openwrt/target/linux/brcm47xx/patches-4.14/610-pci_ide_fix.patch
Paul Wassi de79f4ab88 brcm47xx: add kernel 4.14 support
Add patches for 4.14, drop patch 030 since it's already included
upstream.

Tested on:
1) WRT54GL (with RAM upgraded to 32 MiB)
2) WL500gPv2 (with RAM upgraded to 64 MiB)
3) BCM47186B0 SoC board
4) BCM4706 SoC board

Signed-off-by: Paul Wassi <p.wassi@gmx.at>
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
2018-04-03 22:57:10 +02:00

42 lines
1.2 KiB
Diff

From: b.sander
Subject: [PATCH] pci: IDE fix
These are standard probing messages when using pdc202xx_old:
pdc202xx_old 0000:00:01.0: IDE controller (0x105a:0x0d30 rev 0x02)
PCI: Enabling device 0000:00:01.0 (0004 -> 0007)
PCI: Fixing up device 0000:00:01.0
0000:00:01.0: (U)DMA Burst Bit DISABLED Primary PCI Mode Secondary PCI Mode.
0000:00:01.0: FORCING BURST BIT 0x00->0x01 ACTIVE
pdc202xx_old 0000:00:01.0: 100% native mode on irq 6
With the default MAX_HWIFS value after above we get:
ide2: BM-DMA at 0x0400-0x0407
ide3: BM-DMA at 0x0408-0x040f
Probing IDE interface ide2...
hde: CF500, CFA DISK drive
As you can see it's ide2 + ide3 and hde.
With this patch applied we get:
ide0: BM-DMA at 0x0400-0x0407
ide1: BM-DMA at 0x0408-0x040f
Probing IDE interface ide0...
hda: CF500, CFA DISK drive
This fixes OpenWrt ticket #7061: https://dev.openwrt.org/ticket/7061
---
--- a/include/linux/ide.h
+++ b/include/linux/ide.h
@@ -241,7 +241,11 @@ static inline void ide_std_init_ports(st
hw->io_ports.ctl_addr = ctl_addr;
}
+#if defined CONFIG_BCM47XX
+# define MAX_HWIFS 2
+#else
#define MAX_HWIFS 10
+#endif
/*
* Now for the data we need to maintain per-drive: ide_drive_t