diff options
Diffstat (limited to 'target/linux/bcm53xx/patches-4.4/140-mtd-brcmnand-set-initial-ECC-params-based-on-info-fr.patch')
| -rw-r--r-- | target/linux/bcm53xx/patches-4.4/140-mtd-brcmnand-set-initial-ECC-params-based-on-info-fr.patch | 53 |
1 files changed, 0 insertions, 53 deletions
diff --git a/target/linux/bcm53xx/patches-4.4/140-mtd-brcmnand-set-initial-ECC-params-based-on-info-fr.patch b/target/linux/bcm53xx/patches-4.4/140-mtd-brcmnand-set-initial-ECC-params-based-on-info-fr.patch deleted file mode 100644 index 4eba839d91..0000000000 --- a/target/linux/bcm53xx/patches-4.4/140-mtd-brcmnand-set-initial-ECC-params-based-on-info-fr.patch +++ /dev/null @@ -1,53 +0,0 @@ -From eff78bc2c385f592294278582f38ad5fa4ed2b34 Mon Sep 17 00:00:00 2001 -From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <zajec5@gmail.com> -Date: Wed, 27 Jan 2016 08:47:03 +0100 -Subject: [PATCH] mtd: brcmnand: set initial ECC params based on info from HW -MIME-Version: 1.0 -Content-Type: text/plain; charset=UTF-8 -Content-Transfer-Encoding: 8bit - -So far we were depending on nand_dt_init getting ECC info from DT and -setting it in ECC struct. It is possible to simply read this info from -hardware registers which makes adding support for new hardware way -easier (no more guessing & trying all combinations). -Please note it still gives a precedence to DT which was overwrite -whatever was initially set by the driver. - -Signed-off-by: Rafał Miłecki <zajec5@gmail.com> ---- -It took me hours to figure out how to setup NAND on my D-Link DIR-885L. -This should be very helpful for ppl adding new devices support. ---- - drivers/mtd/nand/brcmnand/brcmnand.c | 14 ++++++++++++++ - 1 file changed, 14 insertions(+) - ---- a/drivers/mtd/nand/brcmnand/brcmnand.c -+++ b/drivers/mtd/nand/brcmnand/brcmnand.c -@@ -645,6 +645,17 @@ static inline u32 brcmnand_ecc_level_mas - return mask << NAND_ACC_CONTROL_ECC_SHIFT; - } - -+static int brcmnand_get_ecc_strength(struct brcmnand_host *host) -+{ -+ struct brcmnand_controller *ctrl = host->ctrl; -+ u32 mask = brcmnand_ecc_level_mask(ctrl); -+ u16 acc_control_offs = brcmnand_cs_offset(ctrl, host->cs, -+ BRCMNAND_CS_ACC_CONTROL); -+ -+ return (nand_readreg(ctrl, acc_control_offs) & mask) >> -+ NAND_ACC_CONTROL_ECC_SHIFT; -+} -+ - static void brcmnand_set_ecc_enabled(struct brcmnand_host *host, int en) - { - struct brcmnand_controller *ctrl = host->ctrl; -@@ -1990,6 +2001,9 @@ static int brcmnand_init_cs(struct brcmn - nand_writereg(ctrl, cfg_offs, - nand_readreg(ctrl, cfg_offs) & ~CFG_BUS_WIDTH); - -+ chip->ecc.strength = brcmnand_get_ecc_strength(host); -+ chip->ecc.size = brcmnand_get_sector_size_1k(host) ? 1024 : 512; -+ - if (nand_scan_ident(mtd, 1, NULL)) - return -ENXIO; - |