board/Barix/ipam390/ipam390.c - manifest_repos/bootloader - Git at Google

 /*
  * (C) Heiko Schocher, DENX Software Engineering, hs@denx.de.
  * Based on:
  * U-Boot:board/davinci/da8xxevm/da850evm.c
  *
  * Copyright (C) 2010 Texas Instruments Incorporated - http://www.ti.com/
  *
  * Based on da830evm.c. Original Copyrights follow:
  *
  * Copyright (C) 2009 Nick Thompson, GE Fanuc, Ltd. <nick.thompson@gefanuc.com>
  * Copyright (C) 2007 Sergey Kubushyn <ksi@koi8.net>
  *
  * SPDX-License-Identifier:	GPL-2.0+
  */

 #include <common.h>
 #include <i2c.h>
 #include <net.h>
 #include <netdev.h>
 #include <spi.h>
 #include <spi_flash.h>
 #include <asm/arch/hardware.h>
 #include <asm/ti-common/davinci_nand.h>
 #include <asm/arch/emac_defs.h>
 #include <asm/arch/pinmux_defs.h>
 #include <asm/io.h>
 #include <asm/arch/davinci_misc.h>
 #include <asm/errno.h>
 #include <asm/gpio.h>
 #include <hwconfig.h>
 #include <bootstage.h>

 DECLARE_GLOBAL_DATA_PTR;

 #ifdef CONFIG_DRIVER_TI_EMAC
 #ifdef CONFIG_DRIVER_TI_EMAC_USE_RMII
 #define HAS_RMII 1
 #else
 #define HAS_RMII 0
 #endif
 #endif /* CONFIG_DRIVER_TI_EMAC */

 void dsp_lpsc_on(unsigned domain, unsigned int id)
 {
 	dv_reg_p mdstat, mdctl, ptstat, ptcmd;
 	struct davinci_psc_regs *psc_regs;

 	psc_regs = davinci_psc0_regs;
 	mdstat = &psc_regs->psc0.mdstat[id];
 	mdctl = &psc_regs->psc0.mdctl[id];
 	ptstat = &psc_regs->ptstat;
 	ptcmd = &psc_regs->ptcmd;

 	while (*ptstat & (0x1 << domain))
 		;

 	if ((*mdstat & 0x1f) == 0x03)
 		return;                 /* Already on and enabled */

 	*mdctl |= 0x03;

 	*ptcmd = 0x1 << domain;

 	while (*ptstat & (0x1 << domain))
 		;
 	while ((*mdstat & 0x1f) != 0x03)
 		;		/* Probably an overkill... */
 }

 static void dspwake(void)
 {
 	unsigned *resetvect = (unsigned *)DAVINCI_L3CBARAM_BASE;
 	u32 val;

 	/* if the device is ARM only, return */
 	if ((readl(CHIP_REV_ID_REG) & 0x3f) == 0x10)
 		return;

 	if (hwconfig_subarg_cmp_f("dsp", "wake", "no", NULL))
 		return;

 	*resetvect++ = 0x1E000; /* DSP Idle */
 	/* clear out the next 10 words as NOP */
 	memset(resetvect, 0, sizeof(unsigned) * 10);

 	/* setup the DSP reset vector */
 	writel(DAVINCI_L3CBARAM_BASE, HOST1CFG);

 	dsp_lpsc_on(1, DAVINCI_LPSC_GEM);
 	val = readl(PSC0_MDCTL + (15 * 4));
 	val |= 0x100;
 	writel(val, (PSC0_MDCTL + (15 * 4)));
 }

 int misc_init_r(void)
 {
 	dspwake();
 	return 0;
 }

 static const struct pinmux_config gpio_pins[] = {
 	/* GP7[14] selects bootmode*/
 	{ pinmux(16), 8, 3 },	/* GP7[14] */
 };

