagannadha Sutradharudu Teki | 4d5e29a | 2013-08-29 19:01:56 +0530 | [diff] [blame] | 17 | |
Jagannadha Sutradharudu Teki | 898e76c | 2013-09-26 16:00:15 +0530 | [diff] [blame] | 18 | #include "sf_internal.h" |
Jagannadha Sutradharudu Teki | 4d5e29a | 2013-08-29 19:01:56 +0530 | [diff] [blame] | 19 | |
| 20 | DECLARE_GLOBAL_DATA_PTR; |
| 21 | |
Jagannadha Sutradharudu Teki | a5e8199 | 2013-10-02 19:38:49 +0530 | [diff] [blame] | 22 | /** |
Jagannadha Sutradharudu Teki | 4d4ec99 | 2013-09-24 16:01:23 +0530 | [diff] [blame] | 23 | * struct spi_flash_params - SPI/QSPI flash device params structure |
| 24 | * |
| 25 | * @name: Device name ([MANUFLETTER][DEVTYPE][DENSITY][EXTRAINFO]) |
| 26 | * @jedec: Device jedec ID (0x[1byte_manuf_id][2byte_dev_id]) |
| 27 | * @ext_jedec: Device ext_jedec ID |
| 28 | * @sector_size: Sector size of this device |
Jagannadha Sutradharudu Teki | 469146c | 2013-10-10 22:14:09 +0530 | [diff] [blame] | 29 | * @nr_sectors: No.of sectors on this device |
Jagannadha Sutradharudu Teki | 4e09cc1 | 2014-01-11 15:10:28 +0530 | [diff] [blame^] | 30 | * @e_rd_cmd: Enum list for read commands |
Jagannadha Sutradharudu Teki | 10ca45d | 2013-10-02 19:34:53 +0530 | [diff] [blame] | 31 | * @flags: Importent param, for flash specific behaviour |
Jagannadha Sutradharudu Teki | 4d4ec99 | 2013-09-24 16:01:23 +0530 | [diff] [blame] | 32 | */ |
| 33 | struct spi_flash_params { |
| 34 | const char *name; |
| 35 | u32 jedec; |
| 36 | u16 ext_jedec; |
| 37 | u32 sector_size; |
| 38 | u32 nr_sectors; |
Jagannadha Sutradharudu Teki | 4e09cc1 | 2014-01-11 15:10:28 +0530 | [diff] [blame^] | 39 | u8 e_rd_cmd; |
Jagannadha Sutradharudu Teki | 10ca45d | 2013-10-02 19:34:53 +0530 | [diff] [blame] | 40 | u16 flags; |
Jagannadha Sutradharudu Teki | 4d4ec99 | 2013-09-24 16:01:23 +0530 | [diff] [blame] | 41 | }; |
| 42 | |
| 43 | static const struct spi_flash_params spi_flash_params_table[] = { |
Jagannadha Sutradharudu Teki | a74db0a | 2013-08-06 20:01:08 +0530 | [diff] [blame] | 44 | #ifdef CONFIG_SPI_FLASH_ATMEL /* ATMEL */ |
Jagannadha Sutradharudu Teki | 4e09cc1 | 2014-01-11 15:10:28 +0530 | [diff] [blame^] | 45 | {"AT45DB011D", 0x1f2200, 0x0, 64 * 1024, 4, 0, SECT_4K}, |
| 46 | {"AT45DB021D", 0x1f2300, 0x0, 64 * 1024, 8, 0, SECT_4K}, |
| 47 | {"AT45DB041D", 0x1f2400, 0x0, 64 * 1024, 8, 0, SECT_4K}, |
| 48 | {"AT45DB081D", 0x1f2500, 0x0, 64 * 1024, 16, 0, SECT_4K}, |
| 49 | {"AT45DB161D", 0x1f2600, 0x0, 64 * 1024, 32, 0, SECT_4K}, |
| 50 | {"AT45DB321D", 0x1f2700, 0x0, 64 * 1024, 64, 0, SECT_4K}, |
| 51 | {"AT45DB641D", 0x1f2800, 0x0, 64 * 1024, 128, 0, SECT_4K}, |
| 52 | {"AT25DF321", 0x1f4701, 0x0, 64 * 1024, 64, 0, SECT_4K}, |
Jagannadha Sutradharudu Teki | a74db0a | 2013-08-06 20:01:08 +0530 | [diff] [blame] | 53 | #endif |
Jagannadha Sutradharudu Teki | 0d7663f | 2013-08-06 20:00:00 +0530 | [diff] [blame] | 54 | #ifdef CONFIG_SPI_FLASH_EON /* EON */ |
Jagannadha Sutradharudu Teki | 4e09cc1 | 2014-01-11 15:10:28 +0530 | [diff] [blame^] | 55 | {"EN25Q32B", 0x1c3016, 0x0, 64 * 1024, 64, 0, 0}, |
