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Subject[PATCH v4 02/10] pinctrl: mvebu: dove pinctrl driver
Date
This patch adds a SoC specific pinctrl driver for Marvell Dove SoCs
plus DT binding documentation. This driver will use the mvebu pinctrl
driver core.

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
---
v2:
- restructured pinctrl/Kconfig to hide pinctrl driver as it will be
always selected by arch/arm/mach-mvebu/Kconfig
- cleaned pinctrl-dove and replaced 'magic numbers' by defines
- use devm_clk_get for (now optional) pdma clock and add to required
properties in devicetree binding documentation

v4:
- choose more precise twsi option names
- assume match on DT node

Cc: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Cc: Grant Likely <grant.likely@secretlab.ca>
Cc: Rob Herring <rob.herring@calxeda.com>
Cc: Rob Landley <rob@landley.net>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Lior Amsalem <alior@marvell.com>
Cc: Andrew Lunn <andrew@lunn.ch>
Cc: Jason Cooper <jason@lakedaemon.net>
Cc: Gregory CLEMENT <gregory.clement@free-electrons.com>
Cc: Ben Dooks <ben.dooks@codethink.co.uk>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: Stephen Warren <swarren@wwwdotorg.org>
Cc: devicetree-discuss@lists.ozlabs.org
Cc: linux-doc@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: linux-arm-kernel@lists.infradead.org
---
.../bindings/pinctrl/marvell,dove-pinctrl.txt | 72 +++
drivers/pinctrl/Kconfig | 4 +
drivers/pinctrl/Makefile | 1 +
drivers/pinctrl/pinctrl-dove.c | 620 ++++++++++++++++++++
4 files changed, 697 insertions(+)
create mode 100644 Documentation/devicetree/bindings/pinctrl/marvell,dove-pinctrl.txt
create mode 100644 drivers/pinctrl/pinctrl-dove.c

diff --git a/Documentation/devicetree/bindings/pinctrl/marvell,dove-pinctrl.txt b/Documentation/devicetree/bindings/pinctrl/marvell,dove-pinctrl.txt
new file mode 100644
index 0000000..a648aaa
--- /dev/null
+++ b/Documentation/devicetree/bindings/pinctrl/marvell,dove-pinctrl.txt
@@ -0,0 +1,72 @@
+* Marvell Dove SoC pinctrl driver for mpp
+
+Please refer to marvell,mvebu-pinctrl.txt in this directory for common binding
+part and usage.
+
+Required properties:
+- compatible: "marvell,dove-pinctrl"
+- clocks: (optional) phandle of pdma clock
+
+Available mpp pins/groups and functions:
+Note: brackets (x) are not part of the mpp name for marvell,function and given
+only for more detailed description in this document.
+
+name pins functions
+================================================================================
+mpp0 0 gpio, pmu, uart2(rts), sdio0(cd), lcd0(pwm)
+mpp1 1 gpio, pmu, uart2(cts), sdio0(wp), lcd1(pwm)
+mpp2 2 gpio, pmu, uart2(txd), sdio0(buspwr), sata(prsnt),
+ uart1(rts)
+mpp3 3 gpio, pmu, uart2(rxd), sdio0(ledctrl), sata(act),
+ uart1(cts), lcd-spi(cs1)
+mpp4 4 gpio, pmu, uart3(rts), sdio1(cd), spi1(miso)
+mpp5 5 gpio, pmu, uart3(cts), sdio1(wp), spi1(cs)
+mpp6 6 gpio, pmu, uart3(txd), sdio1(buspwr), spi1(mosi)
+mpp7 7 gpio, pmu, uart3(rxd), sdio1(ledctrl), spi1(sck)
+mpp8 8 gpio, pmu, watchdog(rstout)
+mpp9 9 gpio, pmu, pex1(clkreq)
+mpp10 10 gpio, pmu, ssp(sclk)
+mpp11 11 gpio, pmu, sata(prsnt), sata-1(act), sdio0(ledctrl),
