Add initial support for MPC8349E MDS board.

1 files changed, 279 insertions, 0 deletions

diff --git a/board/mpc8349emds/mpc8349emds.c b/board/mpc8349emds/mpc8349emds.c
new file mode 100644
index 0000000..cff4774
--- /dev/null
+++ b/board/mpc8349emds/mpc8349emds.c
@@ -0,0 +1,279 @@
+/*
+ * (C) Copyright 2006
+ * Wolfgang Denk, DENX Software Engineering, wd@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 <ioports.h>
+#include <mpc83xx.h>
+#include <asm/mpc8349_pci.h>
+#include <i2c.h>
+#include <spd.h>
+#include <miiphy.h>
+#if defined(CONFIG_PCI)
+#include <pci.h>
+#endif
+#if defined(CONFIG_SPD_EEPROM)
+#include <spd_sdram.h>
+#endif
+int fixed_sdram(void);
+void sdram_init(void);
+
+#if defined(CONFIG_DDR_ECC) && defined(CONFIG_MPC83XX)
+void ddr_enable_ecc(unsigned int dram_size);
+#endif
+
+int board_early_init_f (void)
+{
+	volatile u8* bcsr = (volatile u8*)CFG_BCSR;
+
+	/* Enable flash write */
+	bcsr[1] &= ~0x01;
+
+	return 0;
+}
+
+#define ns2clk(ns) (ns / (1000000000 / CONFIG_8349_CLKIN) + 1)
+
+long int initdram (int board_type)
+{
+	volatile immap_t *im = (immap_t *)CFG_IMMRBAR;
+	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;
+#if defined(CONFIG_SPD_EEPROM)
+
+	msize = spd_sdram(0);
+#else
+	msize = fixed_sdram();
+#endif
+	/*
+	 * Initialize SDRAM if it is on local bus.
+	 */
+	sdram_init();
+
+#if defined(CONFIG_DDR_ECC) && !defined(CONFIG_ECC_INIT_VIA_DDRCONTROLLER)
+	/*
+	 * Initialize and enable DDR ECC.
+	 */
+	ddr_enable_ecc(msize * 1024 * 1024);
+#endif
+	puts("   DDR RAM: ");
+	/* return total bus SDRAM size(bytes)  -- DDR */
+	return (msize * 1024 * 1024);
+}
+
+#if !defined(CONFIG_SPD_EEPROM)
+/*************************************************************************
+ *  fixed sdram init -- doesn't use serial presence detect.
+ ************************************************************************/
+int fixed_sdram(void)
+{
+	volatile immap_t *im = (immap_t *)CFG_IMMRBAR;
+	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 != 256)
+#warning Currenly any ddr size other than 256 is not supported
+#endif
+
+	im->ddr.csbnds[0].csbnds = 0x00100017;
+	im->ddr.csbnds[1].csbnds = 0x0018001f;
+	im->ddr.csbnds[2].csbnds = 0x00000007;
+	im->ddr.csbnds[3].csbnds = 0x0008000f;
+	im->ddr.cs_config[0] = CFG_DDR_CONFIG;
+	im->ddr.cs_config[1] = CFG_DDR_CONFIG;
+	im->ddr.cs_config[2] = CFG_DDR_CONFIG;
+	im->ddr.cs_config[3] = CFG_DDR_CONFIG;
+	im->ddr.timing_cfg_1 =
+		3 << TIMING_CFG1_PRETOACT_SHIFT |
+		7 << TIMING_CFG1_ACTTOPRE_SHIFT |
+		3 << TIMING_CFG1_ACTTORW_SHIFT  |
+		4 << TIMING_CFG1_CASLAT_SHIFT   |
+		3 << TIMING_CFG1_REFREC_SHIFT   |
+		3 << TIMING_CFG1_WRREC_SHIFT    |
+		2 << TIMING_CFG1_ACTTOACT_SHIFT |
+		1 << TIMING_CFG1_WRTORD_SHIFT;
+	im->ddr.timing_cfg_2 = 2 << TIMING_CFG2_WR_DATA_DELAY_SHIFT;
+	im->ddr.sdram_cfg =
+		SDRAM_CFG_SREN
+#if defined(CONFIG_DDR_2T_TIMING)
+		| SDRAM_CFG_2T_EN
+#endif
+		| 2 << SDRAM_CFG_SDRAM_TYPE_SHIFT;
+	im->ddr.sdram_mode =
+		0x2000 << SDRAM_MODE_ESD_SHIFT |