| 56 | {"EN25Q64", 0x1c3017, 0x0, 64 * 1024, 128, 0, SECT_4K}, |
| 57 | {"EN25Q128B", 0x1c3018, 0x0, 64 * 1024, 256, 0, 0}, |
| 58 | {"EN25S64", 0x1c3817, 0x0, 64 * 1024, 128, 0, 0}, |
Jagannadha Sutradharudu Teki | 0d7663f | 2013-08-06 20:00:00 +0530 | [diff] [blame] | 59 | #endif |
Jagannadha Sutradharudu Teki | 18500e2 | 2013-08-05 16:20:27 +0530 | [diff] [blame] | 60 | #ifdef CONFIG_SPI_FLASH_GIGADEVICE /* GIGADEVICE */ |
Jagannadha Sutradharudu Teki | 4e09cc1 | 2014-01-11 15:10:28 +0530 | [diff] [blame^] | 61 | {"GD25Q64B", 0xc84017, 0x0, 64 * 1024, 128, 0, SECT_4K}, |
| 62 | {"GD25LQ32", 0xc86016, 0x0, 64 * 1024, 64, 0, SECT_4K}, |
Jagannadha Sutradharudu Teki | 18500e2 | 2013-08-05 16:20:27 +0530 | [diff] [blame] | 63 | #endif |
Jagannadha Sutradharudu Teki | db7e258 | 2013-08-05 17:26:16 +0530 | [diff] [blame] | 64 | #ifdef CONFIG_SPI_FLASH_MACRONIX /* MACRONIX */ |
Jagannadha Sutradharudu Teki | 4e09cc1 | 2014-01-11 15:10:28 +0530 | [diff] [blame^] | 65 | {"MX25L2006E", 0xc22012, 0x0, 64 * 1024, 4, 0, 0}, |
| 66 | {"MX25L4005", 0xc22013, 0x0, 64 * 1024, 8, 0, 0}, |
| 67 | {"MX25L8005", 0xc22014, 0x0, 64 * 1024, 16, 0, 0}, |
| 68 | {"MX25L1605D", 0xc22015, 0x0, 64 * 1024, 32, 0, 0}, |
| 69 | {"MX25L3205D", 0xc22016, 0x0, 64 * 1024, 64, 0, 0}, |
| 70 | {"MX25L6405D", 0xc22017, 0x0, 64 * 1024, 128, 0, 0}, |
| 71 | {"MX25L12805", 0xc22018, 0x0, 64 * 1024, 256, 0, 0}, |
| 72 | {"MX25L25635F", 0xc22019, 0x0, 64 * 1024, 512, 0, 0}, |
| 73 | {"MX25L51235F", 0xc2201a, 0x0, 64 * 1024, 1024, 0, 0}, |
| 74 | {"MX25L12855E", 0xc22618, 0x0, 64 * 1024, 256, 0, 0}, |
Jagannadha Sutradharudu Teki | db7e258 | 2013-08-05 17:26:16 +0530 | [diff] [blame] | 75 | #endif |
Jagannadha Sutradharudu Teki | 74bec16 | 2013-09-28 16:49:37 +0530 | [diff] [blame] | 76 | #ifdef CONFIG_SPI_FLASH_SPANSION /* SPANSION */ |
Jagannadha Sutradharudu Teki | 4e09cc1 | 2014-01-11 15:10:28 +0530 | [diff] [blame^] | 77 | {"S25FL008A", 0x010213, 0x0, 64 * 1024, 16, 0, 0}, |
| 78 | {"S25FL016A", 0x010214, 0x0, 64 * 1024, 32, 0, 0}, |
| 79 | {"S25FL032A", 0x010215, 0x0, 64 * 1024, 64, 0, 0}, |
| 80 | {"S25FL064A", 0x010216, 0x0, 64 * 1024, 128, 0, 0}, |
| 81 | {"S25FL128P_256K", 0x012018, 0x0300, 256 * 1024, 64, 0, 0}, |
| 82 | {"S25FL128P_64K", 0x012018, 0x0301, 64 * 1024, 256, 0, 0}, |
| 83 | {"S25FL032P", 0x010215, 0x4d00, 64 * 1024, 64, 0, 0}, |
| 84 | {"S25FL064P", 0x010216, 0x4d00, 64 * 1024, 128, 0, 0}, |
| 85 | {"S25FL128S_64K", 0x012018, 0x4d01, 64 * 1024, 256, 0, 0}, |
| 86 | {"S25FL256S_256K", 0x010219, 0x4d00, 64 * 1024, 512, RD_EXTN, 0}, |
| 87 | {"S25FL256S_64K", 0x010219, 0x4d01, 64 * 1024, 512, RD_EXTN, 0}, |
| 88 | {"S25FL512S_256K", 0x010220, 0x4d00, 64 * 1024, 1024, 0, 0}, |
| 89 | {"S25FL512S_64K", 0x010220, 0x4d01, 64 * 1024, 1024, 0, 0}, |
Jagannadha Sutradharudu Teki | 74bec16 | 2013-09-28 16:49:37 +0530 | [diff] [blame] | 90 | #endif |
Jagannadha Sutradharudu Teki | 4d4ec99 | 2013-09-24 16:01:23 +0530 | [diff] [blame] | 91 | #ifdef CONFIG_SPI_FLASH_STMICRO /* STMICRO */ |
