diff options
Diffstat (limited to 'board/freescale/imx51/imx51.c')
| -rw-r--r-- | board/freescale/imx51/imx51.c | 44 |
1 files changed, 43 insertions, 1 deletions
diff --git a/board/freescale/imx51/imx51.c b/board/freescale/imx51/imx51.c index c8fe23b..793afa2 100644 --- a/board/freescale/imx51/imx51.c +++ b/board/freescale/imx51/imx51.c @@ -30,6 +30,7 @@ #include <asm/arch/iomux.h> #include <i2c.h> #include "board-imx51.h" +#include <asm/arch/imx_spi.h> DECLARE_GLOBAL_DATA_PTR; @@ -159,7 +160,6 @@ static void setup_expio(void) int board_init(void) { - int pad; setup_soc_rev(); gd->bd->bi_arch_number = MACH_TYPE_MX51_3DS; /* board id for linux */ @@ -200,6 +200,48 @@ int checkboard(void) return 0; } +void spi_io_init(struct imx_spi_dev_t *dev) +{ + switch (dev->base) { + case CSPI1_BASE_ADDR: + /* 000: Select mux mode: ALT0 mux port: MOSI of instance: ecspi1 */ + mxc_request_iomux(MX51_PIN_CSPI1_MOSI, IOMUX_CONFIG_ALT0); + mxc_iomux_set_pad(MX51_PIN_CSPI1_MOSI, 0x105); + + /* 000: Select mux mode: ALT0 mux port: MISO of instance: ecspi1. */ + mxc_request_iomux(MX51_PIN_CSPI1_MISO, IOMUX_CONFIG_ALT0); + mxc_iomux_set_pad(MX51_PIN_CSPI1_MISO, 0x105); + + if (dev->ss == 0) { + /* de-select SS1 of instance: ecspi1. */ + mxc_request_iomux(MX51_PIN_CSPI1_SS1, IOMUX_CONFIG_ALT3); + mxc_iomux_set_pad(MX51_PIN_CSPI1_SS1, 0x85); + /* 000: Select mux mode: ALT0 mux port: SS0 of instance: ecspi1. */ + mxc_request_iomux(MX51_PIN_CSPI1_SS0, IOMUX_CONFIG_ALT0); + mxc_iomux_set_pad(MX51_PIN_CSPI1_SS0, 0x185); + } else if (dev->ss == 1) { + /* de-select SS0 of instance: ecspi1. */ + mxc_request_iomux(MX51_PIN_CSPI1_SS0, IOMUX_CONFIG_ALT3); + mxc_iomux_set_pad(MX51_PIN_CSPI1_SS0, 0x85); + /* 000: Select mux mode: ALT0 mux port: SS1 of instance: ecspi1. */ + mxc_request_iomux(MX51_PIN_CSPI1_SS1, IOMUX_CONFIG_ALT0); + mxc_iomux_set_pad(MX51_PIN_CSPI1_SS1, 0x105); + } + + /* 000: Select mux mode: ALT0 mux port: RDY of instance: ecspi1. */ + mxc_request_iomux(MX51_PIN_CSPI1_RDY, IOMUX_CONFIG_ALT0); + mxc_iomux_set_pad(MX51_PIN_CSPI1_RDY, 0x180); + + /* 000: Select mux mode: ALT0 mux port: SCLK of instance: ecspi1. */ + mxc_request_iomux(MX51_PIN_CSPI1_SCLK, IOMUX_CONFIG_ALT0); + mxc_iomux_set_pad(MX51_PIN_CSPI1_SCLK, 0x105); + break; + case CSPI2_BASE_ADDR: + default: + break; + } +} + #ifdef CONFIG_NET_MULTI int board_eth_init(bd_t *bis) { |