1 files changed, 283 insertions, 0 deletions
diff --git a/board/siemens/draco/board.c b/board/siemens/draco/board.c
new file mode 100644
index 0000000..9be2e34
--- /dev/null
+++ b/board/siemens/draco/board.c
@@ -0,0 +1,283 @@
+/*
+ * Board functions for TI AM335X based draco board
+ * (C) Copyright 2013 Siemens Schweiz AG
+ * (C) Heiko Schocher, DENX Software Engineering, hs@denx.de.
+ *
+ * Based on:
+ *
+ * Board functions for TI AM335X based boards
+ * u-boot:/board/ti/am335x/board.c
+ *
+ * Copyright (C) 2011, Texas Instruments, Incorporated - http://www.ti.com/
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <common.h>
+#include <errno.h>
+#include <spl.h>
+#include <asm/arch/cpu.h>
+#include <asm/arch/hardware.h>
+#include <asm/arch/omap.h>
+#include <asm/arch/ddr_defs.h>
+#include <asm/arch/clock.h>
+#include <asm/arch/gpio.h>
+#include <asm/arch/mmc_host_def.h>
+#include <asm/arch/sys_proto.h>
+#include <asm/io.h>
+#include <asm/emif.h>
+#include <asm/gpio.h>
+#include <i2c.h>
+#include <miiphy.h>
+#include <cpsw.h>
+#include <watchdog.h>
+#include "board.h"
+#include "../common/factoryset.h"
+
+DECLARE_GLOBAL_DATA_PTR;
+
+#ifdef CONFIG_SPL_BUILD
+static struct draco_baseboard_id __attribute__((section(".data"))) settings;
+
+#if DDR_PLL_FREQ == 303
+/* Default@303MHz-i0 */
+const struct ddr3_data ddr3_default = {
+	0x33524444, 0x56312e35, 0x0080, 0x0000, 0x003A, 0x003F, 0x009F,
+	0x0079, 0x0888A39B, 0x26247FDA, 0x501F821F, 0x00100206, 0x61A44A32,
+	0x0000093B, 0x0000014A,
+	"default name @303MHz           \0",
+	"default marking                \0",
+};
+#elif DDR_PLL_FREQ == 400
+/* Default@400MHz-i0 */
+const struct ddr3_data ddr3_default = {
+	0x33524444, 0x56312e35, 0x0080, 0x0000, 0x0039, 0x0046, 0x00ab,
+	0x0080, 0x0AAAA4DB, 0x26307FDA, 0x501F821F, 0x00100207, 0x61A45232,
+	0x00000618, 0x0000014A,
+	"default name @400MHz           \0",
+	"default marking                \0",
+};
+#endif
+
+static void set_default_ddr3_timings(void)
+{
+	printf("Set default DDR3 settings\n");
+	settings.ddr3 = ddr3_default;
+}
+
+static void print_ddr3_timings(void)
+{
+	printf("\nDDR3\n");
+	printf("clock:\t\t%d MHz\n", DDR_PLL_FREQ);
+	printf("device:\t\t%s\n", settings.ddr3.manu_name);
+	printf("marking:\t%s\n", settings.ddr3.manu_marking);
+	printf("timing parameters\n");
+	printf("diff\teeprom\tdefault\n");
+	PRINTARGS(magic);
+	PRINTARGS(version);
+	PRINTARGS(ddr3_sratio);
+	PRINTARGS(iclkout);
+
+	PRINTARGS(dt0rdsratio0);
+	PRINTARGS(dt0wdsratio0);
+	PRINTARGS(dt0fwsratio0);
+	PRINTARGS(dt0wrsratio0);
+
+	PRINTARGS(sdram_tim1);
+	PRINTARGS(sdram_tim2);
+	PRINTARGS(sdram_tim3);
+
+	PRINTARGS(emif_ddr_phy_ctlr_1);
+
+	PRINTARGS(sdram_config);
+	PRINTARGS(ref_ctrl);
+	PRINTARGS(ioctr_val);
+}
+
+static void print_chip_data(void)
+{
+	printf("\nCPU BOARD\n");
+	printf("device: \t'%s'\n", settings.chip.sdevname);
+	printf("hw version: \t'%s'\n", settings.chip.shwver);
+}
+#endif /* CONFIG_SPL_BUILD */
+
+/*
+ * Read header information from EEPROM into global structure.
