Update Pine64 patches

Errata 843419 on default kernel needs testing

config/kernel/linux-pine64-default.config

@@ -23,6 +23,8 @@ CONFIG_SWIOTLB=y
 CONFIG_IOMMU_HELPER=y
 CONFIG_FIX_EARLYCON_MEM=y
 CONFIG_KERNEL_MODE_NEON=y
+CONFIG_ARM64_MODULE_CMODEL_LARGE=y
+CONFIG_ARM64_ERRATUM_843419=y
 CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
 CONFIG_IRQ_WORK=y
 CONFIG_BUILDTIME_EXTABLE_SORT=y

patch/kernel/pine64-default/backport-errata-843419.patch

@@ -0,0 +1,60 @@
+diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
+index bf428a1..bcfbbb5 100755
+--- a/arch/arm64/Kconfig
++++ b/arch/arm64/Kconfig
+@@ -477,6 +477,31 @@ config SECCOMP
+ 	  and the task is only allowed to execute a few safe syscalls
+ 	  defined by each seccomp mode.
+ 
++config ARM64_MODULE_CMODEL_LARGE
++	bool
++
++config ARM64_ERRATUM_843419
++	bool "Cortex-A53: 843419: A load or store might access an incorrect address"
++	depends on MODULES
++	default y
++	select ARM64_MODULE_CMODEL_LARGE
++	select ARM64_MODULE_CMODEL_LARGE if MODULES
++	help
++	  This option builds kernel modules using the large memory model in
++	  order to avoid the use of the ADRP instruction, which can cause
++	  a subsequent memory access to use an incorrect address on Cortex-A53
++	  parts up to r0p4.
++
++	  Note that the kernel itself must be linked with a version of ld
++	  which fixes potentially affected ADRP instructions through the
++	  use of veneers.
++	  This option links the kernel with '--fix-cortex-a53-843419' and
++	  builds modules using the large memory model in order to avoid the use
++	  of the ADRP instruction, which can cause a subsequent memory access
++	  to use an incorrect address on Cortex-A53 parts up to r0p4.
++
++	  If unsure, say Y.
++
+ endmenu
+ 
+ menu "Boot options"
+diff --git a/arch/arm64/Makefile b/arch/arm64/Makefile
+index e2782e1..4196f47 100755
+--- a/arch/arm64/Makefile
++++ b/arch/arm64/Makefile
+@@ -34,6 +34,19 @@ AS		+= -EL
+ LD		+= -EL
+ endif
+ 
++ifeq ($(CONFIG_ARM64_MODULE_CMODEL_LARGE), y)
++KBUILD_CFLAGS_MODULE	+= -mcmodel=large
++endif
++
++ifeq ($(CONFIG_ARM64_ERRATUM_843419),y)
++ld-843419-workaround := $(call ld-option, --fix-cortex-a53-843419)
++ifeq ($(ld-843419-workaround),)
++$(warning ld does not support --fix-cortex-a53-843419; kernel may be susceptible to erratum)
++else
++LDFLAGS_vmlinux        += --fix-cortex-a53-843419
++endif
++endif
++
+ comma = ,
+ 
+ CHECKFLAGS	+= -D__aarch64__

patch/u-boot/u-boot-pine64-dev/unpatch_sun50i_sram_stack_issue.patch

@@ -1,22 +0,0 @@
-diff --git a/u-boot/include/configs/sunxi-common.h b/u-boot/include/configs/sunxi-common.h
-index b9aa62b..980c252 100644
---- a/u-boot/include/configs/sunxi-common.h
-+++ b/u-boot/include/configs/sunxi-common.h
-@@ -100,7 +100,7 @@
-  * the 1 actually activates the mapping of the first 32 KiB to 0x00000000.
-  */
- #define CONFIG_SYS_INIT_RAM_ADDR	0x10000
--#define CONFIG_SYS_INIT_RAM_SIZE	0xA000	/* 40 KiB */
-+#define CONFIG_SYS_INIT_RAM_SIZE	0x8000	/* 40 KiB */
- #else
- #define CONFIG_SYS_INIT_RAM_ADDR	0x0
- #define CONFIG_SYS_INIT_RAM_SIZE	0x8000	/* 32 KiB */
-@@ -221,7 +221,7 @@
- #define CONFIG_SPL_PAD_TO		32768		/* decimal for 'dd' */
- 
- #if defined(CONFIG_MACH_SUN9I) || defined(CONFIG_MACH_SUN50I)
--#define LOW_LEVEL_SRAM_STACK		0x0001A000
-+#define LOW_LEVEL_SRAM_STACK		0x00018000
- #define CONFIG_SPL_STACK		LOW_LEVEL_SRAM_STACK
- #else
- /* end of 32 KiB in sram */