board/davinci/da8xxevm/da830evm.c - github/trini/u-boot - Gitiles

 /*
  * Copyright (C) 2009 Nick Thompson, GE Fanuc, Ltd. <nick.thompson@gefanuc.com>
  *
  * Base on code from TI. Original Notices follow:
  *
  * (C) Copyright 2008, Texas Instruments, Inc. http://www.ti.com/
  *
  * Modified for DA8xx EVM.
  *
  * Copyright (C) 2007 Sergey Kubushyn <ksi@koi8.net>
  *
  * Parts are shamelessly stolen from various TI sources, original copyright
  * follows:
  * -----------------------------------------------------------------
  *
  * Copyright (C) 2004 Texas Instruments.
  *
  * ----------------------------------------------------------------------------
  * 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.
  *
  * You should have received a copy of the GNU General Public License
  * along with this program; if not, write to the Free Software
  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  * ----------------------------------------------------------------------------
  */

 #include <common.h>
 #include <i2c.h>
 #include <net.h>
 #include <netdev.h>
 #include <asm/arch/hardware.h>
 #include <asm/arch/emif_defs.h>
 #include <asm/arch/emac_defs.h>
 #include <asm/io.h>
 #include "../common/misc.h"
 #include "common.h"

 DECLARE_GLOBAL_DATA_PTR;

 #define pinmux(x)	(&davinci_syscfg_regs->pinmux[x])

 /* SPI0 pin muxer settings */
 static const struct pinmux_config spi0_pins[] = {
 	{ pinmux(7), 1, 3 },
 	{ pinmux(7), 1, 4 },
 	{ pinmux(7), 1, 5 },
 	{ pinmux(7), 1, 6 },
 	{ pinmux(7), 1, 7 }
 };

 /* EMIF-A bus pins for 8-bit NAND support on CS3 */
 static const struct pinmux_config emifa_nand_pins[] = {
 	{ pinmux(13), 1, 6 },
 	{ pinmux(13), 1, 7 },
 	{ pinmux(14), 1, 0 },
 	{ pinmux(14), 1, 1 },
 	{ pinmux(14), 1, 2 },
 	{ pinmux(14), 1, 3 },
 	{ pinmux(14), 1, 4 },
 	{ pinmux(14), 1, 5 },
 	{ pinmux(15), 1, 7 },
 	{ pinmux(16), 1, 0 },
 	{ pinmux(18), 1, 1 },
 	{ pinmux(18), 1, 4 },
 	{ pinmux(18), 1, 5 },
 };

 /* EMAC PHY interface pins */
 static const struct pinmux_config emac_pins[] = {
 	{ pinmux(9), 0, 5 },
 	{ pinmux(10), 2, 1 },
 	{ pinmux(10), 2, 2 },
 	{ pinmux(10), 2, 3 },
 	{ pinmux(10), 2, 4 },
 	{ pinmux(10), 2, 5 },
 	{ pinmux(10), 2, 6 },
 	{ pinmux(10), 2, 7 },
 	{ pinmux(11), 2, 0 },
 	{ pinmux(11), 2, 1 },
 };

 /* UART pin muxer settings */
 static const struct pinmux_config uart_pins[] = {
 	{ pinmux(8), 2, 7 },
 	{ pinmux(9), 2, 0 }
 };

 /* I2C pin muxer settings */
 static const struct pinmux_config i2c_pins[] = {
 	{ pinmux(8), 2, 3 },
 	{ pinmux(8), 2, 4 }
 };

 /* USB0_DRVVBUS pin muxer settings */
 static const struct pinmux_config usb_pins[] = {
 	{ pinmux(9), 1, 1 }
 };

 static const struct pinmux_resource pinmuxes[] = {
 #ifdef CONFIG_SPI_FLASH
 	PINMUX_ITEM(spi0_pins),
 #endif
 	PINMUX_ITEM(uart_pins),
 	PINMUX_ITEM(i2c_pins),
 #ifdef CONFIG_USB_DA8XX
 	PINMUX_ITEM(usb_pins),
 #endif
 #ifdef CONFIG_USE_NAND
 	PINMUX_ITEM(emifa_nand_pins),
 #endif
 #if defined(CONFIG_DRIVER_TI_EMAC)
 	PINMUX_ITEM(emac_pins),
 #endif
 };

 static const struct lpsc_resource lpsc[] = {
 	{ DAVINCI_LPSC_AEMIF },	/* NAND, NOR */
 	{ DAVINCI_LPSC_SPI0 },	/* Serial Flash */
 	{ DAVINCI_LPSC_EMAC },	/* image download */
 	{ DAVINCI_LPSC_UART2 },	/* console */
 	{ DAVINCI_LPSC_GPIO },
 };

