unused).
- gpio-controller: Marks the device node as a GPIO controller.
+optional properties:
+- #gpio-lines: Number of gpio if absent 32.
+
+
Example:
pioA: gpio@fffff200 {
compatible = "atmel,at91rm9200-gpio";
interrupts = <2 4>;
#gpio-cells = <2>;
gpio-controller;
+ #gpio-lines = <19>;
};
--- /dev/null
+* Atmel AT91 Pinmux Controller
+
+The AT91 Pinmux Controler, enables the IC
+to share one PAD to several functional blocks. The sharing is done by
+multiplexing the PAD input/output signals. For each PAD there are up to
+8 muxing options (called periph modes). Since different modules require
+different PAD settings (like pull up, keeper, etc) the contoller controls
+also the PAD settings parameters.
+
+Please refer to pinctrl-bindings.txt in this directory for details of the
+common pinctrl bindings used by client devices, including the meaning of the
+phrase "pin configuration node".
+
+Atmel AT91 pin configuration node is a node of a group of pins which can be
+used for a specific device or function. This node represents both mux and config
+of the pins in that group. The 'pins' selects the function mode(also named pin
+mode) this pin can work on and the 'config' configures various pad settings
+such as pull-up, multi drive, etc.
+
+Required properties for iomux controller:
+- compatible: "atmel,at91rm9200-pinctrl"
+- atmel,mux-mask: array of mask (periph per bank) to describe if a pin can be
+ configured in this periph mode. All the periph and bank need to be describe.
+
+How to create such array:
+
+Each column will represent the possible peripheral of the pinctrl
+Each line will represent a pio bank
+
+Take an example on the 9260
+Peripheral: 2 ( A and B)
+Bank: 3 (A, B and C)
+=>
+
+ /* A B */
+ 0xffffffff 0xffc00c3b /* pioA */
+ 0xffffffff 0x7fff3ccf /* pioB */
+ 0xffffffff 0x007fffff /* pioC */
+
+For each peripheral/bank we will descibe in a u32 if a pin can can be
+configured in it by putting 1 to the pin bit (1 << pin)
+
+Let's take the pioA on peripheral B
+From the datasheet Table 10-2.
+Peripheral B
+PA0 MCDB0
+PA1 MCCDB
+PA2
+PA3 MCDB3
+PA4 MCDB2
+PA5 MCDB1
+PA6
+PA7
+PA8
+PA9
+PA10 ETX2
+PA11 ETX3
+PA12
+PA13
+PA14
+PA15
+PA16
+PA17
+PA18
+PA19
+PA20
+PA21
+PA22 ETXER
+PA23 ETX2
+PA24 ETX3
+PA25 ERX2
+PA26 ERX3
+PA27 ERXCK
+PA28 ECRS
+PA29 ECOL
+PA30 RXD4
+PA31 TXD4
+
+=> 0xffc00c3b
+
+Required properties for pin configuration node:
+- atmel,pins: 4 integers array, represents a group of pins mux and config
+ setting. The format is atmel,pins = <PIN_BANK PIN_BANK_NUM PERIPH CONFIG>.
+ The PERIPH 0 means gpio.
+
+Bits used for CONFIG:
+PULL_UP(1 << 0): indicate this pin need a pull up.
+MULTIDRIVE(1 << 1): indicate this pin need to be configured as multidrive.
+
+NOTE:
+Some requirements for using atmel,at91rm9200-pinctrl binding:
+1. We have pin function node defined under at91 controller node to represent
+ what pinmux functions this SoC supports.
+2. The driver can use the function node's name and pin configuration node's
+ name describe the pin function and group hierarchy.
+ For example, Linux at91 pinctrl driver takes the function node's name
+ as the function name and pin configuration node's name as group name to
+ create the map table.
+3. Each pin configuration node should have a phandle, devices can set pins
+ configurations by referring to the phandle of that pin configuration node.
+4. The gpio controller must be describe in the pinctrl simple-bus.
+
+Examples:
+
+pinctrl@fffff400 {
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges;
+ compatible = "atmel,at91rm9200-pinctrl", "simple-bus";
+ reg = <0xfffff400 0x600>;
+
+ atmel,mux-mask = <
+ /* A B */
+ 0xffffffff 0xffc00c3b /* pioA */
+ 0xffffffff 0x7fff3ccf /* pioB */
+ 0xffffffff 0x007fffff /* pioC */
+ >;
+
+ /* shared pinctrl settings */
+ dbgu {
+ pinctrl_dbgu: dbgu-0 {
+ atmel,pins =
+ <1 14 0x1 0x0 /* PB14 periph A */
+ 1 15 0x1 0x1>; /* PB15 periph with pullup */
+ };
+ };
+};
+
+dbgu: serial@fffff200 {
+ compatible = "atmel,at91sam9260-usart";
+ reg = <0xfffff200 0x200>;
+ interrupts = <1 4 7>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_dbgu>;
+ status = "disabled";
+};
F: drivers/pinctrl/
F: include/linux/pinctrl/
+PIN CONTROLLER - ATMEL AT91
+M: Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com>
+L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
+S: Maintained
+F: drivers/pinctrl/pinctrl-at91.c
+
PIN CONTROLLER - ST SPEAR
M: Viresh Kumar <viresh.linux@gmail.com>
L: spear-devel@list.st.com
select IRQ_DOMAIN
select NEED_MACH_GPIO_H
select NEED_MACH_IO_H if PCCARD
+ select PINCTRL
+ select PINCTRL_AT91 if USE_OF
help
This enables support for systems based on Atmel
AT91RM9200 and AT91SAM9* processors.
ifeq ($(CONFIG_OF),y)
-dtb-$(CONFIG_ARCH_AT91) += aks-cdu.dtb \
- at91sam9263ek.dtb \
- at91sam9g20ek_2mmc.dtb \
- at91sam9g20ek.dtb \
- at91sam9g25ek.dtb \
- at91sam9m10g45ek.dtb \
- at91sam9n12ek.dtb \
- ethernut5.dtb \
- evk-pro3.dtb \
- kizbox.dtb \
- tny_a9260.dtb \
- tny_a9263.dtb \
- tny_a9g20.dtb \
- usb_a9260.dtb \
- usb_a9263.dtb \
- usb_a9g20.dtb
+# Keep at91 dtb files sorted alphabetically for each SoC
+# sam9260
+dtb-$(CONFIG_ARCH_AT91) += aks-cdu.dtb
+dtb-$(CONFIG_ARCH_AT91) += ethernut5.dtb
+dtb-$(CONFIG_ARCH_AT91) += evk-pro3.dtb
+dtb-$(CONFIG_ARCH_AT91) += tny_a9260.dtb
+dtb-$(CONFIG_ARCH_AT91) += usb_a9260.dtb
+# sam9263
+dtb-$(CONFIG_ARCH_AT91) += at91sam9263ek.dtb
+dtb-$(CONFIG_ARCH_AT91) += tny_a9263.dtb
+dtb-$(CONFIG_ARCH_AT91) += usb_a9263.dtb
+# sam9g20
+dtb-$(CONFIG_ARCH_AT91) += at91sam9g20ek.dtb
+dtb-$(CONFIG_ARCH_AT91) += at91sam9g20ek_2mmc.dtb
+dtb-$(CONFIG_ARCH_AT91) += kizbox.dtb
+dtb-$(CONFIG_ARCH_AT91) += tny_a9g20.dtb
+dtb-$(CONFIG_ARCH_AT91) += usb_a9g20.dtb
+# sam9g45
+dtb-$(CONFIG_ARCH_AT91) += at91sam9m10g45ek.dtb
+# sam9n12
+dtb-$(CONFIG_ARCH_AT91) += at91sam9n12ek.dtb
+# sam9x5
+dtb-$(CONFIG_ARCH_AT91) += at91sam9g15ek.dtb
+dtb-$(CONFIG_ARCH_AT91) += at91sam9g25ek.dtb
+dtb-$(CONFIG_ARCH_AT91) += at91sam9g35ek.dtb
+dtb-$(CONFIG_ARCH_AT91) += at91sam9x25ek.dtb
+dtb-$(CONFIG_ARCH_AT91) += at91sam9x35ek.dtb
+
dtb-$(CONFIG_ARCH_BCM2835) += bcm2835-rpi-b.dtb
dtb-$(CONFIG_ARCH_DOVE) += dove-cm-a510.dtb \
dove-cubox.dtb \
interrupts = <26 4 0 27 4 0 28 4 0>;
};
- pioA: gpio@fffff400 {
- compatible = "atmel,at91rm9200-gpio";
- reg = <0xfffff400 0x100>;
- interrupts = <2 4 1>;
- #gpio-cells = <2>;
- gpio-controller;
- interrupt-controller;
- #interrupt-cells = <2>;
- };
+ pinctrl@fffff400 {
+ #address-cells = <1>;
+ #size-cells = <1>;
+ compatible = "atmel,at91rm9200-pinctrl", "simple-bus";
+ ranges = <0xfffff400 0xfffff400 0x600>;
+
+ atmel,mux-mask = <
+ /* A B */
+ 0xffffffff 0xffc00c3b /* pioA */
+ 0xffffffff 0x7fff3ccf /* pioB */
+ 0xffffffff 0x007fffff /* pioC */
+ >;
+
+ /* shared pinctrl settings */
+ dbgu {
+ pinctrl_dbgu: dbgu-0 {
+ atmel,pins =
+ <1 14 0x1 0x0 /* PB14 periph A */
+ 1 15 0x1 0x1>; /* PB15 periph with pullup */
+ };
+ };
- pioB: gpio@fffff600 {
- compatible = "atmel,at91rm9200-gpio";
- reg = <0xfffff600 0x100>;
- interrupts = <3 4 1>;
- #gpio-cells = <2>;
- gpio-controller;
- interrupt-controller;
- #interrupt-cells = <2>;
- };
+ uart0 {
+ pinctrl_uart0: uart0-0 {
+ atmel,pins =
+ <1 4 0x1 0x0 /* PB4 periph A */
+ 1 5 0x1 0x0>; /* PB5 periph A */
+ };
+
+ pinctrl_uart0_rts_cts: uart0_rts_cts-0 {
+ atmel,pins =
+ <1 26 0x1 0x0 /* PB26 periph A */
+ 1 27 0x1 0x0>; /* PB27 periph A */
+ };
+
+ pinctrl_uart0_dtr_dsr: uart0_dtr_dsr-0 {
+ atmel,pins =
+ <1 24 0x1 0x0 /* PB24 periph A */
+ 1 22 0x1 0x0>; /* PB22 periph A */
+ };
+
+ pinctrl_uart0_dcd: uart0_dcd-0 {
+ atmel,pins =
+ <1 23 0x1 0x0>; /* PB23 periph A */
+ };
+
+ pinctrl_uart0_ri: uart0_ri-0 {
+ atmel,pins =
+ <1 25 0x1 0x0>; /* PB25 periph A */
+ };
+ };
- pioC: gpio@fffff800 {
- compatible = "atmel,at91rm9200-gpio";
- reg = <0xfffff800 0x100>;
- interrupts = <4 4 1>;
- #gpio-cells = <2>;
- gpio-controller;
- interrupt-controller;
- #interrupt-cells = <2>;
+ uart1 {
+ pinctrl_uart1: uart1-0 {
+ atmel,pins =
+ <2 6 0x1 0x1 /* PB6 periph A with pullup */
+ 2 7 0x1 0x0>; /* PB7 periph A */
+ };
+
+ pinctrl_uart1_rts_cts: uart1_rts_cts-0 {
+ atmel,pins =
+ <1 28 0x1 0x0 /* PB28 periph A */
+ 1 29 0x1 0x0>; /* PB29 periph A */
+ };
+ };
+
+ uart2 {
+ pinctrl_uart2: uart2-0 {
+ atmel,pins =
+ <1 8 0x1 0x1 /* PB8 periph A with pullup */
+ 1 9 0x1 0x0>; /* PB9 periph A */
+ };
+
+ pinctrl_uart2_rts_cts: uart2_rts_cts-0 {
+ atmel,pins =
+ <0 4 0x1 0x0 /* PA4 periph A */
+ 0 5 0x1 0x0>; /* PA5 periph A */
+ };
+ };
+
+ uart3 {
+ pinctrl_uart3: uart3-0 {
+ atmel,pins =
+ <2 10 0x1 0x1 /* PB10 periph A with pullup */
+ 2 11 0x1 0x0>; /* PB11 periph A */
+ };
+
+ pinctrl_uart3_rts_cts: uart3_rts_cts-0 {
+ atmel,pins =
+ <3 8 0x2 0x0 /* PB8 periph B */
+ 3 10 0x2 0x0>; /* PB10 periph B */
+ };
+ };
+
+ uart4 {
+ pinctrl_uart4: uart4-0 {
+ atmel,pins =
+ <0 31 0x2 0x1 /* PA31 periph B with pullup */
+ 0 30 0x2 0x0>; /* PA30 periph B */
+ };
+ };
+
+ uart5 {
+ pinctrl_uart5: uart5-0 {
+ atmel,pins =
+ <2 12 0x1 0x1 /* PB12 periph A with pullup */
+ 2 13 0x1 0x0>; /* PB13 periph A */
+ };
+ };
+
+ nand {
+ pinctrl_nand: nand-0 {
+ atmel,pins =
+ <2 13 0x0 0x1 /* PC13 gpio RDY pin pull_up */
+ 2 14 0x0 0x1>; /* PC14 gpio enable pin pull_up */
+ };
+ };
+
+ pioA: gpio@fffff400 {
+ compatible = "atmel,at91rm9200-gpio";
+ reg = <0xfffff400 0x200>;
+ interrupts = <2 4 1>;
+ #gpio-cells = <2>;
+ gpio-controller;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ };
+
+ pioB: gpio@fffff600 {
+ compatible = "atmel,at91rm9200-gpio";
+ reg = <0xfffff600 0x200>;
+ interrupts = <3 4 1>;
+ #gpio-cells = <2>;
+ gpio-controller;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ };
+
+ pioC: gpio@fffff800 {
+ compatible = "atmel,at91rm9200-gpio";
+ reg = <0xfffff800 0x200>;
+ interrupts = <4 4 1>;
+ #gpio-cells = <2>;
+ gpio-controller;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ };
};
dbgu: serial@fffff200 {
compatible = "atmel,at91sam9260-usart";
reg = <0xfffff200 0x200>;
interrupts = <1 4 7>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_dbgu>;
status = "disabled";
};
interrupts = <6 4 5>;
atmel,use-dma-rx;
atmel,use-dma-tx;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_uart0>;
status = "disabled";
};
interrupts = <7 4 5>;
atmel,use-dma-rx;
atmel,use-dma-tx;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_uart1>;
status = "disabled";
};
interrupts = <8 4 5>;
atmel,use-dma-rx;
atmel,use-dma-tx;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_uart2>;
status = "disabled";
};
interrupts = <23 4 5>;
atmel,use-dma-rx;
atmel,use-dma-tx;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_uart3>;
status = "disabled";
};
interrupts = <24 4 5>;
atmel,use-dma-rx;
atmel,use-dma-tx;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_uart4>;
status = "disabled";
};
interrupts = <25 4 5>;
atmel,use-dma-rx;
atmel,use-dma-tx;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_uart5>;
status = "disabled";
};
>;
atmel,nand-addr-offset = <21>;
atmel,nand-cmd-offset = <22>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_nand>;
gpios = <&pioC 13 0
&pioC 14 0
0
reg = <0xfffffd10 0x10>;
};
- pioA: gpio@fffff200 {
- compatible = "atmel,at91rm9200-gpio";
- reg = <0xfffff200 0x100>;
- interrupts = <2 4 1>;
- #gpio-cells = <2>;
- gpio-controller;
- interrupt-controller;
- #interrupt-cells = <2>;
- };
+ pinctrl@fffff200 {
+ #address-cells = <1>;
+ #size-cells = <1>;
+ compatible = "atmel,at91rm9200-pinctrl", "simple-bus";
+ ranges = <0xfffff200 0xfffff200 0xa00>;
- pioB: gpio@fffff400 {
- compatible = "atmel,at91rm9200-gpio";
- reg = <0xfffff400 0x100>;
- interrupts = <3 4 1>;
- #gpio-cells = <2>;
- gpio-controller;
- interrupt-controller;
- #interrupt-cells = <2>;
- };
+ atmel,mux-mask = <
+ /* A B */
+ 0xfffffffb 0xffffe07f /* pioA */
+ 0x0007ffff 0x39072fff /* pioB */
+ 0xffffffff 0x3ffffff8 /* pioC */
+ 0xfffffbff 0xffffffff /* pioD */
+ 0xffe00fff 0xfbfcff00 /* pioE */
+ >;
- pioC: gpio@fffff600 {
- compatible = "atmel,at91rm9200-gpio";
- reg = <0xfffff600 0x100>;
- interrupts = <4 4 1>;
- #gpio-cells = <2>;
- gpio-controller;
- interrupt-controller;
- #interrupt-cells = <2>;