+		0x0162 << SDRAM_MODE_SD_SHIFT;
+
+	im->ddr.sdram_interval = 0x045B << SDRAM_INTERVAL_REFINT_SHIFT |
+		0x0100 << SDRAM_INTERVAL_BSTOPRE_SHIFT;
+	udelay(200);
+
+	im->ddr.sdram_cfg |= SDRAM_CFG_MEM_EN;
+
+	return msize;
+}
+#endif/*!CFG_SPD_EEPROM*/
+
+
+int checkboard (void)
+{
+	puts("Board: Freescale MPC8349EMDS\n");
+	return 0;
+}
+
+#if defined(CONFIG_PCI)
+/*
+ * Initialize PCI Devices, report devices found
+ */
+#ifndef CONFIG_PCI_PNP
+static struct pci_config_table pci_mpc8349emds_config_table[] = {
+	{PCI_ANY_ID,PCI_ANY_ID,PCI_ANY_ID,PCI_ANY_ID,
+	pci_cfgfunc_config_device, {PCI_ENET0_IOADDR,
+				    PCI_ENET0_MEMADDR,
+				    PCI_COMMON_MEMORY | PCI_COMMAND_MASTER
+	} },
+	{}
+}
+#endif
+
+volatile static struct pci_controller hose[] = {
+	{
+#ifndef CONFIG_PCI_PNP
+	config_table:pci_mpc8349emds_config_table,
+#endif
+	},
+	{
+#ifndef CONFIG_PCI_PNP
+	config_table:pci_mpc8349emds_config_table,
+#endif
+	}
+};
+#endif /* CONFIG_PCI */
+
+void pci_init_board(void)
+{
+#ifdef CONFIG_PCI
+	extern void pci_mpc83xx_init(volatile struct pci_controller *hose);
+
+	pci_mpc83xx_init(hose);
+#endif /* CONFIG_PCI */
+}
+
+/*
+ * if MPC8349EMDS is soldered with SDRAM
+ */
+#if defined(CFG_BR2_PRELIM)  \
+	&& defined(CFG_OR2_PRELIM) \
+	&& defined(CFG_LBLAWBAR2_PRELIM) \
+	&& defined(CFG_LBLAWAR2_PRELIM)
+/*
+ * Initialize SDRAM memory on the Local Bus.
+ */
+
+void sdram_init(void)
+{
+	volatile immap_t *immap = (immap_t *)CFG_IMMRBAR;
+	volatile lbus8349_t *lbc= &immap->lbus;
+	uint *sdram_addr = (uint *)CFG_LBC_SDRAM_BASE;
+
+	puts("\n   SDRAM on Local Bus: ");
+	print_size (CFG_LBC_SDRAM_SIZE * 1024 * 1024, "\n");
+
+	/*
+	 * Setup SDRAM Base and Option Registers, already done in cpu_init.c
+	 */
+
+	/* setup mtrpt, lsrt and lbcr for LB bus */
+	lbc->lbcr = CFG_LBC_LBCR;
+	lbc->mrtpr = CFG_LBC_MRTPR;
+	lbc->lsrt = CFG_LBC_LSRT;
+	asm("sync");
+
+	/*
+	 * Configure the SDRAM controller Machine Mode Register.
+	 */
+	lbc->lsdmr = CFG_LBC_LSDMR_5; /* 0x40636733; normal operation */
+
+	lbc->lsdmr = CFG_LBC_LSDMR_1; /* 0x68636733; precharge all the banks */
+	asm("sync");
+	*sdram_addr = 0xff;
+	udelay(100);
+
+	lbc->lsdmr = CFG_LBC_LSDMR_2; /* 0x48636733; auto refresh */
+	asm("sync");
+	/*1 times*/
+	*sdram_addr = 0xff;
+	udelay(100);
+	/*2 times*/
+	*sdram_addr = 0xff;
+	udelay(100);
+	/*3 times*/
+	*sdram_addr = 0xff;
+	udelay(100);
+	/*4 times*/
+	*sdram_addr = 0xff;
+	udelay(100);
+	/*5 times*/
+	*sdram_addr = 0xff;
+	udelay(100);
+	/*6 times*/
+	*sdram_addr = 0xff;
+	udelay(100);
+	/*7 times*/
+	*sdram_addr = 0xff;
+	udelay(100);
+	/*8 times*/
+	*sdram_addr = 0xff;
+	udelay(100);
+
+	/* 0x58636733; mode register write operation */
+	lbc->lsdmr = CFG_LBC_LSDMR_4;
+	asm("sync");
+	*sdram_addr = 0xff;
+	udelay(100);
+
+	lbc->lsdmr = CFG_LBC_LSDMR_5; /* 0x40636733; normal operation */
+	asm("sync");
+	*sdram_addr = 0xff;
+	udelay(100);
+}
+#else
+void sdram_init(void)
+{
+	put("SDRAM on Local Bus is NOT available!\n");
+}
+#endif