mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-24 13:20:23 +07:00
d2912cb15b
Based on 2 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 as published by the free software foundation this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 as published by the free software foundation # extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 4122 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Enrico Weigelt <info@metux.net> Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190604081206.933168790@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
55 lines
966 B
C
55 lines
966 B
C
// SPDX-License-Identifier: GPL-2.0-only
|
|
/*
|
|
* Freescale SOC support functions
|
|
*
|
|
* Author: Scott Wood <scottwood@freescale.com>
|
|
*
|
|
* Copyright (c) 2007 Freescale Semiconductor, Inc.
|
|
*/
|
|
|
|
#include "ops.h"
|
|
#include "types.h"
|
|
#include "fsl-soc.h"
|
|
#include "stdio.h"
|
|
|
|
static u32 prop_buf[MAX_PROP_LEN / 4];
|
|
|
|
u32 *fsl_get_immr(void)
|
|
{
|
|
void *soc;
|
|
unsigned long ret = 0;
|
|
|
|
soc = find_node_by_devtype(NULL, "soc");
|
|
if (soc) {
|
|
int size;
|
|
u32 naddr;
|
|
|
|
size = getprop(soc, "#address-cells", prop_buf, MAX_PROP_LEN);
|
|
if (size == 4)
|
|
naddr = prop_buf[0];
|
|
else
|
|
naddr = 2;
|
|
|
|
if (naddr != 1 && naddr != 2)
|
|
goto err;
|
|
|
|
size = getprop(soc, "ranges", prop_buf, MAX_PROP_LEN);
|
|
|
|
if (size < 12)
|
|
goto err;
|
|
if (prop_buf[0] != 0)
|
|
goto err;
|
|
if (naddr == 2 && prop_buf[1] != 0)
|
|
goto err;
|
|
|
|
if (!dt_xlate_addr(soc, prop_buf + naddr, 8, &ret))
|
|
ret = 0;
|
|
}
|
|
|
|
err:
|
|
if (!ret)
|
|
printf("fsl_get_immr: Failed to find immr base\r\n");
|
|
|
|
return (u32 *)ret;
|
|
}
|