Add a DM port of Marvell pin control driver.
The A8K SoC family contains several silicone dies interconnected
in a single package. Every die is normally equipped with its own
pin controller unit.
There are 2 pin controllers in A70x0 SoC and 3 in A80x0 SoC.
Signed-off-by: Konstantin Porotchkin <kostap@marvell.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Cc: Simon Glass <sjg@chromium.org>
Cc: Stefan Roese <sr@denx.de>
Cc: Nadav Haklai <nadavh@marvell.com>
Cc: Neta Zur Hershkovits <neta@marvell.com>
Cc: Omri Itach <omrii@marvell.com>
Cc: Igal Liberman <igall@marvell.com>
Cc: Haim Boot <hayim@marvell.com>
Cc: Hanna Hawa <hannah@marvell.com>
Signed-off-by: Stefan Roese <sr@denx.de>
--- /dev/null
+/*
+ * Copyright (C) 2016 Marvell International Ltd.
+ *
+ * SPDX-License-Identifier: GPL-2.0
+ * https://spdx.org/licenses
+ */
+
+#ifndef _SOC_INFO_H_
+#define _SOC_INFO_H_
+
+/* Pin Ctrl driver definitions */
+#define BITS_PER_PIN 4
+#define PIN_FUNC_MASK ((1 << BITS_PER_PIN) - 1)
+#define PIN_REG_SHIFT 3
+#define PIN_FIELD_MASK ((1 << PIN_REG_SHIFT) - 1)
+
+#endif /* _SOC_INFO_H_ */
--- /dev/null
+ Functions of Armada APN806 pin controller
+ Function 0x0 for any MPP ID activates GPIO pin mode
+----------------------------------------------------------------------
+MPP# 0x1 0x2 0x3 0x4
+----------------------------------------------------------------------
+0 SDIO_CLK - SPI0_CLK -
+1 SDIO_CMD - SPI0_MISO -
+2 SDIO_D[0] - SPI0_MOSI -
+3 SDIO_D[1] - SPI0_CS0n -
+4 SDIO_D[2] - I2C0_SDA SPI0_CS1n
+5 SDIO_D[3] - I2C0_SCK -
+6 SDIO_DS - - -
+7 SDIO_D[4] - UART1_RXD -
+8 SDIO_D[5] - UART1_TXD -
+9 SDIO_D[6] - SPI0_CS1n -
+10 SDIO_D[7] - - -
+11 - - UART0_TXD -
+12 SDIO_CARD_PW_OFF SDIO_HW_RST - -
+13 - - - -
+14 - - - -
+15 - - - -
+16 - - - -
+17 - - - -
+18 - - - -
+19 - - UART0_RXD -
--- /dev/null
+ Functions of Armada CP110 pin controller
+ Function 0x0 for any MPP ID activates GPIO pin mode
+ Function 0xc for any MPP ID activates DEBUG_BUS pin mode
+-------------------------------------------------------------------------------
+MPP# 0x1 0x2 0x3 0x4
+-------------------------------------------------------------------------------
+0 DEV_ALE[1] AU_I2SMCLK GE0_RXD[3] TDM_PCLK
