[u-boot.git] / board / ti / am335x / board.c

/*
 * board.c
 *
 * Board functions for TI AM335X based boards
 *
 * Copyright (C) 2011, Texas Instruments, Incorporated - http://www.ti.com/
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License as
 * published by the Free Software Foundation; either version 2 of
 * the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR /PURPOSE.  See the
 * GNU General Public License for more details.
 */

#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 "board.h"

DECLARE_GLOBAL_DATA_PTR;

static struct wd_timer *wdtimer = (struct wd_timer *)WDT_BASE;
#ifdef CONFIG_SPL_BUILD
static struct uart_sys *uart_base = (struct uart_sys *)DEFAULT_UART_BASE;
#endif

/* MII mode defines */
#define MII_MODE_ENABLE		0x0
#define RGMII_MODE_ENABLE	0x3A

/* GPIO that controls power to DDR on EVM-SK */
#define GPIO_DDR_VTT_EN		7

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

static struct am335x_baseboard_id __attribute__((section (".data"))) header;

static inline int board_is_bone(void)
{
	return !strncmp(header.name, "A335BONE", HDR_NAME_LEN);
}

static inline int board_is_bone_lt(void)
{
	return !strncmp(header.name, "A335BNLT", HDR_NAME_LEN);
}

static inline int board_is_evm_sk(void)
{
	return !strncmp("A335X_SK", header.name, HDR_NAME_LEN);
}

static inline int board_is_idk(void)
{
	return !strncmp(header.config, "SKU#02", 6);
}

int board_is_evm_15_or_later(void)
{
	return (!strncmp("A33515BB", header.name, 8) &&
		strncmp("1.5", header.version, 3) <= 0);
}

/*
 * 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)) {
		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, 2, (uchar *)&header,
							sizeof(header))) {
		puts("Could not read the EEPROM; something fundamentally"
			" wrong on the I2C bus.\n");
		return -EIO;
	}

	if (header.magic != 0xEE3355AA) {
		/*
		 * read the eeprom using i2c again,
		 * but use only a 1 byte address
		 */
		if (i2c_read(CONFIG_SYS_I2C_EEPROM_ADDR, 0, 1,
					(uchar *)&header, sizeof(header))) {
			puts("Could not read the EEPROM; something "
				"fundamentally wrong on the I2C bus.\n");
			return -EIO;
		}

		if (header.magic != 0xEE3355AA) {
			printf("Incorrect magic number (0x%x) in EEPROM\n",
					header.magic);
			return -EINVAL;
		}
	}

	return 0;
}

/* UART Defines */
#ifdef CONFIG_SPL_BUILD
#define UART_RESET		(0x1 << 1)
#define UART_CLK_RUNNING_MASK	0x1
#define UART_SMART_IDLE_EN	(0x1 << 0x3)

static void rtc32k_enable(void)
{
	struct rtc_regs *rtc = (struct rtc_regs *)AM335X_RTC_BASE;

	/*
	 * Unlock the RTC's registers.  For more details please see the
	 * RTC_SS section of the TRM.  In order to unlock we need to
	 * write these specific values (keys) in this order.
	 */
	writel(0x83e70b13, &rtc->kick0r);
	writel(0x95a4f1e0, &rtc->kick1r);

	/* Enable the RTC 32K OSC by setting bits 3 and 6. */
	writel((1 << 3) | (1 << 6), &rtc->osc);
}

static const struct ddr_data ddr2_data = {
	.datardsratio0 = ((MT47H128M16RT25E_RD_DQS<<30) |
			  (MT47H128M16RT25E_RD_DQS<<20) |
			  (MT47H128M16RT25E_RD_DQS<<10) |
			  (MT47H128M16RT25E_RD_DQS<<0)),
	.datawdsratio0 = ((MT47H128M16RT25E_WR_DQS<<30) |
			  (MT47H128M16RT25E_WR_DQS<<20) |
			  (MT47H128M16RT25E_WR_DQS<<10) |
			  (MT47H128M16RT25E_WR_DQS<<0)),
	.datawiratio0 = ((MT47H128M16RT25E_PHY_WRLVL<<30) |
			 (MT47H128M16RT25E_PHY_WRLVL<<20) |
			 (MT47H128M16RT25E_PHY_WRLVL<<10) |
			 (MT47H128M16RT25E_PHY_WRLVL<<0)),
	.datagiratio0 = ((MT47H128M16RT25E_PHY_GATELVL<<30) |
			 (MT47H128M16RT25E_PHY_GATELVL<<20) |
			 (MT47H128M16RT25E_PHY_GATELVL<<10) |
			 (MT47H128M16RT25E_PHY_GATELVL<<0)),
	.datafwsratio0 = ((MT47H128M16RT25E_PHY_FIFO_WE<<30) |
			  (MT47H128M16RT25E_PHY_FIFO_WE<<20) |
			  (MT47H128M16RT25E_PHY_FIFO_WE<<10) |
			  (MT47H128M16RT25E_PHY_FIFO_WE<<0)),
	.datawrsratio0 = ((MT47H128M16RT25E_PHY_WR_DATA<<30) |
			  (MT47H128M16RT25E_PHY_WR_DATA<<20) |
			  (MT47H128M16RT25E_PHY_WR_DATA<<10) |
			  (MT47H128M16RT25E_PHY_WR_DATA<<0)),
	.datauserank0delay = MT47H128M16RT25E_PHY_RANK0_DELAY,
	.datadldiff0 = PHY_DLL_LOCK_DIFF,
};

static const struct cmd_control ddr2_cmd_ctrl_data = {
	.cmd0csratio = MT47H128M16RT25E_RATIO,
	.cmd0dldiff = MT47H128M16RT25E_DLL_LOCK_DIFF,
	.cmd0iclkout = MT47H128M16RT25E_INVERT_CLKOUT,