Jagannadha Sutradharudu Teki | 4e09cc1 | 2014-01-11 15:10:28 +0530 | [diff] [blame^] | 92 | {"M25P10", 0x202011, 0x0, 32 * 1024, 4, 0, 0}, |
| 93 | {"M25P20", 0x202012, 0x0, 64 * 1024, 4, 0, 0}, |
| 94 | {"M25P40", 0x202013, 0x0, 64 * 1024, 8, 0, 0}, |
| 95 | {"M25P80", 0x202014, 0x0, 64 * 1024, 16, 0, 0}, |
| 96 | {"M25P16", 0x202015, 0x0, 64 * 1024, 32, 0, 0}, |
| 97 | {"M25P32", 0x202016, 0x0, 64 * 1024, 64, 0, 0}, |
| 98 | {"M25P64", 0x202017, 0x0, 64 * 1024, 128, 0, 0}, |
| 99 | {"M25P128", 0x202018, 0x0, 256 * 1024, 64, 0, 0}, |
| 100 | {"N25Q32", 0x20ba16, 0x0, 64 * 1024, 64, 0, SECT_4K}, |
| 101 | {"N25Q32A", 0x20bb16, 0x0, 64 * 1024, 64, 0, SECT_4K}, |
| 102 | {"N25Q64", 0x20ba17, 0x0, 64 * 1024, 128, 0, SECT_4K}, |
| 103 | {"N25Q64A", 0x20bb17, 0x0, 64 * 1024, 128, 0, SECT_4K}, |
| 104 | {"N25Q128", 0x20ba18, 0x0, 64 * 1024, 256, 0, SECT_4K}, |
| 105 | {"N25Q128A", 0x20bb18, 0x0, 64 * 1024, 256, 0, SECT_4K}, |
| 106 | {"N25Q256", 0x20ba19, 0x0, 64 * 1024, 512, 0, SECT_4K}, |
| 107 | {"N25Q256A", 0x20bb19, 0x0, 64 * 1024, 512, 0, SECT_4K}, |
| 108 | {"N25Q512", 0x20ba20, 0x0, 64 * 1024, 1024, 0, E_FSR | SECT_4K}, |
| 109 | {"N25Q512A", 0x20bb20, 0x0, 64 * 1024, 1024, 0, E_FSR | SECT_4K}, |
| 110 | {"N25Q1024", 0x20ba21, 0x0, 64 * 1024, 2048, 0, E_FSR | SECT_4K}, |
| 111 | {"N25Q1024A", 0x20bb21, 0x0, 64 * 1024, 2048, 0, E_FSR | SECT_4K}, |
Jagannadha Sutradharudu Teki | 4d4ec99 | 2013-09-24 16:01:23 +0530 | [diff] [blame] | 112 | #endif |
Jagannadha Sutradharudu Teki | 26dcc54 | 2013-08-05 17:36:02 +0530 | [diff] [blame] | 113 | #ifdef CONFIG_SPI_FLASH_SST /* SST */ |
Jagannadha Sutradharudu Teki | 4e09cc1 | 2014-01-11 15:10:28 +0530 | [diff] [blame^] | 114 | {"SST25VF040B", 0xbf258d, 0x0, 64 * 1024, 8, 0, SECT_4K | SST_WP}, |
| 115 | {"SST25VF080B", 0xbf258e, 0x0, 64 * 1024, 16, 0, SECT_4K | SST_WP}, |
| 116 | {"SST25VF016B", 0xbf2541, 0x0, 64 * 1024, 32, 0, SECT_4K | SST_WP}, |
| 117 | {"SST25VF032B", 0xbf254a, 0x0, 64 * 1024, 64, 0, SECT_4K | SST_WP}, |
| 118 | {"SST25VF064C", 0xbf254b, 0x0, 64 * 1024, 128, 0, SECT_4K}, |
| 119 | {"SST25WF512", 0xbf2501, 0x0, 64 * 1024, 1, 0, SECT_4K | SST_WP}, |
| 120 | {"SST25WF010", 0xbf2502, 0x0, 64 * 1024, 2, 0, SECT_4K | SST_WP}, |
| 121 | {"SST25WF020", 0xbf2503, 0x0, 64 * 1024, 4, 0, SECT_4K | SST_WP}, |
| 122 | {"SST25WF040", 0xbf2504, 0x0, 64 * 1024, 8, 0, SECT_4K | SST_WP}, |
| 123 | {"SST25WF080", 0xbf2505, 0x0, 64 * 1024, 16, 0, SECT_4K | SST_WP}, |
Jagannadha Sutradharudu Teki | 26dcc54 | 2013-08-05 17:36:02 +0530 | [diff] [blame] | 124 | #endif |
Jagannadha Sutradharudu Teki | 80701e5 | 2013-09-28 16:57:56 +0530 | [diff] [blame] | 125 | #ifdef CONFIG_SPI_FLASH_WINBOND /* WINBOND */ |
Jagannadha Sutradharudu Teki | 4e09cc1 | 2014-01-11 15:10:28 +0530 | [diff] [blame^] | 126 | {"W25P80", 0xef2014, 0x0, 64 * 1024, 16, 0, 0}, |
| 127 | {"W25P16", 0xef2015, 0x0, 64 * 1024, 32, 0, 0}, |
| 128 | {"W25P32", 0xef2016, 0x0, 64 * 1024, 64, 0, 0}, |
| 129 | {"W25X40", 0xef3013, 0x0, 64 * 1024, 8, 0, SECT_4K}, |
