diff options
Diffstat (limited to 'arch/avr32/mach-at32ap/at32ap700x.c')
| -rw-r--r-- | arch/avr32/mach-at32ap/at32ap700x.c | 35 |
1 files changed, 19 insertions, 16 deletions
diff --git a/arch/avr32/mach-at32ap/at32ap700x.c b/arch/avr32/mach-at32ap/at32ap700x.c index b40ff39e0ac..1aa1ea5e921 100644 --- a/arch/avr32/mach-at32ap/at32ap700x.c +++ b/arch/avr32/mach-at32ap/at32ap700x.c @@ -1183,19 +1183,32 @@ static struct resource atmel_spi1_resource[] = { DEFINE_DEV(atmel_spi, 1); DEV_CLK(spi_clk, atmel_spi1, pba, 1); -static void __init -at32_spi_setup_slaves(unsigned int bus_num, struct spi_board_info *b, - unsigned int n, const u8 *pins) +void __init +at32_spi_setup_slaves(unsigned int bus_num, struct spi_board_info *b, unsigned int n) { + /* + * Manage the chipselects as GPIOs, normally using the same pins + * the SPI controller expects; but boards can use other pins. + */ + static u8 __initdata spi_pins[][4] = { + { GPIO_PIN_PA(3), GPIO_PIN_PA(4), + GPIO_PIN_PA(5), GPIO_PIN_PA(20) }, + { GPIO_PIN_PB(2), GPIO_PIN_PB(3), + GPIO_PIN_PB(4), GPIO_PIN_PA(27) }, + }; unsigned int pin, mode; + /* There are only 2 SPI controllers */ + if (bus_num > 1) + return; + for (; n; n--, b++) { b->bus_num = bus_num; if (b->chip_select >= 4) continue; pin = (unsigned)b->controller_data; if (!pin) { - pin = pins[b->chip_select]; + pin = spi_pins[bus_num][b->chip_select]; b->controller_data = (void *)pin; } mode = AT32_GPIOF_OUTPUT; @@ -1208,16 +1221,6 @@ at32_spi_setup_slaves(unsigned int bus_num, struct spi_board_info *b, struct platform_device *__init at32_add_device_spi(unsigned int id, struct spi_board_info *b, unsigned int n) { - /* - * Manage the chipselects as GPIOs, normally using the same pins - * the SPI controller expects; but boards can use other pins. - */ - static u8 __initdata spi0_pins[] = - { GPIO_PIN_PA(3), GPIO_PIN_PA(4), - GPIO_PIN_PA(5), GPIO_PIN_PA(20), }; - static u8 __initdata spi1_pins[] = - { GPIO_PIN_PB(2), GPIO_PIN_PB(3), - GPIO_PIN_PB(4), GPIO_PIN_PA(27), }; struct platform_device *pdev; u32 pin_mask; @@ -1230,7 +1233,7 @@ at32_add_device_spi(unsigned int id, struct spi_board_info *b, unsigned int n) select_peripheral(PIOA, (1 << 0), PERIPH_A, AT32_GPIOF_PULLUP); select_peripheral(PIOA, pin_mask, PERIPH_A, 0); - at32_spi_setup_slaves(0, b, n, spi0_pins); + at32_spi_setup_slaves(0, b, n); break; case 1: @@ -1241,7 +1244,7 @@ at32_add_device_spi(unsigned int id, struct spi_board_info *b, unsigned int n) select_peripheral(PIOB, (1 << 0), PERIPH_B, AT32_GPIOF_PULLUP); select_peripheral(PIOB, pin_mask, PERIPH_B, 0); - at32_spi_setup_slaves(1, b, n, spi1_pins); + at32_spi_setup_slaves(1, b, n); break; default: |