diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/pinctrl/Kconfig | 15 | ||||
| -rw-r--r-- | drivers/pinctrl/Makefile | 3 | ||||
| -rw-r--r-- | drivers/pinctrl/pinctrl-imx23.c | 305 | ||||
| -rw-r--r-- | drivers/pinctrl/pinctrl-imx28.c | 421 | ||||
| -rw-r--r-- | drivers/pinctrl/pinctrl-mxs.c | 508 | ||||
| -rw-r--r-- | drivers/pinctrl/pinctrl-mxs.h | 91 |
6 files changed, 1343 insertions, 0 deletions
diff --git a/drivers/pinctrl/Kconfig b/drivers/pinctrl/Kconfig index 40d78aa5bca2..73f2fd66d658 100644 --- a/drivers/pinctrl/Kconfig +++ b/drivers/pinctrl/Kconfig @@ -49,6 +49,21 @@ config PINCTRL_MMP2 select PINCTRL_PXA3xx select PINCONF +config PINCTRL_MXS + bool + +config PINCTRL_IMX23 + bool + select PINMUX + select PINCONF + select PINCTRL_MXS + +config PINCTRL_IMX28 + bool + select PINMUX + select PINCONF + select PINCTRL_MXS + config PINCTRL_PXA168 bool "PXA168 pin controller driver" depends on ARCH_MMP diff --git a/drivers/pinctrl/Makefile b/drivers/pinctrl/Makefile index 133261d821a3..5f5a0a6414a5 100644 --- a/drivers/pinctrl/Makefile +++ b/drivers/pinctrl/Makefile @@ -13,6 +13,9 @@ obj-$(CONFIG_PINCTRL_IMX) += pinctrl-imx.o obj-$(CONFIG_PINCTRL_IMX6Q) += pinctrl-imx6q.o obj-$(CONFIG_PINCTRL_PXA3xx) += pinctrl-pxa3xx.o obj-$(CONFIG_PINCTRL_MMP2) += pinctrl-mmp2.o +obj-$(CONFIG_PINCTRL_MXS) += pinctrl-mxs.o +obj-$(CONFIG_PINCTRL_IMX23) += pinctrl-imx23.o +obj-$(CONFIG_PINCTRL_IMX28) += pinctrl-imx28.o obj-$(CONFIG_PINCTRL_PXA168) += pinctrl-pxa168.o obj-$(CONFIG_PINCTRL_PXA910) += pinctrl-pxa910.o obj-$(CONFIG_PINCTRL_SIRF) += pinctrl-sirf.o diff --git a/drivers/pinctrl/pinctrl-imx23.c b/drivers/pinctrl/pinctrl-imx23.c new file mode 100644 index 000000000000..75d3eff94296 --- /dev/null +++ b/drivers/pinctrl/pinctrl-imx23.c @@ -0,0 +1,305 @@ +/* + * Copyright 2012 Freescale Semiconductor, Inc. + * + * The code contained herein is licensed under the GNU General Public + * License. You may obtain a copy of the GNU General Public License + * Version 2 or later at the following locations: + * + * http://www.opensource.org/licenses/gpl-license.html + * http://www.gnu.org/copyleft/gpl.html + */ + +#include <linux/init.h> +#include <linux/module.h> +#include <linux/of_device.h> +#include <linux/pinctrl/pinctrl.h> +#include "pinctrl-mxs.h" + +enum imx23_pin_enum { + GPMI_D00 = PINID(0, 0), + GPMI_D01 = PINID(0, 1), + GPMI_D02 = PINID(0, 2), + GPMI_D03 = PINID(0, 3), + GPMI_D04 = PINID(0, 4), + GPMI_D05 = PINID(0, 5), + GPMI_D06 = PINID(0, 6), + GPMI_D07 = PINID(0, 7), + GPMI_D08 = PINID(0, 8), + GPMI_D09 = PINID(0, 9), + GPMI_D10 = PINID(0, 10), + GPMI_D11 = PINID(0, 11), + GPMI_D12 = PINID(0, 12), + GPMI_D13 = PINID(0, 13), + GPMI_D14 = PINID(0, 14), + GPMI_D15 = PINID(0, 15), + GPMI_CLE = PINID(0, 16), + GPMI_ALE = PINID(0, 17), + GPMI_CE2N = PINID(0, 18), + GPMI_RDY0 = PINID(0, 19), + GPMI_RDY1 = PINID(0, 20), + GPMI_RDY2 = PINID(0, 21), + GPMI_RDY3 = PINID(0, 22), + GPMI_WPN = PINID(0, 23), + GPMI_WRN = PINID(0, 24), + GPMI_RDN = PINID(0, 25), + AUART1_CTS = PINID(0, 26), + AUART1_RTS = PINID(0, 27), + AUART1_RX = PINID(0, 28), + AUART1_TX = PINID(0, 29), + I2C_SCL = PINID(0, 30), + I2C_SDA = PINID(0, 31), + LCD_D00 = PINID(1, 0), + LCD_D01 = PINID(1, 1), + LCD_D02 = PINID(1, 2), + LCD_D03 = PINID(1, 3), + LCD_D04 = PINID(1, 4), + LCD_D05 = PINID(1, 5), + LCD_D06 = PINID(1, 6), + LCD_D07 = PINID(1, 7), + LCD_D08 = PINID(1, 8), + LCD_D09 = PINID(1, 9), + LCD_D10 = PINID(1, 10), + LCD_D11 = PINID(1, 11), + LCD_D12 = PINID(1, 12), + LCD_D13 = PINID(1, 13), + LCD_D14 = PINID(1, 14), + LCD_D15 = PINID(1, 15), + LCD_D16 = PINID(1, 16), + LCD_D17 = PINID(1, 17), + LCD_RESET = PINID(1, 18), + LCD_RS = PINID(1, 19), + LCD_WR = PINID(1, 20), + LCD_CS = PINID(1, 21), + LCD_DOTCK = PINID(1, 22), + LCD_ENABLE = PINID(1, 23), + LCD_HSYNC = PINID(1, 24), + LCD_VSYNC = PINID(1, 25), + PWM0 = PINID(1, 26), + PWM1 = PINID(1, 27), + PWM2 = PINID(1, 28), + PWM3 = PINID(1, 29), + PWM4 = PINID(1, 30), + SSP1_CMD = PINID(2, 0), + SSP1_DETECT = PINID(2, 1), + SSP1_DATA0 = PINID(2, 2), + SSP1_DATA1 = PINID(2, 3), + SSP1_DATA2 = PINID(2, 4), + SSP1_DATA3 = PINID(2, 5), + SSP1_SCK = PINID(2, 6), + ROTARYA = PINID(2, 7), + ROTARYB = PINID(2, 8), + EMI_A00 = PINID(2, 9), + EMI_A01 = PINID(2, 10), + EMI_A02 = PINID(2, 11), + EMI_A03 = PINID(2, 12), + EMI_A04 = PINID(2, 13), + EMI_A05 = PINID(2, 14), + EMI_A06 = PINID(2, 15), + EMI_A07 = PINID(2, 16), + EMI_A08 = PINID(2, 17), + EMI_A09 = PINID(2, 18), + EMI_A10 = PINID(2, 19), + EMI_A11 = PINID(2, 20), + EMI_A12 = PINID(2, 21), + EMI_BA0 = PINID(2, 22), + EMI_BA1 = PINID(2, 