AT91: add board support for Pcontrol_G20
Board is a carrier board for Stamp9G20, with additional peripherals
for a building automation system
Signed-off-by: Peter Gsellmann <pgsellmann@portner-elektronik.at>
[nicolas.ferre@atmel.com: remove machine_desc.io_pg_offst and .phys_io]
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
diff --git a/arch/arm/mach-at91/board-pcontrol-g20.c b/arch/arm/mach-at91/board-pcontrol-g20.c
new file mode 100644
index 0000000..bba5a56
--- /dev/null
+++ b/arch/arm/mach-at91/board-pcontrol-g20.c
@@ -0,0 +1,322 @@
+/*
+ * Copyright (C) 2010 Christian Glindkamp <christian.glindkamp@taskit.de>
+ * taskit GmbH
+ *
+ * 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
+ */
+/*
+ * copied and adjusted from board-stamp9g20.c
+ * by Peter Gsellmann <pgsellmann@portner-elektronik.at>
+ */
+
+#include <linux/mm.h>
+#include <linux/platform_device.h>
+#include <linux/gpio.h>
+#include <linux/w1-gpio.h>
+
+#include <asm/mach-types.h>
+#include <asm/mach/arch.h>
+
+#include <mach/board.h>
+#include <mach/at91sam9_smc.h>
+
+#include "sam9_smc.h"
+#include "generic.h"
+
+
+static void __init pcontrol_g20_map_io(void)
+{
+ /* Initialize processor: 18.432 MHz crystal */
+ at91sam9260_initialize(18432000);
+
+ /* DGBU on ttyS0. (Rx, Tx) only TTL -> JTAG connector X7 17,19 ) */
+ at91_register_uart(0, 0, 0);
+
+ /* USART0 on ttyS1. (Rx, Tx, CTS, RTS) piggyback A2 */
+ at91_register_uart(AT91SAM9260_ID_US0, 1, ATMEL_UART_CTS
+ | ATMEL_UART_RTS);
+
+ /* USART1 on ttyS2. (Rx, Tx, CTS, RTS) isolated RS485 X5 */
+ at91_register_uart(AT91SAM9260_ID_US1, 2, ATMEL_UART_CTS
+ | ATMEL_UART_RTS);
+
+ /* USART2 on ttyS3. (Rx, Tx) 9bit-Bus Multidrop-mode X4 */
+ at91_register_uart(AT91SAM9260_ID_US4, 3, 0);
+
+ /* set serial console to ttyS0 (ie, DBGU) */
+ at91_set_serial_console(0);
+}
+
+
+static void __init init_irq(void)
+{
+ at91sam9260_init_interrupts(NULL);
+}
+
+
+/*
+ * NAND flash 512MiB 1,8V 8-bit, sector size 128 KiB
+ */
+static struct atmel_nand_data __initdata nand_data = {
+ .ale = 21,
+ .cle = 22,
+ .rdy_pin = AT91_PIN_PC13,
+ .enable_pin = AT91_PIN_PC14,
+};
+
+/*
+ * Bus timings; unit = 7.57ns
+ */
+static struct sam9_smc_config __initdata nand_smc_config = {
+ .ncs_read_setup = 0,
+ .nrd_setup = 2,
+ .ncs_write_setup = 0,
+ .nwe_setup = 2,
+
+ .ncs_read_pulse = 4,
+ .nrd_pulse = 4,
+ .ncs_write_pulse = 4,
+ .nwe_pulse = 4,
+
+ .read_cycle = 7,
+ .write_cycle = 7,
+
+ .mode = AT91_SMC_READMODE | AT91_SMC_WRITEMODE
+ | AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_DBW_8,
+ .tdf_cycles = 3,
+};
+
+static struct sam9_smc_config __initdata pcontrol_smc_config[2] = { {
+ .ncs_read_setup = 16,
+ .nrd_setup = 18,
+ .ncs_write_setup = 16,
+ .nwe_setup = 18,
+
+ .ncs_read_pulse = 63,
+ .nrd_pulse = 55,
+ .ncs_write_pulse = 63,
+ .nwe_pulse = 55,
+
+ .read_cycle = 127,
+ .write_cycle = 127,
+
+ .mode = AT91_SMC_READMODE | AT91_SMC_WRITEMODE
+ | AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_BAT_SELECT
+ | AT91_SMC_DBW_8 | AT91_SMC_PS_4
+ | AT91_SMC_TDFMODE,
+ .tdf_cycles = 3,
+}, {
+ .ncs_read_setup = 0,
+ .nrd_setup = 0,
+ .ncs_write_setup = 0,
+ .nwe_setup = 1,
+
+ .ncs_read_pulse = 8,
+ .nrd_pulse = 8,
+ .ncs_write_pulse = 5,
+ .nwe_pulse = 4,
+
+ .read_cycle = 8,
+ .write_cycle = 7,
+
+ .mode = AT91_SMC_READMODE | AT91_SMC_WRITEMODE
+ | AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_BAT_SELECT
+ | AT91_SMC_DBW_16 | AT91_SMC_PS_8
+ | AT91_SMC_TDFMODE,
+ .tdf_cycles = 1,
+} };
+
+static void __init add_device_nand(void)
+{
+ /* configure chip-select 3 (NAND) */
+ sam9_smc_configure(3, &nand_smc_config);
+ at91_add_device_nand(&nand_data);
+}
+
+
+static void __init add_device_pcontrol(void)
+{
+ /* configure chip-select 4 (IO compatible to 8051 X4 ) */
+ sam9_smc_configure(4, &pcontrol_smc_config[0]);
