powerpc/mpic: Save computed phys_addr for board-specific code

The MPIC code can already perform an automatic OF address translation
step as part of mpic_alloc(), but several boards need to use that base
address when they perform mpic_assign_isu().

The easiest solution is to save the computed physical address into the
"struct mpic" for later use by the board code.

Signed-off-by: Kyle Moffett <Kyle.D.Moffett@boeing.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

1 files changed, 3 insertions, 12 deletions

diff --git a/arch/powerpc/platforms/embedded6xx/holly.c b/arch/powerpc/platforms/embedded6xx/holly.c
index 2e9bcf6444c8..d4fb41e29c35 100644
--- a/arch/powerpc/platforms/embedded6xx/holly.c
+++ b/arch/powerpc/platforms/embedded6xx/holly.c
@@ -148,7 +148,6 @@ static void __init holly_setup_arch(void)
 static void __init holly_init_IRQ(void)
 {
         struct mpic *mpic;
-        phys_addr_t mpic_paddr = 0;
         struct device_node *tsi_pic;
 #ifdef CONFIG_PCI
         unsigned int cascade_pci_irq;
@@ -157,20 +156,12 @@ static void __init holly_init_IRQ(void)
 #endif
 
         tsi_pic = of_find_node_by_type(NULL, "open-pic");
-        if (tsi_pic) {
-                unsigned int size;
-                const void *prop = of_get_property(tsi_pic, "reg", &size);
-                mpic_paddr = of_translate_address(tsi_pic, prop);
-        }
-
-        if (mpic_paddr == 0) {
+        if (!tsi_pic) {
                 printk(KERN_ERR "%s: No tsi108 PIC found !\n", __func__);
                 return;
         }
 
-        pr_debug("%s: tsi108 pic phys_addr = 0x%x\n", __func__, (u32) mpic_paddr);
-
-        mpic = mpic_alloc(tsi_pic, mpic_paddr,
+        mpic = mpic_alloc(tsi_pic, 0,
                         MPIC_PRIMARY | MPIC_BIG_ENDIAN | MPIC_WANTS_RESET |
                         MPIC_SPV_EOI | MPIC_NO_PTHROU_DIS | MPIC_REGSET_TSI108,
                         24,
@@ -179,7 +170,7 @@ static void __init holly_init_IRQ(void)
 
         BUG_ON(mpic == NULL);
 
-        mpic_assign_isu(mpic, 0, mpic_paddr + 0x100);
+        mpic_assign_isu(mpic, 0, mpic->paddr + 0x100);
 
         mpic_init(mpic);