+ */
+static int read_eeprom(void)
+{
+	/* Check if baseboard eeprom is available */
+	if (i2c_probe(CONFIG_SYS_I2C_EEPROM_ADDR)) {
+		printf("Could not probe the EEPROM; something fundamentally wrong on the I2C bus.\n");
+		return 1;
+	}
+
+#ifdef CONFIG_SPL_BUILD
+	/* Read Siemens eeprom data (DDR3) */
+	if (i2c_read(CONFIG_SYS_I2C_EEPROM_ADDR, EEPROM_ADDR_DDR3, 2,
+		     (uchar *)&settings.ddr3, sizeof(struct ddr3_data))) {
+		printf("Could not read the EEPROM; something fundamentally wrong on the I2C bus.\nUse default DDR3 timings\n");
+		set_default_ddr3_timings();
+	}
+	/* Read Siemens eeprom data (CHIP) */
+	if (i2c_read(CONFIG_SYS_I2C_EEPROM_ADDR, EEPROM_ADDR_CHIP, 2,
+		     (uchar *)&settings.chip, sizeof(settings.chip)))
+		printf("Could not read chip settings\n");
+
+	if (ddr3_default.magic == settings.ddr3.magic &&
+	    ddr3_default.version == settings.ddr3.version) {
+		printf("Using DDR3 settings from EEPROM\n");
+	} else {
+		if (ddr3_default.magic != settings.ddr3.magic)
+			printf("Warning: No valid DDR3 data in eeprom.\n");
+		if (ddr3_default.version != settings.ddr3.version)
+			printf("Warning: DDR3 data version does not match.\n");
+
+		printf("Using default settings\n");
+		set_default_ddr3_timings();
+	}
+
+	if (MAGIC_CHIP == settings.chip.magic)
+		print_chip_data();
+	else
+		printf("Warning: No chip data in eeprom\n");
+
+	print_ddr3_timings();
+#endif
+	return 0;
+}
+
+#ifdef CONFIG_SPL_BUILD
+static void board_init_ddr(void)
+{
+struct emif_regs draco_ddr3_emif_reg_data = {
+	.zq_config = 0x50074BE4,
+};
+
+struct ddr_data draco_ddr3_data = {
+};
+
+struct cmd_control draco_ddr3_cmd_ctrl_data = {
+};
+
+struct ctrl_ioregs draco_ddr3_ioregs = {
+};
+
+	/* pass values from eeprom */
+	draco_ddr3_emif_reg_data.sdram_tim1 = settings.ddr3.sdram_tim1;
+	draco_ddr3_emif_reg_data.sdram_tim2 = settings.ddr3.sdram_tim2;
+	draco_ddr3_emif_reg_data.sdram_tim3 = settings.ddr3.sdram_tim3;
+	draco_ddr3_emif_reg_data.emif_ddr_phy_ctlr_1 =
+		settings.ddr3.emif_ddr_phy_ctlr_1;
+	draco_ddr3_emif_reg_data.sdram_config = settings.ddr3.sdram_config;
+	draco_ddr3_emif_reg_data.ref_ctrl = settings.ddr3.ref_ctrl;
+
+	draco_ddr3_data.datardsratio0 = settings.ddr3.dt0rdsratio0;
+	draco_ddr3_data.datawdsratio0 = settings.ddr3.dt0wdsratio0;
+	draco_ddr3_data.datafwsratio0 = settings.ddr3.dt0fwsratio0;
+	draco_ddr3_data.datawrsratio0 = settings.ddr3.dt0wrsratio0;
+
+	draco_ddr3_cmd_ctrl_data.cmd0csratio = settings.ddr3.ddr3_sratio;
+	draco_ddr3_cmd_ctrl_data.cmd0iclkout = settings.ddr3.iclkout;
+	draco_ddr3_cmd_ctrl_data.cmd1csratio = settings.ddr3.ddr3_sratio;
+	draco_ddr3_cmd_ctrl_data.cmd1iclkout = settings.ddr3.iclkout;
