On 14 March 2012 20:12, Kukjin Kim <kgene.kim@xxxxxxxxxxx> wrote: > Actually, the base address of uart is different between EXYNOS4 > and EXYNOS5 and this patch enables to support uart for EXYNOS4 > and EXYNOS5 SoCs at runtime. > > Signed-off-by: Kukjin Kim <kgene.kim@xxxxxxxxxxx> > --- [...] > diff --git a/arch/arm/mach-exynos/include/mach/debug-macro.S b/arch/arm/mach-exynos/include/mach/debug-macro.S > index 6cacf16..6c857ff 100644 > --- a/arch/arm/mach-exynos/include/mach/debug-macro.S > +++ b/arch/arm/mach-exynos/include/mach/debug-macro.S > @@ -21,8 +21,13 @@ > */ > > .macro addruart, rp, rv, tmp > - ldr \rp, = S3C_PA_UART > - ldr \rv, = S3C_VA_UART > + mov \rp, #0x10000000 This is physical address of Exynos4/5 CPUID register which cannot be used here. And virtual address S5P_VA_CPUID also cannot be used here since this will be called before paging_init when earlyprintk boot param is used. So, with this change, earlyprintk does not work for both Exynos4 and Exynos5. Thanks, Thomas. -- To unsubscribe from this list: send the line "unsubscribe linux-samsung-soc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
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