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/*
* Driver for the U300 pin controller
*
* Based on the original U300 padmux functions
* Copyright (C) 2009-2011 ST-Ericsson AB
* Author: Martin Persson <martin.persson@stericsson.com>
* Author: Linus Walleij <linus.walleij@linaro.org>
*
* The DB3350 design and control registers are oriented around pads rather than
* pins, so we enumerate the pads we can mux rather than actual pins. The pads
* are connected to different pins in different packaging types, so it would
* be confusing.
*/
#include <linux/init.h>
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/io.h>
#include <linux/slab.h>
#include <linux/err.h>
#include <linux/pinctrl/pinctrl.h>
#include <linux/pinctrl/pinmux.h>
/*
* Register definitions for the U300 Padmux control registers in the
* system controller
*/
/* PAD MUX Control register 1 (LOW) 16bit (R/W) */
#define U300_SYSCON_PMC1LR 0x007C
#define U300_SYSCON_PMC1LR_MASK 0xFFFF
#define U300_SYSCON_PMC1LR_CDI_MASK 0xC000
#define U300_SYSCON_PMC1LR_CDI_CDI 0x0000
#define U300_SYSCON_PMC1LR_CDI_EMIF 0x4000
/* For BS335 */
#define U300_SYSCON_PMC1LR_CDI_CDI2 0x8000
#define U300_SYSCON_PMC1LR_CDI_WCDMA_APP_GPIO 0xC000
/* For BS365 */
#define U300_SYSCON_PMC1LR_CDI_GPIO 0x8000
#define U300_SYSCON_PMC1LR_CDI_WCDMA 0xC000
/* Common defs */
#define U300_SYSCON_PMC1LR_PDI_MASK 0x3000
#define U300_SYSCON_PMC1LR_PDI_PDI 0x0000
#define U300_SYSCON_PMC1LR_PDI_EGG 0x1000
#define U300_SYSCON_PMC1LR_PDI_WCDMA 0x3000
#define U300_SYSCON_PMC1LR_MMCSD_MASK 0x0C00
#define U300_SYSCON_PMC1LR_MMCSD_MMCSD 0x0000
#define U300_SYSCON_PMC1LR_MMCSD_MSPRO 0x0400
#define U300_SYSCON_PMC1LR_MMCSD_DSP 0x0800
#define U300_SYSCON_PMC1LR_MMCSD_WCDMA 0x0C00
#define U300_SYSCON_PMC1LR_ETM_MASK 0x0300
#define U300_SYSCON_PMC1LR_ETM_ACC 0x0000
#define U300_SYSCON_PMC1LR_ETM_APP 0x0100
#define U300_SYSCON_PMC1LR_EMIF_1_CS2_MASK 0x00C0
#define U300_SYSCON_PMC1LR_EMIF_1_CS2_STATIC 0x0000
#define U300_SYSCON_PMC1LR_EMIF_1_CS2_NFIF 0x0040
#define U300_SYSCON_PMC1LR_EMIF_1_CS2_SDRAM 0x0080
#define U300_SYSCON_PMC1LR_EMIF_1_CS2_STATIC_2GB 0x00C0
#define U300_SYSCON_PMC1LR_EMIF_1_CS1_MASK 0x0030
#define U300_SYSCON_PMC1LR_EMIF_1_CS1_STATIC 0x0000
#define U300_SYSCON_PMC1LR_EMIF_1_CS1_NFIF 0x0010
#define U300_SYSCON_PMC1LR_EMIF_1_CS1_SDRAM 0x0020
#define U300_SYSCON_PMC1LR_EMIF_1_CS1_SEMI 0x0030
#define U300_SYSCON_PMC1LR_EMIF_1_CS0_MASK 0x000C
#define U300_SYSCON_PMC1LR_EMIF_1_CS0_STATIC 0x0000
#define U300_SYSCON_PMC1LR_EMIF_1_CS0_NFIF 0x0004
#define U300_SYSCON_PMC1LR_EMIF_1_CS0_SDRAM 0x0008
#define U300_SYSCON_PMC1LR_EMIF_1_CS0_SEMI 0x000C
#define U300_SYSCON_PMC1LR_EMIF_1_MASK 0x0003
#define U300_SYSCON_PMC1LR_EMIF_1_STATIC 0x0000
#define U300_SYSCON_PMC1LR_EMIF_1_SDRAM0 0x0001
#define U300_SYSCON_PMC1LR_EMIF_1_SDRAM1 0x0002
#define U300_SYSCON_PMC1LR_EMIF_1 0x0003
/* PAD MUX Control register 2 (HIGH) 16bit (R/W) */
#define U300_SYSCON_PMC1HR 0x007E
#define U300_SYSCON_PMC1HR_MASK 0xFFFF
#define U300_SYSCON_PMC1HR_MISC_2_MASK 0xC000
#define U300_SYSCON_PMC1HR_MISC_2_APP_GPIO 0x0000
#define U300_SYSCON_PMC1HR_MISC_2_MSPRO 0x4000
#define U300_SYSCON_PMC1HR_MISC_2_DSP 0x8000
#define U300_SYSCON_PMC1HR_MISC_2_AAIF 0xC000
#define U300_SYSCON_PMC1HR_APP_GPIO_2_MASK 0x3000
#define U300_SYSCON_PMC1HR_APP_GPIO_2_APP_GPIO 0x0000
#define U300_SYSCON_PMC1HR_APP_GPIO_2_NFIF 0x1000
#define U300_SYSCON_PMC1HR_APP_GPIO_2_DSP 0x2000
#define U300_SYSCON_PMC1HR_APP_GPIO_2_AAIF 0x3000
#define U300_SYSCON_PMC1HR_APP_GPIO_1_MASK 0x0C00
#define U300_SYSCON_PMC1HR_APP_GPIO_1_APP_GPIO 0x0000
#define U300_SYSCON_PMC1HR_APP_GPIO_1_MMC 0x0400
#define U300_SYSCON_PMC1HR_APP_GPIO_1_DSP 0x0800
#define U300_SYSCON_PMC1HR_APP_GPIO_1_AAIF 0x0C00
#define U300_SYSCON_PMC1HR_APP_SPI_CS_2_MASK 0x0300
#define U300_SYSCON_PMC1HR_APP_SPI_CS_2_APP_GPIO 0x0000
#define U300_SYSCON_PMC1HR_APP_SPI_CS_2_SPI 0x0100
#define U300_SYSCON_PMC1HR_APP_SPI_CS_2_AAIF 0x0300
#define U300_SYSCON_PMC1HR_APP_SPI_CS_1_MASK 0x00C0
#define U300_SYSCON_PMC1HR_APP_SPI_CS_1_APP_GPIO 0x0000
#define U300_SYSCON_PMC1HR_APP_SPI_CS_1_SPI 0x0040
#define U300_SYSCON_PMC1HR_APP_SPI_CS_1_AAIF 0x00C0
#define U300_SYSCON_PMC1HR_APP_SPI_2_MASK 0x0030
#define U300_SYSCON_PMC1HR_APP_SPI_2_APP_GPIO 0x0000
#define U300_SYSCON_PMC1HR_APP_SPI_2_SPI 0x0010
#define U300_SYSCON_PMC1HR_APP_SPI_2_DSP 0x0020
#define U300_SYSCON_PMC1HR_APP_SPI_2_AAIF 0x0030
#define U300_SYSCON_PMC1HR_APP_UART0_2_MASK 0x000C
#define U300_SYSCON_PMC1HR_APP_UART0_2_APP_GPIO 0x0000
