diff options
| -rw-r--r-- | arch/arm/cpu/arm926ejs/mxs/start.S | 9 | ||||
| -rw-r--r-- | arch/arm/include/asm/arch-mxs/sys_proto.h | 2 |
2 files changed, 11 insertions, 0 deletions
diff --git a/arch/arm/cpu/arm926ejs/mxs/start.S b/arch/arm/cpu/arm926ejs/mxs/start.S index 3e454ae1bc..5de2bad584 100644 --- a/arch/arm/cpu/arm926ejs/mxs/start.S +++ b/arch/arm/cpu/arm926ejs/mxs/start.S @@ -150,6 +150,15 @@ IRQ_STACK_START_IN: _reset: /* + * If the CPU is configured in "Wait JTAG connection mode", the stack + * pointer is not configured and is zero. This will cause crash when + * trying to push data onto stack right below here. Load the SP and make + * it point to the end of OCRAM if the SP is zero. + */ + cmp sp, #0x00000000 + ldreq sp, =CONFIG_SYS_INIT_SP_ADDR + + /* * Store all registers on old stack pointer, this will allow us later to * return to the BootROM and let the BootROM load U-Boot into RAM. * diff --git a/arch/arm/include/asm/arch-mxs/sys_proto.h b/arch/arm/include/asm/arch-mxs/sys_proto.h index 43c7dd6bf1..09dfc90a9b 100644 --- a/arch/arm/include/asm/arch-mxs/sys_proto.h +++ b/arch/arm/include/asm/arch-mxs/sys_proto.h @@ -46,6 +46,7 @@ static const struct mxs_pair mxs_boot_modes[] = { { 0x02, 0x1f, "SSP SPI #1, master, NOR" }, { 0x03, 0x1f, "SSP SPI #2, master, NOR" }, { 0x04, 0x1f, "NAND" }, + { 0x06, 0x1f, "JTAG" }, { 0x08, 0x1f, "SSP SPI #3, master, EEPROM" }, { 0x09, 0x1f, "SSP SD/MMC #0" }, { 0x0a, 0x1f, "SSP SD/MMC #1" }, @@ -60,6 +61,7 @@ static const struct mxs_pair mxs_boot_modes[] = { { 0x13, 0x1f, "SSP SPI #3, master, 1V8 NOR" }, { 0x04, 0x1f, "NAND, 3V3" }, { 0x14, 0x1f, "NAND, 1V8" }, + { 0x06, 0x1f, "JTAG" }, { 0x08, 0x1f, "SSP SPI #3, master, 3V3 EEPROM" }, { 0x18, 0x1f, "SSP SPI #3, master, 1V8 EEPROM" }, { 0x09, 0x1f, "SSP SD/MMC #0, 3V3" }, |
