2 * Copyright (C) 2008, Guennadi Liakhovetski <lg@denx.de>
3 * Copyright 2008-2009 Freescale Semiconductor, Inc. All Rights Reserved.
4 * Modifications for MX31 3Stack board
6 * See file CREDITS for list of people who contributed to this
9 * This program is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU General Public License as
11 * published by the Free Software Foundation; either version 2 of
12 * the License, or (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., 59 Temple Place, Suite 330, Boston,
27 #include <asm/arch/mx31.h>
28 #include <asm/arch/mx31-regs.h>
30 DECLARE_GLOBAL_DATA_PTR;
34 gd->bd->bi_dram[0].start = PHYS_SDRAM_1;
35 gd->bd->bi_dram[0].size = PHYS_SDRAM_1_SIZE;
42 /* CS5: Debug board for ethernet */
43 __REG(CSCR_U(5)) = 0x0000D843;
44 __REG(CSCR_L(5)) = 0x22252521;
45 __REG(CSCR_A(5)) = 0x22220A00;
47 /* setup pins for UART1 */
48 mx31_gpio_mux(MUX_RXD1__UART1_RXD_MUX);
49 mx31_gpio_mux(MUX_TXD1__UART1_TXD_MUX);
50 mx31_gpio_mux(MUX_RTS1__UART1_RTS_B);
51 mx31_gpio_mux(MUX_CTS1__UART1_CTS_B);
54 mx31_gpio_mux((MUX_CTL_FUNC << 8) | MUX_CTL_CSPI2_SS2);
55 mx31_gpio_mux((MUX_CTL_FUNC << 8) | MUX_CTL_CSPI2_SCLK);
56 mx31_gpio_mux((MUX_CTL_FUNC << 8) | MUX_CTL_CSPI2_SPI_RDY);
57 mx31_gpio_mux((MUX_CTL_FUNC << 8) | MUX_CTL_CSPI2_MOSI);
58 mx31_gpio_mux((MUX_CTL_FUNC << 8) | MUX_CTL_CSPI2_MISO);
59 mx31_gpio_mux((MUX_CTL_FUNC << 8) | MUX_CTL_CSPI2_SS0);
60 mx31_gpio_mux((MUX_CTL_FUNC << 8) | MUX_CTL_CSPI2_SS1);
62 /* start SPI2 clock */
63 __REG(CCM_CGR2) = __REG(CCM_CGR2) | (3 << 4);
65 gd->bd->bi_arch_number = MACH_TYPE_MX31_3DS; /* board id for linux */
66 gd->bd->bi_boot_params = 0x80000100; /* adress of boot parameters */
73 printf("Board: MX31 3Stack\n");