diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2012-10-09 16:08:04 +0900 |
---|---|---|
committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-10-09 16:08:04 +0900 |
commit | de390bba797aa9a554bc1769b6a8771605854d79 (patch) | |
tree | ce95610d4a70ec0a7307a30cfd1a66fdf0c901ab /drivers/pinctrl | |
parent | 50e0d10232db05c6776afcf6098459bff47e8b15 (diff) | |
parent | 382fc33b4a04e2dde89b4c69a6880e0c7d9761e2 (diff) |
Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus
Pull MIPS update from Ralf Baechle:
"This is the MIPS update for 3.7.
A fair chunk of them are platform updates to the Cavium Octeon SOC
(which involves machine generated header files of considerable size),
Atheros ATH79xx, RMI aka Netlogic aka Broadcom XLP, Broadcom BCM63xx
platforms.
Support for the commercial MIPS simulator MIPSsim has been removed as
MIPS Technologies is shifting away from this product and Qemu is
offering various more powerful platforms. The generic MIPS code can
now also probe for no-execute / write-only TLB features implemented
without the full SmartMIPS extension as permitted by the latest MIPS
processor architecture. Lots of small changes to generic code."
* 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus: (78 commits)
MIPS: ath79: Fix CPU/DDR frequency calculation for SRIF PLLs
MIPS: ath79: use correct fractional dividers for {CPU,DDR}_PLL on AR934x
MIPS: BCM63XX: Properly handle mac address octet overflow
MIPS: Kconfig: Avoid build errors by hiding USE_OF from the user.
MIPS: Replace `-' in defconfig filename wth `_' for consistency.
MIPS: Wire kcmp syscall.
MIPS: MIPSsim: Remove the MIPSsim platform.
MIPS: NOTIFY_RESUME is not needed in TIF masks
MIPS: Merge the identical "return from syscall" per-ABI code
MIPS: Unobfuscate _TIF..._MASK
MIPS: Prevent hitting do_notify_resume() with !user_mode(regs).
MIPS: Replace 'kernel_uses_smartmips_rixi' with 'cpu_has_rixi'.
MIPS: Add base architecture support for RI and XI.
MIPS: Optimise TLB handlers for MIPS32/64 R2 cores.
MIPS: uasm: Add INS and EXT instructions.
MIPS: Avoid pipeline stalls on some MIPS32R2 cores.
MIPS: Make VPE count to be one-based.
MIPS: Add new end of interrupt functionality for GIC.
MIPS: Add EIC support for GIC.
MIPS: Code clean-ups for the GIC.
...
Diffstat (limited to 'drivers/pinctrl')
-rw-r--r-- | drivers/pinctrl/Kconfig | 16 | ||||
-rw-r--r-- | drivers/pinctrl/Makefile | 3 | ||||
-rw-r--r-- | drivers/pinctrl/pinctrl-falcon.c | 468 | ||||
-rw-r--r-- | drivers/pinctrl/pinctrl-lantiq.c | 342 | ||||
-rw-r--r-- | drivers/pinctrl/pinctrl-lantiq.h | 194 | ||||
-rw-r--r-- | drivers/pinctrl/pinctrl-xway.c | 781 |
6 files changed, 1804 insertions, 0 deletions
diff --git a/drivers/pinctrl/Kconfig b/drivers/pinctrl/Kconfig index 33e3df9e39c..7bf914df6e9 100644 --- a/drivers/pinctrl/Kconfig +++ b/drivers/pinctrl/Kconfig @@ -68,10 +68,21 @@ config PINCTRL_IMX6Q help Say Y here to enable the imx6q pinctrl driver +config PINCTRL_LANTIQ + bool + depends on LANTIQ + select PINMUX + select PINCONF + config PINCTRL_PXA3xx bool select PINMUX +config PINCTRL_FALCON + bool + depends on SOC_FALCON + depends on PINCTRL_LANTIQ + config PINCTRL_MMP2 bool "MMP2 pin controller driver" depends on ARCH_MMP @@ -199,6 +210,11 @@ config PINCTRL_ARMADA_XP source "drivers/pinctrl/spear/Kconfig" +config PINCTRL_XWAY + bool + depends on SOC_TYPE_XWAY + depends on PINCTRL_LANTIQ + endmenu endif diff --git a/drivers/pinctrl/Makefile b/drivers/pinctrl/Makefile index f162e019630..f395ba5cec2 100644 --- a/drivers/pinctrl/Makefile +++ b/drivers/pinctrl/Makefile @@ -16,6 +16,7 @@ obj-$(CONFIG_PINCTRL_IMX51) += pinctrl-imx51.o