1 files changed, 243 insertions, 0 deletions
diff --git a/roms/u-boot/board/sbc8349/sbc8349.c b/roms/u-boot/board/sbc8349/sbc8349.c
new file mode 100644
index 000000000..b440a0b17
--- /dev/null
+++ b/roms/u-boot/board/sbc8349/sbc8349.c
@@ -0,0 +1,243 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * sbc8349.c -- WindRiver SBC8349 board support.
+ * Copyright (c) 2006-2007 Wind River Systems, Inc.
+ *
+ * Paul Gortmaker <paul.gortmaker@windriver.com>
+ * Based on board/mpc8349emds/mpc8349emds.c (and previous 834x releases.)
+ */
+
+#include <common.h>
+#include <fdt_support.h>
+#include <init.h>
+#include <ioports.h>
+#include <mpc83xx.h>
+#include <asm/bitops.h>
+#include <asm/global_data.h>
+#include <asm/mpc8349_pci.h>
+#include <i2c.h>
+#include <spd_sdram.h>
+#include <miiphy.h>
+#if defined(CONFIG_OF_LIBFDT)
+#include <linux/libfdt.h>
+#endif
+#include <linux/delay.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+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
+
+#ifdef CONFIG_BOARD_EARLY_INIT_F
+int board_early_init_f (void)
+{
+	return 0;
+}
+#endif
+
+#define ns2clk(ns) (ns / (1000000000 / CONFIG_8349_CLKIN) + 1)
+
+int dram_init(void)
+{
+	volatile immap_t *im = (immap_t *)CONFIG_SYS_IMMR;
+	u32 msize = 0;
+
+	if ((im->sysconf.immrbar & IMMRBAR_BASE_ADDR) != (u32)im)
+		return -1;
+
+	/* DDR SDRAM - Main SODIMM */
+	im->sysconf.ddrlaw[0].bar = CONFIG_SYS_SDRAM_BASE & LAWBAR_BAR;
+#if defined(CONFIG_SPD_EEPROM)
+	msize = spd_sdram();
+#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
+	/* set total bus SDRAM size(bytes)  -- DDR */
+	gd->ram_size = msize * 1024 * 1024;
+
+	return 0;
+}
+
+#if !defined(CONFIG_SPD_EEPROM)
+/*************************************************************************
+ *  fixed sdram init -- doesn't use serial presence detect.
+ ************************************************************************/
+int fixed_sdram(void)
+{
+	volatile immap_t *im = (immap_t *)CONFIG_SYS_IMMR;
+	u32 msize = CONFIG_SYS_DDR_SIZE;
+	u32 ddr_size = msize << 20;	/* DDR size in bytes */
+	u32 ddr_size_log2 = __ilog2(msize);
+
+	im->sysconf.ddrlaw[0].bar = CONFIG_SYS_SDRAM_BASE & 0xfffff000;
+	im->sysconf.ddrlaw[0].ar = LAWAR_EN | ((ddr_size_log2 - 1) & LAWAR_SIZE);
+
+#if (CONFIG_SYS_DDR_SIZE != 256)
+#warning Currently any ddr size other than 256 is not supported
+#endif
+
+#if ((CONFIG_SYS_SDRAM_BASE & 0x00FFFFFF) != 0)
+#warning Chip select bounds is only configurable in 16MB increments
+#endif
+	im->ddr.csbnds[2].csbnds =
+		((CONFIG_SYS_SDRAM_BASE >> CSBNDS_SA_SHIFT) & CSBNDS_SA) |
+		(((CONFIG_SYS_SDRAM_BASE + ddr_size - 1) >>
+				CSBNDS_EA_SHIFT) & CSBNDS_EA);
+	im->ddr.cs_config[2] = CONFIG_SYS_DDR_CS2_CONFIG;
