From 5f7828fcc274ec7c381298c92cf3a946182168a0 Mon Sep 17 00:00:00 2001 From: Christian Lamparter Date: Sun, 12 Jun 2022 11:48:01 +0200 Subject: apm821xx: MBL: make mtd chip work The MBL has a 512KiB Microchip SST39VF040 chip for uboot and not much else. Thanks to Ewald who figured out that the "jedec-probe" vs. "jedec-flash" was the wrong binding. With this information and the jedec-probe support enabled => the chip works. | physmap-flash 4fff80000.nor_flash: physmap platform flash device: [mem 0x4fff80000-0x4ffffffff] | Found: SST 39LF040 | 4fff80000.nor_flash: Found 1 x8 devices at 0x0 in 8-bit bank Suggested-by: Ewald Comhaire Signed-off-by: Christian Lamparter --- target/linux/apm821xx/dts/wd-mybooklive.dts | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) (limited to 'target/linux/apm821xx/dts') diff --git a/target/linux/apm821xx/dts/wd-mybooklive.dts b/target/linux/apm821xx/dts/wd-mybooklive.dts index 2cc4dd8b79..5fcddb0cd8 100644 --- a/target/linux/apm821xx/dts/wd-mybooklive.dts +++ b/target/linux/apm821xx/dts/wd-mybooklive.dts @@ -22,7 +22,7 @@ ebc { nor_flash@0,0 { status = "okay"; - compatible = "amd,s29gl512n", "jedec-probe", "cfi-flash", "mtd-rom"; + compatible = "microchip,sst39vf040", "jedec-flash"; bank-width = <1>; reg = <0x00000000 0x00000000 0x00080000>; #address-cells = <1>; @@ -32,16 +32,19 @@ /* Part of bootrom - Don't use it without a jump */ label = "free"; reg = <0x00000000 0x0001e000>; + read-only; }; partition@1e000 { label = "env"; reg = <0x0001e000 0x00002000>; + read-only; }; partition@20000 { label = "uboot"; reg = <0x00020000 0x00050000>; + read-only; }; }; }; -- cgit v1.2.3