linux-kernel - [PATCH 1/2] m68k/mvme147: Fix SCSI IRQ numbers

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Message-ID: <20240903135857.455818-1-daniel@0x0f.com>
Date: Tue,  3 Sep 2024 22:58:56 +0900
From: Daniel Palmer <daniel@...f.com>
To: linux-m68k@...ts.linux-m68k.org,
	linux-scsi@...r.kernel.org,
	geert@...ux-m68k.org,
	James.Bottomley@...senPartnership.com,
	martin.petersen@...cle.com
Cc: linux-kernel@...r.kernel.org,
	Daniel Palmer <daniel@...f.com>
Subject: [PATCH 1/2] m68k/mvme147: Fix SCSI IRQ numbers

Sometime in the long long ago the m68k IRQ code was refactored
and the interrupt numbers for SCSI on this board ended up being
wrong and SCSI hasn't worked for a few decades...

The PCC adds 0x40 to the vector for its interrupts so they
end up in the user interrupts naturally, the kernel number
should be the kernel offset for user interrupt numbers +
the PCC interrupt number. Basically they are 0x40 off right now.

Fixes: 200a3d352cd5 ("[PATCH] m68k: convert VME irq code")
Signed-off-by: Daniel Palmer <daniel@...f.com>
---
 arch/m68k/include/asm/mvme147hw.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/m68k/include/asm/mvme147hw.h b/arch/m68k/include/asm/mvme147hw.h
index e28eb1c0e0bf..aa9bb31d1c27 100644
--- a/arch/m68k/include/asm/mvme147hw.h
+++ b/arch/m68k/include/asm/mvme147hw.h
@@ -93,8 +93,8 @@ struct pcc_regs {
 #define M147_SCC_B_ADDR		0xfffe3000
 #define M147_SCC_PCLK		5000000
 
-#define MVME147_IRQ_SCSI_PORT	(IRQ_USER+0x45)
-#define MVME147_IRQ_SCSI_DMA	(IRQ_USER+0x46)
+#define MVME147_IRQ_SCSI_PORT	(IRQ_USER+0x5)
+#define MVME147_IRQ_SCSI_DMA	(IRQ_USER+0x6)
 
 /* SCC interrupts, for MVME147 */
 
-- 
2.43.0