mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-09-08 22:03:22 +09:00
d024236e5a
We have a large number of places where while we historically referenced gd in the code we no longer do, as well as cases where the code added that line "just in case" during development and never dropped it. Signed-off-by: Tom Rini <trini@konsulko.com>
673 lines
14 KiB
C
673 lines
14 KiB
C
/*
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* Pinctrl driver for Rockchip 3036 SoCs
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* (C) Copyright 2015 Rockchip Electronics Co., Ltd
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#include <common.h>
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#include <dm.h>
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#include <errno.h>
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#include <syscon.h>
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#include <asm/io.h>
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#include <asm/arch/clock.h>
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#include <asm/arch/grf_rk3036.h>
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#include <asm/arch/hardware.h>
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#include <asm/arch/periph.h>
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#include <dm/pinctrl.h>
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/* GRF_GPIO0A_IOMUX */
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enum {
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GPIO0A3_SHIFT = 6,
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GPIO0A3_MASK = 1 << GPIO0A3_SHIFT,
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GPIO0A3_GPIO = 0,
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GPIO0A3_I2C1_SDA,
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GPIO0A2_SHIFT = 4,
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GPIO0A2_MASK = 1 << GPIO0A2_SHIFT,
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GPIO0A2_GPIO = 0,
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GPIO0A2_I2C1_SCL,
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GPIO0A1_SHIFT = 2,
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GPIO0A1_MASK = 3 << GPIO0A1_SHIFT,
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GPIO0A1_GPIO = 0,
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GPIO0A1_I2C0_SDA,
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GPIO0A1_PWM2,
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GPIO0A0_SHIFT = 0,
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GPIO0A0_MASK = 3 << GPIO0A0_SHIFT,
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GPIO0A0_GPIO = 0,
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GPIO0A0_I2C0_SCL,
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GPIO0A0_PWM1,
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};
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/* GRF_GPIO0B_IOMUX */
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enum {
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GPIO0B6_SHIFT = 12,
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GPIO0B6_MASK = 3 << GPIO0B6_SHIFT,
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GPIO0B6_GPIO = 0,
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GPIO0B6_MMC1_D3,
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GPIO0B6_I2S1_SCLK,
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GPIO0B5_SHIFT = 10,
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GPIO0B5_MASK = 3 << GPIO0B5_SHIFT,
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GPIO0B5_GPIO = 0,
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GPIO0B5_MMC1_D2,
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GPIO0B5_I2S1_SDI,
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GPIO0B4_SHIFT = 8,
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GPIO0B4_MASK = 3 << GPIO0B4_SHIFT,
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GPIO0B4_GPIO = 0,
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GPIO0B4_MMC1_D1,
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GPIO0B4_I2S1_LRCKTX,
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GPIO0B3_SHIFT = 6,
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GPIO0B3_MASK = 3 << GPIO0B3_SHIFT,
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GPIO0B3_GPIO = 0,
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GPIO0B3_MMC1_D0,
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GPIO0B3_I2S1_LRCKRX,
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GPIO0B1_SHIFT = 2,
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GPIO0B1_MASK = 3 << GPIO0B1_SHIFT,
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GPIO0B1_GPIO = 0,
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GPIO0B1_MMC1_CLKOUT,
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GPIO0B1_I2S1_MCLK,
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GPIO0B0_SHIFT = 0,
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GPIO0B0_MASK = 3,
