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at91: Refactor Stamp9G20 and PControl G20 board file
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As PControl G20 is a carrier board for the Stamp9G20 SoM, some code can
be shared. Therefore board-stamp9g20.c is refactored to allow reusing the
SoM initialization and board-pcontrol-g20.c is modified to use it.

Signed-off-by: Christian Glindkamp <christian.glindkamp@taskit.de>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
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Christian Glindkamp authored and Nicolas Ferre committed Dec 17, 2010
1 parent 8251544 commit c20b4dd
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Showing 4 changed files with 54 additions and 135 deletions.
2 changes: 1 addition & 1 deletion arch/arm/mach-at91/Makefile
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Original file line number Diff line number Diff line change
Expand Up @@ -65,7 +65,7 @@ obj-$(CONFIG_MACH_AT91SAM9G20EK) += board-sam9g20ek.o
obj-$(CONFIG_MACH_CPU9G20) += board-cpu9krea.o
obj-$(CONFIG_MACH_STAMP9G20) += board-stamp9g20.o
obj-$(CONFIG_MACH_PORTUXG20) += board-stamp9g20.o
obj-$(CONFIG_MACH_PCONTROL_G20) += board-pcontrol-g20.o
obj-$(CONFIG_MACH_PCONTROL_G20) += board-pcontrol-g20.o board-stamp9g20.o

# AT91SAM9260/AT91SAM9G20 board-specific support
obj-$(CONFIG_MACH_SNAPPER_9260) += board-snapper9260.o
Expand Down
98 changes: 3 additions & 95 deletions arch/arm/mach-at91/board-pcontrol-g20.c
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Original file line number Diff line number Diff line change
Expand Up @@ -31,18 +31,15 @@

#include <mach/board.h>
#include <mach/at91sam9_smc.h>
#include <mach/stamp9g20.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);
stamp9g20_map_io();

/* USART0 on ttyS1. (Rx, Tx, CTS, RTS) piggyback A2 */
at91_register_uart(AT91SAM9260_ID_US0, 1, ATMEL_UART_CTS
Expand All @@ -54,9 +51,6 @@ static void __init pcontrol_g20_map_io(void)

/* 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);
}


Expand All @@ -66,38 +60,6 @@ static void __init init_irq(void)
}


/*
* 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,
Expand Down Expand Up @@ -138,14 +100,6 @@ static struct sam9_smc_config __initdata pcontrol_smc_config[2] = { {
.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 ) */
Expand All @@ -155,23 +109,6 @@ static void __init add_device_pcontrol(void)
}


/*
* 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
*/
Expand Down Expand Up @@ -265,42 +202,13 @@ static struct spi_board_info pcontrol_g20_spi_devices[] = {
};


/*
* 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
stamp9g20_board_init();
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));
Expand Down
82 changes: 43 additions & 39 deletions arch/arm/mach-at91/board-stamp9g20.c
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Original file line number Diff line number Diff line change
Expand Up @@ -32,14 +32,32 @@
#include "generic.h"


static void __init portuxg20_map_io(void)
void __init stamp9g20_map_io(void)
{
/* Initialize processor: 18.432 MHz crystal */
at91sam9260_initialize(18432000);

/* DGBU on ttyS0. (Rx & Tx only) */
at91_register_uart(0, 0, 0);

/* set serial console to ttyS0 (ie, DBGU) */
at91_set_serial_console(0);
}

static void __init stamp9g20evb_map_io(void)
{
stamp9g20_map_io();

/* USART0 on ttyS1. (Rx, Tx, CTS, RTS, DTR, DSR, DCD, RI) */
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);
}

static void __init portuxg20_map_io(void)
{
stamp9g20_map_io();

/* USART0 on ttyS1. (Rx, Tx, CTS, RTS, DTR, DSR, DCD, RI) */
at91_register_uart(AT91SAM9260_ID_US0, 1, ATMEL_UART_CTS | ATMEL_UART_RTS
| ATMEL_UART_DTR | ATMEL_UART_DSR
Expand All @@ -56,26 +74,6 @@ static void __init portuxg20_map_io(void)

/* USART5 on ttyS6. (Rx, Tx only) */
at91_register_uart(AT91SAM9260_ID_US5, 6, 0);

