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/*
* (C) Copyright 2007
* Stefan Roese, DENX Software Engineering, sr@denx.de.
*
* See file CREDITS for list of people who contributed to this
* project.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
/* define DEBUG for debugging output (obviously ;-)) */
#if 0
#define DEBUG
#endif
#include <common.h>
#include <watchdog.h>
#include <command.h>
#include <asm/cache.h>
#include <ppc4xx.h>
#if defined(CONFIG_OF_LIBFDT)
#include <libfdt.h>
#include <libfdt_env.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));
}
static void do_fixup_macaddr(void *fdt, int offset, const void *val, int i)
{
int rc;
debug("Updating node EMAC%d\n", i);
rc = fdt_setprop(fdt, offset, "mac-address", val, 6);
if (rc)
printf("Unable to update property %s, err=%s\n",
"mac-address", fdt_strerror(rc));
rc = fdt_setprop(fdt, offset, "local-mac-address", val, 6);
if (rc)
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));
}
void ft_cpu_setup(void *blob, bd_t *bd)
{
char * cpu_path = "/cpus/" OF_CPU;
sys_info_t sys_info;
int offset;
int i;
int tmp[2];
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);
}
/*
* 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);
}
/*
* Setup all MAC addresses in fdt
*/
offset = 0;
for (i = 0; i < 4; i++) {
offset = fdt_find_node_by_type(blob, offset, "network");
if (offset < 0)
break;
switch (i) {
case 0:
do_fixup_macaddr(blob, offset, bd->bi_enetaddr, 0);
break;
#ifdef CONFIG_HAS_ETH1
case 1:
do_fixup_macaddr(blob, offset, bd->bi_enet1addr, 1);
break;
#endif
#ifdef CONFIG_HAS_ETH2
case 2:
do_fixup_macaddr(blob, offset, bd->bi_enet2addr, 2);
break;
#endif
#ifdef CONFIG_HAS_ETH3
case 3:
do_fixup_macaddr(blob, offset, bd->bi_enet3addr, 3);
break;
#endif
}
}
}
#endif /* CONFIG_OF_LIBFDT */
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