Message ID | 20171204043136.17167-19-peng.fan@nxp.com |
---|---|
State | Changes Requested |
Delegated to: | Stefano Babic |
Headers | show |
Series | imx: add i.MX8M support and i.MX8MQ EVK | expand |
On Sun, Dec 3, 2017 at 10:31 PM, Peng Fan <peng.fan@nxp.com> wrote: > The MIB RAM and FIFO receive start register does not exist on > i.MX8M. Accessing these register will cause system hang. > > Signed-off-by: Peng Fan <peng.fan@nxp.com> > Cc: Joe Hershberger <joe.hershberger@ni.com> Acked-by: Joe Hershberger <joe.hershberger@ni.com>
On 04/12/2017 05:31, Peng Fan wrote: > The MIB RAM and FIFO receive start register does not exist on > i.MX8M. Accessing these register will cause system hang. > > Signed-off-by: Peng Fan <peng.fan@nxp.com> > Cc: Joe Hershberger <joe.hershberger@ni.com> > --- > drivers/net/fec_mxc.c | 4 ++-- > 1 file changed, 2 insertions(+), 2 deletions(-) > > diff --git a/drivers/net/fec_mxc.c b/drivers/net/fec_mxc.c > index 433e19f0f8..4cbc8cbbfd 100644 > --- a/drivers/net/fec_mxc.c > +++ b/drivers/net/fec_mxc.c > @@ -562,8 +562,8 @@ static int fec_init(struct eth_device *dev, bd_t *bd) > writel(0x00000000, &fec->eth->gaddr1); > writel(0x00000000, &fec->eth->gaddr2); > > - /* Do not access reserved register for i.MX6UL */ > - if (!is_mx6ul() && !is_mx6ull()) { > + /* Do not access reserved register */ > + if (!is_mx6ul() && !is_mx6ull() && !is_mx8m()) { > /* clear MIB RAM */ > for (i = mib_ptr; i <= mib_ptr + 0xfc; i += 4) > writel(0, i); > Reviewed-by: Stefano Babic <sbabic@denx.de> Best regards, Stefano Babic
On Mon, Dec 4, 2017 at 2:31 AM, Peng Fan <peng.fan@nxp.com> wrote: > The MIB RAM and FIFO receive start register does not exist on > i.MX8M. Accessing these register will cause system hang. > > Signed-off-by: Peng Fan <peng.fan@nxp.com> > Cc: Joe Hershberger <joe.hershberger@ni.com> Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
diff --git a/drivers/net/fec_mxc.c b/drivers/net/fec_mxc.c index 433e19f0f8..4cbc8cbbfd 100644 --- a/drivers/net/fec_mxc.c +++ b/drivers/net/fec_mxc.c @@ -562,8 +562,8 @@ static int fec_init(struct eth_device *dev, bd_t *bd) writel(0x00000000, &fec->eth->gaddr1); writel(0x00000000, &fec->eth->gaddr2); - /* Do not access reserved register for i.MX6UL */ - if (!is_mx6ul() && !is_mx6ull()) { + /* Do not access reserved register */ + if (!is_mx6ul() && !is_mx6ull() && !is_mx8m()) { /* clear MIB RAM */ for (i = mib_ptr; i <= mib_ptr + 0xfc; i += 4) writel(0, i);
The MIB RAM and FIFO receive start register does not exist on i.MX8M. Accessing these register will cause system hang. Signed-off-by: Peng Fan <peng.fan@nxp.com> Cc: Joe Hershberger <joe.hershberger@ni.com> --- drivers/net/fec_mxc.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)