| 130 | {"W25X16", 0xef3015, 0x0, 64 * 1024, 32, 0, SECT_4K}, |
| 131 | {"W25X32", 0xef3016, 0x0, 64 * 1024, 64, 0, SECT_4K}, |
| 132 | {"W25X64", 0xef3017, 0x0, 64 * 1024, 128, 0, SECT_4K}, |
| 133 | {"W25Q80BL", 0xef4014, 0x0, 64 * 1024, 16, 0, SECT_4K}, |
| 134 | {"W25Q16CL", 0xef4015, 0x0, 64 * 1024, 32, 0, SECT_4K}, |
| 135 | {"W25Q32BV", 0xef4016, 0x0, 64 * 1024, 64, 0, SECT_4K}, |
| 136 | {"W25Q64CV", 0xef4017, 0x0, 64 * 1024, 128, 0, SECT_4K}, |
| 137 | {"W25Q128BV", 0xef4018, 0x0, 64 * 1024, 256, 0, SECT_4K}, |
| 138 | {"W25Q256", 0xef4019, 0x0, 64 * 1024, 512, 0, SECT_4K}, |
| 139 | {"W25Q80BW", 0xef5014, 0x0, 64 * 1024, 16, 0, SECT_4K}, |
| 140 | {"W25Q16DW", 0xef6015, 0x0, 64 * 1024, 32, 0, SECT_4K}, |
| 141 | {"W25Q32DW", 0xef6016, 0x0, 64 * 1024, 64, 0, SECT_4K}, |
| 142 | {"W25Q64DW", 0xef6017, 0x0, 64 * 1024, 128, 0, SECT_4K}, |
| 143 | {"W25Q128FW", 0xef6018, 0x0, 64 * 1024, 256, 0, SECT_4K}, |
Jagannadha Sutradharudu Teki | 80701e5 | 2013-09-28 16:57:56 +0530 | [diff] [blame] | 144 | #endif |
| 145 | /* |
| 146 | * Note: |
Jagannadha Sutradharudu Teki | 469146c | 2013-10-10 22:14:09 +0530 | [diff] [blame] | 147 | * Below paired flash devices has similar spi_flash params. |
Jagannadha Sutradharudu Teki | 74bec16 | 2013-09-28 16:49:37 +0530 | [diff] [blame] | 148 | * (S25FL129P_64K, S25FL128S_64K) |
Jagannadha Sutradharudu Teki | 80701e5 | 2013-09-28 16:57:56 +0530 | [diff] [blame] | 149 | * (W25Q80BL, W25Q80BV) |
| 150 | * (W25Q16CL, W25Q16DV) |
| 151 | * (W25Q32BV, W25Q32FV_SPI) |
| 152 | * (W25Q64CV, W25Q64FV_SPI) |
| 153 | * (W25Q128BV, W25Q128FV_SPI) |
| 154 | * (W25Q32DW, W25Q32FV_QPI) |
| 155 | * (W25Q64DW, W25Q64FV_QPI) |
| 156 | * (W25Q128FW, W25Q128FV_QPI) |
| 157 | */ |
Jagannadha Sutradharudu Teki | 4d4ec99 | 2013-09-24 16:01:23 +0530 | [diff] [blame] | 158 | }; |
| 159 | |
Jagannadha Sutradharudu Teki | 4e09cc1 | 2014-01-11 15:10:28 +0530 | [diff] [blame^] | 160 | /* Read commands array */ |
| 161 | static u8 spi_read_cmds_array[] = { |
| 162 | CMD_READ_ARRAY_SLOW, |
| 163 | CMD_READ_DUAL_OUTPUT_FAST, |
| 164 | CMD_READ_DUAL_IO_FAST, |
| 165 | }; |
| 166 | |
Jagannadha Sutradharudu Teki | ce22b92 | 2013-10-07 19:34:56 +0530 | [diff] [blame] | 167 | static struct spi_flash *spi_flash_validate_params(struct spi_slave *spi, |
| 168 | u8 *idcode) |
Jagannadha Sutradharudu Teki | 4d4ec99 | 2013-09-24 16:01:23 +0530 | [diff] [blame] | 169 | { |
| 170 | const struct spi_flash_params *params; |
| 171 | struct spi_flash *flash; |
| 172 | int i; |
Jagannadha Sutradharudu Teki | 4e09cc1 | 2014-01-11 15:10:28 +0530 | [diff] [blame^] | 173 | u8 cmd; |
Jagannadha Sutradharudu Teki | 4d4ec99 | 2013-09-24 16:01:23 +0530 | [diff] [blame] | 174 | u16 jedec = idcode[1] << 8 | idcode[2]; |
Jagannadha Sutradharudu Teki | 74bec16 | 2013-09-28 16:49:37 +0530 | [diff] [blame] | 175 | u16 ext_jedec = idcode[3] << 8 | idcode[4]; |
Jagannadha Sutradharudu Teki | 4d4ec99 | 2013-09-24 16:01:23 +0530 | [diff] [blame] | 176 | |
