2 * Copyright (C) 2010 Texas Instruments Incorporated - http://www.ti.com/
4 * Based on da830evm.c. Original Copyrights follow:
6 * Copyright (C) 2009 Nick Thompson, GE Fanuc, Ltd. <nick.thompson@gefanuc.com>
7 * Copyright (C) 2007 Sergey Kubushyn <ksi@koi8.net>
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
28 #include <asm/arch/hardware.h>
29 #include <asm/arch/emif_defs.h>
30 #include <asm/arch/emac_defs.h>
32 #include "../common/misc.h"
35 DECLARE_GLOBAL_DATA_PTR;
37 #define pinmux(x) (&davinci_syscfg_regs->pinmux[x])
39 /* SPI0 pin muxer settings */
40 static const struct pinmux_config spi1_pins[] = {
47 /* UART pin muxer settings */
48 static const struct pinmux_config uart_pins[] = {
55 #ifdef CONFIG_DRIVER_TI_EMAC
56 static const struct pinmux_config emac_pins[] = {
75 #endif /* CONFIG_DRIVER_TI_EMAC */
77 /* I2C pin muxer settings */
78 static const struct pinmux_config i2c_pins[] = {
83 #ifdef CONFIG_NAND_DAVINCI
84 const struct pinmux_config nand_pins[] = {
102 static const struct pinmux_resource pinmuxes[] = {
103 #ifdef CONFIG_SPI_FLASH
104 PINMUX_ITEM(spi1_pins),
106 PINMUX_ITEM(uart_pins),
107 PINMUX_ITEM(i2c_pins),
108 #ifdef CONFIG_NAND_DAVINCI
109 PINMUX_ITEM(nand_pins),
113 static const struct lpsc_resource lpsc[] = {
114 { DAVINCI_LPSC_AEMIF }, /* NAND, NOR */
115 { DAVINCI_LPSC_SPI1 }, /* Serial Flash */
116 { DAVINCI_LPSC_EMAC }, /* image download */
117 { DAVINCI_LPSC_UART2 }, /* console */
118 { DAVINCI_LPSC_GPIO },
123 #ifndef CONFIG_USE_IRQ
128 #ifdef CONFIG_NAND_DAVINCI
130 * NAND CS setup - cycle counts based on da850evm NAND timings in the
131 * Linux kernel @ 25MHz EMIFA
133 writel((DAVINCI_ABCR_WSETUP(0) |
134 DAVINCI_ABCR_WSTROBE(0) |
135 DAVINCI_ABCR_WHOLD(0) |
136 DAVINCI_ABCR_RSETUP(0) |
137 DAVINCI_ABCR_RSTROBE(1) |
138 DAVINCI_ABCR_RHOLD(0) |
140 DAVINCI_ABCR_ASIZE_8BIT),
141 &davinci_emif_regs->ab2cr); /* CS3 */
144 /* arch number of the board */
145 gd->bd->bi_arch_number = MACH_TYPE_DAVINCI_DA850_EVM;
147 /* address of boot parameters */
148 gd->bd->bi_boot_params = LINUX_BOOT_PARAM_ADDR;
151 * Power on required peripherals
152 * ARM does not have access by default to PSC0 and PSC1
153 * assuming here that the DSP bootloader has set the IOPU
154 * such that PSC access is available to ARM
156 if (da8xx_configure_lpsc_items(lpsc, ARRAY_SIZE(lpsc)))
159 /* setup the SUSPSRC for ARM to control emulation suspend */
160 writel(readl(&davinci_syscfg_regs->suspsrc) &
161 ~(DAVINCI_SYSCFG_SUSPSRC_EMAC | DAVINCI_SYSCFG_SUSPSRC_I2C |
162 DAVINCI_SYSCFG_SUSPSRC_SPI1 | DAVINCI_SYSCFG_SUSPSRC_TIMER0 |
163 DAVINCI_SYSCFG_SUSPSRC_UART2),
164 &davinci_syscfg_regs->suspsrc);
166 /* configure pinmux settings */
167 if (davinci_configure_pin_mux_items(pinmuxes, ARRAY_SIZE(pinmuxes)))
170 #ifdef CONFIG_DRIVER_TI_EMAC
171 if (davinci_configure_pin_mux(emac_pins, ARRAY_SIZE(emac_pins)) != 0)
173 /* set cfgchip3 to select MII */
174 writel(readl(&davinci_syscfg_regs->cfgchip3) & ~(1 << 8),
175 &davinci_syscfg_regs->cfgchip3);
176 #endif /* CONFIG_DRIVER_TI_EMAC */
178 /* enable the console UART */
179 writel((DAVINCI_UART_PWREMU_MGMT_FREE | DAVINCI_UART_PWREMU_MGMT_URRST |
180 DAVINCI_UART_PWREMU_MGMT_UTRST),
181 &davinci_uart2_ctrl_regs->pwremu_mgmt);
186 #ifdef CONFIG_DRIVER_TI_EMAC
189 * Initializes on-board ethernet controllers.
191 int board_eth_init(bd_t *bis)
193 if (!davinci_emac_initialize()) {
194 printf("Error: Ethernet init failed!\n");
200 #endif /* CONFIG_DRIVER_TI_EMAC */