mirror of
https://github.com/torvalds/linux.git
synced 2024-11-15 00:21:59 +00:00
ed72af3a8c
Trivial fix to spelling mistake "Mananger" to "Manager" in error message Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Dinh Nguyen <dinguyen@opensource.altera.com>
91 lines
2.6 KiB
C
91 lines
2.6 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>
|
|
|
|
#include "core.h"
|
|
|
|
/* A10 System Manager L2 ECC Control register */
|
|
#define A10_MPU_CTRL_L2_ECC_OFST 0x0
|
|
#define A10_MPU_CTRL_L2_ECC_EN BIT(0)
|
|
|
|
/* A10 System Manager Global IRQ Mask register */
|
|
#define A10_SYSMGR_ECC_INTMASK_CLR_OFST 0x98
|
|
#define A10_SYSMGR_ECC_INTMASK_CLR_L2 BIT(0)
|
|
|
|
/* A10 System Manager L2 ECC IRQ Clear register */
|
|
#define A10_SYSMGR_MPU_CLEAR_L2_ECC_OFST 0xA8
|
|
#define A10_SYSMGR_MPU_CLEAR_L2_ECC (BIT(31) | BIT(15))
|
|
|
|
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);
|
|
}
|
|
|
|
void socfpga_init_arria10_l2_ecc(void)
|
|
{
|
|
struct device_node *np;
|
|
void __iomem *mapped_l2_edac_addr;
|
|
|
|
/* Find the L2 EDAC device tree node */
|
|
np = of_find_compatible_node(NULL, NULL, "altr,socfpga-a10-l2-ecc");
|
|
if (!np) {
|
|
pr_err("Unable to find socfpga-a10-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;
|
|
}
|
|
|
|
if (!sys_manager_base_addr) {
|
|
pr_err("System Manager not mapped for L2 ECC\n");
|
|
goto exit;
|
|
}
|
|
/* Clear any pending IRQs */
|
|
writel(A10_SYSMGR_MPU_CLEAR_L2_ECC, (sys_manager_base_addr +
|
|
A10_SYSMGR_MPU_CLEAR_L2_ECC_OFST));
|
|
/* Enable ECC */
|
|
writel(A10_SYSMGR_ECC_INTMASK_CLR_L2, sys_manager_base_addr +
|
|
A10_SYSMGR_ECC_INTMASK_CLR_OFST);
|
|
writel(A10_MPU_CTRL_L2_ECC_EN, mapped_l2_edac_addr +
|
|
A10_MPU_CTRL_L2_ECC_OFST);
|
|
exit:
|
|
iounmap(mapped_l2_edac_addr);
|
|
}
|