- };
+ /* shared pinctrl settings */
+ dbgu {
+ pinctrl_dbgu: dbgu-0 {
+ atmel,pins =
+ <2 30 0x1 0x0 /* PC30 periph A */
+ 2 31 0x1 0x1>; /* PC31 periph with pullup */
+ };
+ };
- pioD: gpio@fffff800 {
- compatible = "atmel,at91rm9200-gpio";
- reg = <0xfffff800 0x100>;
- interrupts = <4 4 1>;
- #gpio-cells = <2>;
- gpio-controller;
- interrupt-controller;
- #interrupt-cells = <2>;
- };
+ uart0 {
+ pinctrl_uart0: uart0-0 {
+ atmel,pins =
+ <0 26 0x1 0x1 /* PA26 periph A with pullup */
+ 0 27 0x1 0x0>; /* PA27 periph A */
+ };
- pioE: gpio@fffffa00 {
- compatible = "atmel,at91rm9200-gpio";
- reg = <0xfffffa00 0x100>;
- interrupts = <4 4 1>;
- #gpio-cells = <2>;
- gpio-controller;
- interrupt-controller;
- #interrupt-cells = <2>;
+ pinctrl_uart0_rts_cts: uart0_rts_cts-0 {
+ atmel,pins =
+ <0 28 0x1 0x0 /* PA28 periph A */
+ 0 29 0x1 0x0>; /* PA29 periph A */
+ };
+ };
+
+ uart1 {
+ pinctrl_uart1: uart1-0 {
+ atmel,pins =
+ <3 0 0x1 0x1 /* PD0 periph A with pullup */
+ 3 1 0x1 0x0>; /* PD1 periph A */
+ };
+
+ pinctrl_uart1_rts_cts: uart1_rts_cts-0 {
+ atmel,pins =
+ <3 7 0x2 0x0 /* PD7 periph B */
+ 3 8 0x2 0x0>; /* PD8 periph B */
+ };
+ };
+
+ uart2 {
+ pinctrl_uart2: uart2-0 {
+ atmel,pins =
+ <3 2 0x1 0x1 /* PD2 periph A with pullup */
+ 3 3 0x1 0x0>; /* PD3 periph A */
+ };
+
+ pinctrl_uart2_rts_cts: uart2_rts_cts-0 {
+ atmel,pins =
+ <3 5 0x2 0x0 /* PD5 periph B */
+ 4 6 0x2 0x0>; /* PD6 periph B */
+ };
+ };
+
+ nand {
+ pinctrl_nand: nand-0 {
+ atmel,pins =
+ <0 22 0x0 0x1 /* PA22 gpio RDY pin pull_up*/
+ 3 15 0x0 0x1>; /* PD15 gpio enable pin pull_up */
+ };
+ };
+
+ pioA: gpio@fffff200 {
+ compatible = "atmel,at91rm9200-gpio";
+ reg = <0xfffff200 0x200>;
+ interrupts = <2 4 1>;
+ #gpio-cells = <2>;
+ gpio-controller;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ };
+
+ pioB: gpio@fffff400 {
+ compatible = "atmel,at91rm9200-gpio";
+ reg = <0xfffff400 0x200>;
+ interrupts = <3 4 1>;
+ #gpio-cells = <2>;
+ gpio-controller;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ };
+
+ pioC: gpio@fffff600 {
+ compatible = "atmel,at91rm9200-gpio";
+ reg = <0xfffff600 0x200>;
+ interrupts = <4 4 1>;
+ #gpio-cells = <2>;
+ gpio-controller;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ };
+
+ pioD: gpio@fffff800 {
+ compatible = "atmel,at91rm9200-gpio";
+ reg = <0xfffff800 0x200>;
+ interrupts = <4 4 1>;
+ #gpio-cells = <2>;
+ gpio-controller;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ };
+
+ pioE: gpio@fffffa00 {
+ compatible = "atmel,at91rm9200-gpio";
+ reg = <0xfffffa00 0x200>;
+ interrupts = <4 4 1>;
+ #gpio-cells = <2>;
+ gpio-controller;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ };
};
dbgu: serial@ffffee00 {
compatible = "atmel,at91sam9260-usart";
reg = <0xffffee00 0x200>;
interrupts = <1 4 7>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_dbgu>;
status = "disabled";
};
interrupts = <7 4 5>;
atmel,use-dma-rx;
atmel,use-dma-tx;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_uart0>;
status = "disabled";
};
interrupts = <8 4 5>;
atmel,use-dma-rx;
atmel,use-dma-tx;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_uart1>;
status = "disabled";
};
interrupts = <9 4 5>;
atmel,use-dma-rx;
atmel,use-dma-tx;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_uart2>;
status = "disabled";
};
>;
atmel,nand-addr-offset = <21>;
atmel,nand-cmd-offset = <22>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_nand>;
gpios = <&pioA 22 0
&pioD 15 0
0
};
usart0: serial@fff8c000 {
+ pinctrl-0 = <&pinctrl_uart0 &pinctrl_uart0_rts_cts>;
status = "okay";
};
--- /dev/null
+/*
+ * at91sam9g15.dtsi - Device Tree Include file for AT91SAM9G15 SoC
+ *
+ * Copyright (C) 2012 Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
+ *
+ * Licensed under GPLv2.
+ */
+
+/include/ "at91sam9x5.dtsi"
+
+/ {
+ model = "Atmel AT91SAM9G15 SoC";
+ compatible = "atmel, at91sam9g15, atmel,at91sam9x5";
+
+ ahb {
+ apb {
+ pinctrl@fffff400 {
+ atmel,mux-mask = <
+ /* A B C */
+ 0xffffffff 0xffe0399f 0x00000000 /* pioA */
+ 0x00040000 0x00047e3f 0x00000000 /* pioB */
+ 0xfdffffff 0x00000000 0xb83fffff /* pioC */
+ 0x003fffff 0x003f8000 0x00000000 /* pioD */
+ >;
+ };
+ };
+ };
+};
--- /dev/null
+/*
+ * at91sam9g15ek.dts - Device Tree file for AT91SAM9G15-EK board
+ *
+ * Copyright (C) 2012 Atmel,
+ * 2012 Nicolas Ferre <nicolas.ferre@atmel.com>
+ *
+ * Licensed under GPLv2 or later.
+ */
+/dts-v1/;
+/include/ "at91sam9g15.dtsi"
+/include/ "at91sam9x5ek.dtsi"
+
+/ {
+ model = "Atmel AT91SAM9G25-EK";
+ compatible = "atmel,at91sam9g15ek", "atmel,at91sam9x5ek", "atmel,at91sam9x5", "atmel,at91sam9";
+};
};
usart0: serial@fffb0000 {
+ pinctrl-0 =
+ <&pinctrl_uart0
+ &pinctrl_uart0_rts_cts
+ &pinctrl_uart0_dtr_dsr
+ &pinctrl_uart0_dcd
+ &pinctrl_uart0_ri>;
status = "okay";
};
--- /dev/null
+/*
+ * at91sam9g25.dtsi - Device Tree Include file for AT91SAM9G25 SoC
+ *
+ * Copyright (C) 2012 Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
+ *
+ * Licensed under GPLv2.
+ */
+
+/include/ "at91sam9x5.dtsi"
+
+/ {
+ model = "Atmel AT91SAM9G25 SoC";
+ compatible = "atmel, at91sam9g25, atmel,at91sam9x5";
+
+ ahb {
+ apb {
+ pinctrl@fffff400 {
+ atmel,mux-mask = <
+ /* A B C */
+ 0xffffffff 0xffe0399f 0xc000001c /* pioA */
+ 0x0007ffff 0x8000fe3f 0x00000000 /* pioB */
+ 0x80000000 0x07c0ffff 0xb83fffff /* pioC */
+ 0x003fffff 0x003f8000 0x00000000 /* pioD */
+ >;
+ };
+ };
+ };
+};
* Licensed under GPLv2 or later.
*/
/dts-v1/;
-/include/ "at91sam9x5.dtsi"
-/include/ "at91sam9x5cm.dtsi"
+/include/ "at91sam9g25.dtsi"
+/include/ "at91sam9x5ek.dtsi"
/ {
model = "Atmel AT91SAM9G25-EK";
compatible = "atmel,at91sam9g25ek", "atmel,at91sam9x5ek", "atmel,at91sam9x5", "atmel,at91sam9";
-
- chosen {
- bootargs = "console=ttyS0,115200 root=/dev/mtdblock1 rw rootfstype=ubifs ubi.mtd=1 root=ubi0:rootfs";
- };
-
- ahb {
- apb {
- dbgu: serial@fffff200 {
- status = "okay";
- };
-
- usart0: serial@f801c000 {
- status = "okay";
- };
-
- macb0: ethernet@f802c000 {
- phy-mode = "rmii";
- status = "okay";
- };
-
- i2c0: i2c@f8010000 {
- status = "okay";
- };
-
- i2c1: i2c@f8014000 {
- status = "okay";
- };
-
- i2c2: i2c@f8018000 {
- status = "okay";
- };
- };
-
- usb0: ohci@00600000 {
- status = "okay";
- num-ports = <2>;
- atmel,vbus-gpio = <&pioD 19 1
- &pioD 20 1
- >;
- };
-
- usb1: ehci@00700000 {
- status = "okay";
- };
- };
};
--- /dev/null
+/*
+ * at91sam9g35.dtsi - Device Tree Include file for AT91SAM9G35 SoC
+ *
+ * Copyright (C) 2012 Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
+ *
+ * Licensed under GPLv2.
+ */
+
+/include/ "at91sam9x5.dtsi"
+
+/ {
+ model = "Atmel AT91SAM9G35 SoC";
+ compatible = "atmel, at91sam9g35, atmel,at91sam9x5";
+
+ ahb {
+ apb {
+ pinctrl@fffff400 {
+ atmel,mux-mask = <
+ /* A B C */
+ 0xffffffff 0xffe0399f 0xc000000c /* pioA */
+ 0x000406ff 0x00047e3f 0x00000000 /* pioB */
+ 0xfdffffff 0x00000000 0xb83fffff /* pioC */
+ 0x003fffff 0x003f8000 0x00000000 /* pioD */
+ >;
+ };
+ };
+ };
+};
--- /dev/null
+/*
+ * at91sam9g35ek.dts - Device Tree file for AT91SAM9G35-EK board
+ *
+ * Copyright (C) 2012 Atmel,
+ * 2012 Nicolas Ferre <nicolas.ferre@atmel.com>
+ *
+ * Licensed under GPLv2 or later.
+ */
+/dts-v1/;
+/include/ "at91sam9g35.dtsi"
+/include/ "at91sam9x5ek.dtsi"
+
+/ {
+ model = "Atmel AT91SAM9G35-EK";
+ compatible = "atmel,at91sam9g35ek", "atmel,at91sam9x5ek", "atmel,at91sam9x5", "atmel,at91sam9";
+};
interrupts = <21 4 0>;
};
- pioA: gpio@fffff200 {
- compatible = "atmel,at91rm9200-gpio";
- reg = <0xfffff200 0x100>;
- interrupts = <2 4 1>;
- #gpio-cells = <2>;
- gpio-controller;
- interrupt-controller;
- #interrupt-cells = <2>;
- };
+ pinctrl@fffff200 {
+ #address-cells = <1>;
+ #size-cells = <1>;
+ compatible = "atmel,at91rm9200-pinctrl", "simple-bus";
+ ranges = <0xfffff200 0xfffff200 0xa00>;
+
+ atmel,mux-mask = <
+ /* A B */
+ 0xffffffff 0xffc003ff /* pioA */
+ 0xffffffff 0x800f8f00 /* pioB */
+ 0xffffffff 0x00000e00 /* pioC */
+ 0xffffffff 0xff0c1381 /* pioD */
+ 0xffffffff 0x81ffff81 /* pioE */
+ >;
+
+ /* shared pinctrl settings */
+ dbgu {
+ pinctrl_dbgu: dbgu-0 {
+ atmel,pins =
+ <1 12 0x1 0x0 /* PB12 periph A */
+ 1 13 0x1 0x0>; /* PB13 periph A */
+ };
+ };
- pioB: gpio@fffff400 {
- compatible = "atmel,at91rm9200-gpio";
- reg = <0xfffff400 0x100>;
- interrupts = <3 4 1>;
- #gpio-cells = <2>;
- gpio-controller;
- interrupt-controller;
- #interrupt-cells = <2>;
- };
+ uart0 {
+ pinctrl_uart0: uart0-0 {
+ atmel,pins =
+ <1 19 0x1 0x1 /* PB19 periph A with pullup */
+ 1 18 0x1 0x0>; /* PB18 periph A */
+ };
+
+ pinctrl_uart0_rts_cts: uart0_rts_cts-0 {
+ atmel,pins =
+ <1 17 0x2 0x0 /* PB17 periph B */
+ 1 15 0x2 0x0>; /* PB15 periph B */
+ };
+ };
- pioC: gpio@fffff600 {
- compatible = "atmel,at91rm9200-gpio";
- reg = <0xfffff600 0x100>;
- interrupts = <4 4 1>;
- #gpio-cells = <2>;
- gpio-controller;
- interrupt-controller;
- #interrupt-cells = <2>;
- };
+ uart1 {
+ pinctrl_uart1: uart1-0 {
+ atmel,pins =
+ <1 4 0x1 0x1 /* PB4 periph A with pullup */
+ 1 5 0x1 0x0>; /* PB5 periph A */
+ };
+
+ pinctrl_uart1_rts_cts: uart1_rts_cts-0 {
+ atmel,pins =
+ <3 16 0x1 0x0 /* PD16 periph A */
+ 3 17 0x1 0x0>; /* PD17 periph A */
+ };
+ };
- pioD: gpio@fffff800 {
- compatible = "atmel,at91rm9200-gpio";
- reg = <0xfffff800 0x100>;
- interrupts = <5 4 1>;
- #gpio-cells = <2>;
- gpio-controller;
- interrupt-controller;
- #interrupt-cells = <2>;
- };
+ uart2 {
+ pinctrl_uart2: uart2-0 {
+ atmel,pins =
+ <1 6 0x1 0x1 /* PB6 periph A with pullup */
+ 1 7 0x1 0x0>; /* PB7 periph A */
+ };
+
+ pinctrl_uart2_rts_cts: uart2_rts_cts-0 {
+ atmel,pins =
+ <2 9 0x2 0x0 /* PC9 periph B */
+ 2 11 0x2 0x0>; /* PC11 periph B */
+ };
+ };
- pioE: gpio@fffffa00 {
- compatible = "atmel,at91rm9200-gpio";
- reg = <0xfffffa00 0x100>;
- interrupts = <5 4 1>;
- #gpio-cells = <2>;
- gpio-controller;
- interrupt-controller;
- #interrupt-cells = <2>;
+ uart3 {
+ pinctrl_uart3: uart3-0 {
+ atmel,pins =
+ <1 8 0x1 0x1 /* PB9 periph A with pullup */
+ 1 9 0x1 0x0>; /* PB8 periph A */
+ };
+
+ pinctrl_uart3_rts_cts: uart3_rts_cts-0 {
+ atmel,pins =
+ <0 23 0x2 0x0 /* PA23 periph B */
+ 0 24 0x2 0x0>; /* PA24 periph B */
+ };
+ };
+
+ nand {
+ pinctrl_nand: nand-0 {
+ atmel,pins =
+ <2 8 0x0 0x1 /* PC8 gpio RDY pin pull_up*/
+ 2 14 0x0 0x1>; /* PC14 gpio enable pin pull_up */
+ };
+ };
+
+ pioA: gpio@fffff200 {
+ compatible = "atmel,at91rm9200-gpio";
+ reg = <0xfffff200 0x200>;
+ interrupts = <2 4 1>;
+ #gpio-cells = <2>;
+ gpio-controller;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ };
+
+ pioB: gpio@fffff400 {
+ compatible = "atmel,at91rm9200-gpio";
+ reg = <0xfffff400 0x200>;
+ interrupts = <3 4 1>;
+ #gpio-cells = <2>;
+ gpio-controller;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ };
+
+ pioC: gpio@fffff600 {
+ compatible = "atmel,at91rm9200-gpio";
+ reg = <0xfffff600 0x200>;
+ interrupts = <4 4 1>;
+ #gpio-cells = <2>;
+ gpio-controller;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ };
+
+ pioD: gpio@fffff800 {
+ compatible = "atmel,at91rm9200-gpio";
+ reg = <0xfffff800 0x200>;
+ interrupts = <5 4 1>;
+ #gpio-cells = <2>;
+ gpio-controller;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ };
+
+ pioE: gpio@fffffa00 {
+ compatible = "atmel,at91rm9200-gpio";
+ reg = <0xfffffa00 0x200>;
+ interrupts = <5 4 1>;
+ #gpio-cells = <2>;
+ gpio-controller;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ };
};
dbgu: serial@ffffee00 {
compatible = "atmel,at91sam9260-usart";
reg = <0xffffee00 0x200>;
interrupts = <1 4 7>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_dbgu>;
status = "disabled";
};
interrupts = <7 4 5>;
atmel,use-dma-rx;
atmel,use-dma-tx;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_uart0>;
status = "disabled";
};
interrupts = <8 4 5>;
atmel,use-dma-rx;
atmel,use-dma-tx;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_uart1>;
status = "disabled";
};
interrupts = <9 4 5>;
atmel,use-dma-rx;
atmel,use-dma-tx;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_uart2>;
status = "disabled";
};
interrupts = <10 4 5>;
atmel,use-dma-rx;
atmel,use-dma-tx;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_uart3>;
status = "disabled";
};