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GPIO0B0_GPIO = 0,
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GPIO0B0_MMC1_CMD,
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GPIO0B0_I2S1_SDO,
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};
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/* GRF_GPIO0C_IOMUX */
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enum {
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GPIO0C4_SHIFT = 8,
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GPIO0C4_MASK = 1 << GPIO0C4_SHIFT,
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GPIO0C4_GPIO = 0,
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GPIO0C4_DRIVE_VBUS,
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GPIO0C3_SHIFT = 6,
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GPIO0C3_MASK = 1 << GPIO0C3_SHIFT,
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GPIO0C3_GPIO = 0,
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GPIO0C3_UART0_CTSN,
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GPIO0C2_SHIFT = 4,
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GPIO0C2_MASK = 1 << GPIO0C2_SHIFT,
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GPIO0C2_GPIO = 0,
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GPIO0C2_UART0_RTSN,
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GPIO0C1_SHIFT = 2,
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GPIO0C1_MASK = 1 << GPIO0C1_SHIFT,
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GPIO0C1_GPIO = 0,
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GPIO0C1_UART0_SIN,
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GPIO0C0_SHIFT = 0,
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GPIO0C0_MASK = 1 << GPIO0C0_SHIFT,
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GPIO0C0_GPIO = 0,
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GPIO0C0_UART0_SOUT,
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};
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/* GRF_GPIO0D_IOMUX */
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enum {
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GPIO0D4_SHIFT = 8,
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GPIO0D4_MASK = 1 << GPIO0D4_SHIFT,
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GPIO0D4_GPIO = 0,
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GPIO0D4_SPDIF,
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GPIO0D3_SHIFT = 6,
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GPIO0D3_MASK = 1 << GPIO0D3_SHIFT,
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GPIO0D3_GPIO = 0,
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GPIO0D3_PWM3,
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GPIO0D2_SHIFT = 4,
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GPIO0D2_MASK = 1 << GPIO0D2_SHIFT,
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GPIO0D2_GPIO = 0,
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GPIO0D2_PWM0,
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};
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/* GRF_GPIO1A_IOMUX */
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enum {
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GPIO1A5_SHIFT = 10,
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GPIO1A5_MASK = 1 << GPIO1A5_SHIFT,
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GPIO1A5_GPIO = 0,
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GPIO1A5_I2S_SDI,
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GPIO1A4_SHIFT = 8,
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GPIO1A4_MASK = 1 << GPIO1A4_SHIFT,
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GPIO1A4_GPIO = 0,
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GPIO1A4_I2S_SD0,
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GPIO1A3_SHIFT = 6,
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GPIO1A3_MASK = 1 << GPIO1A3_SHIFT,
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GPIO1A3_GPIO = 0,
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GPIO1A3_I2S_LRCKTX,
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GPIO1A2_SHIFT = 4,
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GPIO1A2_MASK = 3 << GPIO1A2_SHIFT,
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GPIO1A2_GPIO = 0,
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GPIO1A2_I2S_LRCKRX,
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GPIO1A2_PWM1_0,
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GPIO1A1_SHIFT = 2,
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GPIO1A1_MASK = 1 << GPIO1A1_SHIFT,
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GPIO1A1_GPIO = 0,
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GPIO1A1_I2S_SCLK,
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GPIO1A0_SHIFT = 0,
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GPIO1A0_MASK = 1 << GPIO1A0_SHIFT,
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GPIO1A0_GPIO = 0,
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GPIO1A0_I2S_MCLK,