+ sdio1(ledctrl), pex0(clkreq)
+mpp12 12 gpio, pmu, uart2(rts), audio0(extclk), sdio1(cd), sata(act)
+mpp13 13 gpio, pmu, uart2(cts), audio1(extclk), sdio1(wp),
+ ssp(extclk)
+mpp14 14 gpio, pmu, uart2(txd), sdio1(buspwr), ssp(rxd)
+mpp15 15 gpio, pmu, uart2(rxd), sdio1(ledctrl), ssp(sfrm)
+mpp16 16 gpio, uart3(rts), sdio0(cd), ac97(sdi1), lcd-spi(cs1)
+mpp17 17 gpio, uart3(cts), sdio0(wp), ac97(sdi2), twsi(sda),
+ ac97-1(sysclko)
+mpp18 18 gpio, uart3(txd), sdio0(buspwr), ac97(sdi3), lcd0(pwm)
+mpp19 19 gpio, uart3(rxd), sdio0(ledctrl), twsi(sck)
+mpp20 20 gpio, sdio0(cd), sdio1(cd), spi1(miso), lcd-spi(miso),
+ ac97(sysclko)
+mpp21 21 gpio, sdio0(wp), sdio1(wp), spi1(cs), lcd-spi(cs0),
+ uart1(cts), ssp(sfrm)
+mpp22 22 gpio, sdio0(buspwr), sdio1(buspwr), spi1(mosi),
+ lcd-spi(mosi), uart1(cts), ssp(txd)
+mpp23 23 gpio, sdio0(ledctrl), sdio1(ledctrl), spi1(sck),
+ lcd-spi(sck), ssp(sclk)
+mpp_camera 24-39 gpio, camera
+mpp_sdio0 40-45 gpio, sdio0
+mpp_sdio1 46-51 gpio, sdio1
+mpp_audio1 52-57 gpio, i2s1/spdifo, i2s1, spdifo, twsi, ssp/spdifo, ssp,
+ ssp/twsi
+mpp_spi0 58-61 gpio, spi0
+mpp_uart1 62-63 gpio, uart1
+mpp_nand 64-71 gpo, nand
+audio0 - i2s, ac97
+twsi - none, opt1, opt2, opt3
+
+Notes:
+* group "mpp_audio1" allows the following functions and gpio pins:
+ - gpio : gpio on pins 52-57
+ - i2s1/spdifo : audio1 i2s on pins 52-55 and spdifo on 57, no gpios
+ - i2s1 : audio1 i2s on pins 52-55, gpio on pins 56,57
+ - spdifo : spdifo on pin 57, gpio on pins 52-55
+ - twsi : twsi on pins 56,57, gpio on pins 52-55
+ - ssp/spdifo : ssp on pins 52-55, spdifo on pin 57, no gpios
+ - ssp : ssp on pins 52-55, gpio on pins 56,57
+ - ssp/twsi : ssp on pins 52-55, twsi on pins 56,57, no gpios
+* group "audio0" internally muxes i2s0 or ac97 controller to the dedicated
+ audio0 pins.
+* group "twsi" internally muxes twsi controller to the dedicated or option pins.
diff --git a/drivers/pinctrl/Kconfig b/drivers/pinctrl/Kconfig
index 20bfdc3..f15eba4 100644
--- a/drivers/pinctrl/Kconfig
+++ b/drivers/pinctrl/Kconfig
@@ -151,6 +151,10 @@ config PINCTRL_MVEBU
select PINMUX
select PINCONF

+config PINCTRL_DOVE
+ bool
+ select PINCTRL_MVEBU
+
source "drivers/pinctrl/spear/Kconfig"

endmenu
diff --git a/drivers/pinctrl/Makefile b/drivers/pinctrl/Makefile
index 007ed32..d1327df 100644
--- a/drivers/pinctrl/Makefile
+++ b/drivers/pinctrl/Makefile
@@ -30,5 +30,6 @@ obj-$(CONFIG_PINCTRL_TEGRA30) += pinctrl-tegra30.o
obj-$(CONFIG_PINCTRL_U300) += pinctrl-u300.o
obj-$(CONFIG_PINCTRL_COH901) += pinctrl-coh901.o
obj-$(CONFIG_PINCTRL_MVEBU) += pinctrl-mvebu.o
+obj-$(CONFIG_PINCTRL_DOVE) += pinctrl-dove.o

obj-$(CONFIG_PLAT_SPEAR) += spear/
diff --git a/drivers/pinctrl/pinctrl-dove.c b/drivers/pinctrl/pinctrl-dove.c
new file mode 100644
index 0000000..ffe74b2
--- /dev/null
+++ b/drivers/pinctrl/pinctrl-dove.c
@@ -0,0 +1,620 @@
+/*
+ * Marvell Dove pinctrl driver based on mvebu pinctrl core
+ *
+ * Author: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+#include <linux/err.h>
+#include <linux/init.h>
+#include <linux/io.h>
+#include <linux/module.h>
+#include <linux/bitops.h>
+#include <linux/platform_device.h>
