1 files changed, 474 insertions, 0 deletions
diff --git a/board/vscom/baltos/board.c b/board/vscom/baltos/board.c
new file mode 100644
index 0000000000..99ca60e2ac
--- /dev/null
+++ b/board/vscom/baltos/board.c
@@ -0,0 +1,474 @@
+/*
+ * board.c
+ *
+ * Board functions for TI AM335X based boards
+ *
+ * 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/arch/mem.h>
+#include <asm/arch/mux.h>
+#include <asm/io.h>
+#include <asm/emif.h>
+#include <asm/gpio.h>
+#include <i2c.h>
+#include <miiphy.h>
+#include <cpsw.h>
+#include <power/tps65217.h>
+#include <power/tps65910.h>
+#include <environment.h>
+#include <watchdog.h>
+#include "board.h"
+
+DECLARE_GLOBAL_DATA_PTR;
+
+/* GPIO that controls power to DDR on EVM-SK */
+#define GPIO_DDR_VTT_EN		7
+#define DIP_S1			44
+
+static struct ctrl_dev *cdev = (struct ctrl_dev *)CTRL_DEVICE_BASE;
+
+static int baltos_set_console(void)
+{
+	int val, i, dips = 0;
+	char buf[7];
+
+	for (i = 0; i < 4; i++) {
+		sprintf(buf, "dip_s%d", i + 1);
+
+		if (gpio_request(DIP_S1 + i, buf)) {
+			printf("failed to export GPIO %d\n", DIP_S1 + i);
+			return 0;
+		}
+
+		if (gpio_direction_input(DIP_S1 + i)) {
+			printf("failed to set GPIO %d direction\n", DIP_S1 + i);
+			return 0;
+		}
+
+		val = gpio_get_value(DIP_S1 + i);
+		dips |= val << i;
+	}
+
+	printf("DIPs: 0x%1x\n", (~dips) & 0xf);
+
+	if ((dips & 0xf) == 0xe)
+		setenv("console", "ttyUSB0,115200n8");
+
+	return 0;
+}
+
+static int read_eeprom(BSP_VS_HWPARAM *header)
+{
+	i2c_set_bus_num(1);
+
+	/* Check if baseboard eeprom is available */
+	if (i2c_probe(CONFIG_SYS_I2C_EEPROM_ADDR)) {
+		puts("Could not probe the EEPROM; something fundamentally "
+			"wrong on the I2C bus.\n");
+		return -ENODEV;
+	}
+
+	/* read the eeprom using i2c */
+	if (i2c_read(CONFIG_SYS_I2C_EEPROM_ADDR, 0, 1, (uchar *)header,
+		     sizeof(BSP_VS_HWPARAM))) {
+		puts("Could not read the EEPROM; something fundamentally"
+			" wrong on the I2C bus.\n");
+		return -EIO;
+	}
+
+	if (header->Magic != 0xDEADBEEF) {
+
+		printf("Incorrect magic number (0x%x) in EEPROM\n",
+				header->Magic);
+
+		/* fill default values */
+		header->SystemId = 211;
+		header->MAC1[0] = 0x00;
+		header->MAC1[1] = 0x00;
+		header->MAC1[2] = 0x00;
+		header->MAC1[3] = 0x00;
+		header->MAC1[4] = 0x00;
+		header->MAC1[5] = 0x01;
+
+		header->MAC2[0] = 0x00;
+		header->MAC2[1] = 0x00;
+		header->MAC2[2] = 0x00;
+		header->MAC2[3] = 0x00;
+		header->MAC2[4] = 0x00;
+		header->MAC2[5] = 0x02;
+
+		header->MAC3[0] = 0x00;
+		header->MAC3[1] = 0x00;
+		header->MAC3[2] = 0x00;
+		header->MAC3[3] = 0x00;
+		header->MAC3[4] = 0x00;
+		header->MAC3[5] = 0x03;
+	}
+
+	return 0;
+}
+
+#if defined(CONFIG_SPL_BUILD) || defined(CONFIG_NOR_BOOT)
+
+static const struct ddr_data ddr3_baltos_data = {
+	.datardsratio0 = MT41K256M16HA125E_RD_DQS,
+	.datawdsratio0 = MT41K256M16HA125E_WR_DQS,
+	.datafwsratio0 = MT41K256M16HA125E_PHY_FIFO_WE,
+	.datawrsratio0 = MT41K256M16HA125E_PHY_WR_DATA,
+};
+
+static const struct cmd_control ddr3_baltos_cmd_ctrl_data = {
+	.cmd0csratio = MT41K256M16HA125E_RATIO,
+	.cmd0iclkout = MT41K256M16HA125E_INVERT_CLKOUT,
+
+	.cmd1csratio = MT41K256M16HA125E_RATIO,
