Add code to reset all reset signals as in Ethernet DT node. A reset property is an optional feature, so only print out a warning and do not fail if a reset property is not present.
If a reset property is discovered, then use it to deassert, thus bringing the IP out of reset.
Signed-off-by: Ley Foon Tan ley.foon.tan@intel.com Reviewed-by: Simon Glass sjg@chromium.org Acked-by: Joe Hershberger joe.hershberger@ni.com
--- v2: - Removed 'return' when failed to reset.
v5: - Added Simon's Reviewed-by.
v6: - Added Joe's Acked-by. --- drivers/net/designware.c | 8 ++++++++ 1 file changed, 8 insertions(+)
diff --git a/drivers/net/designware.c b/drivers/net/designware.c index cf12521..6797691 100644 --- a/drivers/net/designware.c +++ b/drivers/net/designware.c @@ -15,6 +15,7 @@ #include <miiphy.h> #include <malloc.h> #include <pci.h> +#include <reset.h> #include <linux/compiler.h> #include <linux/err.h> #include <linux/kernel.h> @@ -664,6 +665,7 @@ int designware_eth_probe(struct udevice *dev) u32 iobase = pdata->iobase; ulong ioaddr; int ret; + struct reset_ctl_bulk reset_bulk; #ifdef CONFIG_CLK int i, err, clock_nb;
@@ -710,6 +712,12 @@ int designware_eth_probe(struct udevice *dev) } #endif
+ ret = reset_get_bulk(dev, &reset_bulk); + if (ret) + dev_warn(dev, "Can't get reset: %d\n", ret); + else + reset_deassert_bulk(&reset_bulk); + #ifdef CONFIG_DM_PCI /* * If we are on PCI bus, either directly attached to a PCI root port,