[PATCH v2 1/2] pinctrl: add lpc18xx pinctrl driver
Joachim Eastwood
manabian at gmail.com
Mon Apr 27 15:14:08 PDT 2015
Pinctrl driver for the System Control Unit (SCU) found on NXP
LPC18xx/43xx devices.
Driver uses the generic pinctrl DT bindings for multiplexing
and property settings.
Signed-off-by: Joachim Eastwood <manabian at gmail.com>
---
drivers/pinctrl/Kconfig | 9 +
drivers/pinctrl/Makefile | 1 +
drivers/pinctrl/pinctrl-lpc18xx.c | 1144 +++++++++++++++++++++++++++++++++++++
3 files changed, 1154 insertions(+)
create mode 100644 drivers/pinctrl/pinctrl-lpc18xx.c
diff --git a/drivers/pinctrl/Kconfig b/drivers/pinctrl/Kconfig
index aeb5729fbda6..53ae816f494e 100644
--- a/drivers/pinctrl/Kconfig
+++ b/drivers/pinctrl/Kconfig
@@ -88,6 +88,15 @@ config PINCTRL_LANTIQ
select PINMUX
select PINCONF
+config PINCTRL_LPC18XX
+ bool "NXP LPC18XX/43XX SCU pinctrl driver"
+ depends on OF && (ARCH_LPC18XX || COMPILE_TEST)
+ default ARCH_LPC18XX
+ select PINMUX
+ select GENERIC_PINCONF
+ help
+ Pinctrl driver for NXP LPC18xx/43xx System Control Unit (SCU).
+
config PINCTRL_FALCON
bool
depends on SOC_FALCON
diff --git a/drivers/pinctrl/Makefile b/drivers/pinctrl/Makefile
index 6eadf04a33b3..6a7b4baa8c94 100644
--- a/drivers/pinctrl/Makefile
+++ b/drivers/pinctrl/Makefile
@@ -34,6 +34,7 @@ obj-$(CONFIG_PINCTRL_U300) += pinctrl-u300.o
obj-$(CONFIG_PINCTRL_COH901) += pinctrl-coh901.o
obj-$(CONFIG_PINCTRL_XWAY) += pinctrl-xway.o
obj-$(CONFIG_PINCTRL_LANTIQ) += pinctrl-lantiq.o
+obj-$(CONFIG_PINCTRL_LPC18XX) += pinctrl-lpc18xx.o
obj-$(CONFIG_PINCTRL_TB10X) += pinctrl-tb10x.o
obj-$(CONFIG_PINCTRL_ST) += pinctrl-st.o
obj-$(CONFIG_PINCTRL_ZYNQ) += pinctrl-zynq.o
diff --git a/drivers/pinctrl/pinctrl-lpc18xx.c b/drivers/pinctrl/pinctrl-lpc18xx.c
new file mode 100644
index 000000000000..15fe1e2535c2
--- /dev/null
+++ b/drivers/pinctrl/pinctrl-lpc18xx.c
@@ -0,0 +1,1144 @@
+/*
+ * Pinctrl driver for NXP LPC18xx/LPC43xx System Control Unit (SCU)
+ *
+ * Copyright (C) 2015 Joachim Eastwood <manabian at gmail.com>
+ *
+ * This file is licensed under the terms of the GNU General Public
+ * License version 2. This program is licensed "as is" without any
+ * warranty of any kind, whether express or implied.
+ */
+
+#include <linux/bitops.h>
+#include <linux/clk.h>
+#include <linux/io.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
+#include <linux/pinctrl/pinctrl.h>
+#include <linux/pinctrl/pinmux.h>
+#include <linux/pinctrl/pinconf-generic.h>
+
+#include "core.h"
+#include "pinctrl-utils.h"
+
+/* LPC18XX SCU analog function registers */
+#define LPC18XX_SCU_REG_ENAIO0 0xc88
+#define LPC18XX_SCU_REG_ENAIO1 0xc8c
+#define LPC18XX_SCU_REG_ENAIO2 0xc90
+#define LPC18XX_SCU_REG_ENAIO2_DAC BIT(0)
+
+/* LPC18XX SCU pin register definitions */
+#define LPC18XX_SCU_PIN_MODE_MASK 0x7
+#define LPC18XX_SCU_PIN_EPD BIT(3)
+#define LPC18XX_SCU_PIN_EPUN BIT(4)
+#define LPC18XX_SCU_PIN_EHS BIT(5)
+#define LPC18XX_SCU_PIN_EZI BIT(6)
+#define LPC18XX_SCU_PIN_ZIF BIT(7)
+#define LPC18XX_SCU_PIN_EHD_MASK 0x300
+#define LPC18XX_SCU_PIN_EHD_POS 8
+
+#define LPC18XX_SCU_I2C0_EFP BIT(0)
+#define LPC18XX_SCU_I2C0_EHD BIT(2)
+#define LPC18XX_SCU_I2C0_EZI BIT(3)
+#define LPC18XX_SCU_I2C0_ZIF BIT(7)
+#define LPC18XX_SCU_I2C0_SCL_SHIFT 0
+#define LPC18XX_SCU_I2C0_SDA_SHIFT 8
+
+#define LPC18XX_SCU_FUNC_PER_PIN 8
+
+struct lpc18xx_scu_data {
+ struct pinctrl_dev *pctl;
+ void __iomem *base;
+ struct clk *clk;
+};
+
+/* LPC18xx pin types */
+enum {
+ TYPE_ND, /* Normal-drive */
+ TYPE_HD, /* High-drive */
+ TYPE_HS, /* High-speed */
+ TYPE_I2C0,
+ TYPE_USB1,
+};
+
+/* LPC18xx pin functions */
+enum {
+ FUNC_R, /* Reserved */
+ FUNC_ADC,
+ FUNC_ADCTRIG,
+ FUNC_CAN0,
+ FUNC_CAN1,
+ FUNC_CGU_OUT,
+ FUNC_CLKIN,
+ FUNC_CLKOUT,
+ FUNC_CTIN,
+ FUNC_CTOUT,
+ FUNC_DAC,
+ FUNC_EMC,
+ FUNC_EMC_ALT,
+ FUNC_ENET,
+ FUNC_ENET_ALT,
+ FUNC_GPIO,
+ FUNC_I2C0,
+ FUNC_I2C1,
+ FUNC_I2S0_RX_MCLK,
+ FUNC_I2S0_RX_SCK,
+ FUNC_I2S0_RX_SDA,
+ FUNC_I2S0_RX_WS,
+ FUNC_I2S0_TX_MCLK,
+ FUNC_I2S0_TX_SCK,
+ FUNC_I2S0_TX_SDA,
+ FUNC_I2S0_TX_WS,
+ FUNC_I2S1,
+ FUNC_LCD,
+ FUNC_LCD_ALT,
+ FUNC_MCTRL,
+ FUNC_NMI,
+ FUNC_QEI,
+ FUNC_SDMMC,
+ FUNC_SGPIO,
+ FUNC_SPI,
+ FUNC_SPIFI,
+ FUNC_SSP0,
+ FUNC_SSP0_ALT,
+ FUNC_SSP1,
+ FUNC_TIMER0,
+ FUNC_TIMER1,
+ FUNC_TIMER2,
+ FUNC_TIMER3,
+ FUNC_TRACE,
+ FUNC_UART0,
+ FUNC_UART1,
+ FUNC_UART2,
+ FUNC_UART3,
+ FUNC_USB0,
+ FUNC_USB1,
+};
+
+static const char *const lpc18xx_function_names[] = {
