173 lines
4.2 KiB
C
173 lines
4.2 KiB
C
/*
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* Copyright (C) 2009 Matthias Kaehlcke <matthias@kaehlcke.net>
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*
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* See file CREDITS for list of people who contributed to this
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* project.
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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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#include <common.h>
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#include <driver.h>
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#include <environment.h>
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#include <fs.h>
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#include <init.h>
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#include <partition.h>
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#include <asm/armlinux.h>
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#include <asm/io.h>
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#include <asm/mach-types.h>
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#include <mach/ep93xx-regs.h>
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#include "edb93xx.h"
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/*
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* Up to 32MiB NOR type flash, connected to
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* CS line 6, data width is 16 bit
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*/
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static struct device_d cfi_dev = {
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.name = "cfi_flash",
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.map_base = 0x60000000,
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.size = EDB93XX_CFI_FLASH_SIZE,
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};
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static struct memory_platform_data ram_dev_pdata0 = {
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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 sdram0_dev = {
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.name = "mem",
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.map_base = CONFIG_EP93XX_SDRAM_BANK0_BASE,
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.size = CONFIG_EP93XX_SDRAM_BANK0_SIZE,
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.platform_data = &ram_dev_pdata0,
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};
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#if (CONFIG_EP93XX_SDRAM_NUM_BANKS >= 2)
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static struct memory_platform_data ram_dev_pdata1 = {
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.name = "ram1",
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.flags = DEVFS_RDWR,
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};
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static struct device_d sdram1_dev = {
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.name = "mem",
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.map_base = CONFIG_EP93XX_SDRAM_BANK1_BASE,
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.size = CONFIG_EP93XX_SDRAM_BANK1_SIZE,
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.platform_data = &ram_dev_pdata1,
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};
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#endif
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#if (CONFIG_EP93XX_SDRAM_NUM_BANKS >= 3)
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static struct memory_platform_data ram_dev_pdata2 = {
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.name = "ram2",
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.flags = DEVFS_RDWR,
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};
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static struct device_d sdram2_dev = {
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.name = "mem",
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.map_base = CONFIG_EP93XX_SDRAM_BANK2_BASE,
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.size = CONFIG_EP93XX_SDRAM_BANK2_SIZE,
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.platform_data = &ram_dev_pdata2,
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};
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#endif
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#if (CONFIG_EP93XX_SDRAM_NUM_BANKS == 4)
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static struct memory_platform_data ram_dev_pdata3 = {
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.name = "ram3",
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.flags = DEVFS_RDWR,
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};
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static struct device_d sdram3_dev = {
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.name = "mem",
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.map_base = CONFIG_EP93XX_SDRAM_BANK3_BASE,
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.size = CONFIG_EP93XX_SDRAM_BANK3_SIZE,
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.platform_data = &ram_dev_pdata3,
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};
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#endif
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static struct device_d eth_dev = {
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.name = "ep93xx_eth",
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};
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static int ep93xx_devices_init(void)
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{
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register_device(&cfi_dev);
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/*
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* Create partitions that should be
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* not touched by any regular user
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*/
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devfs_add_partition("nor0", 0x00000, 0x40000, PARTITION_FIXED, "self0");
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devfs_add_partition("nor0", 0x40000, 0x20000, PARTITION_FIXED, "env0");
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protect_file("/dev/env0", 1);
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register_device(&sdram0_dev);
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#if (CONFIG_EP93XX_SDRAM_NUM_BANKS >= 2)
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register_device(&sdram1_dev);
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#endif
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#if (CONFIG_EP93XX_SDRAM_NUM_BANKS >= 3)
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register_device(&sdram2_dev);
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#endif
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#if (CONFIG_EP93XX_SDRAM_NUM_BANKS == 4)
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register_device(&sdram3_dev);
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#endif
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armlinux_add_dram(&sdram0_dev);
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#if (CONFIG_EP93XX_SDRAM_NUM_BANKS >= 2)
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armlinux_add_dram(&sdram1_dev);
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#endif
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#if (CONFIG_EP93XX_SDRAM_NUM_BANKS >= 3)
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armlinux_add_dram(&sdram2_dev);
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#endif
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#if (CONFIG_EP93XX_SDRAM_NUM_BANKS == 4)
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armlinux_add_dram(&sdram3_dev);
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#endif
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register_device(ð_dev);
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armlinux_set_bootparams((void *)CONFIG_EP93XX_SDRAM_BANK0_BASE + 0x100);
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armlinux_set_architecture(MACH_TYPE);
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return 0;
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}
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device_initcall(ep93xx_devices_init);
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static struct device_d edb93xx_serial_device = {
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.name = "pl010_serial",
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.map_base = UART1_BASE,
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.size = 4096,
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};
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static int edb93xx_console_init(void)
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{
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struct syscon_regs *syscon = (struct syscon_regs *)SYSCON_BASE;
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/*
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* set UARTBAUD bit to drive UARTs with 14.7456MHz instead of
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* 14.7456/2 MHz
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*/
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uint32_t value = readl(&syscon->pwrcnt);
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value |= SYSCON_PWRCNT_UART_BAUD;
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writel(value, &syscon->pwrcnt);
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register_device(&edb93xx_serial_device);
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return 0;
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}
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console_initcall(edb93xx_console_init);
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