mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-12-14 22:44:27 +08:00
56 lines
1.3 KiB
C
56 lines
1.3 KiB
C
|
/*
|
||
|
|
* Code commons to all DaVinci SoCs.
|
||
|
|
*
|
||
|
|
* Author: Mark A. Greer <mgreer@mvista.com>
|
||
|
|
*
|
||
|
|
* 2009 (c) MontaVista Software, Inc. This file is licensed under
|
||
|
|
* the terms of the GNU General Public License version 2. This program
|
||
|
|
* is licensed "as is" without any warranty of any kind, whether express
|
||
|
|
* or implied.
|
||
|
|
*/
|
||
|
|
#include <linux/module.h>
|
||
|
|
#include <linux/io.h>
|
||
|
|
|
||
|
|
#include <asm/tlb.h>
|
||
|
|
#include <asm/mach/map.h>
|
||
|
|
|
||
|
|
#include <mach/common.h>
|
||
|
|
|
||
|
|
struct davinci_soc_info davinci_soc_info;
|
||
|
|
EXPORT_SYMBOL(davinci_soc_info);
|
||
|
|
|
||
|
|
void __init davinci_common_init(struct davinci_soc_info *soc_info)
|
||
|
|
{
|
||
|
|
int ret;
|
||
|
|
|
||
|
|
if (!soc_info) {
|
||
|
|
ret = -EINVAL;
|
||
|
|
goto err;
|
||
|
|
}
|
||
|
|
|
||
|
|
memcpy(&davinci_soc_info, soc_info, sizeof(struct davinci_soc_info));
|
||
|
|
|
||
|
|
if (davinci_soc_info.io_desc && (davinci_soc_info.io_desc_num > 0))
|
||
|
|
iotable_init(davinci_soc_info.io_desc,
|
||
|
|
davinci_soc_info.io_desc_num);
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Normally devicemaps_init() would flush caches and tlb after
|
||
|
|
* mdesc->map_io(), but we must also do it here because of the CPU
|
||
|
|
* revision check below.
|
||
|
|
*/
|
||
|
|
local_flush_tlb_all();
|
||
|
|
flush_cache_all();
|
||
|
|
|
||
|
|
/*
|
||
|
|
* We want to check CPU revision early for cpu_is_xxxx() macros.
|
||
|
|
* IO space mapping must be initialized before we can do that.
|
||
|
|
*/
|
||
|
|
davinci_check_revision();
|
||
|
|
|
||
|
|
return;
|
||
|
|
|
||
|
|
err:
|
||
|
|
pr_err("davinci_common_init: SoC Initialization failed\n");
|
||
|
|
}
|