| /* |
| * Copyright (C) 2007 Sascha Hauer, Pengutronix |
| * |
| * This program is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU General Public License as |
| * published by the Free Software Foundation; either version 2 of |
| * the License, or (at your option) any later version. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, write to the Free Software |
| * Foundation, Inc., 59 Temple Place, Suite 330, Boston, |
| * MA 02111-1307 USA |
| * |
| */ |
| |
| #include <common.h> |
| #include <net.h> |
| #include <init.h> |
| #include <environment.h> |
| #include <fec.h> |
| #include <asm/armlinux.h> |
| #include <generated/mach-types.h> |
| #include <partition.h> |
| #include <fs.h> |
| #include <fcntl.h> |
| #include <asm/io.h> |
| #include <asm/hardware.h> |
| #include <nand.h> |
| #include <linux/mtd/nand.h> |
| #include <mach/board.h> |
| #include <mach/at91sam9_smc.h> |
| #include <mach/sam9_smc.h> |
| #include <gpio.h> |
| #include <mach/io.h> |
| #include <mach/at91_pmc.h> |
| #include <mach/at91_rstc.h> |
| |
| /* |
| * board revision encoding |
| * bit 0: |
| * 0 => 1 mmc |
| * 1 => 2 mmcs (board from revision C) |
| */ |
| #define HAVE_2MMC (1 << 0) |
| static void ek_set_board_type(void) |
| { |
| if (machine_is_at91sam9g20ek()) { |
| armlinux_set_architecture(MACH_TYPE_AT91SAM9G20EK); |
| #ifdef CONFIG_AT91_HAVE_2MMC |
| armlinux_set_revision(HAVE_2MMC); |
| #endif |
| } else { |
| armlinux_set_architecture(MACH_TYPE_AT91SAM9260EK); |
| } |
| } |
| |
| static struct atmel_nand_data nand_pdata = { |
| .ale = 21, |
| .cle = 22, |
| /* .det_pin = ... not connected */ |
| .ecc_base = (void __iomem *)(AT91_BASE_SYS + AT91_ECC), |
| .ecc_mode = NAND_ECC_HW, |
| .rdy_pin = AT91_PIN_PC13, |
| .enable_pin = AT91_PIN_PC14, |
| #if defined(CONFIG_MTD_NAND_ATMEL_BUSWIDTH_16) |
| .bus_width_16 = 1, |
| #else |
| .bus_width_16 = 0, |
| #endif |
| }; |
| |
| static struct sam9_smc_config ek_nand_smc_config = { |
| .ncs_read_setup = 0, |
| .nrd_setup = 1, |
| .ncs_write_setup = 0, |
| .nwe_setup = 1, |
| |
| .ncs_read_pulse = 3, |
| .nrd_pulse = 3, |
| .ncs_write_pulse = 3, |
| .nwe_pulse = 3, |
| |
| .read_cycle = 5, |
| .write_cycle = 5, |
| |
| .mode = AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE, |
| .tdf_cycles = 2, |
| }; |
| |
| static void ek_add_device_nand(void) |
| { |
| /* setup bus-width (8 or 16) */ |
| if (nand_pdata.bus_width_16) |
| ek_nand_smc_config.mode |= AT91_SMC_DBW_16; |
| else |
| ek_nand_smc_config.mode |= AT91_SMC_DBW_8; |
| |
| /* configure chip-select 3 (NAND) */ |
| sam9_smc_configure(3, &ek_nand_smc_config); |
| |
| at91_add_device_nand(&nand_pdata); |
| } |
| |
| static struct at91_ether_platform_data macb_pdata = { |
| .flags = AT91SAM_ETHER_RMII, |
| .phy_addr = 0, |
| }; |
| |
| static void at91sam9260ek_phy_reset(void) |
| { |
| unsigned long rstc; |
| at91_sys_write(AT91_PMC_PCER, 1 << AT91SAM9260_ID_EMAC); |
| |
| at91_set_gpio_input(AT91_PIN_PA14, 0); |
| at91_set_gpio_input(AT91_PIN_PA15, 0); |
| at91_set_gpio_input(AT91_PIN_PA17, 0); |
| at91_set_gpio_input(AT91_PIN_PA25, 0); |
| at91_set_gpio_input(AT91_PIN_PA26, 0); |
| at91_set_gpio_input(AT91_PIN_PA28, 0); |
| |
| rstc = at91_sys_read(AT91_RSTC_MR) & AT91_RSTC_ERSTL; |
| |
| /* Need to reset PHY -> 500ms reset */ |
| at91_sys_write(AT91_RSTC_MR, AT91_RSTC_KEY | |
| (AT91_RSTC_ERSTL & (0x0d << 8)) | |
| AT91_RSTC_URSTEN); |
| |
| at91_sys_write(AT91_RSTC_CR, AT91_RSTC_KEY | AT91_RSTC_EXTRST); |
| |
| /* Wait for end hardware reset */ |
| while (!(at91_sys_read(AT91_RSTC_SR) & AT91_RSTC_NRSTL)); |
| |
| /* Restore NRST value */ |
| at91_sys_write(AT91_RSTC_MR, AT91_RSTC_KEY | |
| (rstc) | |
| AT91_RSTC_URSTEN); |
| } |
| |
| static int at91sam9260ek_devices_init(void) |
| { |
| ek_add_device_nand(); |
| at91sam9260ek_phy_reset(); |
| at91_add_device_eth(&macb_pdata); |
| |
| at91_add_device_sdram(64 * 1024 * 1024); |
| armlinux_set_bootparams((void *)(AT91_CHIPSELECT_1 + 0x100)); |
| ek_set_board_type(); |
| |
| devfs_add_partition("nand0", 0x00000, 0x80000, PARTITION_FIXED, "self_raw"); |
| dev_add_bb_dev("self_raw", "self0"); |
| devfs_add_partition("nand0", 0x40000, 0x40000, PARTITION_FIXED, "env_raw"); |
| dev_add_bb_dev("env_raw", "env0"); |
| |
| return 0; |
| } |
| |
| device_initcall(at91sam9260ek_devices_init); |
| |
| static int at91sam9260ek_console_init(void) |
| { |
| at91_register_uart(0, 0); |
| return 0; |
| } |
| |
| console_initcall(at91sam9260ek_console_init); |