From 6df4426245be87148d6aa75859951cb6351eb24c Mon Sep 17 00:00:00 2001 From: John Crispin Date: Thu, 10 Dec 2015 19:06:32 +0000 Subject: ralink: bump to the target to v4.3 Signed-off-by: John Crispin SVN-Revision: 47831 --- .../0044-mtd-add-chunked-read-io-to-m25p80.patch | 154 --------------------- 1 file changed, 154 deletions(-) delete mode 100644 target/linux/ramips/patches-3.18/0044-mtd-add-chunked-read-io-to-m25p80.patch (limited to 'target/linux/ramips/patches-3.18/0044-mtd-add-chunked-read-io-to-m25p80.patch') 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 deleted file mode 100644 index 2e81e456d3..0000000000 --- a/target/linux/ramips/patches-3.18/0044-mtd-add-chunked-read-io-to-m25p80.patch +++ /dev/null @@ -1,154 +0,0 @@ ---- a/drivers/mtd/devices/m25p80.c -+++ b/drivers/mtd/devices/m25p80.c -@@ -19,6 +19,7 @@ - #include - #include - #include -+#include - - #include - #include -@@ -32,6 +33,7 @@ struct m25p { - struct spi_device *spi; - struct spi_nor spi_nor; - struct mtd_info mtd; -+ u16 chunk_size; - u8 command[MAX_CMD_SIZE]; - }; - -@@ -117,25 +119,14 @@ static inline unsigned int m25p80_rx_nbi - } - } - --/* -- * Read an address range from the nor chip. The address range -- * may be any size provided it is within the physical boundaries. -- */ --static int m25p80_read(struct spi_nor *nor, loff_t from, size_t len, -- size_t *retlen, u_char *buf) -+static int __m25p80_read(struct spi_nor *nor, loff_t from, size_t len, -+ size_t *retlen, u_char *buf) - { - struct m25p *flash = nor->priv; - struct spi_device *spi = flash->spi; - struct spi_transfer t[2]; - struct spi_message m; - int dummy = nor->read_dummy; -- int ret; -- -- /* Wait till previous write/erase is done. */ -- ret = nor->wait_till_ready(nor); -- if (ret) -- return ret; -- - spi_message_init(&m); - memset(t, 0, (sizeof t)); - -@@ -156,6 +147,84 @@ static int m25p80_read(struct spi_nor *n - *retlen = m.actual_length - m25p_cmdsz(nor) - dummy; - return 0; - } -+/* -+ * Read an address range from the nor chip. The address range -+ * may be any size provided it is within the physical boundaries. -+ */ -+static int m25p80_read(struct spi_nor *nor, loff_t from, size_t len, -+ size_t *retlen, u_char *buf) -+{ -+ int ret; -+ -+ /* Wait till previous write/erase is done. */ -+ ret = nor->wait_till_ready(nor); -+ if (ret) -+ return ret; -+ -+ return __m25p80_read(nor, from, len, retlen, buf); -+} -+ -+ -+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; -+ -+ if (nor->addr_width > 3) -+ chunk_size -= nor->addr_width - 3; -+ -+ 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; -+ int ret; -+ -+ /* Wait till previous write/erase is done. */ -+ ret = nor->wait_till_ready(nor); -+ if (ret) -+ return ret; -+ -+ 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) - { -@@ -197,6 +266,7 @@ static int m25p_probe(struct spi_device - 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 +314,14 @@ static int m25p_probe(struct spi_device - 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, -- cgit v1.2.3