ppc4xx: Add initial Zeus (PPC405EP) board support

Signed-off-by: Stefan Roese <sr@denx.de>

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