	.cmd1csratio = MT47H128M16RT25E_RATIO,
	.cmd1dldiff = MT47H128M16RT25E_DLL_LOCK_DIFF,
	.cmd1iclkout = MT47H128M16RT25E_INVERT_CLKOUT,

	.cmd2csratio = MT47H128M16RT25E_RATIO,
	.cmd2dldiff = MT47H128M16RT25E_DLL_LOCK_DIFF,
	.cmd2iclkout = MT47H128M16RT25E_INVERT_CLKOUT,
};

static const struct emif_regs ddr2_emif_reg_data = {
	.sdram_config = MT47H128M16RT25E_EMIF_SDCFG,
	.ref_ctrl = MT47H128M16RT25E_EMIF_SDREF,
	.sdram_tim1 = MT47H128M16RT25E_EMIF_TIM1,
	.sdram_tim2 = MT47H128M16RT25E_EMIF_TIM2,
	.sdram_tim3 = MT47H128M16RT25E_EMIF_TIM3,
	.emif_ddr_phy_ctlr_1 = MT47H128M16RT25E_EMIF_READ_LATENCY,
};

static const struct ddr_data ddr3_data = {
	.datardsratio0 = MT41J128MJT125_RD_DQS,
	.datawdsratio0 = MT41J128MJT125_WR_DQS,
	.datafwsratio0 = MT41J128MJT125_PHY_FIFO_WE,
	.datawrsratio0 = MT41J128MJT125_PHY_WR_DATA,
	.datadldiff0 = PHY_DLL_LOCK_DIFF,
};

static const struct ddr_data ddr3_evm_data = {
	.datardsratio0 = MT41J512M8RH125_RD_DQS,
	.datawdsratio0 = MT41J512M8RH125_WR_DQS,
	.datafwsratio0 = MT41J512M8RH125_PHY_FIFO_WE,
	.datawrsratio0 = MT41J512M8RH125_PHY_WR_DATA,
	.datadldiff0 = PHY_DLL_LOCK_DIFF,
};

static const struct cmd_control ddr3_cmd_ctrl_data = {
	.cmd0csratio = MT41J128MJT125_RATIO,
	.cmd0dldiff = MT41J128MJT125_DLL_LOCK_DIFF,
	.cmd0iclkout = MT41J128MJT125_INVERT_CLKOUT,

	.cmd1csratio = MT41J128MJT125_RATIO,
	.cmd1dldiff = MT41J128MJT125_DLL_LOCK_DIFF,
	.cmd1iclkout = MT41J128MJT125_INVERT_CLKOUT,

	.cmd2csratio = MT41J128MJT125_RATIO,
	.cmd2dldiff = MT41J128MJT125_DLL_LOCK_DIFF,
	.cmd2iclkout = MT41J128MJT125_INVERT_CLKOUT,
};

static const struct cmd_control ddr3_evm_cmd_ctrl_data = {
	.cmd0csratio = MT41J512M8RH125_RATIO,
	.cmd0dldiff = MT41J512M8RH125_DLL_LOCK_DIFF,
	.cmd0iclkout = MT41J512M8RH125_INVERT_CLKOUT,

	.cmd1csratio = MT41J512M8RH125_RATIO,
	.cmd1dldiff = MT41J512M8RH125_DLL_LOCK_DIFF,
	.cmd1iclkout = MT41J512M8RH125_INVERT_CLKOUT,

	.cmd2csratio = MT41J512M8RH125_RATIO,
	.cmd2dldiff = MT41J512M8RH125_DLL_LOCK_DIFF,
	.cmd2iclkout = MT41J512M8RH125_INVERT_CLKOUT,
};

static struct emif_regs ddr3_emif_reg_data = {
	.sdram_config = MT41J128MJT125_EMIF_SDCFG,
	.ref_ctrl = MT41J128MJT125_EMIF_SDREF,
	.sdram_tim1 = MT41J128MJT125_EMIF_TIM1,
	.sdram_tim2 = MT41J128MJT125_EMIF_TIM2,
	.sdram_tim3 = MT41J128MJT125_EMIF_TIM3,
	.zq_config = MT41J128MJT125_ZQ_CFG,
	.emif_ddr_phy_ctlr_1 = MT41J128MJT125_EMIF_READ_LATENCY,
};

static struct emif_regs ddr3_evm_emif_reg_data = {
	.sdram_config = MT41J512M8RH125_EMIF_SDCFG,
	.ref_ctrl = MT41J512M8RH125_EMIF_SDREF,
	.sdram_tim1 = MT41J512M8RH125_EMIF_TIM1,
	.sdram_tim2 = MT41J512M8RH125_EMIF_TIM2,
	.sdram_tim3 = MT41J512M8RH125_EMIF_TIM3,
	.zq_config = MT41J512M8RH125_ZQ_CFG,
	.emif_ddr_phy_ctlr_1 = MT41J512M8RH125_EMIF_READ_LATENCY,
};
#endif

