On Wed, Aug 07, 2019 at 10:54:15AM +0200, Geert Uytterhoeven wrote: > 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 <[email protected]>
Reviewed-by: Simon Horman <[email protected]> > --- > arch/arm/Kconfig.debug | 20 +++++++++++++++++++- > arch/arm/include/debug/renesas-scif.S | 6 +++++- > 2 files changed, 24 insertions(+), 2 deletions(-) > > diff --git a/arch/arm/Kconfig.debug b/arch/arm/Kconfig.debug > index 85710e078afb4878..9fe038aecc553deb 100644 > --- a/arch/arm/Kconfig.debug > +++ b/arch/arm/Kconfig.debug > @@ -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 > @@ -1537,6 +1551,8 @@ config DEBUG_LL_INCLUDE > default "debug/msm.S" if DEBUG_QCOM_UARTDM > 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 > @@ -1666,7 +1682,8 @@ 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 > @@ -1699,6 +1716,7 @@ config DEBUG_UART_PHYS > DEBUG_LL_UART_EFM32 || \ > DEBUG_UART_8250 || DEBUG_UART_PL01X || DEBUG_MESON_UARTAO || \ > 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 || \ > diff --git a/arch/arm/include/debug/renesas-scif.S > b/arch/arm/include/debug/renesas-scif.S > index 1c5f795587fc5681..25f06663a9a4e2c1 100644 > --- a/arch/arm/include/debug/renesas-scif.S > +++ b/arch/arm/include/debug/renesas-scif.S > @@ -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 > -- > 2.17.1 >
