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usb: dwc-meson-g12a: Add support for USB on AXG SoCs 

The Amlogic AXG is close to the GXL Glue but with a single OTG PHY.

It needs the same init sequence as GXL & GXM, but it seems it doesn't need
the host disconnect bit.

Reviewed-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Reviewed-by: Kevin Hilman <khilman@baylibre.com>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
This commit is contained in:
Neil Armstrong 2020-09-17 08:59:47 +02:00 committed by Felipe Balbi
parent cdff2c946f
commit 65f3d449f4
1 changed files with 18 additions and 0 deletions
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18
drivers/usb/dwc3/dwc3-meson-g12a.c
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@ -127,6 +127,7 @@ static const char * const meson_g12a_phy_names[] = {
/* /*
* Amlogic A1 has a single physical PHY, in slot 1, but still has the * Amlogic A1 has a single physical PHY, in slot 1, but still has the
* two U2 PHY controls register blocks like G12A. * two U2 PHY controls register blocks like G12A.
* AXG has the similar scheme, thus needs the same tweak.
* Handling the first PHY on slot 1 would need a large amount of code * Handling the first PHY on slot 1 would need a large amount of code
* changes, and the current management is generic enough to handle it * changes, and the current management is generic enough to handle it
* correctly when only the "usb2-phy1" phy is specified on-par with the * correctly when only the "usb2-phy1" phy is specified on-par with the
@ -215,6 +216,19 @@ static struct dwc3_meson_g12a_drvdata gxm_drvdata = {
.usb_post_init = dwc3_meson_gxl_usb_post_init, .usb_post_init = dwc3_meson_gxl_usb_post_init,
}; };
static struct dwc3_meson_g12a_drvdata axg_drvdata = {
.otg_switch_supported = true,
.clks = meson_gxl_clocks,
.num_clks = ARRAY_SIZE(meson_gxl_clocks),
.phy_names = meson_a1_phy_names,
.num_phys = ARRAY_SIZE(meson_a1_phy_names),
.setup_regmaps = dwc3_meson_gxl_setup_regmaps,
.usb2_init_phy = dwc3_meson_gxl_usb2_init_phy,
.set_phy_mode = dwc3_meson_gxl_set_phy_mode,
.usb_init = dwc3_meson_g12a_usb_init,
.usb_post_init = dwc3_meson_gxl_usb_post_init,
};
static struct dwc3_meson_g12a_drvdata g12a_drvdata = { static struct dwc3_meson_g12a_drvdata g12a_drvdata = {
.otg_switch_supported = true, .otg_switch_supported = true,
.clks = meson_g12a_clocks, .clks = meson_g12a_clocks,
@ -923,6 +937,10 @@ static const struct of_device_id dwc3_meson_g12a_match[] = {
.compatible = "amlogic,meson-gxm-usb-ctrl", .compatible = "amlogic,meson-gxm-usb-ctrl",
.data = &gxm_drvdata, .data = &gxm_drvdata,
}, },
{
.compatible = "amlogic,meson-axg-usb-ctrl",
.data = &axg_drvdata,
},
{ {
.compatible = "amlogic,meson-g12a-usb-ctrl", .compatible = "amlogic,meson-g12a-usb-ctrl",
.data = &g12a_drvdata, .data = &g12a_drvdata,