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    Subject[PATCH v2] mach-at91: Support for gms board added
    Date
    * The gms is a board from GeoSIG Ltd company.
    It is based on the Stamp9G20 module from Taskit company.
    * This is a second version of the patch with adjustments according
    to comments from Ryan Mallon.
    * This patch made for Linux 2.6.37-rc5.

    Signed-off-by: Igor Plyatov <plyatov@gmail.com>
    ---
    arch/arm/configs/stamp9g20gms_defconfig | 147 +++++++
    arch/arm/mach-at91/Kconfig | 6 +
    arch/arm/mach-at91/Makefile | 1 +
    arch/arm/mach-at91/board-stamp9g20gms.c | 698 +++++++++++++++++++++++++++++++
    arch/arm/mach-at91/include/mach/gms.h | 33 ++
    5 files changed, 885 insertions(+), 0 deletions(-)
    create mode 100644 arch/arm/configs/stamp9g20gms_defconfig
    create mode 100644 arch/arm/mach-at91/board-stamp9g20gms.c
    create mode 100644 arch/arm/mach-at91/include/mach/gms.h

    diff --git a/arch/arm/configs/stamp9g20gms_defconfig b/arch/arm/configs/stamp9g20gms_defconfig
    new file mode 100644
    index 0000000..c44057f
    --- /dev/null
    +++ b/arch/arm/configs/stamp9g20gms_defconfig
    @@ -0,0 +1,147 @@
    +CONFIG_EXPERIMENTAL=y
    +CONFIG_SYSVIPC=y
    +CONFIG_LOG_BUF_SHIFT=14
    +CONFIG_BLK_DEV_INITRD=y
    +CONFIG_SLAB=y
    +CONFIG_MODULES=y
    +CONFIG_MODULE_UNLOAD=y
    +CONFIG_ARCH_AT91=y
    +CONFIG_ARCH_AT91SAM9G20=y
    +CONFIG_MACH_STAMP9G20GMS=y
    +CONFIG_AT91_PROGRAMMABLE_CLOCKS=y
    +CONFIG_AT91_SLOW_CLOCK=y
    +CONFIG_NO_HZ=y
    +CONFIG_HIGH_RES_TIMERS=y
    +CONFIG_PREEMPT=y
    +CONFIG_AEABI=y
    +CONFIG_ZBOOT_ROM_TEXT=0x0
    +CONFIG_ZBOOT_ROM_BSS=0x0
    +CONFIG_CMDLINE="mem=64M console=ttyS0,115200 initrd=0x21100000,3145728 root=/dev/ram0 rw"
    +CONFIG_KEXEC=y
    +CONFIG_CPU_IDLE=y
    +CONFIG_PM=y
    +CONFIG_NET=y
    +CONFIG_PACKET=y
    +CONFIG_UNIX=y
    +CONFIG_INET=y
    +CONFIG_NETFILTER=y
    +CONFIG_NETFILTER_NETLINK_LOG=m
    +CONFIG_NF_CONNTRACK=m
    +CONFIG_NF_CT_PROTO_SCTP=m
    +CONFIG_NF_CT_PROTO_UDPLITE=m
    +CONFIG_NF_CONNTRACK_FTP=m
    +CONFIG_NF_CONNTRACK_IRC=m
    +CONFIG_NF_CONNTRACK_SIP=m
    +CONFIG_NF_CT_NETLINK=m
    +CONFIG_NETFILTER_XT_MARK=m
    +CONFIG_NETFILTER_XT_CONNMARK=m
    +CONFIG_NETFILTER_XT_MATCH_STATE=m
    +CONFIG_NF_CONNTRACK_IPV4=m
    +CONFIG_IP_NF_IPTABLES=m
    +CONFIG_IP_NF_MATCH_ADDRTYPE=m
    +CONFIG_IP_NF_MATCH_AH=m
    +CONFIG_IP_NF_MATCH_ECN=m
    +CONFIG_IP_NF_MATCH_TTL=m
    +CONFIG_IP_NF_FILTER=m
    +CONFIG_IP_NF_TARGET_REJECT=m
    +CONFIG_IP_NF_TARGET_LOG=m
    +CONFIG_IP_NF_TARGET_ULOG=m
    +CONFIG_NF_NAT=m
    +CONFIG_IP_NF_TARGET_MASQUERADE=m
    +CONFIG_IP_NF_TARGET_NETMAP=m
    +CONFIG_IP_NF_TARGET_REDIRECT=m
    +CONFIG_NF_NAT_SNMP_BASIC=m
    +CONFIG_IP_NF_MANGLE=m
    +CONFIG_IP_NF_TARGET_CLUSTERIP=m