+#include <linux/clk.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
+#include <linux/pinctrl/pinctrl.h>
+
+#include "pinctrl-mvebu.h"
+
+#define DOVE_SB_REGS_VIRT_BASE 0xfde00000
+#define DOVE_MPP_VIRT_BASE (DOVE_SB_REGS_VIRT_BASE | 0xd0200)
+#define DOVE_PMU_MPP_GENERAL_CTRL (DOVE_MPP_VIRT_BASE + 0x10)
+#define DOVE_AU0_AC97_SEL BIT(16)
+#define DOVE_GLOBAL_CONFIG_1 (DOVE_SB_REGS_VIRT_BASE | 0xe802C)
+#define DOVE_TWSI_ENABLE_OPTION1 BIT(7)
+#define DOVE_GLOBAL_CONFIG_2 (DOVE_SB_REGS_VIRT_BASE | 0xe8030)
+#define DOVE_TWSI_ENABLE_OPTION2 BIT(20)
+#define DOVE_TWSI_ENABLE_OPTION3 BIT(21)
+#define DOVE_TWSI_OPTION3_GPIO BIT(22)
+#define DOVE_SSP_CTRL_STATUS_1 (DOVE_SB_REGS_VIRT_BASE | 0xe8034)
+#define DOVE_SSP_ON_AU1 BIT(0)
+#define DOVE_MPP_GENERAL_VIRT_BASE (DOVE_SB_REGS_VIRT_BASE | 0xe803c)
+#define DOVE_AU1_SPDIFO_GPIO_EN BIT(1)
+#define DOVE_NAND_GPIO_EN BIT(0)
+#define DOVE_GPIO_LO_VIRT_BASE (DOVE_SB_REGS_VIRT_BASE | 0xd0400)
+#define DOVE_MPP_CTRL4_VIRT_BASE (DOVE_GPIO_LO_VIRT_BASE + 0x40)
+#define DOVE_SPI_GPIO_SEL BIT(5)
+#define DOVE_UART1_GPIO_SEL BIT(4)
+#define DOVE_AU1_GPIO_SEL BIT(3)
+#define DOVE_CAM_GPIO_SEL BIT(2)
+#define DOVE_SD1_GPIO_SEL BIT(1)
+#define DOVE_SD0_GPIO_SEL BIT(0)
+
+#define MPPS_PER_REG 8
+#define MPP_BITS 4
+#define MPP_MASK 0xf
+
+#define CONFIG_PMU BIT(4)
+
+static int dove_pmu_mpp_ctrl_get(struct mvebu_mpp_ctrl *ctrl,
+ unsigned long *config)
+{
+ unsigned off = (ctrl->pid / MPPS_PER_REG) * MPP_BITS;
+ unsigned shift = (ctrl->pid % MPPS_PER_REG) * MPP_BITS;
+ unsigned long pmu = readl(DOVE_PMU_MPP_GENERAL_CTRL);
+ unsigned long mpp = readl(DOVE_MPP_VIRT_BASE + off);
+
+ if (pmu & (1 << ctrl->pid))
+ *config = CONFIG_PMU;
+ else
+ *config = (mpp >> shift) & MPP_MASK;
+ return 0;
+}
+
+static int dove_pmu_mpp_ctrl_set(struct mvebu_mpp_ctrl *ctrl,
+ unsigned long config)
+{
+ unsigned off = (ctrl->pid / MPPS_PER_REG) * MPP_BITS;
+ unsigned shift = (ctrl->pid % MPPS_PER_REG) * MPP_BITS;
+ unsigned long pmu = readl(DOVE_PMU_MPP_GENERAL_CTRL);
+ unsigned long mpp = readl(DOVE_MPP_VIRT_BASE + off);
+
+ if (config == CONFIG_PMU)
+ writel(pmu | (1 << ctrl->pid), DOVE_PMU_MPP_GENERAL_CTRL);
+ else {
+ writel(pmu & ~(1 << ctrl->pid), DOVE_PMU_MPP_GENERAL_CTRL);
+ mpp &= ~(MPP_MASK << shift);
+ mpp |= config << shift;
+ writel(mpp, DOVE_MPP_VIRT_BASE + off);
+ }
+ return 0;
+}
+
+static int dove_mpp4_ctrl_get(struct mvebu_mpp_ctrl *ctrl,
+ unsigned long *config)
+{
+ unsigned long mpp4 = readl(DOVE_MPP_CTRL4_VIRT_BASE);
+ unsigned long mask;
+
+ switch (ctrl->pid) {
+ case 24: /* mpp_camera */
+ mask = DOVE_CAM_GPIO_SEL;
+ break;
+ case 40: /* mpp_sdio0 */
+ mask = DOVE_SD0_GPIO_SEL;
+ break;
+ case 46: /* mpp_sdio1 */
+ mask = DOVE_SD1_GPIO_SEL;
+ break;
+ case 58: /* mpp_spi0 */
+ mask = DOVE_SPI_GPIO_SEL;
+ break;
+ case 62: /* mpp_uart1 */
+ mask = DOVE_UART1_GPIO_SEL;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ *config = ((mpp4 & mask) != 0);
+
+ return 0;
+}
+
+static int dove_mpp4_ctrl_set(struct mvebu_mpp_ctrl *ctrl,
+ unsigned long config)
+{
+ unsigned long mpp4 = readl(DOVE_MPP_CTRL4_VIRT_BASE);
+ unsigned long mask;
+
+ switch (ctrl->pid) {
