From 20b2b1c90177b5a60bcd7ad7f8b3e70342aa35d3 Mon Sep 17 00:00:00 2001
From: OBattler <oubattler@gmail.com>
Date: Sun, 18 May 2025 02:40:49 +0200
Subject: [PATCH] RZ-1000: Do not initialize the second IDE channel if the
 controller is single-channel.

---
 src/disk/hdc_ide_rz1000.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/disk/hdc_ide_rz1000.c b/src/disk/hdc_ide_rz1000.c
index 2c1a09e8e..e2c7179ad 100644
--- a/src/disk/hdc_ide_rz1000.c
+++ b/src/disk/hdc_ide_rz1000.c
@@ -272,7 +272,10 @@ rz1000_init(const device_t *info)
 
     dev->channels = ((info->local & 0x60000) >> 17) & 0x03;
 
-    device_add(&ide_pci_2ch_device);
+    if (dev->channels & 0x02)
+        device_add(&ide_pci_2ch_device);
+    else
+        device_add(&ide_pci_device);
 
     if (info->local & 0x80000)
         pci_add_card(PCI_ADD_NORMAL, rz1000_pci_read, rz1000_pci_write, dev, &dev->pci_slot);