This change enable ATAGS support in ipq806x kernel options, and generate the zImage as part of the kernel binaries.
Signed-off-by: Mathieu Olivari <[email protected]> --- target/linux/ipq806x/Makefile | 2 +- target/linux/ipq806x/config-3.18 | 7 ++- target/linux/ipq806x/config-4.0 | 8 ++- .../300-arch-arm-force-ZRELADDR-on-arch-qcom.patch | 72 ++++++++++++++++++++++ 4 files changed, 84 insertions(+), 5 deletions(-) create mode 100644 target/linux/ipq806x/patches-4.0/300-arch-arm-force-ZRELADDR-on-arch-qcom.patch diff --git a/target/linux/ipq806x/Makefile b/target/linux/ipq806x/Makefile index 1512b30..f97db74 100644 --- a/target/linux/ipq806x/Makefile +++ b/target/linux/ipq806x/Makefile @@ -11,7 +11,7 @@ MAINTAINER:=John Crispin <[email protected]> KERNEL_PATCHVER:=3.18 -KERNELNAME:=Image dtbs +KERNELNAME:=zImage Image dtbs include $(INCLUDE_DIR)/target.mk DEFAULT_PACKAGES += \ diff --git a/target/linux/ipq806x/config-3.18 b/target/linux/ipq806x/config-3.18 index 8de4cb4..219e2c7 100644 --- a/target/linux/ipq806x/config-3.18 +++ b/target/linux/ipq806x/config-3.18 @@ -33,8 +33,12 @@ CONFIG_ARCH_WANT_IPC_PARSE_VERSION=y CONFIG_ARCH_WANT_OPTIONAL_GPIOLIB=y CONFIG_ARM=y CONFIG_ARM_AMBA=y +CONFIG_ARM_APPENDED_DTB=y CONFIG_ARM_ARCH_TIMER=y CONFIG_ARM_ARCH_TIMER_EVTSTREAM=y +CONFIG_ARM_ATAG_DTB_COMPAT=y +# CONFIG_ARM_ATAG_DTB_COMPAT_CMDLINE_EXTEND is not set +CONFIG_ARM_ATAG_DTB_COMPAT_CMDLINE_FROM_BOOTLOADER=y CONFIG_ARM_CPU_SUSPEND=y CONFIG_ARM_GIC=y CONFIG_ARM_HAS_SG_CHAIN=y @@ -48,7 +52,7 @@ CONFIG_ARM_THUMB=y CONFIG_ARM_UNWIND=y CONFIG_ARM_VIRT_EXT=y CONFIG_AT803X_PHY=y -CONFIG_AUTO_ZRELADDR=y +CONFIG_ATAGS=y # CONFIG_BOOTPARAM_SOFTLOCKUP_PANIC is not set CONFIG_BOOTPARAM_SOFTLOCKUP_PANIC_VALUE=0 CONFIG_BOUNCE=y @@ -92,6 +96,7 @@ CONFIG_DEBUG_BUGVERBOSE=y CONFIG_DEBUG_GPIO=y CONFIG_DEBUG_LL_INCLUDE="mach/debug-macro.S" CONFIG_DEBUG_PREEMPT=y +# CONFIG_DEBUG_QCOM_UARTDM is not set # CONFIG_DEBUG_UART_8250 is not set # CONFIG_DEBUG_UART_PL01X is not set # CONFIG_DEBUG_USER is not set diff --git a/target/linux/ipq806x/config-4.0 b/target/linux/ipq806x/config-4.0 index c7bbcd9..7136424 100644 --- a/target/linux/ipq806x/config-4.0 +++ b/target/linux/ipq806x/config-4.0 @@ -34,8 +34,12 @@ CONFIG_ARCH_WANT_IPC_PARSE_VERSION=y CONFIG_ARCH_WANT_OPTIONAL_GPIOLIB=y CONFIG_ARM=y CONFIG_ARM_AMBA=y +CONFIG_ARM_APPENDED_DTB=y CONFIG_ARM_ARCH_TIMER=y CONFIG_ARM_ARCH_TIMER_EVTSTREAM=y +CONFIG_ARM_ATAG_DTB_COMPAT=y +# CONFIG_ARM_ATAG_DTB_COMPAT_CMDLINE_EXTEND is not set +CONFIG_ARM_ATAG_DTB_COMPAT_CMDLINE_FROM_BOOTLOADER=y CONFIG_ARM_CPU_SUSPEND=y CONFIG_ARM_GIC=y CONFIG_ARM_HAS_SG_CHAIN=y @@ -50,8 +54,7 @@ CONFIG_ARM_THUMB=y CONFIG_ARM_UNWIND=y CONFIG_ARM_VIRT_EXT=y CONFIG_AT803X_PHY=y -CONFIG_AUTO_ZRELADDR=y -# CONFIG_BATTERY_GAUGE_LTC2941 is not set +CONFIG_ATAGS=y # CONFIG_BOOTPARAM_SOFTLOCKUP_PANIC is not set CONFIG_BOOTPARAM_SOFTLOCKUP_PANIC_VALUE=0 CONFIG_BOUNCE=y @@ -348,7 +351,6 @@ CONFIG_SWCONFIG=y CONFIG_SWIOTLB=y CONFIG_SWP_EMULATE=y CONFIG_SYS_SUPPORTS_APM_EMULATION=y -# CONFIG_TEGRA_AHB is not set CONFIG_THERMAL=y # CONFIG_THERMAL_DEFAULT_GOV_FAIR_SHARE is not set