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gemini: Fix up flash accesses 

The SL93512r and the NAS4220B have Redboot partition
tables (rely on these) and need to boot from mtdblock3.
Add two patches from upstream to fix this.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
master
Linus Walleij 2019-07-17 19:22:40 +02:00 committed by Hauke Mehrtens
parent 1eb851143a
commit 860d6ce0ce
2 changed files with 140 additions and 0 deletions
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104
target/linux/gemini/patches-4.19/0022-RM-dts-gemini-Switch-to-redboot-partition-parsing.patch Normal file
View File

@ -0,0 +1,104 @@
From cad2161e64aca9e1c94fd11b0d0f7b53c9e80de0 Mon Sep 17 00:00:00 2001
From: Linus Walleij <linus.walleij@linaro.org>
Date: Fri, 12 Jul 2019 22:57:11 +0200
Subject: [PATCH 1/2] ARM: dts: gemini: Switch to redboot partition parsing
This switches the kernel to parse the Redboot partitions
in the SL93512r and the NAS4220B properly using the
right compatible string instead of using hard-coded
partitions.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
arch/arm/boot/dts/gemini-nas4220b.dts | 35 +++------------------------
arch/arm/boot/dts/gemini-sl93512r.dts | 35 +++------------------------
2 files changed, 8 insertions(+), 62 deletions(-)
--- a/arch/arm/boot/dts/gemini-nas4220b.dts
+++ b/arch/arm/boot/dts/gemini-nas4220b.dts
@@ -81,37 +81,10 @@
/* 16MB of flash */
reg = <0x30000000 0x01000000>;
- partition@0 {
- label = "RedBoot";
- reg = <0x00000000 0x00020000>;
- read-only;
- };
- partition@20000 {
- label = "Kernel";
- reg = <0x00020000 0x00300000>;
- };
- partition@320000 {
- label = "Ramdisk";
- reg = <0x00320000 0x00600000>;
- };
- partition@920000 {
- label = "Application";
- reg = <0x00920000 0x00600000>;
- };
- partition@f20000 {
- label = "VCTL";
- reg = <0x00f20000 0x00020000>;
- read-only;
- };
- partition@f40000 {
- label = "CurConf";
- reg = <0x00f40000 0x000a0000>;
- read-only;
- };
- partition@fe0000 {
- label = "FIS directory";
- reg = <0x00fe0000 0x00020000>;
- read-only;
+ partitions {
+ compatible = "redboot-fis";
+ /* Eraseblock at 0xfe0000 */
+ fis-index-block = <0x1fc>;
};
};
--- a/arch/arm/boot/dts/gemini-sl93512r.dts
+++ b/arch/arm/boot/dts/gemini-sl93512r.dts
@@ -143,37 +143,10 @@
/* 16MB of flash */
reg = <0x30000000 0x01000000>;
- partition@0 {
- label = "BOOT";
- reg = <0x00000000 0x00020000>;
- read-only;
- };
- partition@120000 {
- label = "Kern";
- reg = <0x00020000 0x00300000>;
- };
- partition@320000 {
- label = "Ramdisk";
- reg = <0x00320000 0x00600000>;
- };
- partition@920000 {
- label = "Application";
- reg = <0x00920000 0x00600000>;
- };
- partition@f20000 {
- label = "VCTL";
- reg = <0x00f20000 0x00020000>;
- read-only;
- };
- partition@f40000 {
- label = "CurConf";
- reg = <0x00f40000 0x000a0000>;
- read-only;
- };
- partition@fe0000 {
- label = "FIS directory";
- reg = <0x00fe0000 0x00020000>;
- read-only;
+ partitions {
+ compatible = "redboot-fis";
+ /* Eraseblock at 0xfe0000 */
+ fis-index-block = <0x1fc>;
};
};

36
target/linux/gemini/patches-4.19/0023-ARM-dts-gemini-Mount-root-from-mtdblock3.patch Normal file
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@ -0,0 +1,36 @@
From b40cd2116ea0ba3584db12ab9dab7e02dd1e3333 Mon Sep 17 00:00:00 2001
From: Linus Walleij <linus.walleij@linaro.org>
Date: Fri, 12 Jul 2019 22:59:39 +0200
Subject: [PATCH 2/2] ARM: dts: gemini: Mount root from mtdblock3
The third mtdblock device named "Application" is where we
want to mount our root filesystem.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
arch/arm/boot/dts/gemini-nas4220b.dts | 2 +-
arch/arm/boot/dts/gemini-sl93512r.dts | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)
--- a/arch/arm/boot/dts/gemini-nas4220b.dts
+++ b/arch/arm/boot/dts/gemini-nas4220b.dts
@@ -20,7 +20,7 @@
};
chosen {
- bootargs = "console=ttyS0,19200n8";
+ bootargs = "console=ttyS0,19200n8 root=/dev/mtdblock3 rw rootfstype=squashfs,jffs2 rootwait";
stdout-path = &uart0;
};
--- a/arch/arm/boot/dts/gemini-sl93512r.dts
+++ b/arch/arm/boot/dts/gemini-sl93512r.dts
@@ -24,7 +24,7 @@
};
chosen {
- bootargs = "console=ttyS0,19200n8 root=/dev/sda1 rw rootwait";
+ bootargs = "console=ttyS0,19200n8 root=/dev/mtdblock3 rw rootfstype=squashfs,jffs2 rootwait";
stdout-path = &uart0;
};