 const struct pinmux_resource pinmuxes[] = {
 #ifdef CONFIG_DRIVER_TI_EMAC
 	PINMUX_ITEM(emac_pins_mdio),
 #ifdef CONFIG_DRIVER_TI_EMAC_USE_RMII
 	PINMUX_ITEM(emac_pins_rmii),
 #else
 	PINMUX_ITEM(emac_pins_mii),
 #endif
 #endif
 	PINMUX_ITEM(uart2_pins_txrx),
 	PINMUX_ITEM(uart2_pins_rtscts),
 	PINMUX_ITEM(uart0_pins_txrx),
 	PINMUX_ITEM(uart0_pins_rtscts),
 #ifdef CONFIG_NAND_DAVINCI
 	PINMUX_ITEM(emifa_pins_cs3),
 	PINMUX_ITEM(emifa_pins_nand),
 #endif
 	PINMUX_ITEM(gpio_pins),
 };

 const int pinmuxes_size = ARRAY_SIZE(pinmuxes);

 const struct lpsc_resource lpsc[] = {
 	{ DAVINCI_LPSC_AEMIF },	/* NAND, NOR */
 	{ DAVINCI_LPSC_EMAC },	/* image download */
 	{ DAVINCI_LPSC_UART2 },	/* console */
 	{ DAVINCI_LPSC_UART0 },	/* console */
 	{ DAVINCI_LPSC_GPIO },
 };

 const int lpsc_size = ARRAY_SIZE(lpsc);

 #ifndef CONFIG_DA850_EVM_MAX_CPU_CLK
 #define CONFIG_DA850_EVM_MAX_CPU_CLK	300000000
 #endif

 #define REV_AM18X_EVM		0x100

 /*
  * get_board_rev() - setup to pass kernel board revision information
  * Returns:
  * bit[0-3]	Maximum cpu clock rate supported by onboard SoC
  *		0000b - 300 MHz
  *		0001b - 372 MHz
  *		0010b - 408 MHz
  *		0011b - 456 MHz
  */
 u32 get_board_rev(void)
 {
 	char *s;
 	u32 maxcpuclk = CONFIG_DA850_EVM_MAX_CPU_CLK;
 	u32 rev = 0;

 	s = getenv("maxcpuclk");
 	if (s)
 		maxcpuclk = simple_strtoul(s, NULL, 10);

 	if (maxcpuclk >= 456000000)
 		rev = 3;
 	else if (maxcpuclk >= 408000000)
 		rev = 2;
 	else if (maxcpuclk >= 372000000)
 		rev = 1;
 #ifdef CONFIG_DA850_AM18X_EVM
 	rev |= REV_AM18X_EVM;
 #endif
 	return rev;
 }

 int board_early_init_f(void)
 {
 	/*
 	 * Power on required peripherals
 	 * ARM does not have access by default to PSC0 and PSC1
 	 * assuming here that the DSP bootloader has set the IOPU
 	 * such that PSC access is available to ARM
 	 */
 	if (da8xx_configure_lpsc_items(lpsc, ARRAY_SIZE(lpsc)))
 		return 1;

 	return 0;
 }

 int board_init(void)
 {
 #ifndef CONFIG_USE_IRQ
 	irq_init();
 #endif

 	/* arch number of the board */
 	gd->bd->bi_arch_number = MACH_TYPE_DAVINCI_DA850_EVM;

 	/* address of boot parameters */
 	gd->bd->bi_boot_params = LINUX_BOOT_PARAM_ADDR;

 	/* setup the SUSPSRC for ARM to control emulation suspend */
 	writel(readl(&davinci_syscfg_regs->suspsrc) &
 	       ~(DAVINCI_SYSCFG_SUSPSRC_EMAC | DAVINCI_SYSCFG_SUSPSRC_I2C |
 		 DAVINCI_SYSCFG_SUSPSRC_SPI1 | DAVINCI_SYSCFG_SUSPSRC_TIMER0 |
 		 DAVINCI_SYSCFG_SUSPSRC_UART0),
 	       &davinci_syscfg_regs->suspsrc);

