diff options
| author | Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> | 2012-11-03 12:36:32 +0100 |
|---|---|---|
| committer | Sascha Hauer <s.hauer@pengutronix.de> | 2012-11-15 20:20:29 +0100 |
| commit | ca2d9c59a237c4d4272093411612813ec2d0fa04 (patch) | |
| tree | 9e914010812589c1957c8a145821fea41cf672f0 /arch/arm/mach-at91/at91sam9x5_devices.c | |
| parent | d7a4acac7c9ba73eef55bf26cef5145f63e56dd7 (diff) | |
| download | barebox-ca2d9c59a237c4d4272093411612813ec2d0fa04.tar.gz barebox-ca2d9c59a237c4d4272093411612813ec2d0fa04.tar.xz | |
at91sam9x5: add mci support
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'arch/arm/mach-at91/at91sam9x5_devices.c')
| -rw-r--r-- | arch/arm/mach-at91/at91sam9x5_devices.c | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/arch/arm/mach-at91/at91sam9x5_devices.c b/arch/arm/mach-at91/at91sam9x5_devices.c index 710ded7099..14fcb1e6af 100644 --- a/arch/arm/mach-at91/at91sam9x5_devices.c +++ b/arch/arm/mach-at91/at91sam9x5_devices.c @@ -123,6 +123,68 @@ void at91_add_device_eth(int id, struct at91_ether_platform_data *data) void at91_add_device_eth(int id, struct at91_ether_platform_data *data) {} #endif +#if defined(CONFIG_MCI_ATMEL) +/* Consider only one slot : slot 0 */ +void __init at91_add_device_mci(short mmc_id, struct atmel_mci_platform_data *data) +{ + resource_size_t start = ~0; + + if (!data) + return; + + /* Must have at least one usable slot */ + if (!data->bus_width) + return; + + /* input/irq */ + if (data->detect_pin) { + at91_set_gpio_input(data->detect_pin, 1); + at91_set_deglitch(data->detect_pin, 1); + } + if (data->wp_pin) + at91_set_gpio_input(data->wp_pin, 1); + + if (mmc_id == 0) { /* MCI0 */ + start = AT91SAM9X5_BASE_MCI0; + + /* CLK */ + at91_set_A_periph(AT91_PIN_PA17, 0); + + /* CMD */ + at91_set_A_periph(AT91_PIN_PA16, 1); + + /* DAT0, maybe DAT1..DAT3 */ + at91_set_A_periph(AT91_PIN_PA15, 1); + if (data->bus_width == 4) { + at91_set_A_periph(AT91_PIN_PA18, 1); + at91_set_A_periph(AT91_PIN_PA19, 1); + at91_set_A_periph(AT91_PIN_PA20, 1); + } + } else { /* MCI1 */ + start = AT91SAM9X5_BASE_MCI1; + + /* CLK */ + at91_set_B_periph(AT91_PIN_PA13, 0); + + /* CMD */ + at91_set_B_periph(AT91_PIN_PA12, 1); + + /* DAT0, maybe DAT1..DAT3 */ + at91_set_B_periph(AT91_PIN_PA11, 1); + if (data->bus_width == 4) { + at91_set_B_periph(AT91_PIN_PA2, 1); + at91_set_B_periph(AT91_PIN_PA3, 1); + at91_set_B_periph(AT91_PIN_PA4, 1); + } + } + + add_generic_device("atmel_mci", mmc_id, NULL, start, SZ_16K, + IORESOURCE_MEM, data); +} +#else +void __init at91_add_device_mci(short mmc_id, struct atmel_mci_platform_data *data) {} +#endif + /* -------------------------------------------------------------------- * NAND / SmartMedia * -------------------------------------------------------------------- */ |