+ [FUNC_R] = "",
+ [FUNC_ADC] = "adc",
+ [FUNC_ADCTRIG] = "adctrig",
+ [FUNC_CAN0] = "can0",
+ [FUNC_CAN1] = "can1",
+ [FUNC_CGU_OUT] = "cgu_out",
+ [FUNC_CLKIN] = "clkin",
+ [FUNC_CLKOUT] = "clkout",
+ [FUNC_CTIN] = "ctin",
+ [FUNC_CTOUT] = "ctout",
+ [FUNC_DAC] = "dac",
+ [FUNC_EMC] = "emc",
+ [FUNC_EMC_ALT] = "emc_alt",
+ [FUNC_ENET] = "enet",
+ [FUNC_ENET_ALT] = "enet_alt",
+ [FUNC_GPIO] = "gpio",
+ [FUNC_I2C0] = "i2c0",
+ [FUNC_I2C1] = "i2c1",
+ [FUNC_I2S0_RX_MCLK] = "i2s0_rx_mclk",
+ [FUNC_I2S0_RX_SCK] = "i2s0_rx_sck",
+ [FUNC_I2S0_RX_SDA] = "i2s0_rx_sda",
+ [FUNC_I2S0_RX_WS] = "i2s0_rx_ws",
+ [FUNC_I2S0_TX_MCLK] = "i2s0_tx_mclk",
+ [FUNC_I2S0_TX_SCK] = "i2s0_tx_sck",
+ [FUNC_I2S0_TX_SDA] = "i2s0_tx_sda",
+ [FUNC_I2S0_TX_WS] = "i2s0_tx_ws",
+ [FUNC_I2S1] = "i2s1",
+ [FUNC_LCD] = "lcd",
+ [FUNC_LCD_ALT] = "lcd_alt",
+ [FUNC_MCTRL] = "mctrl",
+ [FUNC_NMI] = "nmi",
+ [FUNC_QEI] = "qei",
+ [FUNC_SDMMC] = "sdmmc",
+ [FUNC_SGPIO] = "sgpio",
+ [FUNC_SPI] = "spi",
+ [FUNC_SPIFI] = "spifi",
+ [FUNC_SSP0] = "ssp0",
+ [FUNC_SSP0_ALT] = "ssp0_alt",
+ [FUNC_SSP1] = "ssp1",
+ [FUNC_TIMER0] = "timer0",
+ [FUNC_TIMER1] = "timer1",
+ [FUNC_TIMER2] = "timer2",
+ [FUNC_TIMER3] = "timer3",
+ [FUNC_TRACE] = "trace",
+ [FUNC_UART0] = "uart0",
+ [FUNC_UART1] = "uart1",
+ [FUNC_UART2] = "uart2",
+ [FUNC_UART3] = "uart3",
+ [FUNC_USB0] = "usb0",
+ [FUNC_USB1] = "usb1",
+};
+
+struct lpc18xx_pin_caps {
+ unsigned int offset;
+ unsigned char functions[LPC18XX_SCU_FUNC_PER_PIN];
+ unsigned char analog;
+ unsigned char type;
+};
+
+/* Analog pins are required to have both bias and input disabled */
+#define LPC18XX_SCU_ANALOG_PIN_CFG 0x10
+
+/* Macros to maniupluate analog member in lpc18xx_pin_caps */
+#define LPC18XX_ANALOG_PIN BIT(7)
+#define LPC18XX_ANALOG_ADC(a) ((a >> 5) & 0x3)
+#define LPC18XX_ANALOG_BIT_MASK 0x1f
+#define ADC0 (LPC18XX_ANALOG_PIN | (0x00 << 5))
+#define ADC1 (LPC18XX_ANALOG_PIN | (0x01 << 5))
+#define DAC LPC18XX_ANALOG_PIN
+
+#define LPC_P(port, pin, f0, f1, f2, f3, f4, f5, f6, f7, a, t) \
+static struct lpc18xx_pin_caps lpc18xx_pin_p##port##_##pin = { \
+ .offset = 0x##port * 32 * 4 + pin * 4, \
+ .functions = { \
+ FUNC_##f0, FUNC_##f1, FUNC_##f2, \
+ FUNC_##f3, FUNC_##f4, FUNC_##f5, \
+ FUNC_##f6, FUNC_##f7, \
+ }, \
+ .analog = a, \
+ .type = TYPE_##t, \
+}
+
+#define LPC_N(pname, off, f0, f1, f2, f3, f4, f5, f6, f7, a, t) \
+static struct lpc18xx_pin_caps lpc18xx_pin_##pname = { \
+ .offset = off, \
+ .functions = { \
+ FUNC_##f0, FUNC_##f1, FUNC_##f2, \
+ FUNC_##f3, FUNC_##f4, FUNC_##f5, \
+ FUNC_##f6, FUNC_##f7, \
+ }, \
+ .analog = a, \
+ .type = TYPE_##t, \
+}
+
+
+/* Pinmuxing table taken from data sheet */
+/* Pin FUNC0 FUNC1 FUNC2 FUNC3 FUNC4 FUNC5 FUNC6 FUNC7 ANALOG TYPE */
+LPC_P(0,0, GPIO, SSP1, ENET, SGPIO, R, R, I2S0_TX_WS,I2S1, 0, ND);
+LPC_P(0,1, GPIO, SSP1,ENET_ALT,SGPIO, R, R, ENET, I2S1, 0, ND);
+LPC_P(1,0, GPIO, CTIN, EMC, R, R, SSP0, SGPIO, R, 0, ND);
+LPC_P(1,1, GPIO, CTOUT, EMC, SGPIO, R, SSP0, R, R, 0, ND);
+LPC_P(1,2, GPIO, CTOUT, EMC, SGPIO, R, SSP0, R, R, 0, ND);
+LPC_P(1,3, GPIO, CTOUT, SGPIO, EMC, USB0, SSP1, R, SDMMC, 0, ND);
+LPC_P(1,4, GPIO, CTOUT, SGPIO, EMC, USB0, SSP1, R, SDMMC, 0, ND);
+LPC_P(1,5, GPIO, CTOUT, R, EMC, USB0, SSP1, SGPIO, SDMMC, 0, ND);
+LPC_P(1,6, GPIO, CTIN, R, EMC, R, R, SGPIO, SDMMC, 0, ND);
+LPC_P(1,7, GPIO, UART1, CTOUT, EMC, USB0, R, R, R, 0, ND);
+LPC_P(1,8, GPIO, UART1, CTOUT, EMC, R, R, R, SDMMC, 0, ND);
+LPC_P(1,9, GPIO, UART1, CTOUT, EMC, R, R, R, SDMMC, 0, ND);
+LPC_P(1,10, GPIO, UART1, CTOUT, EMC, R, R, R, SDMMC, 0, ND);
+LPC_P(1,11, GPIO, UART1, CTOUT, EMC, R, R, R, SDMMC, 0, ND);
+LPC_P(1,12, GPIO, UART1, R, EMC, TIMER0, R, SGPIO, SDMMC, 0, ND);
+LPC_P(1,13, GPIO, UART1, R, EMC, TIMER0, R, SGPIO, SDMMC, 0, ND);
+LPC_P(1,14, GPIO, UART1, R, EMC, TIMER0, R, SGPIO, R, 0, ND);
+LPC_P(1,15, GPIO, UART2, SGPIO, ENET, TIMER0, R, R, R, 0, ND);
+LPC_P(1,16, GPIO, UART2, SGPIO,ENET_ALT,TIMER0, R, R, ENET, 0, ND);
+LPC_P(1,17, GPIO, UART2, R, ENET, TIMER0, CAN1, SGPIO, R, 0, HD);
+LPC_P(1,18, GPIO, UART2, R, ENET, TIMER0, CAN1, SGPIO, R, 0, ND);
+LPC_P(1,19, ENET, SSP1, R, R, CLKOUT, R, I2S0_RX_MCLK,I2S1, 0, ND);
+LPC_P(1,20, GPIO, SSP1, R, ENET, TIMER0, R, SGPIO, R, 0, ND);
+LPC_P(2,0, SGPIO, UART0, EMC, USB0, GPIO, R, TIMER3, ENET, 0, ND);
+LPC_P(2,1, SGPIO, UART0, EMC, USB0, GPIO, R, TIMER3, R, 0, ND);
+LPC_P(2,2, SGPIO, UART0, EMC, USB0, GPIO, CTIN, TIMER3, R, 0, ND);
