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https://github.com/Ysurac/openmptcprouter.git
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51 lines
1.8 KiB
Diff
51 lines
1.8 KiB
Diff
From 5c0bb71138770d85ea840acd379edc6471b867ee Mon Sep 17 00:00:00 2001
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From: Peter Geis <pgwipeout@gmail.com>
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Date: Fri, 8 Apr 2022 11:12:34 -0400
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Subject: [PATCH] soc: rockchip: set dwc3 clock for rk3566
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The rk3566 dwc3 otg port clock is unavailable at boot, as it defaults to
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the combophy as the clock source. As combophy0 doesn't exist on rk3566,
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we need to set the clock source to the usb2 phy instead.
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Add handling to the grf driver to handle this on boot.
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Signed-off-by: Peter Geis <pgwipeout@gmail.com>
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Link: https://lore.kernel.org/r/20220408151237.3165046-3-pgwipeout@gmail.com
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Signed-off-by: Heiko Stuebner <heiko@sntech.de>
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---
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drivers/soc/rockchip/grf.c | 17 +++++++++++++++++
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1 file changed, 17 insertions(+)
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--- a/drivers/soc/rockchip/grf.c
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+++ b/drivers/soc/rockchip/grf.c
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@@ -108,6 +108,20 @@ static const struct rockchip_grf_info rk
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.num_values = ARRAY_SIZE(rk3399_defaults),
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};
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+#define RK3566_GRF_USB3OTG0_CON1 0x0104
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+
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+static const struct rockchip_grf_value rk3566_defaults[] __initconst = {
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+ { "usb3otg port switch", RK3566_GRF_USB3OTG0_CON1, HIWORD_UPDATE(0, 1, 12) },
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+ { "usb3otg clock switch", RK3566_GRF_USB3OTG0_CON1, HIWORD_UPDATE(1, 1, 7) },
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+ { "usb3otg disable usb3", RK3566_GRF_USB3OTG0_CON1, HIWORD_UPDATE(1, 1, 0) },
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+};
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+
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+static const struct rockchip_grf_info rk3566_pipegrf __initconst = {
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+ .values = rk3566_defaults,
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+ .num_values = ARRAY_SIZE(rk3566_defaults),
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+};
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+
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+
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static const struct of_device_id rockchip_grf_dt_match[] __initconst = {
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{
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.compatible = "rockchip,rk3036-grf",
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@@ -130,6 +144,9 @@ static const struct of_device_id rockchi
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}, {
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.compatible = "rockchip,rk3399-grf",
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.data = (void *)&rk3399_grf,
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+ }, {
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+ .compatible = "rockchip,rk3566-pipe-grf",
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+ .data = (void *)&rk3566_pipegrf,
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},
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{ /* sentinel */ },
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};
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