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-rw-r--r--arch/ppc/8xx_io/commproc.c26
1 files changed, 26 insertions, 0 deletions
diff --git a/arch/ppc/8xx_io/commproc.c b/arch/ppc/8xx_io/commproc.c
index 3b23bcb35b7..7a8722beac1 100644
--- a/arch/ppc/8xx_io/commproc.c
+++ b/arch/ppc/8xx_io/commproc.c
@@ -39,6 +39,21 @@
#include <asm/tlbflush.h>
#include <asm/rheap.h>
+#define immr_map(member) \
+({ \
+ u32 offset = offsetof(immap_t, member); \
+ void *addr = ioremap (IMAP_ADDR + offset, \
+ sizeof( ((immap_t*)0)->member)); \
+ addr; \
+})
+
+#define immr_map_size(member, size) \
+({ \
+ u32 offset = offsetof(immap_t, member); \
+ void *addr = ioremap (IMAP_ADDR + offset, size); \
+ addr; \
+})
+
static void m8xx_cpm_dpinit(void);
static uint host_buffer; /* One page of host buffer */
static uint host_end; /* end + 1 */
@@ -364,11 +379,16 @@ static rh_block_t cpm_boot_dpmem_rh_block[16];
static rh_info_t cpm_dpmem_info;
#define CPM_DPMEM_ALIGNMENT 8
+static u8* dpram_vbase;
+static uint dpram_pbase;
void m8xx_cpm_dpinit(void)
{
spin_lock_init(&cpm_dpmem_lock);
+ dpram_vbase = immr_map_size(im_cpm.cp_dpmem, CPM_DATAONLY_BASE + CPM_DATAONLY_SIZE);
+ dpram_pbase = (uint)&((immap_t *)IMAP_ADDR)->im_cpm.cp_dpmem;
+
/* Initialize the info header */
rh_init(&cpm_dpmem_info, CPM_DPMEM_ALIGNMENT,
sizeof(cpm_boot_dpmem_rh_block) /
@@ -442,3 +462,9 @@ void *cpm_dpram_addr(uint offset)
return ((immap_t *)IMAP_ADDR)->im_cpm.cp_dpmem + offset;
}
EXPORT_SYMBOL(cpm_dpram_addr);
+
+uint cpm_dpram_phys(u8* addr)
+{
+ return (dpram_pbase + (uint)(addr - dpram_vbase));
+}
+EXPORT_SYMBOL(cpm_dpram_phys);