X-Git-Url: http://git.samba.org/samba.git/?p=sfrench%2Fcifs-2.6.git;a=blobdiff_plain;f=drivers%2Fspi%2Fspi-fsl-qspi.c;h=79b1558b74b8a43254c6a57ec356632c122a0b42;hp=63c9f7edaf6cb323a766fdceb6c595334e25e336;hb=2b60d727cb2e059e0569b937e742e93423ae1541;hpb=f6910679e17ad4915f008bd2c614d38052426f7c

diff --git a/drivers/spi/spi-fsl-qspi.c b/drivers/spi/spi-fsl-qspi.c
index 63c9f7edaf6c..79b1558b74b8 100644
--- a/drivers/spi/spi-fsl-qspi.c
+++ b/drivers/spi/spi-fsl-qspi.c
@@ -68,6 +68,11 @@
 #define QUADSPI_FLSHCR_TCSH_MASK	GENMASK(11, 8)
 #define QUADSPI_FLSHCR_TDH_MASK		GENMASK(17, 16)
 
+#define QUADSPI_BUF0CR                  0x10
+#define QUADSPI_BUF1CR                  0x14
+#define QUADSPI_BUF2CR                  0x18
+#define QUADSPI_BUFXCR_INVALID_MSTRID   0xe
+
 #define QUADSPI_BUF3CR			0x1c
 #define QUADSPI_BUF3CR_ALLMST_MASK	BIT(31)
 #define QUADSPI_BUF3CR_ADATSZ(x)	((x) << 8)
@@ -195,6 +200,7 @@
 struct fsl_qspi_devtype_data {
 	unsigned int rxfifo;
 	unsigned int txfifo;
+	int invalid_mstrid;
 	unsigned int ahb_buf_size;
 	unsigned int quirks;
 	bool little_endian;
@@ -203,6 +209,7 @@ struct fsl_qspi_devtype_data {
 static const struct fsl_qspi_devtype_data vybrid_data = {
 	.rxfifo = SZ_128,
 	.txfifo = SZ_64,
+	.invalid_mstrid = QUADSPI_BUFXCR_INVALID_MSTRID,
 	.ahb_buf_size = SZ_1K,
 	.quirks = QUADSPI_QUIRK_SWAP_ENDIAN,
 	.little_endian = true,
@@ -211,6 +218,7 @@ static const struct fsl_qspi_devtype_data vybrid_data = {
 static const struct fsl_qspi_devtype_data imx6sx_data = {
 	.rxfifo = SZ_128,
 	.txfifo = SZ_512,
+	.invalid_mstrid = QUADSPI_BUFXCR_INVALID_MSTRID,
 	.ahb_buf_size = SZ_1K,
 	.quirks = QUADSPI_QUIRK_4X_INT_CLK | QUADSPI_QUIRK_TKT245618,
 	.little_endian = true,
@@ -219,6 +227,7 @@ static const struct fsl_qspi_devtype_data imx6sx_data = {
 static const struct fsl_qspi_devtype_data imx7d_data = {
 	.rxfifo = SZ_128,
 	.txfifo = SZ_512,
+	.invalid_mstrid = QUADSPI_BUFXCR_INVALID_MSTRID,
 	.ahb_buf_size = SZ_1K,
 	.quirks = QUADSPI_QUIRK_TKT253890 | QUADSPI_QUIRK_4X_INT_CLK |
 		  QUADSPI_QUIRK_USE_TDH_SETTING,
@@ -228,6 +237,7 @@ static const struct fsl_qspi_devtype_data imx7d_data = {
 static const struct fsl_qspi_devtype_data imx6ul_data = {
 	.rxfifo = SZ_128,
 	.txfifo = SZ_512,
+	.invalid_mstrid = QUADSPI_BUFXCR_INVALID_MSTRID,
 	.ahb_buf_size = SZ_1K,
 	.quirks = QUADSPI_QUIRK_TKT253890 | QUADSPI_QUIRK_4X_INT_CLK |
 		  QUADSPI_QUIRK_USE_TDH_SETTING,
@@ -237,6 +247,7 @@ static const struct fsl_qspi_devtype_data imx6ul_data = {
 static const struct fsl_qspi_devtype_data ls1021a_data = {
 	.rxfifo = SZ_128,
 	.txfifo = SZ_64,
+	.invalid_mstrid = QUADSPI_BUFXCR_INVALID_MSTRID,
 	.ahb_buf_size = SZ_1K,
 	.quirks = 0,
 	.little_endian = false,
@@ -246,6 +257,7 @@ static const struct fsl_qspi_devtype_data ls2080a_data = {
 	.rxfifo = SZ_128,
 	.txfifo = SZ_64,
 	.ahb_buf_size = SZ_1K,
+	.invalid_mstrid = 0x0,
 	.quirks = QUADSPI_QUIRK_TKT253890 | QUADSPI_QUIRK_BASE_INTERNAL,
 	.little_endian = true,
 };
@@ -633,6 +645,7 @@ static int fsl_qspi_exec_op(struct spi_mem *mem, const struct spi_mem_op *op)
 	void __iomem *base = q->iobase;
 	u32 addr_offset = 0;
 	int err = 0;
+	int invalid_mstrid = q->devtype_data->invalid_mstrid;
 
 	mutex_lock(&q->lock);
 
@@ -656,6 +669,10 @@ static int fsl_qspi_exec_op(struct spi_mem *mem, const struct spi_mem_op *op)
 	qspi_writel(q, QUADSPI_SPTRCLR_BFPTRC | QUADSPI_SPTRCLR_IPPTRC,
 		    base + QUADSPI_SPTRCLR);
 
+	qspi_writel(q, invalid_mstrid, base + QUADSPI_BUF0CR);
+	qspi_writel(q, invalid_mstrid, base + QUADSPI_BUF1CR);
+	qspi_writel(q, invalid_mstrid, base + QUADSPI_BUF2CR);
+
 	fsl_qspi_prepare_lut(q, op);
 
 	/*