/*
 * early system init of muxing and clocks.
 */
void s_init(void)
{
	/* WDT1 is already running when the bootloader gets control
	 * Disable it to avoid "random" resets
	 */
	writel(0xAAAA, &wdtimer->wdtwspr);
	while (readl(&wdtimer->wdtwwps) != 0x0)
		;
	writel(0x5555, &wdtimer->wdtwspr);
	while (readl(&wdtimer->wdtwwps) != 0x0)
		;

#ifdef CONFIG_SPL_BUILD
	/* Setup the PLLs and the clocks for the peripherals */
	pll_init();

	/* Enable RTC32K clock */
	rtc32k_enable();

	/* UART softreset */
	u32 regVal;

#ifdef CONFIG_SERIAL1
	enable_uart0_pin_mux();
#endif /* CONFIG_SERIAL1 */
#ifdef CONFIG_SERIAL2
	enable_uart1_pin_mux();
#endif /* CONFIG_SERIAL2 */
#ifdef CONFIG_SERIAL3
	enable_uart2_pin_mux();
#endif /* CONFIG_SERIAL3 */
#ifdef CONFIG_SERIAL4
	enable_uart3_pin_mux();
#endif /* CONFIG_SERIAL4 */
#ifdef CONFIG_SERIAL5
	enable_uart4_pin_mux();
#endif /* CONFIG_SERIAL5 */
#ifdef CONFIG_SERIAL6
	enable_uart5_pin_mux();
#endif /* CONFIG_SERIAL6 */

	regVal = readl(&uart_base->uartsyscfg);
	regVal |= UART_RESET;
	writel(regVal, &uart_base->uartsyscfg);
	while ((readl(&uart_base->uartsyssts) &
		UART_CLK_RUNNING_MASK) != UART_CLK_RUNNING_MASK)
		;

	/* Disable smart idle */
	regVal = readl(&uart_base->uartsyscfg);
	regVal |= UART_SMART_IDLE_EN;
	writel(regVal, &uart_base->uartsyscfg);

	gd = &gdata;

	preloader_console_init();

	/* Initalize the board header */
	enable_i2c0_pin_mux();
	i2c_init(CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE);
	if (read_eeprom() < 0)
		puts("Could not get board ID.\n");

	enable_board_pin_mux(&header);
	if (board_is_evm_sk()) {
		/*
		 * EVM SK 1.2A and later use gpio0_7 to enable DDR3.
		 * This is safe enough to do on older revs.
		 */
		gpio_request(GPIO_DDR_VTT_EN, "ddr_vtt_en");
		gpio_direction_output(GPIO_DDR_VTT_EN, 1);
	}

	if (board_is_evm_sk() || board_is_bone_lt())
		config_ddr(303, MT41J128MJT125_IOCTRL_VALUE, &ddr3_data,
			   &ddr3_cmd_ctrl_data, &ddr3_emif_reg_data);
	else if (board_is_evm_15_or_later())
		config_ddr(303, MT41J512M8RH125_IOCTRL_VALUE, &ddr3_evm_data,
			   &ddr3_evm_cmd_ctrl_data, &ddr3_evm_emif_reg_data);
	else
		config_ddr(266, MT47H128M16RT25E_IOCTRL_VALUE, &ddr2_data,
			   &ddr2_cmd_ctrl_data, &ddr2_emif_reg_data);
#endif
}

/*
 * Basic board specific setup.  Pinmux has been handled already.
 */
int board_init(void)
{
	i2c_init(CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE);
	if (read_eeprom() < 0)
		puts("Could not get board ID.\n");

	gd->bd->bi_boot_params = PHYS_DRAM_1 + 0x100;

	gpmc_init();

	return 0;
}

#ifdef CONFIG_BOARD_LATE_INIT
int board_late_init(void)
{
#ifdef CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG
	char safe_string[HDR_NAME_LEN + 1];

	/* Now set variables based on the header. */
	strncpy(safe_string, (char *)header.name, sizeof(header.name));
	safe_string[sizeof(header.name)] = 0;
	setenv("board_name", safe_string);

	strncpy(safe_string, (char *)header.version, sizeof(header.version));
	safe_string[sizeof(header.version)] = 0;
	setenv("board_rev", safe_string);
#endif

	return 0;
}
#endif

#ifdef CONFIG_DRIVER_TI_CPSW
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_id		= 0,
	},
	{
		.slave_reg_ofs	= 0x308,
		.sliver_reg_ofs	= 0xdc0,
		.phy_id		= 1,
	},
};

static struct cpsw_platform_data cpsw_data = {
	.mdio_base		= AM335X_CPSW_MDIO_BASE,
	.cpsw_base		= AM335X_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,
	.mac_control		= (1 << 5),
	.control		= cpsw_control,
	.host_port_num		= 0,
	.version		= CPSW_CTRL_VERSION_2,
};
#endif