 	/* configure pinmux settings */
 	if (davinci_configure_pin_mux_items(pinmuxes, ARRAY_SIZE(pinmuxes)))
 		return 1;

 #ifdef CONFIG_DRIVER_TI_EMAC
 	davinci_emac_mii_mode_sel(HAS_RMII);
 #endif /* CONFIG_DRIVER_TI_EMAC */

 	/* enable the console UART */
 	writel((DAVINCI_UART_PWREMU_MGMT_FREE | DAVINCI_UART_PWREMU_MGMT_URRST |
 		DAVINCI_UART_PWREMU_MGMT_UTRST),
 #if (CONFIG_SYS_NS16550_COM1 == DAVINCI_UART0_BASE)
 	       &davinci_uart0_ctrl_regs->pwremu_mgmt);
 #else
 	       &davinci_uart2_ctrl_regs->pwremu_mgmt);
 #endif
 	return 0;
 }

 #ifdef CONFIG_DRIVER_TI_EMAC
 /*
  * Initializes on-board ethernet controllers.
  */
 int board_eth_init(bd_t *bis)
 {
 	if (!davinci_emac_initialize()) {
 		printf("Error: Ethernet init failed!\n");
 		return -1;
 	}

 	return 0;
 }
 #endif /* CONFIG_DRIVER_TI_EMAC */

 static int init_led(int gpio, char *name, int val)
 {
 	int ret;

 	ret = gpio_request(gpio, name);
 	if (ret)
 		return -1;
 	ret = gpio_direction_output(gpio, val);
 	if (ret)
 		return -1;

 	return gpio;
 }

 #define LED_ON	0
 #define LED_OFF	1

 #if !defined(CONFIG_SPL_BUILD)
 #ifdef CONFIG_SHOW_BOOT_PROGRESS
 void show_boot_progress(int status)
 {
 	static int red;
 	static int green;

 	if (red == 0)
 		red = init_led(CONFIG_IPAM390_GPIO_LED_RED, "red", LED_ON);
 	if (red != CONFIG_IPAM390_GPIO_LED_RED)
 		return;
 	if (green == 0)
 		green = init_led(CONFIG_IPAM390_GPIO_LED_GREEN, "green",
 				 LED_OFF);
 	if (green != CONFIG_IPAM390_GPIO_LED_GREEN)
 		return;

 	switch (status) {
 	case BOOTSTAGE_ID_RUN_OS:
 		/*
 		 * set normal state
 		 * LED Red  : on
 		 * LED green: off
 		 */
 		gpio_set_value(red, LED_ON);
 		gpio_set_value(green, LED_OFF);
 		break;
 	case BOOTSTAGE_ID_MAIN_LOOP:
 		/*
 		 * U-Boot operation
 		 * LED Red  : on
 		 * LED green: on
 		 */
 		gpio_set_value(red, LED_ON);
 		gpio_set_value(green, LED_ON);
 		break;
 	}
 }
 #endif
 #endif

 #ifdef CONFIG_SPL_OS_BOOT
 int spl_start_uboot(void)
 {
 	int ret;
 	int bootmode = 0;

