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authorStefan Roese <sr@denx.de>2007-12-13 14:52:53 +0100
committerStefan Roese <sr@denx.de>2007-12-13 14:52:53 +0100
commit8697e6a19b10f514511b6a9c86de88bd108c4f8d (patch)
tree23a68aea2617271069d52c6ef1d49d8636160d5f
parenta449c500b1abf8d63e774145f85c35efaecef3e5 (diff)
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ppc4xx: Bring 4xx fdt support up-to-date
This patch update the 4xx fdt support. It enabled fdt booting on the AMCC Kilauea and Sequoia for now. More can follow later quite easily. Signed-off-by: Stefan Roese <sr@denx.de>
-rw-r--r--board/amcc/kilauea/kilauea.c1
-rw-r--r--board/amcc/sequoia/sequoia.c25
-rw-r--r--cpu/ppc4xx/fdt.c114
-rw-r--r--include/configs/kilauea.h3
-rw-r--r--include/configs/sequoia.h6
5 files changed, 66 insertions, 83 deletions
diff --git a/board/amcc/kilauea/kilauea.c b/board/amcc/kilauea/kilauea.c
index 96c0dd4..2ee896a 100644
--- a/board/amcc/kilauea/kilauea.c
+++ b/board/amcc/kilauea/kilauea.c
@@ -25,6 +25,7 @@
#include <ppc4xx.h>
#include <ppc405.h>
#include <libfdt.h>
+#include <fdt_support.h>
#include <asm/processor.h>
#include <asm/io.h>
diff --git a/board/amcc/sequoia/sequoia.c b/board/amcc/sequoia/sequoia.c
index 4e47ab3..f81f071 100644
--- a/board/amcc/sequoia/sequoia.c
+++ b/board/amcc/sequoia/sequoia.c
@@ -23,9 +23,11 @@
*/
#include <common.h>
+#include <libfdt.h>
+#include <fdt_support.h>
+#include <ppc440.h>
#include <asm/processor.h>
#include <asm/io.h>
-#include <ppc440.h>
DECLARE_GLOBAL_DATA_PTR;
@@ -583,3 +585,24 @@ int post_hotkeys_pressed(void)
return 0; /* No hotkeys supported */
}
#endif /* CONFIG_POST */
+
+#if defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP)
+void ft_board_setup(void *blob, bd_t *bd)
+{
+ u32 val[4];
+ int rc;
+
+ ft_cpu_setup(blob, bd);
+
+ /* Fixup NOR mapping */
+ val[0] = 0; /* chip select number */
+ val[1] = 0; /* always 0 */
+ val[2] = gd->bd->bi_flashstart;
+ val[3] = gd->bd->bi_flashsize;
+ rc = fdt_find_and_setprop(blob, "/plb/opb/ebc", "ranges",
+ val, sizeof(val), 1);
+ if (rc)
+ printf("Unable to update property NOR mapping, err=%s\n",
+ fdt_strerror(rc));
+}
+#endif /* defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP) */
diff --git a/cpu/ppc4xx/fdt.c b/cpu/ppc4xx/fdt.c
index dcedbbb..3ef3000 100644
--- a/cpu/ppc4xx/fdt.c
+++ b/cpu/ppc4xx/fdt.c
@@ -35,25 +35,18 @@
#if defined(CONFIG_OF_LIBFDT)
#include <libfdt.h>
#include <libfdt_env.h>
+#include <fdt_support.h>
DECLARE_GLOBAL_DATA_PTR;
-static void do_fixup(void *fdt, const char *node, const char *prop,
- const void *val, int len, int create)
-{
-#if defined(DEBUG)
- int i;
- debug("Updating property '%s/%s' = ", node, prop);
- for (i = 0; i < len; i++)
- debug(" %.2x", *(u8*)(val+i));
- debug("(%d)\n", *(u32 *)val);
-#endif
- int rc = fdt_find_and_setprop(fdt, node, prop, val, len, create);
- if (rc)
- printf("Unable to update property %s:%s, err=%s\n",
- node, prop, fdt_strerror(rc));
-}
+/*
+ * The aliases needed for this generic etherne MAC address
+ * fixup function are not in place yet. So don't use this
+ * approach for now. This will be enabled later.