CONFIG_THERMAL_DEFAULT_GOV_STEP_WISE=y diff --git a/target/linux/ipq806x/patches-4.0/300-arch-arm-force-ZRELADDR-on-arch-qcom.patch b/target/linux/ipq806x/patches-4.0/300-arch-arm-force-ZRELADDR-on-arch-qcom.patch new file mode 100644 index 0000000..82170cd --- /dev/null +++ b/target/linux/ipq806x/patches-4.0/300-arch-arm-force-ZRELADDR-on-arch-qcom.patch @@ -0,0 +1,72 @@ +From b12e230f09d4481424e6a5d7e2ae566b6954e83f Mon Sep 17 00:00:00 2001 +From: Mathieu Olivari <[email protected]> +Date: Wed, 29 Apr 2015 15:21:46 -0700 +Subject: [PATCH] HACK: arch: arm: force ZRELADDR on arch-qcom + +ARCH_QCOM is using the ARCH_MULTIPLATFORM option, as now recommended +on most ARM architectures. This automatically calculate ZRELADDR by +masking PHYS_OFFSET with 0xf8000000. + +However, on IPQ806x, the first ~20MB of RAM is reserved for the hardware +network accelerators, and the bootloader removes this section from the +layout passed from the ATAGS (when used). + +For newer bootloader, when DT is used, this is not a problem, we just +reserve this memory in the device tree. But if the bootloader doesn't +have DT support, then ATAGS have to be used. In this case, the ARM +decompressor will position the kernel in this low mem, which will not be +in the RAM section mapped by the bootloader, which means the kernel will +freeze in the middle of the boot process trying to map the memory. + +As a work around, this patch allows disabling AUTO_ZRELADDR when +ARCH_QCOM is selected. It makes the zImage usage possible on bootloaders +which don't support device-tree, which is the case on certain early +IPQ806x based designs. + +Signed-off-by: Mathieu Olivari <[email protected]> +--- + arch/arm/Kconfig | 2 +- + arch/arm/Makefile | 2 ++ + arch/arm/mach-qcom/Makefile.boot | 1 + + 3 files changed, 4 insertions(+), 1 deletion(-) + create mode 100644 arch/arm/mach-qcom/Makefile.boot + +diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig +index 89c4b5c..4583ea5 100644 +--- a/arch/arm/Kconfig ++++ b/arch/arm/Kconfig +@@ -311,7 +311,7 @@ config ARCH_MULTIPLATFORM + select ARCH_WANT_OPTIONAL_GPIOLIB + select ARM_HAS_SG_CHAIN + select ARM_PATCH_PHYS_VIRT +- select AUTO_ZRELADDR ++ select AUTO_ZRELADDR if !ARCH_QCOM + select CLKSRC_OF + select COMMON_CLK + select GENERIC_CLOCKEVENTS +diff --git a/arch/arm/Makefile b/arch/arm/Makefile +index 7453352..5d6f8ac 100644 +--- a/arch/arm/Makefile ++++ b/arch/arm/Makefile +@@ -240,9 +240,11 @@ MACHINE := arch/arm/mach-$(word 1,$(machine-y))/ + else + MACHINE := + endif ++ifeq ($(CONFIG_ARCH_QCOM),) + ifeq ($(CONFIG_ARCH_MULTIPLATFORM),y) + MACHINE := + endif ++endif + + machdirs := $(patsubst %,arch/arm/mach-%/,$(machine-y)) + platdirs := $(patsubst %,arch/arm/plat-%/,$(sort $(plat-y))) +diff --git a/arch/arm/mach-qcom/Makefile.boot b/arch/arm/mach-qcom/Makefile.boot +new file mode 100644 +index 0000000..67a6d5a +--- /dev/null ++++ b/arch/arm/mach-qcom/Makefile.boot +@@ -0,0 +1 @@ ++zreladdr-y+= 0x42208000 +-- +1.9.1 + -- 1.9.1 _______________________________________________ openwrt-devel mailing list [email protected] https://lists.openwrt.org/cgi-bin/mailman/listinfo/openwrt-devel