23), + EMI_CASN = PINID(2, 24), + EMI_CE0N = PINID(2, 25), + EMI_CE1N = PINID(2, 26), + GPMI_CE1N = PINID(2, 27), + GPMI_CE0N = PINID(2, 28), + EMI_CKE = PINID(2, 29), + EMI_RASN = PINID(2, 30), + EMI_WEN = PINID(2, 31), + EMI_D00 = PINID(3, 0), + EMI_D01 = PINID(3, 1), + EMI_D02 = PINID(3, 2), + EMI_D03 = PINID(3, 3), + EMI_D04 = PINID(3, 4), + EMI_D05 = PINID(3, 5), + EMI_D06 = PINID(3, 6), + EMI_D07 = PINID(3, 7), + EMI_D08 = PINID(3, 8), + EMI_D09 = PINID(3, 9), + EMI_D10 = PINID(3, 10), + EMI_D11 = PINID(3, 11), + EMI_D12 = PINID(3, 12), + EMI_D13 = PINID(3, 13), + EMI_D14 = PINID(3, 14), + EMI_D15 = PINID(3, 15), + EMI_DQM0 = PINID(3, 16), + EMI_DQM1 = PINID(3, 17), + EMI_DQS0 = PINID(3, 18), + EMI_DQS1 = PINID(3, 19), + EMI_CLK = PINID(3, 20), + EMI_CLKN = PINID(3, 21), +}; + +static const struct pinctrl_pin_desc imx23_pins[] = { + MXS_PINCTRL_PIN(GPMI_D00), + MXS_PINCTRL_PIN(GPMI_D01), + MXS_PINCTRL_PIN(GPMI_D02), + MXS_PINCTRL_PIN(GPMI_D03), + MXS_PINCTRL_PIN(GPMI_D04), + MXS_PINCTRL_PIN(GPMI_D05), + MXS_PINCTRL_PIN(GPMI_D06), + MXS_PINCTRL_PIN(GPMI_D07), + MXS_PINCTRL_PIN(GPMI_D08), + MXS_PINCTRL_PIN(GPMI_D09), + MXS_PINCTRL_PIN(GPMI_D10), + MXS_PINCTRL_PIN(GPMI_D11), + MXS_PINCTRL_PIN(GPMI_D12), + MXS_PINCTRL_PIN(GPMI_D13), + MXS_PINCTRL_PIN(GPMI_D14), + MXS_PINCTRL_PIN(GPMI_D15), + MXS_PINCTRL_PIN(GPMI_CLE), + MXS_PINCTRL_PIN(GPMI_ALE), + MXS_PINCTRL_PIN(GPMI_CE2N), + MXS_PINCTRL_PIN(GPMI_RDY0), + MXS_PINCTRL_PIN(GPMI_RDY1), + MXS_PINCTRL_PIN(GPMI_RDY2), + MXS_PINCTRL_PIN(GPMI_RDY3), + MXS_PINCTRL_PIN(GPMI_WPN), + MXS_PINCTRL_PIN(GPMI_WRN), + MXS_PINCTRL_PIN(GPMI_RDN), + MXS_PINCTRL_PIN(AUART1_CTS), + MXS_PINCTRL_PIN(AUART1_RTS), + MXS_PINCTRL_PIN(AUART1_RX), + MXS_PINCTRL_PIN(AUART1_TX), + MXS_PINCTRL_PIN(I2C_SCL), + MXS_PINCTRL_PIN(I2C_SDA), + MXS_PINCTRL_PIN(LCD_D00), + MXS_PINCTRL_PIN(LCD_D01), + MXS_PINCTRL_PIN(LCD_D02), + MXS_PINCTRL_PIN(LCD_D03), + MXS_PINCTRL_PIN(LCD_D04), + MXS_PINCTRL_PIN(LCD_D05), + MXS_PINCTRL_PIN(LCD_D06), + MXS_PINCTRL_PIN(LCD_D07), + MXS_PINCTRL_PIN(LCD_D08), + MXS_PINCTRL_PIN(LCD_D09), + MXS_PINCTRL_PIN(LCD_D10), + MXS_PINCTRL_PIN(LCD_D11), + MXS_PINCTRL_PIN(LCD_D12), + MXS_PINCTRL_PIN(LCD_D13), + MXS_PINCTRL_PIN(LCD_D14), + MXS_PINCTRL_PIN(LCD_D15), + MXS_PINCTRL_PIN(LCD_D16), + MXS_PINCTRL_PIN(LCD_D17), + MXS_PINCTRL_PIN(LCD_RESET), + MXS_PINCTRL_PIN(LCD_RS), + MXS_PINCTRL_PIN(LCD_WR), + MXS_PINCTRL_PIN(LCD_CS), + MXS_PINCTRL_PIN(LCD_DOTCK), + MXS_PINCTRL_PIN(LCD_ENABLE), + MXS_PINCTRL_PIN(LCD_HSYNC), + MXS_PINCTRL_PIN(LCD_VSYNC), + MXS_PINCTRL_PIN(PWM0), + MXS_PINCTRL_PIN(PWM1), + MXS_PINCTRL_PIN(PWM2), + MXS_PINCTRL_PIN(PWM3), + MXS_PINCTRL_PIN(PWM4), + MXS_PINCTRL_PIN(SSP1_CMD), + MXS_PINCTRL_PIN(SSP1_DETECT), + MXS_PINCTRL_PIN(SSP1_DATA0), + MXS_PINCTRL_PIN(SSP1_DATA1), + MXS_PINCTRL_PIN(SSP1_DATA2), + MXS_PINCTRL_PIN(SSP1_DATA3), + MXS_PINCTRL_PIN(SSP1_SCK), + MXS_PINCTRL_PIN(ROTARYA), + MXS_PINCTRL_PIN(ROTARYB), + MXS_PINCTRL_PIN(EMI_A00), + MXS_PINCTRL_PIN(EMI_A01), + MXS_PINCTRL_PIN(EMI_A02), + MXS_PINCTRL_PIN(EMI_A03), + MXS_PINCTRL_PIN(EMI_A04), + MXS_PINCTRL_PIN(EMI_A05), + MXS_PINCTRL_PIN(EMI_A06), + MXS_PINCTRL_PIN(EMI_A07), + MXS_PINCTRL_PIN(EMI_A08), + MXS_PINCTRL_PIN(EMI_A09), + MXS_PINCTRL_PIN(EMI_A10), + MXS_PINCTRL_PIN(EMI_A11), + MXS_PINCTRL_PIN(EMI_A12), + MXS_PINCTRL_PIN(EMI_BA0), + MXS_PINCTRL_PIN(EMI_BA1), + MXS_PINCTRL_PIN(EMI_CASN), + MXS_PINCTRL_PIN(EMI_CE0N), + MXS_PINCTRL_PIN(EMI_CE1N), + MXS_PINCTRL_PIN(GPMI_CE1N), + MXS_PINCTRL_PIN(GPMI_CE0N), + MXS_PINCTRL_PIN(EMI_CKE), + MXS_PINCTRL_PIN(EMI_RASN), + MXS_PINCTRL_PIN(EMI_WEN), + MXS_PINCTRL_PIN(EMI_D00), + MXS_PINCTRL_PIN(EMI_D01), + MXS_PINCTRL_PIN(EMI_D02), + MXS_PINCTRL_PIN(EMI_D03), + MXS_PINCTRL_PIN(EMI_D04), + MXS_PINCTRL_PIN(EMI_D05), + MXS_PINCTRL_PIN(EMI_D06), + MXS_PINCTRL_PIN(EMI_D07), + MXS_PINCTRL_PIN(EMI_D08), + MXS_PINCTRL_PIN(EMI_D09), + MXS_PINCTRL_PIN(EMI_D10), + MXS_PINCTRL_PIN(EMI_D11), + MXS_PINCTRL_PIN(EMI_D12), + MXS_PINCTRL_PIN(EMI_D13), + MXS_PINCTRL_PIN(EMI_D14), + MXS_PINCTRL_PIN(EMI_D15), + MXS_PINCTRL_PIN(EMI_DQM0), + MXS_PINCTRL_PIN(EMI_DQM1), + MXS_PINCTRL_PIN(EMI_DQS0), + MXS_PINCTRL_PIN(EMI_DQS1), + MXS_PINCTRL_PIN(EMI_CLK), + MXS_PINCTRL_PIN(EMI_CLKN), +}; + +static struct mxs_regs imx23_regs = { + .muxsel = 0x100, + .drive = 0x200, + .pull = 0x400, +}; + +static struct mxs_pinctrl_soc_data imx23_pinctrl_data = { + .regs = &imx23_regs, + .pins = imx23_pins, + .npins = ARRAY_SIZE(imx23_pins), +}; + +static int __devinit imx23_pinctrl_probe(struct platform_device *pdev) +{ + return mxs_pinctrl_probe(pdev, &imx23_pinctrl_data); +} + +static struct