On 07/04/2025 10:19, Jorge Ramirez-Ortiz wrote:
Update build instructions.
Signed-off-by: Jorge Ramirez-Ortiz <jorge.rami...@oss.qualcomm.com>
---
board/qualcomm/dragonboard820c/readme.txt | 47 ++++++++++-------------
1 file changed, 21 insertions(+), 26 deletions(-)
diff --git a/board/qualcomm/dragonboard820c/readme.txt
b/board/qualcomm/dragonboard820c/readme.txt
index 966e9520e85..5817c837fdf 100644
--- a/board/qualcomm/dragonboard820c/readme.txt
+++ b/board/qualcomm/dragonboard820c/readme.txt
@@ -16,10 +16,7 @@
Build & Run instructions
================================================================================
-1) Install mkbootimg and dtbTool from Codeaurora:
-
- git://codeaurora.org/quic/kernel/skales
- commit 8492547e404e969262d9070dee9bdd15668bb70f worked for me.
+1) Install mkbootimg
2) Setup CROSS_COMPILE to aarch64 compiler or if you use ccache just do
CROSS_COMPILE="ccache aarch64-linux-gnu-"
@@ -33,15 +30,15 @@
$ touch rd
-5) Generate qualcomm device tree table with dtbTool
+5) Append the dtb to the u-boot binary
- $ dtbTool -o dt.img arch/arm/dts
+ $ gzip u-boot-dtb.bin
+ $ cat u-boot.dtb >> u-boot-dtb.bin.gz
6) Generate Android boot image with mkbootimg:
- $ mkbootimg --kernel=u-boot-dtb.bin \
+ $ mkbootimg --kernel=u-boot-dtb.bin.gz \
--output=u-boot.img \
- --dt=dt.img \
--pagesize 4096 \
--base 0x80000000 \
--ramdisk=rd \
@@ -251,44 +248,42 @@ Wait for 5 seconds before proceeding
[5300] booting linux @ 0x80080000, ramdisk @ 0x82200000 (0), tags/device tree
@ 0x82000000
[5310] Jumping to kernel via monitor
-U-Boot 2017.11-00145-ge895117 (Nov 29 2017 - 10:04:06 +0100)
+U-Boot 2025.04-rc5-00020-g40a61ca0e7eb-dirty (Apr 07 2025 - 09:37:03 +0200)
Qualcomm-DragonBoard 820C
-DRAM: 3 GiB
-PSCI: v1.0
-MMC: sdhci@74a4900: 0
+DRAM: 3.5 GiB (effective 3 GiB)
+Core: 136 devices, 18 uclasses, devicetree: board
+MMC: Bulk clocks not available (-19), trying core clock
+mmc@74a4900: 0
+Loading Environment from EXT4... OK
In: serial@75b0000
Out: serial@75b0000
Err: serial@75b0000
-Net: Net Initialization Skipped
-No ethernet found.
+Net: No ethernet found.
Hit any key to stop autoboot: 0
switch to partitions #0, OK
mmc0 is current device
Scanning mmc 0:1...
Found /extlinux/extlinux.conf
Retrieving file: /extlinux/extlinux.conf
-433 bytes read in 71 ms (5.9 KiB/s)
1: nfs root
-
+Enter choice: 1: nfs root
Retrieving file: /uImage
-19397184 bytes read in 2024 ms (9.1 MiB/s)
-append: root=/dev/nfs rw nfsroot=192.168.1.2:/db820c/rootfs,v3,tcp rootwait
ip=dhcp consoleblank=0 console=tty0 console=ttyMSM0,115200n8 earlyprintk
earlycon=msm_serial_dm,0x75b0000 androidboot.bootdevice=624000.ufshc
androidboot.verifiedbootstate=orange androidboot.ver0
-
+append: root=/dev/nfs rw
nfsroot=192.168.1.6:/home/jramirez/Src/qualcomm-lt/db820c/rootfs,v3,tcp
rootwait ip=dhcp consoleblank=0 console=tty0 console=ttyMSM0,115200n8
earlyprintk earlyco0
Retrieving file: /apq8096-db820c.dtb
-38134 bytes read in 37 ms (1005.9 KiB/s)
-
-## Booting kernel from Legacy Image at 95000000 ...
+## Booting kernel from Legacy Image at 155000000 ...
Image Name: Dragonboard820c
Image Type: AArch64 Linux Kernel Image (uncompressed)
Data Size: 19397120 Bytes = 18.5 MiB
Load Address: 80080000
Entry Point: 80080000
Verifying Checksum ... OK
-## Flattened Device Tree blob at 93000000
- Booting using the fdt blob at 0x93000000
- Loading Kernel Image ... OK
- Using Device Tree in place at 0000000093000000, end 000000009300c4f5
+## Flattened Device Tree blob at 148600000
+ Booting using the fdt blob at 0x148600000
+Working FDT set to 148600000
+ Loading Kernel Image to 80080000
+ Using Device Tree in place at 0000000148600000, end 000000014860c4f5
+Working FDT set to 148600000
Starting kernel ...
Reviewed-by: Neil Armstrong <neil.armstr...@linaro.org>
