mirror of
git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
synced 2025-10-31 08:44:41 +00:00
dt-bindings: pinctrl: renesas,rzn1-pinctrl: documentation
The Renesas RZ/N1 device family PINCTRL node description. Based on a patch originally written by Michel Pollet at Renesas. Signed-off-by: Phil Edworthy <phil.edworthy@renesas.com> Reviewed-by: Jacopo Mondi <jacopo+renesas@jmondi.org> Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
This commit is contained in:
Phil Edworthy
Geert Uytterhoeven
parent
a97f340c0a
commit
d6381fbbf2
2 changed files with 294 additions and 0 deletions
|
|
@ -0,0 +1,153 @@
|
|||
Renesas RZ/N1 SoC Pinctrl node description.
|
||||
|
||||
Pin controller node
|
||||
-------------------
|
||||
Required properties:
|
||||
- compatible: SoC-specific compatible string "renesas,<soc-specific>-pinctrl"
|
||||
followed by "renesas,rzn1-pinctrl" as fallback. The SoC-specific compatible
|
||||
strings must be one of:
|
||||
"renesas,r9a06g032-pinctrl" for RZ/N1D
|
||||
"renesas,r9a06g033-pinctrl" for RZ/N1S
|
||||
- reg: Address base and length of the memory area where the pin controller
|
||||
hardware is mapped to.
|
||||
- clocks: phandle for the clock, see the description of clock-names below.
|
||||
- clock-names: Contains the name of the clock:
|
||||
"bus", the bus clock, sometimes described as pclk, for register accesses.
|
||||
|
||||
Example:
|
||||
pinctrl: pin-controller@40067000 {
|
||||
compatible = "renesas,r9a06g032-pinctrl", "renesas,rzn1-pinctrl";
|
||||
reg = <0x40067000 0x1000>, <0x51000000 0x480>;
|
||||
clocks = <&sysctrl R9A06G032_HCLK_PINCONFIG>;
|
||||
clock-names = "bus";
|
||||
};
|
||||
|
||||
Sub-nodes
|
||||
---------
|
||||
|
||||
The child nodes of the pin controller node describe a pin multiplexing
|
||||
function.
|
||||
|
||||
- Pin multiplexing sub-nodes:
|
||||
A pin multiplexing sub-node describes how to configure a set of
|
||||
(or a single) pin in some desired alternate function mode.
|
||||
A single sub-node may define several pin configurations.
|
||||
Please refer to pinctrl-bindings.txt to get to know more on generic
|
||||
pin properties usage.
|
||||
|
||||
The allowed generic formats for a pin multiplexing sub-node are the
|
||||
following ones:
|
||||
|
||||
node-1 {
|
||||
pinmux = <PIN_ID_AND_MUX>, <PIN_ID_AND_MUX>, ... ;
|
||||
GENERIC_PINCONFIG;
|
||||
};
|
||||
|
||||
node-2 {
|
||||
sub-node-1 {
|
||||
pinmux = <PIN_ID_AND_MUX>, <PIN_ID_AND_MUX>, ... ;
|
||||
GENERIC_PINCONFIG;
|
||||
};
|
||||
|
||||
sub-node-2 {
|
||||
pinmux = <PIN_ID_AND_MUX>, <PIN_ID_AND_MUX>, ... ;
|
||||
GENERIC_PINCONFIG;
|
||||
};
|
||||
|
||||
...
|
||||
|
||||
sub-node-n {
|
||||
pinmux = <PIN_ID_AND_MUX>, <PIN_ID_AND_MUX>, ... ;
|
||||
GENERIC_PINCONFIG;
|
||||
};
|
||||
};
|
||||
|
||||
node-3 {
|
||||
pinmux = <PIN_ID_AND_MUX>, <PIN_ID_AND_MUX>, ... ;
|
||||
GENERIC_PINCONFIG;
|
||||
|
||||
sub-node-1 {
|
||||
pinmux = <PIN_ID_AND_MUX>, <PIN_ID_AND_MUX>, ... ;
|
||||
GENERIC_PINCONFIG;
|
||||
};
|
||||
|
||||
...
|
||||
|
||||
sub-node-n {
|
||||
pinmux = <PIN_ID_AND_MUX>, <PIN_ID_AND_MUX>, ... ;
|
||||
GENERIC_PINCONFIG;
|
||||
};
|
||||
};
|
||||
|
||||
Use the latter two formats when pins part of the same logical group need to
|
||||
have different generic pin configuration flags applied. Note that the generic
|
||||
pinconfig in node-3 does not apply to the sub-nodes.
