forked from Openwrt-EcoNet/openwrt
546038c2ec
EcoNet EN75xx is a big endian MIPS platform used in XPON (fiber), DSL, and SIM (3g/4g) applications. Complete GPL vender SDKs exist for this platform, but are based on Linux 2.6. The bulk of this submission has already been accepted upstream: https://patchwork.kernel.org/project/linux-mips/list/?series=960479&state=* This platform uses a bootloader that is derived from old TrendChip code. This bootloader implements a frustratingly complex Bad Block Table which is implemented here in en75_bmt.c This BMT is not upstreamed because it depends on mtk_bmt framework which likewise is not upstreamed. This BMT system rewrites block indexes in flash and if the bootloader considers it to be corrupted, it will attempt to automatically rebuild on boot. So without implementing the algorithm, you can't safely use the disk at all. Signed-off-by: Caleb James DeLisle <cjd@cjdns.fr>
35 lines
808 B
Diff
35 lines
808 B
Diff
--- a/drivers/mtd/nand/spi/core.c
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+++ b/drivers/mtd/nand/spi/core.c
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@@ -19,6 +19,7 @@
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#include <linux/string.h>
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#include <linux/spi/spi.h>
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#include <linux/spi/spi-mem.h>
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+#include <linux/mtd/mtk_bmt.h>
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static int spinand_read_reg_op(struct spinand_device *spinand, u8 reg, u8 *val)
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{
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@@ -1347,6 +1348,7 @@ static int spinand_probe(struct spi_mem
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if (ret)
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return ret;
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+ mtk_bmt_attach(mtd);
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ret = mtd_device_register(mtd, NULL, 0);
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if (ret)
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goto err_spinand_cleanup;
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@@ -1354,6 +1356,7 @@ static int spinand_probe(struct spi_mem
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return 0;
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err_spinand_cleanup:
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+ mtk_bmt_detach(mtd);
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spinand_cleanup(spinand);
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return ret;
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@@ -1372,6 +1375,7 @@ static int spinand_remove(struct spi_mem
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if (ret)
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return ret;
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+ mtk_bmt_detach(mtd);
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spinand_cleanup(spinand);
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return 0;
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