#define U300_SYSCON_PMC1HR_APP_UART0_2_UART0 0x0004
#define U300_SYSCON_PMC1HR_APP_UART0_2_NFIF_CS 0x0008
#define U300_SYSCON_PMC1HR_APP_UART0_2_AAIF 0x000C
#define U300_SYSCON_PMC1HR_APP_UART0_1_MASK 0x0003
#define U300_SYSCON_PMC1HR_APP_UART0_1_APP_GPIO 0x0000
#define U300_SYSCON_PMC1HR_APP_UART0_1_UART0 0x0001
#define U300_SYSCON_PMC1HR_APP_UART0_1_AAIF 0x0003
/* Padmux 2 control */
#define U300_SYSCON_PMC2R 0x100
#define U300_SYSCON_PMC2R_APP_MISC_0_MASK 0x00C0
#define U300_SYSCON_PMC2R_APP_MISC_0_APP_GPIO 0x0000
#define U300_SYSCON_PMC2R_APP_MISC_0_EMIF_SDRAM 0x0040
#define U300_SYSCON_PMC2R_APP_MISC_0_MMC 0x0080
#define U300_SYSCON_PMC2R_APP_MISC_0_CDI2 0x00C0
#define U300_SYSCON_PMC2R_APP_MISC_1_MASK 0x0300
#define U300_SYSCON_PMC2R_APP_MISC_1_APP_GPIO 0x0000
#define U300_SYSCON_PMC2R_APP_MISC_1_EMIF_SDRAM 0x0100
#define U300_SYSCON_PMC2R_APP_MISC_1_MMC 0x0200
#define U300_SYSCON_PMC2R_APP_MISC_1_CDI2 0x0300
#define U300_SYSCON_PMC2R_APP_MISC_2_MASK 0x0C00
#define U300_SYSCON_PMC2R_APP_MISC_2_APP_GPIO 0x0000
#define U300_SYSCON_PMC2R_APP_MISC_2_EMIF_SDRAM 0x0400
#define U300_SYSCON_PMC2R_APP_MISC_2_MMC 0x0800
#define U300_SYSCON_PMC2R_APP_MISC_2_CDI2 0x0C00
#define U300_SYSCON_PMC2R_APP_MISC_3_MASK 0x3000
#define U300_SYSCON_PMC2R_APP_MISC_3_APP_GPIO 0x0000
#define U300_SYSCON_PMC2R_APP_MISC_3_EMIF_SDRAM 0x1000
#define U300_SYSCON_PMC2R_APP_MISC_3_MMC 0x2000
#define U300_SYSCON_PMC2R_APP_MISC_3_CDI2 0x3000
#define U300_SYSCON_PMC2R_APP_MISC_4_MASK 0xC000
#define U300_SYSCON_PMC2R_APP_MISC_4_APP_GPIO 0x0000
#define U300_SYSCON_PMC2R_APP_MISC_4_EMIF_SDRAM 0x4000
#define U300_SYSCON_PMC2R_APP_MISC_4_MMC 0x8000
#define U300_SYSCON_PMC2R_APP_MISC_4_ACC_GPIO 0xC000
/* TODO: More SYSCON registers missing */
#define U300_SYSCON_PMC3R 0x10C
#define U300_SYSCON_PMC3R_APP_MISC_11_MASK 0xC000
#define U300_SYSCON_PMC3R_APP_MISC_11_SPI 0x4000
#define U300_SYSCON_PMC3R_APP_MISC_10_MASK 0x3000
#define U300_SYSCON_PMC3R_APP_MISC_10_SPI 0x1000
/* TODO: Missing other configs */
#define U300_SYSCON_PMC4R 0x168
#define U300_SYSCON_PMC4R_APP_MISC_12_MASK 0x0003
#define U300_SYSCON_PMC4R_APP_MISC_12_APP_GPIO 0x0000
#define U300_SYSCON_PMC4R_APP_MISC_13_MASK 0x000C
#define U300_SYSCON_PMC4R_APP_MISC_13_CDI 0x0000
#define U300_SYSCON_PMC4R_APP_MISC_13_SMIA 0x0004
#define U300_SYSCON_PMC4R_APP_MISC_13_SMIA2 0x0008
#define U300_SYSCON_PMC4R_APP_MISC_13_APP_GPIO 0x000C
#define U300_SYSCON_PMC4R_APP_MISC_14_MASK 0x0030
#define U300_SYSCON_PMC4R_APP_MISC_14_CDI 0x0000
#define U300_SYSCON_PMC4R_APP_MISC_14_SMIA 0x0010
#define U300_SYSCON_PMC4R_APP_MISC_14_CDI2 0x0020
#define U300_SYSCON_PMC4R_APP_MISC_14_APP_GPIO 0x0030
#define U300_SYSCON_PMC4R_APP_MISC_16_MASK 0x0300
#define U300_SYSCON_PMC4R_APP_MISC_16_APP_GPIO_13 0x0000
#define U300_SYSCON_PMC4R_APP_MISC_16_APP_UART1_CTS 0x0100
#define U300_SYSCON_PMC4R_APP_MISC_16_EMIF_1_STATIC_CS5_N 0x0200
#define DRIVER_NAME "pinmux-u300"
/*
* The DB3350 has 467 pads, I have enumerated the pads clockwise around the
* edges of the silicon, finger by finger. LTCORNER upper left is pad 0.
* Data taken from the PadRing chart, arranged like this:
*
* 0 ..... 104
* 466 105
* . .
* . .
* 358 224
* 357 .... 225
*/
#define U300_NUM_PADS 467
/* Pad names for the pinmux subsystem */
static const struct pinctrl_pin_desc u300_pads[] = {
/* Pads along the top edge of the chip */
PINCTRL_PIN(0, "P PAD VDD 28"),
PINCTRL_PIN(1, "P PAD GND 28"),
PINCTRL_PIN(2, "PO SIM RST N"),
PINCTRL_PIN(3, "VSSIO 25"),
PINCTRL_PIN(4, "VSSA ADDA ESDSUB"),
PINCTRL_PIN(5, "PWR VSSCOMMON"),
PINCTRL_PIN(6, "PI ADC I1 POS"),
PINCTRL_PIN(7, "PI ADC I1 NEG"),
PINCTRL_PIN(8, "PWR VSSAD0"),
PINCTRL_PIN(9, "PWR VCCAD0"),
PINCTRL_PIN(10, "PI ADC Q1 NEG"),
PINCTRL_PIN(11, "PI ADC Q1 POS"),
PINCTRL_PIN(12, "PWR VDDAD"),
PINCTRL_PIN(13, "PWR GNDAD"),
PINCTRL_PIN(14, "PI ADC I2 POS"),
PINCTRL_PIN(15, "PI ADC I2 NEG"),
PINCTRL_PIN(16, "PWR VSSAD1"),
PINCTRL_PIN(17, "PWR VCCAD1"),
PINCTRL_PIN(18, "PI ADC Q2 NEG"),
PINCTRL_PIN(19, "PI ADC Q2 POS"),
PINCTRL_PIN(20, "VSSA ADDA ESDSUB"),
PINCTRL_PIN(21, "PWR VCCGPAD"),
PINCTRL_PIN(22, "PI TX POW"),
PINCTRL_PIN(23, "PWR VSSGPAD"),
PINCTRL_PIN(24, "PO DAC I POS"),
PINCTRL_PIN(25, "PO DAC I NEG"),
PINCTRL_PIN(26, "PO DAC Q POS"),
PINCTRL_PIN(27, "PO DAC Q NEG"),
PINCTRL_PIN(28, "PWR VSSDA"),
PINCTRL_PIN(29, "PWR VCCDA"),
PINCTRL_PIN(30, "VSSA ADDA ESDSUB"),
PINCTRL_PIN(31, "P PAD VDDIO 11"),
PINCTRL_PIN(32, "PI PLL 26 FILTVDD"),
PINCTRL_PIN(33, "PI PLL 26 VCONT"),
PINCTRL_PIN(34, "PWR AGNDPLL2V5 32 13"),