>;
atmel,nand-addr-offset = <21>;
atmel,nand-cmd-offset = <22>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_nand>;
gpios = <&pioC 8 0
&pioC 14 0
0
};
usart1: serial@fff90000 {
+ pinctrl-0 = <&pinctrl_uart0 &pinctrl_uart1_rts_cts>;
status = "okay";
};
interrupts = <20 4 0>;
};
- pioA: gpio@fffff400 {
- compatible = "atmel,at91sam9x5-gpio", "atmel,at91rm9200-gpio";
- reg = <0xfffff400 0x100>;
- interrupts = <2 4 1>;
- #gpio-cells = <2>;
- gpio-controller;
- interrupt-controller;
- #interrupt-cells = <2>;
- };
+ pinctrl@fffff400 {
+ #address-cells = <1>;
+ #size-cells = <1>;
+ compatible = "atmel,at91sam9x5-pinctrl", "atmel,at91rm9200-pinctrl", "simple-bus";
+ ranges = <0xfffff400 0xfffff400 0x800>;
- pioB: gpio@fffff600 {
- compatible = "atmel,at91sam9x5-gpio", "atmel,at91rm9200-gpio";
- reg = <0xfffff600 0x100>;
- interrupts = <2 4 1>;
- #gpio-cells = <2>;
- gpio-controller;
- interrupt-controller;
- #interrupt-cells = <2>;
- };
+ atmel,mux-mask = <
+ /* A B C */
+ 0xffffffff 0xffe07983 0x00000000 /* pioA */
+ 0x00040000 0x00047e0f 0x00000000 /* pioB */
+ 0xfdffffff 0x07c00000 0xb83fffff /* pioC */
+ 0x003fffff 0x003f8000 0x00000000 /* pioD */
+ >;
- pioC: gpio@fffff800 {
- compatible = "atmel,at91sam9x5-gpio", "atmel,at91rm9200-gpio";
- reg = <0xfffff800 0x100>;
- interrupts = <3 4 1>;
- #gpio-cells = <2>;
- gpio-controller;
- interrupt-controller;
- #interrupt-cells = <2>;
- };
+ /* shared pinctrl settings */
+ dbgu {
+ pinctrl_dbgu: dbgu-0 {
+ atmel,pins =
+ <0 9 0x1 0x0 /* PA9 periph A */
+ 0 10 0x1 0x1>; /* PA10 periph with pullup */
+ };
+ };
- pioD: gpio@fffffa00 {
- compatible = "atmel,at91sam9x5-gpio", "atmel,at91rm9200-gpio";
- reg = <0xfffffa00 0x100>;
- interrupts = <3 4 1>;
- #gpio-cells = <2>;
- gpio-controller;
- interrupt-controller;
- #interrupt-cells = <2>;
+ uart0 {
+ pinctrl_uart0: uart0-0 {
+ atmel,pins =
+ <0 1 0x1 0x1 /* PA1 periph A with pullup */
+ 0 0 0x1 0x0>; /* PA0 periph A */
+ };
+
+ pinctrl_uart0_rts_cts: uart0_rts_cts-0 {
+ atmel,pins =
+ <0 2 0x1 0x0 /* PA2 periph A */
+ 0 3 0x1 0x0>; /* PA3 periph A */
+ };
+ };
+
+ uart1 {
+ pinctrl_uart1: uart1-0 {
+ atmel,pins =
+ <0 6 0x1 0x1 /* PA6 periph A with pullup */
+ 0 5 0x1 0x0>; /* PA5 periph A */
+ };
+ };
+
+ uart2 {
+ pinctrl_uart2: uart2-0 {
+ atmel,pins =
+ <0 8 0x1 0x1 /* PA8 periph A with pullup */
+ 0 7 0x1 0x0>; /* PA7 periph A */
+ };
+
+ pinctrl_uart2_rts_cts: uart2_rts_cts-0 {
+ atmel,pins =
+ <1 0 0x2 0x0 /* PB0 periph B */
+ 1 1 0x2 0x0>; /* PB1 periph B */
+ };
+ };
+
+ uart3 {
+ pinctrl_uart3: uart3-0 {
+ atmel,pins =
+ <2 23 0x2 0x1 /* PC23 periph B with pullup */
+ 2 22 0x2 0x0>; /* PC22 periph B */
+ };
+
+ pinctrl_uart3_rts_cts: uart3_rts_cts-0 {
+ atmel,pins =
+ <2 24 0x2 0x0 /* PC24 periph B */
+ 2 25 0x2 0x0>; /* PC25 periph B */
+ };
+ };
+
+ usart0 {
+ pinctrl_usart0: usart0-0 {
+ atmel,pins =
+ <2 9 0x3 0x1 /* PC9 periph C with pullup */
+ 2 8 0x3 0x0>; /* PC8 periph C */
+ };
+ };
+
+ usart1 {
+ pinctrl_usart1: usart1-0 {
+ atmel,pins =
+ <2 16 0x3 0x1 /* PC17 periph C with pullup */
+ 2 17 0x3 0x0>; /* PC16 periph C */
+ };
+ };
+
+ nand {
+ pinctrl_nand: nand-0 {
+ atmel,pins =
+ <3 5 0x0 0x1 /* PD5 gpio RDY pin pull_up*/
+ 3 4 0x0 0x1>; /* PD4 gpio enable pin pull_up */
+ };
+ };
+
+ pioA: gpio@fffff400 {
+ compatible = "atmel,at91sam9x5-gpio", "atmel,at91rm9200-gpio";
+ reg = <0xfffff400 0x200>;
+ interrupts = <2 4 1>;
+ #gpio-cells = <2>;
+ gpio-controller;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ };
+
+ pioB: gpio@fffff600 {
+ compatible = "atmel,at91sam9x5-gpio", "atmel,at91rm9200-gpio";
+ reg = <0xfffff600 0x200>;
+ interrupts = <2 4 1>;
+ #gpio-cells = <2>;
+ gpio-controller;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ };
+
+ pioC: gpio@fffff800 {
+ compatible = "atmel,at91sam9x5-gpio", "atmel,at91rm9200-gpio";
+ reg = <0xfffff800 0x200>;
+ interrupts = <3 4 1>;
+ #gpio-cells = <2>;
+ gpio-controller;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ };
+
+ pioD: gpio@fffffa00 {
+ compatible = "atmel,at91sam9x5-gpio", "atmel,at91rm9200-gpio";
+ reg = <0xfffffa00 0x200>;
+ interrupts = <3 4 1>;
+ #gpio-cells = <2>;
+ gpio-controller;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ };
};
dbgu: serial@fffff200 {
compatible = "atmel,at91sam9260-usart";
reg = <0xfffff200 0x200>;
interrupts = <1 4 7>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_dbgu>;
status = "disabled";
};
interrupts = <5 4 5>;
atmel,use-dma-rx;
atmel,use-dma-tx;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_uart0>;
status = "disabled";
};
interrupts = <6 4 5>;
atmel,use-dma-rx;
atmel,use-dma-tx;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_uart1>;
status = "disabled";
};
interrupts = <7 4 5>;
atmel,use-dma-rx;
atmel,use-dma-tx;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_uart2>;
status = "disabled";
};
interrupts = <8 4 5>;
atmel,use-dma-rx;
atmel,use-dma-tx;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_uart3>;
status = "disabled";
};
>;
atmel,nand-addr-offset = <21>;
atmel,nand-cmd-offset = <22>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_nand>;
gpios = <&pioD 5 0
&pioD 4 0
0
--- /dev/null
+/*
+ * at91sam9x25.dtsi - Device Tree Include file for AT91SAM9X25 SoC
+ *
+ * Copyright (C) 2012 Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
+ *
+ * Licensed under GPLv2.
+ */
+
+/include/ "at91sam9x5.dtsi"
+
+/ {
+ model = "Atmel AT91SAM9X25 SoC";
+ compatible = "atmel, at91sam9x25, atmel,at91sam9x5";
+
+ ahb {
+ apb {
+ pinctrl@fffff400 {
+ atmel,mux-mask = <
+ /* A B C */
+ 0xffffffff 0xffe03fff 0xc000001c /* pioA */
+ 0x0007ffff 0x00047e3f 0x00000000 /* pioB */
+ 0x80000000 0xfffd0000 0xb83fffff /* pioC */
+ 0x003fffff 0x003f8000 0x00000000 /* pioD */
+ >;
+ };
+ };
+ };
+};
--- /dev/null
+/*
+ * at91sam9x25ek.dts - Device Tree file for AT91SAM9X25-EK board
+ *
+ * Copyright (C) 2012 Atmel,
+ * 2012 Nicolas Ferre <nicolas.ferre@atmel.com>
+ *
+ * Licensed under GPLv2 or later.
+ */
+/dts-v1/;
+/include/ "at91sam9x25.dtsi"
+/include/ "at91sam9x5ek.dtsi"
+
+/ {
+ model = "Atmel AT91SAM9G25-EK";
+ compatible = "atmel,at91sam9x25ek", "atmel,at91sam9x5ek", "atmel,at91sam9x5", "atmel,at91sam9";
+};
--- /dev/null
+/*
+ * at91sam9x35.dtsi - Device Tree Include file for AT91SAM9X35 SoC
+ *
+ * Copyright (C) 2012 Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
+ *
+ * Licensed under GPLv2.
+ */
+
+/include/ "at91sam9x5.dtsi"
+
+/ {
+ model = "Atmel AT91SAM9X35 SoC";
+ compatible = "atmel, at91sam9x35, atmel,at91sam9x5";
+
+ ahb {
+ apb {
+ pinctrl@fffff400 {
+ atmel,mux-mask = <
+ /* A B C */
+ 0xffffffff 0xffe03fff 0xc000000c /* pioA */
+ 0x000406ff 0x00047e3f 0x00000000 /* pioB */
+ 0xfdffffff 0x00000000 0xb83fffff /* pioC */
+ 0x003fffff 0x003f8000 0x00000000 /* pioD */
+ >;
+ };
+ };
+ };
+};
--- /dev/null
+/*
+ * at91sam9x35ek.dts - Device Tree file for AT91SAM9X35-EK board
+ *
+ * Copyright (C) 2012 Atmel,
+ * 2012 Nicolas Ferre <nicolas.ferre@atmel.com>
+ *
+ * Licensed under GPLv2 or later.
+ */
+/dts-v1/;
+/include/ "at91sam9x35.dtsi"
+/include/ "at91sam9x5ek.dtsi"
+
+/ {
+ model = "Atmel AT91SAM9X35-EK";
+ compatible = "atmel,at91sam9x35ek", "atmel,at91sam9x5ek", "atmel,at91sam9x5", "atmel,at91sam9";
+};
interrupts = <21 4 0>;
};
- pioA: gpio@fffff400 {
- compatible = "atmel,at91sam9x5-gpio", "atmel,at91rm9200-gpio";
- reg = <0xfffff400 0x100>;
- interrupts = <2 4 1>;
- #gpio-cells = <2>;
- gpio-controller;
- interrupt-controller;
- #interrupt-cells = <2>;
- };
+ pinctrl@fffff400 {
+ #address-cells = <1>;
+ #size-cells = <1>;
+ compatible = "atmel,at91sam9x5-pinctrl", "atmel,at91rm9200-pinctrl", "simple-bus";
+ ranges = <0xfffff400 0xfffff400 0x800>;
+
+ /* shared pinctrl settings */
+ dbgu {
+ pinctrl_dbgu: dbgu-0 {
+ atmel,pins =
+ <0 9 0x1 0x0 /* PA9 periph A */
+ 0 10 0x1 0x1>; /* PA10 periph A with pullup */
+ };
+ };
- pioB: gpio@fffff600 {
- compatible = "atmel,at91sam9x5-gpio", "atmel,at91rm9200-gpio";
- reg = <0xfffff600 0x100>;
- interrupts = <2 4 1>;
- #gpio-cells = <2>;
- gpio-controller;
- interrupt-controller;
- #interrupt-cells = <2>;
- };
+ uart0 {
+ pinctrl_uart0: uart0-0 {
+ atmel,pins =
+ <0 0 0x1 0x1 /* PA0 periph A with pullup */
+ 0 1 0x1 0x0>; /* PA1 periph A */
+ };
+
+ pinctrl_uart0_rts_cts: uart0_rts_cts-0 {
+ atmel,pins =
+ <0 2 0x1 0x0 /* PA2 periph A */
+ 0 3 0x1 0x0>; /* PA3 periph A */
+ };
+ };
- pioC: gpio@fffff800 {
- compatible = "atmel,at91sam9x5-gpio", "atmel,at91rm9200-gpio";
- reg = <0xfffff800 0x100>;
- interrupts = <3 4 1>;
- #gpio-cells = <2>;
- gpio-controller;
- interrupt-controller;
- #interrupt-cells = <2>;
- };
+ uart1 {
+ pinctrl_uart1: uart1-0 {
+ atmel,pins =
+ <0 5 0x1 0x1 /* PA5 periph A with pullup */
+ 0 6 0x1 0x0>; /* PA6 periph A */
+ };
+
+ pinctrl_uart1_rts_cts: uart1_rts_cts-0 {
+ atmel,pins =
+ <3 27 0x3 0x0 /* PC27 periph C */
+ 3 28 0x3 0x0>; /* PC28 periph C */
+ };
+ };
- pioD: gpio@fffffa00 {
- compatible = "atmel,at91sam9x5-gpio", "atmel,at91rm9200-gpio";
- reg = <0xfffffa00 0x100>;
- interrupts = <3 4 1>;
- #gpio-cells = <2>;
- gpio-controller;
- interrupt-controller;
- #interrupt-cells = <2>;
+ uart2 {
+ pinctrl_uart2: uart2-0 {
+ atmel,pins =
+ <0 7 0x1 0x1 /* PA7 periph A with pullup */
+ 0 8 0x1 0x0>; /* PA8 periph A */
+ };
+
+ pinctrl_uart2_rts_cts: uart2_rts_cts-0 {
+ atmel,pins =
+ <0 0 0x2 0x0 /* PB0 periph B */
+ 0 1 0x2 0x0>; /* PB1 periph B */
+ };
+ };
+
+ uart3 {
+ pinctrl_uart3: uart3-0 {
+ atmel,pins =
+ <3 23 0x2 0x1 /* PC22 periph B with pullup */
+ 3 23 0x2 0x0>; /* PC23 periph B */
+ };
+
+ pinctrl_uart3_rts_cts: uart3_rts_cts-0 {
+ atmel,pins =
+ <3 24 0x2 0x0 /* PC24 periph B */
+ 3 25 0x2 0x0>; /* PC25 periph B */
+ };
+ };
+
+ usart0 {
+ pinctrl_usart0: usart0-0 {
+ atmel,pins =
+ <3 8 0x3 0x0 /* PC8 periph C */
+ 3 9 0x3 0x1>; /* PC9 periph C with pullup */
+ };
+ };
+
+ usart1 {
+ pinctrl_usart1: usart1-0 {
+ atmel,pins =
+ <3 16 0x3 0x0 /* PC16 periph C */
+ 3 17 0x3 0x1>; /* PC17 periph C with pullup */
+ };
+ };
+
+ nand {
+ pinctrl_nand: nand-0 {
+ atmel,pins =
+ <3 4 0x0 0x1 /* PD5 gpio RDY pin pull_up */
+ 3 5 0x0 0x1>; /* PD4 gpio enable pin pull_up */
+ };
+ };
+
+ pioA: gpio@fffff400 {
+ compatible = "atmel,at91sam9x5-gpio", "atmel,at91rm9200-gpio";
+ reg = <0xfffff400 0x200>;
+ interrupts = <2 4 1>;
+ #gpio-cells = <2>;
+ gpio-controller;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ };
+
+ pioB: gpio@fffff600 {
+ compatible = "atmel,at91sam9x5-gpio", "atmel,at91rm9200-gpio";
+ reg = <0xfffff600 0x200>;
+ interrupts = <2 4 1>;
+ #gpio-cells = <2>;
+ gpio-controller;
+ #gpio-lines = <19>;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ };
+
+ pioC: gpio@fffff800 {
+ compatible = "atmel,at91sam9x5-gpio", "atmel,at91rm9200-gpio";
+ reg = <0xfffff800 0x200>;
+ interrupts = <3 4 1>;
+ #gpio-cells = <2>;
+ gpio-controller;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ };
+
+ pioD: gpio@fffffa00 {
+ compatible = "atmel,at91sam9x5-gpio", "atmel,at91rm9200-gpio";
+ reg = <0xfffffa00 0x200>;
+ interrupts = <3 4 1>;
+ #gpio-cells = <2>;
+ gpio-controller;
+ #gpio-lines = <22>;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ };
};
dbgu: serial@fffff200 {
compatible = "atmel,at91sam9260-usart";
reg = <0xfffff200 0x200>;
interrupts = <1 4 7>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_dbgu>;
status = "disabled";
};
interrupts = <5 4 5>;
atmel,use-dma-rx;
atmel,use-dma-tx;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_uart0>;
status = "disabled";
};
interrupts = <6 4 5>;
atmel,use-dma-rx;
atmel,use-dma-tx;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_uart1>;
status = "disabled";
};
interrupts = <7 4 5>;
atmel,use-dma-rx;
atmel,use-dma-tx;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_uart2>;
status = "disabled";
};
>;
atmel,nand-addr-offset = <21>;
atmel,nand-cmd-offset = <22>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_nand>;
gpios = <&pioD 5 0
&pioD 4 0
0
--- /dev/null
+/*
+ * at91sam9x5ek.dtsi - Device Tree file for AT91SAM9x5CM Base board
+ *
+ * Copyright (C) 2012 Atmel,
+ * 2012 Nicolas Ferre <nicolas.ferre@atmel.com>
+ *
+ * Licensed under GPLv2 or later.