    +CONFIG_IP_NF_TARGET_ECN=m
    +CONFIG_IP_NF_TARGET_TTL=m
    +CONFIG_IP_NF_RAW=m
    +CONFIG_IP_NF_ARPTABLES=m
    +CONFIG_IP_NF_ARPFILTER=m
    +CONFIG_IP_NF_ARP_MANGLE=m
    +CONFIG_CFG80211=y
    +CONFIG_LIB80211=y
    +CONFIG_MAC80211=y
    +CONFIG_MAC80211_LEDS=y
    +CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
    +CONFIG_MTD=y
    +CONFIG_MTD_CONCAT=y
    +CONFIG_MTD_PARTITIONS=y
    +CONFIG_MTD_CMDLINE_PARTS=y
    +CONFIG_MTD_CHAR=y
    +CONFIG_MTD_BLOCK=y
    +CONFIG_MTD_DATAFLASH=y
    +CONFIG_MTD_NAND=y
    +CONFIG_MTD_NAND_ATMEL=y
    +CONFIG_MTD_UBI=y
    +CONFIG_BLK_DEV_LOOP=y
    +CONFIG_BLK_DEV_RAM=y
    +CONFIG_BLK_DEV_RAM_SIZE=8192
    +CONFIG_MISC_DEVICES=y
    +CONFIG_EEPROM_AT24=y
    +CONFIG_BLK_DEV_SD=y
    +CONFIG_SCSI_MULTI_LUN=y
    +CONFIG_ATA=y
    +CONFIG_PATA_AT91=y
    +CONFIG_NETDEVICES=y
    +CONFIG_NET_ETHERNET=y
    +CONFIG_MACB=y
    +CONFIG_RTL8187=m
    +CONFIG_RT2X00=y
    +CONFIG_RT2500USB=y
    +CONFIG_RT73USB=y
    +CONFIG_RT2800USB=y
    +CONFIG_PPP=y
    +CONFIG_PPP_ASYNC=y
    +CONFIG_PPP_DEFLATE=y
    +CONFIG_PPP_BSDCOMP=y
    +CONFIG_PPP_MPPE=y
    +CONFIG_INPUT_MOUSEDEV_SCREEN_X=320
    +CONFIG_INPUT_MOUSEDEV_SCREEN_Y=240
    +CONFIG_INPUT_EVDEV=y
    +CONFIG_KEYBOARD_GPIO=y
    +CONFIG_SERIAL_ATMEL=y
    +CONFIG_SERIAL_ATMEL_CONSOLE=y
    +CONFIG_I2C=y
    +CONFIG_I2C_CHARDEV=y
    +CONFIG_I2C_GPIO=y
    +CONFIG_SPI=y
    +CONFIG_SPI_ATMEL=y
    +CONFIG_SPI_SPIDEV=y
    +CONFIG_GPIO_SYSFS=y
    +CONFIG_GPIO_PCF857X=y
    +CONFIG_W1=y
    +CONFIG_W1_MASTER_GPIO=y
    +CONFIG_W1_SLAVE_DS2431=y
    +CONFIG_USB=y
    +CONFIG_USB_DEVICEFS=y
    +CONFIG_USB_OHCI_HCD=y
    +CONFIG_USB_ACM=y
    +CONFIG_USB_STORAGE=y
    +CONFIG_USB_GADGET=y
    +CONFIG_USB_ETH=y
    +CONFIG_MMC=y
    +CONFIG_MMC_ATMELMCI=y
    +CONFIG_NEW_LEDS=y
    +CONFIG_LEDS_CLASS=y
    +CONFIG_LEDS_GPIO=y
    +CONFIG_LEDS_TRIGGER_TIMER=y
    +CONFIG_LEDS_TRIGGER_HEARTBEAT=y
    +CONFIG_LEDS_TRIGGER_DEFAULT_ON=y
    +CONFIG_RTC_CLASS=y
    +CONFIG_RTC_DRV_AT91SAM9=y
    +CONFIG_EXT2_FS=y
    +CONFIG_EXT3_FS=y
    +CONFIG_EXT4_FS=y
    +CONFIG_VFAT_FS=y
    +CONFIG_TMPFS=y
    +CONFIG_JFFS2_FS=y
    +CONFIG_JFFS2_SUMMARY=y
    +CONFIG_UBIFS_FS=y
    +CONFIG_NFS_FS=y
    +CONFIG_NFS_V3=y
    +CONFIG_NLS_CODEPAGE_437=y
    +CONFIG_NLS_CODEPAGE_850=y
    +CONFIG_NLS_ISO8859_1=y
    +CONFIG_NLS_ISO8859_15=y
    +CONFIG_NLS_UTF8=y
    diff --git a/arch/arm/mach-at91/Kconfig b/arch/arm/mach-at91/Kconfig
    index c015b68..6bc9372 100644
    --- a/arch/arm/mach-at91/Kconfig
    +++ b/arch/arm/mach-at91/Kconfig
    @@ -375,6 +375,12 @@ config MACH_STAMP9G20
    evaluation board.
    <http://www.taskit.de/en/>

    +config MACH_STAMP9G20GMS
    + bool "GeoSIG Stamp9G20 GMS"
    + help
    + Select this if you are using taskit's Stamp9G20 with GeoSIG's GMS.
