X-Git-Url: https://gerrit.opnfv.org/gerrit/gitweb?a=blobdiff_plain;f=qemu%2Froms%2Fu-boot%2Farch%2Fpowerpc%2Fcpu%2Fppc4xx%2Fcmd_chip_config.c;fp=qemu%2Froms%2Fu-boot%2Farch%2Fpowerpc%2Fcpu%2Fppc4xx%2Fcmd_chip_config.c;h=4e9a40d5854104e53e2fea3c8e1d0e4952826c98;hb=e44e3482bdb4d0ebde2d8b41830ac2cdb07948fb;hp=0000000000000000000000000000000000000000;hpb=9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00;p=kvmfornfv.git

diff --git a/qemu/roms/u-boot/arch/powerpc/cpu/ppc4xx/cmd_chip_config.c b/qemu/roms/u-boot/arch/powerpc/cpu/ppc4xx/cmd_chip_config.c
new file mode 100644
index 000000000..4e9a40d58
--- /dev/null
+++ b/qemu/roms/u-boot/arch/powerpc/cpu/ppc4xx/cmd_chip_config.c
@@ -0,0 +1,131 @@
+/*
+ * (C) Copyright 2008-2009
+ * Stefan Roese, DENX Software Engineering, sr@denx.de.
+ *
+ * (C) Copyright 2009
+ * Dirk Eibach,  Guntermann & Drunck GmbH, eibach@gdsys.de
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#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 * const argv[])
+{
+	int i;
+	int ret;
+	int cur_config_nr = -1;
+	u8 cur_config[CONFIG_4xx_CONFIG_BLOCKSIZE];
+
+	/*
+	 * First switch to correct I2C bus. This is I2C bus 0
+	 * for all currently available 4xx derivats.
+	 */
+	i2c_set_bus_num(0);
+
+#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]"
+);