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-rw-r--r--drivers/spi/spi-pxa2xx.c8
1 files changed, 6 insertions, 2 deletions
diff --git a/drivers/spi/spi-pxa2xx.c b/drivers/spi/spi-pxa2xx.c
index a98df7eeb42d..fe792106bdc5 100644
--- a/drivers/spi/spi-pxa2xx.c
+++ b/drivers/spi/spi-pxa2xx.c
@@ -118,6 +118,7 @@ static void lpss_ssp_setup(struct driver_data *drv_data)
118 */ 118 */
119 orig = readl(drv_data->ioaddr + offset + SPI_CS_CONTROL); 119 orig = readl(drv_data->ioaddr + offset + SPI_CS_CONTROL);
120 120
121 /* Test SPI_CS_CONTROL_SW_MODE bit enabling */
121 value = orig | SPI_CS_CONTROL_SW_MODE; 122 value = orig | SPI_CS_CONTROL_SW_MODE;
122 writel(value, drv_data->ioaddr + offset + SPI_CS_CONTROL); 123 writel(value, drv_data->ioaddr + offset + SPI_CS_CONTROL);
123 value = readl(drv_data->ioaddr + offset + SPI_CS_CONTROL); 124 value = readl(drv_data->ioaddr + offset + SPI_CS_CONTROL);
@@ -126,10 +127,13 @@ static void lpss_ssp_setup(struct driver_data *drv_data)
126 goto detection_done; 127 goto detection_done;
127 } 128 }
128 129
129 value &= ~SPI_CS_CONTROL_SW_MODE; 130 orig = readl(drv_data->ioaddr + offset + SPI_CS_CONTROL);
131
132 /* Test SPI_CS_CONTROL_SW_MODE bit disabling */
133 value = orig & ~SPI_CS_CONTROL_SW_MODE;
130 writel(value, drv_data->ioaddr + offset + SPI_CS_CONTROL); 134 writel(value, drv_data->ioaddr + offset + SPI_CS_CONTROL);
131 value = readl(drv_data->ioaddr + offset + SPI_CS_CONTROL); 135 value = readl(drv_data->ioaddr + offset + SPI_CS_CONTROL);
132 if (value != orig) { 136 if (value != (orig & ~SPI_CS_CONTROL_SW_MODE)) {
133 offset = 0x800; 137 offset = 0x800;
134 goto detection_done; 138 goto detection_done;
135 } 139 }