PINCTRL_PIN(35, "PWR AVDDPLL2V5 32 13"),
PINCTRL_PIN(36, "VDDA PLL ESD"),
PINCTRL_PIN(37, "VSSA PLL ESD"),
PINCTRL_PIN(38, "VSS PLL"),
PINCTRL_PIN(39, "VDDC PLL"),
PINCTRL_PIN(40, "PWR AGNDPLL2V5 26 60"),
PINCTRL_PIN(41, "PWR AVDDPLL2V5 26 60"),
PINCTRL_PIN(42, "PWR AVDDPLL2V5 26 208"),
PINCTRL_PIN(43, "PWR AGNDPLL2V5 26 208"),
PINCTRL_PIN(44, "PWR AVDDPLL2V5 13 208"),
PINCTRL_PIN(45, "PWR AGNDPLL2V5 13 208"),
PINCTRL_PIN(46, "P PAD VSSIO 11"),
PINCTRL_PIN(47, "P PAD VSSIO 12"),
PINCTRL_PIN(48, "PI POW RST N"),
PINCTRL_PIN(49, "VDDC IO"),
PINCTRL_PIN(50, "P PAD VDDIO 16"),
PINCTRL_PIN(51, "PO RF WCDMA EN 4"),
PINCTRL_PIN(52, "PO RF WCDMA EN 3"),
PINCTRL_PIN(53, "PO RF WCDMA EN 2"),
PINCTRL_PIN(54, "PO RF WCDMA EN 1"),
PINCTRL_PIN(55, "PO RF WCDMA EN 0"),
PINCTRL_PIN(56, "PO GSM PA ENABLE"),
PINCTRL_PIN(57, "PO RF DATA STRB"),
PINCTRL_PIN(58, "PO RF DATA2"),
PINCTRL_PIN(59, "PIO RF DATA1"),
PINCTRL_PIN(60, "PIO RF DATA0"),
PINCTRL_PIN(61, "P PAD VDD 11"),
PINCTRL_PIN(62, "P PAD GND 11"),
PINCTRL_PIN(63, "P PAD VSSIO 16"),
PINCTRL_PIN(64, "P PAD VDDIO 18"),
PINCTRL_PIN(65, "PO RF CTRL STRB2"),
PINCTRL_PIN(66, "PO RF CTRL STRB1"),
PINCTRL_PIN(67, "PO RF CTRL STRB0"),
PINCTRL_PIN(68, "PIO RF CTRL DATA"),
PINCTRL_PIN(69, "PO RF CTRL CLK"),
PINCTRL_PIN(70, "PO TX ADC STRB"),
PINCTRL_PIN(71, "PO ANT SW 2"),
PINCTRL_PIN(72, "PO ANT SW 3"),
PINCTRL_PIN(73, "PO ANT SW 0"),
PINCTRL_PIN(74, "PO ANT SW 1"),
PINCTRL_PIN(75, "PO M CLKRQ"),
PINCTRL_PIN(76, "PI M CLK"),
PINCTRL_PIN(77, "PI RTC CLK"),
PINCTRL_PIN(78, "P PAD VDD 8"),
PINCTRL_PIN(79, "P PAD GND 8"),
PINCTRL_PIN(80, "P PAD VSSIO 13"),
PINCTRL_PIN(81, "P PAD VDDIO 13"),
PINCTRL_PIN(82, "PO SYS 1 CLK"),
PINCTRL_PIN(83, "PO SYS 2 CLK"),
PINCTRL_PIN(84, "PO SYS 0 CLK"),
PINCTRL_PIN(85, "PI SYS 0 CLKRQ"),
PINCTRL_PIN(86, "PO PWR MNGT CTRL 1"),
PINCTRL_PIN(87, "PO PWR MNGT CTRL 0"),
PINCTRL_PIN(88, "PO RESOUT2 RST N"),
PINCTRL_PIN(89, "PO RESOUT1 RST N"),
PINCTRL_PIN(90, "PO RESOUT0 RST N"),
PINCTRL_PIN(91, "PI SERVICE N"),
PINCTRL_PIN(92, "P PAD VDD 29"),
PINCTRL_PIN(93, "P PAD GND 29"),
PINCTRL_PIN(94, "P PAD VSSIO 8"),
PINCTRL_PIN(95, "P PAD VDDIO 8"),
PINCTRL_PIN(96, "PI EXT IRQ1 N"),
PINCTRL_PIN(97, "PI EXT IRQ0 N"),
PINCTRL_PIN(98, "PIO DC ON"),
PINCTRL_PIN(99, "PIO ACC APP I2C DATA"),
PINCTRL_PIN(100, "PIO ACC APP I2C CLK"),
PINCTRL_PIN(101, "P PAD VDD 12"),
PINCTRL_PIN(102, "P PAD GND 12"),
PINCTRL_PIN(103, "P PAD VSSIO 14"),
PINCTRL_PIN(104, "P PAD VDDIO 14"),
/* Pads along the right edge of the chip */
PINCTRL_PIN(105, "PIO APP I2C1 DATA"),
PINCTRL_PIN(106, "PIO APP I2C1 CLK"),
PINCTRL_PIN(107, "PO KEY OUT0"),
PINCTRL_PIN(108, "PO KEY OUT1"),
PINCTRL_PIN(109, "PO KEY OUT2"),
PINCTRL_PIN(110, "PO KEY OUT3"),
PINCTRL_PIN(111, "PO KEY OUT4"),
PINCTRL_PIN(112, "PI KEY IN0"),
PINCTRL_PIN(113, "PI KEY IN1"),
PINCTRL_PIN(114, "PI KEY IN2"),
PINCTRL_PIN(115, "P PAD VDDIO 15"),
PINCTRL_PIN(116, "P PAD VSSIO 15"),
PINCTRL_PIN(117, "P PAD GND 13"),
PINCTRL_PIN(118, "P PAD VDD 13"),
PINCTRL_PIN(119, "PI KEY IN3"),
PINCTRL_PIN(120, "PI KEY IN4"),
PINCTRL_PIN(121, "PI KEY IN5"),
PINCTRL_PIN(122, "PIO APP PCM I2S1 DATA B"),
PINCTRL_PIN(123, "PIO APP PCM I2S1 DATA A"),
PINCTRL_PIN(124, "PIO APP PCM I2S1 WS"),
PINCTRL_PIN(125, "PIO APP PCM I2S1 CLK"),
PINCTRL_PIN(126, "PIO APP PCM I2S0 DATA B"),
PINCTRL_PIN(127, "PIO APP PCM I2S0 DATA A"),
PINCTRL_PIN(128, "PIO APP PCM I2S0 WS"),
PINCTRL_PIN(129, "PIO APP PCM I2S0 CLK"),
PINCTRL_PIN(130, "P PAD VDD 17"),
PINCTRL_PIN(131, "P PAD GND 17"),
PINCTRL_PIN(132, "P PAD VSSIO 19"),
PINCTRL_PIN(133, "P PAD VDDIO 19"),
PINCTRL_PIN(134, "UART0 RTS"),
PINCTRL_PIN(135, "UART0 CTS"),
PINCTRL_PIN(136, "UART0 TX"),
PINCTRL_PIN(137, "UART0 RX"),
PINCTRL_PIN(138, "PIO ACC SPI DO"),
PINCTRL_PIN(139, "PIO ACC SPI DI"),
PINCTRL_PIN(140, "PIO ACC SPI CS0 N"),
PINCTRL_PIN(141, "PIO ACC SPI CS1 N"),
PINCTRL_PIN(142, "PIO ACC SPI CS2 N"),
PINCTRL_PIN(143, "PIO ACC SPI CLK"),
PINCTRL_PIN(144, "PO PDI EXT RST N"),
PINCTRL_PIN(145, "P PAD VDDIO 22"),
PINCTRL_PIN(146, "P PAD VSSIO 22"),
PINCTRL_PIN(147, "P PAD GND 18"),
PINCTRL_PIN(148, "P PAD VDD 18"),
PINCTRL_PIN(149, "PIO PDI C0"),
PINCTRL_PIN(150, "PIO PDI C1"),
PINCTRL_PIN(151, "PIO PDI C2"),
PINCTRL_PIN(152, "PIO PDI C3"),
PINCTRL_PIN(153, "PIO PDI C4"),
PINCTRL_PIN(154, "PIO PDI C5"),
PINCTRL_PIN(155, "PIO PDI D0"),
PINCTRL_PIN(156, "PIO PDI D1"),
PINCTRL_PIN(157, "PIO PDI D2"),
PINCTRL_PIN(158, "PIO PDI D3"),
PINCTRL_PIN(159, "P PAD VDDIO 21"),
PINCTRL_PIN(160, "P PAD VSSIO 21"),
PINCTRL_PIN(161, "PIO PDI D4"),