of_device_id imx23_pinctrl_of_match[] __devinitdata = { + { .compatible = "fsl,imx23-pinctrl", }, + { /* sentinel */ } +}; +MODULE_DEVICE_TABLE(of, imx23_pinctrl_of_match); + +static struct platform_driver imx23_pinctrl_driver = { + .driver = { + .name = "imx23-pinctrl", + .owner = THIS_MODULE, + .of_match_table = imx23_pinctrl_of_match, + }, + .probe = imx23_pinctrl_probe, + .remove = __devexit_p(mxs_pinctrl_remove), +}; + +static int __init imx23_pinctrl_init(void) +{ + return platform_driver_register(&imx23_pinctrl_driver); +} +arch_initcall(imx23_pinctrl_init); + +static void __exit imx23_pinctrl_exit(void) +{ + platform_driver_unregister(&imx23_pinctrl_driver); +} +module_exit(imx23_pinctrl_exit); + +MODULE_AUTHOR("Shawn Guo <shawn.guo@linaro.org>"); +MODULE_DESCRIPTION("Freescale i.MX23 pinctrl driver"); +MODULE_LICENSE("GPL v2"); diff --git a/drivers/pinctrl/pinctrl-imx28.c b/drivers/pinctrl/pinctrl-imx28.c new file mode 100644 index 000000000000..b973026811a2 --- /dev/null +++ b/drivers/pinctrl/pinctrl-imx28.c @@ -0,0 +1,421 @@ +/* + * Copyright 2012 Freescale Semiconductor, Inc. + * + * The code contained herein is licensed under the GNU General Public + * License. You may obtain a copy of the GNU General Public License + * Version 2 or later at the following locations: + * + * http://www.opensource.org/licenses/gpl-license.html + * http://www.gnu.org/copyleft/gpl.html + */ + +#include <linux/init.h> +#include <linux/module.h> +#include <linux/of_device.h> +#include <linux/pinctrl/pinctrl.h> +#include "pinctrl-mxs.h" + +enum imx28_pin_enum { + GPMI_D00 = PINID(0, 0), + GPMI_D01 = PINID(0, 1), + GPMI_D02 = PINID(0, 2), + GPMI_D03 = PINID(0, 3), + GPMI_D04 = PINID(0, 4), + GPMI_D05 = PINID(0, 5), + GPMI_D06 = PINID(0, 6), + GPMI_D07 = PINID(0, 7), + GPMI_CE0N = PINID(0, 16), + GPMI_CE1N = PINID(0, 17), + GPMI_CE2N = PINID(0, 18), + GPMI_CE3N = PINID(0, 19), + GPMI_RDY0 = PINID(0, 20), + GPMI_RDY1 = PINID(0, 21), + GPMI_RDY2 = PINID(0, 22), + GPMI_RDY3 = PINID(0, 23), + GPMI_RDN = PINID(0, 24), + GPMI_WRN = PINID(0, 25), + GPMI_ALE = PINID(0, 26), + GPMI_CLE = PINID(0, 27), + GPMI_RESETN = PINID(0, 28), + LCD_D00 = PINID(1, 0), + LCD_D01 = PINID(1, 1), + LCD_D02 = PINID(1, 2), + LCD_D03 = PINID(1, 3), + LCD_D04 = PINID(1, 4), + LCD_D05 = PINID(1, 5), + LCD_D06 = PINID(1, 6), + LCD_D07 = PINID(1, 7), + LCD_D08 = PINID(1, 8), + LCD_D09 = PINID(1, 9), + LCD_D10 = PINID(1, 10), + LCD_D11 = PINID(1, 11), + LCD_D12 = PINID(1, 12), + LCD_D13 = PINID(1, 13), + LCD_D14 = PINID(1, 14), + LCD_D15 = PINID(1, 15), + LCD_D16 = PINID(1, 16), + LCD_D17 = PINID(1, 17), + LCD_D18 = PINID(1, 18), + LCD_D19 = PINID(1, 19), + LCD_D20 = PINID(1, 20), + LCD_D21 = PINID(1, 21), + LCD_D22 = PINID(1, 22), + LCD_D23 = PINID(1, 23), + LCD_RD_E = PINID(1, 24), + LCD_WR_RWN = PINID(1, 25), + LCD_RS = PINID(1, 26), + LCD_CS = PINID(1, 27), + LCD_VSYNC = PINID(1, 28), + LCD_HSYNC = PINID(1, 29), + LCD_DOTCLK = PINID(1, 30), + LCD_ENABLE = PINID(1, 31), + SSP0_DATA0 = PINID(2, 0), + SSP0_DATA1 = PINID(2, 1), + SSP0_DATA2 = PINID(2, 2), + SSP0_DATA3 = PINID(2, 3), + SSP0_DATA4 = PINID(2, 4), + SSP0_DATA5 = PINID(2, 5), + SSP0_DATA6 = PINID(2, 6), + SSP0_DATA7 = PINID(2, 7), + SSP0_CMD = PINID(2, 8), + SSP0_DETECT = PINID(2, 9), + SSP0_SCK = PINID(2, 10), + SSP1_SCK = PINID(2, 12), + SSP1_CMD = PINID(2, 13), + SSP1_DATA0 = PINID(2, 14), + SSP1_DATA3 = PINID(2, 15), + SSP2_SCK = PINID(2, 16), + SSP2_MOSI = PINID(2, 17), + SSP2_MISO = PINID(2, 18), + SSP2_SS0 = PINID(2, 19), + SSP2_SS1 = PINID(2, 20), + SSP2_SS2 = PINID(2, 21), + SSP3_SCK = PINID(2, 24), + SSP3_MOSI = PINID(2, 25), + SSP3_MISO = PINID(2, 26), + SSP3_SS0 = PINID(2, 27), + AUART0_RX = PINID(3, 0), + AUART0_TX = PINID(3, 1), + AUART0_CTS = PINID(3, 2), + AUART0_RTS = PINID(3, 3), + AUART1_RX = PINID(3, 4), + AUART1_TX = PINID(3, 5), + AUART1_CTS = PINID(3, 6), + AUART1_RTS = PINID(3, 7), + AUART2_RX = PINID(3, 8), + AUART2_TX = PINID(3, 9), + AUART2_CTS = PINID(3, 10), + AUART2_RTS = PINID(3, 11), + AUART3_RX = PINID(3, 12), + AUART3_TX = PINID(3, 13), + AUART3_CTS = PINID(3, 14), + AUART3_RTS = PINID(3, 15), + PWM0 = PINID(3, 16), + PWM1 = PINID(3, 17), + PWM2 = PINID(3, 18), + SAIF0_MCLK = PINID(3, 20), + SAIF0_LRCLK = PINID(3, 21), + SAIF0_BITCLK = PINID(3, 22), + SAIF0_SDATA0 = PINID(3, 23), + I2C0_SCL = PINID(3, 24), + I2C0_SDA = PINID(3, 25), + SAIF1_SDATA0 = PINID(3, 26), + SPDIF = PINID(3, 27), + PWM3 = PINID(3, 28), + PWM4 = PINID(3, 29), + LCD_RESET = PINID(3, 30), + ENET0_MDC = PINID(4, 0), + ENET0_MDIO = PINID(4, 1), + ENET0_RX_EN = PINID(4, 2), + ENET0_RXD0 = PINID(4, 3), + ENET0_RXD1 = PINID(4, 4), + ENET0_TX_CLK = PINID(4, 5), + ENET0_TX_EN = PINID(4, 6), + ENET0_TXD0 = PINID(4, 7), + ENET0_TXD1 = PINID(4, 8), + ENET0_RXD2 = PINID(4, 9), + ENET0_RXD3 = PINID(4, 10), + ENET0_TXD2 = PINID(4, 11), + ENET0_TXD3 = PINID(4, 12), + ENET0_RX_CLK = PINID(4, 13), + ENET0_COL = PINID(4, 14), + ENET0_CRS = PINID(4, 15), + ENET_CLK = PINID(4, 16), + JTAG_RTCK = PINID(4, 20), + EMI_D00 = PINID(5, 0), + EMI_D01 = PINID(5, 1), + EMI_D02 = PINID(5, 2), + EMI_D03 = PINID(5, 3), + EMI_D04 = PINID(5, 4), + EMI_D05 = PINID(5, 5), + EMI_D06 = PINID(5, 6), + EMI_D07 = PINID(5, 7), + EMI_D08 = PINID(5, 8), + EMI_D09 = PINID(5, 9), + EMI_D10 = PINID(5, 10), + EMI_D11 = PINID(5, 11), + EMI_D12 = PINID(5, 12), + EMI_D13 = PINID(5, 13), + EMI_D14 = PINID(5, 14), + EMI_D15 = PINID(5, 15), + EMI_ODT0 = PINID(5, 16), + EMI_DQM0 = PINID(5, 17), + EMI_ODT1 = PINID(5, 18), + EMI_DQM1 = PINID(5, 19), + EMI_DDR_OPEN_FB = PINID(5, 20), + EMI_CLK = PINID(5, 21), + EMI_DQS0 = PINID(5, 22), + EMI_DQS1 = PINID(5, 23), + EMI_DDR_OPEN = PINID(5, 26), + EMI_A00 = PINID(6, 0), + EMI_A01 = PINID(6, 1), + EMI_A02 = PINID(6, 2), + EMI_A03 = PINID(6, 3), + EMI_A04 = PINID(6, 4), + EMI_A05 = PINID(6, 5), + EMI_A06 = PINID(6, 6), + EMI_A07 = PINID(6, 7), + EMI_A08 = PINID(6, 8), + EMI_A09 = PINID(6, 9), + EMI_A10 = PINID(6, 10), + EMI_A11 = PINID(6, 11), + EMI_A12 = PINID(6, 12), + EMI_A13 = PINID(6, 13), + EMI_A14 = PINID(6, 14), + EMI_BA0 = PINID(6, 16), + EMI_BA1 = PINID(6, 17), + EMI_BA2 = PINID(6, 18), + EMI_CASN = PINID(6, 19), + EMI_RASN = PINID(6, 20), + EMI_WEN = PINID(6, 21), + EMI_CE0N = PINID(6, 22), + EMI_CE1N = PINID(6, 23), + EMI_CKE = PINID(6, 24), +}; + +static const struct pinctrl_pin_desc imx28_pins[] = { + MXS_PINCTRL_PIN(GPMI_D00), + MXS_PINCTRL_PIN(GPMI_D01), + MXS_PINCTRL_PIN(GPMI_D02), + MXS_PINCTRL_PIN(GPMI_D03), + MXS_PINCTRL_PIN(GPMI_D04), + MXS_PINCTRL_PIN(GPMI_D05), + MXS_PINCTRL_PIN(GPMI_D06), + MXS_PINCTRL_PIN(GPMI_D07), + MXS_PINCTRL_PIN(GPMI_CE0N), + MXS_PINCTRL_PIN(GPMI_CE1N), + MXS_PINCTRL_PIN(GPMI_CE2N), + MXS_PINCTRL_PIN(GPMI_CE3N), + MXS_PINCTRL_PIN(GPMI_RDY0), + MXS_PINCTRL_PIN(GPMI_RDY1), + MXS_PINCTRL_PIN(GPMI_RDY2), + MXS_PINCTRL_PIN(GPMI_RDY3), + MXS_PINCTRL_PIN(GPMI_RDN), + MXS_PINCTRL_PIN(GPMI_WRN), + MXS_PINCTRL_PIN(GPMI_ALE), + MXS_PINCTRL_PIN(GPMI_CLE), + MXS_PINCTRL_PIN(GPMI_RESETN), + MXS_PINCTRL_PIN(LCD_D00), + MXS_PINCTRL_PIN(LCD_D01), + MXS_PINCTRL_PIN(LCD_D02), + MXS_PINCTRL_PIN(LCD_D03), + MXS_PINCTRL_PIN(LCD_D04), + MXS_PINCTRL_PIN(LCD_D05), + MXS_PINCTRL_PIN(LCD_D06), + MXS_PINCTRL_PIN(LCD_D07), + MXS_PINCTRL_PIN(LCD_D08), + MXS_PINCTRL_PIN(LCD_D09), + MXS_PINCTRL_PIN(LCD_D10), + MXS_PINCTRL_PIN(LCD_D11), + MXS_PINCTRL_PIN(LCD_D12), + MXS_PINCTRL_PIN(LCD_D13), + MXS_PINCTRL_PIN(LCD_D14), + MXS_PINCTRL_PIN(LCD_D15), + MXS_PINCTRL_PIN(LCD_D16), + MXS_PINCTRL_PIN(LCD_D17), + MXS_PINCTRL_PIN(LCD_D18), + MXS_PINCTRL_PIN(LCD_D19), + MXS_PINCTRL_PIN(LCD_D20), + MXS_PINCTRL_PIN(LCD_D21), + MXS_PINCTRL_PIN(LCD_D22), + MXS_PINCTRL_PIN(LCD_D23), + MXS_PINCTRL_PIN(LCD_RD_E), + MXS_PINCTRL_PIN(LCD_WR_RWN), + MXS_PINCTRL_PIN(LCD_RS), + MXS_PINCTRL_PIN(LCD_CS), + MXS_PINCTRL_PIN(LCD_VSYNC), + MXS_PINCTRL_PIN(LCD_HSYNC), + MXS_PINCTRL_PIN(LCD_DOTCLK), + MXS_PINCTRL_PIN(LCD_ENABLE), + MXS_PINCTRL_PIN(SSP0_DATA0), + MXS_PINCTRL_PIN(SSP0_DATA1), + MXS_PINCTRL_PIN(SSP0_DATA2), + MXS_PINCTRL_PIN(SSP0_DATA3), + MXS_PINCTRL_PIN(SSP0_DATA4), + MXS_PINCTRL_PIN(SSP0_DATA5), + MXS_PINCTRL_PIN(SSP0_DATA6), + MXS_PINCTRL_PIN(SSP0_DATA7), + MXS_PINCTRL_PIN(SSP0_CMD), + MXS_PINCTRL_PIN(SSP0_DETECT), + MXS_PINCTRL_PIN(SSP0_SCK), + MXS_PINCTRL_PIN(SSP1_SCK), + MXS_PINCTRL_PIN(SSP1_CMD), + MXS_PINCTRL_PIN(SSP1_DATA0), + MXS_PINCTRL_PIN(SSP1_DATA3), + MXS_PINCTRL_PIN(SSP2_SCK), + MXS_PINCTRL_PIN(SSP2_MOSI), + MXS_PINCTRL_PIN(SSP2_MISO), + MXS_PINCTRL_PIN(SSP2_SS0), + MXS_PINCTRL_PIN(SSP2_SS1), + MXS_PINCTRL_PIN(SSP2_SS2), + MXS_PINCTRL_PIN(SSP3_SCK), + MXS_PINCTRL_PIN(SSP3_MOSI), + MXS_PINCTRL_PIN(SSP3_MISO), + MXS_PINCTRL_PIN(SSP3_SS0), + MXS_PINCTRL_PIN(AUART0_RX), + MXS_PINCTRL_PIN(AUART0_TX), + MXS_PINCTRL_PIN(AUART0_CTS), + MXS_PINCTRL_PIN(AUART0_RTS), + MXS_PINCTRL_PIN(AUART1_RX), + MXS_PINCTRL_PIN(AUART1_TX), + MXS_PINCTRL_PIN(AUART1_CTS), + MXS_PINCTRL_PIN(AUART1_RTS), + MXS_PINCTRL_PIN(AUART2_RX), + MXS_PINCTRL_PIN(AUART2_TX), + MXS_PINCTRL_PIN(AUART2_CTS), + MXS_PINCTRL_PIN(AUART2_RTS), + MXS_PINCTRL_PIN(AUART3_RX), + MXS_PINCTRL_PIN(AUART3_TX), + MXS_PINCTRL_PIN(AUART3_CTS), + MXS_PINCTRL_PIN(AUART3_RTS), + MXS_PINCTRL_PIN(PWM0), + MXS_PINCTRL_PIN(PWM1), + MXS_PINCTRL_PIN(PWM2), + MXS_PINCTRL_PIN(SAIF0_MCLK), + MXS_PINCTRL_PIN(SAIF0_LRCLK), + MXS_PINCTRL_PIN(SAIF0_BITCLK), + MXS_PINCTRL_PIN(SAIF0_SDATA0), + MXS_PINCTRL_PIN(I2C0_SCL), + MXS_PINCTRL_PIN(I2C0_SDA), + MXS_PINCTRL_PIN(SAIF1_SDATA0), + MXS_PINCTRL_PIN(SPDIF), + MXS_PINCTRL_PIN(PWM3), + MXS_PINCTRL_PIN(PWM4), + MXS_PINCTRL_PIN(LCD_RESET), + MXS_PINCTRL_PIN(ENET0_MDC), + MXS_PINCTRL_PIN(ENET0_MDIO), + MXS_PINCTRL_PIN(ENET0_RX_EN), + MXS_PINCTRL_PIN(ENET0_RXD0), + MXS_PINCTRL_PIN(ENET0_RXD1), + MXS_PINCTRL_PIN(ENET0_TX_CLK), + MXS_PINCTRL_PIN(ENET0_TX_EN), + MXS_PINCTRL_PIN(ENET0_TXD0), + MXS_PINCTRL_PIN(ENET0_TXD1), + MXS_PINCTRL_PIN(ENET0_RXD2), + MXS_PINCTRL_PIN(ENET0_RXD3), + MXS_PINCTRL_PIN(ENET0_TXD2), + MXS_PINCTRL_PIN(ENET0_TXD3), + MXS_PINCTRL_PIN(ENET0_RX_CLK), + MXS_PINCTRL_PIN(ENET0_COL), + MXS_PINCTRL_PIN(ENET0_CRS), + MXS_PINCTRL_PIN(ENET_CLK), + MXS_PINCTRL_PIN(JTAG_RTCK), + MXS_PINCTRL_PIN(EMI_D00), + MXS_PINCTRL_PIN(EMI_D01), + MXS_PINCTRL_PIN(EMI_D02), + MXS_PINCTRL_PIN(EMI_D03), + MXS_PINCTRL_PIN(EMI_D04), + MXS_PINCTRL_PIN(EMI_D05), + MXS_PINCTRL_PIN(EMI_D06), + MXS_PINCTRL_PIN(EMI_D07), + MXS_PINCTRL_PIN(EMI_D08), + MXS_PINCTRL_PIN(EMI_D09), + MXS_PINCTRL_PIN(EMI_D10), + MXS_PINCTRL_PIN(EMI_D11), + MXS_PINCTRL_PIN(EMI_D12), + MXS_PINCTRL_PIN(EMI_D13), + MXS_PINCTRL_PIN(EMI_D14), + MXS_PINCTRL_PIN(EMI_D15), + MXS_PINCTRL_PIN(EMI_ODT0), + MXS_PINCTRL_PIN(EMI_DQM0), + MXS_PINCTRL_PIN(EMI_ODT1), + MXS_PINCTRL_PIN(EMI_DQM1), + MXS_PINCTRL_PIN(EMI_DDR_OPEN_FB), + MXS_PINCTRL_PIN(EMI_CLK), + MXS_PINCTRL_PIN(EMI_DQS0), + MXS_PINCTRL_PIN(EMI_DQS1), + MXS_PINCTRL_PIN(EMI_DDR_OPEN), + MXS_PINCTRL_PIN(EMI_A00), + MXS_PINCTRL_PIN(EMI_A01), + MXS_PINCTRL_PIN(EMI_A02), + MXS_PINCTRL_PIN(EMI_A03), + MXS_PINCTRL_PIN(EMI_A04), + MXS_PINCTRL_PIN(EMI_A05), + MXS_PINCTRL_PIN(EMI_A06), + MXS_PINCTRL_PIN(EMI_A07), + MXS_PINCTRL_PIN(EMI_A08), + MXS_PINCTRL_PIN(EMI_A09), + MXS_PINCTRL_PIN(EMI_A10), + MXS_PINCTRL_PIN(EMI_A11), + MXS_PINCTRL_PIN(EMI_A12), + MXS_PINCTRL_PIN(EMI_A13), + MXS_PINCTRL_PIN(EMI_A14), + MXS_PINCTRL_PIN(EMI_BA0), + MXS_PINCTRL_PIN(EMI_BA1), + MXS_PINCTRL_PIN(EMI_BA2), + MXS_PINCTRL_PIN(EMI_CASN), + MXS_PINCTRL_PIN(EMI_RASN), + MXS_PINCTRL_PIN(EMI_WEN), + MXS_PINCTRL_PIN(EMI_CE0N), + MXS_PINCTRL_PIN(EMI_CE1N), + MXS_PINCTRL_PIN(EMI_CKE), +}; + +static struct mxs_regs imx28_regs = { + .muxsel = 0x100, + .drive = 0x300, + .pull = 0x600, +}; + +static struct mxs_pinctrl_soc_data imx28_pinctrl_data = { + .regs = &imx28_regs, + .pins = imx28_pins, + .npins = ARRAY_SIZE(imx28_pins), +}; + +static int __devinit imx28_pinctrl_probe(struct platform_device *pdev) +{ + return mxs_pinctrl_probe(pdev, &imx28_pinctrl_data); +} + +static struct of_device_id imx28_pinctrl_of_match[] __devinitdata = { + { .compatible = "fsl,imx28-pinctrl", }, + { /* sentinel */ } +}; +MODULE_DEVICE_TABLE(of, imx28_pinctrl_of_match); + +static struct platform_driver imx28_pinctrl_driver = { + .driver = { + .name = "imx28-pinctrl", + .owner = THIS_MODULE, + .of_match_table = imx28_pinctrl_of_match, + }, + .probe = imx28_pinctrl_probe, + .remove = __devexit_p(mxs_pinctrl_remove), +}; + +static int __init imx28_pinctrl_init(void) +{ + return platform_driver_register(&imx28_pinctrl_driver); +} +arch_initcall(imx28_pinctrl_init); + +static void __exit imx28_pinctrl_exit(void) +{ + platform_driver_unregister(&imx28_pinctrl_driver); +} +module_exit(imx28_pinctrl_exit); + +MODULE_AUTHOR("Shawn Guo <shawn.guo@linaro.org>"); +MODULE_DESCRIPTION("Freescale i.MX28 pinctrl driver"); +MODULE_LICENSE("GPL v2"); diff --git a/drivers/pinctrl/pinctrl-mxs.c b/drivers/pinctrl/pinctrl-mxs.c new file mode 100644 index 000000000000..93cd959971c5 --- /dev/null +++ b/drivers/pinctrl/pinctrl-mxs.c @@ -0,0 +1,508 @@ +/* + * Copyright 2012 Freescale Semiconductor, Inc. + * + * The code contained herein is licensed under the GNU General Public + * License. You may obtain a copy of the GNU General Public License + * Version 2 or later at the following locations: + * + * http://www.opensource.org/licenses/gpl-license.html + * http://www.gnu.org/copyleft/gpl.html + */ + +#include <linux/err.h> +#include <linux/init.h> +#include <linux/io.h> +#include <linux/module.h> +#include <linux/of.h> +#include <linux/of_address.h> +#include <linux/pinctrl/machine.h> +#include <linux/pinctrl/pinconf.h> +#include <linux/pinctrl/pinctrl.h> +#include <linux/pinctrl/pinmux.h> +#include <linux/platform_device.h> +#include <linux/slab.h> +#include "core.h" +#include "pinctrl-mxs.h" + +#define SUFFIX_LEN 4 + +struct mxs_pinctrl_data { + struct device *dev; + struct pinctrl_dev *pctl; + void __iomem *base; + struct mxs_pinctrl_soc_data *soc; +}; + +static int mxs_get_groups_count(struct pinctrl_dev *pctldev) +{ + struct mxs_pinctrl_data *d = pinctrl_dev_get_drvdata(pctldev); + + return d->soc->ngroups; +} + +static const char *mxs_get_group_name(struct pinctrl_dev *pctldev, + unsigned group) +{ + struct mxs_pinctrl_data *d = pinctrl_dev_get_drvdata(pctldev); + + return d->soc->groups[group].name; +} + +static int mxs_get_group_pins(struct pinctrl_dev *pctldev, unsigned group, + const unsigned **pins, unsigned *num_pins) +{ + struct mxs_pinctrl_data *d = pinctrl_dev_get_drvdata(pctldev); + + *pins = d->soc->groups[group].pins; + *num_pins = d->soc->groups[group].npins; + + return 0; +} + +static void mxs_pin_dbg_show(struct pinctrl_dev *pctldev, struct seq_file *s, + unsigned offset) +{ + seq_printf(s, " %s", dev_name(pctldev->dev)); +} + +static int mxs_dt_node_to_map(struct pinctrl_dev *pctldev, + struct device_node *np, + struct pinctrl_map **map, unsigned *num_maps) +{ + struct pinctrl_map *new_map; + char *group; + unsigned new_num; + unsigned long config = 0; + unsigned long *pconfig; + int length = strlen(np->name) + SUFFIX_LEN; + u32 val; + int ret; + + ret = of_property_read_u32(np, "fsl,drive-strength", &val); + if (!ret) + config = val | MA_PRESENT; + ret = of_property_read_u32(np, "fsl,voltage", &val); + if (!ret) + config |= val << VOL_SHIFT | VOL_PRESENT; + ret = of_property_read_u32(np, "fsl,pull-up", &val); + if (!ret) + config |= val << PULL_SHIFT | PULL_PRESENT; + + new_num = config ? 2 : 1; + new_map = kzalloc(sizeof(*new_map) * new_num, GFP_KERNEL); + if (!new_map) + return -ENOMEM; + + new_map[0].type = PIN_MAP_TYPE_MUX_GROUP; + new_map[0].data.mux.function = np->name; + + /* Compose group name */ + group = kzalloc(length, GFP_KERNEL); + if (!group) + return -ENOMEM; + of_property_read_u32(np, "reg", &val); + snprintf(group, length, "%s.%d", np->name, val); + new_map[0].data.mux.group = group; + + if (config) { + pconfig = kmemdup(&config, sizeof(config), GFP_KERNEL); + if (!pconfig) { + ret = -ENOMEM; + goto free; + } + + new_map[1].type = PIN_MAP_TYPE_CONFIGS_GROUP; + new_map[1].data.configs.group_or_pin = group; + new_map[1].data.configs.configs = pconfig; + new_map[1].data.configs.num_configs = 1; + } + + *map = new_map; + *num_maps = new_num; + + return 0; + +free: + kfree(new_map); + return ret; +} + +static void mxs_dt_free_map(struct pinctrl_dev *pctldev, + struct pinctrl_map *map, unsigned num_maps) +{ + int i; + + for (i = 0; i < num_maps; i++) { + if (map[i].type == PIN_MAP_TYPE_MUX_GROUP) + kfree(map[i].data.mux.group); + if (map[i].type == PIN_MAP_TYPE_CONFIGS_GROUP) + kfree(map[i].data.configs.configs); + } + + kfree(map); +} + +static struct pinctrl_ops mxs_pinctrl_ops = { + .get_groups_count = mxs_get_groups_count, + .get_group_name = mxs_get_group_name, + .get_group_pins = mxs_get_group_pins, + .pin_dbg_show = mxs_pin_dbg_show, + .dt_node_to_map = mxs_dt_node_to_map, + .dt_free_map = mxs_dt_free_map, +}; + +static int mxs_pinctrl_get_funcs_count(struct pinctrl_dev *pctldev) +{ + struct mxs_pinctrl_data *d = pinctrl_dev_get_drvdata(pctldev); + + return d->soc->nfunctions; +} + +static const char *mxs_pinctrl_get_func_name(struct pinctrl_dev *pctldev, + unsigned function) +{ + struct mxs_pinctrl_data *d = pinctrl_dev_get_drvdata(pctldev); + + return d->soc->functions[function].name; +} + +static int mxs_pinctrl_get_func_groups(struct pinctrl_dev *pctldev, + unsigned group, + const char * const **groups, + unsigned * const num_groups) +{ + struct mxs_pinctrl_data *d = pinctrl_dev_get_drvdata(pctldev); + + *groups = d->soc->functions[group].groups; + *num_groups = d->soc->functions[group].ngroups; + + return 0; +} + +static int mxs_pinctrl_enable(struct pinctrl_dev *pctldev, unsigned selector, + unsigned group) +{ + struct mxs_pinctrl_data *d = pinctrl_dev_get_drvdata(pctldev); + struct mxs_group *g = &d->soc->groups[group]; + void __iomem *reg; + u8 bank, shift; + u16 pin; + int i; + + for (i = 0; i < g->npins; i++) { + bank = PINID_TO_BANK(g->pins[i]); + pin = PINID_TO_PIN(g->pins[i]); + reg = d->base + d->soc->regs->muxsel; + reg += bank * 0x20 + pin / 16 * 0x10; + shift = pin % 16 * 2; + + writel(0x3 << shift, reg + CLR); + writel(g->muxsel[i] << shift, reg + SET); + } + + return 0; +} + +static void mxs_pinctrl_disable(struct pinctrl_dev *pctldev, + unsigned function, unsigned group) +{ + /* Nothing to do here */ +} + +static struct pinmux_ops mxs_pinmux_ops = { + .get_functions_count = mxs_pinctrl_get_funcs_count, + .get_function_name = mxs_pinctrl_get_func_name, + .get_function_groups = mxs_pinctrl_get_func_groups, + .enable = mxs_pinctrl_enable, + .disable = mxs_pinctrl_disable, +}; + +static int mxs_pinconf_get(struct pinctrl_dev *pctldev, + unsigned pin, unsigned long *config) +{ + return -ENOTSUPP; +} + +static int mxs_pinconf_set(struct pinctrl_dev *pctldev, + unsigned pin, unsigned long config) +{ + return -ENOTSUPP; +} + +static int mxs_pinconf_group_get(struct pinctrl_dev *pctldev, + unsigned group, unsigned long *config) +{ + struct mxs_pinctrl_data *d = pinctrl_dev_get_drvdata(pctldev); + + *config = d->soc->groups[group].config; + + return 0; +} + +static int mxs_pinconf_group_set(struct pinctrl_dev *pctldev, + unsigned group, unsigned long config) +{ + struct mxs_pinctrl_data *d = pinctrl_dev_get_drvdata(pctldev); + struct mxs_group *g = &d->soc->groups[group]; + void __iomem *reg; + u8 ma, vol, pull, bank, shift; + u16 pin; + int i; + + ma = CONFIG_TO_MA(config); + vol = CONFIG_TO_VOL(config); + pull = CONFIG_TO_PULL(config); + + for (i = 0; i < g->npins; i++) { + bank = PINID_TO_BANK(g->pins[i]); + pin = PINID_TO_PIN(g->pins[i]); + + /* drive */ + reg = d->base + d->soc->regs->drive; + reg += bank * 0x40 + pin / 8 * 0x10; + + /* mA */ + if (config & MA_PRESENT) { + shift = pin % 8 * 4; + writel(0x3 << shift, reg + CLR); + writel(ma << shift, reg + SET); + } + + /* vol */ + if (config & VOL_PRESENT) { + shift = pin % 8 * 4 + 2; + if (vol) + writel(1 << shift, reg + SET); + else + writel(1 << shift, reg + CLR); + } + + /* pull */ + if (config & PULL_PRESENT) { + reg = d->base + d->soc->regs->pull; + reg += bank * 0x10; + shift = pin; + if (pull) + writel(1 << shift, reg + SET); + else + writel(1 << shift, reg + CLR); + } + } + + /* cache the config value for mxs_pinconf_group_get() */ + g->config = config; + + return 0; +} + +static void mxs_pinconf_dbg_show(struct pinctrl_dev *pctldev, + struct seq_file *s, unsigned pin) +{ + /* Not support */ +} + +static void mxs_pinconf_group_dbg_show(struct pinctrl_dev *pctldev, + struct seq_file *s, unsigned group) +{ + unsigned long config; + + if (!mxs_pinconf_group_get(pctldev, group, &config)) + seq_printf(s, "0x%lx", config); +} + +struct pinconf_ops mxs_pinconf_ops = { + .pin_config_get = mxs_pinconf_get, + .pin_config_set = mxs_pinconf_set, + .pin_config_group_get = mxs_pinconf_group_get, + .pin_config_group_set = mxs_pinconf_group_set, + .pin_config_dbg_show = mxs_pinconf_dbg_show, + .pin_config_group_dbg_show = mxs_pinconf_group_dbg_show, +}; + +static struct pinctrl_desc mxs_pinctrl_desc = { + .pctlops = &mxs_pinctrl_ops, + .pmxops = &mxs_pinmux_ops, + .confops = &mxs_pinconf_ops, + .owner = THIS_MODULE, +}; + +static int __devinit mxs_pinctrl_parse_group(struct platform_device *pdev, + struct device_node *np, int idx, + const char **out_name) +{ + struct mxs_pinctrl_data *d = platform_get_drvdata(pdev); + struct mxs_group *g = &d->soc->groups[idx]; + struct property *prop; + const char *propname = "fsl,pinmux-ids"; + char *group; + int length = strlen(np->name) + SUFFIX_LEN; + int i; + u32 val; + + group = devm_kzalloc(&pdev->dev, length, GFP_KERNEL); + if (!group) + return -ENOMEM; + of_property_read_u32(np, "reg", &val); + snprintf(group, length, "%s.%d", np->name, val); + g->name = group; + + prop = of_find_property(np, propname, &length); + if (!prop) + return -EINVAL; + g->npins = length / sizeof(u32); + + g->pins = devm_kzalloc(&pdev->dev, g->npins * sizeof(*g->pins), + GFP_KERNEL); + if (!g->pins) + return -ENOMEM; + + g->muxsel = devm_kzalloc(&pdev->dev, g->npins * sizeof(*g->muxsel), + GFP_KERNEL); + if (!g->muxsel) + return -ENOMEM; + + of_property_read_u32_array(np, propname, g->pins, g->npins); + for (i = 0; i < g->npins; i++) { + g->muxsel[i] = MUXID_TO_MUXSEL(g->pins[i]); + g->pins[i] = MUXID_TO_PINID(g->pins[i]); + } + + *out_name = g->name; + + return 0; +} + +static int __devinit mxs_pinctrl_probe_dt(struct platform_device *pdev, + struct mxs_pinctrl_data *d) +{ + struct mxs_pinctrl_soc_data *soc = d->soc; + struct device_node *np = pdev->dev.of_node; + struct device_node *child; + struct mxs_function *f; + const char *fn, *fnull = ""; + int i = 0, idxf = 0, idxg = 0; + int ret; + u32 val; + + child = of_get_next_child(np, NULL); + if (!child) { + dev_err(&pdev->dev, "no group is defined\n"); + return -ENOENT; + } + + /* Count total functions and groups */ + fn = fnull; + for_each_child_of_node(np, child) { + /* Skip pure pinconf node */ + if (of_property_read_u32(child, "reg", &val)) + continue; + if (strcmp(fn, child->name)) { + fn = child->name; + soc->nfunctions++; + } + soc->ngroups++; + } + + soc->functions = devm_kzalloc(&pdev->dev, soc->nfunctions * + sizeof(*soc->functions), GFP_KERNEL); + if (!soc->functions) + return -ENOMEM; + + soc->groups = devm_kzalloc(&pdev->dev, soc->ngroups * + sizeof(*soc->groups), GFP_KERNEL); + if (!soc->groups) + return -ENOMEM; + + /* Count groups for each function */ + fn = fnull; + f = &soc->functions[idxf]; + for_each_child_of_node(np, child) { + if (of_property_read_u32(child, "reg", &val)) + continue; + if (strcmp(fn, child->name)) { + f = &soc->functions[idxf++]; + f->name = fn = child->name; + } + f->ngroups++; + }; + + /* Get groups for each function */ + idxf = 0; + fn = fnull; + for_each_child_of_node(np, child) { + if (of_property_read_u32(child, "reg", &val)) + continue; + if (strcmp(fn, child->name)) { + f = &soc->functions[idxf++]; + f->groups = devm_kzalloc(&pdev->dev, f->ngroups * + sizeof(*f->groups), + GFP_KERNEL); + if (!f->groups) + return -ENOMEM; + fn = child->name; + i = 0; + } + ret = mxs_pinctrl_parse_group(pdev, child, idxg++, + &f->groups[i++]); + if (ret) + return ret; + } + + return 0; +} + +int __devinit mxs_pinctrl_probe(struct platform_device *pdev, + struct mxs_pinctrl_soc_data *soc) +{ + struct device_node *np = pdev->dev.of_node; + struct mxs_pinctrl_data *d; + int ret; + + d = devm_kzalloc(&pdev->dev, sizeof(*d), GFP_KERNEL); + if (!d) + return -ENOMEM; + + d->dev = &pdev->dev; + d->soc = soc; + + d->base = of_iomap(np, 0); + if (!d->base) + return -EADDRNOTAVAIL; + + mxs_pinctrl_desc.pins = d->soc->pins; + mxs_pinctrl_desc.npins = d->soc->npins; + mxs_pinctrl_desc.name = dev_name(&pdev->dev); + + platform_set_drvdata(pdev, d); + + ret = mxs_pinctrl_probe_dt(pdev, d); + if (ret) { + dev_err(&pdev->dev, "dt probe failed: %d\n", ret); + goto err; + } + + d->pctl = pinctrl_register(&mxs_pinctrl_desc, &pdev->dev, d); + if (!d->pctl) { + dev_err(&pdev->dev, "Couldn't register MXS pinctrl driver\n"); + ret = -EINVAL; + goto err; + } + + return 0; + +err: + iounmap(d->base); + return ret; +} +EXPORT_SYMBOL_GPL(mxs_pinctrl_probe); + +int __devexit mxs_pinctrl_remove(struct platform_device *pdev) +{ + struct mxs_pinctrl_data *d = platform_get_drvdata(pdev); + + pinctrl_unregister(d->pctl); + iounmap(d->base); + + return 0; +} +EXPORT_SYMBOL_GPL(mxs_pinctrl_remove); diff --git a/drivers/pinctrl/pinctrl-mxs.h b/drivers/pinctrl/pinctrl-mxs.h new file mode 100644 index 000000000000..fdd88d0bae22 --- /dev/null +++ b/drivers/pinctrl/pinctrl-mxs.h @@ -0,0 +1,91 @@ +/* + * Copyright 2012 Freescale Semiconductor, Inc. + * + * The code contained herein is licensed under the GNU General Public + * License. You may obtain a copy of the GNU General Public License + * Version 2 or later at the following locations: + * + * http://www.opensource.org/licenses/gpl-license.html + * http://www.gnu.org/copyleft/gpl.html + */ + +#ifndef __PINCTRL_MXS_H +#define __PINCTRL_MXS_H + +#include <linux/platform_device.h> +#include <linux/pinctrl/pinctrl.h> + +#define SET 0x4 +#define CLR 0x8 +#define TOG 0xc + +#define MXS_PINCTRL_PIN(pin) PINCTRL_PIN(pin, #pin) +#define PINID(bank, pin) ((bank) * 32 + (pin)) + +/* + * pinmux-id bit field definitions + * + * bank: 15..12 (4) + * pin: 11..4 (8) + * muxsel: 3..0 (4) + */ +#define MUXID_TO_PINID(m) PINID((m) >> 12 & 0xf, (m) >> 4 & 0xff) +#define MUXID_TO_MUXSEL(m) ((m) & 0xf) + +#define PINID_TO_BANK(p) ((p) >> 5) +#define PINID_TO_PIN(p) ((p) % 32) + +/* + * pin config bit field definitions + * + * pull-up: 6..5 (2) + * voltage: 4..3 (2) + * mA: 2..0 (3) + * + * MSB of each field is presence bit for the config. + */ +#define PULL_PRESENT (1 << 6) +#define PULL_SHIFT 5 +#define VOL_PRESENT (1 << 4) +#define VOL_SHIFT 3 +#define MA_PRESENT (1 << 2) +#define MA_SHIFT 0 +#define CONFIG_TO_PULL(c) ((c) >> PULL_SHIFT & 0x1) +#define CONFIG_TO_VOL(c) ((c) >> VOL_SHIFT & 0x1) +#define CONFIG_TO_MA(c) ((c) >> MA_SHIFT & 0x3) + +struct mxs_function { + const char *name; + const char **groups; + unsigned ngroups; +}; + +struct mxs_group { + const char *name; + unsigned int *pins; + unsigned npins; + u8 *muxsel; + u8 config; +}; + +struct mxs_regs { + u16 muxsel; + u16 drive; + u16 pull; +}; + +struct mxs_pinctrl_soc_data { + const struct mxs_regs *regs; + const struct pinctrl_pin_desc *pins; + unsigned npins; + struct mxs_function *functions; + unsigned nfunctions; + struct mxs_group *groups; + unsigned ngroups; +}; + +int mxs_pinctrl_probe(struct platform_device *pdev, + struct mxs_pinctrl_soc_data *soc); +int mxs_pinctrl_remove(struct platform_device *pdev); + +#endif /* __PINCTRL_MXS_H */ |
