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-rw-r--r--arch/arm/include/asm/arch-mxs/clock.h67
1 files changed, 67 insertions, 0 deletions
diff --git a/arch/arm/include/asm/arch-mxs/clock.h b/arch/arm/include/asm/arch-mxs/clock.h
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+++ b/arch/arm/include/asm/arch-mxs/clock.h
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+/*
+ * Freescale i.MX23/i.MX28 Clock
+ *
+ * Copyright (C) 2011 Marek Vasut <marek.vasut@gmail.com>
+ * on behalf of DENX Software Engineering GmbH
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ */
+
+#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 freq);
+
+/* Compatibility with the FEC Ethernet driver */
+#define imx_get_fecclk() mxc_get_clock(MXC_AHB_CLK)
+
+#endif /* __CLOCK_H__ */
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