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Temporary revert ODROID-N2 U-Boot to 2023.01 to fix eMMC issues (#3409)

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As we don't have proper solution for #3319 and #3351 yet, revert to
previous U-Boot which was proven working. This is intended as a
workaround but as there's nothing in the latest U-Boot that will be
really missed on N2, we can stay on the older version for the time
being.

This also means reverting the "40 MHz hack" back to the 24 MHz one.
Since this patch only applies to N2 (meson gx), it can stay along the
common hardkernel uboot patches.
This commit is contained in:
Jan Čermák 2024-06-11 19:02:40 +02:00 committed by GitHub
parent 26f0b5a9b7
commit 6d77355c1c
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GPG Key ID: B5690EEEBB952194
2 changed files with 9 additions and 12 deletions
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19
buildroot-external/board/hardkernel/patches/uboot/0001-HACK-mmc-meson-gx-limit-to-40MHz.patch → buildroot-external/board/hardkernel/patches/uboot/0001-HACK-mmc-meson-gx-limit-to-24MHz.patch
View File

@ -1,18 +1,15 @@
From 820e6f6e3745e988246a1acca4aaacdd759b778f Mon Sep 17 00:00:00 2001
From: Stefan Agner <stefan@agner.ch>
Date: Thu, 18 Apr 2024 18:01:54 +0200
Subject: [PATCH] HACK: mmc: meson-gx: limit to 40MHz
From 11f015e13ef0442b6d2bb734954291abde415f73 Mon Sep 17 00:00:00 2001
From: Neil Armstrong <narmstrong@baylibre.com>
Date: Mon, 2 Sep 2019 15:42:04 +0200
Subject: [PATCH] HACK: mmc: meson-gx: limit to 24MHz
This is the limit used by downstream U-Boot for ODROID-N2(+) (odroidg12
branch).
Signed-off-by: Stefan Agner <stefan@agner.ch>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
---
drivers/mmc/meson_gx_mmc.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/mmc/meson_gx_mmc.c b/drivers/mmc/meson_gx_mmc.c
index fcf4f03d1e..c578ac0f74 100644
index fcf4f03d1e..6ded4b619b 100644
--- a/drivers/mmc/meson_gx_mmc.c
+++ b/drivers/mmc/meson_gx_mmc.c
@@ -279,7 +279,7 @@ static int meson_mmc_probe(struct udevice *dev)
@ -20,10 +17,10 @@ index fcf4f03d1e..c578ac0f74 100644
MMC_MODE_HS_52MHz | MMC_MODE_HS;
cfg->f_min = DIV_ROUND_UP(SD_EMMC_CLKSRC_24M, CLK_MAX_DIV);
- cfg->f_max = 100000000; /* 100 MHz */
+ cfg->f_max = 40000000; /* 40 MHz */
+ cfg->f_max = SD_EMMC_CLKSRC_24M;
cfg->b_max = 511; /* max 512 - 1 blocks */
cfg->name = dev->name;
--
2.44.0
2.43.0

2
buildroot-external/configs/odroid_n2_defconfig
View File

@ -132,7 +132,7 @@ BR2_TARGET_ROOTFS_SQUASHFS4_LZ4=y
BR2_TARGET_UBOOT=y
BR2_TARGET_UBOOT_BUILD_SYSTEM_KCONFIG=y
BR2_TARGET_UBOOT_CUSTOM_VERSION=y
BR2_TARGET_UBOOT_CUSTOM_VERSION_VALUE="2024.01"
BR2_TARGET_UBOOT_CUSTOM_VERSION_VALUE="2023.01"
BR2_TARGET_UBOOT_BOARD_DEFCONFIG="odroid-n2"
BR2_TARGET_UBOOT_CONFIG_FRAGMENT_FILES="$(BR2_EXTERNAL_HASSOS_PATH)/bootloader/uboot.config $(BR2_EXTERNAL_HASSOS_PATH)/board/hardkernel/odroid-n2/uboot.config"
BR2_PACKAGE_HOST_DOSFSTOOLS=y