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ARM: s3c64xx: bring back notes from removed debug-macro.S

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Documentation references notes from a removed debug-macro.S file so
bring the contents here.

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Link: https://lore.kernel.org/r/20200911143343.498-3-krzk@kernel.org
This commit is contained in:
Krzysztof Kozlowski
2020-09-11 16:33:43 +02:00
parent a0663189ac
commit 0df3c29f68
1 changed files with 6 additions and 1 deletions
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7
arch/arm/mach-s3c64xx/common.c
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@@ -97,7 +97,12 @@ static struct cpu_table cpu_ids[] __initdata = {
/* minimal IO mapping */
/* see notes on uart map in arch/arm/mach-s3c64xx/include/mach/debug-macro.S */
/*
* note, for the boot process to work we have to keep the UART
* virtual address aligned to an 1MiB boundary for the L1
* mapping the head code makes. We keep the UART virtual address
* aligned and add in the offset when we load the value here.
*/
#define UART_OFFS (S3C_PA_UART & 0xfffff)
static struct map_desc s3c_iodesc[] __initdata = {