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ARM: debug-ll: Add support for r7s9210

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Enable low-level debugging support for RZ/A2M (r7s9210).

The RZA2MEVB board uses either SCIF2 (SDRAM enabled) or SCIF4 (HyperRAM
only) for the serial console.

Note that "SCIFA" serial ports on RZ/A2 SoCs use a compressed register
layout, hence add support for that to renesas-scif.S.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
This commit is contained in:
Geert Uytterhoeven
2019-06-03 09:37:19 +02:00
parent 5f9e832c13
commit e9670ccb39
2 changed files with 24 additions and 2 deletions
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6
arch/arm/include/debug/renesas-scif.S
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@@ -11,7 +11,11 @@
#define SCIF_PHYS CONFIG_DEBUG_UART_PHYS
#define SCIF_VIRT ((SCIF_PHYS & 0x00ffffff) | 0xfd000000)
#if CONFIG_DEBUG_UART_PHYS < 0xe6e00000
#if defined(CONFIG_DEBUG_R7S9210_SCIF2) || defined(CONFIG_DEBUG_R7S9210_SCIF4)
/* RZ/A2 SCIFA */
#define FTDR 0x06
#define FSR 0x08
#elif CONFIG_DEBUG_UART_PHYS < 0xe6e00000
/* SCIFA */
#define FTDR 0x20
#define FSR 0x14