[Buildroot] [git commit branch/2022.02.x] configs/zynqmp_zcu106_defconfig: uboot dp pll patch

[Peter Korsgaard]

commit: https://git.buildroot.net/buildroot/commit/?id=2aafb4974d833fceab31b5e2a7133427718515d9
branch: https://git.buildroot.net/buildroot/commit/?id=refs/heads/2022.02.x

This patch fixes the DP audio and video PLL configurations for the
zynqmp-zcu106-revA evaluation board.

The Linux DP driver expects the DP to be using the following PLL config:
  - DP video PLL should use the VPLL (0x0)
  - DP audio PLL should use the RPLL (0x3)

Register 0xFD1A0070 configures the DP video PLL.
Register 0xFD1A0074 configures the DP audio PLL.

This patch was build and run tested on a zynqmp-zcu106-revA target board.

Upstream-Status: submitted (https://lore.kernel.org/all/62538b4a04dee28a6fc8ac5b85f8c845a5a76aa4.1651740988.git.michal.simek@amd.com/)
This patch will be removed from buildroot in a future release when no longer necessary.

Signed-off-by: Neal Frager <neal.frager at amd.com>
Signed-off-by: Peter Korsgaard <peter at korsgaard.com>
(cherry picked from commit 81253000885b3eaa2f521a998463c119a1c989ba)
Signed-off-by: Peter Korsgaard <peter at korsgaard.com>
---
 ...p-zynqmp-zcu102-revA-Fix-DP-PLL-configura.patch | 40 ++++++++++++++++++++++
 configs/zynqmp_zcu106_defconfig                    |  1 +
 2 files changed, 41 insertions(+)

diff --git a/board/zynqmp/zcu106/patches/uboot/0001-arm64-zynqmp-zynqmp-zcu102-revA-Fix-DP-PLL-configura.patch b/board/zynqmp/zcu106/patches/uboot/0001-arm64-zynqmp-zynqmp-zcu102-revA-Fix-DP-PLL-configura.patch
new file mode 100644
index 0000000000..4281880da0
--- /dev/null
+++ b/board/zynqmp/zcu106/patches/uboot/0001-arm64-zynqmp-zynqmp-zcu102-revA-Fix-DP-PLL-configura.patch
@@ -0,0 +1,40 @@
+From aaaa10b613165b7790fe1c084de007240b5bd77a Mon Sep 17 00:00:00 2001
+From: Neal Frager <neal.frager at amd.com>
+Date: Thu, 5 May 2022 13:34:43 +0100
+Subject: [PATCH 1/1] arm64: zynqmp: zynqmp-zcu102-revA: Fix DP PLL
+ configuration
+
+This patch fixes the DP audio and video PLL configurations
+for the zynqmp-zcu106-revA evaluation board
+
+The Linux DP driver expects the DP to be using the following PLL config:
+  - DP video PLL should use the VPLL (0x0)
+  - DP audio PLL should use the RPLL (0x3)
+
+Register 0xFD1A0070 configures the DP video PLL.
+Register 0xFD1A0074 configures the DP audio PLL.
+
+Signed-off-by: Neal Frager <neal.frager at amd.com>
+Signed-off-by: Michal Simek <michal.simek at amd.com>
+---
+ board/xilinx/zynqmp/zynqmp-zcu106-revA/psu_init_gpl.c | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+diff --git a/board/xilinx/zynqmp/zynqmp-zcu106-revA/psu_init_gpl.c b/board/xilinx/zynqmp/zynqmp-zcu106-revA/psu_init_gpl.c
+index 15f0be1a43..cbc436289f 100644
+--- a/board/xilinx/zynqmp/zynqmp-zcu106-revA/psu_init_gpl.c
++++ b/board/xilinx/zynqmp/zynqmp-zcu106-revA/psu_init_gpl.c
+@@ -81,8 +81,8 @@ static unsigned long psu_clock_init_data(void)
+ 	psu_mask_write(0xFF5E0104, 0x00000007U, 0x00000000U);
+ 	psu_mask_write(0xFF5E0128, 0x01003F07U, 0x01000F00U);
+ 	psu_mask_write(0xFD1A00A0, 0x01003F07U, 0x01000200U);
+-	psu_mask_write(0xFD1A0070, 0x013F3F07U, 0x01010203U);
+-	psu_mask_write(0xFD1A0074, 0x013F3F07U, 0x01013C00U);
++	psu_mask_write(0xFD1A0070, 0x013F3F07U, 0x01010500U);
++	psu_mask_write(0xFD1A0074, 0x013F3F07U, 0x01013C03U);
+ 	psu_mask_write(0xFD1A007C, 0x013F3F07U, 0x01011303U);
+ 	psu_mask_write(0xFD1A0060, 0x03003F07U, 0x03000100U);
+ 	psu_mask_write(0xFD1A0068, 0x01003F07U, 0x01000200U);
+-- 
+2.17.1
+
diff --git a/configs/zynqmp_zcu106_defconfig b/configs/zynqmp_zcu106_defconfig
index 27967fc0bd..e1ea27a496 100644
--- a/configs/zynqmp_zcu106_defconfig
+++ b/configs/zynqmp_zcu106_defconfig
@@ -35,3 +35,4 @@ BR2_TARGET_UBOOT_NEEDS_ATF_BL31=y
 BR2_PACKAGE_HOST_DOSFSTOOLS=y
 BR2_PACKAGE_HOST_GENIMAGE=y
 BR2_PACKAGE_HOST_MTOOLS=y
+BR2_GLOBAL_PATCH_DIR="board/zynqmp/zcu106/patches"