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authorXing Zheng <zhengxing@rock-chips.com>2016-01-08 02:35:02 +0100
committerDavid S. Miller <davem@davemloft.net>2016-01-11 04:21:31 +0100
commitaf72261f33ee4958bb53e299746014f44e1134c4 (patch)
tree8ac27e4043ff95aa7da00cd1a1bfdac61ce0c057 /drivers/net/ethernet/arc
parentnet: ethernet: arc: Keep emac compatibility for more Rockchip SoCs (diff)
downloadlinux-af72261f33ee4958bb53e299746014f44e1134c4.tar.xz
linux-af72261f33ee4958bb53e299746014f44e1134c4.zip
net: ethernet: arc: Add support emac for RK3036
The RK3036's GRFs offset are different with RK3066/RK3188, and need to set mac TX/RX clock before probe emac. Signed-off-by: Xing Zheng <zhengxing@rock-chips.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/arc')
-rw-r--r--drivers/net/ethernet/arc/Kconfig4
-rw-r--r--drivers/net/ethernet/arc/emac_rockchip.c8
2 files changed, 9 insertions, 3 deletions
diff --git a/drivers/net/ethernet/arc/Kconfig b/drivers/net/ethernet/arc/Kconfig
index 52a6b16f57d2..689045186064 100644
--- a/drivers/net/ethernet/arc/Kconfig
+++ b/drivers/net/ethernet/arc/Kconfig
@@ -34,9 +34,9 @@ config EMAC_ROCKCHIP
select ARC_EMAC_CORE
depends on OF_IRQ && OF_NET && REGULATOR && HAS_DMA
---help---
- Support for Rockchip RK3066/RK3188 EMAC ethernet controllers.
+ Support for Rockchip RK3036/RK3066/RK3188 EMAC ethernet controllers.
This selects Rockchip SoC glue layer support for the
- emac device driver. This driver is used for RK3066/RK3188
+ emac device driver. This driver is used for RK3036/RK3066/RK3188
EMAC ethernet controller.
endif # NET_VENDOR_ARC
diff --git a/drivers/net/ethernet/arc/emac_rockchip.c b/drivers/net/ethernet/arc/emac_rockchip.c
index e951c8fab778..85e821ccfcd2 100644
--- a/drivers/net/ethernet/arc/emac_rockchip.c
+++ b/drivers/net/ethernet/arc/emac_rockchip.c
@@ -67,6 +67,11 @@ static void emac_rockchip_set_mac_speed(void *priv, unsigned int speed)
pr_err("unable to apply speed %u to grf (%d)\n", speed, err);
}
+static const struct emac_rockchip_soc_data emac_rk3036_emac_data = {
+ .grf_offset = 0x140, .grf_mode_offset = 8,
+ .grf_speed_offset = 9, .need_div_macclk = 1,
+};
+
static const struct emac_rockchip_soc_data emac_rk3066_emac_data = {
.grf_offset = 0x154, .grf_mode_offset = 0,
.grf_speed_offset = 1, .need_div_macclk = 0,
@@ -78,6 +83,7 @@ static const struct emac_rockchip_soc_data emac_rk3188_emac_data = {
};
static const struct of_device_id emac_rockchip_dt_ids[] = {
+ { .compatible = "rockchip,rk3036-emac", .data = &emac_rk3036_emac_data },
{ .compatible = "rockchip,rk3066-emac", .data = &emac_rk3066_emac_data },
{ .compatible = "rockchip,rk3188-emac", .data = &emac_rk3188_emac_data },
{ /* Sentinel */ }
@@ -110,7 +116,7 @@ static int emac_rockchip_probe(struct platform_device *pdev)
interface = of_get_phy_mode(dev->of_node);
- /* RK3066 and RK3188 SoCs only support RMII */
+ /* RK3036/RK3066/RK3188 SoCs only support RMII */
if (interface != PHY_INTERFACE_MODE_RMII) {
dev_err(dev, "unsupported phy interface mode %d\n", interface);
err = -ENOTSUPP;