+LPC_P(2,3, SGPIO, I2C1, UART3, CTIN, GPIO, R, TIMER3, USB0, 0, HD);
+LPC_P(2,4, SGPIO, I2C1, UART3, CTIN, GPIO, R, TIMER3, USB0, 0, HD);
+LPC_P(2,5, SGPIO, CTIN, USB1, ADCTRIG, GPIO, R, TIMER3, USB0, 0, HD);
+LPC_P(2,6, SGPIO, UART0, EMC, USB0, GPIO, CTIN, TIMER3, R, 0, ND);
+LPC_P(2,7, GPIO, CTOUT, UART3, EMC, R, R, TIMER3, R, 0, ND);
+LPC_P(2,8, SGPIO, CTOUT, UART3, EMC, GPIO, R, R, R, 0, ND);
+LPC_P(2,9, GPIO, CTOUT, UART3, EMC, R, R, R, R, 0, ND);
+LPC_P(2,10, GPIO, CTOUT, UART2, EMC, R, R, R, R, 0, ND);
+LPC_P(2,11, GPIO, CTOUT, UART2, EMC, R, R, R, R, 0, ND);
+LPC_P(2,12, GPIO, CTOUT, R, EMC, R, R, R, UART2, 0, ND);
+LPC_P(2,13, GPIO, CTIN, R, EMC, R, R, R, UART2, 0, ND);
+LPC_P(3,0, I2S0_RX_SCK, I2S0_RX_MCLK, I2S0_TX_SCK, I2S0_TX_MCLK,SSP0,R,R,R, 0, ND);
+LPC_P(3,1, I2S0_TX_WS, I2S0_RX_WS,CAN0,USB1,GPIO, R, LCD, R, 0, ND);
+LPC_P(3,2, I2S0_TX_SDA, I2S0_RX_SDA,CAN0,USB1,GPIO, R, LCD, R, 0, ND);
+LPC_P(3,3, R, SPI, SSP0, SPIFI, CGU_OUT,R, I2S0_TX_MCLK, I2S1, 0, HS);
+LPC_P(3,4, GPIO, R, R, SPIFI, UART1, I2S0_TX_WS, I2S1, LCD, 0, ND);
+LPC_P(3,5, GPIO, R, R, SPIFI, UART1, I2S0_TX_SDA,I2S1, LCD, 0, ND);
+LPC_P(3,6, GPIO, SPI, SSP0, SPIFI, R, SSP0_ALT, R, R, 0, ND);
+LPC_P(3,7, R, SPI, SSP0, SPIFI, GPIO, SSP0_ALT, R, R, 0, ND);
+LPC_P(3,8, R, SPI, SSP0, SPIFI, GPIO, SSP0_ALT, R, R, 0, ND);
+LPC_P(4,0, GPIO, MCTRL, NMI, R, R, LCD, UART3, R, 0, ND);
+LPC_P(4,1, GPIO, CTOUT, LCD, R, R, LCD_ALT, UART3, ENET, ADC0|1, ND);
+LPC_P(4,2, GPIO, CTOUT, LCD, R, R, LCD_ALT, UART3, SGPIO, 0, ND);
+LPC_P(4,3, GPIO, CTOUT, LCD, R, R, LCD_ALT, UART3, SGPIO, ADC0|0, ND);
+LPC_P(4,4, GPIO, CTOUT, LCD, R, R, LCD_ALT, UART3, SGPIO, DAC, ND);
+LPC_P(4,5, GPIO, CTOUT, LCD, R, R, R, R, SGPIO, 0, ND);
+LPC_P(4,6, GPIO, CTOUT, LCD, R, R, R, R, SGPIO, 0, ND);
+LPC_P(4,7, LCD, CLKIN, R, R, R, R, I2S1,I2S0_TX_SCK, 0, ND);
+LPC_P(4,8, R, CTIN, LCD, R, GPIO, LCD_ALT, CAN1, SGPIO, 0, ND);
+LPC_P(4,9, R, CTIN, LCD, R, GPIO, LCD_ALT, CAN1, SGPIO, 0, ND);
+LPC_P(4,10, R, CTIN, LCD, R, GPIO, LCD_ALT, R, SGPIO, 0, ND);
+LPC_P(5,0, GPIO, MCTRL, EMC, R, UART1, TIMER1, R, R, 0, ND);
+LPC_P(5,1, GPIO, MCTRL, EMC, R, UART1, TIMER1, R, R, 0, ND);
+LPC_P(5,2, GPIO, MCTRL, EMC, R, UART1, TIMER1, R, R, 0, ND);
+LPC_P(5,3, GPIO, MCTRL, EMC, R, UART1, TIMER1, R, R, 0, ND);
+LPC_P(5,4, GPIO, MCTRL, EMC, R, UART1, TIMER1, R, R, 0, ND);
+LPC_P(5,5, GPIO, MCTRL, EMC, R, UART1, TIMER1, R, R, 0, ND);
+LPC_P(5,6, GPIO, MCTRL, EMC, R, UART1, TIMER1, R, R, 0, ND);
+LPC_P(5,7, GPIO, MCTRL, EMC, R, UART1, TIMER1, R, R, 0, ND);
+LPC_P(6,0, R, I2S0_RX_MCLK,R, R, I2S0_RX_SCK, R, R, R, 0, ND);
+LPC_P(6,1, GPIO, EMC, UART0, I2S0_RX_WS, R, TIMER2, R, R, 0, ND);
+LPC_P(6,2, GPIO, EMC, UART0, I2S0_RX_SDA, R, TIMER2, R, R, 0, ND);
+LPC_P(6,3, GPIO, USB0, SGPIO, EMC, R, TIMER2, R, R, 0, ND);
+LPC_P(6,4, GPIO, CTIN, UART0, EMC, R, R, R, R, 0, ND);
+LPC_P(6,5, GPIO, CTOUT, UART0, EMC, R, R, R, R, 0, ND);
+LPC_P(6,6, GPIO, EMC, SGPIO, USB0, R, TIMER2, R, R, 0, ND);
+LPC_P(6,7, R, EMC, SGPIO, USB0, GPIO, TIMER2, R, R, 0, ND);
+LPC_P(6,8, R, EMC, SGPIO, USB0, GPIO, TIMER2, R, R, 0, ND);
+LPC_P(6,9, GPIO, R, R, EMC, R, TIMER2, R, R, 0, ND);
+LPC_P(6,10, GPIO, MCTRL, R, EMC, R, R, R, R, 0, ND);
+LPC_P(6,11, GPIO, R, R, EMC, R, TIMER2, R, R, 0, ND);
+LPC_P(6,12, GPIO, CTOUT, R, EMC, R, R, R, R, 0, ND);
+LPC_P(7,0, GPIO, CTOUT, R, LCD, R, R, R, SGPIO, 0, ND);
+LPC_P(7,1, GPIO, CTOUT,I2S0_TX_WS,LCD,LCD_ALT, R, UART2, SGPIO, 0, ND);
+LPC_P(7,2, GPIO, CTIN,I2S0_TX_SDA,LCD,LCD_ALT, R, UART2, SGPIO, 0, ND);
+LPC_P(7,3, GPIO, CTIN, R, LCD,LCD_ALT, R, R, R, 0, ND);
+LPC_P(7,4, GPIO, CTOUT, R, LCD,LCD_ALT, TRACE, R, R, ADC0|4, ND);
+LPC_P(7,5, GPIO, CTOUT, R, LCD,LCD_ALT, TRACE, R, R, ADC0|3, ND);
+LPC_P(7,6, GPIO, CTOUT, R, LCD, R, TRACE, R, R, 0, ND);
+LPC_P(7,7, GPIO, CTOUT, R, LCD, R, TRACE, ENET, SGPIO, ADC1|6, ND);
+LPC_P(8,0, GPIO, USB0, R, MCTRL, SGPIO, R, R, TIMER0, 0, HD);
+LPC_P(8,1, GPIO, USB0, R, MCTRL, SGPIO, R, R, TIMER0, 0, HD);
+LPC_P(8,2, GPIO, USB0, R, MCTRL, SGPIO, R, R, TIMER0, 0, HD);
+LPC_P(8,3, GPIO, USB1, R, LCD, LCD_ALT, R, R, TIMER0, 0, ND);
+LPC_P(8,4, GPIO, USB1, R, LCD, LCD_ALT, R, R, TIMER0, 0, ND);
+LPC_P(8,5, GPIO, USB1, R, LCD, LCD_ALT, R, R, TIMER0, 0, ND);
+LPC_P(8,6, GPIO, USB1, R, LCD, LCD_ALT, R, R, TIMER0, 0, ND);
+LPC_P(8,7, GPIO, USB1, R, LCD, LCD_ALT, R, R, TIMER0, 0, ND);
+LPC_P(8,8, R, USB1, R, R, R, R,CGU_OUT, I2S1, 0, ND);
