ralink: bump to v3.18
authorJohn Crispin <john@openwrt.org>
Thu, 19 Feb 2015 14:04:47 +0000 (14:04 +0000)
committerJohn Crispin <john@openwrt.org>
Thu, 19 Feb 2015 14:04:47 +0000 (14:04 +0000)
Signed-off-by: John Crispin <blogic@openwrt.org>
SVN-Revision: 44495

target/linux/ramips/Makefile
target/linux/ramips/patches-3.18/0044-mtd-add-chunked-read-io-to-m25p80.patch [new file with mode: 0644]

index 95577d4..5c7a382 100644 (file)
@@ -13,7 +13,7 @@ SUBTARGETS:=rt305x mt7620 mt7621 mt7628 rt3883 rt288x
 FEATURES:=squashfs gpio
 MAINTAINER:=John Crispin <blogic@openwrt.org>
 
-KERNEL_PATCHVER:=3.14
+KERNEL_PATCHVER:=3.18
 
 include $(INCLUDE_DIR)/target.mk
 DEFAULT_PACKAGES += \
diff --git a/target/linux/ramips/patches-3.18/0044-mtd-add-chunked-read-io-to-m25p80.patch b/target/linux/ramips/patches-3.18/0044-mtd-add-chunked-read-io-to-m25p80.patch
new file mode 100644 (file)
index 0000000..b014c3e
--- /dev/null
@@ -0,0 +1,100 @@
+--- a/drivers/mtd/devices/m25p80.c
++++ b/drivers/mtd/devices/m25p80.c
+@@ -19,6 +19,7 @@
+ #include <linux/errno.h>
+ #include <linux/module.h>
+ #include <linux/device.h>
++#include <linux/of.h>
+ #include <linux/mtd/mtd.h>
+ #include <linux/mtd/partitions.h>
+@@ -32,6 +33,7 @@
+       struct spi_device       *spi;
+       struct spi_nor          spi_nor;
+       struct mtd_info         mtd;
++      u16                     chunk_size;
+       u8                      command[MAX_CMD_SIZE];
+ };
+@@ -157,6 +159,58 @@
+       return 0;
+ }
++static void m25p80_chunked_write(struct spi_nor *nor, loff_t _from, size_t _len,
++                      size_t *_retlen, const u_char *_buf)
++{
++      struct m25p *flash = nor->priv;
++      int chunk_size;
++      int retlen = 0;
++
++      chunk_size = flash->chunk_size;
++      if (!chunk_size)
++              chunk_size = _len;
++
++      while (retlen < _len) {
++              size_t len = min_t(int, chunk_size, _len - retlen);
++              const u_char *buf = _buf + retlen;
++              loff_t from = _from + retlen;
++
++              nor->wait_till_ready(nor);
++              nor->write_reg(nor, SPINOR_OP_WREN, NULL, 0, 0);
++
++              m25p80_write(nor, from, len, &retlen, buf);
++      }
++      *_retlen += retlen;
++}
++
++static int m25p80_chunked_read(struct spi_nor *nor, loff_t _from, size_t _len,
++                      size_t *_retlen, u_char *_buf)
++{
++      struct m25p *flash = nor->priv;
++      int chunk_size;
++
++      chunk_size = flash->chunk_size;
++      if (!chunk_size)
++              chunk_size = _len;
++
++      *_retlen = 0;
++
++      while (*_retlen < _len) {
++              size_t len = min_t(int, chunk_size, _len - *_retlen);
++              u_char *buf = _buf + *_retlen;
++              loff_t from = _from + *_retlen;
++              int retlen = 0;
++              int ret = m25p80_read(nor, from, len, &retlen, buf);
++
++              if (ret)
++                      return ret;
++
++              *_retlen += retlen;
++      }
++
++      return 0;
++}
++
+ static int m25p80_erase(struct spi_nor *nor, loff_t offset)
+ {
+       struct m25p *flash = nor->priv;
+@@ -197,6 +251,7 @@
+       struct spi_nor *nor;
+       enum read_mode mode = SPI_NOR_NORMAL;
+       char *flash_name = NULL;
++      u32 val;
+       int ret;
+       data = dev_get_platdata(&spi->dev);
+@@ -244,6 +299,14 @@
+       if (ret)
+               return ret;
++      if (spi->dev.of_node &&
++          !of_property_read_u32(spi->dev.of_node, "m25p,chunked-io", &val)) {
++              dev_warn(&spi->dev, "using chunked io\n");
++              nor->read = m25p80_chunked_read;
++              nor->write = m25p80_chunked_write;
++              flash->chunk_size = val;
++      }
++
+       ppdata.of_node = spi->dev.of_node;
+       return mtd_device_parse_register(&flash->mtd, NULL, &ppdata,