1 files changed, 0 insertions, 67 deletions
diff --git a/target/linux/layerscape/patches-4.4/1107-mtd-fsl-quadspi-disable-AHB-buffer-prefetch.patch b/target/linux/layerscape/patches-4.4/1107-mtd-fsl-quadspi-disable-AHB-buffer-prefetch.patch
deleted file mode 100644
index 19dff6c92e..0000000000
--- a/target/linux/layerscape/patches-4.4/1107-mtd-fsl-quadspi-disable-AHB-buffer-prefetch.patch
+++ /dev/null
@@ -1,67 +0,0 @@
-From 50aac689d5be0a086f076cd4bc8b14ee0b9ab995 Mon Sep 17 00:00:00 2001
-From: Yunhui Cui <yunhui.cui@nxp.com>
-Date: Tue, 8 Mar 2016 14:38:52 +0800
-Subject: [PATCH 107/113] mtd: fsl-quadspi: disable AHB buffer prefetch
-
-A-009282: QuadSPI: QuadSPI data pre-fetch can result in incorrect data
-Affects: QuadSPI
-Description: With AHB buffer prefetch enabled, the QuadSPI may return
-incorrect data on the AHB
-interface. The buffer pre-fetch is enabled if the fetch size as
-configured either in the LUT or in
-the BUFxCR register is greater than 8 bytes.
-Impact: Only 64 bit read allowed.
-Workaround: Keep the read data size to 64 bits (8 Bytes), which disables
-the prefetch on the AHB buffer,
-and prevents this issue from occurring.
-
-Signed-off-by: Yunhui Cui <yunhui.cui@nxp.com>
----
- drivers/mtd/spi-nor/fsl-quadspi.c |   29 +++++++++++++++++++++++------
- 1 file changed, 23 insertions(+), 6 deletions(-)
-
---- a/drivers/mtd/spi-nor/fsl-quadspi.c
-+++ b/drivers/mtd/spi-nor/fsl-quadspi.c
-@@ -794,19 +794,36 @@ static void fsl_qspi_init_abh_read(struc
- {
- 	void __iomem *base = q->iobase;
- 	int seqid;
-+	const struct fsl_qspi_devtype_data *devtype_data = q->devtype_data;
- 
- 	/* AHB configuration for access buffer 0/1/2 .*/
- 	qspi_writel(q, QUADSPI_BUFXCR_INVALID_MSTRID, base + QUADSPI_BUF0CR);
- 	qspi_writel(q, QUADSPI_BUFXCR_INVALID_MSTRID, base + QUADSPI_BUF1CR);
- 	qspi_writel(q, QUADSPI_BUFXCR_INVALID_MSTRID, base + QUADSPI_BUF2CR);
-+
- 	/*
--	 * Set ADATSZ with the maximum AHB buffer size to improve the
--	 * read performance.
-+	 * Errata: A-009282: QuadSPI data prefetch may result in incorrect data
-+	 * Workaround: Keep the read data size to 64 bits (8 bytes).
-+	 * This disables the prefetch on the AHB buffer and
-+	 * prevents this issue from occurring.
- 	 */
--	qspi_writel(q, QUADSPI_BUF3CR_ALLMST_MASK |
--			((q->devtype_data->ahb_buf_size / 8)
--			<< QUADSPI_BUF3CR_ADATSZ_SHIFT),
--			base + QUADSPI_BUF3CR);
-+	if (devtype_data->devtype == FSL_QUADSPI_LS2080A ||
-+	    devtype_data->devtype == FSL_QUADSPI_LS1021A) {
-+
-+		qspi_writel(q, QUADSPI_BUF3CR_ALLMST_MASK |
-+				(1 << QUADSPI_BUF3CR_ADATSZ_SHIFT),
-+				base + QUADSPI_BUF3CR);
-+
-+	} else {
-+		/*
-+		 * Set ADATSZ with the maximum AHB buffer size to improve the
-+		 * read performance.
-+		*/
-+		qspi_writel(q, QUADSPI_BUF3CR_ALLMST_MASK |
-+				((q->devtype_data->ahb_buf_size / 8)
-+				<< QUADSPI_BUF3CR_ADATSZ_SHIFT),
-+				base + QUADSPI_BUF3CR);
-+	}
- 
- 	/* We only use the buffer3 */
- 	qspi_writel(q, 0, base + QUADSPI_BUF0IND);