mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-18 10:48:51 +00:00
0b1284eb52
It is a pain to have to specify the value 10 in each call. Add a new dectoul() function and update the code to use it. Signed-off-by: Simon Glass <sjg@chromium.org>
67 lines
1.6 KiB
C
67 lines
1.6 KiB
C
// SPDX-License-Identifier: GPL-2.0+
|
|
/*
|
|
* Pinctrl driver for Nexell SoCs
|
|
* (C) Copyright 2016 Nexell
|
|
* Bongyu, KOO <freestyle@nexell.co.kr>
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <dm.h>
|
|
#include <errno.h>
|
|
#include <asm/global_data.h>
|
|
#include <asm/io.h>
|
|
#include "pinctrl-nexell.h"
|
|
#include "pinctrl-s5pxx18.h"
|
|
|
|
DECLARE_GLOBAL_DATA_PTR;
|
|
|
|
/* given a pin-name, return the address of pin config registers */
|
|
unsigned long pin_to_bank_base(struct udevice *dev, const char *pin_name,
|
|
u32 *pin)
|
|
{
|
|
struct nexell_pinctrl_priv *priv = dev_get_priv(dev);
|
|
const struct nexell_pin_ctrl *pin_ctrl = priv->pin_ctrl;
|
|
const struct nexell_pin_bank_data *bank_data = pin_ctrl->pin_banks;
|
|
u32 nr_banks = pin_ctrl->nr_banks, idx = 0;
|
|
char bank[10];
|
|
|
|
/*
|
|
* The format of the pin name is <bank name>-<pin_number>.
|
|
* Example: gpioa-4 (gpioa is the bank name and 4 is the pin number)
|
|
*/
|
|
while (pin_name[idx] != '-') {
|
|
bank[idx] = pin_name[idx];
|
|
idx++;
|
|
}
|
|
bank[idx] = '\0';
|
|
*pin = (u32)dectoul(&pin_name[++idx], NULL);
|
|
|
|
/* lookup the pin bank data using the pin bank name */
|
|
for (idx = 0; idx < nr_banks; idx++)
|
|
if (!strcmp(bank, bank_data[idx].name))
|
|
break;
|
|
|
|
return priv->base + bank_data[idx].offset;
|
|
}
|
|
|
|
int nexell_pinctrl_probe(struct udevice *dev)
|
|
{
|
|
struct nexell_pinctrl_priv *priv;
|
|
fdt_addr_t base;
|
|
|
|
priv = dev_get_priv(dev);
|
|
if (!priv)
|
|
return -EINVAL;
|
|
|
|
base = devfdt_get_addr(dev);
|
|
if (base == FDT_ADDR_T_NONE)
|
|
return -EINVAL;
|
|
|
|
priv->base = base;
|
|
|
|
priv->pin_ctrl = (struct nexell_pin_ctrl *)dev_get_driver_data(dev);
|
|
|
|
s5pxx18_pinctrl_init(dev);
|
|
|
|
return 0;
|
|
}
|