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};
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/* GRF_GPIO1B_IOMUX */
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enum {
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GPIO1B7_SHIFT = 14,
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GPIO1B7_MASK = 1 << GPIO1B7_SHIFT,
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GPIO1B7_GPIO = 0,
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GPIO1B7_MMC0_CMD,
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GPIO1B3_SHIFT = 6,
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GPIO1B3_MASK = 1 << GPIO1B3_SHIFT,
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GPIO1B3_GPIO = 0,
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GPIO1B3_HDMI_HPD,
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GPIO1B2_SHIFT = 4,
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GPIO1B2_MASK = 1 << GPIO1B2_SHIFT,
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GPIO1B2_GPIO = 0,
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GPIO1B2_HDMI_SCL,
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GPIO1B1_SHIFT = 2,
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GPIO1B1_MASK = 1 << GPIO1B1_SHIFT,
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GPIO1B1_GPIO = 0,
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GPIO1B1_HDMI_SDA,
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GPIO1B0_SHIFT = 0,
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GPIO1B0_MASK = 1 << GPIO1B0_SHIFT,
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GPIO1B0_GPIO = 0,
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GPIO1B0_HDMI_CEC,
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};
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/* GRF_GPIO1C_IOMUX */
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enum {
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GPIO1C5_SHIFT = 10,
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GPIO1C5_MASK = 3 << GPIO1C5_SHIFT,
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GPIO1C5_GPIO = 0,
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GPIO1C5_MMC0_D3,
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GPIO1C5_JTAG_TMS,
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GPIO1C4_SHIFT = 8,
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GPIO1C4_MASK = 3 << GPIO1C4_SHIFT,
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GPIO1C4_GPIO = 0,
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GPIO1C4_MMC0_D2,
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GPIO1C4_JTAG_TCK,
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GPIO1C3_SHIFT = 6,
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GPIO1C3_MASK = 3 << GPIO1C3_SHIFT,
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GPIO1C3_GPIO = 0,
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GPIO1C3_MMC0_D1,
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GPIO1C3_UART2_SOUT,
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GPIO1C2_SHIFT = 4,
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GPIO1C2_MASK = 3 << GPIO1C2_SHIFT ,
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GPIO1C2_GPIO = 0,
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GPIO1C2_MMC0_D0,
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GPIO1C2_UART2_SIN,
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GPIO1C1_SHIFT = 2,
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GPIO1C1_MASK = 1 << GPIO1C1_SHIFT,
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GPIO1C1_GPIO = 0,
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GPIO1C1_MMC0_DETN,
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GPIO1C0_SHIFT = 0,
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GPIO1C0_MASK = 1 << GPIO1C0_SHIFT,
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GPIO1C0_GPIO = 0,
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GPIO1C0_MMC0_CLKOUT,
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};
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/* GRF_GPIO1D_IOMUX */
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enum {
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GPIO1D7_SHIFT = 14,
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GPIO1D7_MASK = 3 << GPIO1D7_SHIFT,
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GPIO1D7_GPIO = 0,
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GPIO1D7_NAND_D7,
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GPIO1D7_EMMC_D7,
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GPIO1D7_SPI_CSN1,
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GPIO1D6_SHIFT = 12,
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GPIO1D6_MASK = 3 << GPIO1D6_SHIFT,
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GPIO1D6_GPIO = 0,
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GPIO1D6_NAND_D6,
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GPIO1D6_EMMC_D6,
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GPIO1D6_SPI_CSN0,