+ case 24: /* mpp_camera */
+ mask = DOVE_CAM_GPIO_SEL;
+ break;
+ case 40: /* mpp_sdio0 */
+ mask = DOVE_SD0_GPIO_SEL;
+ break;
+ case 46: /* mpp_sdio1 */
+ mask = DOVE_SD1_GPIO_SEL;
+ break;
+ case 58: /* mpp_spi0 */
+ mask = DOVE_SPI_GPIO_SEL;
+ break;
+ case 62: /* mpp_uart1 */
+ mask = DOVE_UART1_GPIO_SEL;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ mpp4 &= ~mask;
+ if (config)
+ mpp4 |= mask;
+
+ writel(mpp4, DOVE_MPP_CTRL4_VIRT_BASE);
+
+ return 0;
+}
+
+static int dove_nand_ctrl_get(struct mvebu_mpp_ctrl *ctrl,
+ unsigned long *config)
+{
+ unsigned long gmpp = readl(DOVE_MPP_GENERAL_VIRT_BASE);
+
+ *config = ((gmpp & DOVE_NAND_GPIO_EN) != 0);
+
+ return 0;
+}
+
+static int dove_nand_ctrl_set(struct mvebu_mpp_ctrl *ctrl,
+ unsigned long config)
+{
+ unsigned long gmpp = readl(DOVE_MPP_GENERAL_VIRT_BASE);
+
+ gmpp &= ~DOVE_NAND_GPIO_EN;
+ if (config)
+ gmpp |= DOVE_NAND_GPIO_EN;
+
+ writel(gmpp, DOVE_MPP_GENERAL_VIRT_BASE);
+
+ return 0;
+}
+
+static int dove_audio0_ctrl_get(struct mvebu_mpp_ctrl *ctrl,
+ unsigned long *config)
+{
+ unsigned long pmu = readl(DOVE_PMU_MPP_GENERAL_CTRL);
+
+ *config = ((pmu & DOVE_AU0_AC97_SEL) != 0);
+
+ return 0;
+}
+
+static int dove_audio0_ctrl_set(struct mvebu_mpp_ctrl *ctrl,
+ unsigned long config)
+{
+ unsigned long pmu = readl(DOVE_PMU_MPP_GENERAL_CTRL);
+
+ pmu &= ~DOVE_AU0_AC97_SEL;
+ if (config)
+ pmu |= DOVE_AU0_AC97_SEL;
+ writel(pmu, DOVE_PMU_MPP_GENERAL_CTRL);
+
+ return 0;
+}
+
+static int dove_audio1_ctrl_get(struct mvebu_mpp_ctrl *ctrl,
+ unsigned long *config)
+{
+ unsigned long mpp4 = readl(DOVE_MPP_CTRL4_VIRT_BASE);
+ unsigned long sspc1 = readl(DOVE_SSP_CTRL_STATUS_1);
+ unsigned long gmpp = readl(DOVE_MPP_GENERAL_VIRT_BASE);
+ unsigned long gcfg2 = readl(DOVE_GLOBAL_CONFIG_2);
+
+ *config = 0;
+ if (mpp4 & DOVE_AU1_GPIO_SEL)
+ *config |= BIT(3);
+ if (sspc1 & DOVE_SSP_ON_AU1)
+ *config |= BIT(2);
+ if (gmpp & DOVE_AU1_SPDIFO_GPIO_EN)
+ *config |= BIT(1);
+ if (gcfg2 & DOVE_TWSI_OPTION3_GPIO)
+ *config |= BIT(0);
+
+ /* SSP/TWSI only if I2S1 not set*/
+ if ((*config & BIT(3)) == 0)
+ *config &= ~(BIT(2) | BIT(0));
+ /* TWSI only if SPDIFO not set*/
+ if ((*config & BIT(1)) == 0)
+ *config &= ~BIT(0);
+ return 0;
+}
+
+static int dove_audio1_ctrl_set(struct mvebu_mpp_ctrl *ctrl,
+ unsigned long config)
+{
+ unsigned long mpp4 = readl(DOVE_MPP_CTRL4_VIRT_BASE);
+ unsigned long sspc1 = readl(DOVE_SSP_CTRL_STATUS_1);
+ unsigned long gmpp = readl(DOVE_MPP_GENERAL_VIRT_BASE);
+ unsigned long gcfg2 = readl(DOVE_GLOBAL_CONFIG_2);
+
+ if (config & BIT(0))
+ gcfg2 |= DOVE_TWSI_OPTION3_GPIO;
+ if (config & BIT(1))
+ gmpp |= DOVE_AU1_SPDIFO_GPIO_EN;
+ if (config & BIT(2))
+ sspc1 |= DOVE_SSP_ON_AU1;
+ if (config & BIT(3))
+ mpp4 |= DOVE_AU1_GPIO_SEL;
+
+ writel(mpp4, DOVE_MPP_CTRL4_VIRT_BASE);
+ writel(sspc1, DOVE_SSP_CTRL_STATUS_1);
+ writel(gmpp, DOVE_MPP_GENERAL_VIRT_BASE);
+ writel(gcfg2, DOVE_GLOBAL_CONFIG_2);
+
+ return 0;
+}
+
+/* mpp[52:57] gpio pins depend heavily on current config;
+ * gpio_req does not try to mux in gpio capabilities to not
+ * break other functions. If you require all mpps as gpio
+ * enforce gpio setting by pinctrl mapping.
