kernel: delete Linux 5.4 config and patches

As the upcoming release will be based on Linux 5.10 only, remove all
kernel configuration as well as patches for Linux 5.4.
There were no targets still actively using Linux 5.4.

Signed-off-by: Daniel Golle <daniel@makrotopia.org>
(cherry picked from commit 3a14580411adfb75f9a44eded9f41245b9e44606)

1 files changed, 0 insertions, 100 deletions

diff --git a/target/linux/layerscape/patches-5.4/817-spi-0004-MLK-21960-2-spi-fspi-dynamically-alloc-AHB-memory.patch b/target/linux/layerscape/patches-5.4/817-spi-0004-MLK-21960-2-spi-fspi-dynamically-alloc-AHB-memory.patch
deleted file mode 100644
index 534c014a2b..0000000000
--- a/target/linux/layerscape/patches-5.4/817-spi-0004-MLK-21960-2-spi-fspi-dynamically-alloc-AHB-memory.patch
+++ /dev/null
@@ -1,100 +0,0 @@
-From 6e46fe6d9428a41543bd19644de3c9f2611b73bf Mon Sep 17 00:00:00 2001
-From: Han Xu <han.xu@nxp.com>
-Date: Wed, 5 Jun 2019 16:43:30 -0500
-Subject: [PATCH] MLK-21960-2: spi: fspi: dynamically alloc AHB memory
-
-dynamically allocate AHB memory as needed.
-
-Signed-off-by: Han Xu <han.xu@nxp.com>
----
- drivers/spi/spi-nxp-fspi.c | 40 ++++++++++++++++++++++++++++++++++------
- 1 file changed, 34 insertions(+), 6 deletions(-)
-
---- a/drivers/spi/spi-nxp-fspi.c
-+++ b/drivers/spi/spi-nxp-fspi.c
-@@ -307,6 +307,7 @@
- 
- #define POLL_TOUT		5000
- #define NXP_FSPI_MAX_CHIPSELECT		4
-+#define NXP_FSPI_MIN_IOMAP	SZ_4M
- 
- struct nxp_fspi_devtype_data {
- 	unsigned int rxfifo;
-@@ -345,6 +346,8 @@ struct nxp_fspi {
- 	void __iomem *ahb_addr;
- 	u32 memmap_phy;
- 	u32 memmap_phy_size;
-+	u32 memmap_start;
-+	u32 memmap_len;
- 	struct clk *clk, *clk_en;
- 	struct device *dev;
- 	struct completion c;
-@@ -657,12 +660,35 @@ static void nxp_fspi_select_mem(struct n
- 	f->selected = spi->chip_select;
- }
- 
--static void nxp_fspi_read_ahb(struct nxp_fspi *f, const struct spi_mem_op *op)
-+static int nxp_fspi_read_ahb(struct nxp_fspi *f, const struct spi_mem_op *op)
- {
-+	u32 start = op->addr.val;
- 	u32 len = op->data.nbytes;
- 
-+	/* if necessary, ioremap before AHB read */
-+	if ((!f->ahb_addr) || start < f->memmap_start ||
-+	     start + len > f->memmap_start + f->memmap_len) {
-+		if (f->ahb_addr)
-+			iounmap(f->ahb_addr);
-+
-+		f->memmap_start = start;
-+		f->memmap_len = len > NXP_FSPI_MIN_IOMAP ?
-+				len : NXP_FSPI_MIN_IOMAP;
-+
-+		f->ahb_addr = ioremap_wc(f->memmap_phy + f->memmap_start,
-+					 f->memmap_len);
-+
-+		if (!f->ahb_addr) {
-+			dev_err(f->dev, "failed to alloc memory\n");
-+			return -ENOMEM;
-+		}
-+	}
-+
- 	/* Read out the data directly from the AHB buffer. */
--	memcpy_fromio(op->data.buf.in, (f->ahb_addr + op->addr.val), len);
-+	memcpy_fromio(op->data.buf.in,
-+		      f->ahb_addr + start - f->memmap_start, len);
-+
-+	return 0;
- }
- 
- static void nxp_fspi_fill_txfifo(struct nxp_fspi *f,
-@@ -822,7 +848,7 @@ static int nxp_fspi_exec_op(struct spi_m
- 	 */
- 	if (op->data.nbytes > (f->devtype_data->rxfifo - 4) &&
- 	    op->data.dir == SPI_MEM_DATA_IN) {
--		nxp_fspi_read_ahb(f, op);
-+		err = nxp_fspi_read_ahb(f, op);
- 	} else {
- 		if (op->data.nbytes && op->data.dir == SPI_MEM_DATA_OUT)
- 			nxp_fspi_fill_txfifo(f, op);
-@@ -993,9 +1019,8 @@ static int nxp_fspi_probe(struct platfor
- 
- 	/* find the resources - controller memory mapped space */
- 	res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "fspi_mmap");
--	f->ahb_addr = devm_ioremap_resource(dev, res);
--	if (IS_ERR(f->ahb_addr)) {
--		ret = PTR_ERR(f->ahb_addr);
-+	if (IS_ERR(res)) {
-+		ret = PTR_ERR(res);
- 		goto err_put_ctrl;
- 	}
- 
-@@ -1079,6 +1104,9 @@ static int nxp_fspi_remove(struct platfo
- 
- 	mutex_destroy(&f->lock);
- 
-+	if (f->ahb_addr)
-+		iounmap(f->ahb_addr);
-+
- 	return 0;
- }
-