+ /* configure chip-select 7 (FerroRAM 256KiBx16bit MR2A16A D4 ) */
+ sam9_smc_configure(7, &pcontrol_smc_config[1]);
+}
+
+
+/*
+ * MCI (SD/MMC)
+ * det_pin, wp_pin and vcc_pin are not connected
+ */
+#if defined(CONFIG_MMC_ATMELMCI) || defined(CONFIG_MMC_ATMELMCI_MODULE)
+static struct mci_platform_data __initdata mmc_data = {
+ .slot[0] = {
+ .bus_width = 4,
+ },
+};
+#else
+static struct at91_mmc_data __initdata mmc_data = {
+ .wire4 = 1,
+};
+#endif
+
+
+/*
+ * USB Host port
+ */
+static struct at91_usbh_data __initdata usbh_data = {
+ .ports = 2,
+};
+
+
+/*
+ * USB Device port
+ */
+static struct at91_udc_data __initdata pcontrol_g20_udc_data = {
+ .vbus_pin = AT91_PIN_PA22, /* Detect +5V bus voltage */
+ .pullup_pin = AT91_PIN_PA4, /* K-state, active low */
+};
+
+
+/*
+ * MACB Ethernet device
+ */
+static struct at91_eth_data __initdata macb_data = {
+ .phy_irq_pin = AT91_PIN_PA28,
+ .is_rmii = 1,
+};
+
+
+/*
+ * I2C devices: eeprom and phy/switch
+ */
+static struct i2c_board_info __initdata pcontrol_g20_i2c_devices[] = {
+{ /* D7 address width=2, 8KiB */
+ I2C_BOARD_INFO("24c64", 0x50)
+}, { /* D8 address width=1, 1 byte has 32 bits! */
+ I2C_BOARD_INFO("lan9303", 0x0a)
+}, };
+
+
+/*
+ * LEDs
+ */
+static struct gpio_led pcontrol_g20_leds[] = {
+ {
+ .name = "LED1", /* red H5 */
+ .gpio = AT91_PIN_PB18,
+ .active_low = 1,
+ .default_trigger = "none", /* supervisor */
+ }, {
+ .name = "LED2", /* yellow H7 */
+ .gpio = AT91_PIN_PB19,
+ .active_low = 1,
+ .default_trigger = "mmc0", /* SD-card activity */
+ }, {
+ .name = "LED3", /* green H2 */
+ .gpio = AT91_PIN_PB20,
+ .active_low = 1,
+ .default_trigger = "heartbeat", /* blinky */
+ }, {
+ .name = "LED4", /* red H3 */
+ .gpio = AT91_PIN_PC6,
+ .active_low = 1,
+ .default_trigger = "none", /* connection lost */
+ }, {
+ .name = "LED5", /* yellow H6 */
+ .gpio = AT91_PIN_PC7,
+ .active_low = 1,
+ .default_trigger = "none", /* unsent data */
+ }, {
+ .name = "LED6", /* green H1 */
+ .gpio = AT91_PIN_PC9,
+ .active_low = 1,
+ .default_trigger = "none", /* snafu */
+ }
+};
+
+
+/*
+ * SPI devices
+ */
+static struct spi_board_info pcontrol_g20_spi_devices[] = {
+ {
+ .modalias = "spidev", /* HMI port X4 */
+ .chip_select = 1,
+ .max_speed_hz = 50 * 1000 * 1000,
+ .bus_num = 0,
+ }, {
+ .modalias = "spidev", /* piggyback A2 */
+ .chip_select = 0,
+ .max_speed_hz = 50 * 1000 * 1000,
+ .bus_num = 1,
+ },
+};
+
+
+/*
+ * Dallas 1-Wire DS2431
+ */
+static struct w1_gpio_platform_data w1_gpio_pdata = {
+ .pin = AT91_PIN_PA29,
+ .is_open_drain = 1,
+};
+
+static struct platform_device w1_device = {
+ .name = "w1-gpio",
+ .id = -1,
+ .dev.platform_data = &w1_gpio_pdata,
+};
+
+static void add_wire1(void)
+{
+ at91_set_GPIO_periph(w1_gpio_pdata.pin, 1);
+ at91_set_multi_drive(w1_gpio_pdata.pin, 1);
+ platform_device_register(&w1_device);
+}
+
+
+static void __init pcontrol_g20_board_init(void)
+{
+ at91_add_device_serial();
+ add_device_nand();
+#if defined(CONFIG_MMC_ATMELMCI) || defined(CONFIG_MMC_ATMELMCI_MODULE)
+ at91_add_device_mci(0, &mmc_data);
+#else
+ at91_add_device_mmc(0, &mmc_data);
+#endif
+ at91_add_device_usbh(&usbh_data);
+ at91_add_device_eth(&macb_data);
+ at91_add_device_i2c(pcontrol_g20_i2c_devices,
+ ARRAY_SIZE(pcontrol_g20_i2c_devices));
+ add_wire1();
+ add_device_pcontrol();
+ at91_add_device_spi(pcontrol_g20_spi_devices,
+ ARRAY_SIZE(pcontrol_g20_spi_devices));
+ at91_add_device_udc(&pcontrol_g20_udc_data);
+ at91_gpio_leds(pcontrol_g20_leds,
+ ARRAY_SIZE(pcontrol_g20_leds));
+ /* piggyback A2 */
+ at91_set_gpio_output(AT91_PIN_PB31, 1);
+}
+
+
+MACHINE_START(PCONTROL_G20, "PControl G20")
+ /* Maintainer: pgsellmann@portner-elektronik.at */
+ .boot_params = AT91_SDRAM_BASE + 0x100,
+ .timer = &at91sam926x_timer,
+ .map_io = pcontrol_g20_map_io,
+ .init_irq = init_irq,
+ .init_machine = pcontrol_g20_board_init,
+MACHINE_END