aboutsummaryrefslogtreecommitdiff
diff options
context:
space:
mode:
authorStefan Roese <sr@denx.de>2007-06-19 17:22:44 +0200
committerStefan Roese <sr@denx.de>2007-06-19 17:22:44 +0200
commitb3f9ec86e388207fd03dcdf7b145b9ed080bf024 (patch)
tree00b4895198adc62482dd27f6c6740155ac1e13a1
parentdf8a24cdd30151505cf57bbee5289e91bf53bd1b (diff)
downloadu-boot-linaro-stable-b3f9ec86e388207fd03dcdf7b145b9ed080bf024.tar.gz
ppc4xx: Add bootstrap command for AMCC Sequoia (440EPx) eval board
This patch adds a board command to configure the I2C bootstrap EEPROM values. Right now 533 and 667MHz are supported for booting either via NOR or NAND FLASH. Here the usage: => bootstrap 533 nor ;to configure the board for 533MHz NOR booting => bootstrap 667 nand ;to configure the board for 667MHz NNAND booting Signed-off-by: Stefan Roese <sr@denx.de>
-rw-r--r--board/amcc/sequoia/Makefile2
-rw-r--r--board/amcc/sequoia/cmd_sequoia.c111
2 files changed, 112 insertions, 1 deletions
diff --git a/board/amcc/sequoia/Makefile b/board/amcc/sequoia/Makefile
index 06ef7f933..e1c9ad4d6 100644
--- a/board/amcc/sequoia/Makefile
+++ b/board/amcc/sequoia/Makefile
@@ -25,7 +25,7 @@ include $(TOPDIR)/config.mk
LIB = $(obj)lib$(BOARD).a
-COBJS = $(BOARD).o sdram.o
+COBJS = $(BOARD).o cmd_sequoia.o sdram.o
SOBJS = init.o
SRCS := $(SOBJS:.o=.S) $(COBJS:.o=.c)
diff --git a/board/amcc/sequoia/cmd_sequoia.c b/board/amcc/sequoia/cmd_sequoia.c
new file mode 100644
index 000000000..6fc60eaaa
--- /dev/null
+++ b/board/amcc/sequoia/cmd_sequoia.c
@@ -0,0 +1,111 @@
+/*
+ * (C) Copyright 2007
+ * Stefan Roese, DENX Software Engineering, sr@denx.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>
+
+static u8 boot_533_nor[] = {
+ 0x87, 0x78, 0x82, 0x52, 0x09, 0x57, 0xa0, 0x30,
+ 0x40, 0x08, 0x23, 0x50, 0x0d, 0x05, 0x00, 0x00
+};
+
+static u8 boot_533_nand[] = {
+ 0x87, 0x78, 0x82, 0x52, 0x09, 0x57, 0xd0, 0x10,
+ 0xa0, 0x68, 0x23, 0x58, 0x0d, 0x05, 0x00, 0x00
+};
+
+static u8 boot_667_nor[] = {
+ 0x87, 0x78, 0xa2, 0x52, 0x09, 0xd7, 0xa0, 0x30,
+ 0x40, 0x08, 0x23, 0x50, 0x0d, 0x05, 0x00, 0x00
+};
+
+static u8 boot_667_nand[] = {
+ 0x87, 0x78, 0xa2, 0x52, 0x09, 0xd7, 0xd0, 0x10,
+ 0xa0, 0x68, 0x23, 0x58, 0x0d, 0x05, 0x00, 0x00
+};
+
+static int do_bootstrap(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+{
+ u8 chip;
+ u8 *buf;
+ int cpu_freq;
+
+ if (argc < 3) {
+ 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");
+ return 1;
+ }
+
+ /* use 0x52 as I2C EEPROM address for now */
+ chip = 0x52;
+
+ if ((strcmp(argv[2], "nor") != 0) &&
+ (strcmp(argv[2], "nand") != 0)) {
+ printf("Unsupported boot-device - only nor|nand support\n");
+ return 1;
+ }
+
+ if (strcmp(argv[2], "nand") == 0) {
+ switch (cpu_freq) {
+ default:
+ case 533:
+ buf = boot_533_nand;
+ break;
+ case 667:
+ buf = boot_667_nand;
+ break;
+ }
+ } else {
+ switch (cpu_freq) {
+ default:
+ case 533:
+ buf = boot_533_nor;
+ break;
+ case 667:
+ buf = boot_667_nor;
+ break;
+ }
+ }
+
+ if (i2c_write(chip, 0, 1, buf, 16) != 0)
+ printf("Error writing to EEPROM at address 0x%x\n", chip);
+ udelay(CFG_EEPROM_PAGE_WRITE_DELAY_MS * 1000);
+
+ printf("Done\n");
+ printf("Please power-cycle the board for the changes to take effect\n");
+
+ return 0;
+}
+
+U_BOOT_CMD(
+ bootstrap, 3, 0, do_bootstrap,
+ "bootstrap - program the I2C bootstrap EEPROM\n",
+ "<cpu-freq> <nor|nand> - program the I2C bootstrap EEPROM\n"
+ );