diff options
Diffstat (limited to 'arch/avr32/boards/atngw100/setup.c')
| -rw-r--r-- | arch/avr32/boards/atngw100/setup.c | 59 |
1 files changed, 54 insertions, 5 deletions
diff --git a/arch/avr32/boards/atngw100/setup.c b/arch/avr32/boards/atngw100/setup.c index a398be284966..6c54580a66df 100644 --- a/arch/avr32/boards/atngw100/setup.c +++ b/arch/avr32/boards/atngw100/setup.c @@ -9,6 +9,9 @@ */ #include <linux/clk.h> #include <linux/etherdevice.h> +#include <linux/gpio.h> +#include <linux/irq.h> +#include <linux/i2c.h> #include <linux/i2c-gpio.h> #include <linux/init.h> #include <linux/linkage.h> @@ -17,13 +20,21 @@ #include <linux/leds.h> #include <linux/spi/spi.h> +#include <asm/atmel-mci.h> #include <asm/io.h> #include <asm/setup.h> -#include <asm/arch/at32ap700x.h> -#include <asm/arch/board.h> -#include <asm/arch/init.h> -#include <asm/arch/portmux.h> +#include <mach/at32ap700x.h> +#include <mach/board.h> +#include <mach/init.h> +#include <mach/portmux.h> + +/* Oscillator frequencies. These are board-specific */ +unsigned long at32_board_osc_rates[3] = { + [0] = 32768, /* 32.768 kHz on RTC osc */ + [1] = 20000000, /* 20 MHz on osc0 */ + [2] = 12000000, /* 12 MHz on osc1 */ +}; /* Initialized by bootloader-specific startup code. */ struct tag *bootloader_tags __initdata; @@ -37,11 +48,19 @@ static struct eth_platform_data __initdata eth_data[2]; static struct spi_board_info spi0_board_info[] __initdata = { { .modalias = "mtd_dataflash", - .max_speed_hz = 10000000, + .max_speed_hz = 8000000, .chip_select = 0, }, }; +static struct mci_platform_data __initdata mci0_data = { + .slot[0] = { + .bus_width = 4, + .detect_pin = GPIO_PIN_PC(25), + .wp_pin = GPIO_PIN_PE(0), + }, +}; + /* * The next two functions should go away as the boot loader is * supposed to initialize the macb address registers with a valid @@ -140,6 +159,10 @@ static struct platform_device i2c_gpio_device = { }, }; +static struct i2c_board_info __initdata i2c_info[] = { + /* NOTE: original ATtiny24 firmware is at address 0x0b */ +}; + static int __init atngw100_init(void) { unsigned i; @@ -157,6 +180,7 @@ static int __init atngw100_init(void) set_hw_addr(at32_add_device_eth(1, ð_data[1])); at32_add_device_spi(0, spi0_board_info, ARRAY_SIZE(spi0_board_info)); + at32_add_device_mci(0, &mci0_data); at32_add_device_usba(0, NULL); for (i = 0; i < ARRAY_SIZE(ngw_leds); i++) { @@ -165,12 +189,37 @@ static int __init atngw100_init(void) } platform_device_register(&ngw_gpio_leds); + /* all these i2c/smbus pins should have external pullups for + * open-drain sharing among all I2C devices. SDA and SCL do; + * PB28/EXTINT3 doesn't; it should be SMBALERT# (for PMBus), + * but it's not available off-board. + */ + at32_select_periph(GPIO_PIOB_BASE, 1 << 28, 0, AT32_GPIOF_PULLUP); at32_select_gpio(i2c_gpio_data.sda_pin, AT32_GPIOF_MULTIDRV | AT32_GPIOF_OUTPUT | AT32_GPIOF_HIGH); at32_select_gpio(i2c_gpio_data.scl_pin, AT32_GPIOF_MULTIDRV | AT32_GPIOF_OUTPUT | AT32_GPIOF_HIGH); platform_device_register(&i2c_gpio_device); + i2c_register_board_info(0, i2c_info, ARRAY_SIZE(i2c_info)); return 0; } postcore_initcall(atngw100_init); + +static int __init atngw100_arch_init(void) +{ + /* PB30 is the otherwise unused jumper on the mainboard, with an + * external pullup; the jumper grounds it. Use it however you + * like, including letting U-Boot or Linux tweak boot sequences. + */ + at32_select_gpio(GPIO_PIN_PB(30), 0); + gpio_request(GPIO_PIN_PB(30), "j15"); + gpio_direction_input(GPIO_PIN_PB(30)); + gpio_export(GPIO_PIN_PB(30), false); + + /* set_irq_type() after the arch_initcall for EIC has run, and + * before the I2C subsystem could try using this IRQ. + */ + return set_irq_type(AT32_EXTINT(3), IRQ_TYPE_EDGE_FALLING); +} +arch_initcall(atngw100_arch_init); |