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u-boot/arch/arm/include/asm/arch-sunxi/ccu.h

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clk: Add Allwinner A64 CLK driver Add initial clock driver for Allwinner A64. Implement USB clock enable and disable functions for OHCI, EHCI, OTG and USBPHY gate and clock registers via ccu clk gate table. Signed-off-by: Jagan Teki <jagan@amarulasolutions.com> Acked-by: Maxime Ripard <maxime.ripard@bootlin.com>
2018-12-22 16:02:49 +00:00
// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (C) 2018 Amarula Solutions.
* Author: Jagan Teki <jagan@amarulasolutions.com>
*/
#ifndef _ASM_ARCH_CCU_H
#define _ASM_ARCH_CCU_H
common: Drop linux/bitops.h from common header Move this uncommon header out of the common header. Signed-off-by: Simon Glass <sjg@chromium.org>
2020-05-10 17:40:13 +00:00
#ifndef __ASSEMBLY__
#include <linux/bitops.h>
#endif
clk: Add Allwinner A64 CLK driver Add initial clock driver for Allwinner A64. Implement USB clock enable and disable functions for OHCI, EHCI, OTG and USBPHY gate and clock registers via ccu clk gate table. Signed-off-by: Jagan Teki <jagan@amarulasolutions.com> Acked-by: Maxime Ripard <maxime.ripard@bootlin.com>
2018-12-22 16:02:49 +00:00
/**
reset: Add Allwinner RESET driver Add common reset driver for all Allwinner SoC's. Since CLK and RESET share common DT compatible, it is CLK driver job is to bind the reset driver. So add CLK bind call on respective SoC driver by passing ccu map descriptor so-that reset deassert, deassert operations held based on ccu reset table defined from CLK driver. Select DM_RESET via CLK_SUNXI, this make hidden section of RESET since CLK and RESET share common DT compatible and code. Signed-off-by: Jagan Teki <jagan@amarulasolutions.com> Acked-by: Maxime Ripard <maxime.ripard@bootlin.com>
2019-01-18 16:48:13 +00:00
* enum ccu_flags - ccu clock/reset flags
clk: Add Allwinner A64 CLK driver Add initial clock driver for Allwinner A64. Implement USB clock enable and disable functions for OHCI, EHCI, OTG and USBPHY gate and clock registers via ccu clk gate table. Signed-off-by: Jagan Teki <jagan@amarulasolutions.com> Acked-by: Maxime Ripard <maxime.ripard@bootlin.com>
2018-12-22 16:02:49 +00:00
*
* @CCU_CLK_F_IS_VALID: is given clock gate is valid?
reset: Add Allwinner RESET driver Add common reset driver for all Allwinner SoC's. Since CLK and RESET share common DT compatible, it is CLK driver job is to bind the reset driver. So add CLK bind call on respective SoC driver by passing ccu map descriptor so-that reset deassert, deassert operations held based on ccu reset table defined from CLK driver. Select DM_RESET via CLK_SUNXI, this make hidden section of RESET since CLK and RESET share common DT compatible and code. Signed-off-by: Jagan Teki <jagan@amarulasolutions.com> Acked-by: Maxime Ripard <maxime.ripard@bootlin.com>
2019-01-18 16:48:13 +00:00
* @CCU_RST_F_IS_VALID: is given reset control is valid?
clk: Add Allwinner A64 CLK driver Add initial clock driver for Allwinner A64. Implement USB clock enable and disable functions for OHCI, EHCI, OTG and USBPHY gate and clock registers via ccu clk gate table. Signed-off-by: Jagan Teki <jagan@amarulasolutions.com> Acked-by: Maxime Ripard <maxime.ripard@bootlin.com>
2018-12-22 16:02:49 +00:00
*/
enum ccu_flags {
CCU_CLK_F_IS_VALID = BIT(0),
reset: Add Allwinner RESET driver Add common reset driver for all Allwinner SoC's. Since CLK and RESET share common DT compatible, it is CLK driver job is to bind the reset driver. So add CLK bind call on respective SoC driver by passing ccu map descriptor so-that reset deassert, deassert operations held based on ccu reset table defined from CLK driver. Select DM_RESET via CLK_SUNXI, this make hidden section of RESET since CLK and RESET share common DT compatible and code. Signed-off-by: Jagan Teki <jagan@amarulasolutions.com> Acked-by: Maxime Ripard <maxime.ripard@bootlin.com>
2019-01-18 16:48:13 +00:00
CCU_RST_F_IS_VALID = BIT(1),
clk: Add Allwinner A64 CLK driver Add initial clock driver for Allwinner A64. Implement USB clock enable and disable functions for OHCI, EHCI, OTG and USBPHY gate and clock registers via ccu clk gate table. Signed-off-by: Jagan Teki <jagan@amarulasolutions.com> Acked-by: Maxime Ripard <maxime.ripard@bootlin.com>
2018-12-22 16:02:49 +00:00
};
/**
* struct ccu_clk_gate - ccu clock gate
* @off: gate offset
* @bit: gate bit
* @flags: ccu clock gate flags
*/
struct ccu_clk_gate {
u16 off;
u32 bit;
enum ccu_flags flags;
};
#define GATE(_off, _bit) { \
.off = _off, \
.bit = _bit, \
.flags = CCU_CLK_F_IS_VALID, \
}