Jagannadha Sutradharudu Teki | 74bec16 | 2013-09-28 16:49:37 +0530 | [diff] [blame] | 177 | /* Get the flash id (jedec = manuf_id + dev_id, ext_jedec) */ |
Jagannadha Sutradharudu Teki | 4d4ec99 | 2013-09-24 16:01:23 +0530 | [diff] [blame] | 178 | for (i = 0; i < ARRAY_SIZE(spi_flash_params_table); i++) { |
| 179 | params = &spi_flash_params_table[i]; |
| 180 | if ((params->jedec >> 16) == idcode[0]) { |
Jagannadha Sutradharudu Teki | 74bec16 | 2013-09-28 16:49:37 +0530 | [diff] [blame] | 181 | if ((params->jedec & 0xFFFF) == jedec) { |
| 182 | if (params->ext_jedec == 0) |
| 183 | break; |
| 184 | else if (params->ext_jedec == ext_jedec) |
| 185 | break; |
| 186 | } |
Jagannadha Sutradharudu Teki | 4d4ec99 | 2013-09-24 16:01:23 +0530 | [diff] [blame] | 187 | } |
| 188 | } |
| 189 | |
| 190 | if (i == ARRAY_SIZE(spi_flash_params_table)) { |
Jagannadha Sutradharudu Teki | 74bec16 | 2013-09-28 16:49:37 +0530 | [diff] [blame] | 191 | printf("SF: Unsupported flash IDs: "); |
| 192 | printf("manuf %02x, jedec %04x, ext_jedec %04x\n", |
| 193 | idcode[0], jedec, ext_jedec); |
Jagannadha Sutradharudu Teki | 4d4ec99 | 2013-09-24 16:01:23 +0530 | [diff] [blame] | 194 | return NULL; |
| 195 | } |
| 196 | |
| 197 | flash = malloc(sizeof(*flash)); |
| 198 | if (!flash) { |
| 199 | debug("SF: Failed to allocate spi_flash\n"); |
| 200 | return NULL; |
| 201 | } |
| 202 | memset(flash, '\0', sizeof(*flash)); |
| 203 | |
Jagannadha Sutradharudu Teki | 469146c | 2013-10-10 22:14:09 +0530 | [diff] [blame] | 204 | /* Assign spi data */ |
Jagannadha Sutradharudu Teki | 4d4ec99 | 2013-09-24 16:01:23 +0530 | [diff] [blame] | 205 | flash->spi = spi; |
| 206 | flash->name = params->name; |
Jagannadha Sutradharudu Teki | ce22b92 | 2013-10-07 19:34:56 +0530 | [diff] [blame] | 207 | flash->memory_map = spi->memory_map; |
Jagannadha Sutradharudu Teki | 4d4ec99 | 2013-09-24 16:01:23 +0530 | [diff] [blame] | 208 | |
| 209 | /* Assign spi_flash ops */ |
Jagannadha Sutradharudu Teki | a5e8199 | 2013-10-02 19:38:49 +0530 | [diff] [blame] | 210 | flash->write = spi_flash_cmd_write_ops; |
Jagannadha Sutradharudu Teki | 10ca45d | 2013-10-02 19:34:53 +0530 | [diff] [blame] | 211 | #ifdef CONFIG_SPI_FLASH_SST |
| 212 | if (params->flags & SST_WP) |
| 213 | flash->write = sst_write_wp; |
| 214 | #endif |
Jagannadha Sutradharudu Teki | a5e8199 | 2013-10-02 19:38:49 +0530 | [diff] [blame] | 215 | flash->erase = spi_flash_cmd_erase_ops; |
| 216 | flash->read = spi_flash_cmd_read_ops; |
Jagannadha Sutradharudu Teki | 4d4ec99 | 2013-09-24 16:01:23 +0530 | [diff] [blame] | 217 | |
| 218 | /* Compute the flash size */ |
Jagannadha Sutradharudu Teki | f0be6de | 2013-08-28 12:17:56 +0530 | [diff] [blame] | 219 | flash->page_size = (ext_jedec == 0x4d00) ? 512 : 256; |
Jagannadha Sutradharudu Teki | 4d4ec99 | 2013-09-24 16:01:23 +0530 | [diff] [blame] | 220 | flash->sector_size = params->sector_size; |
| 221 | flash->size = flash->sector_size * params->nr_sectors; |
| 222 | |
