2 * Copyright (C) 2015-2016 Wills Wang <wills.wang@live.com>
4 * SPDX-License-Identifier: GPL-2.0+
11 #include <dm/pinctrl.h>
12 #include <mach/ar71xx_regs.h>
14 DECLARE_GLOBAL_DATA_PTR
;
22 struct ar933x_pinctrl_priv
{
26 static void pinctrl_ar933x_spi_config(struct ar933x_pinctrl_priv
*priv
, int cs
)
30 clrsetbits_be32(priv
->regs
+ AR71XX_GPIO_REG_OE
,
31 AR933X_GPIO(4), AR933X_GPIO(3) |
32 AR933X_GPIO(5) | AR933X_GPIO(2));
33 setbits_be32(priv
->regs
+ AR71XX_GPIO_REG_FUNC
,
34 AR933X_GPIO_FUNC_SPI_EN
|
35 AR933X_GPIO_FUNC_RES_TRUE
);
40 static void pinctrl_ar933x_uart_config(struct ar933x_pinctrl_priv
*priv
, int uart_id
)
44 clrsetbits_be32(priv
->regs
+ AR71XX_GPIO_REG_OE
,
45 AR933X_GPIO(9), AR933X_GPIO(10));
46 setbits_be32(priv
->regs
+ AR71XX_GPIO_REG_FUNC
,
47 AR933X_GPIO_FUNC_UART_EN
|
48 AR933X_GPIO_FUNC_RES_TRUE
);
53 static int ar933x_pinctrl_request(struct udevice
*dev
, int func
, int flags
)
55 struct ar933x_pinctrl_priv
*priv
= dev_get_priv(dev
);
57 debug("%s: func=%x, flags=%x\n", __func__
, func
, flags
);
60 pinctrl_ar933x_spi_config(priv
, flags
);
63 pinctrl_ar933x_uart_config(priv
, func
);
72 static int ar933x_pinctrl_get_periph_id(struct udevice
*dev
,
73 struct udevice
*periph
)
78 ret
= fdtdec_get_int_array(gd
->fdt_blob
, periph
->of_offset
,
79 "interrupts", cell
, ARRAY_SIZE(cell
));
85 return PERIPH_ID_UART0
;
87 return PERIPH_ID_SPI0
;
92 static int ar933x_pinctrl_set_state_simple(struct udevice
*dev
,
93 struct udevice
*periph
)
97 func
= ar933x_pinctrl_get_periph_id(dev
, periph
);
100 return ar933x_pinctrl_request(dev
, func
, 0);
103 static struct pinctrl_ops ar933x_pinctrl_ops
= {
104 .set_state_simple
= ar933x_pinctrl_set_state_simple
,
105 .request
= ar933x_pinctrl_request
,
106 .get_periph_id
= ar933x_pinctrl_get_periph_id
,
109 static int ar933x_pinctrl_probe(struct udevice
*dev
)
111 struct ar933x_pinctrl_priv
*priv
= dev_get_priv(dev
);
114 addr
= dev_get_addr(dev
);
115 if (addr
== FDT_ADDR_T_NONE
)
118 priv
->regs
= map_physmem(addr
,
124 static const struct udevice_id ar933x_pinctrl_ids
[] = {
125 { .compatible
= "qca,ar933x-pinctrl" },
129 U_BOOT_DRIVER(pinctrl_ar933x
) = {
130 .name
= "pinctrl_ar933x",
131 .id
= UCLASS_PINCTRL
,
132 .of_match
= ar933x_pinctrl_ids
,
133 .priv_auto_alloc_size
= sizeof(struct ar933x_pinctrl_priv
),
134 .ops
= &ar933x_pinctrl_ops
,
135 .probe
= ar933x_pinctrl_probe
,