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| author | Christo Nedev <christo.nedev@gmail.com> | 2018-06-01 14:23:21 +0000 |
|---|---|---|
| committer | John Crispin <john@phrozen.org> | 2018-06-07 09:00:13 +0200 |
| commit | c335649629e641209a3539209defffeea090ad8f (patch) | |
| tree | 71b15c648854393812c0c19d227e64889b3559c1 | |
| parent | 8796680277f4b231386fbc6e8a1ccae91d9fcbe8 (diff) | |
| download | upstream-c335649629e641209a3539209defffeea090ad8f.tar.gz upstream-c335649629e641209a3539209defffeea090ad8f.tar.bz2 upstream-c335649629e641209a3539209defffeea090ad8f.zip | |
brcm2708: Update brcm2708-gpu-fw package
Problem - rapsberry pi 3 b/b+ does not boot with bcm2710 images!
How Raspberry Pi boots Actualy?
When Raspberry is switched on GPU is activated.
1. GPU execute First stage bootloader from ROM.
First stage bootloader mount the FAT boot partition on the SD card
and execute second stage bootloader (bootcode.bin).
2. Second stage bootloader (bootcode.bin) activate SDRAM.
Load the GPU firmware (start.elf).
3. GPU firmware (start.elf)
a) display Rainbow splash.
b) read firmware configuration file config.txt and
split the RAM using fixup.dat.
c) loads a cmdline.txt
d) enables the CPU.
e) loads the kernel image configurable via config.txt
In your target/linux/brcm2708/image/config.txt
493 ## kernel (string)
494 ## Alternative name to use when loading kernel.
495 ##
496 #kernel=""
it is not configured!
But in your target/linux/brcm2708/image/Makefile
75 KERNEL_IMG := kernel8.img
76 DEVICE_TITLE := Raspberry Pi 3B/3B+
you have kernel8.img
GPU Firmware search order by default for a PI 3 is:
kernel8.img if found boot in 64 bit mode
kernel8-32.img if found boot in 32 bit mode
kernel7.img if found boot in 32 bit mode
kernel.img if found boot in 32 bit mode
But a PI 2 will start the search from kernel7.img and
a PI 1 only looks for kernel.img.
Đžbviously the kernel has been found.
But something goes wrong and the device is restarted.
In your package/kernel/brcm2708-gpu-fw/Makefile
11 PKG_NAME:=brcm2708-gpu-fw
12 PKG_VERSION:=2017-08-08
13 PKG_RELEASE:=e7ba7ab135f5a68b2c00a919ea9ac8d5528a5d5b
boot loader is 10 monts old.
In conclusion, the best way to solve the problem is
to update the boot loader!
Fixup_cd.dat and start_cd.elf files are not necessary.
These are used when GPU memory is set to 16 MB, which disables
some GPU features.
I did not remove them just in case!
cheers
Signed-off-by: Christo Nedev <christo.nedev@gmail.com>
| -rw-r--r-- | package/kernel/brcm2708-gpu-fw/Makefile | 14 |
1 files changed, 7 insertions, 7 deletions
diff --git a/package/kernel/brcm2708-gpu-fw/Makefile b/package/kernel/brcm2708-gpu-fw/Makefile index 9f3d7d3092..73aebd7b5f 100644 --- a/package/kernel/brcm2708-gpu-fw/Makefile +++ b/package/kernel/brcm2708-gpu-fw/Makefile @@ -9,8 +9,8 @@ include $(TOPDIR)/rules.mk include $(INCLUDE_DIR)/kernel.mk PKG_NAME:=brcm2708-gpu-fw -PKG_VERSION:=2017-08-08 -PKG_RELEASE:=e7ba7ab135f5a68b2c00a919ea9ac8d5528a5d5b +PKG_VERSION:=2018-05-16 +PKG_RELEASE:=0f5f899ccec1c2ef8bba02aa49700b4ec19b4199 PKG_BUILD_DIR:=$(KERNEL_BUILD_DIR)/$(PKG_NAME)/rpi-firmware-$(PKG_RELEASE) @@ -33,7 +33,7 @@ define Download/bootcode_bin FILE:=$(RPI_FIRMWARE_FILE)-bootcode.bin URL:=$(RPI_FIRMWARE_URL) URL_FILE:=bootcode.bin - HASH:=b5928ef5253774362014f9e7de856397a932514fe1bc5d7f7817a73c0e10e863 + HASH:=c9eb5258766fabf7127e790b257f106e2717f0ccaaed37544b970b0d113956fc endef $(eval $(call Download,bootcode_bin)) @@ -41,7 +41,7 @@ define Download/fixup_dat FILE:=$(RPI_FIRMWARE_FILE)-fixup.dat URL:=$(RPI_FIRMWARE_URL) URL_FILE:=fixup.dat - HASH:=d95fcac57de7ab71e863a115fd60444f6099cb2ea100f4a68b2c606f79e775ed + HASH:=8a6311e73d0f349be9b8424db0644fd8f48aaf721f3f2f487488c83d7316cbdf endef $(eval $(call Download,fixup_dat)) @@ -49,7 +49,7 @@ define Download/fixup_cd_dat FILE:=$(RPI_FIRMWARE_FILE)-fixup_cd.dat URL:=$(RPI_FIRMWARE_URL) URL_FILE:=fixup_cd.dat - HASH:=28f3ec8388df4e0c47489f8370a29ca81dbc536fe7db9978342865b5d093ec36 + HASH:=973b008aae9711d57ddce4f058354fe5a0b4725dd825673f784a2e2754da1f28 endef $(eval $(call Download,fixup_cd_dat)) @@ -57,7 +57,7 @@ define Download/start_elf FILE:=$(RPI_FIRMWARE_FILE)-start.elf URL:=$(RPI_FIRMWARE_URL) URL_FILE:=start.elf - HASH:=8712fb4e241a22f7a33de0f1d420e0fdfff237952aa685c907b91e59c8d487fa + HASH:=8e77c4cce7e44ced609e5046dd55f19cb7656a8ce4694e733b7eb6ecab915fe1 endef $(eval $(call Download,start_elf)) @@ -65,7 +65,7 @@ define Download/start_cd_elf FILE:=$(RPI_FIRMWARE_FILE)-start_cd.elf URL:=$(RPI_FIRMWARE_URL) URL_FILE:=start_cd.elf - HASH:=c600ab34bea389da10aac541bf2f9c62e5f774093b7e1f2f72c4637f9cf3a83c + HASH:=25223b479b7aca1d74c6f7a1829aba69fd14906ca5b25ae12571fe71ea2c5a4a endef $(eval $(call Download,start_cd_elf)) |