1 files changed, 53 insertions, 0 deletions
diff --git a/board/theobroma-systems/jaguar_rk3588/jaguar_rk3588.c b/board/theobroma-systems/jaguar_rk3588/jaguar_rk3588.c
new file mode 100644
index 00000000000..a6d44f10db3
--- /dev/null
+++ b/board/theobroma-systems/jaguar_rk3588/jaguar_rk3588.c
@@ -0,0 +1,53 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * (C) Copyright 2023 Theobroma Systems Design und Consulting GmbH
+ */
+
+#include <phy.h>
+#include <eth_phy.h>
+
+#include <asm/types.h>
+#include <asm/arch-rockchip/cru_rk3588.h>
+#include <asm/arch-rockchip/hardware.h>
+#include <asm/arch-rockchip/ioc_rk3588.h>
+#include <asm-generic/u-boot.h>
+#include <dm/device.h>
+#include <dm/uclass-id.h>
+#include <linux/bitfield.h>
+
+#include "../common/common.h"
+
+#define GPIO2C3_SEL_MASK		GENMASK(15, 12)
+#define GPIO2C3_ETH0_REFCLKO_25M	FIELD_PREP(GPIO2C3_SEL_MASK, 1)
+
+#define REFCLKO25M_ETH0_OUT_SEL_MASK	BIT(15)
+#define REFCLKO25M_ETH0_OUT_SEL_CPLL	FIELD_PREP(REFCLKO25M_ETH0_OUT_SEL_MASK, 1)
+#define REFCLKO25M_ETH0_OUT_DIV_MASK	GENMASK(14, 8)
+#define REFCLKO25M_ETH0_OUT_DIV(x)	FIELD_PREP(REFCLKO25M_ETH0_OUT_DIV_MASK, (x) - 1)
+
+#define REFCLKO25M_ETH0_OUT_EN		BIT(4)
+
+void setup_eth0refclko(void)
+{
+	/* Configure and enable ETH0_REFCLKO_25MHz */
+	static struct rk3588_bus_ioc * const bus_ioc = (void *)BUS_IOC_BASE;
+	static struct rk3588_cru * const cru = (void *)CRU_BASE;
+
+	/* 1. Pinmux */
+	rk_clrsetreg(&bus_ioc->gpio2c_iomux_sel_l, GPIO2C3_SEL_MASK, GPIO2C3_ETH0_REFCLKO_25M);
+	/* 2. Parent clock selection + divider => CPLL (1.5GHz) / 60 => 25MHz */
+	rk_clrsetreg(&cru->clksel_con[15],
+		     REFCLKO25M_ETH0_OUT_SEL_MASK | REFCLKO25M_ETH0_OUT_DIV_MASK,
+		     REFCLKO25M_ETH0_OUT_SEL_CPLL | REFCLKO25M_ETH0_OUT_DIV(60));
+	/* 3. Enable clock */
+	rk_clrreg(&cru->clkgate_con[5], REFCLKO25M_ETH0_OUT_EN);
+}
+
+int rockchip_early_misc_init_r(void)
+{
+	setup_boottargets();
+
+	setup_eth0refclko();
+
+	return 0;
+}