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| author | David Bauer <mail@david-bauer.net> | 2021-02-17 22:12:43 +0100 |
|---|---|---|
| committer | David Bauer <mail@david-bauer.net> | 2021-02-20 01:26:22 +0100 |
| commit | fb64e2c30f0cba887d3b183ce52de36b3e8bbb7e (patch) | |
| tree | 1cc7c1aba2fb05a97babb1f37969ca6c1355b319 | |
| parent | da55758cc58a2e6f0570eacd4bb9c2d4792572a6 (diff) | |
| download | openwrt-fb64e2c30f0cba887d3b183ce52de36b3e8bbb7e.tar.gz openwrt-fb64e2c30f0cba887d3b183ce52de36b3e8bbb7e.tar.bz2 openwrt-fb64e2c30f0cba887d3b183ce52de36b3e8bbb7e.zip | |
ath79: ar934x-nand: add kernel 5.10 compatibility
Adapt the driver to make it work with the NAND subsystem changes between
kernel 5.4 and 5.10.
Tested-on: Aerohive HiveAP121
Signed-off-by: David Bauer <mail@david-bauer.net>
| -rw-r--r-- | target/linux/ath79/files/drivers/mtd/nand/raw/ar934x_nand.c | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/target/linux/ath79/files/drivers/mtd/nand/raw/ar934x_nand.c b/target/linux/ath79/files/drivers/mtd/nand/raw/ar934x_nand.c index 5f0026b475..207bcd59ac 100644 --- a/target/linux/ath79/files/drivers/mtd/nand/raw/ar934x_nand.c +++ b/target/linux/ath79/files/drivers/mtd/nand/raw/ar934x_nand.c @@ -14,6 +14,9 @@ #include <linux/module.h> #include <linux/dma-mapping.h> #include <linux/mtd/mtd.h> +#if LINUX_VERSION_CODE >= KERNEL_VERSION(5,9,0) +#include <linux/mtd/nand.h> +#endif #include <linux/mtd/rawnand.h> #include <linux/mtd/partitions.h> #include <linux/platform_device.h> @@ -719,7 +722,11 @@ static void ar934x_nfc_cmdfunc(struct nand_chip *nand, unsigned int command, break; case NAND_CMD_PAGEPROG: +#if LINUX_VERSION_CODE >= KERNEL_VERSION(5,9,0) + if (nand->ecc.engine_type == NAND_ECC_ENGINE_TYPE_ON_HOST) { +#else if (nand->ecc.mode == NAND_ECC_HW) { +#endif /* the data is already written */ break; } @@ -1325,15 +1332,29 @@ static int ar934x_nfc_attach_chip(struct nand_chip *nand) if (ret) return ret; +#if LINUX_VERSION_CODE >= KERNEL_VERSION(5,9,0) + if (nand->ecc.engine_type == NAND_ECC_ENGINE_TYPE_ON_HOST) { +#else if (nand->ecc.mode == NAND_ECC_HW) { +#endif ret = ar934x_nfc_setup_hwecc(nfc); if (ret) return ret; +#if LINUX_VERSION_CODE >= KERNEL_VERSION(5,9,0) + } else if (nand->ecc.engine_type == NAND_ECC_ENGINE_TYPE_SOFT) { + dev_err(dev, "unknown ECC mode %d\n", nand->ecc.engine_type); +#else } else if (nand->ecc.mode != NAND_ECC_SOFT) { dev_err(dev, "unknown ECC mode %d\n", nand->ecc.mode); +#endif return -EINVAL; +#if LINUX_VERSION_CODE >= KERNEL_VERSION(5,9,0) + } else if ((nand->ecc.algo != NAND_ECC_ALGO_BCH) && + (nand->ecc.algo != NAND_ECC_ALGO_HAMMING)) { +#else } else if ((nand->ecc.algo != NAND_ECC_BCH) && (nand->ecc.algo != NAND_ECC_HAMMING)) { +#endif dev_err(dev, "unknown software ECC algo %d\n", nand->ecc.algo); return -EINVAL; } @@ -1422,7 +1443,11 @@ static int ar934x_nfc_probe(struct platform_device *pdev) nand->legacy.read_byte = ar934x_nfc_read_byte; nand->legacy.write_buf = ar934x_nfc_write_buf; nand->legacy.read_buf = ar934x_nfc_read_buf; +#if LINUX_VERSION_CODE >= KERNEL_VERSION(5,9,0) + nand->ecc.engine_type = NAND_ECC_ENGINE_TYPE_ON_HOST; /* default */ +#else nand->ecc.mode = NAND_ECC_HW; /* default */ +#endif nand->priv = nfc; platform_set_drvdata(pdev, nfc); @@ -1462,7 +1487,12 @@ static int ar934x_nfc_remove(struct platform_device *pdev) nfc = platform_get_drvdata(pdev); if (nfc) { +#if LINUX_VERSION_CODE >= KERNEL_VERSION(5,8,0) + mtd_device_unregister(nand_to_mtd(&nfc->nand_chip)); + nand_cleanup(&nfc->nand_chip); +#else nand_release(&nfc->nand_chip); +#endif ar934x_nfc_free_buf(nfc); } |