sh: hd64461: Handle virq offset for offchip IRQ base and HD64461 IRQ

A recent change to start counting SuperH IRQ #s from 16 breaks support
for the Hitachi HD64461 companion chip.

Move the offchip IRQ base and HD64461 IRQ # by 16 in order to
accommodate for the new virq numbering rules.

Fixes: a8ac2961148e ("sh: Avoid using IRQ0 on SH3 and SH4")
Signed-off-by: Artur Rojek <contact@artur-rojek.eu>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
Link: https://lore.kernel.org/r/20230710233132.69734-1-contact@artur-rojek.eu
Signed-off-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>

diff --git a/arch/sh/cchips/Kconfig b/arch/sh/cchips/Kconfig
index efde2ed..9659a0b 100644 (file)
--- a/arch/sh/cchips/Kconfig
+++ b/arch/sh/cchips/Kconfig
@@ -29,9 +29,9 @@ endchoice
 config HD64461_IRQ
        int "HD64461 IRQ"
        depends on HD64461
-       default "36"
+       default "52"
        help
-         The default setting of the HD64461 IRQ is 36.
+         The default setting of the HD64461 IRQ is 52.
 
          Do not change this unless you know what you are doing.
 

diff --git a/arch/sh/include/asm/hd64461.h b/arch/sh/include/asm/hd64461.h
index afb24cb..d2c485f 100644 (file)
--- a/arch/sh/include/asm/hd64461.h
+++ b/arch/sh/include/asm/hd64461.h
@@ -229,7 +229,7 @@
 #define        HD64461_NIMR            HD64461_IO_OFFSET(0x5002)
 
 #define        HD64461_IRQBASE         OFFCHIP_IRQ_BASE
-#define        OFFCHIP_IRQ_BASE        64
+#define        OFFCHIP_IRQ_BASE        (64 + 16)
 #define        HD64461_IRQ_NUM         16
 
 #define        HD64461_IRQ_UART        (HD64461_IRQBASE+5)