+ */
+/include/ "at91sam9x5cm.dtsi"
+
+/ {
+ model = "Atmel AT91SAM9X5-EK";
+ compatible = "atmel,at91sam9x5ek", "atmel,at91sam9x5", "atmel,at91sam9";
+
+ chosen {
+ bootargs = "128M console=ttyS0,115200 root=/dev/mtdblock1 rw rootfstype=ubifs ubi.mtd=1 root=ubi0:rootfs";
+ };
+
+ ahb {
+ apb {
+ dbgu: serial@fffff200 {
+ status = "okay";
+ };
+
+ usart0: serial@f801c000 {
+ status = "okay";
+ };
+
+ macb0: ethernet@f802c000 {
+ phy-mode = "rmii";
+ status = "okay";
+ };
+
+ i2c0: i2c@f8010000 {
+ status = "okay";
+ };
+
+ i2c1: i2c@f8014000 {
+ status = "okay";
+ };
+
+ i2c2: i2c@f8018000 {
+ status = "okay";
+ };
+ };
+
+ usb0: ohci@00600000 {
+ status = "okay";
+ num-ports = <2>;
+ atmel,vbus-gpio = <&pioD 19 1
+ &pioD 20 1
+ >;
+ };
+
+ usb1: ehci@00700000 {
+ status = "okay";
+ };
+ };
+};
CONFIG_I2C_GPIO=y
CONFIG_SPI=y
CONFIG_SPI_ATMEL=y
+CONFIG_PINCTRL_AT91=y
# CONFIG_HWMON is not set
CONFIG_WATCHDOG=y
CONFIG_AT91SAM9X_WATCHDOG=y
0 /* Advanced Interrupt Controller (IRQ6) */
};
-struct at91_init_soc __initdata at91rm9200_soc = {
+AT91_SOC_START(rm9200)
.map_io = at91rm9200_map_io,
.default_irq_priority = at91rm9200_default_irq_priority,
.ioremap_registers = at91rm9200_ioremap_registers,
.register_clocks = at91rm9200_register_clocks,
.init = at91rm9200_initialize,
-};
+AT91_SOC_END
CLKDEV_CON_ID("pioA", &pioA_clk),
CLKDEV_CON_ID("pioB", &pioB_clk),
CLKDEV_CON_ID("pioC", &pioC_clk),
+ CLKDEV_CON_DEV_ID(NULL, "fffff400.gpio", &pioA_clk),
+ CLKDEV_CON_DEV_ID(NULL, "fffff600.gpio", &pioB_clk),
+ CLKDEV_CON_DEV_ID(NULL, "fffff800.gpio", &pioC_clk),
};
static struct clk_lookup usart_clocks_lookups[] = {
0, /* Advanced Interrupt Controller */
};
-struct at91_init_soc __initdata at91sam9260_soc = {
+AT91_SOC_START(sam9260)
.map_io = at91sam9260_map_io,
.default_irq_priority = at91sam9260_default_irq_priority,
.ioremap_registers = at91sam9260_ioremap_registers,
.register_clocks = at91sam9260_register_clocks,
.init = at91sam9260_initialize,
-};
+AT91_SOC_END
0, /* Advanced Interrupt Controller */
};
-struct at91_init_soc __initdata at91sam9261_soc = {
+AT91_SOC_START(sam9261)
.map_io = at91sam9261_map_io,
.default_irq_priority = at91sam9261_default_irq_priority,
.ioremap_registers = at91sam9261_ioremap_registers,
.register_clocks = at91sam9261_register_clocks,
.init = at91sam9261_initialize,
-};
+AT91_SOC_END
CLKDEV_CON_DEV_ID("spi_clk", "fffa4000.spi", &spi0_clk),
CLKDEV_CON_DEV_ID("spi_clk", "fffa8000.spi", &spi1_clk),
CLKDEV_CON_DEV_ID(NULL, "fff88000.i2c", &twi_clk),
+ CLKDEV_CON_DEV_ID(NULL, "fffff200.gpio", &pioA_clk),
+ CLKDEV_CON_DEV_ID(NULL, "fffff400.gpio", &pioB_clk),
+ CLKDEV_CON_DEV_ID(NULL, "fffff600.gpio", &pioCDE_clk),
+ CLKDEV_CON_DEV_ID(NULL, "fffff800.gpio", &pioCDE_clk),
+ CLKDEV_CON_DEV_ID(NULL, "fffffa00.gpio", &pioCDE_clk),
};
static struct clk_lookup usart_clocks_lookups[] = {
0, /* Advanced Interrupt Controller (IRQ1) */
};
-struct at91_init_soc __initdata at91sam9263_soc = {
+AT91_SOC_START(sam9263)
.map_io = at91sam9263_map_io,
.default_irq_priority = at91sam9263_default_irq_priority,
.ioremap_registers = at91sam9263_ioremap_registers,
.register_clocks = at91sam9263_register_clocks,
.init = at91sam9263_initialize,
-};
+AT91_SOC_END
CLKDEV_CON_DEV_ID(NULL, "fff88000.i2c", &twi1_clk),
/* fake hclk clock */
CLKDEV_CON_DEV_ID("hclk", "at91_ohci", &uhphs_clk),
+ CLKDEV_CON_DEV_ID(NULL, "fffff200.gpio", &pioA_clk),
+ CLKDEV_CON_DEV_ID(NULL, "fffff400.gpio", &pioB_clk),
+ CLKDEV_CON_DEV_ID(NULL, "fffff600.gpio", &pioC_clk),
+ CLKDEV_CON_DEV_ID(NULL, "fffff800.gpio", &pioDE_clk),
+ CLKDEV_CON_DEV_ID(NULL, "fffffa00.gpio", &pioDE_clk),
+
CLKDEV_CON_ID("pioA", &pioA_clk),
CLKDEV_CON_ID("pioB", &pioB_clk),
CLKDEV_CON_ID("pioC", &pioC_clk),
0, /* Advanced Interrupt Controller (IRQ0) */
};
-struct at91_init_soc __initdata at91sam9g45_soc = {
+AT91_SOC_START(sam9g45)
.map_io = at91sam9g45_map_io,
.default_irq_priority = at91sam9g45_default_irq_priority,
.ioremap_registers = at91sam9g45_ioremap_registers,
.register_clocks = at91sam9g45_register_clocks,
.init = at91sam9g45_initialize,
-};
+AT91_SOC_END
CLKDEV_CON_DEV_ID("dma_clk", "ffffec00.dma-controller", &dma_clk),
CLKDEV_CON_DEV_ID(NULL, "f8010000.i2c", &twi0_clk),
CLKDEV_CON_DEV_ID(NULL, "f8014000.i2c", &twi1_clk),
- CLKDEV_CON_ID("pioA", &pioAB_clk),
- CLKDEV_CON_ID("pioB", &pioAB_clk),
- CLKDEV_CON_ID("pioC", &pioCD_clk),
- CLKDEV_CON_ID("pioD", &pioCD_clk),
+ CLKDEV_CON_DEV_ID(NULL, "fffff400.gpio", &pioAB_clk),
+ CLKDEV_CON_DEV_ID(NULL, "fffff600.gpio", &pioAB_clk),
+ CLKDEV_CON_DEV_ID(NULL, "fffff800.gpio", &pioCD_clk),
+ CLKDEV_CON_DEV_ID(NULL, "fffffa00.gpio", &pioCD_clk),
/* additional fake clock for macb_hclk */
CLKDEV_CON_DEV_ID("hclk", "500000.ohci", &uhp_clk),
CLKDEV_CON_DEV_ID("ohci_clk", "500000.ohci", &uhp_clk),
void __init at91sam9n12_initialize(void)
{
at91_extern_irq = (1 << AT91SAM9N12_ID_IRQ0);
-
- /* Register GPIO subsystem (using DT) */
- at91_gpio_init(NULL, 0);
}
-struct at91_init_soc __initdata at91sam9n12_soc = {
+AT91_SOC_START(sam9n12)
.map_io = at91sam9n12_map_io,
.register_clocks = at91sam9n12_register_clocks,
.init = at91sam9n12_initialize,
-};
+AT91_SOC_END
0, /* Advanced Interrupt Controller */
};
-struct at91_init_soc __initdata at91sam9rl_soc = {
+AT91_SOC_START(sam9rl)
.map_io = at91sam9rl_map_io,
.default_irq_priority = at91sam9rl_default_irq_priority,
.ioremap_registers = at91sam9rl_ioremap_registers,
.register_clocks = at91sam9rl_register_clocks,
.init = at91sam9rl_initialize,
-};
+AT91_SOC_END
CLKDEV_CON_DEV_ID(NULL, "f8010000.i2c", &twi0_clk),
CLKDEV_CON_DEV_ID(NULL, "f8014000.i2c", &twi1_clk),
CLKDEV_CON_DEV_ID(NULL, "f8018000.i2c", &twi2_clk),
- CLKDEV_CON_ID("pioA", &pioAB_clk),
- CLKDEV_CON_ID("pioB", &pioAB_clk),
- CLKDEV_CON_ID("pioC", &pioCD_clk),
- CLKDEV_CON_ID("pioD", &pioCD_clk),
+ CLKDEV_CON_DEV_ID(NULL, "fffff400.gpio", &pioAB_clk),
+ CLKDEV_CON_DEV_ID(NULL, "fffff600.gpio", &pioAB_clk),
+ CLKDEV_CON_DEV_ID(NULL, "fffff800.gpio", &pioCD_clk),
+ CLKDEV_CON_DEV_ID(NULL, "fffffa00.gpio", &pioCD_clk),
/* additional fake clock for macb_hclk */
CLKDEV_CON_DEV_ID("hclk", "f802c000.ethernet", &macb0_clk),
CLKDEV_CON_DEV_ID("hclk", "f8030000.ethernet", &macb1_clk),
at91_init_sram(0, AT91SAM9X5_SRAM_BASE, AT91SAM9X5_SRAM_SIZE);
}
-void __init at91sam9x5_initialize(void)
-{
- /* Register GPIO subsystem (using DT) */
- at91_gpio_init(NULL, 0);
-}
-
/* --------------------------------------------------------------------
* Interrupt initialization
* -------------------------------------------------------------------- */
-struct at91_init_soc __initdata at91sam9x5_soc = {
+AT91_SOC_START(sam9x5)
.map_io = at91sam9x5_map_io,
.register_clocks = at91sam9x5_register_clocks,
- .init = at91sam9x5_initialize,
-};
+AT91_SOC_END
static const struct of_device_id irq_of_match[] __initconst = {
{ .compatible = "atmel,at91rm9200-aic", .data = at91_aic_of_init },
- { .compatible = "atmel,at91rm9200-gpio", .data = at91_gpio_of_irq_setup },
- { .compatible = "atmel,at91sam9x5-gpio", .data = at91_gpio_of_irq_setup },
{ /*sentinel*/ }
};
#include <linux/io.h>
#include <linux/irqdomain.h>
#include <linux/of_address.h>
-#include <linux/of_irq.h>
-#include <linux/of_gpio.h>
#include <asm/mach/irq.h>
#include "generic.h"
+#define MAX_NB_GPIO_PER_BANK 32
+
struct at91_gpio_chip {
struct gpio_chip chip;
struct at91_gpio_chip *next; /* Bank sharing same clock */
#define to_at91_gpio_chip(c) container_of(c, struct at91_gpio_chip, chip)
+static int at91_gpiolib_request(struct gpio_chip *chip, unsigned offset);
static void at91_gpiolib_dbg_show(struct seq_file *s, struct gpio_chip *chip);
static void at91_gpiolib_set(struct gpio_chip *chip, unsigned offset, int val);
static int at91_gpiolib_get(struct gpio_chip *chip, unsigned offset);
unsigned offset);
static int at91_gpiolib_to_irq(struct gpio_chip *chip, unsigned offset);
-#define AT91_GPIO_CHIP(name, nr_gpio) \
+#define AT91_GPIO_CHIP(name) \
{ \
.chip = { \
.label = name, \
+ .request = at91_gpiolib_request, \
.direction_input = at91_gpiolib_direction_input, \
.direction_output = at91_gpiolib_direction_output, \
.get = at91_gpiolib_get, \
.set = at91_gpiolib_set, \
.dbg_show = at91_gpiolib_dbg_show, \
.to_irq = at91_gpiolib_to_irq, \
- .ngpio = nr_gpio, \
+ .ngpio = MAX_NB_GPIO_PER_BANK, \
}, \
}
static struct at91_gpio_chip gpio_chip[] = {
- AT91_GPIO_CHIP("pioA", 32),
- AT91_GPIO_CHIP("pioB", 32),
- AT91_GPIO_CHIP("pioC", 32),
- AT91_GPIO_CHIP("pioD", 32),
- AT91_GPIO_CHIP("pioE", 32),
+ AT91_GPIO_CHIP("pioA"),
+ AT91_GPIO_CHIP("pioB"),
+ AT91_GPIO_CHIP("pioC"),
+ AT91_GPIO_CHIP("pioD"),
+ AT91_GPIO_CHIP("pioE"),
};
static int gpio_banks;
static inline void __iomem *pin_to_controller(unsigned pin)
{
- pin /= 32;
+ pin /= MAX_NB_GPIO_PER_BANK;
if (likely(pin < gpio_banks))
return gpio_chip[pin].regbase;
static inline unsigned pin_to_mask(unsigned pin)
{
- return 1 << (pin % 32);
+ return 1 << (pin % MAX_NB_GPIO_PER_BANK);
}
*/
static struct lock_class_key gpio_lock_class;
-#if defined(CONFIG_OF)
-static int at91_gpio_irq_map(struct irq_domain *h, unsigned int virq,
- irq_hw_number_t hw)
-{
- struct at91_gpio_chip *at91_gpio = h->host_data;
-
- irq_set_lockdep_class(virq, &gpio_lock_class);
-
- /*
- * Can use the "simple" and not "edge" handler since it's
- * shorter, and the AIC handles interrupts sanely.