|
||||
|
||||
Client sub-nodes shall refer to pin multiplexing sub-nodes using the phandle
|
||||
of the most external one.
|
||||
|
||||
Eg.
|
||||
|
||||
client-1 {
|
||||
...
|
||||
pinctrl-0 = <&node-1>;
|
||||
...
|
||||
};
|
||||
|
||||
client-2 {
|
||||
...
|
||||
pinctrl-0 = <&node-2>;
|
||||
...
|
||||
};
|
||||
|
||||
Required properties:
|
||||
- pinmux:
|
||||
integer array representing pin number and pin multiplexing configuration.
|
||||
When a pin has to be configured in alternate function mode, use this
|
||||
property to identify the pin by its global index, and provide its
|
||||
alternate function configuration number along with it.
|
||||
When multiple pins are required to be configured as part of the same
|
||||
alternate function they shall be specified as members of the same
|
||||
argument list of a single "pinmux" property.
|
||||
Integers values in the "pinmux" argument list are assembled as:
|
||||
(PIN | MUX_FUNC << 8)
|
||||
where PIN directly corresponds to the pl_gpio pin number and MUX_FUNC is
|
||||
one of the alternate function identifiers defined in:
|
||||
<include/dt-bindings/pinctrl/rzn1-pinctrl.h>
|
||||
These identifiers collapse the IO Multiplex Configuration Level 1 and
|
||||
Level 2 numbers that are detailed in the hardware reference manual into a
|
||||
single number. The identifiers for Level 2 are simply offset by 10.
|
||||
Additional identifiers are provided to specify the MDIO source peripheral.
|
||||
|
||||
Optional generic pinconf properties:
|
||||
- bias-disable - disable any pin bias
|
||||
- bias-pull-up - pull up the pin with 50 KOhm
|
||||
- bias-pull-down - pull down the pin with 50 KOhm
|
||||
- bias-high-impedance - high impedance mode
|
||||
- drive-strength - sink or source at most 4, 6, 8 or 12 mA
|
||||
|
||||
Example:
|
||||
A serial communication interface with a TX output pin and an RX input pin.
|
||||
|
||||
&pinctrl {
|
||||
pins_uart0: pins_uart0 {
|
||||
pinmux = <
|
||||
RZN1_PINMUX(103, RZN1_FUNC_UART0_I) /* UART0_TXD */
|
||||
RZN1_PINMUX(104, RZN1_FUNC_UART0_I) /* UART0_RXD */
|
||||
>;
|
||||
};
|
||||
};
|
||||
|
||||
Example 2:
|
||||
Here we set the pull up on the RXD pin of the UART.
|
||||
|
||||
&pinctrl {
|
||||
pins_uart0: pins_uart0 {
|
||||
pinmux = <RZN1_PINMUX(103, RZN1_FUNC_UART0_I)>; /* TXD */
|
||||
|
||||
pins_uart6_rx {
|
||||
pinmux = <RZN1_PINMUX(104, RZN1_FUNC_UART0_I)>; /* RXD */
|
||||
bias-pull-up;
|
||||
};
|
||||
};
|
||||
};
|
||||
141
include/dt-bindings/pinctrl/rzn1-pinctrl.h
Normal file
141
include/dt-bindings/pinctrl/rzn1-pinctrl.h
Normal file
|
|
@ -0,0 +1,141 @@
|
|||
/* SPDX-License-Identifier: GPL-2.0 */
|
||||
/*
|
||||
* Defines macros and constants for Renesas RZ/N1 pin controller pin
|
||||
* muxing functions.
|
||||
*/
|
||||
#ifndef __DT_BINDINGS_RZN1_PINCTRL_H
|
||||
#define __DT_BINDINGS_RZN1_PINCTRL_H
|
||||
|
||||
#define RZN1_PINMUX(_gpio, _func) \
|
||||
(((_func) << 8) | (_gpio))
|
||||
|
||||
/*
|
||||
* Given the different levels of muxing on the SoC, it was decided to
|
||||
* 'linearize' them into one numerical space. So mux level 1, 2 and the MDIO
|
||||
* muxes are all represented by one single value.
|
||||
*
|
||||
* You can derive the hardware value pretty easily too, as
|
||||
* 0...9 are Level 1
|
||||
* 10...71 are Level 2. The Level 2 mux will be set to this
|
||||
* value - RZN1_FUNC_L2_OFFSET, and the Level 1 mux will be
|
||||
* set accordingly.
|
||||
* 72...103 are for the 2 MDIO muxes.