PINCTRL_PIN(162, "PIO PDI D5"),
PINCTRL_PIN(163, "PIO PDI D6"),
PINCTRL_PIN(164, "PIO PDI D7"),
PINCTRL_PIN(165, "PIO MS INS"),
PINCTRL_PIN(166, "MMC DATA DIR LS"),
PINCTRL_PIN(167, "MMC DATA 3"),
PINCTRL_PIN(168, "MMC DATA 2"),
PINCTRL_PIN(169, "MMC DATA 1"),
PINCTRL_PIN(170, "MMC DATA 0"),
PINCTRL_PIN(171, "MMC CMD DIR LS"),
PINCTRL_PIN(172, "P PAD VDD 27"),
PINCTRL_PIN(173, "P PAD GND 27"),
PINCTRL_PIN(174, "P PAD VSSIO 20"),
PINCTRL_PIN(175, "P PAD VDDIO 20"),
PINCTRL_PIN(176, "MMC CMD"),
PINCTRL_PIN(177, "MMC CLK"),
PINCTRL_PIN(178, "PIO APP GPIO 14"),
PINCTRL_PIN(179, "PIO APP GPIO 13"),
PINCTRL_PIN(180, "PIO APP GPIO 11"),
PINCTRL_PIN(181, "PIO APP GPIO 25"),
PINCTRL_PIN(182, "PIO APP GPIO 24"),
PINCTRL_PIN(183, "PIO APP GPIO 23"),
PINCTRL_PIN(184, "PIO APP GPIO 22"),
PINCTRL_PIN(185, "PIO APP GPIO 21"),
PINCTRL_PIN(186, "PIO APP GPIO 20"),
PINCTRL_PIN(187, "P PAD VDD 19"),
PINCTRL_PIN(188, "P PAD GND 19"),
PINCTRL_PIN(189, "P PAD VSSIO 23"),
PINCTRL_PIN(190, "P PAD VDDIO 23"),
PINCTRL_PIN(191, "PIO APP GPIO 19"),
PINCTRL_PIN(192, "PIO APP GPIO 18"),
PINCTRL_PIN(193, "PIO APP GPIO 17"),
PINCTRL_PIN(194, "PIO APP GPIO 16"),
PINCTRL_PIN(195, "PI CI D1"),
PINCTRL_PIN(196, "PI CI D0"),
PINCTRL_PIN(197, "PI CI HSYNC"),
PINCTRL_PIN(198, "PI CI VSYNC"),
PINCTRL_PIN(199, "PI CI EXT CLK"),
PINCTRL_PIN(200, "PO CI EXT RST N"),
PINCTRL_PIN(201, "P PAD VSSIO 43"),
PINCTRL_PIN(202, "P PAD VDDIO 43"),
PINCTRL_PIN(203, "PI CI D6"),
PINCTRL_PIN(204, "PI CI D7"),
PINCTRL_PIN(205, "PI CI D2"),
PINCTRL_PIN(206, "PI CI D3"),
PINCTRL_PIN(207, "PI CI D4"),
PINCTRL_PIN(208, "PI CI D5"),
PINCTRL_PIN(209, "PI CI D8"),
PINCTRL_PIN(210, "PI CI D9"),
PINCTRL_PIN(211, "P PAD VDD 20"),
PINCTRL_PIN(212, "P PAD GND 20"),
PINCTRL_PIN(213, "P PAD VSSIO 24"),
PINCTRL_PIN(214, "P PAD VDDIO 24"),
PINCTRL_PIN(215, "P PAD VDDIO 26"),
PINCTRL_PIN(216, "PO EMIF 1 A26"),
PINCTRL_PIN(217, "PO EMIF 1 A25"),
PINCTRL_PIN(218, "P PAD VSSIO 26"),
PINCTRL_PIN(219, "PO EMIF 1 A24"),
PINCTRL_PIN(220, "PO EMIF 1 A23"),
/* Pads along the bottom edge of the chip */
PINCTRL_PIN(221, "PO EMIF 1 A22"),
PINCTRL_PIN(222, "PO EMIF 1 A21"),
PINCTRL_PIN(223, "P PAD VDD 21"),
PINCTRL_PIN(224, "P PAD GND 21"),
PINCTRL_PIN(225, "P PAD VSSIO 27"),
PINCTRL_PIN(226, "P PAD VDDIO 27"),
PINCTRL_PIN(227, "PO EMIF 1 A20"),
PINCTRL_PIN(228, "PO EMIF 1 A19"),
PINCTRL_PIN(229, "PO EMIF 1 A18"),
PINCTRL_PIN(230, "PO EMIF 1 A17"),
PINCTRL_PIN(231, "P PAD VDDIO 28"),
PINCTRL_PIN(232, "P PAD VSSIO 28"),
PINCTRL_PIN(233, "PO EMIF 1 A16"),
PINCTRL_PIN(234, "PIO EMIF 1 D15"),
PINCTRL_PIN(235, "PO EMIF 1 A15"),
PINCTRL_PIN(236, "PIO EMIF 1 D14"),
PINCTRL_PIN(237, "P PAD VDD 22"),
PINCTRL_PIN(238, "P PAD GND 22"),
PINCTRL_PIN(239, "P PAD VSSIO 29"),
PINCTRL_PIN(240, "P PAD VDDIO 29"),
PINCTRL_PIN(241, "PO EMIF 1 A14"),
PINCTRL_PIN(242, "PIO EMIF 1 D13"),
PINCTRL_PIN(243, "PO EMIF 1 A13"),
PINCTRL_PIN(244, "PIO EMIF 1 D12"),
PINCTRL_PIN(245, "P PAD VSSIO 30"),
PINCTRL_PIN(246, "P PAD VDDIO 30"),
PINCTRL_PIN(247, "PO EMIF 1 A12"),
PINCTRL_PIN(248, "PIO EMIF 1 D11"),
PINCTRL_PIN(249, "PO EMIF 1 A11"),
PINCTRL_PIN(250, "PIO EMIF 1 D10"),
PINCTRL_PIN(251, "P PAD VSSIO 31"),
PINCTRL_PIN(252, "P PAD VDDIO 31"),
PINCTRL_PIN(253, "PO EMIF 1 A10"),
PINCTRL_PIN(254, "PIO EMIF 1 D09"),
PINCTRL_PIN(255, "PO EMIF 1 A09"),
PINCTRL_PIN(256, "P PAD VDDIO 32"),
PINCTRL_PIN(257, "P PAD VSSIO 32"),
PINCTRL_PIN(258, "P PAD GND 24"),
PINCTRL_PIN(259, "P PAD VDD 24"),
PINCTRL_PIN(260, "PIO EMIF 1 D08"),
PINCTRL_PIN(261, "PO EMIF 1 A08"),
PINCTRL_PIN(262, "PIO EMIF 1 D07"),
PINCTRL_PIN(263, "PO EMIF 1 A07"),
PINCTRL_PIN(264, "P PAD VDDIO 33"),
PINCTRL_PIN(265, "P PAD VSSIO 33"),
PINCTRL_PIN(266, "PIO EMIF 1 D06"),
PINCTRL_PIN(267, "PO EMIF 1 A06"),
PINCTRL_PIN(268, "PIO EMIF 1 D05"),
PINCTRL_PIN(269, "PO EMIF 1 A05"),
PINCTRL_PIN(270, "P PAD VDDIO 34"),
PINCTRL_PIN(271, "P PAD VSSIO 34"),
PINCTRL_PIN(272, "PIO EMIF 1 D04"),
PINCTRL_PIN(273, "PO EMIF 1 A04"),
PINCTRL_PIN(274, "PIO EMIF 1 D03"),
PINCTRL_PIN(275, "PO EMIF 1 A03"),
PINCTRL_PIN(276, "P PAD VDDIO 35"),
PINCTRL_PIN(277, "P PAD VSSIO 35"),
PINCTRL_PIN(278, "P PAD GND 23"),
PINCTRL_PIN(279, "P PAD VDD 23"),
PINCTRL_PIN(280, "PIO EMIF 1 D02"),
PINCTRL_PIN(281, "PO EMIF 1 A02"),
PINCTRL_PIN(282, "PIO EMIF 1 D01"),
PINCTRL_PIN(283, "PO EMIF 1 A01"),
PINCTRL_PIN(284, "P PAD VDDIO 36"),
PINCTRL_PIN(285, "P PAD VSSIO 36"),
PINCTRL_PIN(286, "PIO EMIF 1 D00"),
PINCTRL_PIN(287, "PO EMIF 1 BE1 N"),
PINCTRL_PIN(288, "PO EMIF 1 BE0 N"),
PINCTRL_PIN(289, "PO EMIF 1 ADV N"),
