GK SDK 源码库: XMIPCLinuxV100R005C00SPC030 (kernel/tools/open_source excluded)

source/bootloader/u-boot-2020.01/arch/arm/include/asm/arch-mxs/clock.h

@@ -0,0 +1,53 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * Freescale i.MX23/i.MX28 Clock
+ *
+ * Copyright (C) 2011 Marek Vasut <marek.vasut@gmail.com>
+ * on behalf of DENX Software Engineering GmbH
+ */
+
+#ifndef __CLOCK_H__
+#define __CLOCK_H__
+
+enum mxc_clock {
+	MXC_ARM_CLK = 0,
+	MXC_AHB_CLK,
+	MXC_IPG_CLK,
+	MXC_EMI_CLK,
+	MXC_GPMI_CLK,
+	MXC_IO0_CLK,
+	MXC_IO1_CLK,
+	MXC_XTAL_CLK,
+	MXC_SSP0_CLK,
+#ifdef CONFIG_MX28
+	MXC_SSP1_CLK,
+	MXC_SSP2_CLK,
+	MXC_SSP3_CLK,
+#endif
+};
+
+enum mxs_ioclock {
+	MXC_IOCLK0 = 0,
+	MXC_IOCLK1,
+};
+
+enum mxs_sspclock {
+	MXC_SSPCLK0 = 0,
+#ifdef CONFIG_MX28
+	MXC_SSPCLK1,
+	MXC_SSPCLK2,
+	MXC_SSPCLK3,
+#endif
+};
+
+uint32_t mxc_get_clock(enum mxc_clock clk);
+
+void mxs_set_ioclk(enum mxs_ioclock io, uint32_t freq);
+void mxs_set_sspclk(enum mxs_sspclock ssp, uint32_t freq, int xtal);
+void mxs_set_ssp_busclock(unsigned int bus, uint32_t freq);
+void mxs_set_lcdclk(uint32_t __maybe_unused lcd_base, uint32_t freq);
+
+/* Compatibility with the FEC Ethernet driver */
+#define	imx_get_fecclk()	mxc_get_clock(MXC_AHB_CLK)
+
+#endif	/* __CLOCK_H__ */