[PATCH] rockchip: rk3399: pass platform parameter to TF-A by default

Quentin Schulz foss+uboot at 0leil.net
Mon Nov 14 18:37:45 CET 2022


From: Quentin Schulz <quentin.schulz at theobroma-systems.com>

Long are gone the times TF-A couldn't handle the FDT passed by U-Boot.
Specifically, since commit e7b586987c0a ("rockchip: don't crash if we
get an FDT we can't parse") in TF-A, failure to parse the FDT will use
the fallback mechanism. This patch was merged in TF-A v2.4-rc0 from two
years ago.

Therefore, let's finally pass the FDT to TF-A so that it can get the
serial configuration from U-Boot FDT instead of requiring the user to
patch TF-A hardcoded fallback values.

Cc: Quentin Schulz <foss+uboot at 0leil.net>
Signed-off-by: Quentin Schulz <quentin.schulz at theobroma-systems.com>
---
rockchip: rk3399: pass platform parameter to TF-A

Finally pass the FDT address to TF-A since it now gracefully fallbacks to
hardcoded defaults if it cannot parse it. This allows us to avoid modifying
hardcoded values in TF-A to enable the console.

This was tested with TF-A v2.7.0 on Puma Haikou RK3399.

To: Simon Glass <sjg at chromium.org>
To: Philipp Tomsich <philipp.tomsich at vrull.eu>
To: Kever Yang <kever.yang at rock-chips.com>
Cc: Hugh Cole-Baker <sigmaris at gmail.com>
Cc: Walter Lozano <walter.lozano at collabora.com>
Cc: u-boot at lists.denx.de
---
 arch/arm/mach-rockchip/Kconfig | 1 -
 1 file changed, 1 deletion(-)

diff --git a/arch/arm/mach-rockchip/Kconfig b/arch/arm/mach-rockchip/Kconfig
index 69d51ff378..2fcc23f9fa 100644
--- a/arch/arm/mach-rockchip/Kconfig
+++ b/arch/arm/mach-rockchip/Kconfig
@@ -249,7 +249,6 @@ config ROCKCHIP_RK3399
 	imply PRE_CONSOLE_BUFFER
 	imply ROCKCHIP_COMMON_BOARD
 	imply ROCKCHIP_SDRAM_COMMON
-	imply SPL_ATF_NO_PLATFORM_PARAM if SPL_ATF
 	imply SPL_ROCKCHIP_COMMON_BOARD
 	imply TPL_SERIAL
 	imply TPL_LIBCOMMON_SUPPORT

---
base-commit: 0cbeed4f6648e0e4966475e3544280a69ecb59d3
change-id: 20221114-rk3399-tf-a-plat-param-3ab055f40b9e

Best regards,
-- 
Quentin Schulz <quentin.schulz at theobroma-systems.com>


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