+ */
+static int dove_audio1_ctrl_gpio_req(struct mvebu_mpp_ctrl *ctrl, u8 pid)
+{
+ unsigned long config;
+
+ dove_audio1_ctrl_get(ctrl, &config);
+
+ switch (config) {
+ case 0x02: /* i2s1 : gpio[56:57] */
+ case 0x0e: /* ssp : gpio[56:57] */
+ if (pid >= 56)
+ return 0;
+ return -ENOTSUPP;
+ case 0x08: /* spdifo : gpio[52:55] */
+ case 0x0b: /* twsi : gpio[52:55] */
+ if (pid <= 55)
+ return 0;
+ return -ENOTSUPP;
+ case 0x0a: /* all gpio */
+ return 0;
+ /* 0x00 : i2s1/spdifo : no gpio */
+ /* 0x0c : ssp/spdifo : no gpio */
+ /* 0x0f : ssp/twsi : no gpio */
+ }
+ return -ENOTSUPP;
+}
+
+/* mpp[52:57] has gpio pins capable of in and out */
+static int dove_audio1_ctrl_gpio_dir(struct mvebu_mpp_ctrl *ctrl, u8 pid,
+ bool input)
+{
+ if (pid < 52 || pid > 57)
+ return -ENOTSUPP;
+ return 0;
+}
+
+static int dove_twsi_ctrl_get(struct mvebu_mpp_ctrl *ctrl,
+ unsigned long *config)
+{
+ unsigned long gcfg1 = readl(DOVE_GLOBAL_CONFIG_1);
+ unsigned long gcfg2 = readl(DOVE_GLOBAL_CONFIG_2);
+
+ *config = 0;
+ if (gcfg1 & DOVE_TWSI_ENABLE_OPTION1)
+ *config = 1;
+ else if (gcfg2 & DOVE_TWSI_ENABLE_OPTION2)
+ *config = 2;
+ else if (gcfg2 & DOVE_TWSI_ENABLE_OPTION3)
+ *config = 3;
+
+ return 0;
+}
+
+static int dove_twsi_ctrl_set(struct mvebu_mpp_ctrl *ctrl,
+ unsigned long config)
+{
+ unsigned long gcfg1 = readl(DOVE_GLOBAL_CONFIG_1);
+ unsigned long gcfg2 = readl(DOVE_GLOBAL_CONFIG_2);
+
+ gcfg1 &= ~DOVE_TWSI_ENABLE_OPTION1;
+ gcfg2 &= ~(DOVE_TWSI_ENABLE_OPTION2 | DOVE_TWSI_ENABLE_OPTION2);
+
+ switch (config) {
+ case 1:
+ gcfg1 |= DOVE_TWSI_ENABLE_OPTION1;
+ break;
+ case 2:
+ gcfg2 |= DOVE_TWSI_ENABLE_OPTION2;
+ break;
+ case 3:
+ gcfg2 |= DOVE_TWSI_ENABLE_OPTION3;
+ break;
+ }
+
+ writel(gcfg1, DOVE_GLOBAL_CONFIG_1);
+ writel(gcfg2, DOVE_GLOBAL_CONFIG_2);
+
+ return 0;
+}
+
+static struct mvebu_mpp_ctrl dove_mpp_controls[] = {
+ MPP_FUNC_CTRL(0, 0, "mpp0", dove_pmu_mpp_ctrl),
+ MPP_FUNC_CTRL(1, 1, "mpp1", dove_pmu_mpp_ctrl),
+ MPP_FUNC_CTRL(2, 2, "mpp2", dove_pmu_mpp_ctrl),
+ MPP_FUNC_CTRL(3, 3, "mpp3", dove_pmu_mpp_ctrl),
+ MPP_FUNC_CTRL(4, 4, "mpp4", dove_pmu_mpp_ctrl),
+ MPP_FUNC_CTRL(5, 5, "mpp5", dove_pmu_mpp_ctrl),
+ MPP_FUNC_CTRL(6, 6, "mpp6", dove_pmu_mpp_ctrl),
+ MPP_FUNC_CTRL(7, 7, "mpp7", dove_pmu_mpp_ctrl),
+ MPP_FUNC_CTRL(8, 8, "mpp8", dove_pmu_mpp_ctrl),
+ MPP_FUNC_CTRL(9, 9, "mpp9", dove_pmu_mpp_ctrl),
+ MPP_FUNC_CTRL(10, 10, "mpp10", dove_pmu_mpp_ctrl),
+ MPP_FUNC_CTRL(11, 11, "mpp11", dove_pmu_mpp_ctrl),
+ MPP_FUNC_CTRL(12, 12, "mpp12", dove_pmu_mpp_ctrl),
+ MPP_FUNC_CTRL(13, 13, "mpp13", dove_pmu_mpp_ctrl),
+ MPP_FUNC_CTRL(14, 14, "mpp14", dove_pmu_mpp_ctrl),
+ MPP_FUNC_CTRL(15, 15, "mpp15", dove_pmu_mpp_ctrl),
+ MPP_REG_CTRL(16, 23),
+ MPP_FUNC_CTRL(24, 39, "mpp_camera", dove_mpp4_ctrl),
+ MPP_FUNC_CTRL(40, 45, "mpp_sdio0", dove_mpp4_ctrl),
+ MPP_FUNC_CTRL(46, 51, "mpp_sdio1", dove_mpp4_ctrl),
