commit beedbc2ea0e71c779b92e4d74b928a266d3e86f9
author Alexander Stein <alexander.stein@systec-electronic.com> Wed Nov 04 09:19:10 2015 +0100
committer York Sun <yorksun@freescale.com> Tue Dec 15 08:57:33 2015 +0800
tree e11ed9ac46db832dc7ad9980d88fe2cfef2844ab
parent c04921414c087e15f8fa82d808a25e9338a7e8d5

fsl_qspi: Pet the watchdog while reading/writing

When reading a large blob. e.g. a linux kernel (several MiBs) a watchdog
timeout might occur meanwhile. So pet the watchdog while operating on
the flash.

Signed-off-by: Alexander Stein <alexander.stein@systec-electronic.com>
Reviewed-by: York Sun <yorksun@freescale.com>

drivers/spi/fsl_qspi.c

diff --git a/drivers/spi/fsl_qspi.c b/drivers/spi/fsl_qspi.c
index ed39114..feec3e8 100644
--- a/drivers/spi/fsl_qspi.c
+++ b/drivers/spi/fsl_qspi.c
@@ -13,6 +13,7 @@
 #include <linux/sizes.h>
 #include <dm.h>
 #include <errno.h>
+#include <watchdog.h>
 #include "fsl_qspi.h"
 
 DECLARE_GLOBAL_DATA_PTR;
@@ -527,6 +528,8 @@
 	to_or_from = priv->sf_addr + priv->cur_amba_base;
 
 	while (len > 0) {
+		WATCHDOG_RESET();
+
 		qspi_write32(priv->flags, &regs->sfar, to_or_from);
 
 		size = (len > RX_BUFFER_SIZE) ?
@@ -574,6 +577,8 @@
 
 	status_reg = 0;
 	while ((status_reg & FLASH_STATUS_WEL) != FLASH_STATUS_WEL) {
+		WATCHDOG_RESET();
+
 		qspi_write32(priv->flags, &regs->ipcr,
 			     (SEQID_WREN << QSPI_IPCR_SEQID_SHIFT) | 0);
 		while (qspi_read32(priv->flags, &regs->sr) & QSPI_SR_BUSY_MASK)