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authorSudhakar Rajashekhara <sudhakar.raj@ti.com>2010-06-10 15:18:15 +0530
committerSandeep Paulraj <s-paulraj@ti.com>2010-06-10 12:04:42 -0400
commit89b765c7f6ddfde07ba673dd4adbeb5da391a81b (patch)
tree39dc79a32d19e15b5742906ac483da35bd6708e4 /board/davinci/da8xxevm/da850evm.c
parent158557001afe167dcb848bb14ba0f2f20aeb25a1 (diff)
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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 <sudhakar.raj@ti.com> Acked-by: Ben Gardiner <bengardiner@nanometrics.ca> Reviewed-by: Wolfgang Denk <wd@denx.de> Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com>
Diffstat (limited to 'board/davinci/da8xxevm/da850evm.c')
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diff --git a/board/davinci/da8xxevm/da850evm.c b/board/davinci/da8xxevm/da850evm.c
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+++ b/board/davinci/da8xxevm/da850evm.c
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+/*
+ * 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;
+}