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GPIO1D5_SHIFT = 10,
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GPIO1D5_MASK = 3 << GPIO1D5_SHIFT,
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GPIO1D5_GPIO = 0,
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GPIO1D5_NAND_D5,
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GPIO1D5_EMMC_D5,
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GPIO1D5_SPI_TXD,
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GPIO1D4_SHIFT = 8,
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GPIO1D4_MASK = 3 << GPIO1D4_SHIFT,
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GPIO1D4_GPIO = 0,
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GPIO1D4_NAND_D4,
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GPIO1D4_EMMC_D4,
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GPIO1D4_SPI_RXD,
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GPIO1D3_SHIFT = 6,
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GPIO1D3_MASK = 3 << GPIO1D3_SHIFT,
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GPIO1D3_GPIO = 0,
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GPIO1D3_NAND_D3,
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GPIO1D3_EMMC_D3,
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GPIO1D3_SFC_SIO3,
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GPIO1D2_SHIFT = 4,
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GPIO1D2_MASK = 3 << GPIO1D2_SHIFT,
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GPIO1D2_GPIO = 0,
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GPIO1D2_NAND_D2,
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GPIO1D2_EMMC_D2,
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GPIO1D2_SFC_SIO2,
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GPIO1D1_SHIFT = 2,
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GPIO1D1_MASK = 3 << GPIO1D1_SHIFT,
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GPIO1D1_GPIO = 0,
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GPIO1D1_NAND_D1,
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GPIO1D1_EMMC_D1,
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GPIO1D1_SFC_SIO1,
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GPIO1D0_SHIFT = 0,
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GPIO1D0_MASK = 3 << GPIO1D0_SHIFT,
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GPIO1D0_GPIO = 0,
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GPIO1D0_NAND_D0,
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GPIO1D0_EMMC_D0,
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GPIO1D0_SFC_SIO0,
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};
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/* GRF_GPIO2A_IOMUX */
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enum {
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GPIO2A7_SHIFT = 14,
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GPIO2A7_MASK = 1 << GPIO2A7_SHIFT,
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GPIO2A7_GPIO = 0,
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GPIO2A7_TESTCLK_OUT,
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GPIO2A6_SHIFT = 12,
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GPIO2A6_MASK = 1 << GPIO2A6_SHIFT,
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GPIO2A6_GPIO = 0,
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GPIO2A6_NAND_CS0,
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GPIO2A4_SHIFT = 8,
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GPIO2A4_MASK = 3 << GPIO2A4_SHIFT,
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GPIO2A4_GPIO = 0,
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GPIO2A4_NAND_RDY,
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GPIO2A4_EMMC_CMD,
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GPIO2A3_SFC_CLK,
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GPIO2A3_SHIFT = 6,
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GPIO2A3_MASK = 3 << GPIO2A3_SHIFT,
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GPIO2A3_GPIO = 0,
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GPIO2A3_NAND_RDN,
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GPIO2A4_SFC_CSN1,
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GPIO2A2_SHIFT = 4,
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GPIO2A2_MASK = 3 << GPIO2A2_SHIFT,
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GPIO2A2_GPIO = 0,
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GPIO2A2_NAND_WRN,
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GPIO2A4_SFC_CSN0,
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GPIO2A1_SHIFT = 2,
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GPIO2A1_MASK = 3 << GPIO2A1_SHIFT,
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GPIO2A1_GPIO = 0,
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GPIO2A1_NAND_CLE,
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GPIO2A1_EMMC_CLKOUT,
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GPIO2A0_SHIFT = 0,