+	draco_ddr3_cmd_ctrl_data.cmd2csratio = settings.ddr3.ddr3_sratio;
+	draco_ddr3_cmd_ctrl_data.cmd2iclkout = settings.ddr3.iclkout;
+
+	draco_ddr3_ioregs.cm0ioctl = settings.ddr3.ioctr_val,
+	draco_ddr3_ioregs.cm1ioctl = settings.ddr3.ioctr_val,
+	draco_ddr3_ioregs.cm2ioctl = settings.ddr3.ioctr_val,
+	draco_ddr3_ioregs.dt0ioctl = settings.ddr3.ioctr_val,
+	draco_ddr3_ioregs.dt1ioctl = settings.ddr3.ioctr_val,
+
+	config_ddr(DDR_PLL_FREQ, &draco_ddr3_ioregs, &draco_ddr3_data,
+		   &draco_ddr3_cmd_ctrl_data, &draco_ddr3_emif_reg_data, 0);
+}
+
+static void spl_siemens_board_init(void)
+{
+	return;
+}
+#endif /* if def CONFIG_SPL_BUILD */
+
+#if (defined(CONFIG_DRIVER_TI_CPSW) && !defined(CONFIG_SPL_BUILD)) || \
+	(defined(CONFIG_SPL_ETH_SUPPORT) && defined(CONFIG_SPL_BUILD))
+static void cpsw_control(int enabled)
+{
+	/* VTP can be added here */
+
+	return;
+}
+
+static struct cpsw_slave_data cpsw_slaves[] = {
+	{
+		.slave_reg_ofs	= 0x208,
+		.sliver_reg_ofs	= 0xd80,
+		.phy_addr	= 0,
+		.phy_if		= PHY_INTERFACE_MODE_MII,
+	},
+};
+
+static struct cpsw_platform_data cpsw_data = {
+	.mdio_base		= CPSW_MDIO_BASE,
+	.cpsw_base		= CPSW_BASE,
+	.mdio_div		= 0xff,
+	.channels		= 4,
+	.cpdma_reg_ofs		= 0x800,
+	.slaves			= 1,
+	.slave_data		= cpsw_slaves,
+	.ale_reg_ofs		= 0xd00,
+	.ale_entries		= 1024,
+	.host_port_reg_ofs	= 0x108,
+	.hw_stats_reg_ofs	= 0x900,
+	.bd_ram_ofs		= 0x2000,
+	.mac_control		= (1 << 5),
+	.control		= cpsw_control,
+	.host_port_num		= 0,
+	.version		= CPSW_CTRL_VERSION_2,
+};
+
+#if defined(CONFIG_DRIVER_TI_CPSW) || \
+	(defined(CONFIG_USB_ETHER) && defined(CONFIG_MUSB_GADGET))
+int board_eth_init(bd_t *bis)
+{
+	struct ctrl_dev *cdev = (struct ctrl_dev *)CTRL_DEVICE_BASE;
+	int n = 0;
+	int rv;
+
+	factoryset_setenv();
+
+	/* Set rgmii mode and enable rmii clock to be sourced from chip */
+	writel((RMII_MODE_ENABLE | RMII_CHIPCKL_ENABLE), &cdev->miisel);
+
+	rv = cpsw_register(&cpsw_data);
+	if (rv < 0)
+		printf("Error %d registering CPSW switch\n", rv);
+	else
+		n += rv;
+	return n;
+}
+
+static int do_switch_reset(cmd_tbl_t *cmdtp, int flag, int argc,
+			   char *const argv[])
+{
+	/* Reset SMSC LAN9303 switch for default configuration */
+	gpio_request(GPIO_LAN9303_NRST, "nRST");
+	gpio_direction_output(GPIO_LAN9303_NRST, 0);
+	/* assert active low reset for 200us */
+	udelay(200);
+	gpio_set_value(GPIO_LAN9303_NRST, 1);
+
+	return 0;
+};
+
+U_BOOT_CMD(
+	switch_rst, CONFIG_SYS_MAXARGS, 1,	do_switch_reset,
+	"Reset LAN9303 switch via its reset pin",
+	""
+);
+#endif /* #if defined(CONFIG_DRIVER_TI_CPSW) */
+#endif /* #if (defined(CONFIG_DRIVER_TI_CPSW) && !defined(CONFIG_SPL_BUILD)) */
+
+#include "../common/board.c"