+++ /dev/null
-/*
- * (C) Copyright 2000, 2001
- * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
- *
- * SPDX-License-Identifier: GPL-2.0+
- */
-
-/*
- * ehnus: change pll frequency.
- * Wed Sep 5 11:45:17 CST 2007
- * hsun@udtech.com.cn
- */
-
-
-#include <common.h>
-#include <config.h>
-#include <command.h>
-#include <i2c.h>
-
-#ifdef CONFIG_CMD_EEPROM
-
-#define EEPROM_CONF_OFFSET 0
-#define EEPROM_TEST_OFFSET 16
-#define EEPROM_SDSTP_PARAM 16
-
-#define PLL_NAME_MAX 12
-#define BUF_STEP 8
-
-/* eeprom_wirtes 8Byte per op. */
-#define EEPROM_ALTER_FREQ(freq) \
- do { \
- int __i; \
- for (__i = 0; __i < 2; __i++) \
- eeprom_write (CONFIG_SYS_I2C_EEPROM_ADDR, \
- EEPROM_CONF_OFFSET + __i*BUF_STEP, \
- pll_select[freq], \
- BUF_STEP + __i*BUF_STEP); \
- } while (0)
-
-#define PDEBUG
-#ifdef PDEBUG
-#define PLL_DEBUG pll_debug(EEPROM_CONF_OFFSET)
-#else
-#define PLL_DEBUG
-#endif
-
-typedef enum {
- PLL_ebc20,
- PLL_333,
- PLL_4001,
- PLL_4002,
- PLL_533,
- PLL_600,
- PLL_666, /* For now, kilauea can't support */
- RCONF,
- WTEST,
- PLL_TOTAL
-} pll_freq_t;
-
-static const char
-pll_name[][PLL_NAME_MAX] = {
- "PLL_ebc20",
- "PLL_333",
- "PLL_400@1",
- "PLL_400@2",
- "PLL_533",
- "PLL_600",
- "PLL_666",
- "RCONF",
- "WTEST",
- ""
-};
-
-/*
- * ehnus:
- */
-static uchar
-pll_select[][EEPROM_SDSTP_PARAM] = {
- /* 0: CPU 333MHz EBC 20MHz, for test only */
- {
- 0x8c, 0x12, 0xec, 0x12, 0x88, 0x00, 0x0a, 0x00,
- 0x40, 0x08, 0x23, 0x50, 0x00, 0x05, 0x00, 0x00
- },
-
- /* 0: 333 */
- {
- 0x8c, 0x12, 0xec, 0x12, 0x98, 0x00, 0x0a, 0x00,
- 0x40, 0x08, 0x23, 0x50, 0x00, 0x05, 0x00, 0x00
- },
-
- /* 1: 400_266 */
- {
- 0x8e, 0x0e, 0xe8, 0x13, 0x98, 0x00, 0x0a, 0x00,
- 0x40, 0x08, 0x23, 0x50, 0x00, 0x05, 0x00, 0x00
- },
-
- /* 2: 400 */
- {
- 0x8e, 0x0e, 0xe8, 0x12, 0x98, 0x00, 0x0a, 0x00,
- 0x40, 0x08, 0x23, 0x50, 0x00, 0x05, 0x00, 0x00
- },
-
- /* 3: 533 */
- {
- 0x8e, 0x43, 0x60, 0x13, 0x98, 0x00, 0x0a, 0x00,
- 0x40, 0x08, 0x23, 0x50, 0x00, 0x05, 0x00, 0x00
- },
-
- /* 4: 600 */
- {
- 0x8d, 0x02, 0x34, 0x13, 0x98, 0x00, 0x0a, 0x00,
- 0x40, 0x08, 0x23, 0x50, 0x00, 0x05, 0x00, 0x00
- },
-
- /* 5: 666 */
- {
- 0x8d, 0x03, 0x78, 0x13, 0x98, 0x00, 0x0a, 0x00,
- 0x40, 0x08, 0x23, 0x50, 0x00, 0x05, 0x00, 0x00
- },
-
- {}
-};
-
-static uchar
-testbuf[EEPROM_SDSTP_PARAM] = {
- 0x00, 0x11, 0x22, 0x33, 0x44, 0x55, 0x66, 0x77,
- 0x88, 0x99, 0xaa, 0xbb, 0xcc, 0xdd, 0xee, 0xff
-};
-
-static void
-pll_debug(int off)
-{
- int i;
- uchar buffer[EEPROM_SDSTP_PARAM];
-
- memset(buffer, 0, sizeof(buffer));
- eeprom_read(CONFIG_SYS_I2C_EEPROM_ADDR, off,
- buffer, EEPROM_SDSTP_PARAM);
-
- printf("Debug: SDSTP[0-3] at offset \"0x%02x\" lists as follows: \n", off);
- for (i = 0; i < EEPROM_SDSTP_PARAM; i++)
- printf("%02x ", buffer[i]);
- printf("\n");
-}
-
-static void
-test_write(void)
-{
- printf("Debug: test eeprom_write ... ");
-
- /*
- * Write twice, 8 bytes per write
- */
- eeprom_write (CONFIG_SYS_I2C_EEPROM_ADDR, EEPROM_TEST_OFFSET,
- testbuf, 8);
- eeprom_write (CONFIG_SYS_I2C_EEPROM_ADDR, EEPROM_TEST_OFFSET+8,
- testbuf, 16);
- printf("done\n");
-
- pll_debug(EEPROM_TEST_OFFSET);
-}
-
-int
-do_pll_alter (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
-{
- char c = '\0';
- pll_freq_t pll_freq;
-
- if (argc < 2)
- return cmd_usage(cmdtp);
-
- for (pll_freq = PLL_ebc20; pll_freq < PLL_TOTAL; pll_freq++) {
- if (!strcmp(pll_name[pll_freq], argv[1]))
- break;
- }
-
- switch (pll_freq) {
- case PLL_ebc20:
- case PLL_333:
- case PLL_4001:
- case PLL_4002:
- case PLL_533:
- case PLL_600:
- EEPROM_ALTER_FREQ(pll_freq);
- break;
-
- case PLL_666: /* not support */
- printf("Choose this option will result in a boot failure."
