openwrt/target/linux/bcm47xx/patches-5.15/107-v5.18-mtd-rawnand-brcmnand-BCMA-controller-uses-command-shift-of-0.patch
John Audia 89895937dd kernel: bump 5.15 to 5.15.133
Changelog: https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.133

Removed upstreamed:
	bcm47xx/patches-5.15/101-v5.18-mtd-rawnand-brcmnand-Allow-SoC-to-provide-I-O-operations.patch[1]

Cherry picked build fix.[2] All other patches automatically rebased.

1. https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=v5.15.133&id=56cf9f446b331414a15ef0e8dedf23583ec2c427
2. https://git.kernel.org/pub/scm/linux/kernel/git/stable/stable-queue.git/tree/queue-5.15/fix-up-backport-of-136191703038-interconnect-teach-l.patch

Build system: x86_64
Build-tested: ramips/tplink_archer-a6-v3
Run-tested: ramips/tplink_archer-a6-v3

Signed-off-by: John Audia <therealgraysky@proton.me>
2023-10-04 21:03:12 +02:00

30 lines
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Diff

From: Florian Fainelli <f.fainelli@gmail.com>
Subject: [PATCH v3 8/9] mtd: rawnand: brcmnand: BCMA controller uses command shift of 0
Date: Fri, 07 Jan 2022 10:46:13 -0800
Content-Type: text/plain; charset="utf-8"
For some odd and unexplained reason the BCMA NAND controller, albeit
revision 3.4 uses a command shift of 0 instead of 24 as it should be,
quirk that.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
---
drivers/mtd/nand/raw/brcmnand/brcmnand.c | 6 ++++++
1 file changed, 6 insertions(+)
--- a/drivers/mtd/nand/raw/brcmnand/brcmnand.c
+++ b/drivers/mtd/nand/raw/brcmnand/brcmnand.c
@@ -951,6 +951,12 @@ static void brcmnand_wr_corr_thresh(stru
static inline int brcmnand_cmd_shift(struct brcmnand_controller *ctrl)
{
+ /* Kludge for the BCMA-based NAND controller which does not actually
+ * shift the command
+ */
+ if (ctrl->nand_version == 0x0304 && brcmnand_non_mmio_ops(ctrl))
+ return 0;
+
if (ctrl->nand_version < 0x0602)
return 24;
return 0;