    + <http://www.geosig.com>
    +
    config MACH_PCONTROL_G20
    bool "PControl G20 CPU module"
    help
    diff --git a/arch/arm/mach-at91/Makefile b/arch/arm/mach-at91/Makefile
    index 62d686f..6eeeba7 100644
    --- a/arch/arm/mach-at91/Makefile
    +++ b/arch/arm/mach-at91/Makefile
    @@ -64,6 +64,7 @@ obj-$(CONFIG_MACH_AT91SAM9RLEK) += board-sam9rlek.o
    obj-$(CONFIG_MACH_AT91SAM9G20EK) += board-sam9g20ek.o
    obj-$(CONFIG_MACH_CPU9G20) += board-cpu9krea.o
    obj-$(CONFIG_MACH_STAMP9G20) += board-stamp9g20.o
    +obj-$(CONFIG_MACH_STAMP9G20GMS) += board-stamp9g20gms.o
    obj-$(CONFIG_MACH_PORTUXG20) += board-stamp9g20.o
    obj-$(CONFIG_MACH_PCONTROL_G20) += board-pcontrol-g20.o

    diff --git a/arch/arm/mach-at91/board-stamp9g20gms.c b/arch/arm/mach-at91/board-stamp9g20gms.c
    new file mode 100644
    index 0000000..df5a591
    --- /dev/null
    +++ b/arch/arm/mach-at91/board-stamp9g20gms.c
    @@ -0,0 +1,698 @@
    +/*
    + * Copyright (C) 2010 Christian Glindkamp <christian.glindkamp@taskit.de>
    + * taskit GmbH
    + * 2010 Igor Plyatov <plyatov@gmail.com>
    + * GeoSIG Ltd
    + *
    + * 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 <linux/platform_device.h>
    +#include <linux/gpio.h>
    +#include <linux/w1-gpio.h>
    +#include <linux/i2c/pcf857x.h>
    +#include <linux/gpio_keys.h>
    +#include <linux/input.h>
    +
    +#include <asm/mach-types.h>
    +#include <asm/mach/arch.h>
    +
    +#include <mach/board.h>
    +#include <mach/at91sam9_smc.h>
    +#include <mach/gms.h>
    +
    +#include "sam9_smc.h"
    +#include "generic.h"
    +
    +static void __init stamp9g20gms_map_io(void)
    +{
    + /* Initialize processor: 18.432 MHz crystal */
    + at91sam9260_initialize(18432000);
    +
    + /* DGBU on ttyS0. (Rx & Tx only) */
    + at91_register_uart(0, 0, 0);
    +
    + /*
    + * USART0 on ttyS1 (Rx, Tx, CTS, RTS, DTR, DSR, DCD, RI).
    + * Used for Internal Analog Modem.
    + */
    + at91_register_uart(AT91SAM9260_ID_US0, 1,
    + ATMEL_UART_CTS | ATMEL_UART_RTS
    + | ATMEL_UART_DTR | ATMEL_UART_DSR
    + | ATMEL_UART_DCD | ATMEL_UART_RI);
    + /*
    + * USART1 on ttyS2 (Rx, Tx, CTS, RTS).
    + * Used for GPS or WiFi or Data stream.
    + */
    + at91_register_uart(AT91SAM9260_ID_US1, 2,
    + ATMEL_UART_CTS | ATMEL_UART_RTS);
    + /*
    + * USART2 on ttyS3 (Rx, Tx, CTS, RTS).
    + * Used for External Modem.
    + */
    + at91_register_uart(AT91SAM9260_ID_US2, 3,
    + ATMEL_UART_CTS | ATMEL_UART_RTS);
    + /*
    + * USART3 on ttyS4 (Rx, Tx, RTS).
    + * Used for RS-485.
    + */
    + at91_register_uart(AT91SAM9260_ID_US3, 4, ATMEL_UART_RTS);
    +
    + /*
    + * USART4 on ttyS5 (Rx, Tx).
    + * Used for TRX433 Radio Module.