+	.cmd1iclkout = MT41K256M16HA125E_INVERT_CLKOUT,
+
+	.cmd2csratio = MT41K256M16HA125E_RATIO,
+	.cmd2iclkout = MT41K256M16HA125E_INVERT_CLKOUT,
+};
+
+static struct emif_regs ddr3_baltos_emif_reg_data = {
+	.sdram_config = MT41K256M16HA125E_EMIF_SDCFG,
+	.ref_ctrl = MT41K256M16HA125E_EMIF_SDREF,
+	.sdram_tim1 = MT41K256M16HA125E_EMIF_TIM1,
+	.sdram_tim2 = MT41K256M16HA125E_EMIF_TIM2,
+	.sdram_tim3 = MT41K256M16HA125E_EMIF_TIM3,
+	.zq_config = MT41K256M16HA125E_ZQ_CFG,
+	.emif_ddr_phy_ctlr_1 = MT41K256M16HA125E_EMIF_READ_LATENCY,
+};
+
+#ifdef CONFIG_SPL_OS_BOOT
+int spl_start_uboot(void)
+{
+	/* break into full u-boot on 'c' */
+	return (serial_tstc() && serial_getc() == 'c');
+}
+#endif
+
+#define OSC	(V_OSCK/1000000)
+const struct dpll_params dpll_ddr = {
+		266, OSC-1, 1, -1, -1, -1, -1};
+const struct dpll_params dpll_ddr_evm_sk = {
+		303, OSC-1, 1, -1, -1, -1, -1};
+const struct dpll_params dpll_ddr_baltos = {
+		400, OSC-1, 1, -1, -1, -1, -1};
+
+void am33xx_spl_board_init(void)
+{
+	int mpu_vdd;
+	int sil_rev;
+
+	/* Get the frequency */
+	dpll_mpu_opp100.m = am335x_get_efuse_mpu_max_freq(cdev);
+
+	/*
+	 * The GP EVM, IDK and EVM SK use a TPS65910 PMIC.  For all
+	 * MPU frequencies we support we use a CORE voltage of
+	 * 1.1375V.  For MPU voltage we need to switch based on
+	 * the frequency we are running at.
+	 */
+	i2c_set_bus_num(1);
+
+	if (i2c_probe(TPS65910_CTRL_I2C_ADDR)) {
+		puts("i2c: cannot access TPS65910\n");
+		return;
+	}
+
+	/*
+	 * Depending on MPU clock and PG we will need a different
+	 * VDD to drive at that speed.
+	 */
+	sil_rev = readl(&cdev->deviceid) >> 28;
+	mpu_vdd = am335x_get_tps65910_mpu_vdd(sil_rev,
+					      dpll_mpu_opp100.m);
+
+	/* Tell the TPS65910 to use i2c */
+	tps65910_set_i2c_control();
+
+	/* First update MPU voltage. */
+	if (tps65910_voltage_update(MPU, mpu_vdd))
+		return;
+
+	/* Second, update the CORE voltage. */
+	if (tps65910_voltage_update(CORE, TPS65910_OP_REG_SEL_1_1_3))
+		return;
+
+	/* Set CORE Frequencies to OPP100 */
+	do_setup_dpll(&dpll_core_regs, &dpll_core_opp100);
+
+	/* Set MPU Frequency to what we detected now that voltages are set */
+	do_setup_dpll(&dpll_mpu_regs, &dpll_mpu_opp100);
+
+	writel(0x000010ff, PRM_DEVICE_INST + 4);
+}
+
+const struct dpll_params *get_dpll_ddr_params(void)
+{
+	enable_i2c1_pin_mux();
+	i2c_set_bus_num(1);
+
+	return &dpll_ddr_baltos;
+}
+
+void set_uart_mux_conf(void)
+{
+	enable_uart0_pin_mux();
+}
+
+void set_mux_conf_regs(void)
+{
+	enable_board_pin_mux();
+}
+
+const struct ctrl_ioregs ioregs_baltos = {
+	.cm0ioctl		= MT41K256M16HA125E_IOCTRL_VALUE,
+	.cm1ioctl		= MT41K256M16HA125E_IOCTRL_VALUE,
+	.cm2ioctl		= MT41K256M16HA125E_IOCTRL_VALUE,
+	.dt0ioctl		= MT41K256M16HA125E_IOCTRL_VALUE,
+	.dt1ioctl		= MT41K256M16HA125E_IOCTRL_VALUE,
+};
+
+void sdram_init(void)
+{
+	gpio_request(GPIO_DDR_VTT_EN, "ddr_vtt_en");
+	gpio_direction_output(GPIO_DDR_VTT_EN, 1);
+
+	config_ddr(400, &ioregs_baltos,
+		   &ddr3_baltos_data,
+		   &ddr3_baltos_cmd_ctrl_data,
+		   &ddr3_baltos_emif_reg_data, 0);
+}
+#endif
+
+/*
+ * Basic board specific setup.  Pinmux has been handled already.
