87e460c304
This patch provides code to implement the CCF clock tree in sandbox. It uses all the introduced primitives; some generic ones are reused, some sandbox specific were developed. In that way (after introducing the real CCF tree in sandbox) the recently added to clk-uclass.c: clk_get_by_id() and clk_get_parent_rate() are tested in their natural work environment. Usage (sandbox_defconfig and sandbox_flattree_defconfig): ./u-boot --fdt arch/sandbox/dts/test.dtb --command "ut dm clk_ccf" Signed-off-by: Lukasz Majewski <lukma@denx.de>
77 lines
1.9 KiB
C
77 lines
1.9 KiB
C
/* SPDX-License-Identifier: GPL-2.0+ */
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/*
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* Copyright (C) 2019
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* Lukasz Majewski, DENX Software Engineering, lukma@denx.de
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*/
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#ifndef __SANDBOX_CLK_H__
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#define __SANDBOX_CLK_H__
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#include <linux/clk-provider.h>
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enum {
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SANDBOX_CLK_PLL2 = 1,
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SANDBOX_CLK_PLL3,
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SANDBOX_CLK_PLL3_60M,
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SANDBOX_CLK_PLL3_80M,
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SANDBOX_CLK_ECSPI_ROOT,
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SANDBOX_CLK_ECSPI0,
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SANDBOX_CLK_ECSPI1,
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SANDBOX_CLK_USDHC1_SEL,
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SANDBOX_CLK_USDHC2_SEL,
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};
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enum sandbox_pllv3_type {
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SANDBOX_PLLV3_GENERIC,
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SANDBOX_PLLV3_USB,
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};
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struct clk *sandbox_clk_pllv3(enum sandbox_pllv3_type type, const char *name,
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const char *parent_name, void __iomem *base,
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u32 div_mask);
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static inline struct clk *sandbox_clk_fixed_factor(const char *name,
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const char *parent,
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unsigned int mult,
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unsigned int div)
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{
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return clk_register_fixed_factor(NULL, name, parent,
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CLK_SET_RATE_PARENT, mult, div);
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}
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static inline struct clk *sandbox_clk_divider(const char *name,
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const char *parent,
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void __iomem *reg, u8 shift,
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u8 width)
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{
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return clk_register_divider(NULL, name, parent, CLK_SET_RATE_PARENT,
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reg, shift, width, 0);
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}
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struct clk *sandbox_clk_register_gate2(struct device *dev, const char *name,
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const char *parent_name,
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unsigned long flags,
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void __iomem *reg, u8 bit_idx,
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u8 cgr_val, u8 clk_gate_flags);
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static inline struct clk *sandbox_clk_gate2(const char *name,
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const char *parent,
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void __iomem *reg, u8 shift)
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{
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return sandbox_clk_register_gate2(NULL, name, parent,
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CLK_SET_RATE_PARENT, reg, shift,
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0x3, 0);
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}
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static inline struct clk *sandbox_clk_mux(const char *name, void __iomem *reg,
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u8 shift, u8 width,
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const char * const *parents,
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int num_parents)
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{
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return clk_register_mux(NULL, name, parents, num_parents,
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CLK_SET_RATE_NO_REPARENT, reg, shift,
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width, 0);
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}
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#endif /* __SANDBOX_CLK_H__ */
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