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// SPDX-License-Identifier: GPL-2.0+
/*
* Qualcomm QCS404 pinctrl
*
* (C) Copyright 2022 Sumit Garg <sumit.garg@linaro.org>
*/
#include <dm.h>
#include "pinctrl-qcom.h"
#define NORTH 0x00300000
#define SOUTH 0x00000000
#define EAST 0x06b00000
#define MAX_PIN_NAME_LEN 32
static char pin_name[MAX_PIN_NAME_LEN] __section(".data");
static const char * const msm_pinctrl_pins[] = {
"sdc1_rclk",
"sdc1_clk",
"sdc1_cmd",
"sdc1_data",
"sdc2_clk",
"sdc2_cmd",
"sdc2_data",
};
static const struct pinctrl_function msm_pinctrl_functions[] = {
{"gpio", 0},
{"rgmii_int", 1},
{"rgmii_ck", 1},
{"rgmii_tx", 1},
{"rgmii_ctl", 1},
{"rgmii_rx", 1},
{"rgmii_mdio", 1},
{"rgmii_mdc", 1},
{"blsp_i2c0", 3},
{"blsp_i2c1", 2},
{"blsp_i2c_sda_a2", 3},
{"blsp_i2c_scl_a2", 3},
{"blsp_i2c3", 2},
{"blsp_i2c4", 1},
{"blsp_uart_tx_a2", 1},
{"blsp_uart_rx_a2", 1},
};
static const unsigned int qcs404_pin_offsets[] = {
[0] = SOUTH, [1] = SOUTH, [2] = SOUTH, [3] = SOUTH, [4] = SOUTH,
[5] = SOUTH, [6] = SOUTH, [7] = SOUTH, [8] = SOUTH, [9] = SOUTH,
[10] = SOUTH, [11] = SOUTH, [12] = SOUTH, [13] = SOUTH, [14] = SOUTH,
[15] = SOUTH, [16] = SOUTH, [17] = NORTH, [18] = NORTH, [19] = NORTH,
[20] = NORTH, [21] = SOUTH, [22] = NORTH, [23] = NORTH, [24] = NORTH,
[25] = NORTH, [26] = EAST, [27] = EAST, [28] = EAST, [29] = EAST,
[30] = NORTH, [31] = NORTH, [32] = NORTH, [33] = NORTH, [34] = SOUTH,
[35] = SOUTH, [36] = NORTH, [37] = NORTH, [38] = NORTH, [39] = EAST,
[40] = EAST, [41] = EAST, [42] = EAST, [43] = EAST, [44] = EAST,
[45] = EAST, [46] = EAST, [47] = EAST, [48] = EAST, [49] = EAST,
[50] = EAST, [51] = EAST, [52] = EAST, [53] = EAST, [54] = EAST,
[55] = EAST, [56] = EAST, [57] = EAST, [58] = EAST, [59] = EAST,
[60] = NORTH, [61] = NORTH, [62] = NORTH, [63] = NORTH, [64] = NORTH,
[65] = NORTH, [66] = NORTH, [67] = NORTH, [68] = NORTH, [69] = NORTH,
[70] = NORTH, [71] = NORTH, [72] = NORTH, [73] = NORTH, [74] = NORTH,
[75] = NORTH, [76] = NORTH, [77] = NORTH, [78] = EAST, [79] = EAST,
[80] = EAST, [81] = EAST, [82] = NORTH, [83] = NORTH, [84] = NORTH,
[85] = NORTH, [86] = EAST, [87] = EAST, [88] = EAST, [89] = EAST,
[90] = EAST, [91] = EAST, [92] = EAST, [93] = EAST, [94] = EAST,
[95] = EAST, [96] = EAST, [97] = EAST, [98] = EAST, [99] = EAST,
[100] = EAST, [101] = EAST, [102] = EAST, [103] = EAST, [104] = EAST,
[105] = EAST, [106] = EAST, [107] = EAST, [108] = EAST, [109] = EAST,
[110] = EAST, [111] = EAST, [112] = EAST, [113] = EAST, [114] = EAST,
[115] = EAST, [116] = EAST, [117] = NORTH, [118] = NORTH, [119] = EAST,
/*
* There's 126 pins but the last ones are special and have non-standard registers
* so we leave them out here. The pinctrl and GPIO drivers both currently ignore
* these pins.
*/
};
static const char *qcs404_get_function_name(struct udevice *dev,
unsigned int selector)
{
return msm_pinctrl_functions[selector].name;
}
static const char *qcs404_get_pin_name(struct udevice *dev,
unsigned int selector)
{
if (selector < 120) {
snprintf(pin_name, MAX_PIN_NAME_LEN, "gpio%u", selector);
return pin_name;
} else {
return msm_pinctrl_pins[selector - 120];
}
}
static unsigned int qcs404_get_function_mux(__maybe_unused unsigned int pin,
unsigned int selector)
{
return msm_pinctrl_functions[selector].val;
}
static const struct msm_pinctrl_data qcs404_data = {
.pin_data = {
.pin_count = 126,
.pin_offsets = qcs404_pin_offsets,
.special_pins_start = 120,
},
.functions_count = ARRAY_SIZE(msm_pinctrl_functions),
.get_function_name = qcs404_get_function_name,
.get_function_mux = qcs404_get_function_mux,
.get_pin_name = qcs404_get_pin_name,
};
static const struct udevice_id msm_pinctrl_ids[] = {
{ .compatible = "qcom,qcs404-pinctrl", .data = (ulong)&qcs404_data },
{ /* Sentinal */ }
};
U_BOOT_DRIVER(pinctrl_qcs404) = {
.name = "pinctrl_qcs404",
.id = UCLASS_NOP,
.of_match = msm_pinctrl_ids,
.ops = &msm_pinctrl_ops,
.bind = msm_pinctrl_bind,
};
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