board/tcl/sl50/board.c

/*
 * board.c
 *
 * Board functions for TCL SL50 board
 *
 * 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/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;

static struct ctrl_dev *cdev = (struct ctrl_dev *)CTRL_DEVICE_BASE;

#ifndef CONFIG_SKIP_LOWLEVEL_INIT

static const struct ddr_data ddr3_sl50_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_sl50_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_sl50_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_load();
	if (getenv_yesno("boot_os") != 1)
		return 1;
#endif

	return 0;
}
#endif

#define OSC	(V_OSCK/1000000)
const struct dpll_params dpll_ddr_sl50 = {
		400, OSC-1, 1, -1, -1, -1, -1};

void am33xx_spl_board_init(void)
{
	int mpu_vdd;

	/* Get the frequency */
	dpll_mpu_opp100.m = am335x_get_efuse_mpu_max_freq(cdev);

	/* BeagleBone PMIC Code */
	int usb_cur_lim;

	if (i2c_probe(TPS65217_CHIP_PM))
		return;

	/*
	 * Increase USB current limit to 1300mA or 1800mA and set
	 * the MPU voltage controller as needed.
	 */
	if (dpll_mpu_opp100.m == MPUPLL_M_1000) {
		usb_cur_lim = TPS65217_USB_INPUT_CUR_LIMIT_1800MA;
		mpu_vdd = TPS65217_DCDC_VOLT_SEL_1325MV;
	} else {
		usb_cur_lim = TPS65217_USB_INPUT_CUR_LIMIT_1300MA;
		mpu_vdd = TPS65217_DCDC_VOLT_SEL_1275MV;
	}

	if (tps65217_reg_write(TPS65217_PROT_LEVEL_NONE,
			       TPS65217_POWER_PATH,
			       usb_cur_lim,
			       TPS65217_USB_INPUT_CUR_LIMIT_MASK))
		puts("tps65217_reg_write failure\n");

	/* Set DCDC3 (CORE) voltage to 1.125V */
	if (tps65217_voltage_update(TPS65217_DEFDCDC3,
				    TPS65217_DCDC_VOLT_SEL_1125MV)) {
		puts("tps65217_voltage_update failure\n");
		return;
	}

	/* Set CORE Frequencies to OPP100 */
	do_setup_dpll(&dpll_core_regs, &dpll_core_opp100);

	/* Set DCDC2 (MPU) voltage */
	if (tps65217_voltage_update(TPS65217_DEFDCDC2, mpu_vdd)) {
		puts("tps65217_voltage_update failure\n");
		return;
	}

	/*
	 * Set LDO3 to 1.8V and LDO4 to 3.3V
	 */
	if (tps65217_reg_write(TPS65217_PROT_LEVEL_2,
			       TPS65217_DEFLS1,
			       TPS65217_LDO_VOLTAGE_OUT_1_8,
			       TPS65217_LDO_MASK))
		puts("tps65217_reg_write failure\n");

	if (tps65217_reg_write(TPS65217_PROT_LEVEL_2,
			       TPS65217_DEFLS2,
			       TPS65217_LDO_VOLTAGE_OUT_3_3,
			       TPS65217_LDO_MASK))
		puts("tps65217_reg_write failure\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_sl50;
}

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)
{
	enable_board_pin_mux();
}

const struct ctrl_ioregs ioregs_evmsk = {
	.cm0ioctl		= MT41J128MJT125_IOCTRL_VALUE,
	.cm1ioctl		= MT41J128MJT125_IOCTRL_VALUE,
	.cm2ioctl		= MT41J128MJT125_IOCTRL_VALUE,
	.dt0ioctl		= MT41J128MJT125_IOCTRL_VALUE,
	.dt1ioctl		= MT41J128MJT125_IOCTRL_VALUE,
};

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,
};

const struct ctrl_ioregs ioregs_evm15 = {
	.cm0ioctl		= MT41J512M8RH125_IOCTRL_VALUE,
	.cm1ioctl		= MT41J512M8RH125_IOCTRL_VALUE,
	.cm2ioctl		= MT41J512M8RH125_IOCTRL_VALUE,
	.dt0ioctl		= MT41J512M8RH125_IOCTRL_VALUE,
	.dt1ioctl		= MT41J512M8RH125_IOCTRL_VALUE,
};

const struct ctrl_ioregs ioregs = {
	.cm0ioctl		= MT47H128M16RT25E_IOCTRL_VALUE,
	.cm1ioctl		= MT47H128M16RT25E_IOCTRL_VALUE,
	.cm2ioctl		= MT47H128M16RT25E_IOCTRL_VALUE,
	.dt0ioctl		= MT47H128M16RT25E_IOCTRL_VALUE,
	.dt1ioctl		= MT47H128M16RT25E_IOCTRL_VALUE,
};

void sdram_init(void)
{
	config_ddr(400, &ioregs_bonelt,
		   &ddr3_sl50_data,
		   &ddr3_sl50_cmd_ctrl_data,
		   &ddr3_sl50_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;
	return 0;
}

#ifdef CONFIG_BOARD_LATE_INIT
int board_late_init(void)
{
	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:
 * Read the eFuse for MAC addresses, and set ethaddr/eth1addr/usbnet_devaddr
 * in the environment
 * 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 rv, n = 0;
	uint8_t mac_addr[6];
	uint32_t mac_hi, mac_lo;

	/* try reading mac address from efuse */
	mac_lo = readl(&cdev->macid0l);
	mac_hi = readl(&cdev->macid0h);
	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_env_set_enetaddr("ethaddr", mac_addr);
	}

#ifdef CONFIG_DRIVER_TI_CPSW

	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 (!getenv("eth1addr")) {
		if (is_valid_ethaddr(mac_addr))
			eth_env_set_enetaddr("eth1addr", mac_addr);
	}


	writel(MII_MODE_ENABLE, &cdev->miisel);
	cpsw_slaves[0].phy_if = cpsw_slaves[1].phy_if =
				PHY_INTERFACE_MODE_MII;

	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

#endif
#if defined(CONFIG_USB_ETHER) && \
	(!defined(CONFIG_SPL_BUILD) || defined(CONFIG_SPL_USBETH_SUPPORT))
	if (is_valid_ether_addr(mac_addr))
		eth_env_set_enetaddr("usbnet_devaddr", mac_addr);

	rv = usb_eth_initialize(bis);
	if (rv < 0)
		printf("Error %d registering USB_ETHER\n", rv);
	else
		n += rv;
#endif
	return n;
}
#endif