+LPC_P(9,0, GPIO, MCTRL, R, R, R, ENET, SGPIO, SSP0, 0, ND);
+LPC_P(9,1, GPIO, MCTRL, R, R, I2S0_TX_WS,ENET, SGPIO, SSP0, 0, ND);
+LPC_P(9,2, GPIO, MCTRL, R, R, I2S0_TX_SDA,ENET,SGPIO, SSP0, 0, ND);
+LPC_P(9,3, GPIO, MCTRL, USB1, R, R, ENET, SGPIO, UART3, 0, ND);
+LPC_P(9,4, R, MCTRL, USB1, R, GPIO, ENET, SGPIO, UART3, 0, ND);
+LPC_P(9,5, R, MCTRL, USB1, R, GPIO, ENET, SGPIO, UART0, 0, ND);
+LPC_P(9,6, GPIO, MCTRL, USB1, R, R, ENET, SGPIO, UART0, 0, ND);
+LPC_P(a,0, R, R, R, R, R, I2S1, CGU_OUT, R, 0, ND);
+LPC_P(a,1, GPIO, QEI, R, UART2, R, R, R, R, 0, HD);
+LPC_P(a,2, GPIO, QEI, R, UART2, R, R, R, R, 0, HD);
+LPC_P(a,3, GPIO, QEI, R, R, R, R, R, R, 0, HD);
+LPC_P(a,4, R, CTOUT, R, EMC, GPIO, R, R, R, 0, ND);
+LPC_P(b,0, R, CTOUT, LCD, R, GPIO, R, R, R, 0, ND);
+LPC_P(b,1, R, USB1, LCD, R, GPIO, CTOUT, R, R, 0, ND);
+LPC_P(b,2, R, USB1, LCD, R, GPIO, CTOUT, R, R, 0, ND);
+LPC_P(b,3, R, USB1, LCD, R, GPIO, CTOUT, R, R, 0, ND);
+LPC_P(b,4, R, USB1, LCD, R, GPIO, CTIN, R, R, 0, ND);
+LPC_P(b,5, R, USB1, LCD, R, GPIO, CTIN, LCD_ALT, R, 0, ND);
+LPC_P(b,6, R, USB1, LCD, R, GPIO, CTIN, LCD_ALT, R, ADC0|6, ND);
+LPC_P(c,0, R, USB1, R, ENET, LCD, R, R, SDMMC, ADC1|1, ND);
+LPC_P(c,1, USB1, R, UART1, ENET, GPIO, R, TIMER3, SDMMC, 0, ND);
+LPC_P(c,2, USB1, R, UART1, ENET, GPIO, R, R, SDMMC, 0, ND);
+LPC_P(c,3, USB1, R, UART1, ENET, GPIO, R, R, SDMMC, ADC1|0, ND);
+LPC_P(c,4, R, USB1, R, ENET, GPIO, R, TIMER3, SDMMC, 0, ND);
+LPC_P(c,5, R, USB1, R, ENET, GPIO, R, TIMER3, SDMMC, 0, ND);
+LPC_P(c,6, R, USB1, R, ENET, GPIO, R, TIMER3, SDMMC, 0, ND);
+LPC_P(c,7, R, USB1, R, ENET, GPIO, R, TIMER3, SDMMC, 0, ND);
+LPC_P(c,8, R, USB1, R, ENET, GPIO, R, TIMER3, SDMMC, 0, ND);
+LPC_P(c,9, R, USB1, R, ENET, GPIO, R, TIMER3, SDMMC, 0, ND);
+LPC_P(c,10, R, USB1, UART1, R, GPIO, R, TIMER3, SDMMC, 0, ND);
+LPC_P(c,11, R, USB1, UART1, R, GPIO, R, R, SDMMC, 0, ND);
+LPC_P(c,12, R, R, UART1, R, GPIO, SGPIO, I2S0_TX_SDA,SDMMC, 0, ND);
+LPC_P(c,13, R, R, UART1, R, GPIO, SGPIO, I2S0_TX_WS, SDMMC, 0, ND);
+LPC_P(c,14, R, R, UART1, R, GPIO, SGPIO, ENET, SDMMC, 0, ND);
+LPC_P(d,0, R, CTOUT, EMC, R, GPIO, R, R, SGPIO, 0, ND);
+LPC_P(d,1, R, R, EMC, R, GPIO, SDMMC, R, SGPIO, 0, ND);
+LPC_P(d,2, R, CTOUT, EMC, R, GPIO, R, R, SGPIO, 0, ND);
+LPC_P(d,3, R, CTOUT, EMC, R, GPIO, R, R, SGPIO, 0, ND);
+LPC_P(d,4, R, CTOUT, EMC, R, GPIO, R, R, SGPIO, 0, ND);
+LPC_P(d,5, R, CTOUT, EMC, R, GPIO, R, R, SGPIO, 0, ND);
+LPC_P(d,6, R, CTOUT, EMC, R, GPIO, R, R, SGPIO, 0, ND);
+LPC_P(d,7, R, CTIN, EMC, R, GPIO, R, R, SGPIO, 0, ND);
+LPC_P(d,8, R, CTIN, EMC, R, GPIO, R, R, SGPIO, 0, ND);
+LPC_P(d,9, R, CTOUT, EMC, R, GPIO, R, R, SGPIO, 0, ND);
+LPC_P(d,10, R, CTIN, EMC, R, GPIO, R, R, R, 0, ND);
+LPC_P(d,11, R, R, EMC, R, GPIO, USB1, CTOUT, R, 0, ND);
+LPC_P(d,12, R, R, EMC, R, GPIO, R, CTOUT, R, 0, ND);
+LPC_P(d,13, R, CTIN, EMC, R, GPIO, R, CTOUT, R, 0, ND);
+LPC_P(d,14, R, R, EMC, R, GPIO, R, CTOUT, R, 0, ND);
+LPC_P(d,15, R, R, EMC, R, GPIO, SDMMC, CTOUT, R, 0, ND);
+LPC_P(d,16, R, R, EMC, R, GPIO, SDMMC, CTOUT, R, 0, ND);
+LPC_P(e,0, R, R, R, EMC, GPIO, CAN1, R, R, 0, ND);
+LPC_P(e,1, R, R, R, EMC, GPIO, CAN1, R, R, 0, ND);
+LPC_P(e,2,ADCTRIG, CAN0, R, EMC, GPIO, R, R, R, 0, ND);
+LPC_P(e,3, R, CAN0,ADCTRIG, EMC, GPIO, R, R, R, 0, ND);
+LPC_P(e,4, R, NMI, R, EMC, GPIO, R, R, R, 0, ND);
+LPC_P(e,5, R, CTOUT, UART1, EMC, GPIO, R, R, R, 0, ND);
+LPC_P(e,6, R, CTOUT, UART1, EMC, GPIO, R, R, R, 0, ND);
+LPC_P(e,7, R, CTOUT, UART1, EMC, GPIO, R, R, R, 0, ND);
+LPC_P(e,8, R, CTOUT, UART1, EMC, GPIO, R, R, R, 0, ND);
+LPC_P(e,9, R, CTIN, UART1, EMC, GPIO, R, R, R, 0, ND);
+LPC_P(e,10, R, CTIN, UART1, EMC, GPIO, R, R, R, 0, ND);
+LPC_P(e,11, R, CTOUT, UART1, EMC, GPIO, R, R, R, 0, ND);
+LPC_P(e,12, R, CTOUT, UART1, EMC, GPIO, R, R, R, 0, ND);
+LPC_P(e,13, R, CTOUT, I2C1, EMC, GPIO, R, R, R, 0, ND);
+LPC_P(e,14, R, R, R, EMC, GPIO, R, R, R, 0, ND);
+LPC_P(e,15, R, CTOUT, I2C1, EMC, GPIO, R, R, R, 0, ND);
+LPC_P(f,0, SSP0, CLKIN, R, R, R, R, R, I2S1, 0, ND);
+LPC_P(f,1, R, R, SSP0, R, GPIO, R, SGPIO, R, 0, ND);
+LPC_P(f,2, R, UART3, SSP0, R, GPIO, R, SGPIO, R, 0, ND);
+LPC_P(f,3, R, UART3, SSP0, R, GPIO, R, SGPIO, R, 0, ND);
+LPC_P(f,4, SSP1, CLKIN, TRACE, R, R, R, I2S0_TX_MCLK,I2S0_RX_SCK, 0, ND);
+LPC_P(f,5, R, UART3, SSP1, TRACE, GPIO, R, SGPIO, R, ADC1|4, ND);
+LPC_P(f,6, R, UART3, SSP1, TRACE, GPIO, R, SGPIO, I2S1, ADC1|3, ND);
+LPC_P(f,7, R, UART3, SSP1, TRACE, GPIO, R, SGPIO, I2S1, ADC1|7, ND);
