resources/coreboot/default/patches: Add patch for E6400 SD card

This fixes the PCI interrupt routing tables for the E6400 so that the SD
card works. It is already merged in upstream but libreboot has not yet
updated coreboot.

1 files changed, 125 insertions, 0 deletions

diff --git a/resources/coreboot/default/patches/0023-mb-dell-e6400-acpi-Route-Ricoh-R5C847-PCI-IRQ-lines-.patch b/resources/coreboot/default/patches/0023-mb-dell-e6400-acpi-Route-Ricoh-R5C847-PCI-IRQ-lines-.patch
new file mode 100644
index 00000000..483ea0e1
--- /dev/null
+++ b/resources/coreboot/default/patches/0023-mb-dell-e6400-acpi-Route-Ricoh-R5C847-PCI-IRQ-lines-.patch
@@ -0,0 +1,125 @@
+From 5c1455495e8d2030473d8194fcf2e1d1111696b7 Mon Sep 17 00:00:00 2001
+From: Nicholas Chin <nic.c3.14@gmail.com>
+Date: Tue, 23 May 2023 20:59:56 -0600
+Subject: [PATCH] mb/dell/e6400/acpi: Route Ricoh R5C847 PCI IRQ lines as DBC
+
+Based on the schematic and vendor ASL code, PCI interrupt lines ABC of
+the Ricoh R5C847 PC Card/Media Card/FireWire controller are routed DBC.
+From lspci and the schematic this chip is PCI device 1. The original
+config copied from the T400 was routed ABCD->BCDA, causing Linux to
+issue an "irq 18: nobody cared" message when inserting an SD card.
+This is fixed by this patch and the SD card now works properly.
+
+Change-Id: Iede1de72d5369f1aebbac170792733739add3431
+Signed-off-by: Nicholas Chin <nic.c3.14@gmail.com>
+Reviewed-on: https://review.coreboot.org/c/coreboot/+/75411
+Reviewed-by: Paul Menzel <paulepanter@mailbox.org>
+Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
+Reviewed-by: Angel Pons <th3fanbus@gmail.com>
+---
+ .../dell/e6400/acpi/ich9_pci_irqs.asl         | 85 ++-----------------
+ 1 file changed, 8 insertions(+), 77 deletions(-)
+
+diff --git a/src/mainboard/dell/e6400/acpi/ich9_pci_irqs.asl b/src/mainboard/dell/e6400/acpi/ich9_pci_irqs.asl
+index 21066fbf3b..9a4cdfb75b 100644
+--- a/src/mainboard/dell/e6400/acpi/ich9_pci_irqs.asl
++++ b/src/mainboard/dell/e6400/acpi/ich9_pci_irqs.asl
+@@ -4,87 +4,18 @@
+  * 0:1e.0 PCI bridge of the ICH9
+  */
+ 
+-/* TODO: which slots are actually relevant? */
+ If (PICM) {
+ 	Return (Package() {
+-		// PCI Slot 1 routes ABCD
+-		Package() { 0x0000ffff, 0, 0, 16},
+-		Package() { 0x0000ffff, 1, 0, 17},
+-		Package() { 0x0000ffff, 2, 0, 18},
+-		Package() { 0x0000ffff, 3, 0, 19},
+-
+-		// PCI Slot 2 routes BCDA
+-		Package() { 0x0001ffff, 0, 0, 17},
+-		Package() { 0x0001ffff, 1, 0, 18},
+-		Package() { 0x0001ffff, 2, 0, 19},
+-		Package() { 0x0001ffff, 3, 0, 16},
+-
+-		// PCI Slot 3 routes CDAB
+-		Package() { 0x0002ffff, 0, 0, 18},
+-		Package() { 0x0002ffff, 1, 0, 19},
+-		Package() { 0x0002ffff, 2, 0, 16},
+-		Package() { 0x0002ffff, 3, 0, 17},