+1 DEV_ALE[0] AU_I2SDO_SPDIFO GE0_RXD[2] TDM_DRX
+2 DEV_AD[15] AU_I2SEXTCLK GE0_RXD[1] TDM_DTX
+3 DEV_AD[14] AU_I2SLRCLK GE0_RXD[0] TDM_FSYNC
+4 DEV_AD[13] AU_I2SBCLK GE0_RXCTL TDM_RSTn
+5 DEV_AD[12] AU_I2SDI GE0_RXCLK TDM_INTn
+6 DEV_AD[11] - GE0_TXD[3] SPI0_CSn[2]
+7 DEV_AD[10] - GE0_TXD[2] SPI0_CSn[1]
+8 DEV_AD[9] - GE0_TXD[1] SPI0_CSn[0]
+9 DEV_AD[8] - GE0_TXD[0] SPI0_MOSI
+10 DEV_READYn - GE0_TXCTL SPI0_MISO
+11 DEV_WEn[1] - GE0_TXCLKOUT SPI0_CLK
+12 DEV_CLK_OUT NF_RBn[1] SPI1_CSn[1] GE0_RXCLK
+13 DEV_BURSTn NF_RBn[0] SPI1_MISO GE0_RXCTL
+14 DEV_BOOTCSn DEV_CSn[0] SPI1_CSn[0] SPI0_CSn[3]
+15 DEV_AD[7] - SPI1_MOSI -
+16 DEV_AD[6] - SPI1_CLK -
+17 DEV_AD[5] - - GE0_TXD[3]
+18 DEV_AD[4] - - GE0_TXD[2]
+19 DEV_AD[3] - - GE0_TXD[1]
+20 DEV_AD[2] - - GE0_TXD[0]
+21 DEV_AD[1] - - GE0_TXCTL
+22 DEV_AD[0] - - GE0_TXCLKOUT
+23 DEV_A[1] - - -
+24 DEV_A[0] - - -
+25 DEV_OEn - - - -
+26 DEV_WEn[0] - - -
+27 DEV_CSn[0] SPI1_MISO MSS_GPIO[4] GE0_RXD[3]
+28 DEV_CSn[1] SPI1_CSn[0] MSS_GPIO[5] GE0_RXD[2]
+29 DEV_CSn[2] SPI1_MOSI MSS_GPIO[6] GE0_RXD[1]
+30 DEV_CSn[3] SPI1_CLK MSS_GPIO[7] GE0_RXD[0]
+31 DEV_A[2] - MSS_GPIO[4] -
+32 MII_COL MII_TXERR MSS_SPI_MISO TDM_DRX
+33 MII_TXCLK SDIO_PWR1[0] MSS_SPI_CSn TDM_FSYNC
+34 MII_RXERR SDIO_PWR1[1] MSS_SPI_MOSI TDM_DTX
+35 SATA1_PRESENT_ACTIVEn TWSI1_SDA MSS_SPI_CLK TDM_PCLK
+36 SYNCE2_CLK TWSI1_SCK PTP_CLK SYNCE1_CLK
+37 UART2_RXD TWSI0_SCK PTP_PCLK_OUT TDM_INTn
+38 UART2_TXD TWSI0_SDA PTP_PULSE TDM_RSTn
+39 SDIO_WR_PROTECT - - AU_I2SBCLK PTP_CLK
+40 SDIO_PWR1[1] SYNCE1_CLK MSS_TWSI_SDA AU_I2SDO_SPDIFO
+41 SDIO_PWR1[0] SDIO_BUS_PWR MSS_TWSI_SCK AU_I2SLRCLK
+42 SDIO_V18_EN SDIO_WR_PROTECT SYNCE2_CLK AU_I2SMCLK
+43 SDIO_CARD_DETECT - SYNCE1_CLK AU_I2SEXTCLK
+44 GE1_TXD[2] - - -
+45 GE1_TXD[3] - - -
+46 GE1_TXD[1] - - -
+47 GE1_TXD[0] - - -
+48 GE1_TXCTL_MII_TXEN - - -
+49 GE1_TXCLKOUT MII_CRS - -
+50 GE1_RXCLK MSS_TWSI_SDA - -
+51 GE1_RXD[0] MSS_TWSI_SCK - -
+52 GE1_RXD[1] SYNCE1_CLK - SYNCE2_CLK
+53 GE1_RXD[2] - PTP_CLK -
+54 GE1_RXD[3] SYNCE2_CLK PTP_PCLK_OUT SYNCE1_CLK
+55 GE1_RXCTL_MII_RXDV - PTP_PULSE -
+56 - - - TDM_DRX
+57 - MSS_TWSI_SDA PTP_PCLK_OUT TDM_INTn
+58 - MSS_TWSI_SCK PTP_CLK TDM_RSTn
+59 MSS_GPIO[7] SYNCE2_CLK - TDM_FSYNC
+60 MSS_GPIO[6] - PTP_PULSE TDM_DTX
