From: John Jacques <john.jacq...@intel.com>
Axxia MTC driver changes:
- Memory initialization completion check added
- ECC error status clearing added
Signed-off-by: Sreedevi Joshi <sreedevi.jo...@intel.com>
Signed-off-by: John Jacques <john.jacq...@intel.com>
---
drivers/misc/lsi-mtc.c | 12 ++++++++++++
1 file changed, 12 insertions(+)
diff --git a/drivers/misc/lsi-mtc.c b/drivers/misc/lsi-mtc.c
index 55c3403..a9285fe 100644
--- a/drivers/misc/lsi-mtc.c
+++ b/drivers/misc/lsi-mtc.c
@@ -29,6 +29,8 @@
#include <linux/atomic.h>
#include <linux/io.h>
#include <linux/string.h>
+#include <linux/delay.h>
+
#include "linux/lsi_mtc_ioctl.h"
@@ -4114,6 +4116,7 @@ static long _mtc_config(struct mtc_device *dev, struct
lsi_mtc_cfg_t *pMTCCfg)
struct ncp_axis_mtc_MTC_CONFIG0_REG_ADDR_r_t cfg0 = { 0 };
struct ncp_axis_mtc_MTC_CONFIG1_REG_ADDR_r_t cfg1 = { 0 };
struct ncp_axis_mtc_MTC_EXECUTE1_REG_ADDR_r_t exec1 = { 0 };
+ u32 init_reg = { 0 };
if ((!pMTCCfg) || (!dev))
return -EINVAL;
@@ -4129,6 +4132,15 @@ static long _mtc_config(struct mtc_device *dev, struct
lsi_mtc_cfg_t *pMTCCfg)
exec1.sw_reset = 1;
dev->regs->execute = *((u32 *) &exec1);
dev->regs->mem_init = 0x202;
+ /* wait for the init to complete */
+ udelay(2);
+ init_reg = readl(&(dev->regs->mem_init));
+ if ((init_reg & 0x101) != 0x101) {
+ pr_debug("warning: mem_init failed value=0x%x
(expected:0x101)\n",
+ init_reg);
+ }
+ /* clear ECC interrupt status */
+ dev->regs->ecc_int_status = 0xF;
/* 3. config MTC */
cfg0 =
--
2.7.4
--
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