/* set serial console to ttyS0 (ie, DBGU) */
at91_set_serial_console(0);
}

static void __init stamp9g20_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) */
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);

/* set serial console to ttyS0 (ie, DBGU) */
at91_set_serial_console(0);
}

static void __init init_irq(void)
Expand Down Expand Up @@ -156,7 +154,7 @@ static struct at91_udc_data __initdata portuxg20_udc_data = {
.pullup_pin = 0, /* pull-up driven by UDC */
};

static struct at91_udc_data __initdata stamp9g20_udc_data = {
static struct at91_udc_data __initdata stamp9g20evb_udc_data = {
.vbus_pin = AT91_PIN_PA22,
.pullup_pin = 0, /* pull-up driven by UDC */
};
Expand Down Expand Up @@ -190,7 +188,7 @@ static struct gpio_led portuxg20_leds[] = {
}
};

static struct gpio_led stamp9g20_leds[] = {
static struct gpio_led stamp9g20evb_leds[] = {
{
.name = "D8",
.gpio = AT91_PIN_PB18,
Expand Down Expand Up @@ -250,7 +248,7 @@ void add_w1(void)
}


static void __init generic_board_init(void)
void __init stamp9g20_board_init(void)
{
/* Serial */
at91_add_device_serial();
Expand All @@ -262,34 +260,40 @@ static void __init generic_board_init(void)
#else
at91_add_device_mmc(0, &mmc_data);
#endif
/* USB Host */
at91_add_device_usbh(&usbh_data);
/* Ethernet */
at91_add_device_eth(&macb_data);
/* I2C */
at91_add_device_i2c(NULL, 0);
/* W1 */
add_w1();
}

static void __init portuxg20_board_init(void)
{
generic_board_init();
/* SPI */
at91_add_device_spi(portuxg20_spi_devices, ARRAY_SIZE(portuxg20_spi_devices));
stamp9g20_board_init();
/* USB Host */
at91_add_device_usbh(&usbh_data);
/* USB Device */
at91_add_device_udc(&portuxg20_udc_data);
/* Ethernet */
at91_add_device_eth(&macb_data);
/* I2C */
at91_add_device_i2c(NULL, 0);
/* SPI */
at91_add_device_spi(portuxg20_spi_devices, ARRAY_SIZE(portuxg20_spi_devices));
/* LEDs */
at91_gpio_leds(portuxg20_leds, ARRAY_SIZE(portuxg20_leds));
}

static void __init stamp9g20_board_init(void)
static void __init stamp9g20evb_board_init(void)
{
generic_board_init();
stamp9g20_board_init();
/* USB Host */
at91_add_device_usbh(&usbh_data);
/* USB Device */
at91_add_device_udc(&stamp9g20_udc_data);
at91_add_device_udc(&stamp9g20evb_udc_data);
/* Ethernet */
at91_add_device_eth(&macb_data);
/* I2C */
at91_add_device_i2c(NULL, 0);
/* LEDs */
at91_gpio_leds(stamp9g20_leds, ARRAY_SIZE(stamp9g20_leds));
at91_gpio_leds(stamp9g20evb_leds, ARRAY_SIZE(stamp9g20evb_leds));
}

MACHINE_START(PORTUXG20, "taskit PortuxG20")
Expand All @@ -305,7 +309,7 @@ MACHINE_START(STAMP9G20, "taskit Stamp9G20")
/* Maintainer: taskit GmbH */
.boot_params = AT91_SDRAM_BASE + 0x100,
.timer = &at91sam926x_timer,
.map_io = stamp9g20_map_io,
.map_io = stamp9g20evb_map_io,
.init_irq = init_irq,
.init_machine = stamp9g20_board_init,
.init_machine = stamp9g20evb_board_init,
MACHINE_END
7 changes: 7 additions & 0 deletions arch/arm/mach-at91/include/mach/stamp9g20.h
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Original file line number Diff line number Diff line change
@@ -0,0 +1,7 @@
#ifndef __MACH_STAMP9G20_H
#define __MACH_STAMP9G20_H

void stamp9g20_map_io(void);
void stamp9g20_board_init(void);

#endif

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