kernel: delete Linux 5.4 config and patches

[openwrt/staging/chunkeey.git] / target / linux / layerscape / patches-5.4 / 817-spi-0004-MLK-21960-2-spi-fspi-dynamically-alloc-AHB-memory.patch

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 (file)
index 534c014..0000000
--- 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;
- }
-