libavr32: board/atevk1104/init.c Source File

00001 
00041 #include <board/dataflash.h>
00042 #include <board/init.h>
00043 #include <board/sdmmc.h>
00044 #include <chip/portmux.h>
00045 #include <spi/spi.h>
00046 
00047 void board_init(void)
00048 {
00049         /* LEDs */
00050         portmux_select_gpio(PORTMUX_PORT_C, 1 << 3,
00051                         PORTMUX_DIR_OUTPUT | PORTMUX_INIT_HIGH);
00052         portmux_select_gpio(PORTMUX_PORT_X0, 1 << 5 | 1 << 6 | 1 << 9,
00053                         PORTMUX_DIR_OUTPUT | PORTMUX_INIT_HIGH);
00054 
00055         /* USART interface to board controller */
00056         portmux_enable_usart(1, PORTMUX_USART_TX | PORTMUX_USART_RX, 0);
00057 
00058         /* TWI interface to extension header J24 and audio amp U11 */
00059         portmux_enable_twi(0, 0);
00060 
00061         /* SPI interface */
00062         portmux_enable_spi(BOARD_DATAFLASH_SPI_PORT, PORTMUX_DRIVE_MIN);
00063         portmux_enable_spi_cs(BOARD_DATAFLASH_CS_PIN);
00064 
00065         /* MMC/SDCard slot A */
00066         portmux_enable_mmci(0, 0, PORTMUX_MMCI_8BIT | PORTMUX_MMCI_EXT_PULLUP,
00067                         PORTMUX_DRIVE_LOW);
00068         portmux_select_gpio_pin(BOARD_MCISLOT_A_CD,
00069                         PORTMUX_DIR_INPUT | PORTMUX_PULL_UP);
00070         portmux_select_gpio_pin(BOARD_MCISLOT_A_WP,
00071                         PORTMUX_DIR_INPUT | PORTMUX_PULL_UP);
00072 
00073         /* MMC/SDCard slot B may conflict with Nexus trace interface */
00074 #ifdef CONFIG_SDMMC_MCIHOST_SLOT_B
00075         portmux_enable_mmci(0, 1, PORTMUX_MMCI_4BIT | PORTMUX_MMCI_EXT_PULLUP,
00076                         PORTMUX_DRIVE_LOW);
00077         portmux_select_gpio_pin(BOARD_MCISLOT_B_CD,
00078                         PORTMUX_DIR_INPUT | PORTMUX_PULL_UP);
00079         portmux_select_gpio_pin(BOARD_MCISLOT_B_WP,
00080                         PORTMUX_DIR_INPUT | PORTMUX_PULL_UP);
00081 #endif
00082 }