+ */
+#undef USES_FDT_ALIASES
+#ifndef USES_FDT_ALIASES
static void do_fixup_macaddr(void *fdt, int offset, const void *val, int i)
{
int rc;
@@ -69,87 +62,47 @@ static void do_fixup_macaddr(void *fdt, int offset, const void *val, int i)
printf("Unable to update property %s, err=%s\n",
"local-mac-address", fdt_strerror(rc));
}
-
-static void do_fixup_u32(void *fdt, const char *node, const char *prop,
- u32 val, int create)
-{
- val = cpu_to_fdt32(val);
- do_fixup(fdt, node, prop, &val, sizeof(val), create);
-}
-
-static void do_fixup_uart(void *fdt, int offset, int i, bd_t *bd)
-{
- int rc;
- u32 val;
- PPC4xx_SYS_INFO sys_info;
-
- get_sys_info(&sys_info);
-
- debug("Updating node UART%d: clock-frequency=%d\n", i, gd->uart_clk);
-
- val = cpu_to_fdt32(gd->uart_clk);
- rc = fdt_setprop(fdt, offset, "clock-frequency", &val, 4);
- if (rc)
- printf("Unable to update node UART, err=%s\n", fdt_strerror(rc));
-
- val = cpu_to_fdt32(bd->bi_baudrate);
- rc = fdt_setprop(fdt, offset, "current-speed", &val, 4);
- if (rc)
- printf("Unable to update node UART, err=%s\n", fdt_strerror(rc));
-}
+#endif /* USES_FDT_ALIASES */
void ft_cpu_setup(void *blob, bd_t *bd)
{
- char * cpu_path = "/cpus/" OF_CPU;
+ char *cpu_path = "/cpus/" OF_CPU;
sys_info_t sys_info;
int offset;
int i;
- int tmp[2];
- get_sys_info (&sys_info);
+ get_sys_info(&sys_info);
- do_fixup_u32(blob, cpu_path, "timebase-frequency", bd->bi_intfreq, 1);
- do_fixup_u32(blob, cpu_path, "clock-frequency", bd->bi_intfreq, 1);
- do_fixup_u32(blob, "/plb", "clock-frequency", sys_info.freqPLB, 1);
- do_fixup_u32(blob, "/plb/opb", "clock-frequency", sys_info.freqOPB, 1);
- do_fixup_u32(blob, "/plb/opb/ebc", "clock-frequency", sys_info.freqEBC, 1);
-
- /* update, or add and update /memory node */
- offset = fdt_find_node_by_path(blob, "/memory");
- if (offset < 0) {
- offset = fdt_add_subnode(blob, 0, "memory");
- if (offset < 0)
- debug("failed to add /memory node: %s\n",
- fdt_strerror(offset));
- }
- if (offset >= 0) {
- fdt_setprop(blob, offset, "device_type",
- "memory", sizeof("memory"));
- tmp[0] = cpu_to_fdt32(bd->bi_memstart);
- tmp[1] = cpu_to_fdt32(bd->bi_memsize);
- fdt_setprop(blob, offset, "reg", tmp, sizeof(tmp));
- debug("Updating /memory node to %d:%d\n",
- bd->bi_memstart, bd->bi_memsize);
- }
+ do_fixup_by_path_u32(blob, cpu_path, "timebase-frequency", bd->bi_intfreq, 1);
+ do_fixup_by_path_u32(blob, cpu_path, "clock-frequency", bd->bi_intfreq, 1);
+ do_fixup_by_path_u32(blob, "/plb", "clock-frequency", sys_info.freqPLB, 1);
+ do_fixup_by_path_u32(blob, "/plb/opb", "clock-frequency", sys_info.freqOPB, 1);
+ do_fixup_by_path_u32(blob, "/plb/opb/ebc", "clock-frequency",
+ sys_info.freqEBC, 1);
+ fdt_fixup_memory(blob, (u64)bd->bi_memstart, (u64)bd->bi_memsize);
/*
* Setup all baudrates for the UARTs
*/
- offset = 0;
- for (i = 0; i < 4; i++) {
- offset = fdt_find_node_by_type(blob, offset, "serial");
- if (offset < 0)
- break;
-
- do_fixup_uart(blob, offset, i, bd);
- }
+ do_fixup_by_compat_u32(blob, "ns16550", "clock-frequency", gd->uart_clk, 1);
+#ifdef USES_FDT_ALIASES
/*
- * Setup all MAC addresses in fdt
+ * The aliases needed for this generic etherne MAC address
+ * fixup function are not in place yet. So don't use this
+ * approach for now. This will be enabled later.
*/
- offset = 0;
+ fdt_fixup_ethernet(blob, bd);
+#else
+ offset = -1;
for (i = 0; i < 4; i++) {
- offset = fdt_find_node_by_type(blob, offset, "network");
+ /*
+ * FIXME: This will cause problems with emac3 compatible
+ * devices, like on 405GP. But hopefully when we deal
+ * with those devices, the aliases stuff will be in
+ * place.
+ */
+ offset = fdt_node_offset_by_compatible(blob, offset, "ibm,emac4");
if (offset < 0)
break;
@@ -174,5 +127,6 @@ void ft_cpu_setup(void *blob, bd_t *bd)
#endif
}
}
+#endif /* USES_FDT_ALIASES */
}
#endif /* CONFIG_OF_LIBFDT */
diff --git a/include/configs/kilauea.h b/include/configs/kilauea.h
index e3f24a44..bec9fde 100644
--- a/include/configs/kilauea.h
+++ b/include/configs/kilauea.h
@@ -519,7 +519,6 @@
/* pass open firmware flat tree */
#define CONFIG_OF_LIBFDT 1
#define CONFIG_OF_BOARD_SETUP 1
-
-#define OF_CPU "PowerPC,405EX@0"
+#define OF_CPU "cpu@0"
#endif /* __CONFIG_H */
diff --git a/include/configs/sequoia.h b/include/configs/sequoia.h
index 2af675a..58acbc0 100644
--- a/include/configs/sequoia.h
+++ b/include/configs/sequoia.h
@@ -487,4 +487,10 @@
#define CONFIG_KGDB_BAUDRATE 230400 /* speed to run kgdb serial port */
#define CONFIG_KGDB_SER_INDEX 2 /* which serial port to use */
#endif
+
+/* pass open firmware flat tree */
+#define CONFIG_OF_LIBFDT 1
+#define CONFIG_OF_BOARD_SETUP 1
+#define OF_CPU "cpu@0"
+
#endif /* __CONFIG_H */