+ */
+int board_init(void)
+{
+#if defined(CONFIG_HW_WATCHDOG)
+	hw_watchdog_init();
+#endif
+
+	gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE + 0x100;
+#if defined(CONFIG_NOR) || defined(CONFIG_NAND)
+	gpmc_init();
+#endif
+	return 0;
+}
+
+int ft_board_setup(void *blob, bd_t *bd)
+{
+	int node, ret;
+	unsigned char mac_addr[6];
+	BSP_VS_HWPARAM header;
+
+	/* get production data */
+	if (read_eeprom(&header))
+		return 0;
+
+	/* setup MAC1 */
+	mac_addr[0] = header.MAC1[0];
+	mac_addr[1] = header.MAC1[1];
+	mac_addr[2] = header.MAC1[2];
+	mac_addr[3] = header.MAC1[3];
+	mac_addr[4] = header.MAC1[4];
+	mac_addr[5] = header.MAC1[5];
+
+
+	node = fdt_path_offset(blob, "/ocp/ethernet/slave@4a100200");
+	if (node < 0) {
+		printf("no /soc/fman/ethernet path offset\n");
+		return -ENODEV;
+	}
+
+	ret = fdt_setprop(blob, node, "mac-address", &mac_addr, 6);
+	if (ret) {
+		printf("error setting local-mac-address property\n");
+		return -ENODEV;
+	}
+
+	/* setup MAC2 */
+	mac_addr[0] = header.MAC2[0];
+	mac_addr[1] = header.MAC2[1];
+	mac_addr[2] = header.MAC2[2];
+	mac_addr[3] = header.MAC2[3];
+	mac_addr[4] = header.MAC2[4];
+	mac_addr[5] = header.MAC2[5];
+
+	node = fdt_path_offset(blob, "/ocp/ethernet/slave@4a100300");
+	if (node < 0) {
+		printf("no /soc/fman/ethernet path offset\n");
+		return -ENODEV;
+	}
+
+	ret = fdt_setprop(blob, node, "mac-address", &mac_addr, 6);
+	if (ret) {
+		printf("error setting local-mac-address property\n");
+		return -ENODEV;
+	}
+
+	printf("\nFDT was successfully setup\n");
+
+	return 0;
+}
+
+static struct module_pin_mux dip_pin_mux[] = {
+	{OFFSET(gpmc_ad12), (MODE(7) | RXACTIVE )},	/* GPIO1_12 */
+	{OFFSET(gpmc_ad13), (MODE(7)  | RXACTIVE )},	/* GPIO1_13 */
+	{OFFSET(gpmc_ad14), (MODE(7)  | RXACTIVE )},	/* GPIO1_14 */
+	{OFFSET(gpmc_ad15), (MODE(7)  | RXACTIVE )},	/* GPIO1_15 */
+	{-1},
+};
+
+#ifdef CONFIG_BOARD_LATE_INIT
+int board_late_init(void)
+{
+#ifdef CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG
+	BSP_VS_HWPARAM header;
+	char model[4];
+
+	/* get production data */
+	if (read_eeprom(&header)) {
+		sprintf(model, "211");
+	} else {
+		sprintf(model, "%d", header.SystemId);
+		if (header.SystemId == 215) {
+			configure_module_pin_mux(dip_pin_mux);
+			baltos_set_console();
+		}
+	}
+	setenv("board_name", model);
+#endif
+
+	return 0;
+}
+#endif
+
+#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,
+	},
+	{
+		.slave_reg_ofs	= 0x308,
+		.sliver_reg_ofs	= 0xdc0,
+		.phy_addr	= 7,
+	},
+};
+
+static struct cpsw_platform_data cpsw_data = {
