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authorStefan Roese <sr@denx.de>2007-08-14 14:44:41 +0200
committerStefan Roese <sr@denx.de>2007-08-14 14:44:41 +0200
commit779e975117a75e91fcebe226a63104dbfb924ab1 (patch)
tree42f48ba97342287f8e155cce29e8e0600064a16f /board/zeus/update.c
parentc5a172a5fd636c12467429e3f7910e53773979c6 (diff)
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ppc4xx: Add initial Zeus (PPC405EP) board support
Signed-off-by: Stefan Roese <sr@denx.de>
Diffstat (limited to 'board/zeus/update.c')
-rw-r--r--board/zeus/update.c105
1 files changed, 105 insertions, 0 deletions
diff --git a/board/zeus/update.c b/board/zeus/update.c
new file mode 100644
index 0000000..c76519f
--- /dev/null
+++ b/board/zeus/update.c
@@ -0,0 +1,105 @@
+/*
+ * (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 <config.h>
+#include <common.h>
+#include <command.h>
+#include <asm/processor.h>
+#include <asm/io.h>
+#include <asm/gpio.h>
+#include <i2c.h>
+
+#if defined(CONFIG_ZEUS)
+
+u8 buf_zeus_ce[] = {
+/*00 01 02 03 04 05 06 07 */
+ 0x05, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+/*08 09 0a 0b 0c 0d 0e 0f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+/*10 11 12 13 14 15 16 17 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+/*18 19 1a 1b 1c 1d 1e 1f */
+ 0x00, 0xc0, 0x50, 0x12, 0x72, 0x3e, 0x00, 0x00 };
+
+u8 buf_zeus_pe[] = {
+
+/* CPU_CLOCK_DIV 1 = 00
+ CPU_PLB_FREQ_DIV 3 = 10
+ OPB_PLB_FREQ_DIV 2 = 01
+ EBC_PLB_FREQ_DIV 2 = 00
+ MAL_PLB_FREQ_DIV 1 = 00
+ PCI_PLB_FRQ_DIV 3 = 10
+ PLL_PLLOUTA = IS SET
+ PLL_OPERATING = IS NOT SET
+ PLL_FDB_MUL 10 = 1010
+ PLL_FWD_DIV_A 3 = 101
+ PLL_FWD_DIV_B 3 = 101
+ TUNE = 0x2be */
+/*00 01 02 03 04 05 06 07 */
+ 0x05, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+/*08 09 0a 0b 0c 0d 0e 0f */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+/*10 11 12 13 14 15 16 17 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+/*18 19 1a 1b 1c 1d 1e 1f */
+ 0x00, 0x60, 0x68, 0x2d, 0x42, 0xbe, 0x00, 0x00 };
+
+static int update_boot_eeprom(void)
+{
+ u32 len = 0x20;
+ u8 chip = CFG_I2C_EEPROM_ADDR;
+ u8 *pbuf;
+ u8 base;
+ int i;
+
+ if (in_be32((void *)GPIO0_IR) & GPIO_VAL(CFG_GPIO_ZEUS_PE)) {
+ pbuf = buf_zeus_pe;
+ base = 0x40;
+ } else {
+ pbuf = buf_zeus_ce;
+ base = 0x00;
+ }
+
+ for (i = 0; i < len; i++, base++) {
+ if (i2c_write(chip, base, 1, &pbuf[i], 1) != 0) {
+ printf("i2c_write fail\n");
+ return 1;
+ }
+ udelay(11000);
+ }
+
+ return 0;
+}
+
+int do_update_boot_eeprom(cmd_tbl_t* cmdtp, int flag, int argc, char* argv[])
+{
+ return update_boot_eeprom();
+}
+
+U_BOOT_CMD (
+ update_boot_eeprom, 1, 1, do_update_boot_eeprom,
+ "update_boot_eeprom - update boot eeprom content\n",
+ NULL
+);
+
+#endif