#if defined(CONFIG_DRIVER_TI_CPSW) || \
	(defined(CONFIG_USB_ETHER) && defined(CONFIG_MUSB_GADGET))
int board_eth_init(bd_t *bis)
{
	int rv, n = 0;
#ifdef CONFIG_DRIVER_TI_CPSW
	uint8_t mac_addr[6];
	uint32_t mac_hi, mac_lo;

	if (!eth_getenv_enetaddr("ethaddr", mac_addr)) {
		printf("<ethaddr> not set. Reading from E-fuse\n");
		/* 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 (is_valid_ether_addr(mac_addr))
			eth_setenv_enetaddr("ethaddr", mac_addr);
		else
			goto try_usbether;
	}

	if (board_is_bone() || board_is_bone_lt() || board_is_idk()) {
		writel(MII_MODE_ENABLE, &cdev->miisel);
		cpsw_slaves[0].phy_if = cpsw_slaves[1].phy_if =
				PHY_INTERFACE_MODE_MII;
	} else {
		writel(RGMII_MODE_ENABLE, &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
try_usbether:
#if defined(CONFIG_USB_ETHER) && !defined(CONFIG_SPL_BUILD)
	rv = usb_eth_initialize(bis);
	if (rv < 0)
		printf("Error %d registering USB_ETHER\n", rv);
	else
		n += rv;
#endif
	return n;
}
#endif
Commit	Line	Data
e363426e PK	1	/*
	2	* board.c
	3	*
	4	* Board functions for TI AM335X based boards
	5	*
	6	* Copyright (C) 2011, Texas Instruments, Incorporated - http://www.ti.com/
	7	*
	8	* This program is free software; you can redistribute it and/or
	9	* modify it under the terms of the GNU General Public License as
	10	* published by the Free Software Foundation; either version 2 of
	11	* the License, or (at your option) any later version.
	12	*
	13	* This program is distributed in the hope that it will be useful,
	14	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	15	* MERCHANTABILITY or FITNESS FOR A PARTICULAR /PURPOSE. See the
	16	* GNU General Public License for more details.
	17	*/
	18
	19	#include <common.h>
	20	#include <errno.h>
	21	#include <spl.h>
	22	#include <asm/arch/cpu.h>
	23	#include <asm/arch/hardware.h>
	24	#include <asm/arch/omap.h>
	25	#include <asm/arch/ddr_defs.h>
	26	#include <asm/arch/clock.h>
	27	#include <asm/arch/gpio.h>
	28	#include <asm/arch/mmc_host_def.h>
	29	#include <asm/arch/sys_proto.h>
	30	#include <asm/io.h>
	31	#include <asm/emif.h>
	32	#include <asm/gpio.h>
	33	#include <i2c.h>
	34	#include <miiphy.h>
	35	#include <cpsw.h>
	36	#include "board.h"
	37
	38	DECLARE_GLOBAL_DATA_PTR;
	39
	40	static struct wd_timer wdtimer = (struct wd_timer )WDT_BASE;
	41	#ifdef CONFIG_SPL_BUILD
	42	static struct uart_sys uart_base = (struct uart_sys )DEFAULT_UART_BASE;
	43	#endif
	44
	45	/* MII mode defines */
	46	#define MII_MODE_ENABLE 0x0
cfd4ff6f	47	#define RGMII_MODE_ENABLE 0x3A
e363426e PK	48
	49	/* GPIO that controls power to DDR on EVM-SK */
	50	#define GPIO_DDR_VTT_EN 7
	51
	52	static struct ctrl_dev cdev = (struct ctrl_dev )CTRL_DEVICE_BASE;
	53
	54	static struct am335x_baseboard_id __attribute__((section (".data"))) header;
	55
	56	static inline int board_is_bone(void)
	57	{
	58	return !strncmp(header.name, "A335BONE", HDR_NAME_LEN);
	59	}
	60
	61	static inline int board_is_bone_lt(void)
	62	{
	63	return !strncmp(header.name, "A335BNLT", HDR_NAME_LEN);
	64	}
	65
	66	static inline int board_is_evm_sk(void)
	67	{
	68	return !strncmp("A335X_SK", header.name, HDR_NAME_LEN);
	69	}
	70
a956bdcb MF	71	static inline int board_is_idk(void)
	72	{
	73	return !strncmp(header.config, "SKU#02", 6);
	74	}
	75
13526f71 JL	76	int board_is_evm_15_or_later(void)
	77	{