+-
+-		// PCI Slot 4 routes ABCD
+-		Package() { 0x0003ffff, 0, 0, 16},
+-		Package() { 0x0003ffff, 1, 0, 17},
+-		Package() { 0x0003ffff, 2, 0, 18},
+-		Package() { 0x0003ffff, 3, 0, 19},
+-
+-		// PCI Slot 5 routes ABCD
+-		Package() { 0x0004ffff, 0, 0, 16},
+-		Package() { 0x0004ffff, 1, 0, 17},
+-		Package() { 0x0004ffff, 2, 0, 18},
+-		Package() { 0x0004ffff, 3, 0, 19},
+-
+-		// PCI Slot 6 routes BCDA
+-		Package() { 0x0005ffff, 0, 0, 17},
+-		Package() { 0x0005ffff, 1, 0, 18},
+-		Package() { 0x0005ffff, 2, 0, 19},
+-		Package() { 0x0005ffff, 3, 0, 16},
+-
+-		// FIXME: what's this supposed to mean? (adopted from ich7)
+-		//Package() { 0x0008ffff, 0, 0, 20},
++		// PCI Device 1, Ricoh R5C847 routes DBC
++		Package() { 0x0001ffff, 0, 0, 19},
++		Package() { 0x0001ffff, 1, 0, 17},
++		Package() { 0x0001ffff, 2, 0, 18},
+ 	})
+ } Else {
+ 	Return (Package() {
+-		// PCI Slot 1 routes ABCD
+-		Package() { 0x0000ffff, 0, \_SB.PCI0.LPCB.LNKA, 0},
+-		Package() { 0x0000ffff, 1, \_SB.PCI0.LPCB.LNKB, 0},
+-		Package() { 0x0000ffff, 2, \_SB.PCI0.LPCB.LNKC, 0},
+-		Package() { 0x0000ffff, 3, \_SB.PCI0.LPCB.LNKD, 0},
+-
+-		// PCI Slot 2 routes BCDA
+-		Package() { 0x0001ffff, 0, \_SB.PCI0.LPCB.LNKB, 0},
+-		Package() { 0x0001ffff, 1, \_SB.PCI0.LPCB.LNKC, 0},
+-		Package() { 0x0001ffff, 2, \_SB.PCI0.LPCB.LNKD, 0},
+-		Package() { 0x0001ffff, 3, \_SB.PCI0.LPCB.LNKA, 0},
+-
+-		// PCI Slot 3 routes CDAB
+-		Package() { 0x0002ffff, 0, \_SB.PCI0.LPCB.LNKC, 0},
+-		Package() { 0x0002ffff, 1, \_SB.PCI0.LPCB.LNKD, 0},
+-		Package() { 0x0002ffff, 2, \_SB.PCI0.LPCB.LNKA, 0},
+-		Package() { 0x0002ffff, 3, \_SB.PCI0.LPCB.LNKB, 0},
+-
+-		// PCI Slot 4 routes ABCD
+-		Package() { 0x0003ffff, 0, \_SB.PCI0.LPCB.LNKA, 0},
+-		Package() { 0x0003ffff, 1, \_SB.PCI0.LPCB.LNKB, 0},
+-		Package() { 0x0003ffff, 2, \_SB.PCI0.LPCB.LNKC, 0},
+-		Package() { 0x0003ffff, 3, \_SB.PCI0.LPCB.LNKD, 0},
+-
+-		// PCI Slot 5 routes ABCD
+-		Package() { 0x0004ffff, 0, \_SB.PCI0.LPCB.LNKA, 0},
+-		Package() { 0x0004ffff, 1, \_SB.PCI0.LPCB.LNKB, 0},
+-		Package() { 0x0004ffff, 2, \_SB.PCI0.LPCB.LNKC, 0},
+-		Package() { 0x0004ffff, 3, \_SB.PCI0.LPCB.LNKD, 0},
+-
+-		// PCI Slot 6 routes BCDA
+-		Package() { 0x0005ffff, 0, \_SB.PCI0.LPCB.LNKB, 0},
+-		Package() { 0x0005ffff, 1, \_SB.PCI0.LPCB.LNKC, 0},
+-		Package() { 0x0005ffff, 2, \_SB.PCI0.LPCB.LNKD, 0},
+-		Package() { 0x0005ffff, 3, \_SB.PCI0.LPCB.LNKA, 0},
+-
+-		// FIXME
+-		// Package() { 0x0008ffff, 0, \_SB.PCI0.LPCB.LNKE, 0},
++		// PCI Device 1, Ricoh R5C847 routes DBC
++		Package() { 0x0001ffff, 0, \_SB.PCI0.LPCB.LNKD, 0},
++		Package() { 0x0001ffff, 1, \_SB.PCI0.LPCB.LNKB, 0},
++		Package() { 0x0001ffff, 2, \_SB.PCI0.LPCB.LNKC, 0},
+ 	})
+ }
+-- 
+2.41.0
+