On Thu, Mar 19, 2015 at 04:45:48PM +0000, York Sun wrote:
From: Scott Wood scottwood@freescale.com
This lets us see the problems (close to) when they happen, rather than Linux hanging when it enables them prior to having a working console.
FYI, if the Linux driver for your UART supports earlycon, that should work since commit 7a9c43bed891d1f8 ("setup: Move unmask of async interrupts after possible earlycon setup").
I hope that SError is masked again prior to entering Linux, as required by the boot protocol?
Mark.
Signed-off-by: Scott Wood scottwood@freescale.com
arch/arm/cpu/armv8/fsl-lsch3/cpu.c | 4 ++++ 1 file changed, 4 insertions(+)
diff --git a/arch/arm/cpu/armv8/fsl-lsch3/cpu.c b/arch/arm/cpu/armv8/fsl-lsch3/cpu.c index 07064a3..22b5fb2 100644 --- a/arch/arm/cpu/armv8/fsl-lsch3/cpu.c +++ b/arch/arm/cpu/armv8/fsl-lsch3/cpu.c @@ -263,6 +263,10 @@ int arch_cpu_init(void) __asm_invalidate_tlb_all(); early_mmu_setup(); set_sctlr(get_sctlr() | CR_C);
- /* Enable system error aborts */
- asm volatile("msr daifclr, #4" : : : "memory");
- return 0;
}
-- 1.7.9.5
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