	78	return (!strncmp("A33515BB", header.name, 8) &&
	79	strncmp("1.5", header.version, 3) <= 0);
	80	}
	81
e363426e PK	82	/*
	83	* Read header information from EEPROM into global structure.
	84	*/
	85	static int read_eeprom(void)
	86	{
	87	/* Check if baseboard eeprom is available */
	88	if (i2c_probe(CONFIG_SYS_I2C_EEPROM_ADDR)) {
	89	puts("Could not probe the EEPROM; something fundamentally "
	90	"wrong on the I2C bus.\n");
	91	return -ENODEV;
	92	}
	93
	94	/* read the eeprom using i2c */
	95	if (i2c_read(CONFIG_SYS_I2C_EEPROM_ADDR, 0, 2, (uchar *)&header,
	96	sizeof(header))) {
	97	puts("Could not read the EEPROM; something fundamentally"
	98	" wrong on the I2C bus.\n");
	99	return -EIO;
	100	}
	101
	102	if (header.magic != 0xEE3355AA) {
	103	/*
	104	* read the eeprom using i2c again,
	105	* but use only a 1 byte address
	106	*/
	107	if (i2c_read(CONFIG_SYS_I2C_EEPROM_ADDR, 0, 1,
	108	(uchar *)&header, sizeof(header))) {
	109	puts("Could not read the EEPROM; something "
	110	"fundamentally wrong on the I2C bus.\n");
	111	return -EIO;
	112	}
	113
	114	if (header.magic != 0xEE3355AA) {
	115	printf("Incorrect magic number (0x%x) in EEPROM\n",
	116	header.magic);
	117	return -EINVAL;
	118	}
	119	}
	120
	121	return 0;
	122	}
	123
	124	/* UART Defines */
	125	#ifdef CONFIG_SPL_BUILD
	126	#define UART_RESET (0x1 << 1)
	127	#define UART_CLK_RUNNING_MASK 0x1
	128	#define UART_SMART_IDLE_EN (0x1 << 0x3)
	129
	130	static void rtc32k_enable(void)
	131	{
	132	struct rtc_regs rtc = (struct rtc_regs )AM335X_RTC_BASE;
	133
	134	/*
	135	* Unlock the RTC's registers. For more details please see the
	136	* RTC_SS section of the TRM. In order to unlock we need to
	137	* write these specific values (keys) in this order.
	138	*/
	139	writel(0x83e70b13, &rtc->kick0r);
	140	writel(0x95a4f1e0, &rtc->kick1r);
	141
	142	/* Enable the RTC 32K OSC by setting bits 3 and 6. */
	143	writel((1 << 3) \| (1 << 6), &rtc->osc);
	144	}
e363426e	145
c00f69db	146	static const struct ddr_data ddr2_data = {
c7d35bef PK	147	.datardsratio0 = ((MT47H128M16RT25E_RD_DQS<<30) \|
	148	(MT47H128M16RT25E_RD_DQS<<20) \|
	149	(MT47H128M16RT25E_RD_DQS<<10) \|
	150	(MT47H128M16RT25E_RD_DQS<<0)),
	151	.datawdsratio0 = ((MT47H128M16RT25E_WR_DQS<<30) \|
	152	(MT47H128M16RT25E_WR_DQS<<20) \|
	153	(MT47H128M16RT25E_WR_DQS<<10) \|
	154	(MT47H128M16RT25E_WR_DQS<<0)),
	155	.datawiratio0 = ((MT47H128M16RT25E_PHY_WRLVL<<30) \|
	156	(MT47H128M16RT25E_PHY_WRLVL<<20) \|
	157	(MT47H128M16RT25E_PHY_WRLVL<<10) \|
	158	(MT47H128M16RT25E_PHY_WRLVL<<0)),
	159	.datagiratio0 = ((MT47H128M16RT25E_PHY_GATELVL<<30) \|
	160	(MT47H128M16RT25E_PHY_GATELVL<<20) \|
	161	(MT47H128M16RT25E_PHY_GATELVL<<10) \|
	162	(MT47H128M16RT25E_PHY_GATELVL<<0)),
	163	.datafwsratio0 = ((MT47H128M16RT25E_PHY_FIFO_WE<<30) \|
	164	(MT47H128M16RT25E_PHY_FIFO_WE<<20) \|
	165	(MT47H128M16RT25E_PHY_FIFO_WE<<10) \|
	166	(MT47H128M16RT25E_PHY_FIFO_WE<<0)),
	167	.datawrsratio0 = ((MT47H128M16RT25E_PHY_WR_DATA<<30) \|
	168	(MT47H128M16RT25E_PHY_WR_DATA<<20) \|
	169	(MT47H128M16RT25E_PHY_WR_DATA<<10) \|
	170	(MT47H128M16RT25E_PHY_WR_DATA<<0)),
	171	.datauserank0delay = MT47H128M16RT25E_PHY_RANK0_DELAY,
c00f69db PK	172	.datadldiff0 = PHY_DLL_LOCK_DIFF,
c00f69db PK	173	};
e363426e	174
c00f69db	175	static const struct cmd_control ddr2_cmd_ctrl_data = {
