From 6b918657b7431e4c5c953b8222ae2f4fc1b2576a Mon Sep 17 00:00:00 2001 From: Haavard Skinnemoen Date: Thu, 7 Aug 2008 14:08:49 +0200 Subject: atmel-mci: Platform code for supporting multiple mmc slots Add the necessary platform infrastructure to support multiple mmc/sdcard slots all at once through a single controller. Currently, the driver will use the first valid slot it finds and stick with that, but later patches will add support for switching between several slots on the fly. Extend the platform data structure with per-slot information: MMC/SDcard bus width and card detect/write protect pins. This will affect the pin muxing as well as the capabilities announced to the mmc core. Note that board code is now required to supply a mci_platform_data struct to at32_add_device_mci(). Signed-off-by: Haavard Skinnemoen --- arch/avr32/boards/atstk1000/atstk1002.c | 18 +++++++++++------- 1 file changed, 11 insertions(+), 7 deletions(-) (limited to 'arch/avr32/boards/atstk1000/atstk1002.c') diff --git a/arch/avr32/boards/atstk1000/atstk1002.c b/arch/avr32/boards/atstk1000/atstk1002.c index dfc3443e23aa..4fedbc4488de 100644 --- a/arch/avr32/boards/atstk1000/atstk1002.c +++ b/arch/avr32/boards/atstk1000/atstk1002.c @@ -264,16 +264,20 @@ void __init setup_board(void) #ifndef CONFIG_BOARD_ATSTK100X_SW2_CUSTOM +static struct mci_platform_data __initdata mci0_data = { + .slot[0] = { + .bus_width = 4, + /* MMC card detect requires MACB0 *NOT* be used */ #ifdef CONFIG_BOARD_ATSTK1002_SW6_CUSTOM -static struct mci_platform_data __initdata mci0_data = { - .detect_pin = GPIO_PIN_PC(14), /* gpio30/sdcd */ - .wp_pin = GPIO_PIN_PC(15), /* gpio31/sdwp */ -}; -#define MCI_PDATA &mci0_data + .detect_pin = GPIO_PIN_PC(14), /* gpio30/sdcd */ + .wp_pin = GPIO_PIN_PC(15), /* gpio31/sdwp */ #else -#define MCI_PDATA NULL + .detect_pin = -ENODEV, + .wp_pin = -ENODEV, #endif /* SW6 for sd{cd,wp} routing */ + }, +}; #endif /* SW2 for MMC signal routing */ @@ -326,7 +330,7 @@ static int __init atstk1002_init(void) at32_add_device_spi(1, spi1_board_info, ARRAY_SIZE(spi1_board_info)); #endif #ifndef CONFIG_BOARD_ATSTK100X_SW2_CUSTOM - at32_add_device_mci(0, MCI_PDATA); + at32_add_device_mci(0, &mci0_pdata); #endif #ifdef CONFIG_BOARD_ATSTK1002_SW5_CUSTOM set_hw_addr(at32_add_device_eth(1, ð_data[1])); -- cgit v1.2.3