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/* SPDX-License-Identifier: GPL-2.0+ */
/*
* K2G: Pinmux configuration
*
* (C) Copyright 2015
* Texas Instruments Incorporated, <www.ti.com>
*/
#ifndef __ASM_ARCH_MUX_K2G_H
#define __ASM_ARCH_MUX_K2G_H
#include <common.h>
#include <asm/io.h>
#define K2G_PADCFG_REG (KS2_DEVICE_STATE_CTRL_BASE + 0x1000)
/*
* 20:19 - buffer class RW fixed
* 18 - rxactive (Input enabled for the pad ) 0 - Di; 1 - En;
* 17 - pulltypesel (0 - PULLDOWN; 1 - PULLUP);
* 16 - pulluden (0 - PULLUP/DOWN EN; 1 - DI);
* 3:0 - muxmode (available modes 0:5)
*/
#define PIN_IEN (1 << 18) /* pin input enabled */
#define PIN_PDIS (1 << 16) /* pull up/down disabled */
#define PIN_PTU (1 << 17) /* pull up */
#define PIN_PTD (0 << 17) /* pull down */
#define BUFFER_CLASS_B (0 << 19)
#define BUFFER_CLASS_C (1 << 19)
#define BUFFER_CLASS_D (2 << 19)
#define BUFFER_CLASS_E (3 << 19)
#define MODE(m) ((m) & 0x7)
#define MAX_PIN_N 260
#define MUX_CFG(value, index) \
__raw_writel(\
(value) | \
(__raw_readl(K2G_PADCFG_REG + (index << 2)) & \
(0x3 << 19)),\
(K2G_PADCFG_REG + (index << 2))\
);
struct pin_cfg {
int reg_inx;
u32 val;
};
static inline void configure_pin_mux(struct pin_cfg *pin_mux)
{
if (!pin_mux)
return;
while ((pin_mux->reg_inx >= 0) && (pin_mux->reg_inx < MAX_PIN_N)) {
MUX_CFG(pin_mux->val, pin_mux->reg_inx);
pin_mux++;
}
}
#endif /* __ASM_ARCH_MUX_K2G_H */
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