    + */
    + at91_register_uart(AT91SAM9260_ID_US4, 5, 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
    + */
    +static struct atmel_nand_data __initdata nand_data = {
    + .ale = 21,
    + .cle = 22,
    + .rdy_pin = AT91_PIN_PC13,
    + .enable_pin = AT91_PIN_PC14,
    + .bus_width_16 = 0,
    +};
    +
    +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 void __init add_device_nand(void)
    +{
    + /* configure chip-select 3 (NAND) */
    + sam9_smc_configure(3, &nand_smc_config);
    +
    + at91_add_device_nand(&nand_data);
    +}
    +
    +/*
    + * 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 = {
    + .slot_b = 0,
    + .wire4 = 1,
    +};
    +#endif
    +
    +/*
    + * Two USB Host ports
    + */
    +static struct at91_usbh_data __initdata usbh_data = {
    + .ports = 2,
    +};
    +
    +/*
    + * USB Device port
    + */
    +static struct at91_udc_data __initdata stamp9g20gms_udc_data = {
    + .vbus_pin = AT91_PIN_PA22,
    + .pullup_pin = 0, /* pull-up driven by UDC */
    +};
    +
    +/*
    + * MACB Ethernet device
    + */
    +static struct at91_eth_data __initdata macb_data = {
    + .phy_irq_pin = AT91_PIN_PA28,
    + .is_rmii = 1,
    +};
    +
    +/*
    + * LEDs and GPOs
    + */
    +#if defined(CONFIG_LEDS_GPIO) || defined(CONFIG_LEDS_GPIO_MODULE)
    +static struct gpio_led stamp9g20gms_gpio_leds[] = {
    + {
    + .name = "gpo:spi1reset",
    + .gpio = AT91_PIN_PC1,
    + .active_low = 0,
    + .default_trigger = "none",
    + .default_state = LEDS_GPIO_DEFSTATE_OFF,
    + },
    + {
    + .name = "gpo:trig_net_out",
    + .gpio = AT91_PIN_PB20,
    + .active_low = 0,
    + .default_trigger = "none",
    + .default_state = LEDS_GPIO_DEFSTATE_OFF,
    + },
    + {
    + .name = "gpo:trig_net_dir",
    + .gpio = AT91_PIN_PB19,
    + .active_low = 0,
    + .default_trigger = "none",
    + .default_state = LEDS_GPIO_DEFSTATE_OFF,
    + },
    + {
    + .name = "gpo:charge_dis",
    + .gpio = AT91_PIN_PC2,
    + .active_low = 0,
    + .default_trigger = "none",
    + .default_state = LEDS_GPIO_DEFSTATE_OFF,
    + },
    + {
    + .name = "led:event",
    + .gpio = AT91_PIN_PB17,
    + .active_low = 1,
    + .default_trigger = "none",
    + .default_state = LEDS_GPIO_DEFSTATE_OFF,
    + },
    + {
    + .name = "led:lan",
    + .gpio = AT91_PIN_PB18,
    + .active_low = 1,
    + .default_trigger = "none",
    + .default_state = LEDS_GPIO_DEFSTATE_OFF,
    + },
    + {
    + .name = "led:error",
    + .gpio = AT91_PIN_PB16,
    + .active_low = 1,
    + .default_trigger = "none",
    + .default_state = LEDS_GPIO_DEFSTATE_ON,
    + }
    +};
    +
    +static struct gpio_led_platform_data stamp9g20gms_gpio_led_info = {
    + .leds = stamp9g20gms_gpio_leds,
    + .num_leds = ARRAY_SIZE(stamp9g20gms_gpio_leds),
    +};
    +
    +static struct platform_device stamp9g20gms_leds = {
    + .name = "leds-gpio",
    + .id = 0,
    + .dev = {
    + .platform_data = &stamp9g20gms_gpio_led_info,
    + }
    +};
    +
    +static void __init stamp9g20gms_leds_init(void)
    +{
    + platform_device_register(&stamp9g20gms_leds);
    +}
    +#else
    +static inline void stamp9g20gms_leds_init(void) {}
    +#endif
    +
    +/* PCF8574 0x20 GPIO - U1 on the GS_IA18-CB_V3 board */
    +#if (defined(CONFIG_LEDS_GPIO) || defined(CONFIG_LEDS_GPIO_MODULE)) && \
    + (defined(CONFIG_GPIO_PCF857X) || defined(CONFIG_GPIO_PCF857X_MODULE))
    +static struct gpio_led stamp9g20gms_pcf_gpio_leds1[] = {
    + { /* bit 0 */
    + .name = "gpo:hdc_power",
    + .gpio = PCF_GPIO_HDC_POWER,
    + .active_low = 0,
    + .default_trigger = "none",
    + .default_state = LEDS_GPIO_DEFSTATE_OFF,
    + },
    + { /* bit 1 */
    + .name = "gpo:wifi_setup",
    + .gpio = PCF_GPIO_WIFI_SETUP,
    + .active_low = 1,
    + .default_trigger = "none",
    + .default_state = LEDS_GPIO_DEFSTATE_OFF,
    + },
    + { /* bit 2 */
    + .name = "gpo:wifi_enable",
    + .gpio = PCF_GPIO_WIFI_ENABLE,
    + .active_low = 1,
    + .default_trigger = "none",
    + .default_state = LEDS_GPIO_DEFSTATE_OFF,
    + },
    + { /* bit 3 */
    + .name = "gpo:wifi_reset",
    + .gpio = PCF_GPIO_WIFI_RESET,
    + .active_low = 1,
    + .default_trigger = "none",