- */
- irq_set_chip_and_handler(virq, &gpio_irqchip,
- handle_simple_irq);
- set_irq_flags(virq, IRQF_VALID);
- irq_set_chip_data(virq, at91_gpio);
-
- return 0;
-}
-
-static struct irq_domain_ops at91_gpio_ops = {
- .map = at91_gpio_irq_map,
- .xlate = irq_domain_xlate_twocell,
-};
-
-int __init at91_gpio_of_irq_setup(struct device_node *node,
- struct device_node *parent)
-{
- struct at91_gpio_chip *prev = NULL;
- int alias_idx = of_alias_get_id(node, "gpio");
- struct at91_gpio_chip *at91_gpio = &gpio_chip[alias_idx];
-
- /* Setup proper .irq_set_type function */
- if (has_pio3())
- gpio_irqchip.irq_set_type = alt_gpio_irq_type;
- else
- gpio_irqchip.irq_set_type = gpio_irq_type;
-
- /* Disable irqs of this PIO controller */
- __raw_writel(~0, at91_gpio->regbase + PIO_IDR);
-
- /* Setup irq domain */
- at91_gpio->domain = irq_domain_add_linear(node, at91_gpio->chip.ngpio,
- &at91_gpio_ops, at91_gpio);
- if (!at91_gpio->domain)
- panic("at91_gpio.%d: couldn't allocate irq domain (DT).\n",
- at91_gpio->pioc_idx);
-
- /* Setup chained handler */
- if (at91_gpio->pioc_idx)
- prev = &gpio_chip[at91_gpio->pioc_idx - 1];
-
- /* The toplevel handler handles one bank of GPIOs, except
- * on some SoC it can handles up to three...
- * We only set up the handler for the first of the list.
- */
- if (prev && prev->next == at91_gpio)
- return 0;
-
- at91_gpio->pioc_virq = irq_create_mapping(irq_find_host(parent),
- at91_gpio->pioc_hwirq);
- irq_set_chip_data(at91_gpio->pioc_virq, at91_gpio);
- irq_set_chained_handler(at91_gpio->pioc_virq, gpio_irq_handler);
-
- return 0;
-}
-#else
-int __init at91_gpio_of_irq_setup(struct device_node *node,
- struct device_node *parent)
-{
- return -EINVAL;
-}
-#endif
-
/*
* irqdomain initialization: pile up irqdomains on top of AIC range
*/
}
/* gpiolib support */
+static int at91_gpiolib_request(struct gpio_chip *chip, unsigned offset)
+{
+ struct at91_gpio_chip *at91_gpio = to_at91_gpio_chip(chip);
+ void __iomem *pio = at91_gpio->regbase;
+ unsigned mask = 1 << offset;
+
+ __raw_writel(mask, pio + PIO_PER);
+ return 0;
+}
+
static int at91_gpiolib_direction_input(struct gpio_chip *chip,
unsigned offset)
{
return -EINVAL;
}
-#ifdef CONFIG_OF_GPIO
-static void __init of_at91_gpio_init_one(struct device_node *np)
-{
- int alias_idx;
- struct at91_gpio_chip *at91_gpio;
-
- if (!np)
- return;
-
- alias_idx = of_alias_get_id(np, "gpio");
- if (alias_idx >= MAX_GPIO_BANKS) {
- pr_err("at91_gpio, failed alias idx(%d) > MAX_GPIO_BANKS(%d), ignoring.\n",
- alias_idx, MAX_GPIO_BANKS);
- return;
- }
-
- at91_gpio = &gpio_chip[alias_idx];
- at91_gpio->chip.base = alias_idx * at91_gpio->chip.ngpio;
-
- at91_gpio->regbase = of_iomap(np, 0);
- if (!at91_gpio->regbase) {
- pr_err("at91_gpio.%d, failed to map registers, ignoring.\n",
- alias_idx);
- return;
- }
-
- /* Get the interrupts property */
- if (of_property_read_u32(np, "interrupts", &at91_gpio->pioc_hwirq)) {
- pr_err("at91_gpio.%d, failed to get interrupts property, ignoring.\n",
- alias_idx);
- goto ioremap_err;
- }
-
- /* Get capabilities from compatibility property */
- if (of_device_is_compatible(np, "atmel,at91sam9x5-gpio"))
- at91_gpio_caps |= AT91_GPIO_CAP_PIO3;
-
- /* Setup clock */
- if (at91_gpio_setup_clk(alias_idx))
- goto ioremap_err;
-
- at91_gpio->chip.of_node = np;
- gpio_banks = max(gpio_banks, alias_idx + 1);
- at91_gpio->pioc_idx = alias_idx;
- return;
-
-ioremap_err:
- iounmap(at91_gpio->regbase);
-}
-
-static int __init of_at91_gpio_init(void)
-{
- struct device_node *np = NULL;
-
- /*
- * This isn't ideal, but it gets things hooked up until this
- * driver is converted into a platform_device
- */
- for_each_compatible_node(np, NULL, "atmel,at91rm9200-gpio")
- of_at91_gpio_init_one(np);
-
- return gpio_banks > 0 ? 0 : -EINVAL;
-}
-#else
-static int __init of_at91_gpio_init(void)
-{
- return -EINVAL;
-}
-#endif
-
static void __init at91_gpio_init_one(int idx, u32 regbase, int pioc_hwirq)
{
struct at91_gpio_chip *at91_gpio = &gpio_chip[idx];
- at91_gpio->chip.base = idx * at91_gpio->chip.ngpio;
+ at91_gpio->chip.base = idx * MAX_NB_GPIO_PER_BANK;
at91_gpio->pioc_hwirq = pioc_hwirq;
at91_gpio->pioc_idx = idx;
BUG_ON(nr_banks > MAX_GPIO_BANKS);
- if (of_at91_gpio_init() < 0) {
- /* No GPIO controller found in device tree */
- for (i = 0; i < nr_banks; i++)
- at91_gpio_init_one(i, data[i].regbase, data[i].id);
- }
+ if (of_have_populated_dt())
+ return;
+
+ for (i = 0; i < nr_banks; i++)
+ at91_gpio_init_one(i, data[i].regbase, data[i].id);
for (i = 0; i < gpio_banks; i++) {
at91_gpio = &gpio_chip[i];
#include <linux/mm.h>
#include <linux/pm.h>
#include <linux/of_address.h>
+#include <linux/pinctrl/machine.h>
#include <asm/system_misc.h>
#include <asm/mach/map.h>
/* Register the processor-specific clocks */
at91_boot_soc.register_clocks();
- at91_boot_soc.init();
+ if (at91_boot_soc.init)
+ at91_boot_soc.init();
}
#endif
at91_boot_soc.register_clocks();
at91_boot_soc.init();
+
+ pinctrl_provide_dummies();
}
*/
struct at91_init_soc {
+ int builtin;
unsigned int *default_irq_priority;
void (*map_io)(void);
void (*ioremap_registers)(void);
extern struct at91_init_soc at91sam9x5_soc;
extern struct at91_init_soc at91sam9n12_soc;
+#define AT91_SOC_START(_name) \
+struct at91_init_soc __initdata at91##_name##_soc \
+ __used \
+ = { \
+ .builtin = 1, \
+
+#define AT91_SOC_END \
+};
+
static inline int at91_soc_is_enabled(void)
{
- return at91_boot_soc.init != NULL;
+ return at91_boot_soc.builtin;
}
#if !defined(CONFIG_SOC_AT91RM9200)
#include <linux/gpio.h>
#include <linux/io.h>
#include <linux/platform_data/atmel.h>
+#include <linux/pinctrl/consumer.h>
#include <mach/cpu.h>
struct resource *mem;
struct mtd_part_parser_data ppdata = {};
int res;
+ struct pinctrl *pinctrl;
mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!mem) {
nand_chip->IO_ADDR_W = host->io_base;
nand_chip->cmd_ctrl = atmel_nand_cmd_ctrl;
+ pinctrl = devm_pinctrl_get_select_default(&pdev->dev);
+ if (IS_ERR(pinctrl)) {
+ dev_err(host->dev, "Failed to request pinctrl\n");
+ res = PTR_ERR(pinctrl);
+ goto err_ecc_ioremap;
+ }
+
if (gpio_is_valid(host->board.rdy_pin)) {
res = gpio_request(host->board.rdy_pin, "nand_rdy");
if (res < 0) {
help
Say Y here to add some extra checks and diagnostics to PINCTRL calls.
+config PINCTRL_AT91
+ bool "AT91 pinctrl driver"
+ depends on OF
+ depends on ARCH_AT91
+ select PINMUX
+ select PINCONF
+ help
+ Say Y here to enable the at91 pinctrl driver
+
config PINCTRL_BCM2835
bool
select PINMUX
obj-$(CONFIG_PINCTRL) += devicetree.o
endif
obj-$(CONFIG_GENERIC_PINCONF) += pinconf-generic.o
+obj-$(CONFIG_PINCTRL_AT91) += pinctrl-at91.o
obj-$(CONFIG_PINCTRL_BCM2835) += pinctrl-bcm2835.o
obj-$(CONFIG_PINCTRL_IMX) += pinctrl-imx.o
obj-$(CONFIG_PINCTRL_IMX35) += pinctrl-imx35.o
--- /dev/null
+/*
+ * at91 pinctrl driver based on at91 pinmux core
+ *
+ * Copyright (C) 2011-2012 Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
+ *
+ * Under GPLv2 only
+ */
+
+#include <linux/clk.h>
+#include <linux/err.h>
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
+#include <linux/of_address.h>
+#include <linux/of_irq.h>
+#include <linux/slab.h>
+#include <linux/interrupt.h>
+#include <linux/irq.h>
+#include <linux/irqdomain.h>
+#include <linux/io.h>
+#include <linux/gpio.h>
+#include <linux/pinctrl/machine.h>
+#include <linux/pinctrl/pinconf.h>
+#include <linux/pinctrl/pinctrl.h>
+#include <linux/pinctrl/pinmux.h>
+/* Since we request GPIOs from ourself */
+#include <linux/pinctrl/consumer.h>
+
+#include <asm/mach/irq.h>
+
+#include <mach/hardware.h>
+#include <mach/at91_pio.h>
+
+#include "core.h"
+
+#define MAX_NB_GPIO_PER_BANK 32
+
+struct at91_pinctrl_mux_ops;
+
+struct at91_gpio_chip {
+ struct gpio_chip chip;
+ struct pinctrl_gpio_range range;
+ struct at91_gpio_chip *next; /* Bank sharing same clock */
+ int pioc_hwirq; /* PIO bank interrupt identifier on AIC */
+ int pioc_virq; /* PIO bank Linux virtual interrupt */
+ int pioc_idx; /* PIO bank index */
+ void __iomem *regbase; /* PIO bank virtual address */
+ struct clk *clock; /* associated clock */
+ struct irq_domain *domain; /* associated irq domain */
+ struct at91_pinctrl_mux_ops *ops; /* ops */
+};
+
+#define to_at91_gpio_chip(c) container_of(c, struct at91_gpio_chip, chip)
+
+static struct at91_gpio_chip *gpio_chips[MAX_GPIO_BANKS];
+
+static int gpio_banks;
+
+#define PULL_UP (1 << 0)
+#define MULTI_DRIVE (1 << 1)
+
+/**
+ * struct at91_pmx_func - describes AT91 pinmux functions
+ * @name: the name of this specific function
+ * @groups: corresponding pin groups
+ * @ngroups: the number of groups
+ */
+struct at91_pmx_func {
+ const char *name;
+ const char **groups;
+ unsigned ngroups;
+};
+
+enum at91_mux {
+ AT91_MUX_GPIO = 0,
+ AT91_MUX_PERIPH_A = 1,
+ AT91_MUX_PERIPH_B = 2,
+ AT91_MUX_PERIPH_C = 3,
+ AT91_MUX_PERIPH_D = 4,
+};
+
+/**
+ * struct at91_pmx_pin - describes an At91 pin mux
+ * @bank: the bank of the pin
+ * @pin: the pin number in the @bank
+ * @mux: the mux mode : gpio or periph_x of the pin i.e. alternate function.
+ * @conf: the configuration of the pin: PULL_UP, MULTIDRIVE etc...
+ */
+struct at91_pmx_pin {
+ uint32_t bank;
+ uint32_t pin;
+ enum at91_mux mux;
+ unsigned long conf;
+};
+
+/**
+ * struct at91_pin_group - describes an At91 pin group
+ * @name: the name of this specific pin group
+ * @pins_conf: the mux mode for each pin in this group. The size of this
+ * array is the same as pins.
