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-rw-r--r--arch/powerpc/sysdev/cpm_common.c22
1 files changed, 17 insertions, 5 deletions
diff --git a/arch/powerpc/sysdev/cpm_common.c b/arch/powerpc/sysdev/cpm_common.c
index 0ac12e5fd8ab..911456d17713 100644
--- a/arch/powerpc/sysdev/cpm_common.c
+++ b/arch/powerpc/sysdev/cpm_common.c
@@ -28,6 +28,7 @@
#include <asm/udbg.h>
#include <asm/io.h>
#include <asm/cpm.h>
+#include <asm/fixmap.h>
#include <soc/fsl/qe/qe.h>
#include <mm/mmu_decl.h>
@@ -37,25 +38,36 @@
#endif
#ifdef CONFIG_PPC_EARLY_DEBUG_CPM
-static u32 __iomem *cpm_udbg_txdesc =
- (u32 __iomem __force *)CONFIG_PPC_EARLY_DEBUG_CPM_ADDR;
+static u32 __iomem *cpm_udbg_txdesc;
+static u8 __iomem *cpm_udbg_txbuf;
static void udbg_putc_cpm(char c)
{
- u8 __iomem *txbuf = (u8 __iomem __force *)in_be32(&cpm_udbg_txdesc[1]);
-
if (c == '\n')
udbg_putc_cpm('\r');
while (in_be32(&cpm_udbg_txdesc[0]) & 0x80000000)
;
- out_8(txbuf, c);
+ out_8(cpm_udbg_txbuf, c);
out_be32(&cpm_udbg_txdesc[0], 0xa0000001);
}
void __init udbg_init_cpm(void)
{
+#ifdef CONFIG_PPC_8xx
+ cpm_udbg_txdesc = (u32 __iomem __force *)
+ (CONFIG_PPC_EARLY_DEBUG_CPM_ADDR - PHYS_IMMR_BASE +
+ VIRT_IMMR_BASE);
+ cpm_udbg_txbuf = (u8 __iomem __force *)
+ (in_be32(&cpm_udbg_txdesc[1]) - PHYS_IMMR_BASE +
+ VIRT_IMMR_BASE);
+#else
+ cpm_udbg_txdesc = (u32 __iomem __force *)
+ CONFIG_PPC_EARLY_DEBUG_CPM_ADDR;
+ cpm_udbg_txbuf = (u8 __iomem __force *)in_be32(&cpm_udbg_txdesc[1]);
+#endif
+
if (cpm_udbg_txdesc) {
#ifdef CONFIG_CPM2
setbat(1, 0xf0000000, 0xf0000000, 1024*1024, PAGE_KERNEL_NCG);