diff options
Diffstat (limited to 'board')
| -rw-r--r-- | board/amcc/sequoia/cmd_sequoia.c | 205 |
1 files changed, 157 insertions, 48 deletions
diff --git a/board/amcc/sequoia/cmd_sequoia.c b/board/amcc/sequoia/cmd_sequoia.c index 6fc60ea..f3803c0 100644 --- a/board/amcc/sequoia/cmd_sequoia.c +++ b/board/amcc/sequoia/cmd_sequoia.c @@ -26,76 +26,185 @@ #include <command.h> #include <i2c.h> -static u8 boot_533_nor[] = { - 0x87, 0x78, 0x82, 0x52, 0x09, 0x57, 0xa0, 0x30, - 0x40, 0x08, 0x23, 0x50, 0x0d, 0x05, 0x00, 0x00 -}; +/* + * There are 2 versions of production Sequoia & Rainier platforms. + * The primary difference is the reference clock. Those with + * 33333333 reference clocks will also have 667MHz rated + * processors. Not enough differences to have unique clock + * settings. + * + * NOR and NAND boot options change bytes 6, 7, 8, 9, 11. The + * values are independent of the rest of the clock settings. + * + * All Sequoias & Rainiers select from two possible EEPROMs in Boot + * Config F. One for 33MHz PCI, one for 66MHz PCI. The following + * values are for the 33MHz PCI configuration. Byte 5 (0 base) is + * the only value affected for a 66MHz PCI and simply needs a +0x10. + */ + +#define NAND_COMPATIBLE 0x01 +#define NOR_COMPATIBLE 0x02 + +/* check with Stefan on CFG_I2C_EEPROM_ADDR */ +#define I2C_EEPROM_ADDR 0x52 -static u8 boot_533_nand[] = { - 0x87, 0x78, 0x82, 0x52, 0x09, 0x57, 0xd0, 0x10, - 0xa0, 0x68, 0x23, 0x58, 0x0d, 0x05, 0x00, 0x00 +static char *config_labels[] = { + "CPU: 333 PLB: 133 OPB: 66 EBC: 66", + "CPU: 333 PLB: 166 OPB: 83 EBC: 55", + "CPU: 400 PLB: 133 OPB: 66 EBC: 66", + "CPU: 400 PLB: 160 OPB: 80 EBC: 53", + "CPU: 416 PLB: 166 OPB: 83 EBC: 55", + "CPU: 500 PLB: 166 OPB: 83 EBC: 55", + "CPU: 533 PLB: 133 OPB: 66 EBC: 66", + "CPU: 667 PLB: 166 OPB: 83 EBC: 55", + NULL }; -static u8 boot_667_nor[] = { - 0x87, 0x78, 0xa2, 0x52, 0x09, 0xd7, 0xa0, 0x30, - 0x40, 0x08, 0x23, 0x50, 0x0d, 0x05, 0x00, 0x00 +static u8 boot_configs[][17] = { + { + (NOR_COMPATIBLE), + 0x84, 0x70, 0xa2, 0xa6, 0x05, 0x57, 0xa0, 0x10, 0x40, + 0x08, 0x23, 0x50, 0x0d, 0x05, 0x00, 0x00 + }, + { + (NAND_COMPATIBLE | NOR_COMPATIBLE), + 0xc7, 0x78, 0xf3, 0x4e, 0x05, 0xd7, 0xa0, 0x30, 0x40, + 0x08, 0x23, 0x50, 0x0d, 0x05, 0x00, 0x00 + }, + { + (NOR_COMPATIBLE), + 0x86, 0x78, 0xc2, 0xc6, 0x05, 0x57, 0xa0, 0x30, 0x40, + 0x08, 0x23, 0x50, 0x0d, 0x05, 0x00, 0x00 + }, + { + (NOR_COMPATIBLE), + 0x86, 0x78, 0xc2, 0xa6, 0x05, 0xd7, 0xa0, 0x10, 0x40, + 0x08, 0x23, 0x50, 0x0d, 0x05, 0x00, 0x00 + }, + { + (NAND_COMPATIBLE | NOR_COMPATIBLE), + 0xc6, 0x78, 0x52, 0xa6, 0x05, 0xd7, 0xa0, 0x10, 0x40, + 0x08, 0x23, 0x50, 0x0d, 0x05, 0x00, 0x00 + }, + { + (NAND_COMPATIBLE | NOR_COMPATIBLE), + 0xc7, 0x78, 0x52, 0xc6, 0x05, 0xd7, 0xa0, 0x30, 0x40, + 0x08, 0x23, 0x50, 0x0d, 0x05, 0x00, 0x00 + }, + { + (NOR_COMPATIBLE), + 0x87, 0x78, 0x82, 0x52, 0x09, 0x57, 0xa0, 0x30, 0x40, + 0x08, 0x23, 0x50, 0x0d, 0x05, 0x00, 0x00 + }, + { + (NAND_COMPATIBLE | NOR_COMPATIBLE), + 0x87, 0x78, 0xa2, 0x52, 0x09, 0xd7, 0xa0, 0x30, 0x40, + 0x08, 0x23, 0x50, 0x0d, 0x05, 0x00, 0x00 + }, + { + 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 + } }; -static u8 boot_667_nand[] = { - 0x87, 0x78, 0xa2, 0x52, 0x09, 0xd7, 0xd0, 0x10, - 0xa0, 0x68, 0x23, 0x58, 0x0d, 0x05, 0x00, 0x00 +/* + * Bytes 6,8,9,11 change for NAND boot + */ +static u8 nand_boot[] = { + 0xd0, 0xa0, 0x68, 0x58 }; static int do_bootstrap(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]) { - u8 chip; - u8 *buf; - int cpu_freq; + u8 *buf, bNAND; + int x, y, nbytes, selcfg; + extern char console_buffer[]; - if (argc < 3) { + if (argc < 2) { printf("Usage:\n%s\n", cmdtp->usage); return 1; } - cpu_freq = simple_strtol(argv[1], NULL, 10); - if (!