 	/*
 	 * GP7[14] selects bootmode:
 	 * 1: boot linux
 	 * 0: boot u-boot
 	 * if error accessing gpio boot U-Boot
 	 *
 	 * SPL bootmode
 	 * 0: boot linux
 	 * 1: boot u-boot
 	 */
 	ret = gpio_request(CONFIG_IPAM390_GPIO_BOOTMODE , "bootmode");
 	if (ret)
 		bootmode = 1;
 	if (!bootmode) {
 		ret = gpio_direction_input(CONFIG_IPAM390_GPIO_BOOTMODE);
 		if (ret)
 			bootmode = 1;
 	}
 	if (!bootmode)
 		ret = gpio_get_value(CONFIG_IPAM390_GPIO_BOOTMODE);
 	if (!bootmode)
 		if (ret == 0)
 			bootmode = 1;
 	/*
 	 * LED red  : on
 	 * LED green: off
 	 */
 	init_led(CONFIG_IPAM390_GPIO_LED_RED, "red", LED_ON);
 	init_led(CONFIG_IPAM390_GPIO_LED_GREEN, "green", LED_OFF);
 	return bootmode;
 }
 #endif
	/*
	* (C) Heiko Schocher, DENX Software Engineering, hs@denx.de.
	* Based on:
	* U-Boot:board/davinci/da8xxevm/da850evm.c
	*
	* Copyright (C) 2010 Texas Instruments Incorporated - http://www.ti.com/
	*
	* Based on da830evm.c. Original Copyrights follow:
	*
	* Copyright (C) 2009 Nick Thompson, GE Fanuc, Ltd. <nick.thompson@gefanuc.com>
	* Copyright (C) 2007 Sergey Kubushyn <ksi@koi8.net>
	*
	* SPDX-License-Identifier: GPL-2.0+
	*/

	#include <common.h>
	#include <i2c.h>
	#include <net.h>
	#include <netdev.h>
	#include <spi.h>
	#include <spi_flash.h>
	#include <asm/arch/hardware.h>
	#include <asm/ti-common/davinci_nand.h>
	#include <asm/arch/emac_defs.h>
	#include <asm/arch/pinmux_defs.h>
	#include <asm/io.h>
	#include <asm/arch/davinci_misc.h>
	#include <asm/errno.h>
	#include <asm/gpio.h>
	#include <hwconfig.h>
	#include <bootstage.h>

	DECLARE_GLOBAL_DATA_PTR;

	#ifdef CONFIG_DRIVER_TI_EMAC
	#ifdef CONFIG_DRIVER_TI_EMAC_USE_RMII
	#define HAS_RMII 1
	#else
	#define HAS_RMII 0
	#endif
	#endif /* CONFIG_DRIVER_TI_EMAC */

	void dsp_lpsc_on(unsigned domain, unsigned int id)
	{
	dv_reg_p mdstat, mdctl, ptstat, ptcmd;
	struct davinci_psc_regs *psc_regs;

	psc_regs = davinci_psc0_regs;
	mdstat = &psc_regs->psc0.mdstat[id];
	mdctl = &psc_regs->psc0.mdctl[id];
	ptstat = &psc_regs->ptstat;
	ptcmd = &psc_regs->ptcmd;

	while (*ptstat & (0x1 << domain))
	;

	if ((*mdstat & 0x1f) == 0x03)
	return; /* Already on and enabled */

	*mdctl \|= 0x03;

	*ptcmd = 0x1 << domain;

	while (*ptstat & (0x1 << domain))
	;
	while ((*mdstat & 0x1f) != 0x03)
	; /* Probably an overkill... */
	}

	static void dspwake(void)
	{
	unsigned resetvect = (unsigned )DAVINCI_L3CBARAM_BASE;
	u32 val;

	/* if the device is ARM only, return */
	if ((readl(CHIP_REV_ID_REG) & 0x3f) == 0x10)
	return;

	if (hwconfig_subarg_cmp_f("dsp", "wake", "no", NULL))
	return;

	resetvect++ = 0x1E000; / DSP Idle */
	/* clear out the next 10 words as NOP */
	memset(resetvect, 0, sizeof(unsigned) * 10);

	/* setup the DSP reset vector */
	writel(DAVINCI_L3CBARAM_BASE, HOST1CFG);

	dsp_lpsc_on(1, DAVINCI_LPSC_GEM);
	val = readl(PSC0_MDCTL + (15 * 4));
	val \|= 0x100;
	writel(val, (PSC0_MDCTL + (15 * 4)));
	}

	int misc_init_r(void)
	{
	dspwake();
	return 0;
	}

	static const struct pinmux_config gpio_pins[] = {
	/* GP7[14] selects bootmode*/
	{ pinmux(16), 8, 3 }, /* GP7[14] */
	};

