upstream u-boot with additional patches for our devices/boards: https://lists.denx.de/pipermail/u-boot/2017-March/282789.html (AXP crashes) ; Gbit ethernet patch for some LIME2 revisions ; with SPI flash support
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u-boot/drivers/clk/renesas/rcar-gen2-cpg.h

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/*
* R-Car Gen2 Clock Pulse Generator
*
* Copyright (C) 2016 Cogent Embedded Inc.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 as published
* by the Free Software Foundation; version 2 of the License.
*/
#ifndef __CLK_RENESAS_RCAR_GEN2_CPG_H__
#define __CLK_RENESAS_RCAR_GEN2_CPG_H__
enum rcar_gen2_clk_types {
CLK_TYPE_GEN2_MAIN = CLK_TYPE_CUSTOM,
CLK_TYPE_GEN2_PLL0,
CLK_TYPE_GEN2_PLL1,
CLK_TYPE_GEN2_PLL3,
CLK_TYPE_GEN2_Z,
CLK_TYPE_GEN2_LB,
CLK_TYPE_GEN2_ADSP,
CLK_TYPE_GEN2_SDH,
CLK_TYPE_GEN2_SD0,
CLK_TYPE_GEN2_SD1,
CLK_TYPE_GEN2_QSPI,
CLK_TYPE_GEN2_RCAN,
};
struct rcar_gen2_cpg_pll_config {
unsigned int extal_div;
unsigned int pll1_mult;
unsigned int pll3_mult;
unsigned int pll0_mult; /* leave as zero if PLL0CR exists */
};
struct gen2_clk_priv {
void __iomem *base;
struct cpg_mssr_info *info;
struct clk clk_extal;
struct clk clk_extal_usb;
const struct rcar_gen2_cpg_pll_config *cpg_pll_config;
};
int gen2_clk_probe(struct udevice *dev);
int gen2_clk_remove(struct udevice *dev);
extern const struct clk_ops gen2_clk_ops;
#endif