+LPC_P(f,8, R, UART0, CTIN, TRACE, GPIO, R, SGPIO, R, ADC0|2, ND);
+LPC_P(f,9, R, UART0, CTOUT, R, GPIO, R, SGPIO, R, ADC1|2, ND);
+LPC_P(f,10, R, UART0, R, R, GPIO, R, SDMMC, R, ADC0|5, ND);
+LPC_P(f,11, R, UART0, R, R, GPIO, R, SDMMC, R, ADC1|5, ND);
+
+/* Pin Offset FUNC0 FUNC1 FUNC2 FUNC3 FUNC4 FUNC5 FUNC6 FUNC7 ANALOG TYPE */
+LPC_N(clk0, 0xc00, EMC, CLKOUT, R, R, SDMMC, EMC_ALT, SSP1, ENET, 0, HS);
+LPC_N(clk1, 0xc04, EMC, CLKOUT, R, R, R, CGU_OUT, R, I2S1, 0, HS);
+LPC_N(clk2, 0xc08, EMC, CLKOUT, R, R, SDMMC, EMC_ALT,I2S0_TX_MCLK,I2S1, 0, HS);
+LPC_N(clk3, 0xc0c, EMC, CLKOUT, R, R, R, CGU_OUT, R, I2S1, 0, HS);
+LPC_N(usb1_dm, 0xc80, R, R, R, R, R, R, R, R, 0, USB1);
+LPC_N(usb1_dp, 0xc80, R, R, R, R, R, R, R, R, 0, USB1);
+LPC_N(i2c0_scl, 0xc84, R, R, R, R, R, R, R, R, 0, I2C0);
+LPC_N(i2c0_sda, 0xc84, R, R, R, R, R, R, R, R, 0, I2C0);
+
+#define LPC18XX_PIN_P(port, pin) { \
+ .number = 0x##port * 32 + pin, \
+ .name = "p"#port"_"#pin, \
+ .drv_data = &lpc18xx_pin_p##port##_##pin \
+}
+
+/* Pin numbers for special pins */
+enum {
+ PIN_CLK0 = 600,
+ PIN_CLK1,
+ PIN_CLK2,
+ PIN_CLK3,
+ PIN_USB1_DM,
+ PIN_USB1_DP,
+ PIN_I2C0_SCL,
+ PIN_I2C0_SDA,
+};
+
+#define LPC18XX_PIN(pname, n) { \
+ .number = n, \
+ .name = #pname, \
+ .drv_data = &lpc18xx_pin_##pname \
+}
+
+static const struct pinctrl_pin_desc lpc18xx_pins[] = {
+ LPC18XX_PIN_P(0,0),
+ LPC18XX_PIN_P(0,1),
+ LPC18XX_PIN_P(1,0),
+ LPC18XX_PIN_P(1,1),
+ LPC18XX_PIN_P(1,2),
+ LPC18XX_PIN_P(1,3),
+ LPC18XX_PIN_P(1,4),
+ LPC18XX_PIN_P(1,5),
+ LPC18XX_PIN_P(1,6),
+ LPC18XX_PIN_P(1,7),
+ LPC18XX_PIN_P(1,8),
+ LPC18XX_PIN_P(1,9),
+ LPC18XX_PIN_P(1,10),
+ LPC18XX_PIN_P(1,11),
+ LPC18XX_PIN_P(1,12),
+ LPC18XX_PIN_P(1,13),
+ LPC18XX_PIN_P(1,14),
+ LPC18XX_PIN_P(1,15),
+ LPC18XX_PIN_P(1,16),
+ LPC18XX_PIN_P(1,17),
+ LPC18XX_PIN_P(1,18),
+ LPC18XX_PIN_P(1,19),
+ LPC18XX_PIN_P(1,20),
+ LPC18XX_PIN_P(2,0),
+ LPC18XX_PIN_P(2,1),
+ LPC18XX_PIN_P(2,2),
+ LPC18XX_PIN_P(2,3),
+ LPC18XX_PIN_P(2,4),
+ LPC18XX_PIN_P(2,5),
+ LPC18XX_PIN_P(2,6),
+ LPC18XX_PIN_P(2,7),
+ LPC18XX_PIN_P(2,8),
+ LPC18XX_PIN_P(2,9),
+ LPC18XX_PIN_P(2,10),
+ LPC18XX_PIN_P(2,11),
+ LPC18XX_PIN_P(2,12),
+ LPC18XX_PIN_P(2,13),
+ LPC18XX_PIN_P(3,0),
+ LPC18XX_PIN_P(3,1),
+ LPC18XX_PIN_P(3,2),
+ LPC18XX_PIN_P(3,3),
+ LPC18XX_PIN_P(3,4),
+ LPC18XX_PIN_P(3,5),
+ LPC18XX_PIN_P(3,6),
+ LPC18XX_PIN_P(3,7),
+ LPC18XX_PIN_P(3,8),
+ LPC18XX_PIN_P(4,0),
+ LPC18XX_PIN_P(4,1),
+ LPC18XX_PIN_P(4,2),
+ LPC18XX_PIN_P(4,3),
+ LPC18XX_PIN_P(4,4),
+ LPC18XX_PIN_P(4,5),
+ LPC18XX_PIN_P(4,6),
+ LPC18XX_PIN_P(4,7),
+ LPC18XX_PIN_P(4,8),
+ LPC18XX_PIN_P(4,9),
+ LPC18XX_PIN_P(4,10),
+ LPC18XX_PIN_P(5,0),
+ LPC18XX_PIN_P(5,1),
+ LPC18XX_PIN_P(5,2),
+ LPC18XX_PIN_P(5,3),
+ LPC18XX_PIN_P(5,4),
+ LPC18XX_PIN_P(5,5),
+ LPC18XX_PIN_P(5,6),
+ LPC18XX_PIN_P(5,7),
+ LPC18XX_PIN_P(6,0),
+ LPC18XX_PIN_P(6,1),
+ LPC18XX_PIN_P(6,2),
+ LPC18XX_PIN_P(6,3),
+ LPC18XX_PIN_P(6,4),
+ LPC18XX_PIN_P(6,5),
+ LPC18XX_PIN_P(6,6),
+ LPC18XX_PIN_P(6,7),
+ LPC18XX_PIN_P(6,8),
+ LPC18XX_PIN_P(6,9),
+ LPC18XX_PIN_P(6,10),
+ LPC18XX_PIN_P(6,11),
+ LPC18XX_PIN_P(6,12),
+ LPC18XX_PIN_P(7,0),
+ LPC18XX_PIN_P(7,1),
+ LPC18XX_PIN_P(7,2),
+ LPC18XX_PIN_P(7,3),
+ LPC18XX_PIN_P(7,4),
+ LPC18XX_PIN_P(7,5),
+ LPC18XX_PIN_P(7,6),
+ LPC18XX_PIN_P(7,7),
+ LPC18XX_PIN_P(8,0),
+ LPC18XX_PIN_P(8,1),
+ LPC18XX_PIN_P(8,2),
+ LPC18XX_PIN_P(8,3),
+ LPC18XX_PIN_P(8,4),
+ LPC18XX_PIN_P(8,5),
+ LPC18XX_PIN_P(8,6),
+ LPC18XX_PIN_P(8,7),
+ LPC18XX_PIN_P(8,8),
+ LPC18XX_PIN_P(9,0),
+ LPC18XX_PIN_P(9,1),
+ LPC18XX_PIN_P(9,2),
+ LPC18XX_PIN_P(9,3),
+ LPC18XX_PIN_P(9,4),
+ LPC18XX_PIN_P(9,5),
+ LPC18XX_PIN_P(9,6),
+ LPC18XX_PIN_P(a,0),
+ LPC18XX_PIN_P(a,1),
+ LPC18XX_PIN_P(a,2),
+ LPC18XX_PIN_P(a,3),
+ LPC18XX_PIN_P(a,4),
+ LPC18XX_PIN_P(b,0),
+ LPC18XX_PIN_P(b,1),
+ LPC18XX_PIN_P(b,2),
+ LPC18XX_PIN_P(b,3),
+ LPC18XX_PIN_P(b,4),
+ LPC18XX_PIN_P(b,5),
+ LPC18XX_PIN_P(b,6),
+ LPC18XX_PIN_P(c,0),
+ LPC18XX_PIN_P(c,1),
+ LPC18XX_PIN_P(c,2),
+ LPC18XX_PIN_P(c,3),
+ LPC18XX_PIN_P(c,4),
+ LPC18XX_PIN_P(c,5),
+ LPC18XX_PIN_P(c,6),
+ LPC18XX_PIN_P(c,7),
+ LPC18XX_PIN_P(c,8),
+ LPC18XX_PIN_P(c,9),
+ LPC18XX_PIN_P(c,10),
+ LPC18XX_PIN_P(c,11),
+ LPC18XX_PIN_P(c,12),
+ LPC18XX_PIN_P(c,13),
+ LPC18XX_PIN_P(c,14),
+ LPC18XX_PIN_P(d,0),
+ LPC18XX_PIN_P(d,1),
+ LPC18XX_PIN_P(d,2),
+ LPC18XX_PIN_P(d,3),
+ LPC18XX_PIN_P(d,4),
+ LPC18XX_PIN_P(d,5),
+ LPC18XX_PIN_P(d,6),
+ LPC18XX_PIN_P(d,7),
+ LPC18XX_PIN_P(d,8),
+ LPC18XX_PIN_P(d,9),