|
||||
*/
|
||||
#define RZN1_FUNC_HIGHZ 0
|
||||
#define RZN1_FUNC_0L 1
|
||||
#define RZN1_FUNC_CLK_ETH_MII_RGMII_RMII 2
|
||||
#define RZN1_FUNC_CLK_ETH_NAND 3
|
||||
#define RZN1_FUNC_QSPI 4
|
||||
#define RZN1_FUNC_SDIO 5
|
||||
#define RZN1_FUNC_LCD 6
|
||||
#define RZN1_FUNC_LCD_E 7
|
||||
#define RZN1_FUNC_MSEBIM 8
|
||||
#define RZN1_FUNC_MSEBIS 9
|
||||
#define RZN1_FUNC_L2_OFFSET 10 /* I'm Special */
|
||||
|
||||
#define RZN1_FUNC_HIGHZ1 (RZN1_FUNC_L2_OFFSET + 0)
|
||||
#define RZN1_FUNC_ETHERCAT (RZN1_FUNC_L2_OFFSET + 1)
|
||||
#define RZN1_FUNC_SERCOS3 (RZN1_FUNC_L2_OFFSET + 2)
|
||||
#define RZN1_FUNC_SDIO_E (RZN1_FUNC_L2_OFFSET + 3)
|
||||
#define RZN1_FUNC_ETH_MDIO (RZN1_FUNC_L2_OFFSET + 4)
|
||||
#define RZN1_FUNC_ETH_MDIO_E1 (RZN1_FUNC_L2_OFFSET + 5)
|
||||
#define RZN1_FUNC_USB (RZN1_FUNC_L2_OFFSET + 6)
|
||||
#define RZN1_FUNC_MSEBIM_E (RZN1_FUNC_L2_OFFSET + 7)
|
||||
#define RZN1_FUNC_MSEBIS_E (RZN1_FUNC_L2_OFFSET + 8)
|
||||
#define RZN1_FUNC_RSV (RZN1_FUNC_L2_OFFSET + 9)
|
||||
#define RZN1_FUNC_RSV_E (RZN1_FUNC_L2_OFFSET + 10)
|
||||
#define RZN1_FUNC_RSV_E1 (RZN1_FUNC_L2_OFFSET + 11)
|
||||
#define RZN1_FUNC_UART0_I (RZN1_FUNC_L2_OFFSET + 12)
|
||||
#define RZN1_FUNC_UART0_I_E (RZN1_FUNC_L2_OFFSET + 13)
|
||||
#define RZN1_FUNC_UART1_I (RZN1_FUNC_L2_OFFSET + 14)
|
||||
#define RZN1_FUNC_UART1_I_E (RZN1_FUNC_L2_OFFSET + 15)
|
||||
#define RZN1_FUNC_UART2_I (RZN1_FUNC_L2_OFFSET + 16)
|
||||
#define RZN1_FUNC_UART2_I_E (RZN1_FUNC_L2_OFFSET + 17)
|
||||
#define RZN1_FUNC_UART0 (RZN1_FUNC_L2_OFFSET + 18)
|
||||
#define RZN1_FUNC_UART0_E (RZN1_FUNC_L2_OFFSET + 19)
|
||||
#define RZN1_FUNC_UART1 (RZN1_FUNC_L2_OFFSET + 20)
|
||||
#define RZN1_FUNC_UART1_E (RZN1_FUNC_L2_OFFSET + 21)
|
||||
#define RZN1_FUNC_UART2 (RZN1_FUNC_L2_OFFSET + 22)
|
||||
#define RZN1_FUNC_UART2_E (RZN1_FUNC_L2_OFFSET + 23)
|
||||
#define RZN1_FUNC_UART3 (RZN1_FUNC_L2_OFFSET + 24)
|
||||
#define RZN1_FUNC_UART3_E (RZN1_FUNC_L2_OFFSET + 25)
|
||||
#define RZN1_FUNC_UART4 (RZN1_FUNC_L2_OFFSET + 26)
|
||||
#define RZN1_FUNC_UART4_E (RZN1_FUNC_L2_OFFSET + 27)
|
||||
#define RZN1_FUNC_UART5 (RZN1_FUNC_L2_OFFSET + 28)
|
||||
#define RZN1_FUNC_UART5_E (RZN1_FUNC_L2_OFFSET + 29)
|
||||
#define RZN1_FUNC_UART6 (RZN1_FUNC_L2_OFFSET + 30)
|
||||