Jagannadha Sutradharudu Teki | f4f51a8 | 2013-10-02 19:36:58 +0530 | [diff] [blame] | 223 | /* Compute erase sector and command */ |
| 224 | if (params->flags & SECT_4K) { |
| 225 | flash->erase_cmd = CMD_ERASE_4K; |
| 226 | flash->erase_size = 4096; |
| 227 | } else if (params->flags & SECT_32K) { |
| 228 | flash->erase_cmd = CMD_ERASE_32K; |
| 229 | flash->erase_size = 32768; |
| 230 | } else { |
| 231 | flash->erase_cmd = CMD_ERASE_64K; |
| 232 | flash->erase_size = flash->sector_size; |
| 233 | } |
| 234 | |
Jagannadha Sutradharudu Teki | 4e09cc1 | 2014-01-11 15:10:28 +0530 | [diff] [blame^] | 235 | /* Look for the fastest read cmd */ |
| 236 | cmd = fls(params->e_rd_cmd & flash->spi->op_mode_rx); |
| 237 | if (cmd) { |
| 238 | cmd = spi_read_cmds_array[cmd - 1]; |
| 239 | flash->read_cmd = cmd; |
| 240 | } else { |
| 241 | /* Go for for default supported read cmd */ |
| 242 | flash->read_cmd = CMD_READ_ARRAY_FAST; |
| 243 | } |
| 244 | |
Jagannadha Sutradharudu Teki | 0f62328 | 2013-10-02 19:37:43 +0530 | [diff] [blame] | 245 | /* Poll cmd seclection */ |
| 246 | flash->poll_cmd = CMD_READ_STATUS; |
| 247 | #ifdef CONFIG_SPI_FLASH_STMICRO |
| 248 | if (params->flags & E_FSR) |
| 249 | flash->poll_cmd = CMD_FLAG_STATUS; |
| 250 | #endif |
| 251 | |
Jagannadha Sutradharudu Teki | ce22b92 | 2013-10-07 19:34:56 +0530 | [diff] [blame] | 252 | /* Configure the BAR - discover bank cmds and read current bank */ |
Jagannadha Sutradharudu Teki | 32ebd1a | 2013-09-26 14:24:58 +0530 | [diff] [blame] | 253 | #ifdef CONFIG_SPI_FLASH_BAR |
Jagannadha Sutradharudu Teki | 32ebd1a | 2013-09-26 14:24:58 +0530 | [diff] [blame] | 254 | u8 curr_bank = 0; |
| 255 | if (flash->size > SPI_FLASH_16MB_BOUN) { |
| 256 | flash->bank_read_cmd = (idcode[0] == 0x01) ? |
| 257 | CMD_BANKADDR_BRRD : CMD_EXTNADDR_RDEAR; |
| 258 | flash->bank_write_cmd = (idcode[0] == 0x01) ? |
| 259 | CMD_BANKADDR_BRWR : CMD_EXTNADDR_WREAR; |
| 260 | |
| 261 | if (spi_flash_read_common(flash, &flash->bank_read_cmd, 1, |
| 262 | &curr_bank, 1)) { |
| 263 | debug("SF: fail to read bank addr register\n"); |
| 264 | return NULL; |
| 265 | } |
| 266 | flash->bank_curr = curr_bank; |
| 267 | } else { |
| 268 | flash->bank_curr = curr_bank; |
| 269 | } |
| 270 | #endif |
| 271 | |
Jagannadha Sutradharudu Teki | 54024c1 | 2013-09-26 13:16:45 +0530 | [diff] [blame] | 272 | /* Flash powers up read-only, so clear BP# bits */ |
| 273 | #if defined(CONFIG_SPI_FLASH_ATMEL) || \ |
| 274 | defined(CONFIG_SPI_FLASH_MACRONIX) || \ |
| 275 | defined(CONFIG_SPI_FLASH_SST) |
| 276 | spi_flash_cmd_write_status(flash, 0); |
| 277 | #endif |
| 278 | |
Jagannadha Sutradharudu Teki | 4d4ec99 | 2013-09-24 16:01:23 +0530 | [diff] [blame] | 279 | return flash; |
| 280 | } |
| 281 | |
Jagannadha Sutradharudu Teki | 4d5e29a | 2013-08-29 19:01:56 +0530 | [diff] [blame] | 282 | #ifdef CONFIG_OF_CONTROL |
| 283 | int spi_flash_decode_fdt(const void *blob, struct spi_flash *flash) |
| 284 | { |
| 285 | fdt_addr_t addr; |
| 286 | fdt_size_t size; |
| 287 | int node; |
| 288 | |