+ MPP_FUNC_GPIO_CTRL(52, 57, "mpp_audio1", dove_audio1_ctrl),
+ MPP_FUNC_CTRL(58, 61, "mpp_spi0", dove_mpp4_ctrl),
+ MPP_FUNC_CTRL(62, 63, "mpp_uart1", dove_mpp4_ctrl),
+ MPP_FUNC_CTRL(64, 71, "mpp_nand", dove_nand_ctrl),
+ MPP_FUNC_CTRL(72, 72, "audio0", dove_audio0_ctrl),
+ MPP_FUNC_CTRL(73, 73, "twsi", dove_twsi_ctrl),
+};
+
+static struct mvebu_mpp_mode dove_mpp_modes[] = {
+ MPP_MODE(0,
+ MPP_FUNCTION(0x00, "gpio", NULL),
+ MPP_FUNCTION(0x02, "uart2", "rts"),
+ MPP_FUNCTION(0x03, "sdio0", "cd"),
+ MPP_FUNCTION(0x0f, "lcd0", "pwm"),
+ MPP_FUNCTION(0x10, "pmu", NULL)),
+ MPP_MODE(1,
+ MPP_FUNCTION(0x00, "gpio", NULL),
+ MPP_FUNCTION(0x02, "uart2", "cts"),
+ MPP_FUNCTION(0x03, "sdio0", "wp"),
+ MPP_FUNCTION(0x0f, "lcd1", "pwm"),
+ MPP_FUNCTION(0x10, "pmu", NULL)),
+ MPP_MODE(2,
+ MPP_FUNCTION(0x00, "gpio", NULL),
+ MPP_FUNCTION(0x01, "sata", "prsnt"),
+ MPP_FUNCTION(0x02, "uart2", "txd"),
+ MPP_FUNCTION(0x03, "sdio0", "buspwr"),
+ MPP_FUNCTION(0x04, "uart1", "rts"),
+ MPP_FUNCTION(0x10, "pmu", NULL)),
+ MPP_MODE(3,
+ MPP_FUNCTION(0x00, "gpio", NULL),
+ MPP_FUNCTION(0x01, "sata", "act"),
+ MPP_FUNCTION(0x02, "uart2", "rxd"),
+ MPP_FUNCTION(0x03, "sdio0", "ledctrl"),
+ MPP_FUNCTION(0x04, "uart1", "cts"),
+ MPP_FUNCTION(0x0f, "lcd-spi", "cs1"),
+ MPP_FUNCTION(0x10, "pmu", NULL)),
+ MPP_MODE(4,
+ MPP_FUNCTION(0x00, "gpio", NULL),
+ MPP_FUNCTION(0x02, "uart3", "rts"),
+ MPP_FUNCTION(0x03, "sdio1", "cd"),
+ MPP_FUNCTION(0x04, "spi1", "miso"),
+ MPP_FUNCTION(0x10, "pmu", NULL)),
+ MPP_MODE(5,
+ MPP_FUNCTION(0x00, "gpio", NULL),
+ MPP_FUNCTION(0x02, "uart3", "cts"),
+ MPP_FUNCTION(0x03, "sdio1", "wp"),
+ MPP_FUNCTION(0x04, "spi1", "cs"),
+ MPP_FUNCTION(0x10, "pmu", NULL)),
+ MPP_MODE(6,
+ MPP_FUNCTION(0x00, "gpio", NULL),
+ MPP_FUNCTION(0x02, "uart3", "txd"),
+ MPP_FUNCTION(0x03, "sdio1", "buspwr"),
+ MPP_FUNCTION(0x04, "spi1", "mosi"),
+ MPP_FUNCTION(0x10, "pmu", NULL)),
+ MPP_MODE(7,
+ MPP_FUNCTION(0x00, "gpio", NULL),
+ MPP_FUNCTION(0x02, "uart3", "rxd"),
+ MPP_FUNCTION(0x03, "sdio1", "ledctrl"),
+ MPP_FUNCTION(0x04, "spi1", "sck"),
+ MPP_FUNCTION(0x10, "pmu", NULL)),
+ MPP_MODE(8,
+ MPP_FUNCTION(0x00, "gpio", NULL),
+ MPP_FUNCTION(0x01, "watchdog", "rstout"),
+ MPP_FUNCTION(0x10, "pmu", NULL)),
+ MPP_MODE(9,
+ MPP_FUNCTION(0x00, "gpio", NULL),
+ MPP_FUNCTION(0x05, "pex1", "clkreq"),
+ MPP_FUNCTION(0x10, "pmu", NULL)),
+ MPP_MODE(10,
+ MPP_FUNCTION(0x00, "gpio", NULL),
+ MPP_FUNCTION(0x05, "ssp", "sclk"),
+ MPP_FUNCTION(0x10, "pmu", NULL)),
+ MPP_MODE(11,
+ MPP_FUNCTION(0x00, "gpio", NULL),
+ MPP_FUNCTION(0x01, "sata", "prsnt"),
+ MPP_FUNCTION(0x02, "sata-1", "act"),
+ MPP_FUNCTION(0x03, "sdio0", "ledctrl"),
+ MPP_FUNCTION(0x04, "sdio1", "ledctrl"),
+ MPP_FUNCTION(0x05, "pex0", "clkreq"),
+ MPP_FUNCTION(0x10, "pmu", NULL)),
+ MPP_MODE(12,
+ MPP_FUNCTION(0x00, "gpio", NULL),
+ MPP_FUNCTION(0x01, "sata", "act"),
+ MPP_FUNCTION(0x02, "uart2", "rts"),
