2 * Pinctrl driver for Rockchip 3036 SoCs
3 * (C) Copyright 2015 Rockchip Electronics Co., Ltd
5 * SPDX-License-Identifier: GPL-2.0+
13 #include <asm/arch/clock.h>
14 #include <asm/arch/grf_rk3036.h>
15 #include <asm/arch/hardware.h>
16 #include <asm/arch/periph.h>
17 #include <dm/pinctrl.h>
19 DECLARE_GLOBAL_DATA_PTR
;
21 struct rk3036_pinctrl_priv
{
22 struct rk3036_grf
*grf
;
25 static void pinctrl_rk3036_pwm_config(struct rk3036_grf
*grf
, int pwm_id
)
29 rk_clrsetreg(&grf
->gpio0d_iomux
, GPIO0D2_MASK
<< GPIO0D2_SHIFT
,
30 GPIO0D2_PWM0
<< GPIO0D2_SHIFT
);
33 rk_clrsetreg(&grf
->gpio0a_iomux
, GPIO0A0_MASK
<< GPIO0A0_SHIFT
,
34 GPIO0A0_PWM1
<< GPIO0A0_SHIFT
);
37 rk_clrsetreg(&grf
->gpio0a_iomux
, GPIO0A1_MASK
<< GPIO0A1_SHIFT
,
38 GPIO0A1_PWM2
<< GPIO0A1_SHIFT
);
41 rk_clrsetreg(&grf
->gpio0a_iomux
, GPIO0D3_MASK
<< GPIO0D3_SHIFT
,
42 GPIO0D3_PWM3
<< GPIO0D3_SHIFT
);
45 debug("pwm id = %d iomux error!\n", pwm_id
);
50 static void pinctrl_rk3036_i2c_config(struct rk3036_grf
*grf
, int i2c_id
)
54 rk_clrsetreg(&grf
->gpio0a_iomux
,
55 GPIO0A1_MASK
<< GPIO0A1_SHIFT
|
56 GPIO0A0_MASK
<< GPIO0A0_SHIFT
,
57 GPIO0A1_I2C0_SDA
<< GPIO0A1_SHIFT
|
58 GPIO0A0_I2C0_SCL
<< GPIO0A0_SHIFT
);
62 rk_clrsetreg(&grf
->gpio0a_iomux
,
63 GPIO0A3_MASK
<< GPIO0A3_SHIFT
|
64 GPIO0A2_MASK
<< GPIO0A2_SHIFT
,
65 GPIO0A3_I2C1_SDA
<< GPIO0A3_SHIFT
|
66 GPIO0A2_I2C1_SCL
<< GPIO0A2_SHIFT
);
69 rk_clrsetreg(&grf
->gpio2c_iomux
,
70 GPIO2C5_MASK
<< GPIO2C5_SHIFT
|
71 GPIO2C4_MASK
<< GPIO2C4_SHIFT
,
72 GPIO2C5_I2C2_SCL
<< GPIO2C5_SHIFT
|
73 GPIO2C4_I2C2_SDA
<< GPIO2C4_SHIFT
);
79 static void pinctrl_rk3036_spi_config(struct rk3036_grf
*grf
, int cs
)
83 rk_clrsetreg(&grf
->gpio1d_iomux
,
84 GPIO1D6_MASK
<< GPIO1D6_SHIFT
,
85 GPIO1D6_SPI_CSN0
<< GPIO1D6_SHIFT
);
88 rk_clrsetreg(&grf
->gpio1d_iomux
,
89 GPIO1D7_MASK
<< GPIO1D7_SHIFT
,
90 GPIO1D7_SPI_CSN1
<< GPIO1D7_SHIFT
);
93 rk_clrsetreg(&grf
->gpio1d_iomux
,
94 GPIO1D5_MASK
<< GPIO1D5_SHIFT
|
95 GPIO1D4_MASK
<< GPIO1D4_SHIFT
,
96 GPIO1D5_SPI_TXD
<< GPIO1D5_SHIFT
|
97 GPIO1D4_SPI_RXD
<< GPIO1D4_SHIFT
);
99 rk_clrsetreg(&grf
->gpio2a_iomux
,
100 GPIO2A0_MASK
<< GPIO2A0_SHIFT
,
101 GPIO2A0_SPI_CLK
<< GPIO2A0_SHIFT
);
104 static void pinctrl_rk3036_uart_config(struct rk3036_grf
*grf
, int uart_id
)
107 case PERIPH_ID_UART0
:
108 rk_clrsetreg(&grf
->gpio0c_iomux
,
109 GPIO0C3_MASK
<< GPIO0C3_SHIFT
|
110 GPIO0C2_MASK
<< GPIO0C2_SHIFT
|
111 GPIO0C1_MASK
<< GPIO0C1_SHIFT
|
112 GPIO0C0_MASK
<< GPIO0C0_SHIFT
,
113 GPIO0C3_UART0_CTSN
<< GPIO0C3_SHIFT
|
114 GPIO0C2_UART0_RTSN
<< GPIO0C2_SHIFT
|
115 GPIO0C1_UART0_SIN
<< GPIO0C1_SHIFT
|
116 GPIO0C0_UART0_SOUT
<< GPIO0C0_SHIFT
);
118 case PERIPH_ID_UART1
:
119 rk_clrsetreg(&grf
->gpio2c_iomux
,
120 GPIO2C7_MASK
<< GPIO2C7_SHIFT
|
121 GPIO2C6_MASK
<< GPIO2C6_SHIFT
,
122 GPIO2C7_UART1_SOUT
<< GPIO2C7_SHIFT
|
123 GPIO2C6_UART1_SIN
<< GPIO2C6_SHIFT
);
125 case PERIPH_ID_UART2
:
126 rk_clrsetreg(&grf
->gpio1c_iomux
,
127 GPIO1C3_MASK
<< GPIO1C3_SHIFT
|
128 GPIO1C2_MASK
<< GPIO1C2_SHIFT
,
129 GPIO1C3_UART2_SOUT
<< GPIO1C3_SHIFT
|
130 GPIO1C2_UART2_SIN
<< GPIO1C2_SHIFT
);