+61 MSS_GPIO[5] - PTP_CLK TDM_PCLK
+62 MSS_GPIO[4] SYNCE1_CLK PTP_PCLK_OUT -
+
+-------------------------------------------------------------------------------
+MPP# 0x5 0x6 0x7
+-------------------------------------------------------------------------------
+0 - PTP_PULSE MSS_TWSI_SDA
+1 - PTP_CLK MSS_TWSI_SCK
+2 MSS_UART_RXD PTP_PCLK_OUT TWSI1_SCK
+3 MSS_UART_TXD PCIe_RSTOUTn TWSI1_SDA
+4 MSS_UART_RXD UART1_CTS PCIe0_CLKREQ
+5 MSS_UART_TXD UART1_RTS PCIe1_CLKREQ
+6 AU_I2SEXTCLK SATA1_PRESENT_ACTIVEn PCIe2_CLKREQ
+7 SPI1_CSn[1] SATA0_PRESENT_ACTIVEn LED_DATA
+8 SPI1_CSn[0] UART0_CTS LED_STB
+9 SPI1_MOSI - PCIe_RSTOUTn
+10 SPI1_MISO UART0_CTS SATA1_PRESENT_ACTIVEn
+11 SPI1_CLK UART0_RTS LED_CLK
+12 - - -
+13 - - -
+14 AU_I2SEXTCLK SPI0_MISO SATA0_PRESENT_ACTIVEn
+15 - SPI0_MOSI -
+16 - - -
+17 - - -
+18 - - -
+19 - - -
+20 - - -
+21 - - -
+22 - - -
+23 AU_I2SMCLK - -
+24 AU_I2SLRCLK - -
+25 AU_I2SDO_SPDIFO - -
+26 AU_I2SBCLK - -
+27 SPI0_CSn[4] - -
+28 SPI0_CSn[5] PCIe2_CLKREQ PTP_PULSE
+29 SPI0_CSn[6] PCIe1_CLKREQ PTP_CLK
+30 SPI0_CSn[7] PCIe0_CLKREQ PTP_PCLK_OUT
+31 - PCIe_RSTOUTn -
+32 AU_I2SEXTCLK AU_I2SDI GE_MDIO
+33 AU_I2SMCLK SDIO_BUS_PWR -
+34 AU_I2SLRCLK SDIO_WR_PROTECT GE_MDC
+35 AU_I2SDO_SPDIFO SDIO_CARD_DETECT XG_MDIO
+36 AU_I2SBCLK SATA0_PRESENT_ACTIVEn XG_MDC
+37 MSS_TWSI_SCK SATA1_PRESENT_ACTIVEn GE_MDC
+38 MSS_TWSI_SDA SATA0_PRESENT_ACTIVEn GE_MDIO
+39 SPI0_CSn[1] - -
+40 PTP_PCLK_OUT SPI0_CLK UART1_TXD
+41 PTP_PULSE SPI0_MOSI UART1_RXD
+42 MSS_UART_TXD SPI0_MISO UART1_CTS
+43 MSS_UART_RXD SPI0_CSn[0] UART1_RTS
+44 - - UART0_RTS
+45 - - UART0_TXD
+46 - - UART1_RTS
+47 SPI1_CLK - UART1_TXD
+48 SPI1_MOSI - -
+49 SPI1_MISO - UART1_RXD
+50 SPI1_CSn[0] UART2_TXD UART0_RXD
+51 SPI1_CSn[1] UART2_RXD UART0_CTS
+52 SPI1_CSn[2] - UART1_CTS
+53 SPI1_CSn[3] - UART1_RXD
+54 - - -
+55 - - -
+56 AU_I2SDO_SPDIFO SPI0_CLK UART1_RXD
+57 AU_I2SBCLK SPI0_MOSI UART1_TXD
+58 AU_I2SDI SPI0_MISO UART1_CTS
+59 AU_I2SLRCLK SPI0_CSn[0] UART0_CTS
+60 AU_I2SMCLK SPI0_CSn[1] UART0_RTS
+61 AU_I2SEXTCLK SPI0_CSn[2] UART0_TXD
+62 SATA1_PRESENT_ACTIVEn SPI0_CSn[3] UART0_RXD
+
+-------------------------------------------------------------------------------
+MPP# 0x8 0x9 0xA
