[U-Boot] [PATCH 2/2] 8xx, kup4: add FDT support
Heiko Schocher
hs at denx.de
Wed Jul 7 15:46:37 CEST 2010
Signed-off-by: Heiko Schocher <hs at denx.de>
---
board/kup/kup4k/kup4k.c | 59 +++++++++++++++++++++++++++++++++++++++++++++++
include/configs/KUP4K.h | 4 +++
2 files changed, 63 insertions(+), 0 deletions(-)
diff --git a/board/kup/kup4k/kup4k.c b/board/kup/kup4k/kup4k.c
index 9feee68..a35e3e6 100644
--- a/board/kup/kup4k/kup4k.c
+++ b/board/kup/kup4k/kup4k.c
@@ -24,6 +24,7 @@
#include <common.h>
#include <command.h>
+#include <libfdt.h>
#include <mpc8xx.h>
#include <hwconfig.h>
#include <i2c.h>
@@ -295,4 +296,62 @@ static unsigned char swapbyte(unsigned char c)
return result;
}
+/*
+ * Device Tree Support
+ */
+#if defined(CONFIG_OF_BOARD_SETUP) && defined(CONFIG_OF_LIBFDT)
+int fdt_set_node_and_value (void *blob,
+ char *nodename,
+ char *regname,
+ void *var,
+ int size)
+{
+ int ret = 0;
+ int nodeoffset = 0;
+
+ nodeoffset = fdt_path_offset (blob, nodename);
+ if (nodeoffset >= 0) {
+ ret = fdt_setprop (blob, nodeoffset, regname, var,
+ size);
+ if (ret < 0) {
+ printf("ft_blob_update(): "
+ "cannot set %s/%s property; err: %s\n",
+ nodename, regname, fdt_strerror (ret));
+ }
+ } else {
+ printf("ft_blob_update(): "
+ "cannot find %s node err:%s\n",
+ nodename, fdt_strerror (nodeoffset));
+ }
+ return ret;
+}
+/*
+ * update "brg" property in the blob
+ */
+void ft_blob_update (void *blob, bd_t *bd)
+{
+ uchar enetaddr[6];
+ ulong brg_data = 0;
+
+ /* BRG */
+ brg_data = cpu_to_be32(bd->bi_busfreq);
+ fdt_set_node_and_value(blob,
+ "/soc/cpm", "brg-frequency",
+ &brg_data, sizeof(brg_data));
+
+ /* MAC addr */
+ if (eth_getenv_enetaddr("ethaddr", enetaddr)) {
+ fdt_set_node_and_value(blob,
+ "ethernet0", "local-mac-address",
+ enetaddr, sizeof(u8) * 6);
+ }
+
+}
+
+void ft_board_setup(void *blob, bd_t *bd)
+{
+ ft_cpu_setup(blob, bd);
+ ft_blob_update(blob, bd);
+}
+#endif /* defined(CONFIG_OF_BOARD_SETUP) && defined(CONFIG_OF_LIBFDT) */
diff --git a/include/configs/KUP4K.h b/include/configs/KUP4K.h
index 1b4c1a9..4b38210 100644
--- a/include/configs/KUP4K.h
+++ b/include/configs/KUP4K.h
@@ -520,5 +520,9 @@
#define CONFIG_SYS_DEVICE_NULLDEV 1 /* enble null device */
#define CONFIG_VERSION_VARIABLE 1
+/* pass open firmware flat tree */
+#define CONFIG_OF_LIBFDT 1
+#define CONFIG_OF_BOARD_SETUP 1
+
#endif /* __CONFIG_H */
--
1.6.2.5
--
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HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
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