((cpu_freq == 533) || (cpu_freq == 667))) { - printf("Unsupported cpu-frequency - only 533 and 667 supported\n"); + if ((strcmp(argv[1], "nor") != 0) && + (strcmp(argv[1], "nand") != 0)) { + printf("Unsupported boot-device - only nor|nand support\n"); return 1; } - /* use 0x52 as I2C EEPROM address for now */ - chip = 0x52; + /* set the nand flag based on provided input */ + if ((strcmp(argv[1], "nand") == 0)) + bNAND = 1; + else + bNAND = 0; - if ((strcmp(argv[2], "nor") != 0) && - (strcmp(argv[2], "nand") != 0)) { - printf("Unsupported boot-device - only nor|nand support\n"); - return 1; - } + printf("Available configurations: \n\n"); - if (strcmp(argv[2], "nand") == 0) { - switch (cpu_freq) { - default: - case 533: - buf = boot_533_nand; - break; - case 667: - buf = boot_667_nand; - break; + if (bNAND) { + for(x = 0, y = 0; boot_configs[x][0] != 0; x++) { + /* filter on nand compatible */ + if (boot_configs[x][0] & NAND_COMPATIBLE) { + printf(" %d - %s\n", (y+1), config_labels[x]); + y++; + } } } else { - switch (cpu_freq) { - default: - case 533: - buf = boot_533_nor; - break; - case 667: - buf = boot_667_nor; - break; + for(x = 0, y = 0; boot_configs[x][0] != 0; x++) { + /* filter on nor compatible */ + if (boot_configs[x][0] & NOR_COMPATIBLE) { + printf(" %d - %s\n", (y+1), config_labels[x]); + y++; + } } } - if (i2c_write(chip, 0, 1, buf, 16) != 0) - printf("Error writing to EEPROM at address 0x%x\n", chip); + do { + nbytes = readline(" Selection [1-x / quit]: "); + + if (nbytes) { + if (strcmp(console_buffer, "quit") == 0) + return 0; + selcfg = simple_strtol(console_buffer, NULL, 10); + if ((selcfg < 1) || (selcfg > y)) + nbytes = 0; + } + } while (nbytes == 0); + + + y = (selcfg - 1); + + for (x = 0; boot_configs[x][0] != 0; x++) { + if (bNAND) { + if (boot_configs[x][0] & NAND_COMPATIBLE) { + if (y > 0) + y--; + else if (y < 1) + break; + } + } else { + if (boot_configs[x][0] & NOR_COMPATIBLE) { + if (y > 0) + y--; + else if (y < 1) + break; + } + } + } + + buf = &boot_configs[x][1]; + + if (bNAND) { + buf[6] = nand_boot[0]; + buf[8] = nand_boot[1]; + buf[9] = nand_boot[2]; + buf[11] = nand_boot[3]; + } + + /* check CPLD register +5 for PCI 66MHz flag */ + if (in8(CFG_BCSR_BASE + 5) & 0x01) + buf[5] += 0x10; + + if (i2c_write(I2C_EEPROM_ADDR, 0, 1, buf, 16) != 0) + printf("Error writing to EEPROM at address 0x%x\n", I2C_EEPROM_ADDR); udelay(CFG_EEPROM_PAGE_WRITE_DELAY_MS * 1000); printf("Done\n"); @@ -105,7 +214,7 @@ static int do_bootstrap(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]) } U_BOOT_CMD( - bootstrap, 3, 0, do_bootstrap, + bootstrap, 2, 0, do_bootstrap, "bootstrap - program the I2C bootstrap EEPROM\n", - "<cpu-freq> <nor|nand> - program the I2C bootstrap EEPROM\n" + "<nand|nor> - strap to boot from NAND or NOR flash\n" ); 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