#define RZN1_FUNC_UART6_E (RZN1_FUNC_L2_OFFSET + 31)
|
||||
#define RZN1_FUNC_UART7 (RZN1_FUNC_L2_OFFSET + 32)
|
||||
#define RZN1_FUNC_UART7_E (RZN1_FUNC_L2_OFFSET + 33)
|
||||
#define RZN1_FUNC_SPI0_M (RZN1_FUNC_L2_OFFSET + 34)
|
||||
#define RZN1_FUNC_SPI0_M_E (RZN1_FUNC_L2_OFFSET + 35)
|
||||
#define RZN1_FUNC_SPI1_M (RZN1_FUNC_L2_OFFSET + 36)
|
||||
#define RZN1_FUNC_SPI1_M_E (RZN1_FUNC_L2_OFFSET + 37)
|
||||
#define RZN1_FUNC_SPI2_M (RZN1_FUNC_L2_OFFSET + 38)
|
||||
#define RZN1_FUNC_SPI2_M_E (RZN1_FUNC_L2_OFFSET + 39)
|
||||
#define RZN1_FUNC_SPI3_M (RZN1_FUNC_L2_OFFSET + 40)
|
||||
#define RZN1_FUNC_SPI3_M_E (RZN1_FUNC_L2_OFFSET + 41)
|
||||
#define RZN1_FUNC_SPI4_S (RZN1_FUNC_L2_OFFSET + 42)
|
||||
#define RZN1_FUNC_SPI4_S_E (RZN1_FUNC_L2_OFFSET + 43)
|
||||
#define RZN1_FUNC_SPI5_S (RZN1_FUNC_L2_OFFSET + 44)
|
||||
#define RZN1_FUNC_SPI5_S_E (RZN1_FUNC_L2_OFFSET + 45)
|
||||
#define RZN1_FUNC_SGPIO0_M (RZN1_FUNC_L2_OFFSET + 46)
|
||||
#define RZN1_FUNC_SGPIO1_M (RZN1_FUNC_L2_OFFSET + 47)
|
||||
#define RZN1_FUNC_GPIO (RZN1_FUNC_L2_OFFSET + 48)
|
||||
#define RZN1_FUNC_CAN (RZN1_FUNC_L2_OFFSET + 49)
|
||||
#define RZN1_FUNC_I2C (RZN1_FUNC_L2_OFFSET + 50)
|
||||
#define RZN1_FUNC_SAFE (RZN1_FUNC_L2_OFFSET + 51)
|
||||
#define RZN1_FUNC_PTO_PWM (RZN1_FUNC_L2_OFFSET + 52)
|
||||
#define RZN1_FUNC_PTO_PWM1 (RZN1_FUNC_L2_OFFSET + 53)
|
||||
#define RZN1_FUNC_PTO_PWM2 (RZN1_FUNC_L2_OFFSET + 54)
|
||||
#define RZN1_FUNC_PTO_PWM3 (RZN1_FUNC_L2_OFFSET + 55)
|
||||
#define RZN1_FUNC_PTO_PWM4 (RZN1_FUNC_L2_OFFSET + 56)
|
||||
#define RZN1_FUNC_DELTA_SIGMA (RZN1_FUNC_L2_OFFSET + 57)
|
||||
#define RZN1_FUNC_SGPIO2_M (RZN1_FUNC_L2_OFFSET + 58)
|
||||
#define RZN1_FUNC_SGPIO3_M (RZN1_FUNC_L2_OFFSET + 59)
|
||||
#define RZN1_FUNC_SGPIO4_S (RZN1_FUNC_L2_OFFSET + 60)
|
||||
#define RZN1_FUNC_MAC_MTIP_SWITCH (RZN1_FUNC_L2_OFFSET + 61)
|
||||
|
||||
#define RZN1_FUNC_MDIO_OFFSET (RZN1_FUNC_L2_OFFSET + 62)
|
||||
|
||||
/* These are MDIO0 peripherals for the RZN1_FUNC_ETH_MDIO function */
|
||||
#define RZN1_FUNC_MDIO0_HIGHZ (RZN1_FUNC_MDIO_OFFSET + 0)
|
||||
#define RZN1_FUNC_MDIO0_GMAC0 (RZN1_FUNC_MDIO_OFFSET + 1)
|
||||
#define RZN1_FUNC_MDIO0_GMAC1 (RZN1_FUNC_MDIO_OFFSET + 2)
|
||||
#define RZN1_FUNC_MDIO0_ECAT (RZN1_FUNC_MDIO_OFFSET + 3)
|
||||
#define RZN1_FUNC_MDIO0_S3_MDIO0 (RZN1_FUNC_MDIO_OFFSET + 4)