+-------------------------------------------------------------------------------
+0 UART0_RXD SATA0_PRESENT_ACTIVEn GE_MDIO
+1 UART0_TXD SATA1_PRESENT_ACTIVEn GE_MDC
+2 UART1_RXD SATA0_PRESENT_ACTIVEn XG_MDC
+3 UART1_TXD SATA1_PRESENT_ACTIVEn XG_MDIO
+4 UART3_RXD - GE_MDC
+5 UART3_TXD - GE_MDIO
+6 UART0_RXD PTP_PULSE -
+7 UART0_TXD PTP_CLK -
+8 UART2_RXD PTP_PCLK_OUT SYNCE1_CLK
+9 - - SYNCE2_CLK
+10 - - -
+11 UART2_TXD SATA0_PRESENT_ACTIVEn -
+12 - - -
+13 MSS_SPI_MISO - -
+14 MSS_SPI_CSn - -
+15 MSS_SPI_MOSI - -
+16 MSS_SPI_CLK - -
+17 - - -
+18 - - -
+19 - - -
+20 - - -
+21 - - -
+22 - - -
+23 - - -
+24 - - -
+25 - - -
+26 - - -
+27 GE_MDIO SATA0_PRESENT_ACTIVEn UART0_RTS
+28 GE_MDC SATA1_PRESENT_ACTIVEn UART0_CTS
+29 MSS_TWSI_SDA SATA0_PRESENT_ACTIVEn UART0_RXD
+30 MSS_TWSI_SCK SATA1_PRESENT_ACTIVEn UART0_TXD
+31 GE_MDC - -
+32 SDIO_V18_EN PCIe1_CLKREQ MSS_GPIO[0]
+33 XG_MDIO PCIe2_CLKREQ MSS_GPIO[1]
+34 - PCIe0_CLKREQ MSS_GPIO[2]
+35 GE_MDIO PCIe_RSTOUTn MSS_GPIO[3]
+36 GE_MDC PCIe2_CLKREQ MSS_GPIO[5]
+37 XG_MDC PCIe1_CLKREQ MSS_GPIO[6]
+38 XG_MDIO AU_I2SEXTCLK MSS_GPIO[7]
+39 SATA1_PRESENT_ACTIVEn MSS_GPIO[0]
+40 GE_MDIO SATA0_PRESENT_ACTIVEn MSS_GPIO[1]
+41 GE_MDC SATA1_PRESENT_ACTIVEn MSS_GPIO[2]
+42 XG_MDC SATA0_PRESENT_ACTIVEn MSS_GPIO[4]
+43 XG_MDIO SATA1_PRESENT_ACTIVEn MSS_GPIO[5]
+44 - - -
+45 - PCIe_RSTOUTn -
+46 - - -
+47 GE_MDC CLKOUT -
+48 XG_MDC - -
+49 GE_MDIO PCIe0_CLKREQ SDIO_V18_EN
+50 XG_MDIO - SDIO_PWR1[1]
+51 - - SDIO_PWR1[0]
+52 LED_CLK PCIe_RSTOUTn PCIe0_CLKREQ
+53 LED_STB - -
+54 LED_DATA - SDIO_HW_RST
+55 - - SDIO_LED
+56 - SATA1_PRESENT_ACTIVEn -
+57 - SATA0_PRESENT_ACTIVEn -
+58 LED_CLK - -
+59 LED_STB UART1_TXD -
+60 LED_DATA UART1_RXD -
+61 UART2_TXD SATA1_PRESENT_ACTIVEn GE_MDIO
+62 UART2_RXD SATA0_PRESENT_ACTIVEn GE_MDC
+
+-------------------------------------------------------------------------------
+MPP# 0xB 0xD 0xE
+-------------------------------------------------------------------------------
+0 - - -
+1 - - -
+2 - - -
+3 - - -
+4 - - -
+5 - - -
+6 - - -
+7 - - -
+8 - - -
+9 - - -
+10 - - -
+11 - CLKOUT_MPP_11 -
+12 - - -
+13 - - -
+14 - - -
+15 PTP_PULSE_CP2CP SAR_IN[5] -
+16 - SAR_IN[3] -
+17 - SAR_IN[6] -
+18 PTP_CLK_CP2CP SAR_IN[11] -
+19 WAKEUP_OUT_CP2CP SAR_IN[7] -
+20 - SAR_IN[9] -
