[lantiq] adds 3.3 patches and files

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@31307 3c298f89-4303-0410-b956-a3cf2f4a3e73

1 files changed, 73 insertions, 0 deletions

diff --git a/target/linux/lantiq/patches-3.3/0004-MIPS-lantiq-make-irq.c-support-the-FALC-ON.patch b/target/linux/lantiq/patches-3.3/0004-MIPS-lantiq-make-irq.c-support-the-FALC-ON.patch
new file mode 100644
index 000000000..f313ff30d
--- /dev/null
+++ b/target/linux/lantiq/patches-3.3/0004-MIPS-lantiq-make-irq.c-support-the-FALC-ON.patch
@@ -0,0 +1,73 @@
+From 9eabaa2969af9aa157d50b7cfbb447f65db95f06 Mon Sep 17 00:00:00 2001
+From: John Crispin <blogic@openwrt.org>
+Date: Thu, 11 Aug 2011 12:25:55 +0200
+Subject: [PATCH 04/70] MIPS: lantiq: make irq.c support the FALC-ON
+
+There are minor differences in how irqs work on xway and falcon socs.
+Xway needs 2 quirks that we need to disable for falcon to also work with
+this code.
+
+* EBU irq does not need to send a special ack to the EBU
+* The EIU does not exist
+
+Signed-off-by: Thomas Langer <thomas.langer@lantiq.com>
+Signed-off-by: John Crispin <blogic@openwrt.org>
+---
+ arch/mips/lantiq/irq.c |   24 +++++++++++++-----------
+ 1 files changed, 13 insertions(+), 11 deletions(-)
+
+diff --git a/arch/mips/lantiq/irq.c b/arch/mips/lantiq/irq.c
+index d673731..f56bcce 100644
+--- a/arch/mips/lantiq/irq.c
++++ b/arch/mips/lantiq/irq.c
+@@ -195,7 +195,7 @@ static void ltq_hw_irqdispatch(int module)
+ 	do_IRQ((int)irq + INT_NUM_IM0_IRL0 + (INT_NUM_IM_OFFSET * module));
+ 
+ 	/* if this is a EBU irq, we need to ack it or get a deadlock */
+-	if ((irq == LTQ_ICU_EBU_IRQ) && (module == 0))
++	if ((irq == LTQ_ICU_EBU_IRQ) && (module == 0) && LTQ_EBU_PCC_ISTAT)
+ 		ltq_ebu_w32(ltq_ebu_r32(LTQ_EBU_PCC_ISTAT) | 0x10,
+ 			LTQ_EBU_PCC_ISTAT);
+ }
+@@ -259,17 +259,19 @@ void __init arch_init_irq(void)
+ 	if (!ltq_icu_membase)
+ 		panic("Failed to remap icu memory");
+ 
+-	if (insert_resource(&iomem_resource, &ltq_eiu_resource) < 0)
+-		panic("Failed to insert eiu memory");
++	if (LTQ_EIU_BASE_ADDR) {
++		if (insert_resource(&iomem_resource, &ltq_eiu_resource) < 0)
++			panic("Failed to insert eiu memory\n");
+ 
+-	if (request_mem_region(ltq_eiu_resource.start,
+-			resource_size(&ltq_eiu_resource), "eiu") < 0)
+-		panic("Failed to request eiu memory");
++		if (request_mem_region(ltq_eiu_resource.start,
++				resource_size(&ltq_eiu_resource), "eiu") < 0)
++			panic("Failed to request eiu memory\n");
+ 
+-	ltq_eiu_membase = ioremap_nocache(ltq_eiu_resource.start,
++		ltq_eiu_membase = ioremap_nocache(ltq_eiu_resource.start,
+ 				resource_size(&ltq_eiu_resource));
+-	if (!ltq_eiu_membase)
+-		panic("Failed to remap eiu memory");
++		if (!ltq_eiu_membase)
++			panic("Failed to remap eiu memory\n");
++	}
+ 
+ 	/* make sure all irqs are turned off by default */
+ 	for (i = 0; i < 5; i++)
+@@ -295,8 +297,8 @@ void __init arch_init_irq(void)
+ 
+ 	for (i = INT_NUM_IRQ0;
+ 		i <= (INT_NUM_IRQ0 + (5 * INT_NUM_IM_OFFSET)); i++)
+-		if ((i == LTQ_EIU_IR0) || (i == LTQ_EIU_IR1) ||
+-			(i == LTQ_EIU_IR2))
++		if (((i == LTQ_EIU_IR0) || (i == LTQ_EIU_IR1) ||
++			(i == LTQ_EIU_IR2)) && LTQ_EIU_BASE_ADDR)
+ 			irq_set_chip_and_handler(i, &ltq_eiu_type,
+ 				handle_level_irq);
+ 		/* EIU3-5 only exist on ar9 and vr9 */
+-- 
+1.7.9.1
+