PINCTRL_PIN(290, "P PAD VDDIO 37"),
PINCTRL_PIN(291, "P PAD VSSIO 37"),
PINCTRL_PIN(292, "PO EMIF 1 SD CKE0"),
PINCTRL_PIN(293, "PO EMIF 1 OE N"),
PINCTRL_PIN(294, "PO EMIF 1 WE N"),
PINCTRL_PIN(295, "P PAD VDDIO 38"),
PINCTRL_PIN(296, "P PAD VSSIO 38"),
PINCTRL_PIN(297, "PO EMIF 1 CLK"),
PINCTRL_PIN(298, "PIO EMIF 1 SD CLK"),
PINCTRL_PIN(299, "P PAD VSSIO 45 (not bonded)"),
PINCTRL_PIN(300, "P PAD VDDIO 42"),
PINCTRL_PIN(301, "P PAD VSSIO 42"),
PINCTRL_PIN(302, "P PAD GND 31"),
PINCTRL_PIN(303, "P PAD VDD 31"),
PINCTRL_PIN(304, "PI EMIF 1 RET CLK"),
PINCTRL_PIN(305, "PI EMIF 1 WAIT N"),
PINCTRL_PIN(306, "PI EMIF 1 NFIF READY"),
PINCTRL_PIN(307, "PO EMIF 1 SD CKE1"),
PINCTRL_PIN(308, "PO EMIF 1 CS3 N"),
PINCTRL_PIN(309, "P PAD VDD 25"),
PINCTRL_PIN(310, "P PAD GND 25"),
PINCTRL_PIN(311, "P PAD VSSIO 39"),
PINCTRL_PIN(312, "P PAD VDDIO 39"),
PINCTRL_PIN(313, "PO EMIF 1 CS2 N"),
PINCTRL_PIN(314, "PO EMIF 1 CS1 N"),
PINCTRL_PIN(315, "PO EMIF 1 CS0 N"),
PINCTRL_PIN(316, "PO ETM TRACE PKT0"),
PINCTRL_PIN(317, "PO ETM TRACE PKT1"),
PINCTRL_PIN(318, "PO ETM TRACE PKT2"),
PINCTRL_PIN(319, "P PAD VDD 30"),
PINCTRL_PIN(320, "P PAD GND 30"),
PINCTRL_PIN(321, "P PAD VSSIO 44"),
PINCTRL_PIN(322, "P PAD VDDIO 44"),
PINCTRL_PIN(323, "PO ETM TRACE PKT3"),
PINCTRL_PIN(324, "PO ETM TRACE PKT4"),
PINCTRL_PIN(325, "PO ETM TRACE PKT5"),
PINCTRL_PIN(326, "PO ETM TRACE PKT6"),
PINCTRL_PIN(327, "PO ETM TRACE PKT7"),
PINCTRL_PIN(328, "PO ETM PIPE STAT0"),
PINCTRL_PIN(329, "P PAD VDD 26"),
PINCTRL_PIN(330, "P PAD GND 26"),
PINCTRL_PIN(331, "P PAD VSSIO 40"),
PINCTRL_PIN(332, "P PAD VDDIO 40"),
PINCTRL_PIN(333, "PO ETM PIPE STAT1"),
PINCTRL_PIN(334, "PO ETM PIPE STAT2"),
PINCTRL_PIN(335, "PO ETM TRACE CLK"),
PINCTRL_PIN(336, "PO ETM TRACE SYNC"),
PINCTRL_PIN(337, "PIO ACC GPIO 33"),
PINCTRL_PIN(338, "PIO ACC GPIO 32"),
PINCTRL_PIN(339, "PIO ACC GPIO 30"),
PINCTRL_PIN(340, "PIO ACC GPIO 29"),
PINCTRL_PIN(341, "P PAD VDDIO 17"),
PINCTRL_PIN(342, "P PAD VSSIO 17"),
PINCTRL_PIN(343, "P PAD GND 15"),
PINCTRL_PIN(344, "P PAD VDD 15"),
PINCTRL_PIN(345, "PIO ACC GPIO 28"),
PINCTRL_PIN(346, "PIO ACC GPIO 27"),
PINCTRL_PIN(347, "PIO ACC GPIO 16"),
PINCTRL_PIN(348, "PI TAP TMS"),
PINCTRL_PIN(349, "PI TAP TDI"),
PINCTRL_PIN(350, "PO TAP TDO"),
PINCTRL_PIN(351, "PI TAP RST N"),
/* Pads along the left edge of the chip */
PINCTRL_PIN(352, "PI EMU MODE 0"),
PINCTRL_PIN(353, "PO TAP RET CLK"),
PINCTRL_PIN(354, "PI TAP CLK"),
PINCTRL_PIN(355, "PO EMIF 0 SD CS N"),
PINCTRL_PIN(356, "PO EMIF 0 SD CAS N"),
PINCTRL_PIN(357, "PO EMIF 0 SD WE N"),
PINCTRL_PIN(358, "P PAD VDDIO 1"),
PINCTRL_PIN(359, "P PAD VSSIO 1"),
PINCTRL_PIN(360, "P PAD GND 1"),
PINCTRL_PIN(361, "P PAD VDD 1"),
PINCTRL_PIN(362, "PO EMIF 0 SD CKE"),
PINCTRL_PIN(363, "PO EMIF 0 SD DQML"),
PINCTRL_PIN(364, "PO EMIF 0 SD DQMU"),
PINCTRL_PIN(365, "PO EMIF 0 SD RAS N"),
PINCTRL_PIN(366, "PIO EMIF 0 D15"),
PINCTRL_PIN(367, "PO EMIF 0 A15"),
PINCTRL_PIN(368, "PIO EMIF 0 D14"),
PINCTRL_PIN(369, "PO EMIF 0 A14"),
PINCTRL_PIN(370, "PIO EMIF 0 D13"),
PINCTRL_PIN(371, "PO EMIF 0 A13"),
PINCTRL_PIN(372, "P PAD VDDIO 2"),
PINCTRL_PIN(373, "P PAD VSSIO 2"),
PINCTRL_PIN(374, "P PAD GND 2"),
PINCTRL_PIN(375, "P PAD VDD 2"),
PINCTRL_PIN(376, "PIO EMIF 0 D12"),
PINCTRL_PIN(377, "PO EMIF 0 A12"),
PINCTRL_PIN(378, "PIO EMIF 0 D11"),
PINCTRL_PIN(379, "PO EMIF 0 A11"),
PINCTRL_PIN(380, "PIO EMIF 0 D10"),
PINCTRL_PIN(381, "PO EMIF 0 A10"),
PINCTRL_PIN(382, "PIO EMIF 0 D09"),
PINCTRL_PIN(383, "PO EMIF 0 A09"),
PINCTRL_PIN(384, "PIO EMIF 0 D08"),
PINCTRL_PIN(385, "PO EMIF 0 A08"),
PINCTRL_PIN(386, "PIO EMIF 0 D07"),
PINCTRL_PIN(387, "PO EMIF 0 A07"),
PINCTRL_PIN(388, "P PAD VDDIO 3"),
PINCTRL_PIN(389, "P PAD VSSIO 3"),
PINCTRL_PIN(390, "P PAD GND 3"),
PINCTRL_PIN(391, "P PAD VDD 3"),
PINCTRL_PIN(392, "PO EFUSE RDOUT1"),
PINCTRL_PIN(393, "PIO EMIF 0 D06"),
PINCTRL_PIN(394, "PO EMIF 0 A06"),
PINCTRL_PIN(395, "PIO EMIF 0 D05"),
PINCTRL_PIN(396, "PO EMIF 0 A05"),
PINCTRL_PIN(397, "PIO EMIF 0 D04"),
PINCTRL_PIN(398, "PO EMIF 0 A04"),
PINCTRL_PIN(399, "A PADS/A VDDCO1v82v5 GND 80U SF LIN VDDCO AF"),
PINCTRL_PIN(400, "PWR VDDCO AF"),
PINCTRL_PIN(401, "PWR EFUSE HV1"),
PINCTRL_PIN(402, "P PAD VSSIO 4"),
PINCTRL_PIN(403, "P PAD VDDIO 4"),
PINCTRL_PIN(404, "P PAD GND 4"),
PINCTRL_PIN(405, "P PAD VDD 4"),
PINCTRL_PIN(406, "PIO EMIF 0 D03"),
PINCTRL_PIN(407, "PO EMIF 0 A03"),
PINCTRL_PIN(408, "PWR EFUSE HV2"),
PINCTRL_PIN(409, "PWR EFUSE HV3"),
PINCTRL_PIN(410, "PIO EMIF 0 D02"),
PINCTRL_PIN(411, "PO EMIF 0 A02"),