    + .default_state = LEDS_GPIO_DEFSTATE_ON,
    + },
    + /* bit 4 used as GPI */
    + { /* bit 5 */
    + .name = "gpo:gps_setup",
    + .gpio = PCF_GPIO_GPS_SETUP,
    + .active_low = 1,
    + .default_trigger = "none",
    + .default_state = LEDS_GPIO_DEFSTATE_OFF,
    + },
    + { /* bit 6 */
    + .name = "gpo:gps_standby",
    + .gpio = PCF_GPIO_GPS_STANDBY,
    + .active_low = 0,
    + .default_trigger = "none",
    + .default_state = LEDS_GPIO_DEFSTATE_ON,
    + },
    + { /* bit 7 */
    + .name = "gpo:gps_power",
    + .gpio = PCF_GPIO_GPS_POWER,
    + .active_low = 0,
    + .default_trigger = "none",
    + .default_state = LEDS_GPIO_DEFSTATE_OFF,
    + }
    +};
    +
    +static struct gpio_led_platform_data stamp9g20gms_pcf_gpio_led_info1 = {
    + .leds = stamp9g20gms_pcf_gpio_leds1,
    + .num_leds = ARRAY_SIZE(stamp9g20gms_pcf_gpio_leds1),
    +};
    +
    +static struct platform_device stamp9g20gms_pcf_leds1 = {
    + .name = "leds-gpio", /* GS_IA18-CB_board */
    + .id = 1,
    + .dev = {
    + .platform_data = &stamp9g20gms_pcf_gpio_led_info1,
    + }
    +};
    +
    +/* PCF8574 0x22 GPIO - U1 on the GS_2G_OPT1-A_V0 board (Alarm) */
    +static struct gpio_led stamp9g20gms_pcf_gpio_leds2[] = {
    + { /* bit 0 */
    + .name = "gpo:alarm_1",
    + .gpio = PCF_GPIO_ALARM1,
    + .active_low = 1,
    + .default_trigger = "none",
    + .default_state = LEDS_GPIO_DEFSTATE_OFF,
    + },
    + { /* bit 1 */
    + .name = "gpo:alarm_2",
    + .gpio = PCF_GPIO_ALARM2,
    + .active_low = 1,
    + .default_trigger = "none",
    + .default_state = LEDS_GPIO_DEFSTATE_OFF,
    + },
    + { /* bit 2 */
    + .name = "gpo:alarm_3",
    + .gpio = PCF_GPIO_ALARM3,
    + .active_low = 1,
    + .default_trigger = "none",
    + .default_state = LEDS_GPIO_DEFSTATE_OFF,
    + },
    + { /* bit 3 */
    + .name = "gpo:alarm_4",
    + .gpio = PCF_GPIO_ALARM4,
    + .active_low = 1,
    + .default_trigger = "none",
    + .default_state = LEDS_GPIO_DEFSTATE_OFF,
    + },
    + /* bits 4, 5, 6 not used */
    + { /* bit 7 */
    + .name = "gpo:alarm_v_relay_on",
    + .gpio = PCF_GPIO_ALARM_V_RELAY_ON,
    + .active_low = 0,
    + .default_trigger = "none",
    + .default_state = LEDS_GPIO_DEFSTATE_OFF,
    + },
    +};
    +
    +static struct gpio_led_platform_data stamp9g20gms_pcf_gpio_led_info2 = {
    + .leds = stamp9g20gms_pcf_gpio_leds2,
    + .num_leds = ARRAY_SIZE(stamp9g20gms_pcf_gpio_leds2),
    +};
    +
    +static struct platform_device stamp9g20gms_pcf_leds2 = {
    + .name = "leds-gpio",
    + .id = 2,
    + .dev = {
    + .platform_data = &stamp9g20gms_pcf_gpio_led_info2,
    + }
    +};
    +
    +/* PCF8574 0x24 GPIO U1 on the GS_2G-OPT23-A_V0 board (Modem) */
    +static struct gpio_led stamp9g20gms_pcf_gpio_leds3[] = {
    + { /* bit 0 */
    + .name = "gpo:modem_power",
    + .gpio = PCF_GPIO_MODEM_POWER,
    + .active_low = 1,
    + .default_trigger = "none",
    + .default_state = LEDS_GPIO_DEFSTATE_OFF,
    + },
    + /* bits 1 and 2 not used */
    + { /* bit 3 */
    + .name = "gpo:modem_reset",
    + .gpio = PCF_GPIO_MODEM_RESET,
    + .active_low = 1,
    + .default_trigger = "none",
    + .default_state = LEDS_GPIO_DEFSTATE_ON,
    + },
    + /* bits 4, 5 and 6 not used */
    + { /* bit 7 */
    + .name = "gpo:trx_reset",
    + .gpio = PCF_GPIO_TRX_RESET,
    + .active_low = 1,
    + .default_trigger = "none",
    + .default_state = LEDS_GPIO_DEFSTATE_ON,
    + }
    +};
    +
    +static struct gpio_led_platform_data stamp9g20gms_pcf_gpio_led_info3 = {
    + .leds = stamp9g20gms_pcf_gpio_leds3,
    + .num_leds = ARRAY_SIZE(stamp9g20gms_pcf_gpio_leds3),
    +};
    +
    +static struct platform_device stamp9g20gms_pcf_leds3 = {
    + .name = "leds-gpio",
    + .id = 3,
    + .dev = {
    + .platform_data = &stamp9g20gms_pcf_gpio_led_info3,
    + }
    +};
    +
    +static void __init stamp9g20gms_pcf_leds_init(void)
    +{
    + platform_device_register(&stamp9g20gms_pcf_leds1);
    + platform_device_register(&stamp9g20gms_pcf_leds2);
    + platform_device_register(&stamp9g20gms_pcf_leds3);
    +}
    +#else
    +static inline void stamp9g20gms_pcf_leds_init(void) {}
    +#endif /* CONFIG_LEDS_GPIO || CONFIG_GPIO_PCF857X */
    +
    +/*
    + * SPI busses.
