[PATCH v3 1/1] arm64: zynqmp: Enable usb3 for k24 som

[Neal Frager]

This patch corrects the mio and pll configuration registers for using usb3
on the kd240 starter kit.  Without this patch, the usb3 to sd card bridge does
not initialize correctly and u-boot is unable to find the OS located on the
kd240 starter kit sd card.

In addition, this patch correctly configures mio76 and mio77 as gpio pins
which are used as reset gpio pins on the kd240 starter kit.

Signed-off-by: Neal Frager <neal.frager at amd.com>
---
V1->V2:
 - rebased patch to latest u-boot master branch
 - improved git commit message
V2->V3:
 - removed unnecessary serdes initialization from patch
---
 .../zynqmp/zynqmp-sm-k24-revA/psu_init_gpl.c  | 23 ++++++++-----------
 1 file changed, 10 insertions(+), 13 deletions(-)

diff --git a/board/xilinx/zynqmp/zynqmp-sm-k24-revA/psu_init_gpl.c b/board/xilinx/zynqmp/zynqmp-sm-k24-revA/psu_init_gpl.c
index 166e61431b..274203ffaa 100644
--- a/board/xilinx/zynqmp/zynqmp-sm-k24-revA/psu_init_gpl.c
+++ b/board/xilinx/zynqmp/zynqmp-sm-k24-revA/psu_init_gpl.c
@@ -528,8 +528,8 @@ static unsigned long psu_mio_init_data(void)
 	psu_mask_write(0xFF180124, 0x000000FEU, 0x00000002U);
 	psu_mask_write(0xFF180128, 0x000000FEU, 0x00000002U);
 	psu_mask_write(0xFF18012C, 0x000000FEU, 0x00000002U);
-	psu_mask_write(0xFF180130, 0x000000FEU, 0x000000C0U);
-	psu_mask_write(0xFF180134, 0x000000FEU, 0x000000C0U);
+	psu_mask_write(0xFF180130, 0x000000FEU, 0x00000000U);
+	psu_mask_write(0xFF180134, 0x000000FEU, 0x00000000U);
 	psu_mask_write(0xFF180204, 0xFFFFFFFFU, 0x50000000U);
 	psu_mask_write(0xFF180208, 0xFFFFFFFFU, 0x00B02020U);
 	psu_mask_write(0xFF18020C, 0x00003FFFU, 0x00000FC0U);
@@ -569,21 +569,16 @@ static unsigned long psu_peripherals_init_data(void)
 	psu_mask_write(0xFD1A0100, 0x0001807CU, 0x00000000U);
 	psu_mask_write(0xFF5E0238, 0x001A0000U, 0x00000000U);
 	psu_mask_write(0xFF5E023C, 0x0093C018U, 0x00000000U);
-	psu_mask_write(0xFF5E0230, 0x00000008U, 0x00000000U);
+	psu_mask_write(0xFF5E0230, 0x00000002U, 0x00000000U);
 	psu_mask_write(0xFF5E0238, 0x00000001U, 0x00000000U);
 	psu_mask_write(0xFF180390, 0x00000004U, 0x00000004U);
 	psu_mask_write(0xFF5E023C, 0x00000400U, 0x00000000U);
-	psu_mask_write(0xFF5E0238, 0x00000040U, 0x00000000U);
-	psu_mask_write(0xFF180310, 0x00008000U, 0x00000000U);
-	psu_mask_write(0xFF180320, 0x33840000U, 0x02840000U);
-	psu_mask_write(0xFF18031C, 0x7FFE0000U, 0x64500000U);
-	psu_mask_write(0xFF180358, 0x00000008U, 0x00000008U);
-	psu_mask_write(0xFF180324, 0x03C00000U, 0x00000000U);
+	psu_mask_write(0xFF5E0238, 0x00000080U, 0x00000000U);
 	psu_mask_write(0xFF5E0238, 0x00000400U, 0x00000000U);
 	psu_mask_write(0xFF5E0238, 0x00008000U, 0x00000000U);
 	psu_mask_write(0xFF5E0238, 0x00000010U, 0x00000000U);
 	psu_mask_write(0xFF5E0238, 0x00007800U, 0x00000000U);
-	psu_mask_write(0xFF5E0238, 0x00000004U, 0x00000000U);
+	psu_mask_write(0xFF5E0238, 0x00000006U, 0x00000000U);
 	psu_mask_write(0xFF5E0238, 0x00040000U, 0x00000000U);
 	psu_mask_write(0xFF4B0024, 0x000000FFU, 0x000000FFU);
 	psu_mask_write(0xFFCA5000, 0x00001FFFU, 0x00000000U);
@@ -591,13 +586,15 @@ static unsigned long psu_peripherals_init_data(void)
 	psu_mask_write(0xFFA60040, 0x80000000U, 0x80000000U);
 	psu_mask_write(0xFF260020, 0xFFFFFFFFU, 0x05F5DD18U);
 	psu_mask_write(0xFF260000, 0x00000001U, 0x00000001U);
-	psu_mask_write(0xFF5E0250, 0x00000F0FU, 0x00000202U);
+	psu_mask_write(0xFF0A0284, 0x03FFFFFFU, 0x01000000U);
+	psu_mask_write(0xFF0A0288, 0x03FFFFFFU, 0x01000000U);
+	psu_mask_write(0xFF0A0014, 0x03FF03FFU, 0x02FF0100U);
 
 	mask_delay(1);
-	psu_mask_write(0xFF5E0250, 0x00000F0FU, 0x00000002U);
+	psu_mask_write(0xFF0A0014, 0x03FF03FFU, 0x02FF0000U);
 
 	mask_delay(5);
-	psu_mask_write(0xFF5E0250, 0x00000F0FU, 0x00000202U);
+	psu_mask_write(0xFF0A0014, 0x03FF03FFU, 0x02FF0100U);
 
 	return 1;
 }
-- 
2.25.1