PINCTRL_PIN(412, "PIO EMIF 0 D01"),
PINCTRL_PIN(413, "P PAD VDDIO 5"),
PINCTRL_PIN(414, "P PAD VSSIO 5"),
PINCTRL_PIN(415, "P PAD GND 5"),
PINCTRL_PIN(416, "P PAD VDD 5"),
PINCTRL_PIN(417, "PO EMIF 0 A01"),
PINCTRL_PIN(418, "PIO EMIF 0 D00"),
PINCTRL_PIN(419, "IF 0 SD CLK"),
PINCTRL_PIN(420, "APP SPI CLK"),
PINCTRL_PIN(421, "APP SPI DO"),
PINCTRL_PIN(422, "APP SPI DI"),
PINCTRL_PIN(423, "APP SPI CS0"),
PINCTRL_PIN(424, "APP SPI CS1"),
PINCTRL_PIN(425, "APP SPI CS2"),
PINCTRL_PIN(426, "PIO APP GPIO 10"),
PINCTRL_PIN(427, "P PAD VDDIO 41"),
PINCTRL_PIN(428, "P PAD VSSIO 41"),
PINCTRL_PIN(429, "P PAD GND 6"),
PINCTRL_PIN(430, "P PAD VDD 6"),
PINCTRL_PIN(431, "PIO ACC SDIO0 CMD"),
PINCTRL_PIN(432, "PIO ACC SDIO0 CK"),
PINCTRL_PIN(433, "PIO ACC SDIO0 D3"),
PINCTRL_PIN(434, "PIO ACC SDIO0 D2"),
PINCTRL_PIN(435, "PIO ACC SDIO0 D1"),
PINCTRL_PIN(436, "PIO ACC SDIO0 D0"),
PINCTRL_PIN(437, "PIO USB PU"),
PINCTRL_PIN(438, "PIO USB SP"),
PINCTRL_PIN(439, "PIO USB DAT VP"),
PINCTRL_PIN(440, "PIO USB SE0 VM"),
PINCTRL_PIN(441, "PIO USB OE"),
PINCTRL_PIN(442, "PIO USB SUSP"),
PINCTRL_PIN(443, "P PAD VSSIO 6"),
PINCTRL_PIN(444, "P PAD VDDIO 6"),
PINCTRL_PIN(445, "PIO USB PUEN"),
PINCTRL_PIN(446, "PIO ACC UART0 RX"),
PINCTRL_PIN(447, "PIO ACC UART0 TX"),
PINCTRL_PIN(448, "PIO ACC UART0 CTS"),
PINCTRL_PIN(449, "PIO ACC UART0 RTS"),
PINCTRL_PIN(450, "PIO ACC UART3 RX"),
PINCTRL_PIN(451, "PIO ACC UART3 TX"),
PINCTRL_PIN(452, "PIO ACC UART3 CTS"),
PINCTRL_PIN(453, "PIO ACC UART3 RTS"),
PINCTRL_PIN(454, "PIO ACC IRDA TX"),
PINCTRL_PIN(455, "P PAD VDDIO 7"),
PINCTRL_PIN(456, "P PAD VSSIO 7"),
PINCTRL_PIN(457, "P PAD GND 7"),
PINCTRL_PIN(458, "P PAD VDD 7"),
PINCTRL_PIN(459, "PIO ACC IRDA RX"),
PINCTRL_PIN(460, "PIO ACC PCM I2S CLK"),
PINCTRL_PIN(461, "PIO ACC PCM I2S WS"),
PINCTRL_PIN(462, "PIO ACC PCM I2S DATA A"),
PINCTRL_PIN(463, "PIO ACC PCM I2S DATA B"),
PINCTRL_PIN(464, "PO SIM CLK"),
PINCTRL_PIN(465, "PIO ACC IRDA SD"),
PINCTRL_PIN(466, "PIO SIM DATA"),
};
/**
* @dev: a pointer back to containing device
* @virtbase: the offset to the controller in virtual memory
*/
struct u300_pmx {
struct device *dev;
struct pinctrl_dev *pctl;
u32 phybase;
u32 physize;
void __iomem *virtbase;
};
/**
* u300_pmx_registers - the array of registers read/written for each pinmux
* shunt setting
*/
const u32 u300_pmx_registers[] = {
U300_SYSCON_PMC1LR,
U300_SYSCON_PMC1HR,
U300_SYSCON_PMC2R,
U300_SYSCON_PMC3R,
U300_SYSCON_PMC4R,
};
/**
* struct u300_pin_group - describes a U300 pin group
* @name: the name of this specific pin group
* @pins: an array of discrete physical pins used in this group, taken
* from the driver-local pin enumeration space
* @num_pins: the number of pins in this group array, i.e. the number of
* elements in .pins so we can iterate over that array
*/
struct u300_pin_group {
const char *name;
const unsigned int *pins;
const unsigned num_pins;
};
/**
* struct pmx_onmask - mask bits to enable/disable padmux
* @mask: mask bits to disable
* @val: mask bits to enable
*
* onmask lazy dog:
* onmask = {
* {"PMC1LR" mask, "PMC1LR" value},
* {"PMC1HR" mask, "PMC1HR" value},
* {"PMC2R" mask, "PMC2R" value},
* {"PMC3R" mask, "PMC3R" value},
* {"PMC4R" mask, "PMC4R" value}
* }
*/
struct u300_pmx_mask {
u16 mask;
u16 bits;
};
/* The chip power pins are VDD, GND, VDDIO and VSSIO */
static const unsigned power_pins[] = { 0, 1, 3, 31, 46, 47, 49, 50, 61, 62, 63,
64, 78, 79, 80, 81, 92, 93, 94, 95, 101, 102, 103, 104, 115, 116, 117,
118, 130, 131, 132, 133, 145, 146, 147, 148, 159, 160, 172, 173, 174,
175, 187, 188, 189, 190, 201, 202, 211, 212, 213, 214, 215, 218, 223,
224, 225, 226, 231, 232, 237, 238, 239, 240, 245, 246, 251, 252, 256,
257, 258, 259, 264, 265, 270, 271, 276, 277, 278, 279, 284, 285, 290,
291, 295, 296, 299, 300, 301, 302, 303, 309, 310, 311, 312, 319, 320,
321, 322, 329, 330, 331, 332, 341, 342, 343, 344, 358, 359, 360, 361,
372, 373, 374, 375, 388, 389, 390, 391, 402, 403, 404, 405, 413, 414,
415, 416, 427, 428, 429, 430, 443, 444, 455, 456, 457, 458 };
static const unsigned emif0_pins[] = { 355, 356, 357, 362, 363, 364, 365, 366,
367, 368, 369, 370, 371, 376, 377, 378, 379, 380, 381, 382, 383, 384,
385, 386, 387, 393, 394, 395, 396, 397, 398, 406, 407, 410, 411, 412,
417, 418 };
static const unsigned emif1_pins[] = { 216, 217, 219, 220, 221, 222, 227, 228,
229, 230, 233, 234, 235, 236, 241, 242, 243, 244, 247, 248, 249, 250,
253, 254, 255, 260, 261, 262, 263, 266, 267, 268, 269, 272, 273, 274,