| 289 | /* If there is no node, do nothing */ |
| 290 | node = fdtdec_next_compatible(blob, 0, COMPAT_GENERIC_SPI_FLASH); |
| 291 | if (node < 0) |
| 292 | return 0; |
| 293 | |
| 294 | addr = fdtdec_get_addr_size(blob, node, "memory-map", &size); |
| 295 | if (addr == FDT_ADDR_T_NONE) { |
| 296 | debug("%s: Cannot decode address\n", __func__); |
| 297 | return 0; |
| 298 | } |
| 299 | |
| 300 | if (flash->size != size) { |
| 301 | debug("%s: Memory map must cover entire device\n", __func__); |
| 302 | return -1; |
| 303 | } |
Mike Frysinger | ffdb20b | 2013-12-03 16:43:27 -0700 | [diff] [blame] | 304 | flash->memory_map = map_sysmem(addr, size); |
Jagannadha Sutradharudu Teki | 4d5e29a | 2013-08-29 19:01:56 +0530 | [diff] [blame] | 305 | |
| 306 | return 0; |
| 307 | } |
| 308 | #endif /* CONFIG_OF_CONTROL */ |
| 309 | |
Simon Glass | 0efc024 | 2013-12-03 16:43:24 -0700 | [diff] [blame] | 310 | static struct spi_flash *spi_flash_probe_slave(struct spi_slave *spi) |
Jagannadha Sutradharudu Teki | 4d5e29a | 2013-08-29 19:01:56 +0530 | [diff] [blame] | 311 | { |
Jagannadha Sutradharudu Teki | 4d5e29a | 2013-08-29 19:01:56 +0530 | [diff] [blame] | 312 | struct spi_flash *flash = NULL; |
Jagannadha Sutradharudu Teki | 32ebd1a | 2013-09-26 14:24:58 +0530 | [diff] [blame] | 313 | u8 idcode[5]; |
Jagannadha Sutradharudu Teki | 4d4ec99 | 2013-09-24 16:01:23 +0530 | [diff] [blame] | 314 | int ret; |
Jagannadha Sutradharudu Teki | 4d5e29a | 2013-08-29 19:01:56 +0530 | [diff] [blame] | 315 | |
Jagannadha Sutradharudu Teki | 4d4ec99 | 2013-09-24 16:01:23 +0530 | [diff] [blame] | 316 | /* Setup spi_slave */ |
Jagannadha Sutradharudu Teki | 4d5e29a | 2013-08-29 19:01:56 +0530 | [diff] [blame] | 317 | if (!spi) { |
| 318 | printf("SF: Failed to set up slave\n"); |
| 319 | return NULL; |
| 320 | } |
| 321 | |
Jagannadha Sutradharudu Teki | 4d4ec99 | 2013-09-24 16:01:23 +0530 | [diff] [blame] | 322 | /* Claim spi bus */ |
Jagannadha Sutradharudu Teki | 4d5e29a | 2013-08-29 19:01:56 +0530 | [diff] [blame] | 323 | ret = spi_claim_bus(spi); |
| 324 | if (ret) { |
| 325 | debug("SF: Failed to claim SPI bus: %d\n", ret); |
| 326 | goto err_claim_bus; |
| 327 | } |
| 328 | |
| 329 | /* Read the ID codes */ |
| 330 | ret = spi_flash_cmd(spi, CMD_READ_ID, idcode, sizeof(idcode)); |
Jagannadha Sutradharudu Teki | 4d4ec99 | 2013-09-24 16:01:23 +0530 | [diff] [blame] | 331 | if (ret) { |
| 332 | printf("SF: Failed to get idcodes\n"); |
Jagannadha Sutradharudu Teki | 4d5e29a | 2013-08-29 19:01:56 +0530 | [diff] [blame] | 333 | goto err_read_id; |
Jagannadha Sutradharudu Teki | 4d4ec99 | 2013-09-24 16:01:23 +0530 | [diff] [blame] | 334 | } |
Jagannadha Sutradharudu Teki | 4d5e29a | 2013-08-29 19:01:56 +0530 | [diff] [blame] | 335 | |
| 336 | #ifdef DEBUG |
| 337 | printf("SF: Got idcodes\n"); |
| 338 | print_buffer(0, idcode, 1, sizeof(idcode), 0); |
| 339 | #endif |
| 340 | |
Jagannadha Sutradharudu Teki | a5e8199 | 2013-10-02 19:38:49 +0530 | [diff] [blame] | 341 | /* Validate params from spi_flash_params table */ |