+ LPC18XX_PIN_P(d,10),
+ LPC18XX_PIN_P(d,11),
+ LPC18XX_PIN_P(d,12),
+ LPC18XX_PIN_P(d,13),
+ LPC18XX_PIN_P(d,14),
+ LPC18XX_PIN_P(d,15),
+ LPC18XX_PIN_P(d,16),
+ LPC18XX_PIN_P(e,0),
+ LPC18XX_PIN_P(e,1),
+ LPC18XX_PIN_P(e,2),
+ LPC18XX_PIN_P(e,3),
+ LPC18XX_PIN_P(e,4),
+ LPC18XX_PIN_P(e,5),
+ LPC18XX_PIN_P(e,6),
+ LPC18XX_PIN_P(e,7),
+ LPC18XX_PIN_P(e,8),
+ LPC18XX_PIN_P(e,9),
+ LPC18XX_PIN_P(e,10),
+ LPC18XX_PIN_P(e,11),
+ LPC18XX_PIN_P(e,12),
+ LPC18XX_PIN_P(e,13),
+ LPC18XX_PIN_P(e,14),
+ LPC18XX_PIN_P(e,15),
+ LPC18XX_PIN_P(f,0),
+ LPC18XX_PIN_P(f,1),
+ LPC18XX_PIN_P(f,2),
+ LPC18XX_PIN_P(f,3),
+ LPC18XX_PIN_P(f,4),
+ LPC18XX_PIN_P(f,5),
+ LPC18XX_PIN_P(f,6),
+ LPC18XX_PIN_P(f,7),
+ LPC18XX_PIN_P(f,8),
+ LPC18XX_PIN_P(f,9),
+ LPC18XX_PIN_P(f,10),
+ LPC18XX_PIN_P(f,11),
+
+ LPC18XX_PIN(clk0, PIN_CLK0),
+ LPC18XX_PIN(clk1, PIN_CLK1),
+ LPC18XX_PIN(clk2, PIN_CLK2),
+ LPC18XX_PIN(clk3, PIN_CLK3),
+ LPC18XX_PIN(usb1_dm, PIN_USB1_DM),
+ LPC18XX_PIN(usb1_dp, PIN_USB1_DP),
+ LPC18XX_PIN(i2c0_scl, PIN_I2C0_SCL),
+ LPC18XX_PIN(i2c0_sda, PIN_I2C0_SDA),
+};
+
+static int lpc18xx_pconf_get_usb1(enum pin_config_param param, int *arg, u32 reg)
+{
+ /* TODO */
+ return -ENOTSUPP;
+}
+
+static int lpc18xx_pconf_get_i2c0(enum pin_config_param param, int *arg, u32 reg,
+ unsigned pin)
+{
+ u8 shift;
+
+ if (pin == PIN_I2C0_SCL)
+ shift = LPC18XX_SCU_I2C0_SCL_SHIFT;
+ else
+ shift = LPC18XX_SCU_I2C0_SDA_SHIFT;
+
+ switch (param) {
+ case PIN_CONFIG_INPUT_ENABLE:
+ if (reg & (LPC18XX_SCU_I2C0_EZI << shift))
+ *arg = 1;
+ else
+ return -EINVAL;
+ break;
+
+ case PIN_CONFIG_SLEW_RATE:
+ if (reg & (LPC18XX_SCU_I2C0_EHD << shift))
+ *arg = 1;
+ else
+ *arg = 0;
+ break;
+
+ case PIN_CONFIG_INPUT_SCHMITT:
+ if (reg & (LPC18XX_SCU_I2C0_EFP << shift))
+ *arg = 3;
+ else
+ *arg = 50;
+ break;
+
+ case PIN_CONFIG_INPUT_SCHMITT_ENABLE:
+ if (reg & (LPC18XX_SCU_I2C0_ZIF << shift))
+ return -EINVAL;
+ else
+ *arg = 1;
+ break;
+
+ default:
+ return -ENOTSUPP;
+ }
+
+ return 0;
+}
+
+static int lpc18xx_pconf_get_pin(enum pin_config_param param, int *arg, u32 reg,
+ struct lpc18xx_pin_caps *pin_cap)
+{
+ switch (param) {
+ case PIN_CONFIG_BIAS_DISABLE:
+ if ((!(reg & LPC18XX_SCU_PIN_EPD)) && (reg & LPC18XX_SCU_PIN_EPUN))
+ ;
+ else
+ return -EINVAL;
+ break;
+
+ case PIN_CONFIG_BIAS_PULL_UP:
+ if (reg & LPC18XX_SCU_PIN_EPUN)
+ return -EINVAL;
+ else
+ *arg = 1;
+ break;
+
+ case PIN_CONFIG_BIAS_PULL_DOWN:
+ if (reg & LPC18XX_SCU_PIN_EPD)
+ *arg = 1;
+ else
+ return -EINVAL;
+ break;
+
+ case PIN_CONFIG_INPUT_ENABLE:
+ if (reg & LPC18XX_SCU_PIN_EZI)
+ *arg = 1;
+ else
+ return -EINVAL;
+ break;
+
+ case PIN_CONFIG_SLEW_RATE:
+ if (pin_cap->type == TYPE_HD)
+ return -ENOTSUPP;
+
+ if (reg & LPC18XX_SCU_PIN_EHS)
+ *arg = 1;
+ else
+ *arg = 0;
+ break;
+
+ case PIN_CONFIG_INPUT_SCHMITT_ENABLE:
+ if (reg & LPC18XX_SCU_PIN_ZIF)
+ return -EINVAL;
+ else
+ *arg = 1;
+ break;
+
+ case PIN_CONFIG_DRIVE_STRENGTH:
+ if (pin_cap->type != TYPE_HD)
+ return -ENOTSUPP;
+
+ *arg = (reg & LPC18XX_SCU_PIN_EHD_MASK) >> LPC18XX_SCU_PIN_EHD_POS;
+ switch (*arg) {
+ case 3: *arg += 5;
+ case 2: *arg += 5;
+ case 1: *arg += 3;
+ case 0: *arg += 4;
+ }
+ break;
+
+ default:
+ return -ENOTSUPP;
+ }
+
+ return 0;
+}
+
+static int lpc18xx_pconf_get(struct pinctrl_dev *pctldev, unsigned pin,
+ unsigned long *config)
+{
+ struct lpc18xx_scu_data *scu = pinctrl_dev_get_drvdata(pctldev);
+ enum pin_config_param param = pinconf_to_config_param(*config);
+ struct lpc18xx_pin_caps *pin_cap;
+ int ret, arg = 0;
+ u32 reg;
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(lpc18xx_pins); i++) {
+ if (lpc18xx_pins[i].number == pin)
+ pin = i;
+ }
+
+ pin_cap = lpc18xx_pins[pin].drv_data;
+ reg = readl(scu->base + pin_cap->offset);
+
+ if (pin_cap->type == TYPE_I2C0)
+ ret = lpc18xx_pconf_get_i2c0(param, &arg, reg, pin);
+ else if (pin_cap->type == TYPE_USB1)
+ ret = lpc18xx_pconf_get_usb1(param, &arg, reg);
+ else
+ ret = lpc18xx_pconf_get_pin(param, &arg, reg, pin_cap);
+
+ if (ret < 0)
+ return ret;
+
+ *config = pinconf_to_config_packed(param, (u16)arg);
+
+ return 0;
+}
+
+static int lpc18xx_pconf_set_usb1(struct pinctrl_dev *pctldev,
+ enum pin_config_param param,
+ u16 param_val, u32 *reg)
+{
+ /* TODO */
+ return -ENOTSUPP;
+}
+
+static int lpc18xx_pconf_set_i2c0(struct pinctrl_dev *pctldev,
+ enum pin_config_param param,
+ u16 param_val, u32 *reg,
+ unsigned pin)
+{
+ u8 shift;
+
