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-rw-r--r--drivers/spi/kirkwood_spi.c36
1 files changed, 36 insertions, 0 deletions
diff --git a/drivers/spi/kirkwood_spi.c b/drivers/spi/kirkwood_spi.c
index 01e1d11..db4bb0a 100644
--- a/drivers/spi/kirkwood_spi.c
+++ b/drivers/spi/kirkwood_spi.c
@@ -83,13 +83,49 @@ void spi_free_slave(struct spi_slave *slave)
free(slave);
}
+#if defined(CONFIG_SYS_KW_SPI_MPP)
+u32 spi_mpp_backup[4];
+#endif
+
int spi_claim_bus(struct spi_slave *slave)
{
+#if defined(CONFIG_SYS_KW_SPI_MPP)
+ u32 config;
+ u32 spi_mpp_config[4];
+
+ config = CONFIG_SYS_KW_SPI_MPP;
+
+ if (config & MOSI_MPP6)
+ spi_mpp_config[0] = MPP6_SPI_MOSI;
+ else
+ spi_mpp_config[0] = MPP1_SPI_MOSI;
+
+ if (config & SCK_MPP10)
+ spi_mpp_config[1] = MPP10_SPI_SCK;
+ else
+ spi_mpp_config[1] = MPP2_SPI_SCK;
+
+ if (config & MISO_MPP11)
+ spi_mpp_config[2] = MPP11_SPI_MISO;
+ else
+ spi_mpp_config[2] = MPP3_SPI_MISO;
+
+ spi_mpp_config[3] = 0;
+ spi_mpp_backup[3] = 0;
+
+ /* set new spi mpp and save current mpp config */
+ kirkwood_mpp_conf(spi_mpp_config, spi_mpp_backup);
+
+#endif
+
return 0;
}
void spi_release_bus(struct spi_slave *slave)
{
+#if defined(CONFIG_SYS_KW_SPI_MPP)
+ kirkwood_mpp_conf(spi_mpp_backup, NULL);
+#endif
}
#ifndef CONFIG_SPI_CS_IS_VALID