Adding Support for BAV335x boards

1 files changed, 430 insertions, 0 deletions

diff --git a/board/birdland/bav335x/board.c b/board/birdland/bav335x/board.c
new file mode 100644
index 0000000..d1e1c8c
--- /dev/null
+++ b/board/birdland/bav335x/board.c
@@ -0,0 +1,430 @@
+/*
+ * board.c
+ *
+ * Board functions for Birdland Audio BAV335x Network Processor
+ *
+ * Copyright (c) 2012-2014 Birdland Audio - http://birdland.com/oem
+ *
+ * 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/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 <environment.h>
+#include "board.h"
+
+DECLARE_GLOBAL_DATA_PTR;
+
+/* GPIO that controls power to DDR on EVM-SK */
+#define GPIO_DDR_VTT_EN		7
+
+static __maybe_unused struct ctrl_dev *cdev =
+		(struct ctrl_dev *)CTRL_DEVICE_BASE;
+
+
+
+/*
+ * Read header information from EEPROM into global structure.
+ */
+static int read_eeprom(struct board_eeconfig *header)
+{
+	/* Check if baseboard eeprom is available */
+	if (i2c_probe(CONFIG_SYS_I2C_EEPROM_ADDR))
+		return -ENODEV;
+
+	/* read the eeprom using i2c */
+	if (i2c_read(CONFIG_SYS_I2C_EEPROM_ADDR, 0, 2, (uchar *)header,
+		     sizeof(struct board_eeconfig)))
+		return -EIO;
+
+	if (header->magic != BOARD_MAGIC) {
+		/* read the i2c eeprom again using only a 1 byte address */
+		if (i2c_read(CONFIG_SYS_I2C_EEPROM_ADDR, 0, 1, (uchar *)header,
+			     sizeof(struct board_eeconfig)))
+			return -EIO;
+
+		if (header->magic != BOARD_MAGIC)
+			return -EINVAL;
+	}
+	return 0;
+}
+
+
+
+
+enum board_type get_board_type(bool debug)
+{
+	int ecode;
+	struct board_eeconfig header;
+
+	ecode = read_eeprom(&header);
+	if (ecode == 0) {
+		if (header.version[1] == 'A') {
+			if (debug)
+				puts("=== Detected Board model BAV335x Rev.A");
+			return BAV335A;
+		} else if (header.version[1] == 'B') {
+			if (debug)
+				puts("=== Detected Board model BAV335x Rev.B");
+			return BAV335B;
+		} else if (debug) {
+			puts("### Un-known board model in serial-EE\n");
+		}
+	} else if (debug) {
+		switch (ecode) {
+		case -ENODEV:
+			puts("### Board doesn't have a serial-EE\n");
+			break;
+		case -EINVAL:
+			puts("### Board serial-EE signature is incorrect.\n");
+			break;
+		default:
+			puts("### IO Error reading serial-EE.\n");
+			break;
+		}
+	}
+
+#if (CONFIG_BAV_VERSION == 1)
+	if (debug)
+		puts("### Selecting BAV335A as per config\n");
+	return BAV335A;
+#elif (CONFIG_BAV_VERSION == 2)
+	if (debug)
+		puts("### Selecting BAV335B as per config\n");
+	return BAV335B;
+#endif
+#if (NOT_DEFINED == 2)
+#error "SHOULD NEVER DISPLAY THIS"
+#endif
+
+	if (debug)
+		puts("### Defaulting to model BAV335x Rev.B\n");
+	return BAV335B;
+}
+
+
+
+#ifndef CONFIG_SKIP_LOWLEVEL_INIT
+static const struct ddr_data ddr3_bav335x_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_bav335x_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_bav335x_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' */
+	if (serial_tstc() && serial_getc() == 'c')
+		return 1;
+
+#ifdef CONFIG_SPL_ENV_SUPPORT
+	env_init();
+	env_relocate_spec();
+	if (getenv_yesno("boot_os") != 1)
+		return 1;
+#endif
+
+	return 0;
+}
+#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_bone_black = {
+		400, OSC-1, 1, -1, -1, -1, -1};
+
+void am33xx_spl_board_init(void)
+{
+	/* debug print detect status */
+	(void)get_board_type(true);
+
+	/* Get the frequency */
+	/* dpll_mpu_opp100.m = am335x_get_efuse_mpu_max_freq(cdev); */
+	dpll_mpu_opp100.m = MPUPLL_M_1000;
+
+	if (i2c_probe(TPS65217_CHIP_PM))
+		return;
+
+	/* Set the USB Current Limit */
+	if (tps65217_reg_write(TPS65217_PROT_LEVEL_NONE, TPS65217_POWER_PATH,
+			       TPS65217_USB_INPUT_CUR_LIMIT_1800MA,
+			       TPS65217_USB_INPUT_CUR_LIMIT_MASK))
+		puts("! tps65217_reg_write: could not set USB limit\n");
+
+	/* Set the Core Voltage (DCDC3) to 1.125V */
+	if (tps65217_voltage_update(TPS65217_DEFDCDC3,
+				    TPS65217_DCDC_VOLT_SEL_1125MV)) {
+		puts("! tps65217_reg_write: could not set Core Voltage\n");
+		return;
+	}
+
+	/* Set CORE Frequencies to OPP100 */
+	do_setup_dpll(&dpll_core_regs, &dpll_core_opp100);
+
+	/* Set the MPU Voltage (DCDC2) */
+	if (tps65217_voltage_update(TPS65217_DEFDCDC2,
+				    TPS65217_DCDC_VOLT_SEL_1325MV)) {
+		puts("! tps65217_reg_write: could not set MPU Voltage\n");
+		return;
+	}
+
+	/*
+	 * Set LDO3, LDO4 output voltage to 3.3V for Beaglebone.