c7d35bef PK	176	.cmd0csratio = MT47H128M16RT25E_RATIO,
	177	.cmd0dldiff = MT47H128M16RT25E_DLL_LOCK_DIFF,
	178	.cmd0iclkout = MT47H128M16RT25E_INVERT_CLKOUT,
c00f69db	179
c7d35bef PK	180	.cmd1csratio = MT47H128M16RT25E_RATIO,
	181	.cmd1dldiff = MT47H128M16RT25E_DLL_LOCK_DIFF,
	182	.cmd1iclkout = MT47H128M16RT25E_INVERT_CLKOUT,
c00f69db	183
c7d35bef PK	184	.cmd2csratio = MT47H128M16RT25E_RATIO,
	185	.cmd2dldiff = MT47H128M16RT25E_DLL_LOCK_DIFF,
	186	.cmd2iclkout = MT47H128M16RT25E_INVERT_CLKOUT,
c00f69db PK	187	};
	188
	189	static const struct emif_regs ddr2_emif_reg_data = {
c7d35bef PK	190	.sdram_config = MT47H128M16RT25E_EMIF_SDCFG,
	191	.ref_ctrl = MT47H128M16RT25E_EMIF_SDREF,
	192	.sdram_tim1 = MT47H128M16RT25E_EMIF_TIM1,
	193	.sdram_tim2 = MT47H128M16RT25E_EMIF_TIM2,
	194	.sdram_tim3 = MT47H128M16RT25E_EMIF_TIM3,
	195	.emif_ddr_phy_ctlr_1 = MT47H128M16RT25E_EMIF_READ_LATENCY,
c00f69db PK	196	};
	197
	198	static const struct ddr_data ddr3_data = {
c7d35bef PK	199	.datardsratio0 = MT41J128MJT125_RD_DQS,
	200	.datawdsratio0 = MT41J128MJT125_WR_DQS,
	201	.datafwsratio0 = MT41J128MJT125_PHY_FIFO_WE,
	202	.datawrsratio0 = MT41J128MJT125_PHY_WR_DATA,
c00f69db PK	203	.datadldiff0 = PHY_DLL_LOCK_DIFF,
	204	};
	205
13526f71 JL	206	static const struct ddr_data ddr3_evm_data = {
	207	.datardsratio0 = MT41J512M8RH125_RD_DQS,
	208	.datawdsratio0 = MT41J512M8RH125_WR_DQS,
	209	.datafwsratio0 = MT41J512M8RH125_PHY_FIFO_WE,
	210	.datawrsratio0 = MT41J512M8RH125_PHY_WR_DATA,
	211	.datadldiff0 = PHY_DLL_LOCK_DIFF,
	212	};
	213
c00f69db	214	static const struct cmd_control ddr3_cmd_ctrl_data = {
c7d35bef PK	215	.cmd0csratio = MT41J128MJT125_RATIO,
	216	.cmd0dldiff = MT41J128MJT125_DLL_LOCK_DIFF,
	217	.cmd0iclkout = MT41J128MJT125_INVERT_CLKOUT,
c00f69db	218
c7d35bef PK	219	.cmd1csratio = MT41J128MJT125_RATIO,
	220	.cmd1dldiff = MT41J128MJT125_DLL_LOCK_DIFF,
	221	.cmd1iclkout = MT41J128MJT125_INVERT_CLKOUT,
c00f69db	222
c7d35bef PK	223	.cmd2csratio = MT41J128MJT125_RATIO,
	224	.cmd2dldiff = MT41J128MJT125_DLL_LOCK_DIFF,
	225	.cmd2iclkout = MT41J128MJT125_INVERT_CLKOUT,
c00f69db PK	226	};
c00f69db PK	227
13526f71 JL	228	static const struct cmd_control ddr3_evm_cmd_ctrl_data = {
	229	.cmd0csratio = MT41J512M8RH125_RATIO,
	230	.cmd0dldiff = MT41J512M8RH125_DLL_LOCK_DIFF,
	231	.cmd0iclkout = MT41J512M8RH125_INVERT_CLKOUT,
	232
	233	.cmd1csratio = MT41J512M8RH125_RATIO,
	234	.cmd1dldiff = MT41J512M8RH125_DLL_LOCK_DIFF,
	235	.cmd1iclkout = MT41J512M8RH125_INVERT_CLKOUT,
	236
	237	.cmd2csratio = MT41J512M8RH125_RATIO,
	238	.cmd2dldiff = MT41J512M8RH125_DLL_LOCK_DIFF,
	239	.cmd2iclkout = MT41J512M8RH125_INVERT_CLKOUT,
	240	};
	241
c00f69db	242	static struct emif_regs ddr3_emif_reg_data = {
c7d35bef PK	243	.sdram_config = MT41J128MJT125_EMIF_SDCFG,
	244	.ref_ctrl = MT41J128MJT125_EMIF_SDREF,
	245	.sdram_tim1 = MT41J128MJT125_EMIF_TIM1,
	246	.sdram_tim2 = MT41J128MJT125_EMIF_TIM2,
	247	.sdram_tim3 = MT41J128MJT125_EMIF_TIM3,
	248	.zq_config = MT41J128MJT125_ZQ_CFG,
	249	.emif_ddr_phy_ctlr_1 = MT41J128MJT125_EMIF_READ_LATENCY,
c00f69db	250	};
13526f71 JL	251
	252	static struct emif_regs ddr3_evm_emif_reg_data = {
	253	.sdram_config = MT41J512M8RH125_EMIF_SDCFG,
	254	.ref_ctrl = MT41J512M8RH125_EMIF_SDREF,
	255	.sdram_tim1 = MT41J512M8RH125_EMIF_TIM1,
	256	.sdram_tim2 = MT41J512M8RH125_EMIF_TIM2,