+ if (pin == PIN_I2C0_SCL)
+ shift = LPC18XX_SCU_I2C0_SCL_SHIFT;
+ else
+ shift = LPC18XX_SCU_I2C0_SDA_SHIFT;
+
+ switch (param) {
+ case PIN_CONFIG_INPUT_ENABLE:
+ if (param_val)
+ *reg |= (LPC18XX_SCU_I2C0_EZI << shift);
+ else
+ *reg &= ~(LPC18XX_SCU_I2C0_EZI << shift);
+ break;
+
+ case PIN_CONFIG_SLEW_RATE:
+ if (param_val)
+ *reg |= (LPC18XX_SCU_I2C0_EHD << shift);
+ else
+ *reg &= ~(LPC18XX_SCU_I2C0_EHD << shift);
+ break;
+
+ case PIN_CONFIG_INPUT_SCHMITT:
+ if (param_val == 3)
+ *reg |= (LPC18XX_SCU_I2C0_EFP << shift);
+ else if (param_val == 50)
+ *reg &= ~(LPC18XX_SCU_I2C0_EFP << shift);
+ else
+ return -ENOTSUPP;
+ break;
+
+ case PIN_CONFIG_INPUT_SCHMITT_ENABLE:
+ if (param)
+ *reg &= ~(LPC18XX_SCU_I2C0_ZIF << shift);
+ else
+ *reg |= (LPC18XX_SCU_I2C0_ZIF << shift);
+ break;
+
+ default:
+ dev_err(pctldev->dev, "Property not supported\n");
+ return -ENOTSUPP;
+ }
+
+ return 0;
+}
+
+static int lpc18xx_pconf_set_pin(struct pinctrl_dev *pctldev,
+ enum pin_config_param param,
+ u16 param_val, u32 *reg,
+ struct lpc18xx_pin_caps *pin_cap)
+{
+ switch (param) {
+ case PIN_CONFIG_BIAS_DISABLE:
+ *reg &= ~LPC18XX_SCU_PIN_EPD;
+ *reg |= LPC18XX_SCU_PIN_EPUN;
+ break;
+
+ case PIN_CONFIG_BIAS_PULL_UP:
+ *reg &= ~LPC18XX_SCU_PIN_EPUN;
+ break;
+
+ case PIN_CONFIG_BIAS_PULL_DOWN:
+ *reg |= LPC18XX_SCU_PIN_EPD;
+ break;
+
+ case PIN_CONFIG_INPUT_ENABLE:
+ if (param_val)
+ *reg |= LPC18XX_SCU_PIN_EZI;
+ else
+ *reg &= ~LPC18XX_SCU_PIN_EZI;
+ break;
+
+ case PIN_CONFIG_SLEW_RATE:
+ if (pin_cap->type == TYPE_HD) {
+ dev_err(pctldev->dev, "Slew rate unsupported on high-drive pins\n");
+ return -ENOTSUPP;
+ }
+
+ if (param_val == 0)
+ *reg &= ~LPC18XX_SCU_PIN_EHS;
+ else
+ *reg |= LPC18XX_SCU_PIN_EHS;
+ break;
+
+ case PIN_CONFIG_INPUT_SCHMITT_ENABLE:
+ if (param)
+ *reg &= ~LPC18XX_SCU_PIN_ZIF;
+ else
+ *reg |= LPC18XX_SCU_PIN_ZIF;
+ break;
+
+ case PIN_CONFIG_DRIVE_STRENGTH:
+ if (pin_cap->type != TYPE_HD) {
+ dev_err(pctldev->dev, "Drive strength available only on high-drive pins\n");
+ return -ENOTSUPP;
+ }
+ *reg &= ~LPC18XX_SCU_PIN_EHD_MASK;
+
+ switch (param_val) {
+ case 20: param_val -= 5;
+ case 14: param_val -= 5;
+ case 8: param_val -= 3;
+ case 4: param_val -= 4;
+ break;
+ default:
+ dev_err(pctldev->dev, "Drive strength %u unsupported\n", param_val);
+ return -ENOTSUPP;
+ }
+ *reg |= param_val << LPC18XX_SCU_PIN_EHD_POS;
+ break;
+
+ default:
+ dev_err(pctldev->dev, "Property not supported\n");
+ return -ENOTSUPP;
+ }
+
+ return 0;
+}
+
+static int lpc18xx_pconf_set(struct pinctrl_dev *pctldev, unsigned pin,
+ unsigned long *configs, unsigned num_configs)
+{
+ struct lpc18xx_scu_data *scu = pinctrl_dev_get_drvdata(pctldev);
+ struct lpc18xx_pin_caps *pin_cap;
+ enum pin_config_param param;
+ u16 param_val;
+ u32 reg;
+ int ret;
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(lpc18xx_pins); i++) {
+ if (lpc18xx_pins[i].number == pin)
+ break;
+ }
+
+ pin_cap = lpc18xx_pins[i].drv_data;
+ reg = readl(scu->base + pin_cap->offset);
+
+ for (i = 0; i < num_configs; i++) {
+ param = pinconf_to_config_param(configs[i]);
+ param_val = pinconf_to_config_argument(configs[i]);
+
+ if (pin_cap->type == TYPE_I2C0)
+ ret = lpc18xx_pconf_set_i2c0(pctldev, param, param_val, ®, pin);
+ else if (pin_cap->type == TYPE_USB1)
+ ret = lpc18xx_pconf_set_usb1(pctldev, param, param_val, ®);
+ else
+ ret = lpc18xx_pconf_set_pin(pctldev, param, param_val, ®, pin_cap);
+
+ if (ret)
+ return ret;
+ }
+
+ writel(reg, scu->base + pin_cap->offset);
+
+ return 0;
+}
+
+static const struct pinconf_ops lpc18xx_pconf_ops = {
+ .is_generic = true,
+ .pin_config_get = lpc18xx_pconf_get,
+ .pin_config_set = lpc18xx_pconf_set,
+};
+
+static int lpc18xx_pmx_get_funcs_count(struct pinctrl_dev *pctldev)
+{
+ return ARRAY_SIZE(lpc18xx_function_names);
+}
+
+static const char *lpc18xx_pmx_get_func_name(struct pinctrl_dev *pctldev,
+ unsigned function)
+{
+ return lpc18xx_function_names[function];
+}
+
+static int lpc18xx_pmx_get_func_groups(struct pinctrl_dev *pctldev,
+ unsigned function,
+ const char *const **groups,
+ unsigned *const num_groups)
+{
+ return 0;
+}
+
+static int lpc18xx_pmx_set(struct pinctrl_dev *pctldev, unsigned function,
+ unsigned group)
+{
+ struct lpc18xx_scu_data *scu = pinctrl_dev_get_drvdata(pctldev);
+ struct lpc18xx_pin_caps *pin = lpc18xx_pins[group].drv_data;
+ int func;
+ u32 reg;
+
+ /* Dedicated USB1 and I2C0 pins doesn't support muxing */
