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>
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 @@
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_by_compat_u32(blob, "ns16550", "clock-frequency", gd->uart_clk, 1);
- do_fixup_uart(blob, offset, i, bd);
- }
-
+#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 @@
#endif
}
}
+#endif /* USES_FDT_ALIASES */
}
#endif /* CONFIG_OF_LIBFDT */