u-boot/include/sandbox-clk.h
Lukasz Majewski 87e460c304 clk: sandbox: Add sandbox test code for Common Clock Framework [CCF]
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>
2019-07-19 14:50:30 +02:00

76 lines
1.9 KiB
C

/* SPDX-License-Identifier: GPL-2.0+ */
/*
* Copyright (C) 2019
* Lukasz Majewski, DENX Software Engineering, lukma@denx.de
*/
#ifndef __SANDBOX_CLK_H__
#define __SANDBOX_CLK_H__
#include <linux/clk-provider.h>
enum {
SANDBOX_CLK_PLL2 = 1,
SANDBOX_CLK_PLL3,
SANDBOX_CLK_PLL3_60M,
SANDBOX_CLK_PLL3_80M,
SANDBOX_CLK_ECSPI_ROOT,
SANDBOX_CLK_ECSPI0,
SANDBOX_CLK_ECSPI1,
SANDBOX_CLK_USDHC1_SEL,
SANDBOX_CLK_USDHC2_SEL,
};
enum sandbox_pllv3_type {
SANDBOX_PLLV3_GENERIC,
SANDBOX_PLLV3_USB,
};
struct clk *sandbox_clk_pllv3(enum sandbox_pllv3_type type, const char *name,
const char *parent_name, void __iomem *base,
u32 div_mask);
static inline struct clk *sandbox_clk_fixed_factor(const char *name,
const char *parent,
unsigned int mult,
unsigned int div)
{
return clk_register_fixed_factor(NULL, name, parent,
CLK_SET_RATE_PARENT, mult, div);
}
static inline struct clk *sandbox_clk_divider(const char *name,
const char *parent,
void __iomem *reg, u8 shift,
u8 width)
{
return clk_register_divider(NULL, name, parent, CLK_SET_RATE_PARENT,
reg, shift, width, 0);
}
struct clk *sandbox_clk_register_gate2(struct device *dev, const char *name,
const char *parent_name,
unsigned long flags,
void __iomem *reg, u8 bit_idx,
u8 cgr_val, u8 clk_gate_flags);
static inline struct clk *sandbox_clk_gate2(const char *name,
const char *parent,
void __iomem *reg, u8 shift)
{
return sandbox_clk_register_gate2(NULL, name, parent,
CLK_SET_RATE_PARENT, reg, shift,
0x3, 0);
}
static inline struct clk *sandbox_clk_mux(const char *name, void __iomem *reg,
u8 shift, u8 width,
const char * const *parents,
int num_parents)
{
return clk_register_mux(NULL, name, parents, num_parents,
CLK_SET_RATE_NO_REPARENT, reg, shift,
width, 0);
}
#endif /* __SANDBOX_CLK_H__ */