uboot-bcm4908: add package with BCM4908 U-Boot

New BCM4908 devices come with U-Boot instead of CFE. Firmwares for such
devices has to include U-Boot.

Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
This commit is contained in:
Rafał Miłecki 2022-03-04 09:39:04 +01:00
parent 25d1c85d1a
commit 0d45e1ea96
4 changed files with 181 additions and 0 deletions

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@ -0,0 +1,48 @@
# SPDX-License-Identifier: GPL-2.0-or-later
include $(TOPDIR)/rules.mk
include $(INCLUDE_DIR)/kernel.mk
PKG_RELEASE:=$(AUTORELEASE)
PKG_SOURCE_PROTO:=git
PKG_SOURCE_URL:=https://git.openwrt.org/project/bcm63xx/u-boot.git
PKG_SOURCE_DATE:=2022-03-03
PKG_SOURCE_VERSION:=92e9eca819c9c898d9d2010e1a217726c42c8c47
PKG_MIRROR_HASH:=11c37fe4c18d55e799153600d1cfd8ee9ca7da8326d0024c1d825f4a327c5f0d
include $(INCLUDE_DIR)/u-boot.mk
include $(INCLUDE_DIR)/package.mk
define U-Boot/Default
BUILD_TARGET:=bcm4908
UBOOT_IMAGE:=u-boot-nodtb.bin
DEFAULT:=y
endef
define U-Boot/bcm4908
NAME:=Broadcom's BCM4908
UBOOT_CONFIG:=bcm94908
endef
UBOOT_TARGETS := \
bcm4908
define Build/Prepare
$(call Build/Prepare/Default)
mkdir -p $(PKG_BUILD_DIR)/include/generated/
( cd $(PKG_BUILD_DIR)/board/broadcom/bcmbca/httpd/html/ && \
xxd -i index.html > ../../../../../include/generated/index.h && \
xxd -i flashing.html > ../../../../../include/generated/flashing.h && \
xxd -i fail.html > ../../../../../include/generated/fail.h && \
xxd -i 404.html > ../../../../../include/generated/404.h )
endef
define Build/InstallDev
$(INSTALL_DIR) $(STAGING_DIR_IMAGE)/u-boot
$(INSTALL_BIN) $(PKG_BUILD_DIR)/$(UBOOT_IMAGE) $(STAGING_DIR_IMAGE)/u-boot/
$(INSTALL_BIN) $(PKG_BUILD_DIR)/u-boot.dtb $(STAGING_DIR_IMAGE)/u-boot/
$(INSTALL_BIN) $(PKG_BUILD_DIR)/arch/arm/dts/*.dtb $(STAGING_DIR_IMAGE)/u-boot/
endef
$(eval $(call BuildPackage/U-Boot))

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From: Masahiro Yamada <yamada.masahiro@socionext.com>
Date: Mon, 26 Sep 2016 13:05:02 +0900
Subject: [PATCH] check-config: allow to complete build even with ad-hoc CONFIG
options
Currently, the check-config.sh terminates the build when unknown
ad-hoc options are detected. I think it is too much because we may
want to patch config headers locally in a build/deployment project.
So, let's relax check-config.sh to just warn even if it detects
options that are not in the whitelist. Instead, this check can be
done at the end of build, along with other checks. It will catch
more attention.
Even with this change, the Buildman tool catches new warnings,
so Tom can give NACK to new ad-hoc options.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
---
scripts/check-config.sh | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
--- a/scripts/check-config.sh
+++ b/scripts/check-config.sh
@@ -50,14 +50,13 @@ cat `find ${srctree} -name "Kconfig*"` |sed -n \
|sort |uniq > ${ok}
comm -23 ${suspects} ${ok} >${new_adhoc}
if [ -s ${new_adhoc} ]; then
- echo >&2 "Error: You must add new CONFIG options using Kconfig"
+ echo >&2 "Warning: You must add new CONFIG options using Kconfig"
echo >&2 "The following new ad-hoc CONFIG options were detected:"
cat >&2 ${new_adhoc}
echo >&2
echo >&2 "Please add these via Kconfig instead. Find a suitable Kconfig"
echo >&2 "file and add a 'config' or 'menuconfig' option."
# Don't delete the temporary files in case they are useful
- exit 1
else
rm ${suspects} ${ok} ${new_adhoc}
fi