275, 280, 281, 282, 283, 286, 287, 288, 289, 292, 293, 294, 297, 298,
304, 305, 306, 307, 308, 313, 314, 315 };
static const unsigned uart0_pins[] = { 134, 135, 136, 137 };
static const unsigned mmc0_pins[] = { 166, 167, 168, 169, 170, 171, 176, 177 };
static const unsigned spi0_pins[] = { 420, 421, 422, 423, 424, 425 };
static const struct u300_pmx_mask emif0_mask[] = {
{0, 0},
{0, 0},
{0, 0},
{0, 0},
{0, 0},
};
static const struct u300_pmx_mask emif1_mask[] = {
/*
* This connects the SDRAM to CS2 and a NAND flash to
* CS0 on the EMIF.
*/
{
U300_SYSCON_PMC1LR_EMIF_1_CS2_MASK |
U300_SYSCON_PMC1LR_EMIF_1_CS1_MASK |
U300_SYSCON_PMC1LR_EMIF_1_CS0_MASK |
U300_SYSCON_PMC1LR_EMIF_1_MASK,
U300_SYSCON_PMC1LR_EMIF_1_CS2_SDRAM |
U300_SYSCON_PMC1LR_EMIF_1_CS1_STATIC |
U300_SYSCON_PMC1LR_EMIF_1_CS0_NFIF |
U300_SYSCON_PMC1LR_EMIF_1_SDRAM0
},
{0, 0},
{0, 0},
{0, 0},
{0, 0},
};
static const struct u300_pmx_mask uart0_mask[] = {
{0, 0},
{
U300_SYSCON_PMC1HR_APP_UART0_1_MASK |
U300_SYSCON_PMC1HR_APP_UART0_2_MASK,
U300_SYSCON_PMC1HR_APP_UART0_1_UART0 |
U300_SYSCON_PMC1HR_APP_UART0_2_UART0
},
{0, 0},
{0, 0},
{0, 0},
};
static const struct u300_pmx_mask mmc0_mask[] = {
{ U300_SYSCON_PMC1LR_MMCSD_MASK, U300_SYSCON_PMC1LR_MMCSD_MMCSD},
{0, 0},
{0, 0},
{0, 0},
{ U300_SYSCON_PMC4R_APP_MISC_12_MASK,
U300_SYSCON_PMC4R_APP_MISC_12_APP_GPIO }
};
static const struct u300_pmx_mask spi0_mask[] = {
{0, 0},
{
U300_SYSCON_PMC1HR_APP_SPI_2_MASK |
U300_SYSCON_PMC1HR_APP_SPI_CS_1_MASK |
U300_SYSCON_PMC1HR_APP_SPI_CS_2_MASK,
U300_SYSCON_PMC1HR_APP_SPI_2_SPI |
U300_SYSCON_PMC1HR_APP_SPI_CS_1_SPI |
U300_SYSCON_PMC1HR_APP_SPI_CS_2_SPI
},
{0, 0},
{0, 0},
{0, 0}
};
static const struct u300_pin_group u300_pin_groups[] = {
{
.name = "powergrp",
.pins = power_pins,
.num_pins = ARRAY_SIZE(power_pins),
},
{
.name = "emif0grp",
.pins = emif0_pins,
.num_pins = ARRAY_SIZE(emif0_pins),
},
{
.name = "emif1grp",
.pins = emif1_pins,
.num_pins = ARRAY_SIZE(emif1_pins),
},
{
.name = "uart0grp",
.pins = uart0_pins,
.num_pins = ARRAY_SIZE(uart0_pins),
},
{
.name = "mmc0grp",
.pins = mmc0_pins,
.num_pins = ARRAY_SIZE(mmc0_pins),
},
{
.name = "spi0grp",
.pins = spi0_pins,
.num_pins = ARRAY_SIZE(spi0_pins),
},
};
static int u300_list_groups(struct pinctrl_dev *pctldev, unsigned selector)
{
if (selector >= ARRAY_SIZE(u300_pin_groups))
return -EINVAL;
return 0;
}
static const char *u300_get_group_name(struct pinctrl_dev *pctldev,
unsigned selector)
{
if (selector >= ARRAY_SIZE(u300_pin_groups))
return NULL;
return u300_pin_groups[selector].name;
}
static int u300_get_group_pins(struct pinctrl_dev *pctldev, unsigned selector,
const unsigned **pins,
unsigned *num_pins)
{
if (selector >= ARRAY_SIZE(u300_pin_groups))
return -EINVAL;
*pins = u300_pin_groups[selector].pins;
*num_pins = u300_pin_groups[selector].num_pins;
return 0;
}
static void u300_pin_dbg_show(struct pinctrl_dev *pctldev, struct seq_file *s,
unsigned offset)
{
seq_printf(s, " " DRIVER_NAME);
}
static struct pinctrl_ops u300_pctrl_ops = {
.list_groups = u300_list_groups,
.get_group_name = u300_get_group_name,
.get_group_pins = u300_get_group_pins,
.pin_dbg_show = u300_pin_dbg_show,
};
/*
* Here we define the available functions and their corresponding pin groups
*/
/**
* struct u300_pmx_func - describes U300 pinmux functions
* @name: the name of this specific function
* @groups: corresponding pin groups
* @onmask: bits to set to enable this when doing pin muxing
*/
struct u300_pmx_func {
const char *name;
const char * const *groups;
const unsigned num_groups;
const struct u300_pmx_mask *mask;
};
static const char * const powergrps[] = { "powergrp" };
static const char * const emif0grps[] = { "emif0grp" };
static const char * const emif1grps[] = { "emif1grp" };
static const char * const uart0grps[] = { "uart0grp" };
static const char * const mmc0grps[] = { "mmc0grp" };
static const char * const spi0grps[] = { "spi0grp" };
static const struct u300_pmx_func u300_pmx_functions[] = {
{
.name = "power",
.groups = powergrps,
.num_groups = ARRAY_SIZE(powergrps),
/* Mask is N/A */
},
{
.name = "emif0",
.groups = emif0grps,
.num_groups = ARRAY_SIZE(emif0grps),
.mask = emif0_mask,
},
{
.name = "emif1",
.groups = emif1grps,
.num_groups = ARRAY_SIZE(emif1grps),
.mask = emif1_mask,
},
{
.name = "uart0",
.groups = uart0grps,
.num_groups = ARRAY_SIZE(uart0grps),
.mask = uart0_mask,
},
{
.name = "mmc0",
.groups = mmc0grps,
.num_groups = ARRAY_SIZE(mmc0grps),
.mask = mmc0_mask,
},
{
.name = "spi0",
.groups = spi0grps,
.num_groups = ARRAY_SIZE(spi0grps),
