kernel: bump 4.9 to 4.9.202
[openwrt/staging/chunkeey.git] / target / linux / ramips / patches-4.14 / 303-spi-nor-enable-4B-opcodes-for-mx66l51235l.patch
index 7b13e68d8fb3dee54fd7357734671a95d2e8a07d..4832ebff2bfe34c08913903ecb9c537df8f251ee 100644 (file)
@@ -1,6 +1,6 @@
 --- a/drivers/mtd/spi-nor/spi-nor.c
 +++ b/drivers/mtd/spi-nor/spi-nor.c
-@@ -1083,7 +1083,7 @@ static const struct flash_info spi_nor_i
+@@ -1100,7 +1100,7 @@ static const struct flash_info spi_nor_i
        { "mx25l25635e", INFO(0xc22019, 0, 64 * 1024, 512, SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ) },
        { "mx25u25635f", INFO(0xc22539, 0, 64 * 1024, 512, SECT_4K | SPI_NOR_4B_OPCODES) },
        { "mx25l25655e", INFO(0xc22619, 0, 64 * 1024, 512, 0) },
@@ -9,56 +9,3 @@
        { "mx66u51235f", INFO(0xc2253a, 0, 64 * 1024, 1024, SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ | SPI_NOR_4B_OPCODES) },
        { "mx66l1g45g",  INFO(0xc2201b, 0, 64 * 1024, 2048, SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ) },
        { "mx66l1g55g",  INFO(0xc2261b, 0, 64 * 1024, 2048, SPI_NOR_QUAD_READ) },
-@@ -1947,7 +1947,11 @@ static int spi_nor_read_sfdp(struct spi_
-       nor->read_dummy = 8;
-       while (len) {
--              ret = nor->read(nor, addr, len, (u8 *)buf);
-+              size_t _len = len;
-+
-+              if (nor->chunk_size)
-+                      _len = min(len, nor->chunk_size);
-+              ret = nor->read(nor, addr, _len, (u8 *)buf);
-               if (!ret || ret > len) {
-                       ret = -EIO;
-                       goto read_err;
-@@ -2791,6 +2795,7 @@ int spi_nor_scan(struct spi_nor *nor, co
-       struct device *dev = nor->dev;
-       struct mtd_info *mtd = &nor->mtd;
-       struct device_node *np = spi_nor_get_flash_node(nor);
-+      u32 val;
-       int ret;
-       int i;
-@@ -2803,6 +2808,9 @@ int spi_nor_scan(struct spi_nor *nor, co
-       nor->read_proto = SNOR_PROTO_1_1_1;
-       nor->write_proto = SNOR_PROTO_1_1_1;
-+      if (np && !of_property_read_u32(np, "m25p,chunked-io", &val))
-+              nor->chunk_size = val;
-+
-       if (name)
-               info = spi_nor_match_id(name);
-       /* Try to auto-detect if chip name wasn't specified or not found */
-@@ -2916,19 +2924,16 @@ int spi_nor_scan(struct spi_nor *nor, co
-       mtd->writebufsize = nor->page_size;
-       if (np) {
--              u32 val;
--
-               /* If we were instantiated by DT, use it */
-               if (of_property_read_bool(np, "m25p,fast-read"))
-                       params.hwcaps.mask |= SNOR_HWCAPS_READ_FAST;
-               else
-                       params.hwcaps.mask &= ~SNOR_HWCAPS_READ_FAST;
--              if (!of_property_read_u32(np, "m25p,chunked-io", &val)) {
--                      dev_info(dev, "using chunked io (size=%d)\n", val);
-+              if (nor->chunk_size) {
-+                      dev_info(dev, "using chunked io (size=%d)\n", nor->chunk_size);
-                       mtd->_read = spi_nor_chunked_read;
-                       mtd->_write = spi_nor_chunked_write;
--                      nor->chunk_size = val;
-               }
-       } else {
-               /* If we weren't instantiated by DT, default to fast-read */