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From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl>
Date: Fri, 4 Mar 2022 09:21:32 +0100
Subject: [PATCH] configs: bcm94908: unset CONFIG_SPL
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Compiling SPL is always tricky as it needs to fit limited resources.
Fortunately in most cases there is no need to replace SPL or TPL while
flashing a new firmware.
Compiling SPL for BCM4908 seems to fail with non-Broadcom toolchain:
aarch64-openwrt-linux-musl-ld.bfd: u-boot-spl section `.u_boot_list' will not fit in region `.sram'
aarch64-openwrt-linux-musl-ld.bfd: section .bss VMA [00000000822b9000,00000000822b93ef] overlaps section .u_boot_list VMA [00000000822b8f60,00000000822b9a87]
aarch64-openwrt-linux-musl-ld.bfd: region `.sram' overflowed by 2696 bytes
It also requires hashtable.h which has to be generated using some
Broadcom's custom perl script that isn't integrated as this point.
For now just disable SPL and use only last-stage U-Boot that must be
shipped with every firmware.
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
---
configs/bcm94908_defconfig | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/configs/bcm94908_defconfig
+++ b/configs/bcm94908_defconfig
@@ -21,7 +21,7 @@ CONFIG_SPL_SERIAL_SUPPORT=y
CONFIG_TPL_LIBCOMMON_SUPPORT=y
CONFIG_TPL_LIBGENERIC_SUPPORT=y
CONFIG_NR_DRAM_BANKS=1
-CONFIG_SPL=y
+# CONFIG_SPL is not set
CONFIG_SPL_LIBDISK_SUPPORT=y
CONFIG_ENV_VARS_UBOOT_CONFIG=y
CONFIG_TPL_SYS_MALLOC_F_LEN=0x11000

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From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl>
Date: Fri, 4 Mar 2022 09:23:34 +0100
Subject: [PATCH] Assume TPL support for ATF when compiling U-Boot without TPL
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Broadcom's U-Boot behaviour depends on compilation time check whether
TPL was compiled with or without ATF support. There is no proper runtime
check.
When compiling just U-Boot (without SPL & TPL) there is no way to tell
if it's going to work with TPL with or without ATF support.
Modify code to blindly assume ATF support in TPL in such cases. It seems
to be always true for Broadcom and we need some assumption as we don't
deal with compiling SPL or TPL.
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
---
arch/arm/mach-bcmbca/bcm4908/cpu.c | 2 +-
board/broadcom/bcmbca/board.c | 4 ++--
2 files changed, 3 insertions(+), 3 deletions(-)
--- a/arch/arm/mach-bcmbca/bcm4908/cpu.c
+++ b/arch/arm/mach-bcmbca/bcm4908/cpu.c
@@ -138,7 +138,7 @@ int get_nr_cpus()
return nr_cpus;
}
-#if !defined(CONFIG_TPL_ATF)
+#if defined(CONFIG_TPL) && !defined(CONFIG_TPL_ATF)
void boot_secondary_cpu(unsigned long vector)
{
uint32_t cpu, nr_cpus = QUAD_CPUS;
--- a/board/broadcom/bcmbca/board.c
+++ b/board/broadcom/bcmbca/board.c
@@ -103,7 +103,7 @@ void board_spinor_init(void)
int board_init(void)
{
-#if !defined(CONFIG_TPL_ATF)
+#if defined(CONFIG_TPL) && !defined(CONFIG_TPL_ATF)
unsigned long vector;
#endif
board_sdk_init_e();
@@ -121,7 +121,7 @@ int board_init(void)
printf("$Uboot: "BUILD_TAG" $\n");
#endif
-#if !defined(CONFIG_TPL_ATF)
+#if defined(CONFIG_TPL) && !defined(CONFIG_TPL_ATF)
#if defined(CONFIG_ARM64)
vector = (unsigned long)&_start;
#else