Added CONFIG_ options for bd_t and env in flat dev tree
CONFIG_OF_HAS_BD_T will put a copy of the bd_t
into the resulting flat device tree.
CONFIG_OF_HAS_UBOOT_ENV will copy the environment
variables from u-boot into the flat device tree
Patch by Kumar Gala 11 Jan 2006
diff --git a/CHANGELOG b/CHANGELOG
index c1da98f..2bdaa0c 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -2,6 +2,16 @@
Changes since U-Boot 1.1.4:
======================================================================
+* Added CONFIG_ options for bd_t and env in flat dev tree
+
+ CONFIG_OF_HAS_BD_T will put a copy of the bd_t
+ into the resulting flat device tree.
+
+ CONFIG_OF_HAS_UBOOT_ENV will copy the environment
+ variables from u-boot into the flat device tree
+
+ Patch by Kumar Gala 11 Jan 2006
+
* Add support for 28F256J3A flah (=> 64 MB) on PM520 board
* Fix compiler problem with at91rm9200dk board.
diff --git a/README b/README
index 6f61008..21f5bf0 100644
--- a/README
+++ b/README
@@ -413,6 +413,16 @@
OF_CPU - The proper name of the cpus node.
OF_TBCLK - The timebase frequency.
+ CONFIG_OF_HAS_BD_T
+
+ The resulting flat device tree will have a copy of the bd_t.
+ Space should be pre-allocated in the dts for the bd_t.
+
+ CONFIG_OF_HAS_UBOOT_ENV
+
+ The resulting flat device tree will have a copy of u-boot's
+ environment variables
+
- Serial Ports:
CFG_PL010_SERIAL
diff --git a/common/ft_build.c b/common/ft_build.c
index 65a274f..5719458 100644
--- a/common/ft_build.c
+++ b/common/ft_build.c
@@ -529,6 +529,7 @@
#define BDM(x) { .name = #x, .offset = offsetof(bd_t, bi_ ##x ) }
+#ifdef CONFIG_OF_HAS_BD_T
static const struct {
const char *name;
int offset;
@@ -574,19 +575,24 @@
#endif
BDM(baudrate),
};
+#endif
void ft_setup(void *blob, int size, bd_t * bd)
{
- DECLARE_GLOBAL_DATA_PTR;
- u8 *end;
u32 *p;
int len;
struct ft_cxt cxt;
- int i, k, nxt;
- static char tmpenv[256];
- char *s, *lval, *rval;
ulong clock;
- uint32_t v;
+#if defined(CONFIG_OF_HAS_UBOOT_ENV)
+ int k, nxt;
+#endif
+#if defined(CONFIG_OF_HAS_BD_T)
+ u8 *end;
+#endif
+#if defined(CONFIG_OF_HAS_UBOOT_ENV) || defined(CONFIG_OF_HAS_BD_T)
+ int i;
+ static char tmpenv[256];
+#endif
/* disable OF tree; booting old kernel */
if (getenv("disable_of") != NULL) {
@@ -610,9 +616,12 @@
/* back into root */
ft_backtrack_node(&cxt);
+#ifdef CONFIG_OF_HAS_UBOOT_ENV
ft_begin_node(&cxt, "u-boot-env");
for (i = 0; env_get_char(i) != '\0'; i = nxt + 1) {
+ char *s, *lval, *rval;
+
for (nxt = i; env_get_char(nxt) != '\0'; ++nxt) ;
s = tmpenv;
for (k = i; k < nxt && s < &tmpenv[sizeof(tmpenv) - 1]; ++k)
@@ -629,6 +638,7 @@
}
ft_end_node(&cxt);
+#endif
ft_begin_node(&cxt, "chosen");
@@ -647,14 +657,19 @@
ft_dump_blob(blob);
*/
+#ifdef CONFIG_OF_HAS_BD_T
/* paste the bd_t at the end of the flat tree */
end = (char *)blob +
be32_to_cpu(((struct boot_param_header *)blob)->totalsize);
memcpy(end, bd, sizeof(*bd));
+#endif
#ifdef CONFIG_PPC
+#ifdef CONFIG_OF_HAS_BD_T
for (i = 0; i < sizeof(bd_map)/sizeof(bd_map[0]); i++) {
+ uint32_t v;
+
sprintf(tmpenv, "/bd_t/%s", bd_map[i].name);
v = *(uint32_t *)((char *)bd + bd_map[i].offset);
@@ -670,6 +685,7 @@
p = ft_get_prop(blob, "/bd_t/ethspeed", &len);
if (p != NULL)
*p = cpu_to_be32((uint32_t) bd->bi_ethspeed);
+#endif
clock = bd->bi_intfreq;
p = ft_get_prop(blob, "/cpus/" OF_CPU "/clock-frequency", &len);
@@ -680,7 +696,7 @@
clock = OF_TBCLK;
p = ft_get_prop(blob, "/cpus/" OF_CPU "/timebase-frequency", &len);
if (p != NULL)
- *p = cpu_to_be32(OF_TBCLK);
+ *p = cpu_to_be32(clock);
#endif
#endif /* __powerpc__ */
diff --git a/include/configs/stxxtc.h b/include/configs/stxxtc.h
index 3ffe6b2..be6c36c 100644
--- a/include/configs/stxxtc.h
+++ b/include/configs/stxxtc.h
@@ -584,5 +584,7 @@
#define OF_CPU "PowerPC,MPC870@0"
#define OF_TBCLK (MPC8XX_HZ / 16)
+#define CONFIG_OF_HAS_BD_T 1
+#define CONFIG_OF_HAS_UBOOT_ENV 1
#endif /* __CONFIG_H */