    + */
    +static struct spi_board_info stamp9g20gms_spi_devices[] = {
    + { /* User accessible spi0, cs0 used for communication with MSP RTC */
    + .modalias = "spidev",
    + .bus_num = 0,
    + .chip_select = 0,
    + .max_speed_hz = 580000,
    + .mode = SPI_MODE_1,
    + },
    + { /* User accessible spi1, cs0 used for communication with int. DSP */
    + .modalias = "spidev",
    + .bus_num = 1,
    + .chip_select = 0,
    + .max_speed_hz = 5600000,
    + .mode = SPI_MODE_0,
    + },
    + { /* User accessible spi1, cs1 used for communication with ext. DSP */
    + .modalias = "spidev",
    + .bus_num = 1,
    + .chip_select = 1,
    + .max_speed_hz = 5600000,
    + .mode = SPI_MODE_0,
    + },
    + { /* User accessible spi1, cs2 used for communication with ext. DSP */
    + .modalias = "spidev",
    + .bus_num = 1,
    + .chip_select = 2,
    + .max_speed_hz = 5600000,
    + .mode = SPI_MODE_0,
    + },
    + { /* User accessible spi1, cs3 used for communication with ext. DSP */
    + .modalias = "spidev",
    + .bus_num = 1,
    + .chip_select = 3,
    + .max_speed_hz = 5600000,
    + .mode = SPI_MODE_0,
    + }
    +};
    +
    +/*
    + * Dallas 1-Wire
    + */
    +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,
    +};
    +
    +void add_w1(void)
    +{
    + at91_set_GPIO_periph(w1_gpio_pdata.pin, 1);
    + at91_set_multi_drive(w1_gpio_pdata.pin, 1);
    + platform_device_register(&w1_device);
    +}
    +
    +/*
    + * GPI Buttons
    + */
    +#if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
    +static struct gpio_keys_button stamp9g20gms_buttons[] = {
    + {
    + .gpio = GPIO_TRIG_NET_IN,
    + .code = BTN_1,
    + .desc = "TRIG_NET_IN",
    + .type = EV_KEY,
    + .active_low = 0,
    + .wakeup = 1,
    + },
    + { /* SW80 on the GS_IA18_S-MN board*/
    + .gpio = GPIO_CARD_UNMOUNT_0,
    + .code = BTN_2,
    + .desc = "Card umount 0",
    + .type = EV_KEY,
    + .active_low = 1,
    + .wakeup = 1,
    + },
    + { /* SW79 on the GS_IA18_S-MN board*/
    + .gpio = GPIO_CARD_UNMOUNT_1,
    + .code = BTN_3,
    + .desc = "Card umount 1",
    + .type = EV_KEY,
    + .active_low = 1,
    + .wakeup = 1,
    + },
    + { /* SW280 on the GS_IA18-CB board*/
    + .gpio = GPIO_KEY_POWER,
    + .code = KEY_POWER,
    + .desc = "Power Off Button",
    + .type = EV_KEY,
    + .active_low = 0,
    + .wakeup = 1,
    + }
    +};
    +
    +static struct gpio_keys_platform_data stamp9g20gms_button_data = {
    + .buttons = stamp9g20gms_buttons,
    + .nbuttons = ARRAY_SIZE(stamp9g20gms_buttons),
    +};
    +
    +static struct platform_device stamp9g20gms_button_device = {
    + .name = "gpio-keys",
    + .id = -1,
    + .num_resources = 0,
    + .dev = {
    + .platform_data = &stamp9g20gms_button_data,
    + }
    +};
    +
    +static void __init stamp9g20gms_add_device_buttons(void)
    +{
    + at91_set_gpio_input(GPIO_TRIG_NET_IN, 1);
    + at91_set_deglitch(GPIO_TRIG_NET_IN, 1);
    + at91_set_gpio_input(GPIO_CARD_UNMOUNT_0, 1);
    + at91_set_deglitch(GPIO_CARD_UNMOUNT_0, 1);
    + at91_set_gpio_input(GPIO_CARD_UNMOUNT_1, 1);
    + at91_set_deglitch(GPIO_CARD_UNMOUNT_1, 1);
    + at91_set_gpio_input(GPIO_KEY_POWER, 0);
    + at91_set_deglitch(GPIO_KEY_POWER, 1);
    +
    + platform_device_register(&stamp9g20gms_button_device);
