[PATCH net v3 3/4] fsl/fman: A007273 only applies to PPC SoCs

From: Madalin Bucur
Date: Mon Dec 19 2016 - 11:13:55 EST


Signed-off-by: Madalin Bucur <madalin.bucur@xxxxxxx>
Reviewed-by: Camelia Groza <camelia.groza@xxxxxxx>
---
drivers/net/ethernet/freescale/fman/fman.c | 8 ++++++++
1 file changed, 8 insertions(+)

diff --git a/drivers/net/ethernet/freescale/fman/fman.c b/drivers/net/ethernet/freescale/fman/fman.c
index 0b7f711..003b86d 100644
--- a/drivers/net/ethernet/freescale/fman/fman.c
+++ b/drivers/net/ethernet/freescale/fman/fman.c
@@ -1890,6 +1890,7 @@ static int fman_reset(struct fman *fman)

goto _return;
} else {
+#ifdef CONFIG_PPC
struct device_node *guts_node;
struct ccsr_guts __iomem *guts_regs;
u32 devdisr2, reg;
@@ -1921,6 +1922,7 @@ static int fman_reset(struct fman *fman)

/* Enable all MACs */
iowrite32be(reg, &guts_regs->devdisr2);
+#endif

/* Perform FMan reset */
iowrite32be(FPM_RSTC_FM_RESET, &fman->fpm_regs->fm_rstc);
@@ -1932,25 +1934,31 @@ static int fman_reset(struct fman *fman)
} while (((ioread32be(&fman->fpm_regs->fm_rstc)) &
FPM_RSTC_FM_RESET) && --count);
if (count == 0) {
+#ifdef CONFIG_PPC
iounmap(guts_regs);
of_node_put(guts_node);
+#endif
err = -EBUSY;
goto _return;
}
+#ifdef CONFIG_PPC

/* Restore devdisr2 value */
iowrite32be(devdisr2, &guts_regs->devdisr2);

iounmap(guts_regs);
of_node_put(guts_node);
+#endif

goto _return;

+#ifdef CONFIG_PPC
guts_regs:
of_node_put(guts_node);
guts_node:
dev_dbg(fman->dev, "%s: Didn't perform FManV3 reset due to Errata A007273!\n",
__func__);
+#endif
}
_return:
return err;
--
2.1.0