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

 #ifdef CONFIG_NAND_DAVINCI
 	/* EMIFA 100MHz clock select */
 	writel(readl(&davinci_syscfg_regs->cfgchip3) & ~2,
 	       &davinci_syscfg_regs->cfgchip3);
 	/* NAND CS setup */
 	writel((DAVINCI_ABCR_WSETUP(0) |
 		DAVINCI_ABCR_WSTROBE(2) |
 		DAVINCI_ABCR_WHOLD(0) |
 		DAVINCI_ABCR_RSETUP(0) |
 		DAVINCI_ABCR_RSTROBE(2) |
 		DAVINCI_ABCR_RHOLD(0) |
 		DAVINCI_ABCR_TA(2) |
 		DAVINCI_ABCR_ASIZE_8BIT),
 	       &davinci_emif_regs->ab2cr);
 #endif

 	/* arch number of the board */
 	gd->bd->bi_arch_number = MACH_TYPE_DAVINCI_DA830_EVM;

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

 	/*
 	 * 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;

 	/* 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_SPI0 | DAVINCI_SYSCFG_SUSPSRC_TIMER0 |
 		 DAVINCI_SYSCFG_SUSPSRC_UART2),
 	       &davinci_syscfg_regs->suspsrc);

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

 	/* enable the console UART */
 	writel((DAVINCI_UART_PWREMU_MGMT_FREE | DAVINCI_UART_PWREMU_MGMT_URRST |
 		DAVINCI_UART_PWREMU_MGMT_UTRST),
 	       &davinci_uart2_ctrl_regs->pwremu_mgmt);

 	return(0);
 }

 #if defined(CONFIG_DRIVER_TI_EMAC)

 #define PHY_SW_I2C_ADDR	0x5f /* Address of PHY on i2c bus */

 /*
  * Initializes on-board ethernet controllers.
  */
 int board_eth_init(bd_t *bis)
 {
 	u_int8_t mac_addr[6];
 	u_int8_t switch_start_cmd[2] = { 0x01, 0x23 };
 	struct eth_device *dev;

 	/* Read Ethernet MAC address from EEPROM */
 	if (dvevm_read_mac_address(mac_addr))
 		/* set address env if not already set */
 		davinci_sync_env_enetaddr(mac_addr);

 	/* read the address back from env */
 	if (!eth_getenv_enetaddr("ethaddr", mac_addr))
 		return -1;

 	/* enable the Ethernet switch in the 3 port PHY */
 	if (i2c_write(PHY_SW_I2C_ADDR, 0, 0,
 			switch_start_cmd, sizeof(switch_start_cmd))) {
 		printf("Ethernet switch start failed!\n");
 		return -1;
 	}

 	/* finally, initialise the driver */
 	if (!davinci_emac_initialize()) {
 		printf("Error: Ethernet init failed!\n");
 		return -1;
 	}

 	dev = eth_get_dev();

 	/* provide the resulting addr to the driver */
 	memcpy(dev->enetaddr, mac_addr, 6);
 	dev->write_hwaddr(dev);

 	return 0;
 }
 #endif /* CONFIG_DRIVER_TI_EMAC */
	/*
	* Copyright (C) 2009 Nick Thompson, GE Fanuc, Ltd. <nick.thompson@gefanuc.com>
	*
	* Base on code from TI. Original Notices follow:
	*
	* (C) Copyright 2008, Texas Instruments, Inc. http://www.ti.com/
	*
	* Modified for DA8xx EVM.
	*
	* Copyright (C) 2007 Sergey Kubushyn <ksi@koi8.net>
	*
	* Parts are shamelessly stolen from various TI sources, original copyright
	* follows:
	* -----------------------------------------------------------------
	*
	* Copyright (C) 2004 Texas Instruments.
	*
	* ----------------------------------------------------------------------------
	* 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.
	*
	* You should have received a copy of the GNU General Public License
	* along with this program; if not, write to the Free Software
	* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
	* ----------------------------------------------------------------------------
	*/

	#include <common.h>
	#include <i2c.h>
	#include <net.h>
	#include <netdev.h>
	#include <asm/arch/hardware.h>
	#include <asm/arch/emif_defs.h>
	#include <asm/arch/emac_defs.h>
	#include <asm/io.h>
	#include "../common/misc.h"
	#include "common.h"

	DECLARE_GLOBAL_DATA_PTR;

	#define pinmux(x) (&davinci_syscfg_regs->pinmux[x])

	/* SPI0 pin muxer settings */
	static const struct pinmux_config spi0_pins[] = {
	{ pinmux(7), 1, 3 },
	{ pinmux(7), 1, 4 },
	{ pinmux(7), 1, 5 },
	{ pinmux(7), 1, 6 },
	{ pinmux(7), 1, 7 }
	};

	/* EMIF-A bus pins for 8-bit NAND support on CS3 */
	static const struct pinmux_config emifa_nand_pins[] = {
	{ pinmux(13), 1, 6 },
	{ pinmux(13), 1, 7 },
	{ pinmux(14), 1, 0 },
	{ pinmux(14), 1, 1 },
	{ pinmux(14), 1, 2 },
	{ pinmux(14), 1, 3 },
	{ pinmux(14), 1, 4 },
	{ pinmux(14), 1, 5 },
	{ pinmux(15), 1, 7 },
	{ pinmux(16), 1, 0 },
	{ pinmux(18), 1, 1 },
	{ pinmux(18), 1, 4 },
	{ pinmux(18), 1, 5 },
	};

