mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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230f7ede6c
Extends FSL EHCI platform driver glue layer to support MPC5121 USB controllers. MPC5121 Rev 2.0 silicon EHCI registers are in big endian format. The appropriate flags are set using the information in the platform data structure. MPC83xx system interface registers are not available on MPC512x, so the access to these registers is isolated in MPC512x case. Furthermore the USB controller clocks must be enabled before 512x register accesses which is done by providing platform specific init callback. The MPC512x internal USB PHY doesn't provide supply voltage. For boards using different power switches allow specifying DRVVBUS and PWR_FAULT signal polarity of the MPC5121 internal PHY using "fsl,invert-drvvbus" and "fsl,invert-pwr-fault" properties in the device tree USB nodes. Adds documentation for this new device tree bindings. Signed-off-by: Anatolij Gustschin <agust@denx.de> Cc: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
120 lines
3.4 KiB
C
120 lines
3.4 KiB
C
/*
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* include/linux/fsl_devices.h
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*
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* Definitions for any platform device related flags or structures for
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* Freescale processor devices
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*
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* Maintainer: Kumar Gala <galak@kernel.crashing.org>
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*
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* Copyright 2004 Freescale Semiconductor, Inc
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or (at your
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* option) any later version.
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*/
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#ifndef _FSL_DEVICE_H_
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#define _FSL_DEVICE_H_
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#include <linux/types.h>
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/*
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* Some conventions on how we handle peripherals on Freescale chips
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*
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* unique device: a platform_device entry in fsl_plat_devs[] plus
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* associated device information in its platform_data structure.
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*
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* A chip is described by a set of unique devices.
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*
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* Each sub-arch has its own master list of unique devices and
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* enumerates them by enum fsl_devices in a sub-arch specific header
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*
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* The platform data structure is broken into two parts. The
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* first is device specific information that help identify any
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* unique features of a peripheral. The second is any
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* information that may be defined by the board or how the device
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* is connected externally of the chip.
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*
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* naming conventions:
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* - platform data structures: <driver>_platform_data
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* - platform data device flags: FSL_<driver>_DEV_<FLAG>
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* - platform data board flags: FSL_<driver>_BRD_<FLAG>
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*
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*/
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enum fsl_usb2_operating_modes {
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FSL_USB2_MPH_HOST,
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FSL_USB2_DR_HOST,
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FSL_USB2_DR_DEVICE,
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FSL_USB2_DR_OTG,
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};
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enum fsl_usb2_phy_modes {
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FSL_USB2_PHY_NONE,
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FSL_USB2_PHY_ULPI,
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FSL_USB2_PHY_UTMI,
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FSL_USB2_PHY_UTMI_WIDE,
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FSL_USB2_PHY_SERIAL,
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};
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struct clk;
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struct platform_device;
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struct fsl_usb2_platform_data {
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/* board specific information */
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enum fsl_usb2_operating_modes operating_mode;
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enum fsl_usb2_phy_modes phy_mode;
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unsigned int port_enables;
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int (*init)(struct platform_device *);
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void (*exit)(struct platform_device *);
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void __iomem *regs; /* ioremap'd register base */
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struct clk *clk;
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unsigned big_endian_mmio:1;
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unsigned big_endian_desc:1;
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unsigned es:1; /* need USBMODE:ES */
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unsigned le_setup_buf:1;
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unsigned have_sysif_regs:1;
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unsigned invert_drvvbus:1;
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unsigned invert_pwr_fault:1;
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};
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/* Flags in fsl_usb2_mph_platform_data */
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#define FSL_USB2_PORT0_ENABLED 0x00000001
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#define FSL_USB2_PORT1_ENABLED 0x00000002
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struct spi_device;
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struct fsl_spi_platform_data {
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u32 initial_spmode; /* initial SPMODE value */
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s16 bus_num;
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unsigned int flags;
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#define SPI_QE_CPU_MODE (1 << 0) /* QE CPU ("PIO") mode */
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#define SPI_CPM_MODE (1 << 1) /* CPM/QE ("DMA") mode */
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#define SPI_CPM1 (1 << 2) /* SPI unit is in CPM1 block */
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#define SPI_CPM2 (1 << 3) /* SPI unit is in CPM2 block */
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#define SPI_QE (1 << 4) /* SPI unit is in QE block */
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/* board specific information */
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u16 max_chipselect;
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void (*cs_control)(struct spi_device *spi, bool on);
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u32 sysclk;
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};
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struct mpc8xx_pcmcia_ops {
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void(*hw_ctrl)(int slot, int enable);
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int(*voltage_set)(int slot, int vcc, int vpp);
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};
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/* Returns non-zero if the current suspend operation would
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* lead to a deep sleep (i.e. power removed from the core,
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* instead of just the clock).
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*/
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#if defined(CONFIG_PPC_83xx) && defined(CONFIG_SUSPEND)
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int fsl_deep_sleep(void);
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#else
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static inline int fsl_deep_sleep(void) { return 0; }
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#endif
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#endif /* _FSL_DEVICE_H_ */
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