mirror of https://gitee.com/openkylin/linux.git
42 lines
1.2 KiB
C
42 lines
1.2 KiB
C
/*
|
|
* Copyright Altera Corporation (C) 2016. All rights reserved.
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify it
|
|
* under the terms and conditions of the GNU General Public License,
|
|
* version 2, as published by the Free Software Foundation.
|
|
*
|
|
* This program is distributed in the hope 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, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
#include <linux/io.h>
|
|
#include <linux/of_platform.h>
|
|
#include <linux/of_address.h>
|
|
|
|
void socfpga_init_l2_ecc(void)
|
|
{
|
|
struct device_node *np;
|
|
void __iomem *mapped_l2_edac_addr;
|
|
|
|
np = of_find_compatible_node(NULL, NULL, "altr,socfpga-l2-ecc");
|
|
if (!np) {
|
|
pr_err("Unable to find socfpga-l2-ecc in dtb\n");
|
|
return;
|
|
}
|
|
|
|
mapped_l2_edac_addr = of_iomap(np, 0);
|
|
of_node_put(np);
|
|
if (!mapped_l2_edac_addr) {
|
|
pr_err("Unable to find L2 ECC mapping in dtb\n");
|
|
return;
|
|
}
|
|
|
|
/* Enable ECC */
|
|
writel(0x01, mapped_l2_edac_addr);
|
|
iounmap(mapped_l2_edac_addr);
|
|
}
|