Patchwork [U-Boot,v8,4/5] 64bit initrd start address support

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Submitter fenghua@phytium.com.cn
Date Sept. 13, 2013, 3:24 a.m.
Message ID <1379042697-53656-5-git-send-email-fenghua@phytium.com.cn>
Download mbox | patch
Permalink /patch/274638/
State Superseded
Delegated to: Albert ARIBAUD
Headers show

Comments

fenghua@phytium.com.cn - Sept. 13, 2013, 3:24 a.m.
From: David Feng <fenghua@phytium.com.cn>

Signed-off-by: David Feng <fenghua@phytium.com.cn>
---
 common/fdt_support.c |   66 ++++++++++++++++++++++++++------------------------
 1 file changed, 34 insertions(+), 32 deletions(-)

Patch

diff --git a/common/fdt_support.c b/common/fdt_support.c
index b034c98..9bc5821 100644
--- a/common/fdt_support.c
+++ b/common/fdt_support.c
@@ -21,6 +21,34 @@ 
  */
 DECLARE_GLOBAL_DATA_PTR;
 
+/*
+ * Get cells len in bytes
+ *     if #NNNN-cells property is 2 then len is 8
+ *     otherwise len is 4
+ */
+static int get_cells_len(void *blob, char *nr_cells_name)
+{
+	const fdt32_t *cell;
+
+	cell = fdt_getprop(blob, 0, nr_cells_name, NULL);
+	if (cell && fdt32_to_cpu(*cell) == 2)
+		return 8;
+
+	return 4;
+}
+
+/*
+ * Write a 4 or 8 byte big endian cell
+ */
+static void write_cell(u8 *addr, u64 val, int size)
+{
+	int shift = (size - 1) * 8;
+	while (size-- > 0) {
+		*addr++ = (val >> shift) & 0xff;
+		shift -= 8;
+	}
+}
+
 /**
  * fdt_getprop_u32_default - Find a node and return it's property or a default
  *
@@ -131,9 +159,9 @@  static int fdt_fixup_stdout(void *fdt, int chosenoff)
 
 int fdt_initrd(void *fdt, ulong initrd_start, ulong initrd_end, int force)
 {
-	int   nodeoffset;
+	int   nodeoffset, addr_cell_len;
 	int   err, j, total;
-	fdt32_t  tmp;
+	fdt64_t  tmp;
 	const char *path;
 	uint64_t addr, size;
 
@@ -170,9 +198,11 @@  int fdt_initrd(void *fdt, ulong initrd_start, ulong initrd_end, int force)
 		return err;
 	}
 
+	addr_cell_len = get_cells_len(fdt, "#address-cells");
+
 	path = fdt_getprop(fdt, nodeoffset, "linux,initrd-start", NULL);
 	if ((path == NULL) || force) {
-		tmp = cpu_to_fdt32(initrd_start);
+		write_cell((u8 *)&tmp, initrd_start, addr_cell_len);
 		err = fdt_setprop(fdt, nodeoffset,
 			"linux,initrd-start", &tmp, sizeof(tmp));
 		if (err < 0) {
@@ -181,7 +211,7 @@  int fdt_initrd(void *fdt, ulong initrd_start, ulong initrd_end, int force)
 				fdt_strerror(err));
 			return err;
 		}
-		tmp = cpu_to_fdt32(initrd_end);
+		write_cell((u8 *)&tmp, initrd_end, addr_cell_len);
 		err = fdt_setprop(fdt, nodeoffset,
 			"linux,initrd-end", &tmp, sizeof(tmp));
 		if (err < 0) {
@@ -343,34 +373,6 @@  void do_fixup_by_compat_u32(void *fdt, const char *compat,
 	do_fixup_by_compat(fdt, compat, prop, &tmp, 4, create);
 }
 
-/*
- * Get cells len in bytes
- *     if #NNNN-cells property is 2 then len is 8
- *     otherwise len is 4
- */
-static int get_cells_len(void *blob, char *nr_cells_name)
-{
-	const fdt32_t *cell;
-
-	cell = fdt_getprop(blob, 0, nr_cells_name, NULL);
-	if (cell && fdt32_to_cpu(*cell) == 2)
-		return 8;
-
-	return 4;
-}
-
-/*
- * Write a 4 or 8 byte big endian cell
- */
-static void write_cell(u8 *addr, u64 val, int size)
-{
-	int shift = (size - 1) * 8;
-	while (size-- > 0) {
-		*addr++ = (val >> shift) & 0xff;
-		shift -= 8;
-	}
-}
-
 #ifdef CONFIG_NR_DRAM_BANKS
 #define MEMORY_BANKS_MAX CONFIG_NR_DRAM_BANKS
 #else