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OpenCloudOS-Kernel/include/soc/at91/atmel-sfr.h

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ARM: dts: at91: sama5d2: add SFR node This SFR node is looked up by the I2S controller driver to tune the SFR_I2SCLKSEL register. Signed-off-by: Cyrille Pitchen <cyrille.pitchen@atmel.com> Signed-off-by: Ludovic Desroches <ludovic.desroches@atmel.com> Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2016-03-18 00:04:00 +08:00
/*
* Atmel SFR (Special Function Registers) register offsets and bit definitions.
*
* Copyright (C) 2016 Atmel
*
* Author: Ludovic Desroches <ludovic.desroches@atmel.com>
*
* 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.
*/
#ifndef _LINUX_MFD_SYSCON_ATMEL_SFR_H
#define _LINUX_MFD_SYSCON_ATMEL_SFR_H
usb: ohci-at91: Forcibly suspend ports while USB suspend The usb controller does not manage correctly the suspend mode for the ehci. In echi mode, there is no way to suspend without any device connected to it. This is why this specific control is added to fix this issue. Since the suspend mode works in ohci mode, this specific control works by suspend the usb controller in ohci mode. This specific control is by setting the SUSPEND_A/B/C fields of SFR_OHCIICR(OHCI Interrupt Configuration Register) in the SFR while the OHCI USB suspend. This set operation must be done before the USB clock disabled, clear operation after the USB clock enabled. Signed-off-by: Wenyou Yang <wenyou.yang@atmel.com> Reviewed-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-08-23 09:05:29 +08:00
#define AT91_SFR_DDRCFG 0x04 /* DDR Configuration Register */
/* 0x08 ~ 0x0c: Reserved */
#define AT91_SFR_OHCIICR 0x10 /* OHCI INT Configuration Register */
#define AT91_SFR_OHCIISR 0x14 /* OHCI INT Status Register */
clk: at91: utmi: set the mainck rate By default, it is assumed that the UTMI clock is generated from a 12 MHz reference clock (MAINCK). If it's not the case, the FREQ field of the SFR_UTMICKTRIM has to be updated to generate the UTMI clock in the proper way. The UTMI clock has a fixed rate of 480 MHz. In fact, there is no multiplier we can configure. The multiplier is managed internally, depending on the reference clock frequency, to achieve the target of 480 MHz. Signed-off-by: Ludovic Desroches <ludovic.desroches@microchip.com> Acked-by: Ingo van Lil <inguin@gmx.de> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-09-06 17:51:59 +08:00
#define AT91_SFR_UTMICKTRIM 0x30 /* UTMI Clock Trimming Register */
ARM: dts: at91: sama5d2: add SFR node This SFR node is looked up by the I2S controller driver to tune the SFR_I2SCLKSEL register. Signed-off-by: Cyrille Pitchen <cyrille.pitchen@atmel.com> Signed-off-by: Ludovic Desroches <ludovic.desroches@atmel.com> Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2016-03-18 00:04:00 +08:00
#define AT91_SFR_I2SCLKSEL 0x90 /* I2SC Register */
usb: ohci-at91: Forcibly suspend ports while USB suspend The usb controller does not manage correctly the suspend mode for the ehci. In echi mode, there is no way to suspend without any device connected to it. This is why this specific control is added to fix this issue. Since the suspend mode works in ohci mode, this specific control works by suspend the usb controller in ohci mode. This specific control is by setting the SUSPEND_A/B/C fields of SFR_OHCIICR(OHCI Interrupt Configuration Register) in the SFR while the OHCI USB suspend. This set operation must be done before the USB clock disabled, clear operation after the USB clock enabled. Signed-off-by: Wenyou Yang <wenyou.yang@atmel.com> Reviewed-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-08-23 09:05:29 +08:00
/* Field definitions */
#define AT91_OHCIICR_SUSPEND_A BIT(8)
#define AT91_OHCIICR_SUSPEND_B BIT(9)
#define AT91_OHCIICR_SUSPEND_C BIT(10)
#define AT91_OHCIICR_USB_SUSPEND (AT91_OHCIICR_SUSPEND_A | \
AT91_OHCIICR_SUSPEND_B | \
AT91_OHCIICR_SUSPEND_C)
clk: at91: utmi: set the mainck rate By default, it is assumed that the UTMI clock is generated from a 12 MHz reference clock (MAINCK). If it's not the case, the FREQ field of the SFR_UTMICKTRIM has to be updated to generate the UTMI clock in the proper way. The UTMI clock has a fixed rate of 480 MHz. In fact, there is no multiplier we can configure. The multiplier is managed internally, depending on the reference clock frequency, to achieve the target of 480 MHz. Signed-off-by: Ludovic Desroches <ludovic.desroches@microchip.com> Acked-by: Ingo van Lil <inguin@gmx.de> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-09-06 17:51:59 +08:00
#define AT91_UTMICKTRIM_FREQ GENMASK(1, 0)
usb: ohci-at91: Forcibly suspend ports while USB suspend The usb controller does not manage correctly the suspend mode for the ehci. In echi mode, there is no way to suspend without any device connected to it. This is why this specific control is added to fix this issue. Since the suspend mode works in ohci mode, this specific control works by suspend the usb controller in ohci mode. This specific control is by setting the SUSPEND_A/B/C fields of SFR_OHCIICR(OHCI Interrupt Configuration Register) in the SFR while the OHCI USB suspend. This set operation must be done before the USB clock disabled, clear operation after the USB clock enabled. Signed-off-by: Wenyou Yang <wenyou.yang@atmel.com> Reviewed-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-08-23 09:05:29 +08:00
ARM: dts: at91: sama5d2: add SFR node This SFR node is looked up by the I2S controller driver to tune the SFR_I2SCLKSEL register. Signed-off-by: Cyrille Pitchen <cyrille.pitchen@atmel.com> Signed-off-by: Ludovic Desroches <ludovic.desroches@atmel.com> Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2016-03-18 00:04:00 +08:00
#endif /* _LINUX_MFD_SYSCON_ATMEL_SFR_H */