+21 SEI_IN_CP2CP SAR_IN[8] -
+22 WAKEUP_IN_CP2CP SAR_IN[10] -
+23 LINK_RD_IN_CP2CP SAR_IN[4] -
+24 - - -
+25 - CLKOUT_MPP_25 -
+26 - SAR_IN[0] -
+27 REI_IN_CP2CP SAR_IN[1] -
+28 LED_DATA SAR_IN[2] -
+29 LED_STB AVS_FB_IN_CP2CP -
+30 LED_CLK SAR_IN[13] -
+31 - - -
+32 - SAR_CP2CP_OUT[0] -
+33 - SAR_CP2CP_OUT[1] -
+34 - SAR_CP2CP_OUT[2] -
+35 - SAR_CP2CP_OUT[3] -
+36 - CLKIN -
+37 LINK_RD_OUT_CP2CP SAR_CP2CP_OUT[4] -
+38 PTP_PULSE_CP2CP SAR_CP2CP_OUT[5] -
+39 - AVS_FB_OUT_CP2CP -
+40 - - -
+41 REI_OUT_CP2CP - -
+42 - SAR_CP2CP_OUT[9] -
+43 WAKEUP_OUT_CP2CP SAR_CP2CP_OUT[10] -
+44 PTP_CLK_CP2CP SAR_CP2CP_OUT[11] -
+45 - SAR_CP2CP_OUT[6] -
+46 - SAR_CP2CP_OUT[13] -
+47 - - -
+48 WAKEUP_IN_CP2CP SAR_CP2CP_OUT[7] -
+49 SEI_OUT_CP2CP SAR_CP2CP_OUT[8] -
+50 - - -
+51 - - -
+52 - - -
+53 SDIO_LED - -
+54 SDIO_WR_PROTECT - -
+55 SDIO_CARD_DETECT - -
+56 - - SDIO0_CLK
+57 - - SDIO0_CMD
+58 - - SDIO0_D[0]
+59 - - SDIO0_D[1]
+60 - - SDIO0_D[2]
+61 - - SDIO0_D[3]
+62 - - -
--- /dev/null
+The pinctrl driver enables Marvell Armada 8K SoCs to configure the multi-purpose
+pins (mpp) to a specific function.
+A Marvell SoC pin configuration node is a node of a group of pins which can
+be used for a specific device or function. Each node requires one or more
+mpp pins or group of pins and a mpp function common to all pins.
+
+Required properties for the pinctrl driver:
+- compatible: "marvell,mvebu-pinctrl",
+ "marvell,armada-ap806-pinctrl",
+ "marvell,a70x0-pinctrl",
+ "marvell,a80x0-cp0-pinctrl",
+ "marvell,a80x0-cp1-pinctrl"
+- bank-name: A string defining the pinc controller bank name
+- reg: A pair of values defining the pin controller base address
+ and the address space
+- pin-count: Numeric value defining the amount of multi purpose pins
+ included in this bank
+- max-func: Numeric value defining the maximum function value for
+ pins in this bank
+- pin-func: Array of pin function values for every pin in the bank.
+ When the function value for a specific pin equal 0xFF,
+ the pin configuration is skipped and a default function
+ value is used for this pin.
+
+The A8K is a hybrid SoC that contains several silicon dies interconnected in
+a single package. Each such die may have a separate pin controller.
