From 89b765c7f6ddfde07ba673dd4adbeb5da391a81b Mon Sep 17 00:00:00 2001 From: Sudhakar Rajashekhara Date: Thu, 10 Jun 2010 15:18:15 +0530 Subject: TI: DaVinci: Add board specific code for da850 EVM Provides initial support for TI OMAP-L138/DA850 SoC devices on a Logic PD EVM board. Provides: Initial boot and configuration. Support for i2c. UART support (console). Signed-off-by: Sudhakar Rajashekhara Acked-by: Ben Gardiner Reviewed-by: Wolfgang Denk Signed-off-by: Sandeep Paulraj --- board/davinci/da8xxevm/da850evm.c | 111 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 111 insertions(+) create mode 100644 board/davinci/da8xxevm/da850evm.c (limited to 'board/davinci/da8xxevm/da850evm.c') diff --git a/board/davinci/da8xxevm/da850evm.c b/board/davinci/da8xxevm/da850evm.c new file mode 100644 index 0000000..959b2c6 --- /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. + * Copyright (C) 2007 Sergey Kubushyn + * + * 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 +#include +#include +#include +#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; +} -- cgit v1.1