+ * @pins: an array of discrete physical pins used in this group, taken
+ * from the driver-local pin enumeration space
+ * @npins: the number of pins in this group array, i.e. the number of
+ * elements in .pins so we can iterate over that array
+ */
+struct at91_pin_group {
+ const char *name;
+ struct at91_pmx_pin *pins_conf;
+ unsigned int *pins;
+ unsigned npins;
+};
+
+/**
+ * struct at91_pinctrl_mux_ops - describes an At91 mux ops group
+ * on new IP with support for periph C and D the way to mux in
+ * periph A and B has changed
+ * So provide the right call back
+ * if not present means the IP does not support it
+ * @get_periph: return the periph mode configured
+ * @mux_A_periph: mux as periph A
+ * @mux_B_periph: mux as periph B
+ * @mux_C_periph: mux as periph C
+ * @mux_D_periph: mux as periph D
+ * @irq_type: return irq type
+ */
+struct at91_pinctrl_mux_ops {
+ enum at91_mux (*get_periph)(void __iomem *pio, unsigned mask);
+ void (*mux_A_periph)(void __iomem *pio, unsigned mask);
+ void (*mux_B_periph)(void __iomem *pio, unsigned mask);
+ void (*mux_C_periph)(void __iomem *pio, unsigned mask);
+ void (*mux_D_periph)(void __iomem *pio, unsigned mask);
+ /* irq */
+ int (*irq_type)(struct irq_data *d, unsigned type);
+};
+
+static int gpio_irq_type(struct irq_data *d, unsigned type);
+static int alt_gpio_irq_type(struct irq_data *d, unsigned type);
+
+struct at91_pinctrl {
+ struct device *dev;
+ struct pinctrl_dev *pctl;
+
+ int nbanks;
+
+ uint32_t *mux_mask;
+ int nmux;
+
+ struct at91_pmx_func *functions;
+ int nfunctions;
+
+ struct at91_pin_group *groups;
+ int ngroups;
+
+ struct at91_pinctrl_mux_ops *ops;
+};
+
+static const inline struct at91_pin_group *at91_pinctrl_find_group_by_name(
+ const struct at91_pinctrl *info,
+ const char *name)
+{
+ const struct at91_pin_group *grp = NULL;
+ int i;
+
+ for (i = 0; i < info->ngroups; i++) {
+ if (strcmp(info->groups[i].name, name))
+ continue;
+
+ grp = &info->groups[i];
+ dev_dbg(info->dev, "%s: %d 0:%d\n", name, grp->npins, grp->pins[0]);
+ break;
+ }
+
+ return grp;
+}
+
+static int at91_get_groups_count(struct pinctrl_dev *pctldev)
+{
+ struct at91_pinctrl *info = pinctrl_dev_get_drvdata(pctldev);
+
+ return info->ngroups;
+}
+
+static const char *at91_get_group_name(struct pinctrl_dev *pctldev,
+ unsigned selector)
+{
+ struct at91_pinctrl *info = pinctrl_dev_get_drvdata(pctldev);
+
+ return info->groups[selector].name;
+}
+
+static int at91_get_group_pins(struct pinctrl_dev *pctldev, unsigned selector,
+ const unsigned **pins,
+ unsigned *npins)
+{
+ struct at91_pinctrl *info = pinctrl_dev_get_drvdata(pctldev);
+
+ if (selector >= info->ngroups)
+ return -EINVAL;
+
+ *pins = info->groups[selector].pins;
+ *npins = info->groups[selector].npins;
+
+ return 0;
+}
+
+static void at91_pin_dbg_show(struct pinctrl_dev *pctldev, struct seq_file *s,
+ unsigned offset)
+{
+ seq_printf(s, "%s", dev_name(pctldev->dev));
+}
+
+static int at91_dt_node_to_map(struct pinctrl_dev *pctldev,
+ struct device_node *np,
+ struct pinctrl_map **map, unsigned *num_maps)
+{
+ struct at91_pinctrl *info = pinctrl_dev_get_drvdata(pctldev);
+ const struct at91_pin_group *grp;
+ struct pinctrl_map *new_map;
+ struct device_node *parent;
+ int map_num = 1;
+ int i;
+
+ /*
+ * first find the group of this node and check if we need create
+ * config maps for pins
+ */
+ grp = at91_pinctrl_find_group_by_name(info, np->name);
+ if (!grp) {
+ dev_err(info->dev, "unable to find group for node %s\n",
+ np->name);
+ return -EINVAL;
+ }
+
+ map_num += grp->npins;
+ new_map = devm_kzalloc(pctldev->dev, sizeof(*new_map) * map_num, GFP_KERNEL);
+ if (!new_map)
+ return -ENOMEM;
+
+ *map = new_map;
+ *num_maps = map_num;
+
+ /* create mux map */
+ parent = of_get_parent(np);
+ if (!parent) {
+ kfree(new_map);
+ return -EINVAL;
+ }
+ new_map[0].type = PIN_MAP_TYPE_MUX_GROUP;
+ new_map[0].data.mux.function = parent->name;
+ new_map[0].data.mux.group = np->name;
+ of_node_put(parent);
+
+ /* create config map */
+ new_map++;
+ for (i = 0; i < grp->npins; i++) {
+ new_map[i].type = PIN_MAP_TYPE_CONFIGS_PIN;
+ new_map[i].data.configs.group_or_pin =
+ pin_get_name(pctldev, grp->pins[i]);
+ new_map[i].data.configs.configs = &grp->pins_conf[i].conf;
+ new_map[i].data.configs.num_configs = 1;
+ }
+
+ dev_dbg(pctldev->dev, "maps: function %s group %s num %d\n",
+ (*map)->data.mux.function, (*map)->data.mux.group, map_num);
+
+ return 0;
+}
+
+static void at91_dt_free_map(struct pinctrl_dev *pctldev,
+ struct pinctrl_map *map, unsigned num_maps)
+{
+}
+
+static struct pinctrl_ops at91_pctrl_ops = {
+ .get_groups_count = at91_get_groups_count,
+ .get_group_name = at91_get_group_name,
+ .get_group_pins = at91_get_group_pins,
+ .pin_dbg_show = at91_pin_dbg_show,
+ .dt_node_to_map = at91_dt_node_to_map,
+ .dt_free_map = at91_dt_free_map,
+};
+
+static void __iomem * pin_to_controller(struct at91_pinctrl *info,
+ unsigned int bank)
+{
+ return gpio_chips[bank]->regbase;
+}
+
+static inline int pin_to_bank(unsigned pin)
+{
+ return pin /= MAX_NB_GPIO_PER_BANK;
+}
+
+static unsigned pin_to_mask(unsigned int pin)
+{
+ return 1 << pin;
+}
+
+static void at91_mux_disable_interrupt(void __iomem *pio, unsigned mask)
+{
+ writel_relaxed(mask, pio + PIO_IDR);
+}
+
+static unsigned at91_mux_get_pullup(void __iomem *pio, unsigned pin)
+{
+ return (readl_relaxed(pio + PIO_PUSR) >> pin) & 0x1;
+}
+
+static void at91_mux_set_pullup(void __iomem *pio, unsigned mask, bool on)
+{
+ writel_relaxed(mask, pio + (on ? PIO_PUER : PIO_PUDR));
+}
+
+static unsigned at91_mux_get_multidrive(void __iomem *pio, unsigned pin)
+{
+ return (readl_relaxed(pio + PIO_MDSR) >> pin) & 0x1;
+}
+
+static void at91_mux_set_multidrive(void __iomem *pio, unsigned mask, bool on)
+{
+ writel_relaxed(mask, pio + (on ? PIO_MDER : PIO_MDDR));
+}
+
+static void at91_mux_set_A_periph(void __iomem *pio, unsigned mask)
+{
+ writel_relaxed(mask, pio + PIO_ASR);
+}
+
+static void at91_mux_set_B_periph(void __iomem *pio, unsigned mask)
+{
+ writel_relaxed(mask, pio + PIO_BSR);
+}
+
+static void at91_mux_pio3_set_A_periph(void __iomem *pio, unsigned mask)
+{
+
+ writel_relaxed(readl_relaxed(pio + PIO_ABCDSR1) & ~mask,
+ pio + PIO_ABCDSR1);
+ writel_relaxed(readl_relaxed(pio + PIO_ABCDSR2) & ~mask,
+ pio + PIO_ABCDSR2);
+}
+
+static void at91_mux_pio3_set_B_periph(void __iomem *pio, unsigned mask)
+{
+ writel_relaxed(readl_relaxed(pio + PIO_ABCDSR1) | mask,
+ pio + PIO_ABCDSR1);
+ writel_relaxed(readl_relaxed(pio + PIO_ABCDSR2) & ~mask,
+ pio + PIO_ABCDSR2);
+}
+
+static void at91_mux_pio3_set_C_periph(void __iomem *pio, unsigned mask)
+{
+ writel_relaxed(readl_relaxed(pio + PIO_ABCDSR1) & ~mask, pio + PIO_ABCDSR1);
+ writel_relaxed(readl_relaxed(pio + PIO_ABCDSR2) | mask, pio + PIO_ABCDSR2);
+}
+
+static void at91_mux_pio3_set_D_periph(void __iomem *pio, unsigned mask)
+{
+ writel_relaxed(readl_relaxed(pio + PIO_ABCDSR1) | mask, pio + PIO_ABCDSR1);
+ writel_relaxed(readl_relaxed(pio + PIO_ABCDSR2) | mask, pio + PIO_ABCDSR2);
+}
+
+static enum at91_mux at91_mux_pio3_get_periph(void __iomem *pio, unsigned mask)
+{
+ unsigned select;
+
+ if (readl_relaxed(pio + PIO_PSR) & mask)
+ return AT91_MUX_GPIO;
+
+ select = !!(readl_relaxed(pio + PIO_ABCDSR1) & mask);
+ select |= (!!(readl_relaxed(pio + PIO_ABCDSR2) & mask) << 1);
+
+ return select + 1;
+}
+
+static enum at91_mux at91_mux_get_periph(void __iomem *pio, unsigned mask)
+{
+ unsigned select;
+
+ if (readl_relaxed(pio + PIO_PSR) & mask)
+ return AT91_MUX_GPIO;
+
+ select = readl_relaxed(pio + PIO_ABSR) & mask;
+
+ return select + 1;
+}
+
+static struct at91_pinctrl_mux_ops at91rm9200_ops = {
+ .get_periph = at91_mux_get_periph,
+ .mux_A_periph = at91_mux_set_A_periph,
+ .mux_B_periph = at91_mux_set_B_periph,
+ .irq_type = gpio_irq_type,
+};
+
+static struct at91_pinctrl_mux_ops at91sam9x5_ops = {
+ .get_periph = at91_mux_pio3_get_periph,
+ .mux_A_periph = at91_mux_pio3_set_A_periph,
+ .mux_B_periph = at91_mux_pio3_set_B_periph,
+ .mux_C_periph = at91_mux_pio3_set_C_periph,
+ .mux_D_periph = at91_mux_pio3_set_D_periph,
+ .irq_type = alt_gpio_irq_type,
+};
+
+static void at91_pin_dbg(const struct device *dev, const struct at91_pmx_pin *pin)
+{
+ if (pin->mux) {
+ dev_dbg(dev, "pio%c%d configured as periph%c with conf = 0x%lu\n",
+ pin->bank + 'A', pin->pin, pin->mux - 1 + 'A', pin->conf);
+ } else {
+ dev_dbg(dev, "pio%c%d configured as gpio with conf = 0x%lu\n",
+ pin->bank + 'A', pin->pin, pin->conf);
+ }
+}
+
+static int pin_check_config(struct at91_pinctrl *info, const char* name,
+ int index, const struct at91_pmx_pin *pin)
+{
+ int mux;
+
+ /* check if it's a valid config */
+ if (pin->bank >= info->nbanks) {
+ dev_err(info->dev, "%s: pin conf %d bank_id %d >= nbanks %d\n",
+ name, index, pin->bank, info->nbanks);
+ return -EINVAL;
+ }
+
+ if (pin->pin >= MAX_NB_GPIO_PER_BANK) {
+ dev_err(info->dev, "%s: pin conf %d pin_bank_id %d >= %d\n",
+ name, index, pin->pin, MAX_NB_GPIO_PER_BANK);
+ return -EINVAL;
+ }
+
+ if (!pin->mux)
+ return 0;
+
+ mux = pin->mux - 1;
+
+ if (mux >= info->nmux) {
+ dev_err(info->dev, "%s: pin conf %d mux_id %d >= nmux %d\n",
+ name, index, mux, info->nmux);
+ return -EINVAL;
+ }
+
+ if (!(info->mux_mask[pin->bank * info->nmux + mux] & 1 << pin->pin)) {
+ dev_err(info->dev, "%s: pin conf %d mux_id %d not supported for pio%c%d\n",
+ name, index, mux, pin->bank + 'A', pin->pin);
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static void at91_mux_gpio_disable(void __iomem *pio, unsigned mask)
+{
+ writel_relaxed(mask, pio + PIO_PDR);
+}
+
+static void at91_mux_gpio_enable(void __iomem *pio, unsigned mask, bool input)
+{
+ writel_relaxed(mask, pio + PIO_PER);
+ writel_relaxed(mask, pio + (input ? PIO_ODR : PIO_OER));
+}
+
+static int at91_pmx_enable(struct pinctrl_dev *pctldev, unsigned selector,
+ unsigned group)
+{
+ struct at91_pinctrl *info = pinctrl_dev_get_drvdata(pctldev);
+ const struct at91_pmx_pin *pins_conf = info->groups[group].pins_conf;
+ const struct at91_pmx_pin *pin;
+ uint32_t npins = info->groups[group].npins;
+ int i, ret;
+ unsigned mask;
+ void __iomem *pio;
+
+ dev_dbg(info->dev, "enable function %s group %s\n",
+ info->functions[selector].name, info->groups[group].name);
+
+ /* first check that all the pins of the group are valid with a valid
+ * paramter */
+ for (i = 0; i < npins; i++) {
+ pin = &pins_conf[i];
+ ret = pin_check_config(info, info->groups[group].name, i, pin);
+ if (ret)
+ return ret;
+ }
+
+ for (i = 0; i < npins; i++) {
+ pin = &pins_conf[i];
+ at91_pin_dbg(info->dev, pin);
+ pio = pin_to_controller(info, pin->bank);
+ mask = pin_to_mask(pin->pin);
+ at91_mux_disable_interrupt(pio, mask);
+ switch(pin->mux) {
+ case AT91_MUX_GPIO:
+ at91_mux_gpio_enable(pio, mask, 1);
+ break;
+ case AT91_MUX_PERIPH_A:
+ info->ops->mux_A_periph(pio, mask);
+ break;
+ case AT91_MUX_PERIPH_B:
+ info->ops->mux_B_periph(pio, mask);
+ break;
+ case AT91_MUX_PERIPH_C:
+ if (!info->ops->mux_C_periph)
+ return -EINVAL;
+ info->ops->mux_C_periph(pio, mask);
+ break;
+ case AT91_MUX_PERIPH_D:
+ if (!info->ops->mux_D_periph)
+ return -EINVAL;
+ info->ops->mux_D_periph(pio, mask);
+ break;
+ }
+ if (pin->mux)
+ at91_mux_gpio_disable(pio, mask);
+ }
+
+ return 0;
+}
+
+static void at91_pmx_disable(struct pinctrl_dev *pctldev, unsigned selector,
+ unsigned group)
+{
+ struct at91_pinctrl *info = pinctrl_dev_get_drvdata(pctldev);
+ const struct at91_pmx_pin *pins_conf = info->groups[group].pins_conf;
+ const struct at91_pmx_pin *pin;
+ uint32_t npins = info->groups[group].npins;
+ int i;
+ unsigned mask;
+ void __iomem *pio;
+
+ for (i = 0; i < npins; i++) {
+ pin = &pins_conf[i];
+ at91_pin_dbg(info->dev, pin);
+ pio = pin_to_controller(info, pin->bank);
+ mask = pin_to_mask(pin->pin);
+ at91_mux_gpio_enable(pio, mask, 1);
+ }
+}
+
+static int at91_pmx_get_funcs_count(struct pinctrl_dev *pctldev)
+{
+ struct at91_pinctrl *info = pinctrl_dev_get_drvdata(pctldev);
+
+ return info->nfunctions;
+}
+
+static const char *at91_pmx_get_func_name(struct pinctrl_dev *pctldev,
+ unsigned selector)
+{
+ struct at91_pinctrl *info = pinctrl_dev_get_drvdata(pctldev);
+
+ return info->functions[selector].name;
+}
+
+static int at91_pmx_get_groups(struct pinctrl_dev *pctldev, unsigned selector,
+ const char * const **groups,
+ unsigned * const num_groups)
+{
+ struct at91_pinctrl *info = pinctrl_dev_get_drvdata(pctldev);
+
+ *groups = info->functions[selector].groups;
+ *num_groups = info->functions[selector].ngroups;
+
+ return 0;
+}
+
+static int at91_gpio_request_enable(struct pinctrl_dev *pctldev,
+ struct pinctrl_gpio_range *range,
+ unsigned offset)
+{
+ struct at91_pinctrl *npct = pinctrl_dev_get_drvdata(pctldev);
+ struct at91_gpio_chip *at91_chip;
+ struct gpio_chip *chip;
+ unsigned mask;
+
+ if (!range) {
+ dev_err(npct->dev, "invalid range\n");
+ return -EINVAL;
+ }
+ if (!range->gc) {
+ dev_err(npct->dev, "missing GPIO chip in range\n");
+ return -EINVAL;
+ }
+ chip = range->gc;
+ at91_chip = container_of(chip, struct at91_gpio_chip, chip);
+
+ dev_dbg(npct->dev, "enable pin %u as GPIO\n", offset);
+