    +}
    +#else
    +static void __init stamp9g20gms_add_device_buttons(void) {}
    +#endif
    +
    +/*
    + * I2C
    + */
    +static int pcf8574x_0x20_setup(struct i2c_client *client, int gpio,
    + unsigned int ngpio, void *context)
    +{
    + int status;
    +
    + status = gpio_request(gpio + PCF_GPIO_ETH_DETECT, "eth_det");
    + if (status < 0) {
    + pr_err("error: can't request GPIO%d\n",
    + gpio + PCF_GPIO_ETH_DETECT);
    + return status;
    + }
    + status = gpio_direction_input(gpio + PCF_GPIO_ETH_DETECT);
    + if (status < 0) {
    + pr_err("error: can't setup GPIO%d as input\n",
    + gpio + PCF_GPIO_ETH_DETECT);
    + return status;
    + }
    + status = gpio_export(gpio + PCF_GPIO_ETH_DETECT, false);
    + if (status < 0) {
    + pr_err("error: can't export GPIO%d\n",
    + gpio + PCF_GPIO_ETH_DETECT);
    + return status;
    + }
    + status = gpio_sysfs_set_active_low(gpio + PCF_GPIO_ETH_DETECT, 1);
    + if (status < 0) {
    + pr_err("error: gpio_sysfs_set active_low(GPIO%d, 1)\n",
    + gpio + PCF_GPIO_ETH_DETECT);
    + return status;
    + }
    +
    + return 0;
    +}
    +
    +static int pcf8574x_0x20_teardown(struct i2c_client *client, int gpio,
    + unsigned ngpio, void *context)
    +{
    + gpio_free(gpio + 4);
    + return 0;
    +}
    +
    +static struct pcf857x_platform_data stamp9g20_pcf20_pdata = {
    + .gpio_base = GS_IA18_S_PCF_GPIO_BASE0,
    + .n_latch = (1 << 4),
    + .setup = pcf8574x_0x20_setup,
    + .teardown = pcf8574x_0x20_teardown,
    +};
    +
    +static struct pcf857x_platform_data stamp9g20_pcf22_pdata = {
    + .gpio_base = GS_IA18_S_PCF_GPIO_BASE1,
    +};
    +
    +static struct pcf857x_platform_data stamp9g20_pcf24_pdata = {
    + .gpio_base = GS_IA18_S_PCF_GPIO_BASE2,
    +};
    +
    +static struct i2c_board_info __initdata stamp9g20gms_i2c_devices[] = {
    + { /* U1 on the GS_IA18-CB_V3 board */
    + I2C_BOARD_INFO("pcf8574", 0x20),
    + .platform_data = &stamp9g20_pcf20_pdata,
    + },
    + { /* U1 on the GS_2G_OPT1-A_V0 board (Alarm) */
    + I2C_BOARD_INFO("pcf8574", 0x22),
    + .platform_data = &stamp9g20_pcf22_pdata,
    + },
    + { /* U1 on the GS_2G-OPT23-A_V0 board (Modem) */
    + I2C_BOARD_INFO("pcf8574", 0x24),
    + .platform_data = &stamp9g20_pcf24_pdata,
    + },
    + { /* U161 on the GS_IA18_S-MN board */
    + I2C_BOARD_INFO("24c1024", 0x50),
    + },
    + { /* U162 on the GS_IA18_S-MN board */
    + I2C_BOARD_INFO("24c01", 0x53),
    + },
    +};
    +
    +/*
    + * Compact Flash
    + */
    +#if defined(CONFIG_PATA_AT91) || defined(CONFIG_PATA_AT91_MODULE)
    +static struct at91_cf_data __initdata stamp9g20gms_cf1_data = {
    + .irq_pin = AT91_PIN_PA27,
    + .det_pin = AT91_PIN_PB30,
    + .rst_pin = AT91_PIN_PB31,
    + .chipselect = 5,
    + .flags = AT91_CF_TRUE_IDE,
    +};
    +#endif /* CONFIG_PATA_AT91 */
    +
    +/* Power Off by RTC */
    +static void stamp9g20gms_power_off(void)
    +{
    + pr_notice("Power supply will be switched off automatically now or ");
    + pr_notice("after 60 seconds without ArmDAS.\n");
    + at91_set_gpio_output(AT91_PIN_PA25, 1);
    + /* Spin to death... */
    + while (1)
    + ;
    +}
    +
    +static int __init stamp9g20gms_power_off_init(void)
    +{
    + pm_power_off = stamp9g20gms_power_off;
