186 lines
4.4 KiB
C
186 lines
4.4 KiB
C
/*
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* Copyright (C) 2007 Sascha Hauer, Pengutronix
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* Copyright (C) 2013 Fabio Porcedda <fabio.porcedda@gmail.com>, Telit
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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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#include <asm/armlinux.h>
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#include <common.h>
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#include <gpio.h>
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#include <init.h>
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#include <linux/clk.h>
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#include <mach/at91_rstc.h>
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#include <mach/at91sam9_smc.h>
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#include <mach/board.h>
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#include <mach/io.h>
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#include <mach/iomux.h>
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#include <nand.h>
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#define BOOTSTRAP_SIZE 0xC0000
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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 = -EINVAL,
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.rdy_pin = AT91_PIN_PC13,
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.enable_pin = AT91_PIN_PC14,
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.on_flash_bbt = 1,
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};
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static struct sam9_smc_config evk_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 |
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AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_DBW_8,
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.tdf_cycles = 2,
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};
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static void evk_add_device_nand(void)
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{
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/* configure chip-select 3 (NAND) */
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sam9_smc_configure(0, 3, &evk_nand_smc_config);
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at91_add_device_nand(&nand_pdata);
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}
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static struct macb_platform_data macb_pdata = {
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.phy_interface = PHY_INTERFACE_MODE_RMII,
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.phy_addr = 0,
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};
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static void evk_phy_reset(void)
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{
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unsigned long rstc;
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struct clk *clk = clk_get(NULL, "macb_clk");
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clk_enable(clk);
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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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;
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/* Restore NRST value */
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at91_sys_write(AT91_RSTC_MR, AT91_RSTC_KEY | (rstc) | AT91_RSTC_URSTEN);
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}
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/*
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* MCI (SD/MMC)
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*/
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#if defined(CONFIG_MCI_ATMEL)
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static struct atmel_mci_platform_data __initdata evk_mci_data = {
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.bus_width = 4,
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.detect_pin = AT91_PIN_PA27,
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.wp_pin = AT91_PIN_PA25,
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};
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static void evk_usb_add_device_mci(void)
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{
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at91_add_device_mci(0, &evk_mci_data);
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}
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#else
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static void evk_usb_add_device_mci(void) {}
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#endif
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/*
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* USB Host port
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*/
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static struct at91_usbh_data __initdata evk_usbh_data = {
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.ports = 2,
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.vbus_pin = { -EINVAL, -EINVAL },
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};
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/*
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* USB Device port
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*/
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static struct at91_udc_data __initdata evk_udc_data = {
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.vbus_pin = AT91_PIN_PC4,
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.pullup_pin = -EINVAL, /* pull-up driven by UDC */
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};
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static int evk_mem_init(void)
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{
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at91_add_device_sdram(0);
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return 0;
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}
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mem_initcall(evk_mem_init);
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static int evk_devices_init(void)
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{
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evk_add_device_nand();
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evk_phy_reset();
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at91_add_device_eth(0, &macb_pdata);
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at91_add_device_usbh_ohci(&evk_usbh_data);
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at91_add_device_udc(&evk_udc_data);
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evk_usb_add_device_mci();
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devfs_add_partition("nand0", 0x00000, BOOTSTRAP_SIZE,
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DEVFS_PARTITION_FIXED, "bootstrap_raw");
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dev_add_bb_dev("bootstrap_raw", "bootstrap");
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devfs_add_partition("nand0", BOOTSTRAP_SIZE, SZ_256K,
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DEVFS_PARTITION_FIXED, "self_raw");
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dev_add_bb_dev("self_raw", "self0");
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devfs_add_partition("nand0", BOOTSTRAP_SIZE + SZ_256K, SZ_128K,
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DEVFS_PARTITION_FIXED, "env_raw");
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dev_add_bb_dev("env_raw", "env0");
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devfs_add_partition("nand0", BOOTSTRAP_SIZE + SZ_256K + SZ_128K,
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SZ_128K, DEVFS_PARTITION_FIXED, "env_raw1");
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dev_add_bb_dev("env_raw1", "env1");
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return 0;
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}
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device_initcall(evk_devices_init);
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static int evk_console_init(void)
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{
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barebox_set_model("Telit EVK-PRO3");
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barebox_set_hostname("evkpr03");
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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(evk_console_init);
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static int evk_main_clock(void)
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{
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at91_set_main_clock(6000000);
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return 0;
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}
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pure_initcall(evk_main_clock);
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