	257	.sdram_tim3 = MT41J512M8RH125_EMIF_TIM3,
	258	.zq_config = MT41J512M8RH125_ZQ_CFG,
	259	.emif_ddr_phy_ctlr_1 = MT41J512M8RH125_EMIF_READ_LATENCY,
	260	};
c00f69db	261	#endif
e363426e PK	262
	263	/*
	264	* early system init of muxing and clocks.
	265	*/
	266	void s_init(void)
	267	{
	268	/* WDT1 is already running when the bootloader gets control
	269	* Disable it to avoid "random" resets
	270	*/
	271	writel(0xAAAA, &wdtimer->wdtwspr);
	272	while (readl(&wdtimer->wdtwwps) != 0x0)
	273	;
	274	writel(0x5555, &wdtimer->wdtwspr);
	275	while (readl(&wdtimer->wdtwwps) != 0x0)
	276	;
	277
	278	#ifdef CONFIG_SPL_BUILD
	279	/* Setup the PLLs and the clocks for the peripherals */
	280	pll_init();
	281
	282	/* Enable RTC32K clock */
	283	rtc32k_enable();
	284
	285	/* UART softreset */
	286	u32 regVal;
	287
6422b70b	288	#ifdef CONFIG_SERIAL1
e363426e	289	enable_uart0_pin_mux();
6422b70b AB	290	#endif /* CONFIG_SERIAL1 */
	291	#ifdef CONFIG_SERIAL2
	292	enable_uart1_pin_mux();
	293	#endif /* CONFIG_SERIAL2 */
	294	#ifdef CONFIG_SERIAL3
	295	enable_uart2_pin_mux();
	296	#endif /* CONFIG_SERIAL3 */
	297	#ifdef CONFIG_SERIAL4
	298	enable_uart3_pin_mux();
	299	#endif /* CONFIG_SERIAL4 */
	300	#ifdef CONFIG_SERIAL5
	301	enable_uart4_pin_mux();
	302	#endif /* CONFIG_SERIAL5 */
	303	#ifdef CONFIG_SERIAL6
	304	enable_uart5_pin_mux();
	305	#endif /* CONFIG_SERIAL6 */
e363426e PK	306
	307	regVal = readl(&uart_base->uartsyscfg);
	308	regVal \|= UART_RESET;
	309	writel(regVal, &uart_base->uartsyscfg);
	310	while ((readl(&uart_base->uartsyssts) &
	311	UART_CLK_RUNNING_MASK) != UART_CLK_RUNNING_MASK)
	312	;
	313
	314	/* Disable smart idle */
	315	regVal = readl(&uart_base->uartsyscfg);
	316	regVal \|= UART_SMART_IDLE_EN;
	317	writel(regVal, &uart_base->uartsyscfg);
	318
	319	gd = &gdata;
	320
	321	preloader_console_init();
	322
	323	/* Initalize the board header */
	324	enable_i2c0_pin_mux();
	325	i2c_init(CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE);
	326	if (read_eeprom() < 0)
	327	puts("Could not get board ID.\n");
	328
	329	enable_board_pin_mux(&header);
	330	if (board_is_evm_sk()) {
	331	/*
	332	* EVM SK 1.2A and later use gpio0_7 to enable DDR3.
	333	* This is safe enough to do on older revs.
	334	*/
	335	gpio_request(GPIO_DDR_VTT_EN, "ddr_vtt_en");
	336	gpio_direction_output(GPIO_DDR_VTT_EN, 1);
	337	}
	338
c00f69db	339	if (board_is_evm_sk() \|\| board_is_bone_lt())
c7d35bef	340	config_ddr(303, MT41J128MJT125_IOCTRL_VALUE, &ddr3_data,
c00f69db	341	&ddr3_cmd_ctrl_data, &ddr3_emif_reg_data);
13526f71 JL	342	else if (board_is_evm_15_or_later())
	343	config_ddr(303, MT41J512M8RH125_IOCTRL_VALUE, &ddr3_evm_data,
	344	&ddr3_evm_cmd_ctrl_data, &ddr3_evm_emif_reg_data);
c00f69db	345	else
c7d35bef	346	config_ddr(266, MT47H128M16RT25E_IOCTRL_VALUE, &ddr2_data,
c00f69db	347	&ddr2_cmd_ctrl_data, &ddr2_emif_reg_data);
e363426e PK	348	#endif
	349	}
	350
	351	/*
	352	* Basic board specific setup. Pinmux has been handled already.
	353	*/
	354	int board_init(void)
	355	{
	356	i2c_init(CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE);
	357	if (read_eeprom() < 0)
	358	puts("Could not get board ID.\n");
	359
	360	gd->bd->bi_boot_params = PHYS_DRAM_1 + 0x100;
	361
98b5c269 IY	362	gpmc_init();
98b5c269 IY	363
e363426e PK	364	return 0;
	365	}
	366
044fc14b TR	367	#ifdef CONFIG_BOARD_LATE_INIT
