[PATCH] ppc32: add 440ep support

Add PPC440EP core support.  PPC440EP is a PPC440-based SoC with a classic PPC
FPU and another set of peripherals.

Signed-off-by: Wade Farnsworth <wfarnsworth@mvista.com>
Signed-off-by: Matt Porter <mporter@kernel.crashing.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 12 insertions, 0 deletions

diff --git a/arch/ppc/kernel/head_44x.S b/arch/ppc/kernel/head_44x.S
index 72ee8f33bde4..69ff3a9961e8 100644
--- a/arch/ppc/kernel/head_44x.S
+++ b/arch/ppc/kernel/head_44x.S
@@ -190,7 +190,9 @@ skpinv:	addi	r4,r4,1				/* Increment */
 
         /* xlat fields */
         lis     r4,UART0_PHYS_IO_BASE@h         /* RPN depends on SoC */
+#ifndef CONFIG_440EP
         ori     r4,r4,0x0001            /* ERPN is 1 for second 4GB page */
+#endif
 
         /* attrib fields */
         li      r5,0
@@ -228,6 +230,16 @@ skpinv:	addi	r4,r4,1				/* Increment */
         lis     r4,interrupt_base@h     /* IVPR only uses the high 16-bits */
         mtspr   SPRN_IVPR,r4
 
+#ifdef CONFIG_440EP
+        /* Clear DAPUIB flag in CCR0 (enable APU between CPU and FPU) */
+        mfspr   r2,SPRN_CCR0
+        lis     r3,0xffef
+        ori     r3,r3,0xffff
+        and     r2,r2,r3
+        mtspr   SPRN_CCR0,r2
+        isync
+#endif
+
         /*
          * This is where the main kernel code starts.
          */