+ MPP_FUNCTION(0x03, "audio0", "extclk"),
+ MPP_FUNCTION(0x04, "sdio1", "cd"),
+ MPP_FUNCTION(0x10, "pmu", NULL)),
+ MPP_MODE(13,
+ MPP_FUNCTION(0x00, "gpio", NULL),
+ MPP_FUNCTION(0x02, "uart2", "cts"),
+ MPP_FUNCTION(0x03, "audio1", "extclk"),
+ MPP_FUNCTION(0x04, "sdio1", "wp"),
+ MPP_FUNCTION(0x05, "ssp", "extclk"),
+ MPP_FUNCTION(0x10, "pmu", NULL)),
+ MPP_MODE(14,
+ MPP_FUNCTION(0x00, "gpio", NULL),
+ MPP_FUNCTION(0x02, "uart2", "txd"),
+ MPP_FUNCTION(0x04, "sdio1", "buspwr"),
+ MPP_FUNCTION(0x05, "ssp", "rxd"),
+ MPP_FUNCTION(0x10, "pmu", NULL)),
+ MPP_MODE(15,
+ MPP_FUNCTION(0x00, "gpio", NULL),
+ MPP_FUNCTION(0x02, "uart2", "rxd"),
+ MPP_FUNCTION(0x04, "sdio1", "ledctrl"),
+ MPP_FUNCTION(0x05, "ssp", "sfrm"),
+ MPP_FUNCTION(0x10, "pmu", NULL)),
+ MPP_MODE(16,
+ MPP_FUNCTION(0x00, "gpio", NULL),
+ MPP_FUNCTION(0x02, "uart3", "rts"),
+ MPP_FUNCTION(0x03, "sdio0", "cd"),
+ MPP_FUNCTION(0x04, "lcd-spi", "cs1"),
+ MPP_FUNCTION(0x05, "ac97", "sdi1")),
+ MPP_MODE(17,
+ MPP_FUNCTION(0x00, "gpio", NULL),
+ MPP_FUNCTION(0x01, "ac97-1", "sysclko"),
+ MPP_FUNCTION(0x02, "uart3", "cts"),
+ MPP_FUNCTION(0x03, "sdio0", "wp"),
+ MPP_FUNCTION(0x04, "twsi", "sda"),
+ MPP_FUNCTION(0x05, "ac97", "sdi2")),
+ MPP_MODE(18,
+ MPP_FUNCTION(0x00, "gpio", NULL),
+ MPP_FUNCTION(0x02, "uart3", "txd"),
+ MPP_FUNCTION(0x03, "sdio0", "buspwr"),
+ MPP_FUNCTION(0x04, "lcd0", "pwm"),
+ MPP_FUNCTION(0x05, "ac97", "sdi3")),
+ MPP_MODE(19,
+ MPP_FUNCTION(0x00, "gpio", NULL),
+ MPP_FUNCTION(0x02, "uart3", "rxd"),
+ MPP_FUNCTION(0x03, "sdio0", "ledctrl"),
+ MPP_FUNCTION(0x04, "twsi", "sck")),
+ MPP_MODE(20,
+ MPP_FUNCTION(0x00, "gpio", NULL),
+ MPP_FUNCTION(0x01, "ac97", "sysclko"),
+ MPP_FUNCTION(0x02, "lcd-spi", "miso"),
+ MPP_FUNCTION(0x03, "sdio1", "cd"),
+ MPP_FUNCTION(0x05, "sdio0", "cd"),
+ MPP_FUNCTION(0x06, "spi1", "miso")),
+ MPP_MODE(21,
+ MPP_FUNCTION(0x00, "gpio", NULL),
+ MPP_FUNCTION(0x01, "uart1", "rts"),
+ MPP_FUNCTION(0x02, "lcd-spi", "cs0"),
+ MPP_FUNCTION(0x03, "sdio1", "wp"),
+ MPP_FUNCTION(0x04, "ssp", "sfrm"),
+ MPP_FUNCTION(0x05, "sdio0", "wp"),
+ MPP_FUNCTION(0x06, "spi1", "cs")),
+ MPP_MODE(22,
+ MPP_FUNCTION(0x00, "gpio", NULL),
+ MPP_FUNCTION(0x01, "uart1", "cts"),
+ MPP_FUNCTION(0x02, "lcd-spi", "mosi"),
+ MPP_FUNCTION(0x03, "sdio1", "buspwr"),
+ MPP_FUNCTION(0x04, "ssp", "txd"),
+ MPP_FUNCTION(0x05, "sdio0", "buspwr"),
+ MPP_FUNCTION(0x06, "spi1", "mosi")),
+ MPP_MODE(23,
+ MPP_FUNCTION(0x00, "gpio", NULL),
+ MPP_FUNCTION(0x02, "lcd-spi", "sck"),
+ MPP_FUNCTION(0x03, "sdio1", "ledctrl"),
+ MPP_FUNCTION(0x04, "ssp", "sclk"),
+ MPP_FUNCTION(0x05, "sdio0", "ledctrl"),
+ MPP_FUNCTION(0x06, "spi1", "sck")),
+ MPP_MODE(24,
+ MPP_FUNCTION(0x00, "camera", NULL),
+ MPP_FUNCTION(0x01, "gpio", NULL)),
+ MPP_MODE(40,
+ MPP_FUNCTION(0x00, "sdio0", NULL),
+ MPP_FUNCTION(0x01, "gpio", NULL)),
+ MPP_MODE(46,
