diff options
| -rw-r--r-- | package/boot/uboot-lantiq/patches/0033-MIPS-lantiq-reduce-stack-size.patch | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/package/boot/uboot-lantiq/patches/0033-MIPS-lantiq-reduce-stack-size.patch b/package/boot/uboot-lantiq/patches/0033-MIPS-lantiq-reduce-stack-size.patch new file mode 100644 index 0000000000..4f63ffc423 --- /dev/null +++ b/package/boot/uboot-lantiq/patches/0033-MIPS-lantiq-reduce-stack-size.patch @@ -0,0 +1,56 @@ +From ad739ffebf689abdbcddbe4e1b0bf847d7931a92 Mon Sep 17 00:00:00 2001 +From: Mathias Kresin <dev@kresin.me> +Date: Fri, 20 Jan 2017 13:59:53 +0100 +Subject: [PATCH] MIPS: lantiq: reduce stack size + +On lantiq a lot of stuff expects to be loaded to and executed at +0x80002000, including our own second stage bootloader. + +For all build u-boots, the initial stack pointer is at 0x80008000. After +loading data to 0x80002000, every further stack operation corrupts the +loaded code. + +Set the initial stack pointer to 0x80002000, to not overwrite code +loaded in memory. A stack of 0x2000 bytes has been proven as enough in +all done tests. + +Signed-off-by: Mathias Kresin <dev@kresin.me> +--- + arch/mips/include/asm/arch-arx100/config.h | 2 +- + arch/mips/include/asm/arch-danube/config.h | 2 +- + arch/mips/include/asm/arch-vrx200/config.h | 2 +- + 3 files changed, 3 insertions(+), 3 deletions(-) + +--- a/arch/mips/include/asm/arch-arx100/config.h ++++ b/arch/mips/include/asm/arch-arx100/config.h +@@ -66,7 +66,7 @@ + #define CONFIG_SYS_MEMTEST_END 0x82000000 + #define CONFIG_SYS_LOAD_ADDR 0x81000000 + #define CONFIG_SYS_LOAD_SIZE (2 * 1024 * 1024) +-#define CONFIG_SYS_INIT_SP_OFFSET (32 * 1024) ++#define CONFIG_SYS_INIT_SP_OFFSET 0x2000 + + /* SRAM */ + #define CONFIG_SYS_SRAM_BASE 0xBE1A0000 +--- a/arch/mips/include/asm/arch-danube/config.h ++++ b/arch/mips/include/asm/arch-danube/config.h +@@ -57,7 +57,7 @@ + #define CONFIG_SYS_MEMTEST_END 0x82000000 + #define CONFIG_SYS_LOAD_ADDR 0x81000000 + #define CONFIG_SYS_LOAD_SIZE (2 * 1024 * 1024) +-#define CONFIG_SYS_INIT_SP_OFFSET 0x4000 ++#define CONFIG_SYS_INIT_SP_OFFSET 0x2000 + + /* SRAM */ + #define CONFIG_SYS_SRAM_BASE 0xBE1A0000 +--- a/arch/mips/include/asm/arch-vrx200/config.h ++++ b/arch/mips/include/asm/arch-vrx200/config.h +@@ -69,7 +69,7 @@ + #define CONFIG_SYS_MEMTEST_END 0x82000000 + #define CONFIG_SYS_LOAD_ADDR 0x81000000 + #define CONFIG_SYS_LOAD_SIZE (2 * 1024 * 1024) +-#define CONFIG_SYS_INIT_SP_OFFSET (32 * 1024) ++#define CONFIG_SYS_INIT_SP_OFFSET 0x2000 + + /* SRAM */ + #define CONFIG_SYS_SRAM_BASE 0xBE220000 |