[PATCH] Use mpc8641hpcn PIC base address from dev tree.

[Jon Loeliger]

After going through the trouble of setting up the PIC base
address in the pic at 40000 device tree node, use it instead
of the obsolete hard-coded value.

Signed-off-by: Jon Loeliger <jdl at freescale.com>
---
 arch/powerpc/platforms/86xx/mpc86xx_hpcn.c |   19 +++++++++----------
 include/asm-powerpc/mpc86xx.h              |    1 -
 2 files changed, 9 insertions(+), 11 deletions(-)

diff --git a/arch/powerpc/platforms/86xx/mpc86xx_hpcn.c b/arch/powerpc/platforms/86xx/mpc86xx_hpcn.c
index 496cc7c..8e43310 100644
--- a/arch/powerpc/platforms/86xx/mpc86xx_hpcn.c
+++ b/arch/powerpc/platforms/86xx/mpc86xx_hpcn.c
@@ -68,37 +68,36 @@ mpc86xx_hpcn_init_irq(void)
 {
 	struct mpic *mpic1;
 	struct device_node *np;
-	phys_addr_t openpic_paddr;
+	struct resource res;
 #ifdef CONFIG_PCI
 	struct device_node *cascade_node = NULL;
 	int cascade_irq;
 #endif
 
+	/* Determine PIC address. */
 	np = of_find_node_by_type(NULL, "open-pic");
 	if (np == NULL)
 		return;
-
-	/* Determine the Physical Address of the OpenPIC regs */
-	openpic_paddr = get_immrbase() + MPC86xx_OPENPIC_OFFSET;
+	of_address_to_resource(np, 0, &res);
 
 	/* Alloc mpic structure and per isu has 16 INT entries. */
-	mpic1 = mpic_alloc(np, openpic_paddr,
+	mpic1 = mpic_alloc(np, res.start,
 			MPIC_PRIMARY | MPIC_WANTS_RESET | MPIC_BIG_ENDIAN,
 			16, NR_IRQS - 4,
 			" MPIC     ");
 	BUG_ON(mpic1 == NULL);
 
-	mpic_assign_isu(mpic1, 0, openpic_paddr + 0x10000);
+	mpic_assign_isu(mpic1, 0, res.start + 0x10000);
 
 	/* 48 Internal Interrupts */
-	mpic_assign_isu(mpic1, 1, openpic_paddr + 0x10200);
-	mpic_assign_isu(mpic1, 2, openpic_paddr + 0x10400);
-	mpic_assign_isu(mpic1, 3, openpic_paddr + 0x10600);
+	mpic_assign_isu(mpic1, 1, res.start + 0x10200);
+	mpic_assign_isu(mpic1, 2, res.start + 0x10400);
+	mpic_assign_isu(mpic1, 3, res.start + 0x10600);
 
 	/* 16 External interrupts
 	 * Moving them from [0 - 15] to [64 - 79]
 	 */
-	mpic_assign_isu(mpic1, 4, openpic_paddr + 0x10000);
+	mpic_assign_isu(mpic1, 4, res.start + 0x10000);
 
 	mpic_init(mpic1);
 
diff --git a/include/asm-powerpc/mpc86xx.h b/include/asm-powerpc/mpc86xx.h
index 2d6ad85..b85df45 100644
--- a/include/asm-powerpc/mpc86xx.h
+++ b/include/asm-powerpc/mpc86xx.h
@@ -31,7 +31,6 @@ #define CPU_ALL_RELEASED (CPU0_BOOT_RELE
 #define MCM_PORT_CONFIG_OFFSET 0x1010
 
 /* Offset from CCSRBAR */
-#define MPC86xx_OPENPIC_OFFSET	(0x40000)
 #define MPC86xx_MCM_OFFSET      (0x00000)
 #define MPC86xx_MCM_SIZE        (0x02000)
 
-- 
2006_06_07.01.gittree_pull-dirty