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authorRafał Miłecki <rafal@milecki.pl>2020-03-10 15:46:49 +0100
committerRafał Miłecki <rafal@milecki.pl>2020-03-10 15:50:55 +0100
commitd369d92fc7ed2970540235b27441f75a81ef171b (patch)
tree248c5980fda5e8631c4c7b58a2bf55756e475b1d /target/linux/bcm47xx/patches-5.4/610-pci_ide_fix.patch
parent5c98041d5a054bfe68070bbfa6fdeab63e6586fc (diff)
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bcm47xx: add support for kernel 5.4
Ethernet, switch, LEDs, buttons, USB, sysupgrade & LuCI were successfully tested on BCM4706. WARNING: Hack for BCM4710 adding BCM4710_PROTECTED_FILL_TLB() to the local_r4k_flush_cache_sigtramp() could not be ported. That function has been dropped in: commit adcc81f148d7 ("MIPS: math-emu: Write-protect delay slot emulation pages") commit 3315b6b336c8 ("MIPS: Delete unused flush_cache_sigtramp()") it's unsure if that chipset will still work reliably. Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Diffstat (limited to 'target/linux/bcm47xx/patches-5.4/610-pci_ide_fix.patch')
-rw-r--r--target/linux/bcm47xx/patches-5.4/610-pci_ide_fix.patch41
1 files changed, 41 insertions, 0 deletions
diff --git a/target/linux/bcm47xx/patches-5.4/610-pci_ide_fix.patch b/target/linux/bcm47xx/patches-5.4/610-pci_ide_fix.patch
new file mode 100644
index 0000000000..520828e8e5
--- /dev/null
+++ b/target/linux/bcm47xx/patches-5.4/610-pci_ide_fix.patch
@@ -0,0 +1,41 @@
+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
+@@ -236,7 +236,11 @@ 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