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[PATCH v2 2/8] q800: move VIA1 IRQ from level 1 to level 6
From: |
Mark Cave-Ayland |
Subject: |
[PATCH v2 2/8] q800: move VIA1 IRQ from level 1 to level 6 |
Date: |
Wed, 20 Oct 2021 14:41:25 +0100 |
On a Quadra 800 machine Linux sets via_alt_mapping to 1 and clears port B bit 6
to
ensure that the VIA1 IRQ is delivered at level 6 rather than level 1. Even
though
QEMU doesn't yet emulate this behaviour, Linux still installs the VIA1 level 1
IRQ
handler regardless of the value of via_alt_mapping which is why the kernel has
been
able to boot until now.
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
---
hw/m68k/q800.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/hw/m68k/q800.c b/hw/m68k/q800.c
index fd4855047e..15f3067811 100644
--- a/hw/m68k/q800.c
+++ b/hw/m68k/q800.c
@@ -284,7 +284,7 @@ static void q800_init(MachineState *machine)
sysbus = SYS_BUS_DEVICE(via1_dev);
sysbus_realize_and_unref(sysbus, &error_fatal);
sysbus_mmio_map(sysbus, 1, VIA_BASE);
- sysbus_connect_irq(sysbus, 0, qdev_get_gpio_in(glue, 0));
+ sysbus_connect_irq(sysbus, 0, qdev_get_gpio_in(glue, 5));
adb_bus = qdev_get_child_bus(via1_dev, "adb.0");
dev = qdev_new(TYPE_ADB_KEYBOARD);
--
2.20.1
- [PATCH v2 0/8] q800: GLUE updates for A/UX mode, Mark Cave-Ayland, 2021/10/20
- [PATCH v2 1/8] mac_via: update comment for VIA1B_vMystery bit, Mark Cave-Ayland, 2021/10/20
- [PATCH v2 2/8] q800: move VIA1 IRQ from level 1 to level 6,
Mark Cave-Ayland <=
- [PATCH v2 3/8] q800: use GLUE IRQ numbers instead of IRQ level for GLUE IRQs, Mark Cave-Ayland, 2021/10/20
- [PATCH v2 5/8] q800: wire up auxmode GPIO to GLUE, Mark Cave-Ayland, 2021/10/20
- [PATCH v2 4/8] mac_via: add GPIO for A/UX mode, Mark Cave-Ayland, 2021/10/20
- [PATCH v2 6/8] q800: route SONIC on-board Ethernet IRQ via nubus IRQ 9 in classic mode, Mark Cave-Ayland, 2021/10/20
- [PATCH v2 8/8] q800: add NMI handler, Mark Cave-Ayland, 2021/10/20
- [PATCH v2 7/8] q800: wire up remaining IRQs in classic mode, Mark Cave-Ayland, 2021/10/20