4db53c3848
This patch changes the U-Boot's default environment to boot Zedboard out-of-the-box from SD card. The sdboot procedure tries to load a file system.bit into the Zynq's PL (only if it exists). It is also possible to alter the booting by an uEnv.txt file located on your SD card. The uEnv.txt is a plain text file with <key>=<value> pairs one per line. Signed-off-by: Jan Viktorin <viktorin@rehivetech.com> Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
47 lines
1.9 KiB
Diff
47 lines
1.9 KiB
Diff
From a4c0058967a551385da5e16d2787d9f704cab225 Mon Sep 17 00:00:00 2001
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From: Jan Viktorin <viktorin@rehivetech.com>
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Date: Thu, 18 Jun 2015 16:26:02 +0200
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Subject: [PATCH 2/2] zynq: Create zedboard-specific U-Boot environment
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---
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include/configs/zynq_zed.h | 25 +++++++++++++++++++++++++
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1 file changed, 25 insertions(+)
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diff --git a/include/configs/zynq_zed.h b/include/configs/zynq_zed.h
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index 946de95..2400a88 100644
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--- a/include/configs/zynq_zed.h
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+++ b/include/configs/zynq_zed.h
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@@ -24,4 +24,29 @@
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#include <configs/zynq-common.h>
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+#undef CONFIG_EXTRA_ENV_SETTINGS
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+#define CONFIG_EXTRA_ENV_SETTINGS \
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+ "envload=mmc info && if fatload mmc 0 0x1000 uEnv.txt;"\
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+ " then echo Importing uEnv.txt; env import -t 0x1000" \
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+ " $filesize; fi;\0" \
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+ "bootcmd=run $modeboot\0" \
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+ "modeboot=sdboot\0" \
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+ "baudrate=115200\0" \
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+ "bootenv=uEnv.txt\0" \
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+ "devicetree_image=zynq-zed.dtb\0" \
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+ "kernel_image=uImage\0" \
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+ "ramdisk_image=rootfs.cpio.uboot\0" \
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+ "fpga_image=system.bit\0" \
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+ "sdboot=echo Booting from SD...;" \
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+ " run envload; run fpgaboot;" \
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+ " fatload mmc 0 0x1000000 ${kernel_image}" \
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+ " && fatload mmc 0 0x2000000 ${ramdisk_image}" \
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+ " && fatload mmc 0 0x3000000 ${devicetree_image}" \
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+ " && bootm 0x1000000 0x2000000 0x3000000\0" \
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+ "fpgaboot=if fatload mmc 0 0x1000000 ${fpga_image};" \
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+ " then echo Booting FPGA from ${fpga_image};" \
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+ " fpga info 0 && fpga loadb 0 0x1000000 $filesize;" \
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+ " else echo FPGA image ${fpga_image} was not found," \
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+ " skipping...; fi;\0"
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+
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#endif /* __CONFIG_ZYNQ_ZED_H */
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--
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2.4.3
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