+ mask = 1 << (offset - chip->base);
+
+ dev_dbg(npct->dev, "enable pin %u as PIO%c%d 0x%x\n",
+ offset, 'A' + range->id, offset - chip->base, mask);
+
+ writel_relaxed(mask, at91_chip->regbase + PIO_PER);
+
+ return 0;
+}
+
+static void at91_gpio_disable_free(struct pinctrl_dev *pctldev,
+ struct pinctrl_gpio_range *range,
+ unsigned offset)
+{
+ struct at91_pinctrl *npct = pinctrl_dev_get_drvdata(pctldev);
+
+ dev_dbg(npct->dev, "disable pin %u as GPIO\n", offset);
+ /* Set the pin to some default state, GPIO is usually default */
+}
+
+static struct pinmux_ops at91_pmx_ops = {
+ .get_functions_count = at91_pmx_get_funcs_count,
+ .get_function_name = at91_pmx_get_func_name,
+ .get_function_groups = at91_pmx_get_groups,
+ .enable = at91_pmx_enable,
+ .disable = at91_pmx_disable,
+ .gpio_request_enable = at91_gpio_request_enable,
+ .gpio_disable_free = at91_gpio_disable_free,
+};
+
+static int at91_pinconf_get(struct pinctrl_dev *pctldev,
+ unsigned pin_id, unsigned long *config)
+{
+ struct at91_pinctrl *info = pinctrl_dev_get_drvdata(pctldev);
+ void __iomem *pio;
+ unsigned pin;
+
+ dev_dbg(info->dev, "%s:%d, pin_id=%d, config=0x%lx", __func__, __LINE__, pin_id, *config);
+ pio = pin_to_controller(info, pin_to_bank(pin_id));
+ pin = pin_id % MAX_NB_GPIO_PER_BANK;
+
+ if (at91_mux_get_multidrive(pio, pin))
+ *config |= MULTI_DRIVE;
+
+ if (at91_mux_get_pullup(pio, pin))
+ *config |= PULL_UP;
+
+ return 0;
+}
+
+static int at91_pinconf_set(struct pinctrl_dev *pctldev,
+ unsigned pin_id, unsigned long config)
+{
+ struct at91_pinctrl *info = pinctrl_dev_get_drvdata(pctldev);
+ unsigned mask;
+ void __iomem *pio;
+
+ dev_dbg(info->dev, "%s:%d, pin_id=%d, config=0x%lx", __func__, __LINE__, pin_id, config);
+ pio = pin_to_controller(info, pin_to_bank(pin_id));
+ mask = pin_to_mask(pin_id % MAX_NB_GPIO_PER_BANK);
+
+ at91_mux_set_pullup(pio, mask, config & PULL_UP);
+ at91_mux_set_multidrive(pio, mask, config & MULTI_DRIVE);
+ return 0;
+}
+
+static void at91_pinconf_dbg_show(struct pinctrl_dev *pctldev,
+ struct seq_file *s, unsigned pin_id)
+{
+
+}
+
+static void at91_pinconf_group_dbg_show(struct pinctrl_dev *pctldev,
+ struct seq_file *s, unsigned group)
+{
+}
+
+struct pinconf_ops at91_pinconf_ops = {
+ .pin_config_get = at91_pinconf_get,
+ .pin_config_set = at91_pinconf_set,
+ .pin_config_dbg_show = at91_pinconf_dbg_show,
+ .pin_config_group_dbg_show = at91_pinconf_group_dbg_show,
+};
+
+static struct pinctrl_desc at91_pinctrl_desc = {
+ .pctlops = &at91_pctrl_ops,
+ .pmxops = &at91_pmx_ops,
+ .confops = &at91_pinconf_ops,
+ .owner = THIS_MODULE,
+};
+
+static const char *gpio_compat = "atmel,at91rm9200-gpio";
+
+static void __devinit at91_pinctrl_child_count(struct at91_pinctrl *info,
+ struct device_node *np)
+{
+ struct device_node *child;
+
+ for_each_child_of_node(np, child) {
+ if (of_device_is_compatible(child, gpio_compat)) {
+ info->nbanks++;
+ } else {
+ info->nfunctions++;
+ info->ngroups += of_get_child_count(child);
+ }
+ }
+}
+
+static int __devinit at91_pinctrl_mux_mask(struct at91_pinctrl *info,
+ struct device_node *np)
+{
+ int ret = 0;
+ int size;
+ const const __be32 *list;
+
+ list = of_get_property(np, "atmel,mux-mask", &size);
+ if (!list) {
+ dev_err(info->dev, "can not read the mux-mask of %d\n", size);
+ return -EINVAL;
+ }
+
+ size /= sizeof(*list);
+ if (!size || size % info->nbanks) {
+ dev_err(info->dev, "wrong mux mask array should be by %d\n", info->nbanks);
+ return -EINVAL;
+ }
+ info->nmux = size / info->nbanks;
+
+ info->mux_mask = devm_kzalloc(info->dev, sizeof(u32) * size, GFP_KERNEL);
+ if (!info->mux_mask) {
+ dev_err(info->dev, "could not alloc mux_mask\n");
+ return -ENOMEM;
+ }
+
+ ret = of_property_read_u32_array(np, "atmel,mux-mask",
+ info->mux_mask, size);
+ if (ret)
+ dev_err(info->dev, "can not read the mux-mask of %d\n", size);
+ return ret;
+}
+
+static int __devinit at91_pinctrl_parse_groups(struct device_node *np,
+ struct at91_pin_group *grp,
+ struct at91_pinctrl *info,
+ u32 index)
+{
+ struct at91_pmx_pin *pin;
+ int size;
+ const const __be32 *list;
+ int i, j;
+
+ dev_dbg(info->dev, "group(%d): %s\n", index, np->name);
+
+ /* Initialise group */
+ grp->name = np->name;
+
+ /*
+ * the binding format is atmel,pins = <bank pin mux CONFIG ...>,
+ * do sanity check and calculate pins number
+ */
+ list = of_get_property(np, "atmel,pins", &size);
+ /* we do not check return since it's safe node passed down */
+ size /= sizeof(*list);
+ if (!size || size % 4) {
+ dev_err(info->dev, "wrong pins number or pins and configs should be by 4\n");
+ return -EINVAL;
+ }
+
+ grp->npins = size / 4;
+ pin = grp->pins_conf = devm_kzalloc(info->dev, grp->npins * sizeof(struct at91_pmx_pin),
+ GFP_KERNEL);
+ grp->pins = devm_kzalloc(info->dev, grp->npins * sizeof(unsigned int),
+ GFP_KERNEL);
+ if (!grp->pins_conf || !grp->pins)
+ return -ENOMEM;
+
+ for (i = 0, j = 0; i < size; i += 4, j++) {
+ pin->bank = be32_to_cpu(*list++);
+ pin->pin = be32_to_cpu(*list++);
+ grp->pins[j] = pin->bank * MAX_NB_GPIO_PER_BANK + pin->pin;
+ pin->mux = be32_to_cpu(*list++);
+ pin->conf = be32_to_cpu(*list++);
+
+ at91_pin_dbg(info->dev, pin);
+ pin++;
+ }
+
+ return 0;
+}
+
+static int __devinit at91_pinctrl_parse_functions(struct device_node *np,
+ struct at91_pinctrl *info, u32 index)
+{
+ struct device_node *child;
+ struct at91_pmx_func *func;
+ struct at91_pin_group *grp;
+ int ret;
+ static u32 grp_index;
+ u32 i = 0;
+
+ dev_dbg(info->dev, "parse function(%d): %s\n", index, np->name);
+
+ func = &info->functions[index];
+
+ /* Initialise function */
+ func->name = np->name;
+ func->ngroups = of_get_child_count(np);
+ if (func->ngroups <= 0) {
+ dev_err(info->dev, "no groups defined\n");
+ return -EINVAL;
+ }
+ func->groups = devm_kzalloc(info->dev,
+ func->ngroups * sizeof(char *), GFP_KERNEL);
+ if (!func->groups)
+ return -ENOMEM;
+
+ for_each_child_of_node(np, child) {
+ func->groups[i] = child->name;
+ grp = &info->groups[grp_index++];
+ ret = at91_pinctrl_parse_groups(child, grp, info, i++);
+ if (ret)
+ return ret;
+ }
+
+ return 0;
+}
+
+static struct of_device_id at91_pinctrl_of_match[] __devinitdata = {
+ { .compatible = "atmel,at91sam9x5-pinctrl", .data = &at91sam9x5_ops },
+ { .compatible = "atmel,at91rm9200-pinctrl", .data = &at91rm9200_ops },
+ { /* sentinel */ }
+};
+
+static int __devinit at91_pinctrl_probe_dt(struct platform_device *pdev,
+ struct at91_pinctrl *info)
+{
+ int ret = 0;
+ int i, j;
+ uint32_t *tmp;
+ struct device_node *np = pdev->dev.of_node;
+ struct device_node *child;
+
+ if (!np)
+ return -ENODEV;
+
+ info->dev = &pdev->dev;
+ info->ops = (struct at91_pinctrl_mux_ops*)
+ of_match_device(at91_pinctrl_of_match, &pdev->dev)->data;
+ at91_pinctrl_child_count(info, np);
+
+ if (info->nbanks < 1) {
+ dev_err(&pdev->dev, "you need to specify atleast one gpio-controller\n");
+ return -EINVAL;
+ }
+
+ ret = at91_pinctrl_mux_mask(info, np);
+ if (ret)
+ return ret;
+
+ dev_dbg(&pdev->dev, "nmux = %d\n", info->nmux);
+
+ dev_dbg(&pdev->dev, "mux-mask\n");
+ tmp = info->mux_mask;
+ for (i = 0; i < info->nbanks; i++) {
+ for (j = 0; j < info->nmux; j++, tmp++) {
+ dev_dbg(&pdev->dev, "%d:%d\t0x%x\n", i, j, tmp[0]);
+ }
+ }
+
+ dev_dbg(&pdev->dev, "nfunctions = %d\n", info->nfunctions);
+ dev_dbg(&pdev->dev, "ngroups = %d\n", info->ngroups);
+ info->functions = devm_kzalloc(&pdev->dev, info->nfunctions * sizeof(struct at91_pmx_func),
+ GFP_KERNEL);
+ if (!info->functions)
+ return -ENOMEM;
+
+ info->groups = devm_kzalloc(&pdev->dev, info->ngroups * sizeof(struct at91_pin_group),
+ GFP_KERNEL);
+ if (!info->groups)
+ return -ENOMEM;
+
+ dev_dbg(&pdev->dev, "nbanks = %d\n", info->nbanks);
+ dev_dbg(&pdev->dev, "nfunctions = %d\n", info->nfunctions);
+ dev_dbg(&pdev->dev, "ngroups = %d\n", info->ngroups);
+
+ i = 0;
+
+ for_each_child_of_node(np, child) {
+ if (of_device_is_compatible(child, gpio_compat))
+ continue;
+ ret = at91_pinctrl_parse_functions(child, info, i++);
+ if (ret) {
+ dev_err(&pdev->dev, "failed to parse function\n");
+ return ret;
+ }
+ }
+
+ return 0;
+}
+
+static int __devinit at91_pinctrl_probe(struct platform_device *pdev)
+{
+ struct at91_pinctrl *info;
+ struct pinctrl_pin_desc *pdesc;
+ int ret, i, j ,k;
+
+ info = devm_kzalloc(&pdev->dev, sizeof(*info), GFP_KERNEL);
+ if (!info)
+ return -ENOMEM;
+
+ ret = at91_pinctrl_probe_dt(pdev, info);
+ if (ret)
+ return ret;
+
+ /*
+ * We need all the GPIO drivers to probe FIRST, or we will not be able
+ * to obtain references to the struct gpio_chip * for them, and we
+ * need this to proceed.
+ */
+ for (i = 0; i < info->nbanks; i++) {
+ if (!gpio_chips[i]) {
+ dev_warn(&pdev->dev, "GPIO chip %d not registered yet\n", i);
+ devm_kfree(&pdev->dev, info);
+ return -EPROBE_DEFER;
+ }
+ }
+
+ at91_pinctrl_desc.name = dev_name(&pdev->dev);
+ at91_pinctrl_desc.npins = info->nbanks * MAX_NB_GPIO_PER_BANK;
+ at91_pinctrl_desc.pins = pdesc =
+ devm_kzalloc(&pdev->dev, sizeof(*pdesc) * at91_pinctrl_desc.npins, GFP_KERNEL);
+
+ if (!at91_pinctrl_desc.pins)
+ return -ENOMEM;
+
+ for (i = 0 , k = 0; i < info->nbanks; i++) {
+ for (j = 0; j < MAX_NB_GPIO_PER_BANK; j++, k++) {
+ pdesc->number = k;
+ pdesc->name = kasprintf(GFP_KERNEL, "pio%c%d", i + 'A', j);
+ pdesc++;
+ }
+ }
+
+ platform_set_drvdata(pdev, info);
+ info->pctl = pinctrl_register(&at91_pinctrl_desc, &pdev->dev, info);
+
+ if (!info->pctl) {
+ dev_err(&pdev->dev, "could not register AT91 pinctrl driver\n");
+ ret = -EINVAL;
+ goto err;
+ }
+
+ /* We will handle a range of GPIO pins */
+ for (i = 0; i < info->nbanks; i++)
+ pinctrl_add_gpio_range(info->pctl, &gpio_chips[i]->range);
+
+ dev_info(&pdev->dev, "initialized AT91 pinctrl driver\n");
+
+ return 0;
+
+err:
+ return ret;
+}
+
+static int __devexit at91_pinctrl_remove(struct platform_device *pdev)
+{
+ struct at91_pinctrl *info = platform_get_drvdata(pdev);
+
+ pinctrl_unregister(info->pctl);
+
+ return 0;
+}
+
+static int at91_gpio_request(struct gpio_chip *chip, unsigned offset)
+{
+ /*
+ * Map back to global GPIO space and request muxing, the direction
+ * parameter does not matter for this controller.
+ */
+ int gpio = chip->base + offset;
+ int bank = chip->base / chip->ngpio;
+
+ dev_dbg(chip->dev, "%s:%d pio%c%d(%d)\n", __func__, __LINE__,
+ 'A' + bank, offset, gpio);
+
+ return pinctrl_request_gpio(gpio);
+}
+
+static void at91_gpio_free(struct gpio_chip *chip, unsigned offset)
+{
+ int gpio = chip->base + offset;
+
+ pinctrl_free_gpio(gpio);
+}
+
+static int at91_gpio_direction_input(struct gpio_chip *chip, unsigned offset)
+{
+ struct at91_gpio_chip *at91_gpio = to_at91_gpio_chip(chip);
+ void __iomem *pio = at91_gpio->regbase;
+ unsigned mask = 1 << offset;
+
+ writel_relaxed(mask, pio + PIO_ODR);
+ return 0;
+}
+
+static int at91_gpio_get(struct gpio_chip *chip, unsigned offset)
+{
+ struct at91_gpio_chip *at91_gpio = to_at91_gpio_chip(chip);
+ void __iomem *pio = at91_gpio->regbase;
+ unsigned mask = 1 << offset;
+ u32 pdsr;
+
+ pdsr = readl_relaxed(pio + PIO_PDSR);
+ return (pdsr & mask) != 0;
+}
+
+static void at91_gpio_set(struct gpio_chip *chip, unsigned offset,
+ int val)
+{
+ struct at91_gpio_chip *at91_gpio = to_at91_gpio_chip(chip);
+ void __iomem *pio = at91_gpio->regbase;
+ unsigned mask = 1 << offset;
+
+ writel_relaxed(mask, pio + (val ? PIO_SODR : PIO_CODR));
+}
+
+static int at91_gpio_direction_output(struct gpio_chip *chip, unsigned offset,
+ int val)
+{
+ struct at91_gpio_chip *at91_gpio = to_at91_gpio_chip(chip);
+ void __iomem *pio = at91_gpio->regbase;
+ unsigned mask = 1 << offset;
+
+ writel_relaxed(mask, pio + (val ? PIO_SODR : PIO_CODR));
+ writel_relaxed(mask, pio + PIO_OER);
+
+ return 0;
+}
+
+static int at91_gpio_to_irq(struct gpio_chip *chip, unsigned offset)
+{
+ struct at91_gpio_chip *at91_gpio = to_at91_gpio_chip(chip);
+ int virq;
+
+ if (offset < chip->ngpio)
+ virq = irq_create_mapping(at91_gpio->domain, offset);
+ else
+ virq = -ENXIO;
+
+ dev_dbg(chip->dev, "%s: request IRQ for GPIO %d, return %d\n",
+ chip->label, offset + chip->base, virq);
+ return virq;
+}
+
+#ifdef CONFIG_DEBUG_FS
+static void at91_gpio_dbg_show(struct seq_file *s, struct gpio_chip *chip)
+{
+ enum at91_mux mode;
+ int i;
+ struct at91_gpio_chip *at91_gpio = to_at91_gpio_chip(chip);
+ void __iomem *pio = at91_gpio->regbase;
+
+ for (i = 0; i < chip->ngpio; i++) {
+ unsigned pin = chip->base + i;
+ unsigned mask = pin_to_mask(pin);
+ const char *gpio_label;
+ u32 pdsr;
+
+ gpio_label = gpiochip_is_requested(chip, i);
+ if (!gpio_label)
+ continue;
+ mode = at91_gpio->ops->get_periph(pio, mask);
+ seq_printf(s, "[%s] GPIO%s%d: ",
+ gpio_label, chip->label, i);
+ if (mode == AT91_MUX_GPIO) {
+ pdsr = readl_relaxed(pio + PIO_PDSR);
+
+ seq_printf(s, "[gpio] %s\n",
+ pdsr & mask ?
+ "set" : "clear");
+ } else {
+ seq_printf(s, "[periph %c]\n",
+ mode + 'A' - 1);
+ }
+ }
+}
+#else
+#define at91_gpio_dbg_show NULL
+#endif
+
+/* Several AIC controller irqs are dispatched through this GPIO handler.
+ * To use any AT91_PIN_* as an externally triggered IRQ, first call
+ * at91_set_gpio_input() then maybe enable its glitch filter.
