diff options
Diffstat (limited to 'target/linux/layerscape/patches-4.4/1099-mtd-spi-nor-fsl-quadspi-Add-fast-read-mode-support.patch')
| -rw-r--r-- | target/linux/layerscape/patches-4.4/1099-mtd-spi-nor-fsl-quadspi-Add-fast-read-mode-support.patch | 72 |
1 files changed, 0 insertions, 72 deletions
diff --git a/target/linux/layerscape/patches-4.4/1099-mtd-spi-nor-fsl-quadspi-Add-fast-read-mode-support.patch b/target/linux/layerscape/patches-4.4/1099-mtd-spi-nor-fsl-quadspi-Add-fast-read-mode-support.patch deleted file mode 100644 index ac99ba9504..0000000000 --- a/target/linux/layerscape/patches-4.4/1099-mtd-spi-nor-fsl-quadspi-Add-fast-read-mode-support.patch +++ /dev/null @@ -1,72 +0,0 @@ -From c501cdf57682265b72a8180c06e4a01dc2978375 Mon Sep 17 00:00:00 2001 -From: Yunhui Cui <B56489@freescale.com> -Date: Mon, 1 Feb 2016 18:26:23 +0800 -Subject: [PATCH 099/113] mtd:spi-nor:fsl-quadspi:Add fast-read mode support - -The qspi driver add generic fast-read mode for different -flash venders. There are some different board flash work on -different mode, such fast-read, quad-mode. -So we have to modify the third entrace parameter of spi_nor_scan(). - -Signed-off-by: Yunhui Cui <B56489@freescale.com> ---- - drivers/mtd/spi-nor/fsl-quadspi.c | 27 +++++++++++++++++++++------ - 1 file changed, 21 insertions(+), 6 deletions(-) - ---- a/drivers/mtd/spi-nor/fsl-quadspi.c -+++ b/drivers/mtd/spi-nor/fsl-quadspi.c -@@ -389,11 +389,21 @@ static void fsl_qspi_init_lut(struct fsl - /* Read */ - lut_base = SEQID_READ * 4; - -- qspi_writel(q, LUT0(CMD, PAD1, read_op) | LUT1(ADDR, PAD1, addrlen), -- base + QUADSPI_LUT(lut_base)); -- qspi_writel(q, LUT0(DUMMY, PAD1, read_dm) | -- LUT1(FSL_READ, PAD4, rxfifo), -- base + QUADSPI_LUT(lut_base + 1)); -+ if (nor->flash_read == SPI_NOR_FAST) { -+ qspi_writel(q, LUT0(CMD, PAD1, read_op) | -+ LUT1(ADDR, PAD1, addrlen), -+ base + QUADSPI_LUT(lut_base)); -+ qspi_writel(q, LUT0(DUMMY, PAD1, read_dm) | -+ LUT1(FSL_READ, PAD1, rxfifo), -+ base + QUADSPI_LUT(lut_base + 1)); -+ } else if (nor->flash_read == SPI_NOR_QUAD) { -+ qspi_writel(q, LUT0(CMD, PAD1, read_op) | -+ LUT1(ADDR, PAD1, addrlen), -+ base + QUADSPI_LUT(lut_base)); -+ qspi_writel(q, LUT0(DUMMY, PAD1, read_dm) | -+ LUT1(FSL_READ, PAD4, rxfifo), -+ base + QUADSPI_LUT(lut_base + 1)); -+ } - - /* Write enable */ - lut_base = SEQID_WREN * 4; -@@ -468,6 +478,7 @@ static int fsl_qspi_get_seqid(struct fsl - { - switch (cmd) { - case SPINOR_OP_READ_1_1_4: -+ case SPINOR_OP_READ_FAST: - return SEQID_READ; - case SPINOR_OP_WREN: - return SEQID_WREN; -@@ -964,6 +975,7 @@ static int fsl_qspi_probe(struct platfor - struct spi_nor *nor; - struct mtd_info *mtd; - int ret, i = 0; -+ enum read_mode mode = SPI_NOR_QUAD; - - q = devm_kzalloc(dev, sizeof(*q), GFP_KERNEL); - if (!q) -@@ -1065,7 +1077,10 @@ static int fsl_qspi_probe(struct platfor - /* set the chip address for READID */ - fsl_qspi_set_base_addr(q, nor); - -- ret = spi_nor_scan(nor, NULL, SPI_NOR_QUAD); -+ ret = of_property_read_bool(np, "m25p,fast-read"); -+ mode = (ret) ? SPI_NOR_FAST : SPI_NOR_QUAD; -+ -+ ret = spi_nor_scan(nor, NULL, mode); - if (ret) - goto mutex_failed; - |