[PATCH 1/3] arch/arm/boards/avnet-zedboard/zedboard.zynqcfg: removed everything but stop instruction to fix barebox boot

[PATCH 1/3] arch/arm/boards/avnet-zedboard/zedboard.zynqcfg: removed everything but stop instruction to fix barebox boot

[Gwenhael Goavec-Merou]

From: Gwenhael Goavec-Merou <gwenhael.goavec-merou@trabucayre.com>

As mentionned in [1,2] sequence present in arch/arm/boards/avnet-zedboard/zedboard.zynqcfg
causes boot failure without any messages.

This patch removes all instructions but the last one allowing to have
access to the barebox prompt

[1] https://lore.barebox.org/barebox/VI1PR02MB4429606E3B06D0F53D2B4175AB4DA@VI1PR02MB4429.eurprd02.prod.outlook.com/T/#m5fa4fe7832215a7e8160ef6fbd3d122dd58b0a92
[2] https://lore.barebox.org/barebox/VI1PR02MB4429606E3B06D0F53D2B4175AB4DA@VI1PR02MB4429.eurprd02.prod.outlook.com/T/#m5fa4fe7832215a7e8160ef6fbd3d122dd58b0a92

Signed-off-by: Gwenhael Goavec-Merou <gwenhael.goavec-merou@trabucayre.com>
---
 .../boards/avnet-zedboard/zedboard.zynqcfg    | 20 -------------------
 1 file changed, 20 deletions(-)

diff --git a/arch/arm/boards/avnet-zedboard/zedboard.zynqcfg b/arch/arm/boards/avnet-zedboard/zedboard.zynqcfg
index c6a96aec7b..8e68bbf618 100644
--- a/arch/arm/boards/avnet-zedboard/zedboard.zynqcfg
+++ b/arch/arm/boards/avnet-zedboard/zedboard.zynqcfg
@@ -1,24 +1,4 @@
 #include <zynq/zynq7000-header-regs.h>
 
-wm 32 ZYNQ_SLCR_UNLOCK		0x0000DF0D
-wm 32 ZYNQ_CLK_621_TRUE		0x00000001
-wm 32 ZYNQ_APER_CLK_CTRL	0x01FC044D
-
-wm 32 ZYNQ_ARM_PLL_CTRL		0x00028008
-wm 32 ZYNQ_ARM_PLL_CFG		0x000FA220
-wm 32 ZYNQ_ARM_PLL_CTRL		0x00028010
-wm 32 ZYNQ_ARM_PLL_CTRL		0x00028011
-wm 32 ZYNQ_ARM_PLL_CTRL		0x00028010
-wm 32 ZYNQ_ARM_PLL_CTRL		0x00028000
-
-wm 32 ZYNQ_IO_PLL_CTRL		0x0001E008
-wm 32 ZYNQ_IO_PLL_CFG		0x001452C0
-wm 32 ZYNQ_IO_PLL_CTRL		0x0001E010
-wm 32 ZYNQ_IO_PLL_CTRL		0x0001E011
-wm 32 ZYNQ_IO_PLL_CTRL		0x0001E010
-wm 32 ZYNQ_IO_PLL_CTRL		0x0001E000
-
-wm 32 ZYNQ_SDIO_CLK_CTRL	0x00000a03
-
 /* stop */
 wm 32 0xFFFFFFFF			0x00000000
-- 
2.47.2

[PATCH 2/3] arch/arm/boards/avnet-zedboard/lowlevel.c: added SDIO clk frequency configuration

[Gwenhael Goavec-Merou]

From: Gwenhael Goavec-Merou <gwenhael.goavec-merou@trabucayre.com>

As mentionned in [1] MMC sometime fails to be initialized/ is not
working with this type of error:

arasan-sdhci e0100000.mmc@e0100000.of: registered as mmc0
malloc space: 0x17e00000 -> 0x1fdfffff (size 128 MiB)
arasan-sdhci e0100000.mmc@e0100000.of: error while transferring data for command 6
arasan-sdhci e0100000.mmc@e0100000.of: state = 0x01ff0202 , interrupt = 0x00208000
mmc0: Card's startup fails with -74
barebox-environment chosen:environment-sd.of: probe failed: No such file or directory
environment load /dev/env0: No such file or directory

This patch adds SDIO clck configuration allowing to have a valid MMC
clock frequency.

[1] https://lore.barebox.org/barebox/VI1PR02MB4429606E3B06D0F53D2B4175AB4DA@VI1PR02MB4429.eurprd02.prod.outlook.com/T/#m1cb8598da4741c0b7a41944e1aecef373dd74319

Signed-off-by: Gwenhael Goavec-Merou <gwenhael.goavec-merou@trabucayre.com>
---
 arch/arm/boards/avnet-zedboard/lowlevel.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm/boards/avnet-zedboard/lowlevel.c b/arch/arm/boards/avnet-zedboard/lowlevel.c
index 605aab783a..b7a98f5a82 100644
--- a/arch/arm/boards/avnet-zedboard/lowlevel.c
+++ b/arch/arm/boards/avnet-zedboard/lowlevel.c
@@ -241,6 +241,7 @@ static void avnet_zedboard_ps7_init(void)
 	/* poor mans clkctrl */
 	writel(0x00001403, ZYNQ_CLOCK_CTRL_BASE + ZYNQ_UART_CLK_CTRL);
 	writel(0x00000101, ZYNQ_CLOCK_CTRL_BASE + ZYNQ_LQSPI_CLK_CTRL);
+	writel(0x00001401, ZYNQ_CLOCK_CTRL_BASE + ZYNQ_SDIO_CLK_CTRL);
 
 	/* GEM0 */
 	writel(0x00000001, 0xf8000138);
-- 
2.47.2

[PATCH 3/3] arch/arm/boards/avnet-zedboard/env/nv/linux.bootargs.console: fixed console name

[Gwenhael Goavec-Merou]

From: Gwenhael Goavec-Merou <gwenhael.goavec-merou@trabucayre.com>

When trying to boot Linux no output from Linux is printed in the
console. Linux devicetree only enables one UART (connected to USB<->UART
interface) and has specified in Linux devicetree this one is called
ttyPS0 instead of ttyPS1.
This patch changes console name.

Signed-off-by: Gwenhael Goavec-Merou <gwenhael.goavec-merou@trabucayre.com>
---
 arch/arm/boards/avnet-zedboard/env/nv/linux.bootargs.console | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/boards/avnet-zedboard/env/nv/linux.bootargs.console b/arch/arm/boards/avnet-zedboard/env/nv/linux.bootargs.console
index 6c9f9dabcf..ebb44efc48 100644
--- a/arch/arm/boards/avnet-zedboard/env/nv/linux.bootargs.console
+++ b/arch/arm/boards/avnet-zedboard/env/nv/linux.bootargs.console
@@ -1 +1 @@
-console=ttyPS1,115200
+console=ttyPS0,115200
-- 
2.47.2