	const struct pinmux_resource pinmuxes[] = {
	#ifdef CONFIG_DRIVER_TI_EMAC
	PINMUX_ITEM(emac_pins_mdio),
	#ifdef CONFIG_DRIVER_TI_EMAC_USE_RMII
	PINMUX_ITEM(emac_pins_rmii),
	#else
	PINMUX_ITEM(emac_pins_mii),
	#endif
	#endif
	PINMUX_ITEM(uart2_pins_txrx),
	PINMUX_ITEM(uart2_pins_rtscts),
	PINMUX_ITEM(uart0_pins_txrx),
	PINMUX_ITEM(uart0_pins_rtscts),
	#ifdef CONFIG_NAND_DAVINCI
	PINMUX_ITEM(emifa_pins_cs3),
	PINMUX_ITEM(emifa_pins_nand),
	#endif
	PINMUX_ITEM(gpio_pins),
	};

	const int pinmuxes_size = ARRAY_SIZE(pinmuxes);

	const struct lpsc_resource lpsc[] = {
	{ DAVINCI_LPSC_AEMIF }, /* NAND, NOR */
	{ DAVINCI_LPSC_EMAC }, /* image download */
	{ DAVINCI_LPSC_UART2 }, /* console */
	{ DAVINCI_LPSC_UART0 }, /* console */
	{ DAVINCI_LPSC_GPIO },
	};

	const int lpsc_size = ARRAY_SIZE(lpsc);

	#ifndef CONFIG_DA850_EVM_MAX_CPU_CLK
	#define CONFIG_DA850_EVM_MAX_CPU_CLK 300000000
	#endif

	#define REV_AM18X_EVM 0x100

	/*
	* get_board_rev() - setup to pass kernel board revision information
	* Returns:
	* bit[0-3] Maximum cpu clock rate supported by onboard SoC
	* 0000b - 300 MHz
	* 0001b - 372 MHz
	* 0010b - 408 MHz
	* 0011b - 456 MHz
	*/
	u32 get_board_rev(void)
	{
	char *s;
	u32 maxcpuclk = CONFIG_DA850_EVM_MAX_CPU_CLK;
	u32 rev = 0;

	s = getenv("maxcpuclk");
	if (s)
	maxcpuclk = simple_strtoul(s, NULL, 10);

	if (maxcpuclk >= 456000000)
	rev = 3;
	else if (maxcpuclk >= 408000000)
	rev = 2;
	else if (maxcpuclk >= 372000000)
	rev = 1;
	#ifdef CONFIG_DA850_AM18X_EVM
	rev \|= REV_AM18X_EVM;
	#endif
	return rev;
	}

	int board_early_init_f(void)
	{
	/*
	* Power on required peripherals
	* ARM does not have access by default to PSC0 and PSC1
	* assuming here that the DSP bootloader has set the IOPU
	* such that PSC access is available to ARM
	*/
	if (da8xx_configure_lpsc_items(lpsc, ARRAY_SIZE(lpsc)))
	return 1;

	return 0;
	}

	int board_init(void)
	{
	#ifndef CONFIG_USE_IRQ
	irq_init();
	#endif

	/* arch number of the board */
	gd->bd->bi_arch_number = MACH_TYPE_DAVINCI_DA850_EVM;

	/* address of boot parameters */
	gd->bd->bi_boot_params = LINUX_BOOT_PARAM_ADDR;

	/* setup the SUSPSRC for ARM to control emulation suspend */
	writel(readl(&davinci_syscfg_regs->suspsrc) &
	~(DAVINCI_SYSCFG_SUSPSRC_EMAC \| DAVINCI_SYSCFG_SUSPSRC_I2C \|
	DAVINCI_SYSCFG_SUSPSRC_SPI1 \| DAVINCI_SYSCFG_SUSPSRC_TIMER0 \|
	DAVINCI_SYSCFG_SUSPSRC_UART0),
	&davinci_syscfg_regs->suspsrc);

