From b97e0cd78837180e122cd9209b9e71e2c2d3f911 Mon Sep 17 00:00:00 2001 From: Wolfgang Wegner Date: Fri, 23 Apr 2010 05:43:12 +0000 Subject: [PATCH] add CONFIG_SPI_IDLE_VAL for cf_spi.c to allow use of spi_mmc This patch adds CONFIG_SPI_IDLE_VAL to cf_spi.c The default setting is 0x0 to behave same as current version, in case CONFIG_SPI_MMC is set, the value is set to 0xFFFF (all ones). In either case, the value can be overwritten by board configuration. Signed-off-by: Wolfgang Wegner Signed-off-by: Andy Fleming --- drivers/spi/cf_spi.c | 14 +++++++++++--- 1 file changed, 11 insertions(+), 3 deletions(-) diff --git a/drivers/spi/cf_spi.c b/drivers/spi/cf_spi.c index 722aafc73c..a883da9368 100644 --- a/drivers/spi/cf_spi.c +++ b/drivers/spi/cf_spi.c @@ -49,6 +49,14 @@ extern void cfspi_release_bus(uint bus, uint cs); DECLARE_GLOBAL_DATA_PTR; +#ifndef CONFIG_SPI_IDLE_VAL +#if defined(CONFIG_SPI_MMC) +#define CONFIG_SPI_IDLE_VAL 0xFFFF +#else +#define CONFIG_SPI_IDLE_VAL 0x0 +#endif +#endif + #if defined(CONFIG_CF_DSPI) /* DSPI specific mode */ #define SPI_MODE_MOD 0x00200000 @@ -145,7 +153,7 @@ int cfspi_xfer(struct spi_slave *slave, uint bitlen, const void *dout, } if (din != NULL) { - cfspi_tx(ctrl, 0); + cfspi_tx(ctrl, CONFIG_SPI_IDLE_VAL); if (cfslave->charbit == 16) *spi_rd16++ = cfspi_rx(); else @@ -169,7 +177,7 @@ int cfspi_xfer(struct spi_slave *slave, uint bitlen, const void *dout, } if (din != NULL) { - cfspi_tx(ctrl, 0); + cfspi_tx(ctrl, CONFIG_SPI_IDLE_VAL); if (cfslave->charbit == 16) *spi_rd16 = cfspi_rx(); else @@ -177,7 +185,7 @@ int cfspi_xfer(struct spi_slave *slave, uint bitlen, const void *dout, } } else { /* dummy read */ - cfspi_tx(ctrl, 0); + cfspi_tx(ctrl, CONFIG_SPI_IDLE_VAL); cfspi_rx(); } -- 2.30.2