	368	int board_late_init(void)
	369	{
	370	#ifdef CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG
	371	char safe_string[HDR_NAME_LEN + 1];
	372
	373	/* Now set variables based on the header. */
	374	strncpy(safe_string, (char *)header.name, sizeof(header.name));
	375	safe_string[sizeof(header.name)] = 0;
	376	setenv("board_name", safe_string);
	377
	378	strncpy(safe_string, (char *)header.version, sizeof(header.version));
	379	safe_string[sizeof(header.version)] = 0;
	380	setenv("board_rev", safe_string);
	381	#endif
	382
	383	return 0;
	384	}
	385	#endif
	386
e363426e PK	387	#ifdef CONFIG_DRIVER_TI_CPSW
	388	static void cpsw_control(int enabled)
	389	{
	390	/* VTP can be added here */
	391
	392	return;
	393	}
	394
	395	static struct cpsw_slave_data cpsw_slaves[] = {
	396	{
	397	.slave_reg_ofs = 0x208,
	398	.sliver_reg_ofs = 0xd80,
	399	.phy_id = 0,
	400	},
	401	{
	402	.slave_reg_ofs = 0x308,
	403	.sliver_reg_ofs = 0xdc0,
	404	.phy_id = 1,
	405	},
	406	};
	407
	408	static struct cpsw_platform_data cpsw_data = {
	409	.mdio_base = AM335X_CPSW_MDIO_BASE,
	410	.cpsw_base = AM335X_CPSW_BASE,
	411	.mdio_div = 0xff,
	412	.channels = 8,
	413	.cpdma_reg_ofs = 0x800,
	414	.slaves = 1,
	415	.slave_data = cpsw_slaves,
	416	.ale_reg_ofs = 0xd00,
	417	.ale_entries = 1024,
	418	.host_port_reg_ofs = 0x108,
	419	.hw_stats_reg_ofs = 0x900,
	420	.mac_control = (1 << 5),
	421	.control = cpsw_control,
	422	.host_port_num = 0,
	423	.version = CPSW_CTRL_VERSION_2,
	424	};
d2aa1154	425	#endif
e363426e	426
d2aa1154 IY	427	#if defined(CONFIG_DRIVER_TI_CPSW) \|\| \
d2aa1154 IY	428	(defined(CONFIG_USB_ETHER) && defined(CONFIG_MUSB_GADGET))
e363426e PK	429	int board_eth_init(bd_t *bis)
e363426e PK	430	{
d2aa1154 IY	431	int rv, n = 0;
d2aa1154 IY	432	#ifdef CONFIG_DRIVER_TI_CPSW
e363426e PK	433	uint8_t mac_addr[6];
	434	uint32_t mac_hi, mac_lo;
	435
	436	if (!eth_getenv_enetaddr("ethaddr", mac_addr)) {
3ec36b34	437	printf("<ethaddr> not set. Reading from E-fuse\n");
e363426e PK	438	/* try reading mac address from efuse */
	439	mac_lo = readl(&cdev->macid0l);
	440	mac_hi = readl(&cdev->macid0h);
	441	mac_addr[0] = mac_hi & 0xFF;
	442	mac_addr[1] = (mac_hi & 0xFF00) >> 8;
	443	mac_addr[2] = (mac_hi & 0xFF0000) >> 16;
	444	mac_addr[3] = (mac_hi & 0xFF000000) >> 24;
	445	mac_addr[4] = mac_lo & 0xFF;
	446	mac_addr[5] = (mac_lo & 0xFF00) >> 8;
	447
	448	if (is_valid_ether_addr(mac_addr))
	449	eth_setenv_enetaddr("ethaddr", mac_addr);
	450	else
d2aa1154	451	goto try_usbether;
e363426e PK	452	}
e363426e PK	453
a956bdcb	454	if (board_is_bone() \|\| board_is_bone_lt() \|\| board_is_idk()) {
e363426e PK	455	writel(MII_MODE_ENABLE, &cdev->miisel);
	456	cpsw_slaves[0].phy_if = cpsw_slaves[1].phy_if =
	457	PHY_INTERFACE_MODE_MII;
	458	} else {
	459	writel(RGMII_MODE_ENABLE, &cdev->miisel);
	460	cpsw_slaves[0].phy_if = cpsw_slaves[1].phy_if =
	461	PHY_INTERFACE_MODE_RGMII;
	462	}
	463
d2aa1154 IY	464	rv = cpsw_register(&cpsw_data);
	465	if (rv < 0)
	466	printf("Error %d registering CPSW switch\n", rv);
	467	else
	468	n += rv;
	469	#endif
	470	try_usbether:
	471	#if defined(CONFIG_USB_ETHER) && !defined(CONFIG_SPL_BUILD)
	472	rv = usb_eth_initialize(bis);
	473	if (rv < 0)
	474	printf("Error %d registering USB_ETHER\n", rv);
	475	else
	476	n += rv;
	477	#endif
	478	return n;
e363426e PK	479	}
e363426e PK	480	#endif