mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-14 08:57:58 +00:00
59 lines
1.3 KiB
C
59 lines
1.3 KiB
C
|
/*
|
||
|
|
* K2G: Pinmux configuration
|
||
|
|
*
|
||
|
|
* (C) Copyright 2015
|
||
|
|
* Texas Instruments Incorporated, <www.ti.com>
|
||
|
|
*
|
||
|
|
* SPDX-License-Identifier: GPL-2.0+
|
||
|
|
*/
|
||
|
|
|
||
|
|
#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 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 */
|