+
+Example:
+/ {
+ ap806 {
+ config-space {
+ pinctl: pinctl@6F4000 {
+ compatible = "marvell,mvebu-pinctrl",
+ "marvell,armada-ap806-pinctrl";
+ bank-name ="apn-806";
+ reg = <0x6F4000 0x10>;
+ pin-count = <20>;
+ max-func = <3>;
+ /* MPP Bus:
+ SPI0 [0-3]
+ I2C0 [4-5]
+ UART0 [11,19]
+ */
+ /* 0 1 2 3 4 5 6 7 8 9 */
+ pin-func = < 3 3 3 3 3 3 0 0 0 0
+ 0 3 0 0 0 0 0 0 0 3>;
+ };
+ };
+ };
+
+ cp110-master {
+ config-space {
+ cpm_pinctl: pinctl@44000 {
+ compatible = "marvell,mvebu-pinctrl",
+ "marvell,a70x0-pinctrl",
+ "marvell,a80x0-cp0-pinctrl";
+ bank-name ="cp0-110";
+ reg = <0x440000 0x20>;
+ pin-count = <63>;
+ max-func = <0xf>;
+ /* MPP Bus:
+ [0-31] = 0xff: Keep default CP0_shared_pins:
+ [11] CLKOUT_MPP_11 (out)
+ [23] LINK_RD_IN_CP2CP (in)
+ [25] CLKOUT_MPP_25 (out)
+ [29] AVS_FB_IN_CP2CP (in)
+ [32,34] SMI
+ [31] GPIO: push button/Wake
+ [35-36] GPIO
+ [37-38] I2C
+ [40-41] SATA[0/1]_PRESENT_ACTIVEn
+ [42-43] XSMI
+ [44-55] RGMII1
+ [56-62] SD
+ */
+ /* 0 1 2 3 4 5 6 7 8 9 */
+ pin-func = < 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff
+ 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff
+ 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff
+ 0xff 0 7 0 7 0 0 2 2 0
+ 0 0 8 8 1 1 1 1 1 1
+ 1 1 1 1 1 1 0xE 0xE 0xE 0xE
+ 0xE 0xE 0xE>;
+ };
+ };
+ };
+
+ cp110-slave {
+ config-space {
+ cps_pinctl: pinctl@44000 {
+ compatible = "marvell,mvebu-pinctrl",
+ "marvell,a80x0-cp1-pinctrl";
+ bank-name ="cp1-110";
+ reg = <0x440000 0x20>;
+ pin-count = <63>;
+ max-func = <0xf>;
+ /* MPP Bus:
+ [0-11] RGMII0
+ [27,31] GE_MDIO/MDC
+ [32-62] = 0xff: Keep default CP1_shared_pins:
+ */
+ /* 0 1 2 3 4 5 6 7 8 9 */
+ pin-func = < 0x3 0x3 0x3 0x3 0x3 0x3 0x3 0x3 0x3 0x3
+ 0x3 0x3 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff
+ 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0x8 0xff 0xff
+ 0xff 0x8 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff
+ 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff
+ 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff
+ 0xff 0xff 0xff>;
+ };
+ };
+ };
+}
source "drivers/pinctrl/nxp/Kconfig"
source "drivers/pinctrl/uniphier/Kconfig"
source "drivers/pinctrl/exynos/Kconfig"
+source "drivers/pinctrl/mvebu/Kconfig"
endmenu
obj-$(CONFIG_PIC32_PINCTRL) += pinctrl_pic32.o
obj-$(CONFIG_PINCTRL_EXYNOS) += exynos/
obj-$(CONFIG_PINCTRL_MESON) += meson/
+obj-$(CONFIG_PINCTRL_MVEBU) += mvebu/
--- /dev/null
+config PINCTRL_MVEBU
+ depends on ARCH_MVEBU
+ bool
+ default y
+ help
+ Support pin multiplexing and pin configuration control on
+ Marvell's Armada-8K SoC.
--- /dev/null
+#
+# Copyright (C) 2016 Marvell International Ltd.
