152 lines
3.9 KiB
C
152 lines
3.9 KiB
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 <init.h>
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#include <environment.h>
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#include <fec.h>
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#include <asm/armlinux.h>
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#include <asm/mach-types.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/io.h>
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#include <asm/hardware.h>
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#include <nand.h>
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#include <linux/mtd/nand.h>
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#include <mach/board.h>
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#include <mach/at91sam9_smc.h>
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#include <mach/sam9_smc.h>
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#include <gpio.h>
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#include <mach/io.h>
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#include <mach/at91_pmc.h>
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#include <mach/at91_rstc.h>
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static struct atmel_nand_data nand_pdata = {
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.ale = 21,
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.cle = 22,
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/* .det_pin = ... not connected */
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.ecc_base = (void __iomem *)(AT91_BASE_SYS + AT91_ECC),
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.ecc_mode = NAND_ECC_HW,
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.rdy_pin = AT91_PIN_PC13,
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.enable_pin = AT91_PIN_PC14,
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#if defined(CONFIG_MTD_NAND_ATMEL_BUSWIDTH_16)
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.bus_width_16 = 1,
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#else
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.bus_width_16 = 0,
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#endif
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};
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static struct sam9_smc_config ek_nand_smc_config = {
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.ncs_read_setup = 0,
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.nrd_setup = 1,
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.ncs_write_setup = 0,
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.nwe_setup = 1,
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.ncs_read_pulse = 3,
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.nrd_pulse = 3,
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.ncs_write_pulse = 3,
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.nwe_pulse = 3,
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.read_cycle = 5,
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.write_cycle = 5,
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.mode = AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE,
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.tdf_cycles = 2,
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};
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static void ek_add_device_nand(void)
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{
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/* setup bus-width (8 or 16) */
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if (nand_pdata.bus_width_16)
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ek_nand_smc_config.mode |= AT91_SMC_DBW_16;
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else
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ek_nand_smc_config.mode |= AT91_SMC_DBW_8;
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/* configure chip-select 3 (NAND) */
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sam9_smc_configure(3, &ek_nand_smc_config);
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at91_add_device_nand(&nand_pdata);
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}
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static struct at91_ether_platform_data macb_pdata = {
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.flags = AT91SAM_ETHER_RMII,
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.phy_addr = 0,
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};
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static void at91sam9260ek_phy_reset(void)
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{
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unsigned long rstc;
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at91_sys_write(AT91_PMC_PCER, 1 << AT91SAM9260_ID_EMAC);
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at91_set_gpio_input(AT91_PIN_PA14, 0);
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at91_set_gpio_input(AT91_PIN_PA15, 0);
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at91_set_gpio_input(AT91_PIN_PA17, 0);
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at91_set_gpio_input(AT91_PIN_PA25, 0);
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at91_set_gpio_input(AT91_PIN_PA26, 0);
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at91_set_gpio_input(AT91_PIN_PA28, 0);
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rstc = at91_sys_read(AT91_RSTC_MR) & AT91_RSTC_ERSTL;
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/* Need to reset PHY -> 500ms reset */
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at91_sys_write(AT91_RSTC_MR, AT91_RSTC_KEY |
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(AT91_RSTC_ERSTL & (0x0d << 8)) |
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AT91_RSTC_URSTEN);
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at91_sys_write(AT91_RSTC_CR, AT91_RSTC_KEY | AT91_RSTC_EXTRST);
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/* Wait for end hardware reset */
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while (!(at91_sys_read(AT91_RSTC_SR) & AT91_RSTC_NRSTL));
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/* Restore NRST value */
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at91_sys_write(AT91_RSTC_MR, AT91_RSTC_KEY |
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(rstc) |
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AT91_RSTC_URSTEN);
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}
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static int at91sam9260ek_devices_init(void)
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{
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ek_add_device_nand();
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at91sam9260ek_phy_reset();
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at91_add_device_eth(&macb_pdata);
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at91_add_device_sdram(64 * 1024 * 1024);
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armlinux_set_bootparams((void *)(AT91_CHIPSELECT_1 + 0x100));
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armlinux_set_architecture(MACH_TYPE_AT91SAM9260EK);
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devfs_add_partition("nand0", 0x00000, 0x80000, PARTITION_FIXED, "self_raw");
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dev_add_bb_dev("self_raw", "self0");
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devfs_add_partition("nand0", 0x40000, 0x40000, PARTITION_FIXED, "env_raw");
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dev_add_bb_dev("env_raw", "env0");
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return 0;
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}
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device_initcall(at91sam9260ek_devices_init);
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static int at91sam9260ek_console_init(void)
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{
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at91_register_uart(0, 0);
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return 0;
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}
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console_initcall(at91sam9260ek_console_init);
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