[PATCH v3 2/3] phy: rockchip-inno-usb2: add initial support for rk3588 PHY
Eugen Hristev
eugen.hristev at collabora.com
Fri Mar 31 11:40:49 CEST 2023
Add initial support for the rk3588 PHY variant.
The driver now looks for phy-supply and enables/disables the vbus
accordingly.
The lookup for the host-port reg inside the struct now does a do {} while()
instead of a while() {} in order to allow a first check for reg == 0.
Co-developed-by: Frank Wang <frank.wang at rock-chips.com>
Signed-off-by: Frank Wang <frank.wang at rock-chips.com>
Signed-off-by: Eugen Hristev <eugen.hristev at collabora.com>
Tested-by: Vasily Khoruzhick <anarsoul at gmail.com> # rk3568-based board
Tested-by: Xavier Drudis Ferran <xdrudis at tinet.cat> # rk3399 rock pi 4B+
---
Changes in v3:
- add handling of -EBUSY and -EALREADY for regulator return
Changes in v2:
- add handling of -EACCES
drivers/phy/rockchip/phy-rockchip-inno-usb2.c | 109 +++++++++++++++++-
1 file changed, 104 insertions(+), 5 deletions(-)
diff --git a/drivers/phy/rockchip/phy-rockchip-inno-usb2.c b/drivers/phy/rockchip/phy-rockchip-inno-usb2.c
index 55e1dbcfef7e..75c50670524e 100644
--- a/drivers/phy/rockchip/phy-rockchip-inno-usb2.c
+++ b/drivers/phy/rockchip/phy-rockchip-inno-usb2.c
@@ -13,6 +13,7 @@
#include <dm/device_compat.h>
#include <dm/lists.h>
#include <generic-phy.h>
+#include <power/regulator.h>
#include <reset.h>
#include <syscon.h>
#include <asm/gpio.h>
@@ -61,6 +62,7 @@ struct rockchip_usb2phy_cfg {
struct rockchip_usb2phy {
void *reg_base;
struct clk phyclk;
+ struct udevice *vbus_supply[USB2PHY_NUM_PORTS];
const struct rockchip_usb2phy_cfg *phy_cfg;
};
@@ -86,11 +88,34 @@ struct rockchip_usb2phy_port_cfg *us2phy_get_port(struct phy *phy)
return &phy_cfg->port_cfgs[phy->id];
}
+static struct udevice *rockchip_usb2phy_check_vbus(struct phy *phy)
+{
+ struct udevice *parent = phy->dev->parent;
+ struct rockchip_usb2phy *priv = dev_get_priv(parent);
+ struct udevice *vbus = NULL;
+
+ if (phy->id == USB2PHY_PORT_HOST)
+ vbus = priv->vbus_supply[USB2PHY_PORT_HOST];
+
+ return vbus;
+}
+
static int rockchip_usb2phy_power_on(struct phy *phy)
{
struct udevice *parent = dev_get_parent(phy->dev);
struct rockchip_usb2phy *priv = dev_get_priv(parent);
const struct rockchip_usb2phy_port_cfg *port_cfg = us2phy_get_port(phy);
+ struct udevice *vbus = NULL;
+ int ret;
+
+ vbus = rockchip_usb2phy_check_vbus(phy);
+ if (vbus) {
+ ret = regulator_set_enable(vbus, true);
+ if (ret && ret != -EALREADY) {
+ dev_err(phy->dev, "vbus enable failed: %d\n", ret);
+ return ret;
+ }
+ }
property_enable(priv->reg_base, &port_cfg->phy_sus, false);
@@ -105,6 +130,17 @@ static int rockchip_usb2phy_power_off(struct phy *phy)
struct udevice *parent = dev_get_parent(phy->dev);
struct rockchip_usb2phy *priv = dev_get_priv(parent);
const struct rockchip_usb2phy_port_cfg *port_cfg = us2phy_get_port(phy);
+ struct udevice *vbus = NULL;
+ int ret;
+
+ vbus = rockchip_usb2phy_check_vbus(phy);
+ if (vbus) {
+ ret = regulator_set_enable(vbus, false);
