diff options
Diffstat (limited to 'board/davinci/da8xxevm/da850evm.c')
| -rw-r--r-- | board/davinci/da8xxevm/da850evm.c | 111 | 
1 files changed, 111 insertions, 0 deletions
| diff --git a/board/davinci/da8xxevm/da850evm.c b/board/davinci/da8xxevm/da850evm.c new file mode 100644 index 000000000..959b2c6ff --- /dev/null +++ b/board/davinci/da8xxevm/da850evm.c @@ -0,0 +1,111 @@ +/* + * 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> + * + * 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 <asm/arch/hardware.h> +#include <asm/io.h> +#include "../common/misc.h" +#include "common.h" + +DECLARE_GLOBAL_DATA_PTR; + +#define pinmux	(&davinci_syscfg_regs->pinmux) + +/* SPI0 pin muxer settings */ +static const struct pinmux_config spi1_pins[] = { +	{ pinmux[5], 1, 1 }, +	{ pinmux[5], 1, 2 }, +	{ pinmux[5], 1, 4 }, +	{ pinmux[5], 1, 5 } +}; + +/* UART pin muxer settings */ +static const struct pinmux_config uart_pins[] = { +	{ pinmux[0], 4, 6 }, +	{ pinmux[0], 4, 7 }, +	{ pinmux[4], 2, 4 }, +	{ pinmux[4], 2, 5 } +}; + +/* I2C pin muxer settings */ +static const struct pinmux_config i2c_pins[] = { +	{ pinmux[4], 2, 2 }, +	{ pinmux[4], 2, 3 } +}; + +static const struct pinmux_resource pinmuxes[] = { +#ifdef CONFIG_SPI_FLASH +	PINMUX_ITEM(spi1_pins), +#endif +	PINMUX_ITEM(uart_pins), +	PINMUX_ITEM(i2c_pins), +}; + +static const struct lpsc_resource lpsc[] = { +	{ DAVINCI_LPSC_AEMIF },	/* NAND, NOR */ +	{ DAVINCI_LPSC_SPI1 },	/* 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 + +	/* 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; + +	/* +	 * 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_SPI1 | 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; +} |