152 lines
3.2 KiB
C
152 lines
3.2 KiB
C
/*
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* Copyright (C) 2009 Ivo Clarysse
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*
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* Based on imx27ads.c,
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* Copyright (C) 2007 Sascha Hauer, Pengutronix
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*
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*/
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#include <common.h>
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#include <net.h>
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#include <cfi_flash.h>
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#include <init.h>
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#include <environment.h>
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#include <mach/imx-regs.h>
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#include <asm/armlinux.h>
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#include <asm/io.h>
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#include <mach/gpio.h>
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#include <partition.h>
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#include <fs.h>
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#include <fcntl.h>
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#include <asm/mach-types.h>
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#include <mach/imx-nand.h>
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static struct device_d cfi_dev = {
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.name = "cfi_flash",
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.map_base = 0xC8000000,
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.size = 32 * 1024 * 1024,
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};
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static struct memory_platform_data ram_pdata = {
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.name = "ram0",
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.flags = DEVFS_RDWR,
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};
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static struct device_d sdram_dev = {
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.name = "mem",
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.map_base = 0xc0000000,
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.size = 64 * 1024 * 1024,
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.platform_data = &ram_pdata,
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};
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struct imx_nand_platform_data nand_info = {
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.width = 1,
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.hw_ecc = 1,
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};
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static struct device_d nand_dev = {
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.name = "imx_nand",
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.map_base = 0xDF003000,
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.platform_data = &nand_info,
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};
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static struct device_d cs8900_dev = {
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.name = "cs8900",
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.map_base = IMX_CS1_BASE,
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// IRQ is connected to UART3_RTS
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};
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static int imx21ads_timing_init(void)
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{
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u32 temp;
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/* Configure External Interface Module */
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/* CS0: burst flash */
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CS0U = 0x00003E00;
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CS0L = 0x00000E01;
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/* CS1: Ethernet controller, external UART, memory-mapped I/O (16-bit) */
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CS1U = 0x00002000;
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CS1L = 0x11118501;
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/* CS2: disable (not available, since CSD0 in use) */
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CS2U = 0x0;
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CS2L = 0x0;
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/* CS3: disable */
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CS3U = 0x0;
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CS3L = 0x0;
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/* CS4: disable */
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CS4U = 0x0;
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CS4L = 0x0;
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/* CS5: disable */
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CS5U = 0x0;
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CS5L = 0x0;
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temp = PCDR0;
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temp &= ~0xF000;
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temp |= 0xA000; /* Set NFC divider; 0xA yields 24.18MHz */
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PCDR0 = temp;
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return 0;
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}
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core_initcall(imx21ads_timing_init);
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static int mx21ads_devices_init(void)
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{
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int i;
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unsigned int mode[] = {
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PE12_PF_UART1_TXD,
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PE13_PF_UART1_RXD,
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PE14_PF_UART1_CTS,
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PE15_PF_UART1_RTS,
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};
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/* initizalize gpios */
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for (i = 0; i < ARRAY_SIZE(mode); i++)
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imx_gpio_mode(mode[i]);
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register_device(&cfi_dev);
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register_device(&sdram_dev);
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register_device(&nand_dev);
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register_device(&cs8900_dev);
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armlinux_add_dram(&sdram_dev);
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armlinux_set_bootparams((void *)0xc0000100);
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armlinux_set_architecture(MACH_TYPE_MX21ADS);
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return 0;
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}
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device_initcall(mx21ads_devices_init);
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static struct device_d mx21ads_serial_device = {
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.name = "imx_serial",
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.map_base = IMX_UART1_BASE,
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.size = 4096,
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};
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static int mx21ads_console_init(void)
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{
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register_device(&mx21ads_serial_device);
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return 0;
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}
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console_initcall(mx21ads_console_init);
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