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GPIO2A0_MASK = 3 << GPIO2A0_SHIFT,
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GPIO2A0_GPIO = 0,
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GPIO2A0_NAND_ALE,
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GPIO2A0_SPI_CLK,
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};
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/* GRF_GPIO2B_IOMUX */
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enum {
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GPIO2B7_SHIFT = 14,
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GPIO2B7_MASK = 1 << GPIO2B7_SHIFT,
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GPIO2B7_GPIO = 0,
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GPIO2B7_MAC_RXER,
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GPIO2B6_SHIFT = 12,
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GPIO2B6_MASK = 3 << GPIO2B6_SHIFT,
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GPIO2B6_GPIO = 0,
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GPIO2B6_MAC_CLKOUT,
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GPIO2B6_MAC_CLKIN,
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GPIO2B5_SHIFT = 10,
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GPIO2B5_MASK = 1 << GPIO2B5_SHIFT,
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GPIO2B5_GPIO = 0,
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GPIO2B5_MAC_TXEN,
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GPIO2B4_SHIFT = 8,
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GPIO2B4_MASK = 1 << GPIO2B4_SHIFT,
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GPIO2B4_GPIO = 0,
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GPIO2B4_MAC_MDIO,
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GPIO2B2_SHIFT = 4,
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GPIO2B2_MASK = 1 << GPIO2B2_SHIFT,
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GPIO2B2_GPIO = 0,
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GPIO2B2_MAC_CRS,
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};
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/* GRF_GPIO2C_IOMUX */
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enum {
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GPIO2C7_SHIFT = 14,
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GPIO2C7_MASK = 3 << GPIO2C7_SHIFT,
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GPIO2C7_GPIO = 0,
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GPIO2C7_UART1_SOUT,
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GPIO2C7_TESTCLK_OUT1,
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GPIO2C6_SHIFT = 12,
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GPIO2C6_MASK = 1 << GPIO2C6_SHIFT,
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GPIO2C6_GPIO = 0,
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GPIO2C6_UART1_SIN,
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GPIO2C5_SHIFT = 10,
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GPIO2C5_MASK = 1 << GPIO2C5_SHIFT,
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GPIO2C5_GPIO = 0,
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GPIO2C5_I2C2_SCL,
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GPIO2C4_SHIFT = 8,
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GPIO2C4_MASK = 1 << GPIO2C4_SHIFT,
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GPIO2C4_GPIO = 0,
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GPIO2C4_I2C2_SDA,
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GPIO2C3_SHIFT = 6,
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GPIO2C3_MASK = 1 << GPIO2C3_SHIFT,
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GPIO2C3_GPIO = 0,
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GPIO2C3_MAC_TXD0,
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GPIO2C2_SHIFT = 4,
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GPIO2C2_MASK = 1 << GPIO2C2_SHIFT,
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GPIO2C2_GPIO = 0,
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GPIO2C2_MAC_TXD1,
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GPIO2C1_SHIFT = 2,
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GPIO2C1_MASK = 1 << GPIO2C1_SHIFT,
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GPIO2C1_GPIO = 0,
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GPIO2C1_MAC_RXD0,
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GPIO2C0_SHIFT = 0,
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GPIO2C0_MASK = 1 << GPIO2C0_SHIFT,
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GPIO2C0_GPIO = 0,
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GPIO2C0_MAC_RXD1,
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};
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/* GRF_GPIO2D_IOMUX */
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enum {
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GPIO2D6_SHIFT = 12,