+	.mdio_base		= CPSW_MDIO_BASE,
+	.cpsw_base		= CPSW_BASE,
+	.mdio_div		= 0xff,
+	.channels		= 8,
+	.cpdma_reg_ofs		= 0x800,
+	.slaves			= 2,
+	.slave_data		= cpsw_slaves,
+	.active_slave		= 1,
+	.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,
+};
+#endif
+
+#if ((defined(CONFIG_SPL_ETH_SUPPORT) || defined(CONFIG_SPL_USBETH_SUPPORT)) \
+		&& defined(CONFIG_SPL_BUILD)) || \
+	((defined(CONFIG_DRIVER_TI_CPSW) || \
+	  defined(CONFIG_USB_ETHER) && defined(CONFIG_MUSB_GADGET)) && \
+	 !defined(CONFIG_SPL_BUILD))
+int board_eth_init(bd_t *bis)
+{
+	int rv, n = 0;
+	uint8_t mac_addr[6];
+	uint32_t mac_hi, mac_lo;
+	__maybe_unused struct am335x_baseboard_id header;
+
+	/*
+	 * Note here that we're using CPSW1 since that has a 1Gbit PHY while
+	 * CSPW0 has a 100Mbit PHY.
+	 *
+	 * On product, CPSW1 maps to port labeled WAN.
+	 */
+
+	/* try reading mac address from efuse */
+	mac_lo = readl(&cdev->macid1l);
+	mac_hi = readl(&cdev->macid1h);
+	mac_addr[0] = mac_hi & 0xFF;
+	mac_addr[1] = (mac_hi & 0xFF00) >> 8;
+	mac_addr[2] = (mac_hi & 0xFF0000) >> 16;
+	mac_addr[3] = (mac_hi & 0xFF000000) >> 24;
+	mac_addr[4] = mac_lo & 0xFF;
+	mac_addr[5] = (mac_lo & 0xFF00) >> 8;
+
+#if (defined(CONFIG_DRIVER_TI_CPSW) && !defined(CONFIG_SPL_BUILD)) || \
+	(defined(CONFIG_SPL_ETH_SUPPORT) && defined(CONFIG_SPL_BUILD))
+	if (!getenv("ethaddr")) {
+		printf("<ethaddr> not set. Validating first E-fuse MAC\n");
+
+		if (is_valid_ethaddr(mac_addr))
+			eth_setenv_enetaddr("ethaddr", mac_addr);
+	}
+
+#ifdef CONFIG_DRIVER_TI_CPSW
+	writel((GMII1_SEL_RMII | GMII2_SEL_RGMII | RGMII2_IDMODE), &cdev->miisel);
+	cpsw_slaves[1].phy_if = PHY_INTERFACE_MODE_RGMII;
+	rv = cpsw_register(&cpsw_data);
+	if (rv < 0)
+		printf("Error %d registering CPSW switch\n", rv);
+	else
+		n += rv;
+#endif
+
+	/*
+	 *
+	 * CPSW RGMII Internal Delay Mode is not supported in all PVT
+	 * operating points.  So we must set the TX clock delay feature
+	 * in the AR8051 PHY.  Since we only support a single ethernet
+	 * device in U-Boot, we only do this for the first instance.
+	 */
+#define AR8051_PHY_DEBUG_ADDR_REG	0x1d
+#define AR8051_PHY_DEBUG_DATA_REG	0x1e
+#define AR8051_DEBUG_RGMII_CLK_DLY_REG	0x5
+#define AR8051_RGMII_TX_CLK_DLY		0x100
+	const char *devname;
+	devname = miiphy_get_current_dev();
+
+	miiphy_write(devname, 0x7, AR8051_PHY_DEBUG_ADDR_REG,
+			AR8051_DEBUG_RGMII_CLK_DLY_REG);
+	miiphy_write(devname, 0x7, AR8051_PHY_DEBUG_DATA_REG,
+			AR8051_RGMII_TX_CLK_DLY);
+#endif
+	return n;
+}
+#endif