.mask = spi0_mask,
},
};
static void u300_pmx_endisable(struct u300_pmx *upmx, unsigned selector,
bool enable)
{
u16 regval, val, mask;
int i;
for (i = 0; i < ARRAY_SIZE(u300_pmx_registers); i++) {
if (enable)
val = u300_pmx_functions[selector].mask->bits;
else
val = 0;
mask = u300_pmx_functions[selector].mask->mask;
if (mask != 0) {
regval = readw(upmx->virtbase + u300_pmx_registers[i]);
regval &= ~mask;
regval |= val;
writew(regval, upmx->virtbase + u300_pmx_registers[i]);
}
}
}
static int u300_pmx_enable(struct pinctrl_dev *pctldev, unsigned selector,
unsigned group)
{
struct u300_pmx *upmx;
/* There is nothing to do with the power pins */
if (selector == 0)
return 0;
upmx = pinctrl_dev_get_drvdata(pctldev);
u300_pmx_endisable(upmx, selector, true);
return 0;
}
static void u300_pmx_disable(struct pinctrl_dev *pctldev, unsigned selector,
unsigned group)
{
struct u300_pmx *upmx;
/* There is nothing to do with the power pins */
if (selector == 0)
return;
upmx = pinctrl_dev_get_drvdata(pctldev);
u300_pmx_endisable(upmx, selector, false);
}
static int u300_pmx_list_funcs(struct pinctrl_dev *pctldev, unsigned selector)
{
if (selector >= ARRAY_SIZE(u300_pmx_functions))
return -EINVAL;
return 0;
}
static const char *u300_pmx_get_func_name(struct pinctrl_dev *pctldev,
unsigned selector)
{
return u300_pmx_functions[selector].name;
}
static int u300_pmx_get_groups(struct pinctrl_dev *pctldev, unsigned selector,
const char * const **groups,
unsigned * const num_groups)
{
*groups = u300_pmx_functions[selector].groups;
*num_groups = u300_pmx_functions[selector].num_groups;
return 0;
}
static struct pinmux_ops u300_pmx_ops = {
.list_functions = u300_pmx_list_funcs,
.get_function_name = u300_pmx_get_func_name,
.get_function_groups = u300_pmx_get_groups,
.enable = u300_pmx_enable,
.disable = u300_pmx_disable,
};
/*
* FIXME: this will be set to sane values as this driver engulfs
* drivers/gpio/gpio-u300.c and we really know this stuff.
*/
static struct pinctrl_gpio_range u300_gpio_range = {
.name = "COH901*",
.id = 0,
.base = 0,
.npins = 64,
};
static struct pinctrl_desc u300_pmx_desc = {
.name = DRIVER_NAME,
.pins = u300_pads,
.npins = ARRAY_SIZE(u300_pads),
.maxpin = U300_NUM_PADS-1,
.pctlops = &u300_pctrl_ops,
.pmxops = &u300_pmx_ops,
.owner = THIS_MODULE,
};
static int __init u300_pmx_probe(struct platform_device *pdev)
{
int ret;
struct u300_pmx *upmx;
struct resource *res;
/* Create state holders etc for this driver */
upmx = devm_kzalloc(&pdev->dev, sizeof(*upmx), GFP_KERNEL);
if (!upmx)
return -ENOMEM;
upmx->dev = &pdev->dev;
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!res) {
ret = -ENOENT;
goto out_no_resource;
}
upmx->phybase = res->start;
upmx->physize = resource_size(res);
if (request_mem_region(upmx->phybase, upmx->physize,
DRIVER_NAME) == NULL) {
ret = -ENOMEM;
goto out_no_memregion;
}
upmx->virtbase = ioremap(upmx->phybase, upmx->physize);
if (!upmx->virtbase) {
ret = -ENOMEM;
goto out_no_remap;
}
upmx->pctl = pinctrl_register(&u300_pmx_desc, &pdev->dev, upmx);
if (!upmx->pctl) {
dev_err(&pdev->dev, "could not register U300 pinmux driver\n");
ret = -EINVAL;
goto out_no_pmx;
}
/* We will handle a range of GPIO pins */
pinctrl_add_gpio_range(upmx->pctl, &u300_gpio_range);
platform_set_drvdata(pdev, upmx);
dev_info(&pdev->dev, "initialized U300 pinmux driver\n");
return 0;
out_no_pmx:
iounmap(upmx->virtbase);
out_no_remap:
platform_set_drvdata(pdev, NULL);
out_no_memregion:
release_mem_region(upmx->phybase, upmx->physize);
out_no_resource:
devm_kfree(&pdev->dev, upmx);
return ret;
}
static int __exit u300_pmx_remove(struct platform_device *pdev)
{
struct u300_pmx *upmx = platform_get_drvdata(pdev);
pinctrl_remove_gpio_range(upmx->pctl, &u300_gpio_range);
pinctrl_unregister(upmx->pctl);
iounmap(upmx->virtbase);
release_mem_region(upmx->phybase, upmx->physize);
platform_set_drvdata(pdev, NULL);
devm_kfree(&pdev->dev, upmx);
return 0;
}
static struct platform_driver u300_pmx_driver = {
.driver = {
.name = DRIVER_NAME,
.owner = THIS_MODULE,
},
.remove = __exit_p(u300_pmx_remove),
};
static int __init u300_pmx_init(void)
{
return platform_driver_probe(&u300_pmx_driver, u300_pmx_probe);
}
arch_initcall(u300_pmx_init);
static void __exit u300_pmx_exit(void)
{
platform_driver_unregister(&u300_pmx_driver);
}
module_exit(u300_pmx_exit);
MODULE_AUTHOR("Linus Walleij <linus.walleij@linaro.org>");
MODULE_DESCRIPTION("U300 pin control driver");
MODULE_LICENSE("GPL v2");
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