Add support for the MPC837xERDB

MPC837xERDB board support includes:
* DDR2 330MHz hardcoded (soldered on the board)
* Local Bus NOR Flash
* I2C, UART and RTC
* eTSEC RGMII (TSEC0 - RTL8211B with MII;
*	       TSEC1 - VSC7385 local bus, hardcoded, requires seperate firmware
*		       load)

Signed-off-by: Kevin Lam <kevin.lam@freescale.com>
Signed-off-by: Joe D'Abbraccio <joe.d'abbraccio@freescale.com>
Signed-off-by: Kim Phillips <kim.phillips@freescale.com>

1 files changed, 150 insertions, 0 deletions

diff --git a/board/freescale/mpc837xerdb/mpc837xerdb.c b/board/freescale/mpc837xerdb/mpc837xerdb.c
new file mode 100644
index 0000000..2d42595
--- /dev/null
+++ b/board/freescale/mpc837xerdb/mpc837xerdb.c
@@ -0,0 +1,150 @@
+/*
+ * Copyright (C) 2007 Freescale Semiconductor, Inc.
+ * Kevin Lam <kevin.lam@freescale.com>
+ * Joe D'Abbraccio <joe.d'abbraccio@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 <i2c.h>
+#include <spd.h>
+#include <asm/io.h>
+#if defined(CONFIG_SPD_EEPROM)
+#include <spd_sdram.h>
+#endif
+
+#if defined(CFG_DRAM_TEST)
+int
+testdram(void)
+{
+	uint *pstart = (uint *) CFG_MEMTEST_START;
+	uint *pend = (uint *) CFG_MEMTEST_END;
+	uint *p;
+
+	printf("Testing DRAM from 0x%08x to 0x%08x\n",
+	       CFG_MEMTEST_START,
+	       CFG_MEMTEST_END);
+
+	printf("DRAM test phase 1:\n");
+	for (p = pstart; p < pend; p++)
+		*p = 0xaaaaaaaa;
+
+	for (p = pstart; p < pend; p++) {
+		if (*p != 0xaaaaaaaa) {
+			printf("DRAM test fails at: %08x\n", (uint) p);
+			return 1;
+		}
+	}
+
+	printf("DRAM test phase 2:\n");
+	for (p = pstart; p < pend; p++)
+		*p = 0x55555555;
+
+	for (p = pstart; p < pend; p++) {
+		if (*p != 0x55555555) {
+			printf("DRAM test fails at: %08x\n", (uint) p);
+			return 1;
+		}
+	}
+
+	printf("DRAM test passed.\n");
+	return 0;
+}
+#endif
+
+int board_early_init_f(void)
+{
+	return 0;
+}
+
+#if defined(CONFIG_DDR_ECC) && !defined(CONFIG_ECC_INIT_VIA_DDRC)
+void ddr_enable_ecc(unsigned int dram_size);
+#endif
+int fixed_sdram(void);
+
+long int initdram(int board_type)
+{
+	immap_t *im = (immap_t *) CFG_IMMR;
+	u32 msize = 0;
+
+	if ((im->sysconf.immrbar & IMMRBAR_BASE_ADDR) != (u32) im)
+		return -1;
+
+#if defined(CONFIG_SPD_EEPROM)
+	msize = spd_sdram();
+#else
+	msize = fixed_sdram();
+#endif
+
+#if defined(CONFIG_DDR_ECC) && !defined(CONFIG_ECC_INIT_VIA_DDRC)
+	/* Initialize DDR ECC byte */
+	ddr_enable_ecc(msize * 1024 * 1024);
+#endif
+	/* return total bus DDR size(bytes) */
+	return (msize * 1024 * 1024);
+}
+
+#if !defined(CONFIG_SPD_EEPROM)
+/*************************************************************************
+ *  fixed sdram init -- doesn't use serial presence detect.
+ ************************************************************************/
+int fixed_sdram(void)
+{
+	immap_t *im = (immap_t *) CFG_IMMR;
+	u32 msize = CFG_DDR_SIZE * 1024 * 1024;
+	u32 msize_log2 = __ilog2(msize);
+
+	im->sysconf.ddrlaw[0].bar = CFG_DDR_SDRAM_BASE >> 12;
+	im->sysconf.ddrlaw[0].ar = LBLAWAR_EN | (msize_log2 - 1);
+
+	im->sysconf.ddrcdr = CFG_DDRCDR_VALUE;
+	udelay(50000);
+
+	im->ddr.sdram_clk_cntl = CFG_DDR_SDRAM_CLK_CNTL;
+	udelay(1000);
+
+	im->ddr.csbnds[0].csbnds = CFG_DDR_CS0_BNDS;
+	im->ddr.cs_config[0] = CFG_DDR_CS0_CONFIG;
+	udelay(1000);
+
+	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;
+	sync();
+	udelay(1000);
+
+	im->ddr.sdram_cfg |= SDRAM_CFG_MEM_EN;
+	udelay(2000);
+	return CFG_DDR_SIZE;
+}
+#endif	/*!CFG_SPD_EEPROM */
+
+int checkboard(void)
+{
+	puts("Board: Freescale MPC837xERDB\n");
+	return 0;
+}
+
+#if defined(CONFIG_OF_BOARD_SETUP)
+
+void ft_board_setup(void *blob, bd_t *bd)
+{
+#ifdef CONFIG_PCI
+	ft_pci_setup(blob, bd);
+#endif
+	ft_cpu_setup(blob, bd);
+}
+#endif /* CONFIG_OF_BOARD_SETUP */