    + return 0;
    +}
    +
    +/* ---------------------------------------------------------------------------*/
    +
    +static void __init generic_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 /* CONFIG_MMC_ATMELMCI */
    + add_w1();
    +}
    +
    +static void __init stamp9g20gms_board_init(void)
    +{
    + generic_board_init();
    + at91_add_device_usbh(&usbh_data);
    + at91_add_device_udc(&stamp9g20gms_udc_data);
    + at91_add_device_eth(&macb_data);
    + stamp9g20gms_leds_init();
    + stamp9g20gms_pcf_leds_init();
    + stamp9g20gms_add_device_buttons();
    + at91_add_device_i2c(stamp9g20gms_i2c_devices,
    + ARRAY_SIZE(stamp9g20gms_i2c_devices));
    +#if defined(CONFIG_PATA_AT91) || defined(CONFIG_PATA_AT91_MODULE)
    + at91_add_device_cf(&stamp9g20gms_cf1_data);
    +#endif /* CONFIG_PATA_AT91 */
    + at91_add_device_spi(stamp9g20gms_spi_devices,
    + ARRAY_SIZE(stamp9g20gms_spi_devices));
    + stamp9g20gms_power_off_init();
    +}
    +
    +MACHINE_START(STAMP9G20, "Stamp9G20 on the GeoSIG GS_IA18_S board")
    + /* Maintainer: GeoSIG Ltd */
    + .boot_params = AT91_SDRAM_BASE + 0x100,
    + .timer = &at91sam926x_timer,
    + .map_io = stamp9g20gms_map_io,
    + .init_irq = init_irq,
    + .init_machine = stamp9g20gms_board_init,
    +MACHINE_END
    diff --git a/arch/arm/mach-at91/include/mach/gms.h b/arch/arm/mach-at91/include/mach/gms.h
    new file mode 100644
    index 0000000..307c194
    --- /dev/null
    +++ b/arch/arm/mach-at91/include/mach/gms.h
    @@ -0,0 +1,33 @@
    +/* Buttons */
    +#define GPIO_TRIG_NET_IN AT91_PIN_PB21
    +#define GPIO_CARD_UNMOUNT_0 AT91_PIN_PB13
    +#define GPIO_CARD_UNMOUNT_1 AT91_PIN_PB12
    +#define GPIO_KEY_POWER AT91_PIN_PA25
    +
    +/* PCF8574 0x20 GPIO - U1 on the GS_IA18-CB_V3 board */
    +#define GS_IA18_S_PCF_GPIO_BASE0 NR_BUILTIN_GPIO
    +#define PCF_GPIO_HDC_POWER (GS_IA18_S_PCF_GPIO_BASE0 + 0)
    +#define PCF_GPIO_WIFI_SETUP (GS_IA18_S_PCF_GPIO_BASE0 + 1)
    +#define PCF_GPIO_WIFI_ENABLE (GS_IA18_S_PCF_GPIO_BASE0 + 2)
    +#define PCF_GPIO_WIFI_RESET (GS_IA18_S_PCF_GPIO_BASE0 + 3)
    +#define PCF_GPIO_ETH_DETECT 4 /* this is a GPI */
    +#define PCF_GPIO_GPS_SETUP (GS_IA18_S_PCF_GPIO_BASE0 + 5)
    +#define PCF_GPIO_GPS_STANDBY (GS_IA18_S_PCF_GPIO_BASE0 + 6)
    +#define PCF_GPIO_GPS_POWER (GS_IA18_S_PCF_GPIO_BASE0 + 7)
    +
    +/* PCF8574 0x22 GPIO - U1 on the GS_2G_OPT1-A_V0 board (Alarm) */
    +#define GS_IA18_S_PCF_GPIO_BASE1 (GS_IA18_S_PCF_GPIO_BASE0 + 8)
    +#define PCF_GPIO_ALARM1 (GS_IA18_S_PCF_GPIO_BASE1 + 0)
    +#define PCF_GPIO_ALARM2 (GS_IA18_S_PCF_GPIO_BASE1 + 1)
    +#define PCF_GPIO_ALARM3 (GS_IA18_S_PCF_GPIO_BASE1 + 2)
    +#define PCF_GPIO_ALARM4 (GS_IA18_S_PCF_GPIO_BASE1 + 3)
    +/* bits 4, 5, 6 not used */
    +#define PCF_GPIO_ALARM_V_RELAY_ON (GS_IA18_S_PCF_GPIO_BASE1 + 7)
    +
    +/* PCF8574 0x24 GPIO U1 on the GS_2G-OPT23-A_V0 board (Modem) */
    +#define GS_IA18_S_PCF_GPIO_BASE2 (GS_IA18_S_PCF_GPIO_BASE1 + 8)
    +#define PCF_GPIO_MODEM_POWER (GS_IA18_S_PCF_GPIO_BASE2 + 0)
    +#define PCF_GPIO_MODEM_RESET (GS_IA18_S_PCF_GPIO_BASE2 + 3)
    +/* bits 1, 2, 4, 5 not used */
    +#define PCF_GPIO_TRX_RESET (GS_IA18_S_PCF_GPIO_BASE2 + 6)
    +/* bit 7 not used */
    --
    1.7.0.4


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