89 lines
2.6 KiB
C
89 lines
2.6 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
|
|
/*
|
|
* PRU-ICSS Subsystem user interfaces
|
|
*
|
|
* Copyright (C) 2015-2023 Texas Instruments Incorporated - http://www.ti.com
|
|
* MD Danish Anwar <danishanwar@ti.com>
|
|
*/
|
|
|
|
#ifndef _SOC_TI_PRUSS_H_
|
|
#define _SOC_TI_PRUSS_H_
|
|
|
|
#include <linux/bits.h>
|
|
#include <linux/regmap.h>
|
|
|
|
/*
|
|
* PRU_ICSS_CFG registers
|
|
* SYSCFG, ISRP, ISP, IESP, IECP, SCRP applicable on AMxxxx devices only
|
|
*/
|
|
#define PRUSS_CFG_REVID 0x00
|
|
#define PRUSS_CFG_SYSCFG 0x04
|
|
#define PRUSS_CFG_GPCFG(x) (0x08 + (x) * 4)
|
|
#define PRUSS_CFG_CGR 0x10
|
|
#define PRUSS_CFG_ISRP 0x14
|
|
#define PRUSS_CFG_ISP 0x18
|
|
#define PRUSS_CFG_IESP 0x1C
|
|
#define PRUSS_CFG_IECP 0x20
|
|
#define PRUSS_CFG_SCRP 0x24
|
|
#define PRUSS_CFG_PMAO 0x28
|
|
#define PRUSS_CFG_MII_RT 0x2C
|
|
#define PRUSS_CFG_IEPCLK 0x30
|
|
#define PRUSS_CFG_SPP 0x34
|
|
#define PRUSS_CFG_PIN_MX 0x40
|
|
|
|
/* PRUSS_GPCFG register bits */
|
|
#define PRUSS_GPCFG_PRU_GPI_MODE_MASK GENMASK(1, 0)
|
|
#define PRUSS_GPCFG_PRU_GPI_MODE_SHIFT 0
|
|
|
|
#define PRUSS_GPCFG_PRU_MUX_SEL_SHIFT 26
|
|
#define PRUSS_GPCFG_PRU_MUX_SEL_MASK GENMASK(29, 26)
|
|
|
|
/* PRUSS_MII_RT register bits */
|
|
#define PRUSS_MII_RT_EVENT_EN BIT(0)
|
|
|
|
/* PRUSS_SPP register bits */
|
|
#define PRUSS_SPP_XFER_SHIFT_EN BIT(1)
|
|
#define PRUSS_SPP_PRU1_PAD_HP_EN BIT(0)
|
|
#define PRUSS_SPP_RTU_XFR_SHIFT_EN BIT(3)
|
|
|
|
/**
|
|
* pruss_cfg_read() - read a PRUSS CFG sub-module register
|
|
* @pruss: the pruss instance handle
|
|
* @reg: register offset within the CFG sub-module
|
|
* @val: pointer to return the value in
|
|
*
|
|
* Reads a given register within the PRUSS CFG sub-module and
|
|
* returns it through the passed-in @val pointer
|
|
*
|
|
* Return: 0 on success, or an error code otherwise
|
|
*/
|
|
static int pruss_cfg_read(struct pruss *pruss, unsigned int reg, unsigned int *val)
|
|
{
|
|
if (IS_ERR_OR_NULL(pruss))
|
|
return -EINVAL;
|
|
|
|
return regmap_read(pruss->cfg_regmap, reg, val);
|
|
}
|
|
|
|
/**
|
|
* pruss_cfg_update() - configure a PRUSS CFG sub-module register
|
|
* @pruss: the pruss instance handle
|
|
* @reg: register offset within the CFG sub-module
|
|
* @mask: bit mask to use for programming the @val
|
|
* @val: value to write
|
|
*
|
|
* Programs a given register within the PRUSS CFG sub-module
|
|
*
|
|
* Return: 0 on success, or an error code otherwise
|
|
*/
|
|
static int pruss_cfg_update(struct pruss *pruss, unsigned int reg,
|
|
unsigned int mask, unsigned int val)
|
|
{
|
|
if (IS_ERR_OR_NULL(pruss))
|
|
return -EINVAL;
|
|
|
|
return regmap_update_bits(pruss->cfg_regmap, reg, mask, val);
|
|
}
|
|
|
|
#endif /* _SOC_TI_PRUSS_H_ */
|