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authorJames Hogan <james.hogan@imgtec.com>2015-02-02 11:45:10 (GMT)
committerRalf Baechle <ralf@linux-mips.org>2015-03-31 10:04:12 (GMT)
commit296b7c68c0b675b2a9fd44290b8d18719afc9abf (patch)
treec4fbcbe6b0dbcea9cd6114c4f8ef0b2ac52e8f97 /arch/mips/mti-malta
parent8286ae03308c6f97f346f9f8cb9174b04969add5 (diff)
downloadlinux-296b7c68c0b675b2a9fd44290b8d18719afc9abf.tar.xz
MIPS: Malta: Implement mips_cdmm_phys_base()
Implement mips_cdmm_phys_base() for Malta, returning the physical base address 0x1fc10000 which is "typically unused". This allows the Common Device Memory Map (CDMM) region to be mapped, and devices in that region (such as the Fast Debug Channel (FDC) hardware for communication over EJTAG) to be discovered. Signed-off-by: James Hogan <james.hogan@imgtec.com> Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/9177/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips/mti-malta')
-rw-r--r--arch/mips/mti-malta/malta-memory.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/arch/mips/mti-malta/malta-memory.c b/arch/mips/mti-malta/malta-memory.c
index 8fddd2cd..32c27cb 100644
--- a/arch/mips/mti-malta/malta-memory.c
+++ b/arch/mips/mti-malta/malta-memory.c
@@ -16,6 +16,7 @@
#include <linux/string.h>
#include <asm/bootinfo.h>
+#include <asm/cdmm.h>
#include <asm/maar.h>
#include <asm/sections.h>
#include <asm/fw/fw.h>
@@ -196,3 +197,9 @@ unsigned platform_maar_init(unsigned num_pairs)
return maar_config(cfg, num_cfg, num_pairs);
}
+
+phys_addr_t mips_cdmm_phys_base(void)
+{
+ /* This address is "typically unused" */
+ return 0x1fc10000;
+}