	/* EMAC PHY interface pins */
	static const struct pinmux_config emac_pins[] = {
	{ pinmux(9), 0, 5 },
	{ pinmux(10), 2, 1 },
	{ pinmux(10), 2, 2 },
	{ pinmux(10), 2, 3 },
	{ pinmux(10), 2, 4 },
	{ pinmux(10), 2, 5 },
	{ pinmux(10), 2, 6 },
	{ pinmux(10), 2, 7 },
	{ pinmux(11), 2, 0 },
	{ pinmux(11), 2, 1 },
	};

	/* UART pin muxer settings */
	static const struct pinmux_config uart_pins[] = {
	{ pinmux(8), 2, 7 },
	{ pinmux(9), 2, 0 }
	};

	/* I2C pin muxer settings */
	static const struct pinmux_config i2c_pins[] = {
	{ pinmux(8), 2, 3 },
	{ pinmux(8), 2, 4 }
	};

	/* USB0_DRVVBUS pin muxer settings */
	static const struct pinmux_config usb_pins[] = {
	{ pinmux(9), 1, 1 }
	};

	static const struct pinmux_resource pinmuxes[] = {
	#ifdef CONFIG_SPI_FLASH
	PINMUX_ITEM(spi0_pins),
	#endif
	PINMUX_ITEM(uart_pins),
	PINMUX_ITEM(i2c_pins),
	#ifdef CONFIG_USB_DA8XX
	PINMUX_ITEM(usb_pins),
	#endif
	#ifdef CONFIG_USE_NAND
	PINMUX_ITEM(emifa_nand_pins),
	#endif
	#if defined(CONFIG_DRIVER_TI_EMAC)
	PINMUX_ITEM(emac_pins),
	#endif
	};

	static const struct lpsc_resource lpsc[] = {
	{ DAVINCI_LPSC_AEMIF }, /* NAND, NOR */
	{ DAVINCI_LPSC_SPI0 }, /* Serial Flash */
	{ DAVINCI_LPSC_EMAC }, /* image download */
	{ DAVINCI_LPSC_UART2 }, /* console */
	{ DAVINCI_LPSC_GPIO },
	};

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

	#ifdef CONFIG_NAND_DAVINCI
	/* EMIFA 100MHz clock select */
	writel(readl(&davinci_syscfg_regs->cfgchip3) & ~2,
	&davinci_syscfg_regs->cfgchip3);
	/* NAND CS setup */
	writel((DAVINCI_ABCR_WSETUP(0) \|
	DAVINCI_ABCR_WSTROBE(2) \|
	DAVINCI_ABCR_WHOLD(0) \|
	DAVINCI_ABCR_RSETUP(0) \|
	DAVINCI_ABCR_RSTROBE(2) \|
	DAVINCI_ABCR_RHOLD(0) \|
	DAVINCI_ABCR_TA(2) \|
	DAVINCI_ABCR_ASIZE_8BIT),
	&davinci_emif_regs->ab2cr);
	#endif

	/* arch number of the board */
	gd->bd->bi_arch_number = MACH_TYPE_DAVINCI_DA830_EVM;

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

	/*
	* 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;

	/* 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_SPI0 \| DAVINCI_SYSCFG_SUSPSRC_TIMER0 \|
	DAVINCI_SYSCFG_SUSPSRC_UART2),
	&davinci_syscfg_regs->suspsrc);

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

	/* enable the console UART */
	writel((DAVINCI_UART_PWREMU_MGMT_FREE \| DAVINCI_UART_PWREMU_MGMT_URRST \|
	DAVINCI_UART_PWREMU_MGMT_UTRST),
	&davinci_uart2_ctrl_regs->pwremu_mgmt);

	return(0);
	}

	#if defined(CONFIG_DRIVER_TI_EMAC)

	#define PHY_SW_I2C_ADDR 0x5f /* Address of PHY on i2c bus */

	/*
	* Initializes on-board ethernet controllers.
	*/
	int board_eth_init(bd_t *bis)
	{
	u_int8_t mac_addr[6];
	u_int8_t switch_start_cmd[2] = { 0x01, 0x23 };
	struct eth_device *dev;

	/* Read Ethernet MAC address from EEPROM */
	if (dvevm_read_mac_address(mac_addr))
	/* set address env if not already set */
	davinci_sync_env_enetaddr(mac_addr);

	/* read the address back from env */
	if (!eth_getenv_enetaddr("ethaddr", mac_addr))
	return -1;

	/* enable the Ethernet switch in the 3 port PHY */
	if (i2c_write(PHY_SW_I2C_ADDR, 0, 0,
	switch_start_cmd, sizeof(switch_start_cmd))) {
	printf("Ethernet switch start failed!\n");
	return -1;
	}

	/* finally, initialise the driver */
	if (!davinci_emac_initialize()) {
	printf("Error: Ethernet init failed!\n");
	return -1;
	}

	dev = eth_get_dev();

	/* provide the resulting addr to the driver */
	memcpy(dev->enetaddr, mac_addr, 6);
	dev->write_hwaddr(dev);

	return 0;
	}
	#endif /* CONFIG_DRIVER_TI_EMAC */