reset: Add Allwinner RESET driver Add common reset driver for all Allwinner SoC's. Since CLK and RESET share common DT compatible, it is CLK driver job is to bind the reset driver. So add CLK bind call on respective SoC driver by passing ccu map descriptor so-that reset deassert, deassert operations held based on ccu reset table defined from CLK driver. Select DM_RESET via CLK_SUNXI, this make hidden section of RESET since CLK and RESET share common DT compatible and code. Signed-off-by: Jagan Teki <jagan@amarulasolutions.com> Acked-by: Maxime Ripard <maxime.ripard@bootlin.com>
2019-01-18 16:48:13 +00:00
/**
* struct ccu_reset - ccu reset
* @off: reset offset
* @bit: reset bit
* @flags: ccu reset control flags
*/
struct ccu_reset {
u16 off;
u32 bit;
enum ccu_flags flags;
};
#define RESET(_off, _bit) { \
.off = _off, \
.bit = _bit, \
.flags = CCU_RST_F_IS_VALID, \
}
clk: Add Allwinner A64 CLK driver Add initial clock driver for Allwinner A64. Implement USB clock enable and disable functions for OHCI, EHCI, OTG and USBPHY gate and clock registers via ccu clk gate table. Signed-off-by: Jagan Teki <jagan@amarulasolutions.com> Acked-by: Maxime Ripard <maxime.ripard@bootlin.com>
2018-12-22 16:02:49 +00:00
/**
* struct ccu_desc - clock control unit descriptor
*
* @gates: clock gates
reset: Add Allwinner RESET driver Add common reset driver for all Allwinner SoC's. Since CLK and RESET share common DT compatible, it is CLK driver job is to bind the reset driver. So add CLK bind call on respective SoC driver by passing ccu map descriptor so-that reset deassert, deassert operations held based on ccu reset table defined from CLK driver. Select DM_RESET via CLK_SUNXI, this make hidden section of RESET since CLK and RESET share common DT compatible and code. Signed-off-by: Jagan Teki <jagan@amarulasolutions.com> Acked-by: Maxime Ripard <maxime.ripard@bootlin.com>
2019-01-18 16:48:13 +00:00
* @resets: reset unit
clk: Add Allwinner A64 CLK driver Add initial clock driver for Allwinner A64. Implement USB clock enable and disable functions for OHCI, EHCI, OTG and USBPHY gate and clock registers via ccu clk gate table. Signed-off-by: Jagan Teki <jagan@amarulasolutions.com> Acked-by: Maxime Ripard <maxime.ripard@bootlin.com>
2018-12-22 16:02:49 +00:00
*/
struct ccu_desc {
const struct ccu_clk_gate *gates;
reset: Add Allwinner RESET driver Add common reset driver for all Allwinner SoC's. Since CLK and RESET share common DT compatible, it is CLK driver job is to bind the reset driver. So add CLK bind call on respective SoC driver by passing ccu map descriptor so-that reset deassert, deassert operations held based on ccu reset table defined from CLK driver. Select DM_RESET via CLK_SUNXI, this make hidden section of RESET since CLK and RESET share common DT compatible and code. Signed-off-by: Jagan Teki <jagan@amarulasolutions.com> Acked-by: Maxime Ripard <maxime.ripard@bootlin.com>
2019-01-18 16:48:13 +00:00
const struct ccu_reset *resets;
clk: Add Allwinner A64 CLK driver Add initial clock driver for Allwinner A64. Implement USB clock enable and disable functions for OHCI, EHCI, OTG and USBPHY gate and clock registers via ccu clk gate table. Signed-off-by: Jagan Teki <jagan@amarulasolutions.com> Acked-by: Maxime Ripard <maxime.ripard@bootlin.com>
2018-12-22 16:02:49 +00:00
};
/**
* struct ccu_priv - sunxi clock control unit
*
* @base: base address
* @desc: ccu descriptor
*/
struct ccu_priv {
void *base;
const struct ccu_desc *desc;
};
/**
* sunxi_clk_probe - common sunxi clock probe
* @dev: clock device
*/
int sunxi_clk_probe(struct udevice *dev);
extern struct clk_ops sunxi_clk_ops;
reset: Add Allwinner RESET driver Add common reset driver for all Allwinner SoC's. Since CLK and RESET share common DT compatible, it is CLK driver job is to bind the reset driver. So add CLK bind call on respective SoC driver by passing ccu map descriptor so-that reset deassert, deassert operations held based on ccu reset table defined from CLK driver. Select DM_RESET via CLK_SUNXI, this make hidden section of RESET since CLK and RESET share common DT compatible and code. Signed-off-by: Jagan Teki <jagan@amarulasolutions.com> Acked-by: Maxime Ripard <maxime.ripard@bootlin.com>
2019-01-18 16:48:13 +00:00
/**
* sunxi_reset_bind() - reset binding
*
* @dev: reset device
* @count: reset count
* @return 0 success, or error value
*/
int sunxi_reset_bind(struct udevice *dev, ulong count);
clk: Add Allwinner A64 CLK driver Add initial clock driver for Allwinner A64. Implement USB clock enable and disable functions for OHCI, EHCI, OTG and USBPHY gate and clock registers via ccu clk gate table. Signed-off-by: Jagan Teki <jagan@amarulasolutions.com> Acked-by: Maxime Ripard <maxime.ripard@bootlin.com>
2018-12-22 16:02:49 +00:00
#endif /* _ASM_ARCH_CCU_H */
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