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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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20
arch/arm/Kconfig.debug
View File

@ -924,6 +924,20 @@ choice
Say Y here if you want kernel low-level debugging support
via SCIF2 on Renesas RZ/A1H (R7S72100).
config DEBUG_R7S9210_SCIF2
bool "Kernel low-level debugging messages via SCIF2 on R7S9210"
depends on ARCH_R7S9210
help
Say Y here if you want kernel low-level debugging support
via SCIF2 on Renesas RZ/A2M (R7S9210).
config DEBUG_R7S9210_SCIF4
bool "Kernel low-level debugging messages via SCIF4 on R7S9210"
depends on ARCH_R7S9210
help
Say Y here if you want kernel low-level debugging support
via SCIF4 on Renesas RZ/A2M (R7S9210).
config DEBUG_RCAR_GEN1_SCIF0
bool "Kernel low-level debugging messages via SCIF0 on R8A7778"
depends on ARCH_R8A7778
@ -1538,6 +1552,8 @@ config DEBUG_LL_INCLUDE
default "debug/netx.S" if DEBUG_NETX_UART
default "debug/omap2plus.S" if DEBUG_OMAP2PLUS_UART
default "debug/renesas-scif.S" if DEBUG_R7S72100_SCIF2
default "debug/renesas-scif.S" if DEBUG_R7S9210_SCIF2
default "debug/renesas-scif.S" if DEBUG_R7S9210_SCIF4
default "debug/renesas-scif.S" if DEBUG_RCAR_GEN1_SCIF0
default "debug/renesas-scif.S" if DEBUG_RCAR_GEN1_SCIF2
default "debug/renesas-scif.S" if DEBUG_RCAR_GEN2_SCIF0
@ -1668,7 +1684,8 @@ config DEBUG_UART_PHYS
default 0xe6e60000 if DEBUG_RCAR_GEN2_SCIF0
default 0xe6e68000 if DEBUG_RCAR_GEN2_SCIF1
default 0xe6ee0000 if DEBUG_RCAR_GEN2_SCIF4
default 0xe8008000 if DEBUG_R7S72100_SCIF2
default 0xe8008000 if DEBUG_R7S72100_SCIF2 || DEBUG_R7S9210_SCIF2
default 0xe8009000 if DEBUG_R7S9210_SCIF4
default 0xf0000000 if DEBUG_DIGICOLOR_UA0
default 0xf0000be0 if ARCH_EBSA110
default 0xf1012000 if DEBUG_MVEBU_UART0_ALTERNATE
@ -1702,6 +1719,7 @@ config DEBUG_UART_PHYS
DEBUG_UART_8250 || DEBUG_UART_PL01X || DEBUG_MESON_UARTAO || \
DEBUG_NETX_UART || \
DEBUG_QCOM_UARTDM || DEBUG_R7S72100_SCIF2 || \
DEBUG_R7S9210_SCIF2 || DEBUG_R7S9210_SCIF4 || \
DEBUG_RCAR_GEN1_SCIF0 || DEBUG_RCAR_GEN1_SCIF2 || \
DEBUG_RCAR_GEN2_SCIF0 || DEBUG_RCAR_GEN2_SCIF1 || \
DEBUG_RCAR_GEN2_SCIF2 || DEBUG_RCAR_GEN2_SCIF4 || \

6
arch/arm/include/debug/renesas-scif.S
View File

@ -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