mpc83xx: Add support for the MPC832XEMDS board

This patch supports DUART, ETH3/4 and PCI etc.

Signed-off-by: Dave Liu <daveliu@freescale.com>

1 files changed, 176 insertions, 0 deletions

diff --git a/board/mpc832xemds/mpc832xemds.c b/board/mpc832xemds/mpc832xemds.c
new file mode 100644
index 0000000..772da67
--- /dev/null
+++ b/board/mpc832xemds/mpc832xemds.c
@@ -0,0 +1,176 @@
+/*
+ * Copyright (C) 2006 Freescale Semiconductor, Inc.
+ *
+ * Dave Liu <daveliu@freescale.com>
+ *
+ * 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.
+ */
+
+#include <common.h>
+#include <ioports.h>
+#include <mpc83xx.h>
+#include <i2c.h>
+#include <spd.h>
+#include <miiphy.h>
+#include <command.h>
+#if defined(CONFIG_PCI)
+#include <pci.h>
+#endif
+#if defined(CONFIG_SPD_EEPROM)
+#include <spd_sdram.h>
+#else
+#include <asm/mmu.h>
+#endif
+#if defined(CONFIG_OF_FLAT_TREE)
+#include <ft_build.h>
+#endif
+
+const qe_iop_conf_t qe_iop_conf_tab[] = {
+	/* ETH3 */
+	{1,  0, 1, 0, 1}, /* TxD0 */
+	{1,  1, 1, 0, 1}, /* TxD1 */
+	{1,  2, 1, 0, 1}, /* TxD2 */
+	{1,  3, 1, 0, 1}, /* TxD3 */
+	{1,  9, 1, 0, 1}, /* TxER */
+	{1, 12, 1, 0, 1}, /* TxEN */
+	{3, 24, 2, 0, 1}, /* TxCLK->CLK10 */
+
+	{1,  4, 2, 0, 1}, /* RxD0 */
+	{1,  5, 2, 0, 1}, /* RxD1 */
+	{1,  6, 2, 0, 1}, /* RxD2 */
+	{1,  7, 2, 0, 1}, /* RxD3 */
+	{1,  8, 2, 0, 1}, /* RxER */
+	{1, 10, 2, 0, 1}, /* RxDV */
+	{0, 13, 2, 0, 1}, /* RxCLK->CLK9 */
+	{1, 11, 2, 0, 1}, /* COL */
+	{1, 13, 2, 0, 1}, /* CRS */
+
+	/* ETH4 */
+	{1, 18, 1, 0, 1}, /* TxD0 */
+	{1, 19, 1, 0, 1}, /* TxD1 */
+	{1, 20, 1, 0, 1}, /* TxD2 */
+	{1, 21, 1, 0, 1}, /* TxD3 */
+	{1, 27, 1, 0, 1}, /* TxER */
+	{1, 30, 1, 0, 1}, /* TxEN */
+	{3,  6, 2, 0, 1}, /* TxCLK->CLK8 */
+
+	{1, 22, 2, 0, 1}, /* RxD0 */
+	{1, 23, 2, 0, 1}, /* RxD1 */
+	{1, 24, 2, 0, 1}, /* RxD2 */
+	{1, 25, 2, 0, 1}, /* RxD3 */
+	{1, 26, 1, 0, 1}, /* RxER */
+	{1, 28, 2, 0, 1}, /* Rx_DV */
+	{3, 31, 2, 0, 1}, /* RxCLK->CLK7 */
+	{1, 29, 2, 0, 1}, /* COL */
+	{1, 31, 2, 0, 1}, /* CRS */
+
+	{3,  4, 3, 0, 2}, /* MDIO */
+	{3,  5, 1, 0, 2}, /* MDC */
+
+	{0,  0, 0, 0, QE_IOP_TAB_END}, /* END of table */
+};
+
+int board_early_init_f(void)
+{
+	volatile u8 *bcsr = (volatile u8 *)CFG_BCSR;
+
+	/* Enable flash write */
+	bcsr[9] &= ~0x08;
+
+	return 0;
+}
+
+int fixed_sdram(void);
+
+long int initdram(int board_type)
+{
+	volatile immap_t *im = (immap_t *) CFG_IMMR;
+	u32 msize = 0;
+
+	if ((im->sysconf.immrbar & IMMRBAR_BASE_ADDR) != (u32) im)
+		return -1;
+
+	/* DDR SDRAM - Main SODIMM */
+	im->sysconf.ddrlaw[0].bar = CFG_DDR_BASE & LAWBAR_BAR;
+
+	msize = fixed_sdram();
+
+	puts("\n   DDR RAM: ");
+
+	/* return total bus SDRAM size(bytes)  -- DDR */
+	return (msize * 1024 * 1024);
+}
+
+/*************************************************************************
+ *  fixed sdram init -- doesn't use serial presence detect.
+ ************************************************************************/
+int fixed_sdram(void)
+{
+	volatile immap_t *im = (immap_t *) CFG_IMMR;
+	u32 msize = 0;
+	u32 ddr_size;
+	u32 ddr_size_log2;
+
+	msize = CFG_DDR_SIZE;
+	for (ddr_size = msize << 20, ddr_size_log2 = 0;
+	     (ddr_size > 1); ddr_size = ddr_size >> 1, ddr_size_log2++) {
+		if (ddr_size & 1) {
+			return -1;
+		}
+	}
+	im->sysconf.ddrlaw[0].ar =
+	    LAWAR_EN | ((ddr_size_log2 - 1) & LAWAR_SIZE);
+#if (CFG_DDR_SIZE != 128)
+#warning Currenly any ddr size other than 128 is not supported
+#endif
+	im->ddr.sdram_clk_cntl = CFG_DDR_CLK_CNTL;
+	im->ddr.csbnds[0].csbnds = CFG_DDR_CS0_BNDS;
+	im->ddr.cs_config[0] = CFG_DDR_CS0_CONFIG;
+	im->ddr.timing_cfg_0 = CFG_DDR_TIMING_0;
+	im->ddr.timing_cfg_1 = CFG_DDR_TIMING_1;
+	im->ddr.timing_cfg_2 = CFG_DDR_TIMING_2;
+	im->ddr.timing_cfg_3 = CFG_DDR_TIMING_3;
+	im->ddr.sdram_cfg = CFG_DDR_SDRAM_CFG;
+	im->ddr.sdram_cfg2 = CFG_DDR_SDRAM_CFG2;
+	im->ddr.sdram_mode = CFG_DDR_MODE;
+	im->ddr.sdram_mode2 = CFG_DDR_MODE2;
+	im->ddr.sdram_interval = CFG_DDR_INTERVAL;
+	__asm__ __volatile__ ("sync");
+	udelay(200);
+
+	im->ddr.sdram_cfg |= SDRAM_CFG_MEM_EN;
+	__asm__ __volatile__ ("sync");
+	return msize;
+}
+
+int checkboard(void)
+{
+	puts("Board: Freescale MPC832XEMDS\n");
+	return 0;
+}
+
+#if defined(CONFIG_OF_FLAT_TREE) && defined(CONFIG_OF_BOARD_SETUP)
+void
+ft_board_setup(void *blob, bd_t *bd)
+{
+	u32 *p;
+	int len;
+
+#ifdef CONFIG_PCI
+	ft_pci_setup(blob, bd);
+#endif
+	ft_cpu_setup(blob, bd);
+
+	p = ft_get_prop(blob, "/memory/reg", &len);
+	if (p != NULL) {
+		*p++ = cpu_to_be32(bd->bi_memstart);
+		*p = cpu_to_be32(bd->bi_memsize);
+	}
+}
+#endif