#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");
}
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"
);
projects / u-boot / commitdiff