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GPIO2D6_MASK = 1 << GPIO2D6_SHIFT,
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GPIO2D6_GPIO = 0,
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GPIO2D6_I2S_SDO1,
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GPIO2D5_SHIFT = 10,
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GPIO2D5_MASK = 1 << GPIO2D5_SHIFT,
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GPIO2D5_GPIO = 0,
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GPIO2D5_I2S_SDO2,
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GPIO2D4_SHIFT = 8,
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GPIO2D4_MASK = 1 << GPIO2D4_SHIFT,
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GPIO2D4_GPIO = 0,
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GPIO2D4_I2S_SDO3,
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GPIO2D1_SHIFT = 2,
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GPIO2D1_MASK = 1 << GPIO2D1_SHIFT,
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GPIO2D1_GPIO = 0,
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GPIO2D1_MAC_MDC,
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};
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struct rk3036_pinctrl_priv {
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struct rk3036_grf *grf;
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};
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static void pinctrl_rk3036_pwm_config(struct rk3036_grf *grf, int pwm_id)
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{
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switch (pwm_id) {
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case PERIPH_ID_PWM0:
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rk_clrsetreg(&grf->gpio0d_iomux, GPIO0D2_MASK,
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GPIO0D2_PWM0 << GPIO0D2_SHIFT);
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break;
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case PERIPH_ID_PWM1:
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rk_clrsetreg(&grf->gpio0a_iomux, GPIO0A0_MASK,
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GPIO0A0_PWM1 << GPIO0A0_SHIFT);
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break;
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case PERIPH_ID_PWM2:
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rk_clrsetreg(&grf->gpio0a_iomux, GPIO0A1_MASK,
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GPIO0A1_PWM2 << GPIO0A1_SHIFT);
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break;
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case PERIPH_ID_PWM3:
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rk_clrsetreg(&grf->gpio0a_iomux, GPIO0D3_MASK,
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GPIO0D3_PWM3 << GPIO0D3_SHIFT);
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break;
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default:
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debug("pwm id = %d iomux error!\n", pwm_id);
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break;
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}
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}
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static void pinctrl_rk3036_i2c_config(struct rk3036_grf *grf, int i2c_id)
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{
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switch (i2c_id) {
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case PERIPH_ID_I2C0:
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rk_clrsetreg(&grf->gpio0a_iomux,
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GPIO0A1_MASK | GPIO0A0_MASK,
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GPIO0A1_I2C0_SDA << GPIO0A1_SHIFT |
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GPIO0A0_I2C0_SCL << GPIO0A0_SHIFT);
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break;
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case PERIPH_ID_I2C1:
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rk_clrsetreg(&grf->gpio0a_iomux,
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GPIO0A3_MASK | GPIO0A2_MASK,
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GPIO0A3_I2C1_SDA << GPIO0A3_SHIFT |
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GPIO0A2_I2C1_SCL << GPIO0A2_SHIFT);
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break;
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case PERIPH_ID_I2C2:
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rk_clrsetreg(&grf->gpio2c_iomux,
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GPIO2C5_MASK | GPIO2C4_MASK,
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GPIO2C5_I2C2_SCL << GPIO2C5_SHIFT |
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GPIO2C4_I2C2_SDA << GPIO2C4_SHIFT);
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|
|
break;
|
|
}
|
|
}
|
|
|
|
static void pinctrl_rk3036_spi_config(struct rk3036_grf *grf, int cs)
|
|
{
|
|
switch (cs) {
|
|
case 0:
|
|
