[U-Boot] [PATCH 2/3] Data types defined for 64 bit physical address

Aneesh Bansal aneesh.bansal at freescale.com
Fri Jul 31 11:53:25 CEST 2015


Data types and I/O functions have been defined for
64 bit physical addresses in arm and powerpc

Signed-off-by: Aneesh Bansal <aneesh.bansal at freescale.com>
---
 arch/arm/include/asm/io.h     |  4 +++-
 arch/arm/include/asm/types.h  | 13 ++++++++-----
 arch/powerpc/include/asm/io.h | 13 +++++++++++++
 3 files changed, 24 insertions(+), 6 deletions(-)

diff --git a/arch/arm/include/asm/io.h b/arch/arm/include/asm/io.h
index bfbe0a0..09d192d 100644
--- a/arch/arm/include/asm/io.h
+++ b/arch/arm/include/asm/io.h
@@ -59,7 +59,7 @@ static inline void unmap_physmem(void *vaddr, unsigned long flags)
 
 static inline phys_addr_t virt_to_phys(void * vaddr)
 {
-	return (phys_addr_t)(vaddr);
+	return (phys_addr_t)((unsigned long)vaddr);
 }
 
 /*
@@ -183,9 +183,11 @@ static inline void __raw_readsl(unsigned long addr, void *data, int longlen)
 #define in_le32(a)	in_arch(l,le32,a)
 #define in_le16(a)	in_arch(w,le16,a)
 
+#define out_be64(a, v)	out_arch(q, be64, a, v)
 #define out_be32(a,v)	out_arch(l,be32,a,v)
 #define out_be16(a,v)	out_arch(w,be16,a,v)
 
+#define in_be64(a)	in_arch(q, be64, a)
 #define in_be32(a)	in_arch(l,be32,a)
 #define in_be16(a)	in_arch(w,be16,a)
 
diff --git a/arch/arm/include/asm/types.h b/arch/arm/include/asm/types.h
index ee77c41..d87f955 100644
--- a/arch/arm/include/asm/types.h
+++ b/arch/arm/include/asm/types.h
@@ -45,12 +45,15 @@ typedef unsigned long long u64;
 #define BITS_PER_LONG 32
 #endif	/* CONFIG_ARM64 */
 
-/* Dma addresses are 32-bits wide.  */
-
+#ifdef CONFIG_PHYS_64BIT
+typedef u64 dma_addr_t;
+typedef u64 phys_addr_t;
+typedef u64 phys_size_t;
+#else
 typedef u32 dma_addr_t;
-
-typedef unsigned long phys_addr_t;
-typedef unsigned long phys_size_t;
+typedef u32 phys_addr_t;
+typedef u32 phys_size_t;
+#endif
 
 #endif /* __KERNEL__ */
 
diff --git a/arch/powerpc/include/asm/io.h b/arch/powerpc/include/asm/io.h
index a5257e9..8c6f47e 100644
--- a/arch/powerpc/include/asm/io.h
+++ b/arch/powerpc/include/asm/io.h
@@ -246,6 +246,19 @@ extern inline void out_be32(volatile unsigned __iomem *addr, u32 val)
 	__asm__ __volatile__("sync; stw%U0%X0 %1,%0" : "=m" (*addr) : "r" (val));
 }
 
+extern inline u64 in_be64(const u64 *addr)
+{
+	return ((u64)in_be32((u32 *)addr) << 32) |
+	(in_be32((u32 *)addr + 1));
+}
+
+extern inline void out_be64(u64 *addr, u64 val)
+{
+	out_be32((u32 *)addr, (u32)(val >> 32));
+	out_be32((u32 *)addr + 1, (u32)val);
+}
+
+
 /* Clear and set bits in one shot. These macros can be used to clear and
  * set multiple bits in a register using a single call. These macros can
  * also be used to set a multiple-bit bit pattern using a mask, by
-- 
1.8.1.4



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