+ * Then just request_irq() with the pin ID; it works like any ARM IRQ
+ * handler.
+ * First implementation always triggers on rising and falling edges
+ * whereas the newer PIO3 can be additionally configured to trigger on
+ * level, edge with any polarity.
+ *
+ * Alternatively, certain pins may be used directly as IRQ0..IRQ6 after
+ * configuring them with at91_set_a_periph() or at91_set_b_periph().
+ * IRQ0..IRQ6 should be configurable, e.g. level vs edge triggering.
+ */
+
+static void gpio_irq_mask(struct irq_data *d)
+{
+ struct at91_gpio_chip *at91_gpio = irq_data_get_irq_chip_data(d);
+ void __iomem *pio = at91_gpio->regbase;
+ unsigned mask = 1 << d->hwirq;
+
+ if (pio)
+ writel_relaxed(mask, pio + PIO_IDR);
+}
+
+static void gpio_irq_unmask(struct irq_data *d)
+{
+ struct at91_gpio_chip *at91_gpio = irq_data_get_irq_chip_data(d);
+ void __iomem *pio = at91_gpio->regbase;
+ unsigned mask = 1 << d->hwirq;
+
+ if (pio)
+ writel_relaxed(mask, pio + PIO_IER);
+}
+
+static int gpio_irq_type(struct irq_data *d, unsigned type)
+{
+ switch (type) {
+ case IRQ_TYPE_NONE:
+ case IRQ_TYPE_EDGE_BOTH:
+ return 0;
+ default:
+ return -EINVAL;
+ }
+}
+
+/* Alternate irq type for PIO3 support */
+static int alt_gpio_irq_type(struct irq_data *d, unsigned type)
+{
+ struct at91_gpio_chip *at91_gpio = irq_data_get_irq_chip_data(d);
+ void __iomem *pio = at91_gpio->regbase;
+ unsigned mask = 1 << d->hwirq;
+
+ switch (type) {
+ case IRQ_TYPE_EDGE_RISING:
+ writel_relaxed(mask, pio + PIO_ESR);
+ writel_relaxed(mask, pio + PIO_REHLSR);
+ break;
+ case IRQ_TYPE_EDGE_FALLING:
+ writel_relaxed(mask, pio + PIO_ESR);
+ writel_relaxed(mask, pio + PIO_FELLSR);
+ break;
+ case IRQ_TYPE_LEVEL_LOW:
+ writel_relaxed(mask, pio + PIO_LSR);
+ writel_relaxed(mask, pio + PIO_FELLSR);
+ break;
+ case IRQ_TYPE_LEVEL_HIGH:
+ writel_relaxed(mask, pio + PIO_LSR);
+ writel_relaxed(mask, pio + PIO_REHLSR);
+ break;
+ case IRQ_TYPE_EDGE_BOTH:
+ /*
+ * disable additional interrupt modes:
+ * fall back to default behavior
+ */
+ writel_relaxed(mask, pio + PIO_AIMDR);
+ return 0;
+ case IRQ_TYPE_NONE:
+ default:
+ pr_warn("AT91: No type for irq %d\n", gpio_to_irq(d->irq));
+ return -EINVAL;
+ }
+
+ /* enable additional interrupt modes */
+ writel_relaxed(mask, pio + PIO_AIMER);
+
+ return 0;
+}
+
+#ifdef CONFIG_PM
+static int gpio_irq_set_wake(struct irq_data *d, unsigned state)
+{
+ struct at91_gpio_chip *at91_gpio = irq_data_get_irq_chip_data(d);
+ unsigned bank = at91_gpio->pioc_idx;
+
+ if (unlikely(bank >= MAX_GPIO_BANKS))
+ return -EINVAL;
+
+ irq_set_irq_wake(at91_gpio->pioc_virq, state);
+
+ return 0;
+}
+#else
+#define gpio_irq_set_wake NULL
+#endif
+
+static struct irq_chip gpio_irqchip = {
+ .name = "GPIO",
+ .irq_disable = gpio_irq_mask,
+ .irq_mask = gpio_irq_mask,
+ .irq_unmask = gpio_irq_unmask,
+ /* .irq_set_type is set dynamically */
+ .irq_set_wake = gpio_irq_set_wake,
+};
+
+static void gpio_irq_handler(unsigned irq, struct irq_desc *desc)
+{
+ struct irq_chip *chip = irq_desc_get_chip(desc);
+ struct irq_data *idata = irq_desc_get_irq_data(desc);
+ struct at91_gpio_chip *at91_gpio = irq_data_get_irq_chip_data(idata);
+ void __iomem *pio = at91_gpio->regbase;
+ unsigned long isr;
+ int n;
+
+ chained_irq_enter(chip, desc);
+ for (;;) {
+ /* Reading ISR acks pending (edge triggered) GPIO interrupts.
+ * When there none are pending, we're finished unless we need
+ * to process multiple banks (like ID_PIOCDE on sam9263).
+ */
+ isr = readl_relaxed(pio + PIO_ISR) & readl_relaxed(pio + PIO_IMR);
+ if (!isr) {
+ if (!at91_gpio->next)
+ break;
+ at91_gpio = at91_gpio->next;
+ pio = at91_gpio->regbase;
+ continue;
+ }
+
+ for_each_set_bit(n, &isr, BITS_PER_LONG) {
+ generic_handle_irq(irq_find_mapping(at91_gpio->domain, n));
+ }
+ }
+ chained_irq_exit(chip, desc);
+ /* now it may re-trigger */
+}
+
+/*
+ * This lock class tells lockdep that GPIO irqs are in a different
+ * category than their parents, so it won't report false recursion.
+ */
+static struct lock_class_key gpio_lock_class;
+
+static int at91_gpio_irq_map(struct irq_domain *h, unsigned int virq,
+ irq_hw_number_t hw)
+{
+ struct at91_gpio_chip *at91_gpio = h->host_data;
+
+ irq_set_lockdep_class(virq, &gpio_lock_class);
+
+ /*
+ * Can use the "simple" and not "edge" handler since it's
+ * shorter, and the AIC handles interrupts sanely.
+ */
+ irq_set_chip_and_handler(virq, &gpio_irqchip,
+ handle_simple_irq);
+ set_irq_flags(virq, IRQF_VALID);
+ irq_set_chip_data(virq, at91_gpio);
+
+ return 0;
+}
+
+static int at91_gpio_irq_domain_xlate(struct irq_domain *d,
+ struct device_node *ctrlr,
+ const u32 *intspec, unsigned int intsize,
+ irq_hw_number_t *out_hwirq,
+ unsigned int *out_type)
+{
+ struct at91_gpio_chip *at91_gpio = d->host_data;
+ int ret;
+ int pin = at91_gpio->chip.base + intspec[0];
+
+ if (WARN_ON(intsize < 2))
+ return -EINVAL;
+ *out_hwirq = intspec[0];
+ *out_type = intspec[1] & IRQ_TYPE_SENSE_MASK;
+
+ ret = gpio_request(pin, ctrlr->full_name);
+ if (ret)
+ return ret;
+
+ ret = gpio_direction_input(pin);
+ if (ret)
+ return ret;
+
+ return 0;
+}
+
+static struct irq_domain_ops at91_gpio_ops = {
+ .map = at91_gpio_irq_map,
+ .xlate = at91_gpio_irq_domain_xlate,
+};
+
+static int at91_gpio_of_irq_setup(struct device_node *node,
+ struct at91_gpio_chip *at91_gpio)
+{
+ struct at91_gpio_chip *prev = NULL;
+ struct irq_data *d = irq_get_irq_data(at91_gpio->pioc_virq);
+
+ at91_gpio->pioc_hwirq = irqd_to_hwirq(d);
+
+ /* Setup proper .irq_set_type function */
+ gpio_irqchip.irq_set_type = at91_gpio->ops->irq_type;
+
+ /* Disable irqs of this PIO controller */
+ writel_relaxed(~0, at91_gpio->regbase + PIO_IDR);
+
+ /* Setup irq domain */
+ at91_gpio->domain = irq_domain_add_linear(node, at91_gpio->chip.ngpio,
+ &at91_gpio_ops, at91_gpio);
+ if (!at91_gpio->domain)
+ panic("at91_gpio.%d: couldn't allocate irq domain (DT).\n",
+ at91_gpio->pioc_idx);
+
+ /* Setup chained handler */
+ if (at91_gpio->pioc_idx)
+ prev = gpio_chips[at91_gpio->pioc_idx - 1];
+
+ /* The toplevel handler handles one bank of GPIOs, except
+ * on some SoC it can handles up to three...
+ * We only set up the handler for the first of the list.
+ */
+ if (prev && prev->next == at91_gpio)
+ return 0;
+
+ irq_set_chip_data(at91_gpio->pioc_virq, at91_gpio);
+ irq_set_chained_handler(at91_gpio->pioc_virq, gpio_irq_handler);
+
+ return 0;
+}
+
+/* This structure is replicated for each GPIO block allocated at probe time */
+static struct gpio_chip at91_gpio_template = {
+ .request = at91_gpio_request,
+ .free = at91_gpio_free,
+ .direction_input = at91_gpio_direction_input,
+ .get = at91_gpio_get,
+ .direction_output = at91_gpio_direction_output,
+ .set = at91_gpio_set,
+ .to_irq = at91_gpio_to_irq,
+ .dbg_show = at91_gpio_dbg_show,
+ .can_sleep = 0,
+ .ngpio = MAX_NB_GPIO_PER_BANK,
+};
+
+static void __devinit at91_gpio_probe_fixup(void)
+{
+ unsigned i;
+ struct at91_gpio_chip *at91_gpio, *last = NULL;
+
+ for (i = 0; i < gpio_banks; i++) {
+ at91_gpio = gpio_chips[i];
+
+ /*
+ * GPIO controller are grouped on some SoC:
+ * PIOC, PIOD and PIOE can share the same IRQ line
+ */
+ if (last && last->pioc_virq == at91_gpio->pioc_virq)
+ last->next = at91_gpio;
+ last = at91_gpio;
+ }
+}
+
+static struct of_device_id at91_gpio_of_match[] __devinitdata = {
+ { .compatible = "atmel,at91sam9x5-gpio", .data = &at91sam9x5_ops, },
+ { .compatible = "atmel,at91rm9200-gpio", .data = &at91rm9200_ops },
+ { /* sentinel */ }
+};
+
+static int __devinit at91_gpio_probe(struct platform_device *pdev)
+{
+ struct device_node *np = pdev->dev.of_node;
+ struct resource *res;
+ struct at91_gpio_chip *at91_chip = NULL;
+ struct gpio_chip *chip;
+ struct pinctrl_gpio_range *range;
+ int ret = 0;
+ int irq;
+ int alias_idx = of_alias_get_id(np, "gpio");
+ uint32_t ngpio;
+
+ BUG_ON(alias_idx >= ARRAY_SIZE(gpio_chips));
+ if (gpio_chips[alias_idx]) {
+ ret = -EBUSY;
+ goto err;
+ }
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (!res) {
+ ret = -ENOENT;
+ goto err;
+ }
+
+ irq = platform_get_irq(pdev, 0);
+ if (irq < 0) {
+ ret = irq;
+ goto err;
+ }
+
+ at91_chip = devm_kzalloc(&pdev->dev, sizeof(*at91_chip), GFP_KERNEL);
+ if (!at91_chip) {
+ ret = -ENOMEM;
+ goto err;
+ }
+
+ at91_chip->regbase = devm_request_and_ioremap(&pdev->dev, res);
+ if (!at91_chip->regbase) {
+ dev_err(&pdev->dev, "failed to map registers, ignoring.\n");
+ ret = -EBUSY;
+ goto err;
+ }
+
+ at91_chip->ops = (struct at91_pinctrl_mux_ops*)
+ of_match_device(at91_gpio_of_match, &pdev->dev)->data;
+ at91_chip->pioc_virq = irq;
+ at91_chip->pioc_idx = alias_idx;
+
+ at91_chip->clock = clk_get(&pdev->dev, NULL);
+ if (IS_ERR(at91_chip->clock)) {
+ dev_err(&pdev->dev, "failed to get clock, ignoring.\n");
+ goto err;
+ }
+
+ if (clk_prepare(at91_chip->clock))
+ goto clk_prep_err;
+
+ /* enable PIO controller's clock */
+ if (clk_enable(at91_chip->clock)) {
+ dev_err(&pdev->dev, "failed to enable clock, ignoring.\n");
+ goto clk_err;
+ }
+
+ at91_chip->chip = at91_gpio_template;
+
+ chip = &at91_chip->chip;
+ chip->of_node = np;
+ chip->label = dev_name(&pdev->dev);
+ chip->dev = &pdev->dev;
+ chip->owner = THIS_MODULE;
+ chip->base = alias_idx * MAX_NB_GPIO_PER_BANK;
+
+ if (!of_property_read_u32(np, "#gpio-lines", &ngpio)) {
+ if (ngpio >= MAX_NB_GPIO_PER_BANK)
+ pr_err("at91_gpio.%d, gpio-nb >= %d failback to %d\n",
+ alias_idx, MAX_NB_GPIO_PER_BANK, MAX_NB_GPIO_PER_BANK);
+ else
+ chip->ngpio = ngpio;
+ }
+
+ range = &at91_chip->range;
+ range->name = chip->label;
+ range->id = alias_idx;
+ range->pin_base = range->base = range->id * MAX_NB_GPIO_PER_BANK;
+
+ range->npins = chip->ngpio;
+ range->gc = chip;
+
+ ret = gpiochip_add(chip);
+ if (ret)
+ goto clk_err;
+
+ gpio_chips[alias_idx] = at91_chip;
+ gpio_banks = max(gpio_banks, alias_idx + 1);
+
+ at91_gpio_probe_fixup();
+
+ at91_gpio_of_irq_setup(np, at91_chip);
+
+ dev_info(&pdev->dev, "at address %p\n", at91_chip->regbase);
+
+ return 0;
+
+clk_err:
+ clk_unprepare(at91_chip->clock);
+clk_prep_err:
+ clk_put(at91_chip->clock);
+err:
+ dev_err(&pdev->dev, "Failure %i for GPIO %i\n", ret, alias_idx);
+
+ return ret;
+}
+
+static struct platform_driver at91_gpio_driver = {
+ .driver = {
+ .name = "gpio-at91",
+ .owner = THIS_MODULE,
+ .of_match_table = of_match_ptr(at91_gpio_of_match),
+ },
+ .probe = at91_gpio_probe,
+};
+
+static struct platform_driver at91_pinctrl_driver = {
+ .driver = {
+ .name = "pinctrl-at91",
+ .owner = THIS_MODULE,
+ .of_match_table = of_match_ptr(at91_pinctrl_of_match),
+ },
+ .probe = at91_pinctrl_probe,
+ .remove = __devexit_p(at91_pinctrl_remove),
+};
+
+static int __init at91_pinctrl_init(void)
+{
+ int ret;
+
+ ret = platform_driver_register(&at91_gpio_driver);
+ if (ret)
+ return ret;
+ return platform_driver_register(&at91_pinctrl_driver);
+}
+arch_initcall(at91_pinctrl_init);
+
+static void __exit at91_pinctrl_exit(void)
+{
+ platform_driver_unregister(&at91_pinctrl_driver);
+}
+
+module_exit(at91_pinctrl_exit);
+MODULE_AUTHOR("Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>");
+MODULE_DESCRIPTION("Atmel AT91 pinctrl driver");
+MODULE_LICENSE("GPL v2");
#include <linux/atmel_pdc.h>
#include <linux/atmel_serial.h>
#include <linux/uaccess.h>
+#include <linux/pinctrl/consumer.h>
#include <asm/io.h>
#include <asm/ioctls.h>
struct atmel_uart_data *pdata = pdev->dev.platform_data;
void *data;
int ret = -ENODEV;
+ struct pinctrl *pinctrl;
BUILD_BUG_ON(ATMEL_SERIAL_RINGSIZE & (ATMEL_SERIAL_RINGSIZE - 1));
atmel_init_port(port, pdev);
+ pinctrl = devm_pinctrl_get_select_default(&pdev->dev);
+ if (IS_ERR(pinctrl)) {
+ ret = PTR_ERR(pinctrl);
+ goto err;
+ }
+
if (!atmel_use_dma_rx(&port->uart)) {
ret = -ENOMEM;
data = kmalloc(sizeof(struct atmel_uart_char)
projects / platform / adaptation / renesas_rcar / renesas_kernel.git / commitdiff