+ if (ret && ret != -EACCES && ret != -EBUSY) {
+ dev_info(phy->dev, "vbus disable failed: %d\n", ret);
+ return ret;
+ }
+ }
property_enable(priv->reg_base, &port_cfg->phy_sus, true);
@@ -149,13 +185,20 @@ static int rockchip_usb2phy_of_xlate(struct phy *phy,
struct ofnode_phandle_args *args)
{
const char *name = phy->dev->name;
+ struct udevice *parent = phy->dev->parent;
+ struct rockchip_usb2phy *priv = dev_get_priv(parent);
- if (!strcasecmp(name, "host-port"))
+ if (!strcasecmp(name, "host-port")) {
phy->id = USB2PHY_PORT_HOST;
- else if (!strcasecmp(name, "otg-port"))
+ device_get_supply_regulator(phy->dev, "phy-supply",
+ &priv->vbus_supply[USB2PHY_PORT_HOST]);
+ } else if (!strcasecmp(name, "otg-port")) {
phy->id = USB2PHY_PORT_OTG;
- else
+ device_get_supply_regulator(phy->dev, "phy-supply",
+ &priv->vbus_supply[USB2PHY_PORT_OTG]);
+ } else {
dev_err(phy->dev, "improper %s device\n", name);
+ }
return 0;
}
@@ -201,14 +244,14 @@ static int rockchip_usb2phy_probe(struct udevice *dev)
/* find out a proper config which can be matched with dt. */
index = 0;
- while (phy_cfgs[index].reg) {
+ do {
if (phy_cfgs[index].reg == reg) {
priv->phy_cfg = &phy_cfgs[index];
break;
}
++index;
- }
+ } while (phy_cfgs[index].reg);
if (!priv->phy_cfg) {
dev_err(dev, "failed find proper phy-cfg\n");
@@ -348,6 +391,58 @@ static const struct rockchip_usb2phy_cfg rk3568_phy_cfgs[] = {
{ /* sentinel */ }
};
+static const struct rockchip_usb2phy_cfg rk3588_phy_cfgs[] = {
+ {
+ .reg = 0x0000,
+ .port_cfgs = {
+ [USB2PHY_PORT_OTG] = {
+ .phy_sus = { 0x000c, 11, 11, 0, 1 },
+ .ls_det_en = { 0x0080, 0, 0, 0, 1 },
+ .ls_det_st = { 0x0084, 0, 0, 0, 1 },
+ .ls_det_clr = { 0x0088, 0, 0, 0, 1 },
+ .utmi_ls = { 0x00c0, 10, 9, 0, 1 },
+ }
+ },
+ },
+ {
+ .reg = 0x4000,
+ .port_cfgs = {
+ [USB2PHY_PORT_OTG] = {
+ .phy_sus = { 0x000c, 11, 11, 0, 0 },
+ .ls_det_en = { 0x0080, 0, 0, 0, 1 },
+ .ls_det_st = { 0x0084, 0, 0, 0, 1 },
+ .ls_det_clr = { 0x0088, 0, 0, 0, 1 },
+ .utmi_ls = { 0x00c0, 10, 9, 0, 1 },
+ }
+ },
+ },
+ {
+ .reg = 0x8000,
+ .port_cfgs = {
+ [USB2PHY_PORT_HOST] = {
+ .phy_sus = { 0x0008, 2, 2, 0, 1 },
+ .ls_det_en = { 0x0080, 0, 0, 0, 1 },
+ .ls_det_st = { 0x0084, 0, 0, 0, 1 },
+ .ls_det_clr = { 0x0088, 0, 0, 0, 1 },
+ .utmi_ls = { 0x00c0, 10, 9, 0, 1 },
+ }
+ },
+ },
+ {
+ .reg = 0xc000,
+ .port_cfgs = {
+ [USB2PHY_PORT_HOST] = {
+ .phy_sus = { 0x0008, 2, 2, 0, 1 },
+ .ls_det_en = { 0x0080, 0, 0, 0, 1 },
+ .ls_det_st = { 0x0084, 0, 0, 0, 1 },
+ .ls_det_clr = { 0x0088, 0, 0, 0, 1 },
+ .utmi_ls = { 0x00c0, 10, 9, 0, 1 },
+ }
+ },
+ },
+ { /* sentinel */ }
+};
+
static const struct udevice_id rockchip_usb2phy_ids[] = {
{
.compatible = "rockchip,rk3399-usb2phy",
@@ -357,6 +452,10 @@ static const struct udevice_id rockchip_usb2phy_ids[] = {
.compatible = "rockchip,rk3568-usb2phy",
.data = (ulong)&rk3568_phy_cfgs,
},
+ {
+ .compatible = "rockchip,rk3588-usb2phy",
+ .data = (ulong)&rk3588_phy_cfgs,
+ },
{ /* sentinel */ }
};
--
2.34.1
More information about the U-Boot
mailing list