- "\nContinue? (Y/N): ");
-
- c = getc(); putc('\n');
-
- if ((c == 'y') || (c == 'Y')) {
- EEPROM_ALTER_FREQ(pll_freq);
- break;
- }
- goto ret;
-
- case RCONF:
- pll_debug(EEPROM_CONF_OFFSET);
- goto ret;
- case WTEST:
- printf("DEBUG: write test\n");
- test_write();
- goto ret;
-
- default:
- printf("Invalid options\n\n");
- return cmd_usage(cmdtp);
- }
-
- printf("PLL set to %s, "
- "reset the board to take effect\n", pll_name[pll_freq]);
-
- PLL_DEBUG;
-ret:
- return 0;
-}
-
-U_BOOT_CMD(
- pllalter, CONFIG_SYS_MAXARGS, 1, do_pll_alter,
- "change pll frequence",
- "pllalter <selection> - change pll frequence \n\n\
- ** New freq take effect after reset. ** \n\
- ----------------------------------------------\n\
- PLL_ebc20: Board: AMCC 405EX(r) Evaluation Board\n\
- \t Same as PLL_333 \n\
- \t except \n\
- \t EBC: 20 MHz \n\
- ----------------------------------------------\n\
- PLL_333: Board: AMCC 405EX(r) Evaluation Board\n\
- \t VCO: 666 MHz \n\
- \t CPU: 333 MHz \n\
- \t PLB: 166 MHz \n\
- \t OPB: 83 MHz \n\
- \t DDR: 83 MHz \n\
- ------------------------------------------------\n\
- PLL_400@1: Board: AMCC 405EX(r) Evaluation Board\n\
- \t VCO: 800 MHz \n\
- \t CPU: 400 MHz \n\
- \t PLB: 133 MHz \n\
- \t OPB: 66 MHz \n\
- \t DDR: 133 MHz \n\
- ------------------------------------------------\n\
- PLL_400@2: Board: AMCC 405EX(r) Evaluation Board\n\
- \t VCO: 800 MHz \n\
- \t CPU: 400 MHz \n\
- \t PLB: 200 MHz \n\
- \t OPB: 100 MHz \n\
- \t DDR: 200 MHz \n\
- ----------------------------------------------\n\
- PLL_533: Board: AMCC 405EX(r) Evaluation Board\n\
- \t VCO: 1066 MHz \n\
- \t CPU: 533 MHz \n\
- \t PLB: 177 MHz \n\
- \t OPB: 88 MHz \n\
- \t DDR: 177 MHz \n\
- ----------------------------------------------\n\
- PLL_600: Board: AMCC 405EX(r) Evaluation Board\n\
- \t VCO: 1200 MHz \n\
- \t CPU: 600 MHz \n\
- \t PLB: 200 MHz \n\
- \t OPB: 100 MHz \n\
- \t DDR: 200 MHz \n\
- ----------------------------------------------\n\
- PLL_666: Board: AMCC 405EX(r) Evaluation Board\n\
- \t VCO: 1333 MHz \n\
- \t CPU: 666 MHz \n\
- \t PLB: 166 MHz \n\
- \t OPB: 83 MHz \n\
- \t DDR: 166 MHz \n\
- -----------------------------------------------\n\
- RCONF: Read current eeprom configuration. \n\
- -----------------------------------------------\n\
- WTEST: Test EEPROM write with predefined values\n\
- -----------------------------------------------"
-);
-
-#endif /* CONFIG_CMD_EEPROM */
projects / people / ms / u-boot.git / blobdiff