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Diffstat (limited to 'cpu/ppc4xx/cmd_chip_config.c')
-rw-r--r--cpu/ppc4xx/cmd_chip_config.c142
1 files changed, 142 insertions, 0 deletions
diff --git a/cpu/ppc4xx/cmd_chip_config.c b/cpu/ppc4xx/cmd_chip_config.c
new file mode 100644
index 0000000..d360d5b
--- /dev/null
+++ b/cpu/ppc4xx/cmd_chip_config.c
@@ -0,0 +1,142 @@
+/*
+ * (C) Copyright 2008-2009
+ * Stefan Roese, DENX Software Engineering, sr@denx.de.
+ *
+ * (C) Copyright 2009
+ * Dirk Eibach, Guntermann & Drunck GmbH, eibach@gdsys.de
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ *
+ */
+
+#include <common.h>
+#include <command.h>
+#include <i2c.h>
+#include <asm/ppc4xx_config.h>
+#include <asm/io.h>
+
+static void print_configs(int cur_config_nr)
+{
+ int i;
+
+ for (i = 0; i < ppc4xx_config_count; i++) {
+ printf("%-16s - %s", ppc4xx_config_val[i].label,
+ ppc4xx_config_val[i].description);
+ if (i == cur_config_nr)
+ printf(" ***");
+ printf("\n");
+ }
+
+}
+
+static int do_chip_config(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+{
+ int i;
+ int ret;
+ int cur_config_nr = -1;
+ u8 cur_config[CONFIG_4xx_CONFIG_BLOCKSIZE];
+
+#ifdef CONFIG_CMD_EEPROM
+ ret = eeprom_read(CONFIG_4xx_CONFIG_I2C_EEPROM_ADDR,
+ CONFIG_4xx_CONFIG_I2C_EEPROM_OFFSET,
+ cur_config, CONFIG_4xx_CONFIG_BLOCKSIZE);
+#else
+ ret = i2c_read(CONFIG_4xx_CONFIG_I2C_EEPROM_ADDR,
+ CONFIG_4xx_CONFIG_I2C_EEPROM_OFFSET,
+ 1, cur_config, CONFIG_4xx_CONFIG_BLOCKSIZE);
+#endif
+ if (ret) {
+ printf("Error reading EEPROM at addr 0x%x\n",
+ CONFIG_4xx_CONFIG_I2C_EEPROM_ADDR);
+ return -1;
+ }
+
+ /*
+ * Search the current configuration
+ */
+ for (i = 0; i < ppc4xx_config_count; i++) {
+ if (memcmp(cur_config, ppc4xx_config_val[i].val,
+ CONFIG_4xx_CONFIG_BLOCKSIZE) == 0)
+ cur_config_nr = i;
+ }
+
+ if (cur_config_nr == -1) {
+ printf("Warning: The I2C bootstrap values don't match any"
+ " of the available options!\n");
+ printf("I2C bootstrap EEPROM values are (I2C address 0x%02x):\n",
+ CONFIG_4xx_CONFIG_I2C_EEPROM_ADDR);
+ for (i = 0; i < CONFIG_4xx_CONFIG_BLOCKSIZE; i++) {
+ printf("%02x ", cur_config[i]);
+ }
+ printf("\n");
+ }
+
+ if (argc < 2) {
+ printf("Available configurations (I2C address 0x%02x):\n",
+ CONFIG_4xx_CONFIG_I2C_EEPROM_ADDR);
+ print_configs(cur_config_nr);
+ return 0;
+ }
+
+ for (i = 0; i < ppc4xx_config_count; i++) {
+ /*
+ * Search for configuration name/label
+ */
+ if (strcmp(argv[1], ppc4xx_config_val[i].label) == 0) {
+ printf("Using configuration:\n%-16s - %s\n",
+ ppc4xx_config_val[i].label,
+ ppc4xx_config_val[i].description);
+
+#ifdef CONFIG_CMD_EEPROM
+ ret = eeprom_write(CONFIG_4xx_CONFIG_I2C_EEPROM_ADDR,
+ CONFIG_4xx_CONFIG_I2C_EEPROM_OFFSET,
+ ppc4xx_config_val[i].val,
+ CONFIG_4xx_CONFIG_BLOCKSIZE);
+#else
+ ret = i2c_write(CONFIG_4xx_CONFIG_I2C_EEPROM_ADDR,
+ CONFIG_4xx_CONFIG_I2C_EEPROM_OFFSET,
+ 1, ppc4xx_config_val[i].val,
+ CONFIG_4xx_CONFIG_BLOCKSIZE);
+#endif
+ udelay(CONFIG_SYS_EEPROM_PAGE_WRITE_DELAY_MS * 1000);
+ if (ret) {
+ printf("Error updating EEPROM at addr 0x%x\n",
+ CONFIG_4xx_CONFIG_I2C_EEPROM_ADDR);
+ return -1;
+ }
+
+ printf("done (dump via 'i2c md %x 0.1 %x')\n",
+ CONFIG_4xx_CONFIG_I2C_EEPROM_ADDR,
+ CONFIG_4xx_CONFIG_BLOCKSIZE);
+ printf("Reset the board for the changes to"
+ " take effect\n");
+ return 0;
+ }
+ }
+
+ printf("Configuration %s not found!\n", argv[1]);
+ print_configs(cur_config_nr);
+ return -1;
+}
+
+U_BOOT_CMD(
+ chip_config, 2, 0, do_chip_config,
+ "program the I2C bootstrap EEPROM",
+ "[config-label]"
+);