+ MPP_FUNCTION(0x00, "sdio1", NULL),
+ MPP_FUNCTION(0x01, "gpio", NULL)),
+ MPP_MODE(52,
+ MPP_FUNCTION(0x00, "i2s1/spdifo", NULL),
+ MPP_FUNCTION(0x02, "i2s1", NULL),
+ MPP_FUNCTION(0x08, "spdifo", NULL),
+ MPP_FUNCTION(0x0a, "gpio", NULL),
+ MPP_FUNCTION(0x0b, "twsi", NULL),
+ MPP_FUNCTION(0x0c, "ssp/spdifo", NULL),
+ MPP_FUNCTION(0x0e, "ssp", NULL),
+ MPP_FUNCTION(0x0f, "ssp/twsi", NULL)),
+ MPP_MODE(58,
+ MPP_FUNCTION(0x00, "spi0", NULL),
+ MPP_FUNCTION(0x01, "gpio", NULL)),
+ MPP_MODE(62,
+ MPP_FUNCTION(0x00, "uart1", NULL),
+ MPP_FUNCTION(0x01, "gpio", NULL)),
+ MPP_MODE(64,
+ MPP_FUNCTION(0x00, "nand", NULL),
+ MPP_FUNCTION(0x01, "gpo", NULL)),
+ MPP_MODE(72,
+ MPP_FUNCTION(0x00, "i2s", NULL),
+ MPP_FUNCTION(0x01, "ac97", NULL)),
+ MPP_MODE(73,
+ MPP_FUNCTION(0x00, "twsi-none", NULL),
+ MPP_FUNCTION(0x01, "twsi-opt1", NULL),
+ MPP_FUNCTION(0x02, "twsi-opt2", NULL),
+ MPP_FUNCTION(0x03, "twsi-opt3", NULL)),
+};
+
+static struct pinctrl_gpio_range dove_mpp_gpio_ranges[] = {
+ MPP_GPIO_RANGE(0, 0, 0, 32),
+ MPP_GPIO_RANGE(1, 32, 32, 32),
+ MPP_GPIO_RANGE(2, 64, 64, 8),
+};
+
+static struct mvebu_pinctrl_soc_info dove_pinctrl_info = {
+ .controls = dove_mpp_controls,
+ .ncontrols = ARRAY_SIZE(dove_mpp_controls),
+ .modes = dove_mpp_modes,
+ .nmodes = ARRAY_SIZE(dove_mpp_modes),
+ .gpioranges = dove_mpp_gpio_ranges,
+ .ngpioranges = ARRAY_SIZE(dove_mpp_gpio_ranges),
+ .variant = 0,
+};
+
+static struct clk *clk;
+
+static struct of_device_id dove_pinctrl_of_match[] __devinitdata = {
+ { .compatible = "marvell,dove-pinctrl", .data = &dove_pinctrl_info },
+ { }
+};
+
+static int __devinit dove_pinctrl_probe(struct platform_device *pdev)
+{
+ const struct of_device_id *match =
+ of_match_device(dove_pinctrl_of_match, &pdev->dev);
+ pdev->dev.platform_data = match->data;
+
+ /*
+ * General MPP Configuration Register is part of pdma registers.
+ * grab clk to make sure it is ticking.
+ */
+ clk = devm_clk_get(&pdev->dev, NULL);
+ if (!IS_ERR(clk))
+ clk_prepare_enable(clk);
+
+ return mvebu_pinctrl_probe(pdev);
+}
+
+static int __devexit dove_pinctrl_remove(struct platform_device *pdev)
+{
+ int ret;
+
+ ret = mvebu_pinctrl_remove(pdev);
+ if (!IS_ERR(clk))
+ clk_disable_unprepare(clk);
+ return ret;
+}
+
+static struct platform_driver dove_pinctrl_driver = {
+ .driver = {
+ .name = "dove-pinctrl",
+ .owner = THIS_MODULE,
+ .of_match_table = of_match_ptr(dove_pinctrl_of_match),
+ },
+ .probe = dove_pinctrl_probe,
+ .remove = __devexit_p(dove_pinctrl_remove),
+};
+
+module_platform_driver(dove_pinctrl_driver);
+
+MODULE_AUTHOR("Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>");
+MODULE_DESCRIPTION("Marvell Dove pinctrl driver");
+MODULE_LICENSE("GPL v2");
--
1.7.10.4


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  Last update: 2012-09-13 18:21    [W:0.797 / U:4.368 seconds]
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