	/* configure pinmux settings */
	if (davinci_configure_pin_mux_items(pinmuxes, ARRAY_SIZE(pinmuxes)))
	return 1;

	#ifdef CONFIG_DRIVER_TI_EMAC
	davinci_emac_mii_mode_sel(HAS_RMII);
	#endif /* CONFIG_DRIVER_TI_EMAC */

	/* enable the console UART */
	writel((DAVINCI_UART_PWREMU_MGMT_FREE \| DAVINCI_UART_PWREMU_MGMT_URRST \|
	DAVINCI_UART_PWREMU_MGMT_UTRST),
	#if (CONFIG_SYS_NS16550_COM1 == DAVINCI_UART0_BASE)
	&davinci_uart0_ctrl_regs->pwremu_mgmt);
	#else
	&davinci_uart2_ctrl_regs->pwremu_mgmt);
	#endif
	return 0;
	}

	#ifdef CONFIG_DRIVER_TI_EMAC
	/*
	* Initializes on-board ethernet controllers.
	*/
	int board_eth_init(bd_t *bis)
	{
	if (!davinci_emac_initialize()) {
	printf("Error: Ethernet init failed!\n");
	return -1;
	}

	return 0;
	}
	#endif /* CONFIG_DRIVER_TI_EMAC */

	static int init_led(int gpio, char *name, int val)
	{
	int ret;

	ret = gpio_request(gpio, name);
	if (ret)
	return -1;
	ret = gpio_direction_output(gpio, val);
	if (ret)
	return -1;

	return gpio;
	}

	#define LED_ON 0
	#define LED_OFF 1

	#if !defined(CONFIG_SPL_BUILD)
	#ifdef CONFIG_SHOW_BOOT_PROGRESS
	void show_boot_progress(int status)
	{
	static int red;
	static int green;

	if (red == 0)
	red = init_led(CONFIG_IPAM390_GPIO_LED_RED, "red", LED_ON);
	if (red != CONFIG_IPAM390_GPIO_LED_RED)
	return;
	if (green == 0)
	green = init_led(CONFIG_IPAM390_GPIO_LED_GREEN, "green",
	LED_OFF);
	if (green != CONFIG_IPAM390_GPIO_LED_GREEN)
	return;

	switch (status) {
	case BOOTSTAGE_ID_RUN_OS:
	/*
	* set normal state
	* LED Red : on
	* LED green: off
	*/
	gpio_set_value(red, LED_ON);
	gpio_set_value(green, LED_OFF);
	break;
	case BOOTSTAGE_ID_MAIN_LOOP:
	/*
	* U-Boot operation
	* LED Red : on
	* LED green: on
	*/
	gpio_set_value(red, LED_ON);
	gpio_set_value(green, LED_ON);
	break;
	}
	}
	#endif
	#endif

	#ifdef CONFIG_SPL_OS_BOOT
	int spl_start_uboot(void)
	{
	int ret;
	int bootmode = 0;

	/*
	* GP7[14] selects bootmode:
	* 1: boot linux
	* 0: boot u-boot
	* if error accessing gpio boot U-Boot
	*
	* SPL bootmode
	* 0: boot linux
	* 1: boot u-boot
	*/
	ret = gpio_request(CONFIG_IPAM390_GPIO_BOOTMODE , "bootmode");
	if (ret)
	bootmode = 1;
	if (!bootmode) {
	ret = gpio_direction_input(CONFIG_IPAM390_GPIO_BOOTMODE);
	if (ret)
	bootmode = 1;
	}
	if (!bootmode)
	ret = gpio_get_value(CONFIG_IPAM390_GPIO_BOOTMODE);
	if (!bootmode)
	if (ret == 0)
	bootmode = 1;
	/*
	* LED red : on
	* LED green: off
	*/
	init_led(CONFIG_IPAM390_GPIO_LED_RED, "red", LED_ON);
	init_led(CONFIG_IPAM390_GPIO_LED_GREEN, "green", LED_OFF);
	return bootmode;
	}
	#endif