|
||||
#define RZN1_FUNC_MDIO0_S3_MDIO1 (RZN1_FUNC_MDIO_OFFSET + 5)
|
||||
#define RZN1_FUNC_MDIO0_HWRTOS (RZN1_FUNC_MDIO_OFFSET + 6)
|
||||
#define RZN1_FUNC_MDIO0_SWITCH (RZN1_FUNC_MDIO_OFFSET + 7)
|
||||
/* These are MDIO0 peripherals for the RZN1_FUNC_ETH_MDIO_E1 function */
|
||||
#define RZN1_FUNC_MDIO0_E1_HIGHZ (RZN1_FUNC_MDIO_OFFSET + 8)
|
||||
#define RZN1_FUNC_MDIO0_E1_GMAC0 (RZN1_FUNC_MDIO_OFFSET + 9)
|
||||
#define RZN1_FUNC_MDIO0_E1_GMAC1 (RZN1_FUNC_MDIO_OFFSET + 10)
|
||||
#define RZN1_FUNC_MDIO0_E1_ECAT (RZN1_FUNC_MDIO_OFFSET + 11)
|
||||
#define RZN1_FUNC_MDIO0_E1_S3_MDIO0 (RZN1_FUNC_MDIO_OFFSET + 12)
|
||||
#define RZN1_FUNC_MDIO0_E1_S3_MDIO1 (RZN1_FUNC_MDIO_OFFSET + 13)
|
||||
#define RZN1_FUNC_MDIO0_E1_HWRTOS (RZN1_FUNC_MDIO_OFFSET + 14)
|
||||
#define RZN1_FUNC_MDIO0_E1_SWITCH (RZN1_FUNC_MDIO_OFFSET + 15)
|
||||
|
||||
/* These are MDIO1 peripherals for the RZN1_FUNC_ETH_MDIO function */
|
||||
#define RZN1_FUNC_MDIO1_HIGHZ (RZN1_FUNC_MDIO_OFFSET + 16)
|
||||
#define RZN1_FUNC_MDIO1_GMAC0 (RZN1_FUNC_MDIO_OFFSET + 17)
|
||||
#define RZN1_FUNC_MDIO1_GMAC1 (RZN1_FUNC_MDIO_OFFSET + 18)
|
||||
#define RZN1_FUNC_MDIO1_ECAT (RZN1_FUNC_MDIO_OFFSET + 19)
|
||||
#define RZN1_FUNC_MDIO1_S3_MDIO0 (RZN1_FUNC_MDIO_OFFSET + 20)
|
||||
#define RZN1_FUNC_MDIO1_S3_MDIO1 (RZN1_FUNC_MDIO_OFFSET + 21)
|
||||
#define RZN1_FUNC_MDIO1_HWRTOS (RZN1_FUNC_MDIO_OFFSET + 22)
|
||||
#define RZN1_FUNC_MDIO1_SWITCH (RZN1_FUNC_MDIO_OFFSET + 23)
|
||||
/* These are MDIO1 peripherals for the RZN1_FUNC_ETH_MDIO_E1 function */
|
||||
#define RZN1_FUNC_MDIO1_E1_HIGHZ (RZN1_FUNC_MDIO_OFFSET + 24)
|
||||
#define RZN1_FUNC_MDIO1_E1_GMAC0 (RZN1_FUNC_MDIO_OFFSET + 25)
|
||||
#define RZN1_FUNC_MDIO1_E1_GMAC1 (RZN1_FUNC_MDIO_OFFSET + 26)
|
||||
#define RZN1_FUNC_MDIO1_E1_ECAT (RZN1_FUNC_MDIO_OFFSET + 27)
|
||||
#define RZN1_FUNC_MDIO1_E1_S3_MDIO0 (RZN1_FUNC_MDIO_OFFSET + 28)
|
||||
#define RZN1_FUNC_MDIO1_E1_S3_MDIO1 (RZN1_FUNC_MDIO_OFFSET + 29)
|
||||
#define RZN1_FUNC_MDIO1_E1_HWRTOS (RZN1_FUNC_MDIO_OFFSET + 30)
|
||||
#define RZN1_FUNC_MDIO1_E1_SWITCH (RZN1_FUNC_MDIO_OFFSET + 31)
|
||||
|
||||
#define RZN1_FUNC_MAX (RZN1_FUNC_MDIO_OFFSET + 32)
|
||||
|
||||
#endif /* __DT_BINDINGS_RZN1_PINCTRL_H */
|
||||
Loading…
Add table
Reference in a new issue