| 342 | flash = spi_flash_validate_params(spi, idcode); |
Jagannadha Sutradharudu Teki | 4d4ec99 | 2013-09-24 16:01:23 +0530 | [diff] [blame] | 343 | if (!flash) |
| 344 | goto err_read_id; |
Jagannadha Sutradharudu Teki | 4d5e29a | 2013-08-29 19:01:56 +0530 | [diff] [blame] | 345 | |
Jagannadha Sutradharudu Teki | 4d5e29a | 2013-08-29 19:01:56 +0530 | [diff] [blame] | 346 | #ifdef CONFIG_OF_CONTROL |
| 347 | if (spi_flash_decode_fdt(gd->fdt_blob, flash)) { |
| 348 | debug("SF: FDT decode error\n"); |
Jagannadha Sutradharudu Teki | 4d4ec99 | 2013-09-24 16:01:23 +0530 | [diff] [blame] | 349 | goto err_read_id; |
Jagannadha Sutradharudu Teki | 4d5e29a | 2013-08-29 19:01:56 +0530 | [diff] [blame] | 350 | } |
| 351 | #endif |
| 352 | #ifndef CONFIG_SPL_BUILD |
| 353 | printf("SF: Detected %s with page size ", flash->name); |
Jagannadha Sutradharudu Teki | 3ea708f | 2013-09-15 23:06:12 +0530 | [diff] [blame] | 354 | print_size(flash->page_size, ", erase size "); |
| 355 | print_size(flash->erase_size, ", total "); |
Jagannadha Sutradharudu Teki | 4d5e29a | 2013-08-29 19:01:56 +0530 | [diff] [blame] | 356 | print_size(flash->size, ""); |
| 357 | if (flash->memory_map) |
| 358 | printf(", mapped at %p", flash->memory_map); |
| 359 | puts("\n"); |
| 360 | #endif |
| 361 | #ifndef CONFIG_SPI_FLASH_BAR |
| 362 | if (flash->size > SPI_FLASH_16MB_BOUN) { |
| 363 | puts("SF: Warning - Only lower 16MiB accessible,"); |
| 364 | puts(" Full access #define CONFIG_SPI_FLASH_BAR\n"); |
| 365 | } |
| 366 | #endif |
| 367 | |
Jagannadha Sutradharudu Teki | 4d4ec99 | 2013-09-24 16:01:23 +0530 | [diff] [blame] | 368 | /* Release spi bus */ |
Jagannadha Sutradharudu Teki | 4d5e29a | 2013-08-29 19:01:56 +0530 | [diff] [blame] | 369 | spi_release_bus(spi); |
| 370 | |
| 371 | return flash; |
| 372 | |
Jagannadha Sutradharudu Teki | 4d5e29a | 2013-08-29 19:01:56 +0530 | [diff] [blame] | 373 | err_read_id: |
| 374 | spi_release_bus(spi); |
| 375 | err_claim_bus: |
| 376 | spi_free_slave(spi); |
| 377 | return NULL; |
| 378 | } |
| 379 | |
Simon Glass | 0efc024 | 2013-12-03 16:43:24 -0700 | [diff] [blame] | 380 | struct spi_flash *spi_flash_probe(unsigned int bus, unsigned int cs, |
| 381 | unsigned int max_hz, unsigned int spi_mode) |
| 382 | { |
| 383 | struct spi_slave *spi; |
| 384 | |
| 385 | spi = spi_setup_slave(bus, cs, max_hz, spi_mode); |
| 386 | return spi_flash_probe_slave(spi); |
| 387 | } |
| 388 | |
| 389 | #ifdef CONFIG_OF_SPI_FLASH |
| 390 | struct spi_flash *spi_flash_probe_fdt(const void *blob, int slave_node, |
| 391 | int spi_node) |
| 392 | { |
| 393 | struct spi_slave *spi; |
| 394 | |
| 395 | spi = spi_setup_slave_fdt(blob, slave_node, spi_node); |
| 396 | return spi_flash_probe_slave(spi); |
| 397 | } |
| 398 | #endif |
| 399 | |
Jagannadha Sutradharudu Teki | 4d5e29a | 2013-08-29 19:01:56 +0530 | [diff] [blame] | 400 | void spi_flash_free(struct spi_flash *flash) |
| 401 | { |
| 402 | spi_free_slave(flash->spi); |
| 403 | free(flash); |
| 404 | } |