+#
+# SPDX-License-Identifier: GPL-2.0
+# https://spdx.org/licenses
+
+obj-$(CONFIG_PINCTRL_MVEBU) += pinctrl-mvebu.o
--- /dev/null
+/*
+ * Copyright (C) 2016 Marvell International Ltd.
+ *
+ * SPDX-License-Identifier: GPL-2.0
+ * https://spdx.org/licenses
+ */
+
+#include <common.h>
+#include <config.h>
+#include <fdtdec.h>
+#include <errno.h>
+#include <dm.h>
+#include <dm/pinctrl.h>
+#include <dm/root.h>
+#include <asm/system.h>
+#include <asm/io.h>
+#include <asm/arch-armada8k/soc-info.h>
+#include "pinctrl-mvebu.h"
+
+DECLARE_GLOBAL_DATA_PTR;
+
+/*
+ * mvebu_pinctrl_set_state: configure pin functions.
+ * @dev: the pinctrl device to be configured.
+ * @config: the state to be configured.
+ * @return: 0 in success
+ */
+int mvebu_pinctrl_set_state(struct udevice *dev, struct udevice *config)
+{
+ const void *blob = gd->fdt_blob;
+ int node = config->of_offset;
+ struct mvebu_pinctrl_priv *priv;
+ u32 pin_arr[MVEBU_MAX_PINS_PER_BANK];
+ u32 function;
+ int i, pin_count;
+
+ priv = dev_get_priv(dev);
+
+ pin_count = fdtdec_get_int_array_count(blob, node,
+ "marvell,pins",
+ pin_arr,
+ MVEBU_MAX_PINS_PER_BANK);
+ if (pin_count <= 0) {
+ debug("Failed reading pins array for pinconfig %s (%d)\n",
+ config->name, pin_count);
+ return -EINVAL;
+ }
+
+ function = fdtdec_get_int(blob, node, "marvell,function", 0xff);
+
+ for (i = 0; i < pin_count; i++) {
+ int reg_offset;
+ int field_offset;
+ int pin = pin_arr[i];
+
+ if (function > priv->max_func) {
+ debug("Illegal function %d for pinconfig %s\n",
+ function, config->name);
+ return -EINVAL;
+ }
+
+ /* Calculate register address and bit in register */
+ reg_offset = priv->reg_direction * 4 *
+ (pin >> (PIN_REG_SHIFT));
+ field_offset = (BITS_PER_PIN) * (pin & PIN_FIELD_MASK);
+
+ clrsetbits_le32(priv->base_reg + reg_offset,
+ PIN_FUNC_MASK << field_offset,
+ (function & PIN_FUNC_MASK) << field_offset);
+ }
+
+ return 0;
+}
+
+/*
+ * mvebu_pinctrl_set_state_all: configure the entire bank pin functions.
+ * @dev: the pinctrl device to be configured.
+ * @config: the state to be configured.