+	 * Set LDO3 to 1.8V and LDO4 to 3.3V for Beaglebone Black.
+	 */
+	if (tps65217_reg_write(TPS65217_PROT_LEVEL_2, TPS65217_DEFLS1,
+			       TPS65217_LDO_VOLTAGE_OUT_1_8, TPS65217_LDO_MASK))
+		puts("! tps65217_reg_write: could not set LDO3\n");
+
+	if (tps65217_reg_write(TPS65217_PROT_LEVEL_2, TPS65217_DEFLS2,
+			       TPS65217_LDO_VOLTAGE_OUT_3_3, TPS65217_LDO_MASK))
+		puts("! tps65217_reg_write: could not set LDO4\n");
+
+	/* Set MPU Frequency to what we detected now that voltages are set */
+	do_setup_dpll(&dpll_mpu_regs, &dpll_mpu_opp100);
+}
+
+const struct dpll_params *get_dpll_ddr_params(void)
+{
+	enable_i2c0_pin_mux();
+	i2c_init(CONFIG_SYS_OMAP24_I2C_SPEED, CONFIG_SYS_OMAP24_I2C_SLAVE);
+
+	return &dpll_ddr_bone_black;
+}
+
+void set_uart_mux_conf(void)
+{
+#if CONFIG_CONS_INDEX == 1
+	enable_uart0_pin_mux();
+#elif CONFIG_CONS_INDEX == 2
+	enable_uart1_pin_mux();
+#elif CONFIG_CONS_INDEX == 3
+	enable_uart2_pin_mux();
+#elif CONFIG_CONS_INDEX == 4
+	enable_uart3_pin_mux();
+#elif CONFIG_CONS_INDEX == 5
+	enable_uart4_pin_mux();
+#elif CONFIG_CONS_INDEX == 6
+	enable_uart5_pin_mux();
+#endif
+}
+
+void set_mux_conf_regs(void)
+{
+	enum board_type board;
+
+	board = get_board_type(false);
+	enable_board_pin_mux(board);
+}
+
+const struct ctrl_ioregs ioregs_bonelt = {
+	.cm0ioctl		= MT41K256M16HA125E_IOCTRL_VALUE,
+	.cm1ioctl		= MT41K256M16HA125E_IOCTRL_VALUE,
+	.cm2ioctl		= MT41K256M16HA125E_IOCTRL_VALUE,
+	.dt0ioctl		= MT41K256M16HA125E_IOCTRL_VALUE,
+	.dt1ioctl		= MT41K256M16HA125E_IOCTRL_VALUE,
+};
+
+
+void sdram_init(void)
+{
+	config_ddr(400, &ioregs_bonelt,
+		   &ddr3_bav335x_data,
+		   &ddr3_bav335x_cmd_ctrl_data,
+		   &ddr3_bav335x_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;
+}
+
+#ifdef CONFIG_BOARD_LATE_INIT
+int board_late_init(void)
+{
+#ifdef CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG
+	setenv("board_name", "BAV335xB");
+	setenv("board_rev", "B"); /* Fix me, but why bother.. */
+#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	= 1,
+	},
+};
+
+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			= 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,
+};
+#endif
+
+
+/*
+ * This function will:
+ * Perform fixups to the PHY present on certain boards.  We only need this
+ * function in:
+ * - SPL with either CPSW or USB ethernet support
+ * - Full U-Boot, with either CPSW or USB ethernet
+ * Build in only these cases to avoid warnings about unused variables
+ * when we build an SPL that has neither option but full U-Boot will.
+ */
+#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 ecode, rv, n;
+	uint8_t mac_addr[6];
+	struct board_eeconfig header;
+	__maybe_unused enum board_type board;
+
+	/* Default manufacturing address; used when no EE or invalid */
+	n = 0;
+	mac_addr[0] = 0;
+	mac_addr[1] = 0x20;
+	mac_addr[2] = 0x18;
+	mac_addr[3] = 0x1C;
+	mac_addr[4] = 0x00;
+	mac_addr[5] = 0x01;
+
+	ecode = read_eeprom(&header);
+	/* if we have a valid EE, get mac address from there */
+	if ((ecode == 0) &&
+	    is_valid_ether_addr((const u8 *)&header.mac_addr[0][0])) {
+		memcpy(mac_addr, (const void *)&header.mac_addr[0][0], 6);
+	}
+
+
+#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_ether_addr(mac_addr))
+			eth_setenv_enetaddr("ethaddr", mac_addr);
+	}
+
+#ifdef CONFIG_DRIVER_TI_CPSW
+
+	board = get_board_type(false);
+
+	/* Rev.A uses 10/100 PHY in mii mode */
+	if (board == BAV335A) {
+		writel(MII_MODE_ENABLE, &cdev->miisel);
+		cpsw_slaves[0].phy_if = PHY_INTERFACE_MODE_MII;
+		cpsw_slaves[1].phy_if = PHY_INTERFACE_MODE_MII;
+	}
+	/* Rev.B (default) uses GB PHY in rmii mode */
+	else {
+		writel((RGMII_MODE_ENABLE | RGMII_INT_DELAY), &cdev->miisel);
+		cpsw_slaves[0].phy_if = 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
+
+#endif
+
+	return n;
+}
+#endif