e44d1e17da
This is the remainder of kernel patches for the v4.19 kernel. A whole slew of the previous patch stack is now upstream, so this mainly contains the stuff that was added upstream between v4.19 and v5.0-rc1, and then the USB FOTG201 patches from Hans. Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
72 lines
2.3 KiB
Diff
72 lines
2.3 KiB
Diff
From 0f6c4817471faf572b5273cdf90160790b0c3b29 Mon Sep 17 00:00:00 2001
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From: Linus Walleij <linus.walleij@linaro.org>
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Date: Thu, 17 May 2018 17:00:10 +0200
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Subject: [PATCH 07/18] ARM: dts: Fix up the D-Link DIR-685 MTD partition info
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The vendor firmware was analyzed to get the right idea about
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this flash layout. /proc/mtd contains:
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dev: size erasesize name
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mtd0: 01e7ff40 00020000 "rootfs"
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mtd1: 01f40000 00020000 "upgrade"
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mtd2: 00040000 00020000 "rgdb"
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mtd3: 00020000 00020000 "nvram"
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mtd4: 00040000 00020000 "RedBoot"
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mtd5: 00020000 00020000 "LangPack"
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mtd6: 02000000 00020000 "flash"
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Here "flash" is obviously the whole device and we know "rootfs"
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is a bogus hack to point to a squashfs rootfs inside of the main
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"upgrade partition". We know "RedBoot" is the first 0x40000 of
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the flash and the "upgrade" partition follows from 0x40000 to
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0x1f8000. So we have mtd0, 1, 4 and 6 covered.
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Remains:
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mtd2: 00040000 00020000 "rgdb"
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mtd3: 00020000 00020000 "nvram"
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mtd5: 00020000 00020000 "LangPack"
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Inspecting the flash at 0x1f8000 and 0x1fa000 reveals each of
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these starting with "RGCFG1" so we assume 0x1f8000-1fbfff is
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"rgdb" of 0x40000.
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Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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---
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arch/arm/boot/dts/gemini-dlink-dir-685.dts | 16 ++++++----------
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1 file changed, 6 insertions(+), 10 deletions(-)
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diff --git a/arch/arm/boot/dts/gemini-dlink-dir-685.dts b/arch/arm/boot/dts/gemini-dlink-dir-685.dts
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index 6f258b50eb44..502a361d1fe9 100644
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--- a/arch/arm/boot/dts/gemini-dlink-dir-685.dts
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+++ b/arch/arm/boot/dts/gemini-dlink-dir-685.dts
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@@ -274,20 +274,16 @@
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read-only;
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};
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/*
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- * Between the boot loader and the rootfs is the kernel
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- * in a custom Storlink format flashed from the boot
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- * menu. The rootfs is in squashfs format.
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+ * This firmware image contains the kernel catenated
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+ * with the squashfs root filesystem. For some reason
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+ * this is called "upgrade" on the vendor system.
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*/
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- partition@1800c0 {
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- label = "rootfs";
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- reg = <0x001800c0 0x01dbff40>;
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- read-only;
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- };
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- partition@1f40000 {
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+ partition@40000 {
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label = "upgrade";
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- reg = <0x01f40000 0x00040000>;
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+ reg = <0x00040000 0x01f40000>;
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read-only;
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};
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+ /* RGDB, Residental Gateway Database? */
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partition@1f80000 {
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label = "rgdb";
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reg = <0x01f80000 0x00040000>;
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--
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2.19.2
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