+ * @return: 0 in success
+ */
+static int mvebu_pinctrl_set_state_all(struct udevice *dev,
+ struct udevice *config)
+{
+ const void *blob = gd->fdt_blob;
+ int node = config->of_offset;
+ struct mvebu_pinctrl_priv *priv;
+ u32 func_arr[MVEBU_MAX_PINS_PER_BANK];
+ int pin, err;
+
+ priv = dev_get_priv(dev);
+
+ err = fdtdec_get_int_array(blob, node, "pin-func",
+ func_arr, priv->pin_cnt);
+ if (err) {
+ debug("Failed reading pin functions for bank %s\n",
+ priv->bank_name);
+ return -EINVAL;
+ }
+
+ for (pin = 0; pin < priv->pin_cnt; pin++) {
+ int reg_offset;
+ int field_offset;
+ u32 func = func_arr[pin];
+
+ /* Bypass pins with function 0xFF */
+ if (func == 0xff) {
+ debug("Warning: pin %d value is not modified ", pin);
+ debug("(kept as default)\n");
+ continue;
+ } else if (func > priv->max_func) {
+ debug("Illegal function %d for pin %d\n", func, pin);
+ return -EINVAL;
+ }
+
+ /* Calculate register address and bit in register */
+ reg_offset = priv->reg_direction * 4 *
+ (pin >> (PIN_REG_SHIFT));
+ field_offset = (BITS_PER_PIN) * (pin & PIN_FIELD_MASK);
+
+ clrsetbits_le32(priv->base_reg + reg_offset,
+ PIN_FUNC_MASK << field_offset,
+ (func & PIN_FUNC_MASK) << field_offset);
+ }
+
+ return 0;
+}
+
+int mvebu_pinctl_probe(struct udevice *dev)
+{
+ const void *blob = gd->fdt_blob;
+ int node = dev->of_offset;
+ struct mvebu_pinctrl_priv *priv;
+
+ priv = dev_get_priv(dev);
+ if (!priv) {
+ debug("%s: Failed to get private\n", __func__);
+ return -EINVAL;
+ }
+
+ priv->base_reg = dev_get_addr_ptr(dev);
+ if (priv->base_reg == (void *)FDT_ADDR_T_NONE) {
+ debug("%s: Failed to get base address\n", __func__);
+ return -EINVAL;
+ }
+
+ priv->pin_cnt = fdtdec_get_int(blob, node, "pin-count",
+ MVEBU_MAX_PINS_PER_BANK);
+ priv->max_func = fdtdec_get_int(blob, node, "max-func",
+ MVEBU_MAX_FUNC);
+ priv->bank_name = fdt_getprop(blob, node, "bank-name", NULL);
+
+ priv->reg_direction = 1;
+ if (fdtdec_get_bool(blob, node, "reverse-reg"))
+ priv->reg_direction = -1;
+
+ return mvebu_pinctrl_set_state_all(dev, dev);
+}
+
+static struct pinctrl_ops mvebu_pinctrl_ops = {
+ .set_state = mvebu_pinctrl_set_state
+};
+
+static const struct udevice_id mvebu_pinctrl_ids[] = {
+ { .compatible = "marvell,mvebu-pinctrl" },
+ { .compatible = "marvell,armada-ap806-pinctrl" },
+ { .compatible = "marvell,a70x0-pinctrl" },
+ { .compatible = "marvell,a80x0-cp0-pinctrl" },
+ { .compatible = "marvell,a80x0-cp1-pinctrl" },
+ { }
+};
+
+U_BOOT_DRIVER(pinctrl_mvebu) = {
+ .name = "mvebu_pinctrl",
+ .id = UCLASS_PINCTRL,
+ .of_match = mvebu_pinctrl_ids,
+ .priv_auto_alloc_size = sizeof(struct mvebu_pinctrl_priv),
+ .ops = &mvebu_pinctrl_ops,
+ .probe = mvebu_pinctl_probe
+};
--- /dev/null
+/*
+ * Copyright (C) 2016 Marvell International Ltd.
+ *
+ * SPDX-License-Identifier: GPL-2.0
+ * https://spdx.org/licenses
+ */
+
+ #ifndef __PINCTRL_MVEBU_H_
+ #define __PINCTRL_MVEBU_H_
+
+ #define MVEBU_MAX_PINCTL_BANKS 4
+ #define MVEBU_MAX_PINS_PER_BANK 100
+ #define MVEBU_MAX_FUNC 0xF
+
+/*
+ * struct mvebu_pin_bank_data: mvebu-pinctrl bank data
+ * @base_reg: controller base address for this bank
+ * @pin_cnt: number of pins included in this bank
+ * @max_func: maximum configurable function value for pins in this bank
+ * @reg_direction:
+ * @bank_name: the pin's bank name
+ */
+struct mvebu_pinctrl_priv {
+ void *base_reg;
+ uint pin_cnt;
+ uint max_func;
+ int reg_direction;
+ const char *bank_name;
+};
+
+#endif /* __PINCTRL_MVEBU_H_ */
git.openpandora.org / pandora-u-boot.git / commitdiff