rk_clrsetreg(&grf->gpio1d_iomux, GPIO1D6_MASK,
|
|
GPIO1D6_SPI_CSN0 << GPIO1D6_SHIFT);
|
|
break;
|
|
case 1:
|
|
rk_clrsetreg(&grf->gpio1d_iomux, GPIO1D7_MASK,
|
|
GPIO1D7_SPI_CSN1 << GPIO1D7_SHIFT);
|
|
break;
|
|
}
|
|
rk_clrsetreg(&grf->gpio1d_iomux,
|
|
GPIO1D5_MASK | GPIO1D4_MASK,
|
|
GPIO1D5_SPI_TXD << GPIO1D5_SHIFT |
|
|
GPIO1D4_SPI_RXD << GPIO1D4_SHIFT);
|
|
|
|
rk_clrsetreg(&grf->gpio2a_iomux, GPIO2A0_MASK,
|
|
GPIO2A0_SPI_CLK << GPIO2A0_SHIFT);
|
|
}
|
|
|
|
static void pinctrl_rk3036_uart_config(struct rk3036_grf *grf, int uart_id)
|
|
{
|
|
switch (uart_id) {
|
|
case PERIPH_ID_UART0:
|
|
rk_clrsetreg(&grf->gpio0c_iomux,
|
|
GPIO0C3_MASK | GPIO0C2_MASK |
|
|
GPIO0C1_MASK | GPIO0C0_MASK,
|
|
GPIO0C3_UART0_CTSN << GPIO0C3_SHIFT |
|
|
GPIO0C2_UART0_RTSN << GPIO0C2_SHIFT |
|
|
GPIO0C1_UART0_SIN << GPIO0C1_SHIFT |
|
|
GPIO0C0_UART0_SOUT << GPIO0C0_SHIFT);
|
|
break;
|
|
case PERIPH_ID_UART1:
|
|
rk_clrsetreg(&grf->gpio2c_iomux,
|
|
GPIO2C7_MASK | GPIO2C6_MASK,
|
|
GPIO2C7_UART1_SOUT << GPIO2C7_SHIFT |
|
|
GPIO2C6_UART1_SIN << GPIO2C6_SHIFT);
|
|
break;
|
|
case PERIPH_ID_UART2:
|
|
rk_clrsetreg(&grf->gpio1c_iomux,
|
|
GPIO1C3_MASK | GPIO1C2_MASK,
|
|
GPIO1C3_UART2_SOUT << GPIO1C3_SHIFT |
|
|
GPIO1C2_UART2_SIN << GPIO1C2_SHIFT);
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void pinctrl_rk3036_sdmmc_config(struct rk3036_grf *grf, int mmc_id)
|
|
{
|
|
switch (mmc_id) {
|
|
case PERIPH_ID_EMMC:
|
|
rk_clrsetreg(&grf->gpio1d_iomux, 0xffff,
|
|
GPIO1D7_EMMC_D7 << GPIO1D7_SHIFT |
|
|
GPIO1D6_EMMC_D6 << GPIO1D6_SHIFT |
|
|
GPIO1D5_EMMC_D5 << GPIO1D5_SHIFT |
|
|
GPIO1D4_EMMC_D4 << GPIO1D4_SHIFT |
|
|
GPIO1D3_EMMC_D3 << GPIO1D3_SHIFT |
|
|
GPIO1D2_EMMC_D2 << GPIO1D2_SHIFT |
|
|
GPIO1D1_EMMC_D1 << GPIO1D1_SHIFT |
|
|
GPIO1D0_EMMC_D0 << GPIO1D0_SHIFT);
|
|
rk_clrsetreg(&grf->gpio2a_iomux,
|
|
GPIO2A4_MASK | GPIO2A1_MASK,
|
|
GPIO2A4_EMMC_CMD << GPIO2A4_SHIFT |
|
|
GPIO2A1_EMMC_CLKOUT << GPIO2A1_SHIFT);
|
|
break;
|
|
case PERIPH_ID_SDCARD:
|
|
rk_clrsetreg(&grf->gpio1c_iomux, 0xffff,
|
|
GPIO1C5_MMC0_D3 << GPIO1C5_SHIFT |
|
|
GPIO1C4_MMC0_D2 << GPIO1C4_SHIFT |
|
|
GPIO1C3_MMC0_D1 << GPIO1C3_SHIFT |
|
|
GPIO1C2_MMC0_D0 << GPIO1C2_SHIFT |
|
|
GPIO1C1_MMC0_DETN << GPIO1C1_SHIFT |
|
|
GPIO1C0_MMC0_CLKOUT << GPIO1C0_SHIFT);
|
|
break;
|
|
}
|
|
}
|
|
|
|
static int rk3036_pinctrl_request(struct udevice *dev, int func, int flags)
|
|
{
|
|
struct rk3036_pinctrl_priv *priv = dev_get_priv(dev);
|
|
|
|
debug("%s: func=%x, flags=%x\n", __func__, func, flags);
|
|
switch (func) {
|
|
case PERIPH_ID_PWM0:
|
|
case PERIPH_ID_PWM1:
|
|
case PERIPH_ID_PWM2:
|
|
case PERIPH_ID_PWM3:
|
|
pinctrl_rk3036_pwm_config(priv->grf, func);
|
|
break;
|
|
case PERIPH_ID_I2C0:
|
|
case PERIPH_ID_I2C1:
|
|
case PERIPH_ID_I2C2:
|
|
pinctrl_rk3036_i2c_config(priv->grf, func);
|
|
break;
|
|
case PERIPH_ID_SPI0:
|
|
pinctrl_rk3036_spi_config(priv->grf, flags);
|
|
break;
|
|
case PERIPH_ID_UART0:
|
|
case PERIPH_ID_UART1:
|
|
case PERIPH_ID_UART2:
|
|
pinctrl_rk3036_uart_config(priv->grf, func);
|
|
break;
|
|
case PERIPH_ID_SDMMC0:
|
|
case PERIPH_ID_SDMMC1:
|
|
pinctrl_rk3036_sdmmc_config(priv->grf, func);
|
|
break;
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int rk3036_pinctrl_get_periph_id(struct udevice *dev,
|
|
struct udevice *periph)
|
|
{
|
|
u32 cell[3];
|
|
int ret;
|
|
|
|
ret = dev_read_u32_array(periph, "interrupts", cell, ARRAY_SIZE(cell));
|
|
if (ret < 0)
|
|
return -EINVAL;
|
|
|
|
switch (cell[1]) {
|
|
case 14:
|
|
return PERIPH_ID_SDCARD;
|
|
case 16:
|
|
return PERIPH_ID_EMMC;
|
|
case 20:
|
|
return PERIPH_ID_UART0;
|
|
case 21:
|
|
return PERIPH_ID_UART1;
|
|
case 22:
|
|
return PERIPH_ID_UART2;
|
|
case 23:
|
|
return PERIPH_ID_SPI0;
|
|
case 24:
|
|
return PERIPH_ID_I2C0;
|
|
case 25:
|
|
return PERIPH_ID_I2C1;
|
|
case 26:
|
|
return PERIPH_ID_I2C2;
|
|
case 30:
|
|
return PERIPH_ID_PWM0;
|
|
}
|
|
return -ENOENT;
|
|
}
|
|
|
|
static int rk3036_pinctrl_set_state_simple(struct udevice *dev,
|
|
struct udevice *periph)
|
|
{
|
|
int func;
|
|
|
|
func = rk3036_pinctrl_get_periph_id(dev, periph);
|
|
if (func < 0)
|
|
return func;
|
|
return rk3036_pinctrl_request(dev, func, 0);
|
|
}
|
|
|
|
static struct pinctrl_ops rk3036_pinctrl_ops = {
|
|
.set_state_simple = rk3036_pinctrl_set_state_simple,
|
|
.request = rk3036_pinctrl_request,
|
|
.get_periph_id = rk3036_pinctrl_get_periph_id,
|
|
};
|
|
|
|
static int rk3036_pinctrl_probe(struct udevice *dev)
|
|
{
|
|
struct rk3036_pinctrl_priv *priv = dev_get_priv(dev);
|
|
|
|
priv->grf = syscon_get_first_range(ROCKCHIP_SYSCON_GRF);
|
|
debug("%s: grf=%p\n", __func__, priv->grf);
|
|
return 0;
|
|
}
|
|
|
|
static const struct udevice_id rk3036_pinctrl_ids[] = {
|
|
{ .compatible = "rockchip,rk3036-pinctrl" },
|
|
{ }
|
|
};
|
|
|
|
U_BOOT_DRIVER(pinctrl_rk3036) = {
|
|
.name = "pinctrl_rk3036",
|
|
.id = UCLASS_PINCTRL,
|
|
.of_match = rk3036_pinctrl_ids,
|
|
.priv_auto_alloc_size = sizeof(struct rk3036_pinctrl_priv),
|
|
.ops = &rk3036_pinctrl_ops,
|
|
.bind = dm_scan_fdt_dev,
|
|
.probe = rk3036_pinctrl_probe,
|
|
};
|