ramips: fix chunked-io support for big flash chips (#20504)
Signed-off-by: Felix Fietkau <nbd@openwrt.org> SVN-Revision: 46904
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1 changed files with 6 additions and 3 deletions
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@ -16,7 +16,7 @@
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u8 command[MAX_CMD_SIZE];
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};
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@@ -157,6 +159,58 @@ static int m25p80_read(struct spi_nor *n
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@@ -157,6 +159,61 @@ static int m25p80_read(struct spi_nor *n
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return 0;
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}
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@ -31,6 +31,9 @@
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+ if (!chunk_size)
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+ chunk_size = _len;
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+
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+ if (nor->addr_width > 3)
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+ chunk_size -= nor->addr_width - 3;
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+
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+ while (retlen < _len) {
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+ size_t len = min_t(int, chunk_size, _len - retlen);
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+ const u_char *buf = _buf + retlen;
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@ -75,7 +78,7 @@
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static int m25p80_erase(struct spi_nor *nor, loff_t offset)
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{
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struct m25p *flash = nor->priv;
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@@ -197,6 +251,7 @@ static int m25p_probe(struct spi_device
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@@ -197,6 +254,7 @@ static int m25p_probe(struct spi_device
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struct spi_nor *nor;
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enum read_mode mode = SPI_NOR_NORMAL;
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char *flash_name = NULL;
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@ -83,7 +86,7 @@
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int ret;
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data = dev_get_platdata(&spi->dev);
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@@ -244,6 +299,14 @@ static int m25p_probe(struct spi_device
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@@ -244,6 +302,14 @@ static int m25p_probe(struct spi_device
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if (ret)
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return ret;
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