+ if (pin->type == TYPE_USB1) {
+ if (function == FUNC_USB1)
+ return 0;
+
+ goto fail;
+ }
+
+ if (pin->type == TYPE_I2C0) {
+ if (function == FUNC_I2C0)
+ return 0;
+
+ goto fail;
+ }
+
+ if (function == FUNC_ADC && (pin->analog & LPC18XX_ANALOG_PIN)) {
+ u32 offset;
+
+ writel(LPC18XX_SCU_ANALOG_PIN_CFG, scu->base + pin->offset);
+
+ if (LPC18XX_ANALOG_ADC(pin->analog) == 0)
+ offset = LPC18XX_SCU_REG_ENAIO0;
+ else
+ offset = LPC18XX_SCU_REG_ENAIO1;
+
+ reg = readl(scu->base + offset);
+ reg |= pin->analog & LPC18XX_ANALOG_BIT_MASK;
+ writel(reg, scu->base + offset);
+
+ return 0;
+ }
+
+ if (function == FUNC_DAC && (pin->analog & LPC18XX_ANALOG_PIN)) {
+ writel(LPC18XX_SCU_ANALOG_PIN_CFG, scu->base + pin->offset);
+
+ reg = readl(scu->base + LPC18XX_SCU_REG_ENAIO2);
+ reg |= LPC18XX_SCU_REG_ENAIO2_DAC;
+ writel(reg, scu->base + LPC18XX_SCU_REG_ENAIO2);
+
+ return 0;
+ }
+
+ for (func = 0; func < LPC18XX_SCU_FUNC_PER_PIN; func++) {
+ if (function == pin->functions[func])
+ break;
+ }
+
+ if (func >= LPC18XX_SCU_FUNC_PER_PIN)
+ goto fail;
+
+ reg = readl(scu->base + pin->offset);
+ reg &= ~LPC18XX_SCU_PIN_MODE_MASK;
+ writel(reg | func, scu->base + pin->offset);
+
+ return 0;
+fail:
+ dev_err(pctldev->dev, "Pin %s can't be %s\n", lpc18xx_pins[group].name,
+ lpc18xx_function_names[function]);
+ return -EINVAL;
+}
+
+static const struct pinmux_ops lpc18xx_pmx_ops = {
+ .get_functions_count = lpc18xx_pmx_get_funcs_count,
+ .get_function_name = lpc18xx_pmx_get_func_name,
+ .get_function_groups = lpc18xx_pmx_get_func_groups,
+ .set_mux = lpc18xx_pmx_set,
+};
+
+static int lpc18xx_pctl_get_groups_count(struct pinctrl_dev *pctldev)
+{
+ return ARRAY_SIZE(lpc18xx_pins);
+}
+
+static const char *lpc18xx_pctl_get_group_name(struct pinctrl_dev *pctldev,
+ unsigned group)
+{
+ return lpc18xx_pins[group].name;
+}
+
+static int lpc18xx_pctl_get_group_pins(struct pinctrl_dev *pctldev,
+ unsigned group,
+ const unsigned **pins,
+ unsigned *num_pins)
+{
+ *pins = &lpc18xx_pins[group].number;
+ *num_pins = 1;
+
+ return 0;
+}
+
+static const struct pinctrl_ops lpc18xx_pctl_ops = {
+ .get_groups_count = lpc18xx_pctl_get_groups_count,
+ .get_group_name = lpc18xx_pctl_get_group_name,
+ .get_group_pins = lpc18xx_pctl_get_group_pins,
+ .dt_node_to_map = pinconf_generic_dt_node_to_map_pin,
+ .dt_free_map = pinctrl_utils_dt_free_map,
+};
+
+static struct pinctrl_desc lpc18xx_scu_desc = {
+ .name = "lpc18xx/43xx-scu",
+ .pins = lpc18xx_pins,
+ .npins = ARRAY_SIZE(lpc18xx_pins),
+ .pctlops = &lpc18xx_pctl_ops,
+ .pmxops = &lpc18xx_pmx_ops,
+ .confops = &lpc18xx_pconf_ops,
+ .owner = THIS_MODULE,
+};
+
+static int lpc18xx_scu_probe(struct platform_device *pdev)
+{
+ struct lpc18xx_scu_data *scu;
+ struct resource *res;
+ int ret;
+
+ scu = devm_kzalloc(&pdev->dev, sizeof(*scu), GFP_KERNEL);
+ if (!scu)
+ return -ENOMEM;
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ scu->base = devm_ioremap_resource(&pdev->dev, res);
+ if (IS_ERR(scu->base))
+ return PTR_ERR(scu->base);
+
+ scu->clk = devm_clk_get(&pdev->dev, NULL);
+ if (IS_ERR(scu->clk)) {
+ dev_err(&pdev->dev, "Input clock not found.\n");
+ return PTR_ERR(scu->clk);
+ }
+
+ ret = clk_prepare_enable(scu->clk);
+ if (ret) {
+ dev_err(&pdev->dev, "Unable to enable clock.\n");
+ return ret;
+ }
+
+ platform_set_drvdata(pdev, scu);
+
+ scu->pctl = pinctrl_register(&lpc18xx_scu_desc, &pdev->dev, scu);
+ if (!scu->pctl) {
+ dev_err(&pdev->dev, "Could not register pinctrl driver\n");
+ clk_disable_unprepare(scu->clk);
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static int lpc18xx_scu_remove(struct platform_device *pdev)
+{
+ struct lpc18xx_scu_data *scu = platform_get_drvdata(pdev);
+
+ pinctrl_unregister(scu->pctl);
+ clk_disable_unprepare(scu->clk);
+
+ return 0;
+}
+
+static const struct of_device_id lpc18xx_scu_match[] = {
+ { .compatible = "nxp,lpc1850-scu" },
+ {},
+};
+MODULE_DEVICE_TABLE(of, lpc18xx_scu_match);
+
+static struct platform_driver lpc18xx_scu_driver = {
+ .probe = lpc18xx_scu_probe,
+ .remove = lpc18xx_scu_remove,
+ .driver = {
+ .name = "lpc18xx-scu",
+ .of_match_table = lpc18xx_scu_match,
+ },
+};
+module_platform_driver(lpc18xx_scu_driver);
+
+MODULE_AUTHOR("Joachim Eastwood <manabian at gmail.com>");
+MODULE_DESCRIPTION("Pinctrl driver for NXP LPC18xx/43xx SCU");
+MODULE_LICENSE("GPL v2");
--
1.8.0
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