From 5486a9fbdcd20dd7cf458d7fcf407fe50ad6b1f9 Mon Sep 17 00:00:00 2001
From: patrick <patrick@openbsd.org>
Date: Wed, 28 Jul 2021 13:10:28 +0000
Subject: [PATCH] Add RK3399 PCIe PHY reference clocks.

ok kettenis@
---
 sys/dev/fdt/rkclock.c        | 28 ++++++++++++++++++++++++++--
 sys/dev/fdt/rkclock_clocks.h |  2 ++
 2 files changed, 28 insertions(+), 2 deletions(-)

diff --git a/sys/dev/fdt/rkclock.c b/sys/dev/fdt/rkclock.c
index 43f985fe641..72aa2dfc9c1 100644
--- a/sys/dev/fdt/rkclock.c
+++ b/sys/dev/fdt/rkclock.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: rkclock.c,v 1.56 2021/07/28 13:04:46 patrick Exp $	*/
+/*	$OpenBSD: rkclock.c,v 1.57 2021/07/28 13:10:28 patrick Exp $	*/
 /*
  * Copyright (c) 2017, 2018 Mark Kettenis <kettenis@openbsd.org>
  *
@@ -243,6 +243,7 @@ void	rk3328_reset(void *, uint32_t *, int);
 void	rk3399_init(struct rkclock_softc *);
 uint32_t rk3399_get_frequency(void *, uint32_t *);
 int	rk3399_set_frequency(void *, uint32_t *, uint32_t);
+int	rk3399_set_parent(void *, uint32_t *, uint32_t *);
 void	rk3399_enable(void *, uint32_t *, int);
 void	rk3399_reset(void *, uint32_t *, int);
 
@@ -285,7 +286,7 @@ struct rkclock_compat rkclock_compat[] = {
 	{
 		"rockchip,rk3399-cru", 1, rk3399_init,
 		rk3399_enable, rk3399_get_frequency,
-		rk3399_set_frequency, NULL,
+		rk3399_set_frequency, rk3399_set_parent,
 		rk3399_reset
 	},
 	{
@@ -2205,6 +2206,17 @@ struct rkclock rk3399_clocks[] = {
 		{ RK3399_XIN24M, RK3399_CLK_32K, RK3399_PLL_CPLL,
 		  RK3399_PLL_GPLL }
 	},
+	{
+		RK3399_CLK_PCIEPHY_REF, RK3399_CRU_CLKSEL_CON(18),
+		SEL(10, 10), 0,
+		{ RK3399_XIN24M, RK3399_CLK_PCIEPHY_REF100M },
+		SET_PARENT
+	},
+	{
+		RK3399_CLK_PCIEPHY_REF100M, RK3399_CRU_CLKSEL_CON(18),
+		0, DIV(15, 11),
+		{ RK3399_PLL_NPLL }
+	},
 	{
 		RK3399_DCLK_VOP0, RK3399_CRU_CLKSEL_CON(49),
 		SEL(11, 11), 0,
@@ -2768,6 +2780,18 @@ rk3399_set_frequency(void *cookie, uint32_t *cells, uint32_t freq)
 	return rkclock_set_frequency(sc, idx, freq);
 }
 
+
+int
+rk3399_set_parent(void *cookie, uint32_t *cells, uint32_t *pcells)
+{
+	struct rkclock_softc *sc = cookie;
+
+	if (pcells[0] != sc->sc_phandle)
+		return -1;
+
+	return rkclock_set_parent(sc, cells[0], pcells[1]);
+}
+
 void
 rk3399_enable(void *cookie, uint32_t *cells, int on)
 {
diff --git a/sys/dev/fdt/rkclock_clocks.h b/sys/dev/fdt/rkclock_clocks.h
index f75afb51f8d..e8d99435c2d 100644
--- a/sys/dev/fdt/rkclock_clocks.h
+++ b/sys/dev/fdt/rkclock_clocks.h
@@ -193,8 +193,10 @@
 #define RK3399_CLK_USB3OTG1_REF		130
 #define RK3399_CLK_USB3OTG0_SUSPEND	131
 #define RK3399_CLK_USB3OTG1_SUSPEND	132
+#define RK3399_CLK_PCIEPHY_REF		138
 #define RK3399_CLK_SDMMC_DRV		154
 #define RK3399_CLK_SDMMC_SAMPLE		155
+#define RK3399_CLK_PCIEPHY_REF100M	167
 
 #define RK3399_DCLK_VOP0		180
 #define RK3399_DCLK_VOP1		181
-- 
2.20.1