135 static void pinctrl_rk3036_sdmmc_config(struct rk3036_grf
*grf
, int mmc_id
)
139 rk_clrsetreg(&grf
->gpio1d_iomux
, 0xffff,
140 GPIO1D7_EMMC_D7
<< GPIO1D7_SHIFT
|
141 GPIO1D6_EMMC_D6
<< GPIO1D6_SHIFT
|
142 GPIO1D5_EMMC_D5
<< GPIO1D5_SHIFT
|
143 GPIO1D4_EMMC_D4
<< GPIO1D4_SHIFT
|
144 GPIO1D3_EMMC_D3
<< GPIO1D3_SHIFT
|
145 GPIO1D2_EMMC_D2
<< GPIO1D2_SHIFT
|
146 GPIO1D1_EMMC_D1
<< GPIO1D1_SHIFT
|
147 GPIO1D0_EMMC_D0
<< GPIO1D0_SHIFT
);
148 rk_clrsetreg(&grf
->gpio2a_iomux
,
149 GPIO2A4_MASK
<< GPIO2A4_SHIFT
|
150 GPIO2A1_MASK
<< GPIO2A1_SHIFT
,
151 GPIO2A4_EMMC_CMD
<< GPIO2A4_SHIFT
|
152 GPIO2A1_EMMC_CLKOUT
<< GPIO2A1_SHIFT
);
154 case PERIPH_ID_SDCARD
:
155 rk_clrsetreg(&grf
->gpio1c_iomux
, 0xffff,
156 GPIO1C5_MMC0_D3
<< GPIO1C5_SHIFT
|
157 GPIO1C4_MMC0_D2
<< GPIO1C4_SHIFT
|
158 GPIO1C3_MMC0_D1
<< GPIO1C3_SHIFT
|
159 GPIO1C2_MMC0_D0
<< GPIO1C2_SHIFT
|
160 GPIO1C1_MMC0_DETN
<< GPIO1C1_SHIFT
|
161 GPIO1C0_MMC0_CLKOUT
<< GPIO1C0_SHIFT
);
166 static int rk3036_pinctrl_request(struct udevice
*dev
, int func
, int flags
)
168 struct rk3036_pinctrl_priv
*priv
= dev_get_priv(dev
);
170 debug("%s: func=%x, flags=%x\n", __func__
, func
, flags
);
176 pinctrl_rk3036_pwm_config(priv
->grf
, func
);
181 pinctrl_rk3036_i2c_config(priv
->grf
, func
);
184 pinctrl_rk3036_spi_config(priv
->grf
, flags
);
186 case PERIPH_ID_UART0
:
187 case PERIPH_ID_UART1
:
188 case PERIPH_ID_UART2
:
189 pinctrl_rk3036_uart_config(priv
->grf
, func
);
191 case PERIPH_ID_SDMMC0
:
192 case PERIPH_ID_SDMMC1
:
193 pinctrl_rk3036_sdmmc_config(priv
->grf
, func
);
202 static int rk3036_pinctrl_get_periph_id(struct udevice
*dev
,
203 struct udevice
*periph
)
208 ret
= fdtdec_get_int_array(gd
->fdt_blob
, dev_of_offset(periph
),
209 "interrupts", cell
, ARRAY_SIZE(cell
));
215 return PERIPH_ID_SDCARD
;
217 return PERIPH_ID_EMMC
;
219 return PERIPH_ID_UART0
;
221 return PERIPH_ID_UART1
;
223 return PERIPH_ID_UART2
;
225 return PERIPH_ID_SPI0
;
227 return PERIPH_ID_I2C0
;
229 return PERIPH_ID_I2C1
;
231 return PERIPH_ID_I2C2
;
233 return PERIPH_ID_PWM0
;
238 static int rk3036_pinctrl_set_state_simple(struct udevice
*dev
,
239 struct udevice
*periph
)
243 func
= rk3036_pinctrl_get_periph_id(dev
, periph
);
246 return rk3036_pinctrl_request(dev
, func
, 0);
249 static struct pinctrl_ops rk3036_pinctrl_ops
= {
250 .set_state_simple
= rk3036_pinctrl_set_state_simple
,
251 .request
= rk3036_pinctrl_request
,
252 .get_periph_id
= rk3036_pinctrl_get_periph_id
,
255 static int rk3036_pinctrl_probe(struct udevice
*dev
)
257 struct rk3036_pinctrl_priv
*priv
= dev_get_priv(dev
);
259 priv
->grf
= syscon_get_first_range(ROCKCHIP_SYSCON_GRF
);
260 debug("%s: grf=%p\n", __func__
, priv
->grf
);
264 static const struct udevice_id rk3036_pinctrl_ids
[] = {
265 { .compatible
= "rockchip,rk3036-pinctrl" },
269 U_BOOT_DRIVER(pinctrl_rk3036
) = {
270 .name
= "pinctrl_rk3036",
271 .id
= UCLASS_PINCTRL
,
272 .of_match
= rk3036_pinctrl_ids
,
273 .priv_auto_alloc_size
= sizeof(struct rk3036_pinctrl_priv
),
274 .ops
= &rk3036_pinctrl_ops
,
275 .bind
= dm_scan_fdt_dev
,
276 .probe
= rk3036_pinctrl_probe
,