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sunxi: phy: Add USB PHY support for Allwinner H6

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The USB PHY used in the Allwinner H6 SoC has some pecularities (as usual),
which require a small addition to the USB PHY driver:
In this case the second PHY is PHY3, not PHY1, so we need to skip number
1 and 2 in the code. Just use the respective code from Linux for that.

Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Tested-by: Corentin Labbe <clabbe.montjoie@gmail.com> # Pine-H64
Reviewed-by: Jagan Teki <jagan@amarulasolutions.com>
This commit is contained in:
Andre Przywara 2019-06-23 15:09:49 +01:00 • committed by Jagan Teki
parent 106c1300a5
commit 35fa673e0e
1 changed files with 20 additions and 0 deletions

20
drivers/phy/allwinner/phy-sun4i-usb.c
View file

@ -75,6 +75,7 @@ enum sun4i_usb_phy_type {
sun8i_h3_phy, sun8i_h3_phy,
sun8i_v3s_phy, sun8i_v3s_phy,
sun50i_a64_phy, sun50i_a64_phy,
sun50i_h6_phy,
}; };
struct sun4i_usb_phy_cfg { struct sun4i_usb_phy_cfg {
@ -85,6 +86,7 @@ struct sun4i_usb_phy_cfg {
bool dedicated_clocks; bool dedicated_clocks;
bool enable_pmu_unk1; bool enable_pmu_unk1;
bool phy0_dual_route; bool phy0_dual_route;
int missing_phys;
}; };
struct sun4i_usb_phy_info { struct sun4i_usb_phy_info {
@ -349,6 +351,9 @@ static int sun4i_usb_phy_xlate(struct phy *phy,
if (args->args_count >= data->cfg->num_phys) if (args->args_count >= data->cfg->num_phys)
return -EINVAL; return -EINVAL;
if (data->cfg->missing_phys & BIT(args->args[0]))
return -ENODEV;
if (args->args_count) if (args->args_count)
phy->id = args->args[0]; phy->id = args->args[0];
else else
@ -429,6 +434,9 @@ static int sun4i_usb_phy_probe(struct udevice *dev)
struct sun4i_usb_phy_info *info = &phy_info[i]; struct sun4i_usb_phy_info *info = &phy_info[i];
char name[16]; char name[16];
if (data->cfg->missing_phys & BIT(i))
continue;
phy->gpio_vbus = sunxi_name_to_gpio(info->gpio_vbus); phy->gpio_vbus = sunxi_name_to_gpio(info->gpio_vbus);
if (phy->gpio_vbus >= 0) { if (phy->gpio_vbus >= 0) {
ret = gpio_request(phy->gpio_vbus, "usb_vbus"); ret = gpio_request(phy->gpio_vbus, "usb_vbus");
@ -583,6 +591,17 @@ static const struct sun4i_usb_phy_cfg sun50i_a64_cfg = {
.phy0_dual_route = true, .phy0_dual_route = true,
}; };
static const struct sun4i_usb_phy_cfg sun50i_h6_cfg = {
.num_phys = 4,
.type = sun50i_h6_phy,
.disc_thresh = 3,
.phyctl_offset = REG_PHYCTL_A33,
.dedicated_clocks = true,
.enable_pmu_unk1 = true,
.phy0_dual_route = true,
.missing_phys = BIT(1) | BIT(2),
};
static const struct udevice_id sun4i_usb_phy_ids[] = { static const struct udevice_id sun4i_usb_phy_ids[] = {
{ .compatible = "allwinner,sun4i-a10-usb-phy", .data = (ulong)&sun4i_a10_cfg }, { .compatible = "allwinner,sun4i-a10-usb-phy", .data = (ulong)&sun4i_a10_cfg },
{ .compatible = "allwinner,sun5i-a13-usb-phy", .data = (ulong)&sun5i_a13_cfg }, { .compatible = "allwinner,sun5i-a13-usb-phy", .data = (ulong)&sun5i_a13_cfg },
@ -594,6 +613,7 @@ static const struct udevice_id sun4i_usb_phy_ids[] = {
{ .compatible = "allwinner,sun8i-h3-usb-phy", .data = (ulong)&sun8i_h3_cfg }, { .compatible = "allwinner,sun8i-h3-usb-phy", .data = (ulong)&sun8i_h3_cfg },
{ .compatible = "allwinner,sun8i-v3s-usb-phy", .data = (ulong)&sun8i_v3s_cfg }, { .compatible = "allwinner,sun8i-v3s-usb-phy", .data = (ulong)&sun8i_v3s_cfg },
{ .compatible = "allwinner,sun50i-a64-usb-phy", .data = (ulong)&sun50i_a64_cfg}, { .compatible = "allwinner,sun50i-a64-usb-phy", .data = (ulong)&sun50i_a64_cfg},
{ .compatible = "allwinner,sun50i-h6-usb-phy", .data = (ulong)&sun50i_h6_cfg},
{ } { }
}; };