+
+	/* currently we use only one CS, so disable the other banks */
+	im->ddr.cs_config[0] = 0;
+	im->ddr.cs_config[1] = 0;
+	im->ddr.cs_config[3] = 0;
+
+	im->ddr.timing_cfg_1 = CONFIG_SYS_DDR_TIMING_1;
+	im->ddr.timing_cfg_2 = CONFIG_SYS_DDR_TIMING_2;
+
+	im->ddr.sdram_cfg =
+		SDRAM_CFG_SREN
+#if defined(CONFIG_DDR_2T_TIMING)
+		| SDRAM_CFG_2T_EN
+#endif
+		| SDRAM_CFG_SDRAM_TYPE_DDR1;
+#if defined (CONFIG_DDR_32BIT)
+	/* for 32-bit mode burst length is 8 */
+	im->ddr.sdram_cfg |= (SDRAM_CFG_32_BE | SDRAM_CFG_8_BE);
+#endif
+	im->ddr.sdram_mode = CONFIG_SYS_DDR_MODE;
+
+	im->ddr.sdram_interval = CONFIG_SYS_DDR_INTERVAL;
+	udelay(200);
+
+	/* enable DDR controller */
+	im->ddr.sdram_cfg |= SDRAM_CFG_MEM_EN;
+	return msize;
+}
+#endif/*!CONFIG_SYS_SPD_EEPROM*/
+
+
+int checkboard (void)
+{
+	puts("Board: Wind River SBC834x\n");
+	return 0;
+}
+
+/*
+ * if board is fitted with SDRAM
+ */
+#if defined(CONFIG_SYS_BR2_PRELIM)  \
+	&& defined(CONFIG_SYS_OR2_PRELIM) \
+	&& defined(CONFIG_SYS_LBLAWBAR2_PRELIM) \
+	&& defined(CONFIG_SYS_LBLAWAR2_PRELIM)
+/*
+ * Initialize SDRAM memory on the Local Bus.
+ */
+
+void sdram_init(void)
+{
+	volatile immap_t *immap = (immap_t *)CONFIG_SYS_IMMR;
+	volatile fsl_lbc_t *lbc = &immap->im_lbc;
+	uint *sdram_addr = (uint *)CONFIG_SYS_LBC_SDRAM_BASE;
+	const u32 lsdmr_common = LSDMR_RFEN | LSDMR_BSMA1516 | LSDMR_RFCR8 |
+				 LSDMR_PRETOACT6 | LSDMR_ACTTORW3 | LSDMR_BL8 |
+				 LSDMR_WRC3 | LSDMR_CL3;
+
+	puts("\n   SDRAM on Local Bus: ");
+	print_size (CONFIG_SYS_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 = 0x00000000;
+	/* LB refresh timer prescal, 266MHz/32 */
+	lbc->mrtpr = 0x20000000;
+	/* LB sdram refresh timer, about 6us */
+	lbc->lsrt = 0x32000000;
+	asm("sync");
+
+	/*
+	 * Configure the SDRAM controller Machine Mode Register.
+	 */
+	/* 0x40636733; normal operation */
+	lbc->lsdmr = lsdmr_common | LSDMR_OP_NORMAL;
+
+	/* 0x68636733; precharge all the banks */
+	lbc->lsdmr = lsdmr_common | LSDMR_OP_PCHALL;
+	asm("sync");
+	*sdram_addr = 0xff;
+	udelay(100);
+
+	/* 0x48636733; auto refresh */
+	lbc->lsdmr = lsdmr_common | LSDMR_OP_ARFRSH;
+	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 = lsdmr_common | LSDMR_OP_MRW;
+	asm("sync");
+	*sdram_addr = 0xff;
+	udelay(100);
+
+	/* 0x40636733; normal operation */
+	lbc->lsdmr = lsdmr_common | LSDMR_OP_NORMAL;
+	asm("sync");
+	*sdram_addr = 0xff;
+	udelay(100);
+}
+#else
+void sdram_init(void)
+{
+	puts("   SDRAM on Local Bus: Disabled in config\n");
+}
+#endif
+
+#if defined(CONFIG_OF_BOARD_SETUP)
+int ft_board_setup(void *blob, struct bd_info *bd)
+{
+	ft_cpu_setup(blob, bd);
+#ifdef CONFIG_PCI
+	ft_pci_setup(blob, bd);
+#endif
+
+	return 0;
+}
+#endif