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authorAlexander Stein <alexander.stein@systec-electronic.com>2015-11-04 09:19:10 +0100
committerYork Sun <yorksun@freescale.com>2015-12-15 08:57:33 +0800
commitbeedbc2ea0e71c779b92e4d74b928a266d3e86f9 (patch)
treee11ed9ac46db832dc7ad9980d88fe2cfef2844ab
parentc04921414c087e15f8fa82d808a25e9338a7e8d5 (diff)
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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>
-rw-r--r--drivers/spi/fsl_qspi.c5
1 files changed, 5 insertions, 0 deletions
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 @@ static void qspi_op_read(struct fsl_qspi_priv *priv, u32 *rxbuf, u32 len)
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 @@ static void qspi_op_write(struct fsl_qspi_priv *priv, u8 *txbuf, u32 len)
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)