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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
*/
#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>
#include <fdt_support.h>
#include <asm/4xx_pcie.h>
DECLARE_GLOBAL_DATA_PTR;
/*
* Fixup all PCIe nodes by setting the device_type property
* to "pci-endpoint" instead is "pci" for endpoint ports.
* This property will get checked later by the Linux driver
* to properly configure the PCIe port in Linux (again).
*/
void fdt_pcie_setup(void *blob)
{
const char *compat = "ibm,plb-pciex";
const char *prop = "device_type";
const char *prop_val = "pci-endpoint";
const u32 *port;
int no;
int rc;
/* Search first PCIe node */
no = fdt_node_offset_by_compatible(blob, -1, compat);
while (no != -FDT_ERR_NOTFOUND) {
port = fdt_getprop(blob, no, "port", NULL);
if (port == NULL) {
printf("WARNING: could not find port property\n");
} else {
if (is_end_point(*port)) {
rc = fdt_setprop(blob, no, prop, prop_val,
strlen(prop_val) + 1);
if (rc < 0)
printf("WARNING: could not set %s for %s: %s.\n",
prop, compat, fdt_strerror(rc));
}
}
/* Jump to next PCIe node */
no = fdt_node_offset_by_compatible(blob, no, compat);
}
}
void ft_cpu_setup(void *blob, bd_t *bd)
{
sys_info_t sys_info;
get_sys_info(&sys_info);
do_fixup_by_prop_u32(blob, "device_type", "cpu", 4, "timebase-frequency",
bd->bi_intfreq, 1);
do_fixup_by_prop_u32(blob, "device_type", "cpu", 4, "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
*/
do_fixup_by_compat_u32(blob, "ns16550", "clock-frequency", gd->uart_clk, 1);
/*
* Fixup all ethernet nodes
* Note: aliases in the dts are required for this
*/
fdt_fixup_ethernet(blob, bd);
/*
* Fixup all available PCIe nodes by setting the device_type property
*/
fdt_pcie_setup(blob);
}
#endif /* CONFIG_OF_LIBFDT */
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