clk: imx: add i.IMXRT1020 clk driver

Add i.MXRT1020 clk driver support.

Signed-off-by: Giulio Benetti <giulio.benetti@benettiengineering.com>
Reviewed-by: Lukasz Majewski <lukma@denx.de>

include/dt-bindings/clock/imxrt1020-clock.h

@@ -0,0 +1,52 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * Copyright(C) 2020
+ * Author(s): Giulio Benetti <giulio.benetti@benettiengineering.com>
+ */
+
+#ifndef __DT_BINDINGS_CLOCK_IMXRT1020_H
+#define __DT_BINDINGS_CLOCK_IMXRT1020_H
+
+#define IMXRT1020_CLK_DUMMY			0
+#define IMXRT1020_CLK_CKIL			1
+#define IMXRT1020_CLK_CKIH			2
+#define IMXRT1020_CLK_OSC			3
+#define IMXRT1020_CLK_PLL2_PFD0_352M		4
+#define IMXRT1020_CLK_PLL2_PFD1_594M		5
+#define IMXRT1020_CLK_PLL2_PFD2_396M		6
+#define IMXRT1020_CLK_PLL2_PFD3_297M		7
+#define IMXRT1020_CLK_PLL3_PFD0_720M		8
+#define IMXRT1020_CLK_PLL3_PFD1_664_62M		9
+#define IMXRT1020_CLK_PLL3_PFD2_508_24M		10
+#define IMXRT1020_CLK_PLL3_PFD3_454_74M		11
+#define IMXRT1020_CLK_PLL2_198M			12
+#define IMXRT1020_CLK_PLL3_120M			13
+#define IMXRT1020_CLK_PLL3_80M			14
+#define IMXRT1020_CLK_PLL3_60M			15
+#define IMXRT1020_CLK_PLL2_BYPASS		16
+#define IMXRT1020_CLK_PLL3_BYPASS		17
+#define IMXRT1020_CLK_PLL6_BYPASS		18
+#define IMXRT1020_CLK_PRE_PERIPH_SEL		19
+#define IMXRT1020_CLK_PERIPH_SEL		20
+#define IMXRT1020_CLK_SEMC_ALT_SEL		21
+#define IMXRT1020_CLK_SEMC_SEL			22
+#define IMXRT1020_CLK_USDHC1_SEL		23
+#define IMXRT1020_CLK_USDHC2_SEL		24
+#define IMXRT1020_CLK_LPUART_SEL		25
+#define IMXRT1020_CLK_ARM_PODF			26
+#define IMXRT1020_CLK_LPUART_PODF		27
+#define IMXRT1020_CLK_USDHC1_PODF		28
+#define IMXRT1020_CLK_USDHC2_PODF		29
+#define IMXRT1020_CLK_SEMC_PODF			30
+#define IMXRT1020_CLK_AHB_PODF			31
+#define IMXRT1020_CLK_USDHC1			32
+#define IMXRT1020_CLK_USDHC2			33
+#define IMXRT1020_CLK_LPUART1			34
+#define IMXRT1020_CLK_SEMC			35
+#define IMXRT1020_CLK_PLL2_SYS			36
+#define IMXRT1020_CLK_PLL3_USB_OTG		37
+#define IMXRT1020_CLK_PLL4_AUDIO		38
+#define IMXRT1020_CLK_PLL6_ENET			39
+#define IMXRT1020_CLK_END			40
+
+#endif /* __DT_BINDINGS_CLOCK_IMXRT1020_H */