obj-$(CONFIG_PINCTRL_IMX53) += pinctrl-imx53.o obj-$(CONFIG_PINCTRL_IMX6Q) += pinctrl-imx6q.o obj-$(CONFIG_PINCTRL_PXA3xx) += pinctrl-pxa3xx.o +obj-$(CONFIG_PINCTRL_FALCON) += pinctrl-falcon.o obj-$(CONFIG_PINCTRL_MMP2) += pinctrl-mmp2.o obj-$(CONFIG_PINCTRL_MXS) += pinctrl-mxs.o obj-$(CONFIG_PINCTRL_IMX23) += pinctrl-imx23.o @@ -40,5 +41,7 @@ obj-$(CONFIG_PINCTRL_DOVE) += pinctrl-dove.o obj-$(CONFIG_PINCTRL_KIRKWOOD) += pinctrl-kirkwood.o obj-$(CONFIG_PINCTRL_ARMADA_370) += pinctrl-armada-370.o obj-$(CONFIG_PINCTRL_ARMADA_XP) += pinctrl-armada-xp.o +obj-$(CONFIG_PINCTRL_XWAY) += pinctrl-xway.o +obj-$(CONFIG_PINCTRL_LANTIQ) += pinctrl-lantiq.o obj-$(CONFIG_PLAT_SPEAR) += spear/ diff --git a/drivers/pinctrl/pinctrl-falcon.c b/drivers/pinctrl/pinctrl-falcon.c new file mode 100644 index 00000000000..ee730590347 --- /dev/null +++ b/drivers/pinctrl/pinctrl-falcon.c @@ -0,0 +1,468 @@ +/* + * linux/drivers/pinctrl/pinmux-falcon.c + * based on linux/drivers/pinctrl/pinmux-pxa910.c + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published + * by the Free Software Foundation. + * + * Copyright (C) 2012 Thomas Langer <thomas.langer@lantiq.com> + * Copyright (C) 2012 John Crispin <blogic@openwrt.org> + */ + +#include <linux/gpio.h> +#include <linux/interrupt.h> +#include <linux/slab.h> +#include <linux/export.h> +#include <linux/err.h> +#include <linux/module.h> +#include <linux/of.h> +#include <linux/of_platform.h> +#include <linux/of_address.h> +#include <linux/of_gpio.h> +#include <linux/platform_device.h> + +#include "pinctrl-lantiq.h" + +#include <lantiq_soc.h> + +/* Multiplexer Control Register */ +#define LTQ_PADC_MUX(x) (x * 0x4) +/* Pull Up Enable Register */ +#define LTQ_PADC_PUEN 0x80 +/* Pull Down Enable Register */ +#define LTQ_PADC_PDEN 0x84 +/* Slew Rate Control Register */ +#define LTQ_PADC_SRC 0x88 +/* Drive Current Control Register */ +#define LTQ_PADC_DCC 0x8C +/* Pad Control Availability Register */ +#define LTQ_PADC_AVAIL 0xF0 + +#define pad_r32(p, reg) ltq_r32(p + reg) +#define pad_w32(p, val, reg) ltq_w32(val, p + reg) +#define pad_w32_mask(c, clear, set, reg) \ + pad_w32(c, (pad_r32(c, reg) & ~(clear)) | (set), reg) + +#define pad_getbit(m, r, p) (!!(ltq_r32(m + r) & (1 << p))) + +#define PORTS 5 +#define PINS 32 +#define PORT(x) (x / PINS) +#define PORT_PIN(x) (x % PINS) + +#define MFP_FALCON(a, f0, f1, f2, f3) \ +{ \ + .name = #a, \ + .pin = a, \ + .func = { \ + FALCON_MUX_##f0, \ + FALCON_MUX_##f1, \ + FALCON_MUX_##f2, \ + FALCON_MUX_##f3, \ + }, \ +} + +#define GRP_MUX(a, m, p) \ +{ \ + .name = a, \ + .mux = FALCON_MUX_##m, \ + .pins = p, \ + .npins = ARRAY_SIZE(p), \ +} + +enum falcon_mux { + FALCON_MUX_GPIO = 0, + FALCON_MUX_RST, + FALCON_MUX_NTR, + FALCON_MUX_MDIO, + FALCON_MUX_LED, + FALCON_MUX_SPI, + FALCON_MUX_ASC, + FALCON_MUX_I2C, + FALCON_MUX_HOSTIF, + FALCON_MUX_SLIC, + FALCON_MUX_JTAG, + FALCON_MUX_PCM, + FALCON_MUX_MII, + FALCON_MUX_PHY, + FALCON_MUX_NONE = 0xffff, +}; + +static struct pinctrl_pin_desc falcon_pads[PORTS * PINS]; +static int pad_count[PORTS]; + +static void lantiq_load_pin_desc(struct pinctrl_pin_desc *d, int bank, int len) +{ + int base = bank * PINS; + int i; + + for (i = 0; i < len; i++) { + /* strlen("ioXYZ") + 1 = 6 */ + char *name = kzalloc(6, GFP_KERNEL); + snprintf(name, 6, "io%d", base + i); + d[i].number = base + i; + d[i].name = name; + } + pad_count[bank] = len; +} + +static struct ltq_mfp_pin falcon_mfp[] = { + /* pin f0 f1 f2 f3 */ + MFP_FALCON(GPIO0, RST, GPIO, NONE, NONE), + MFP_FALCON(GPIO1, GPIO, GPIO, NONE, NONE), + MFP_FALCON(GPIO2, GPIO, GPIO, NONE, NONE), + MFP_FALCON(GPIO3, GPIO, GPIO, NONE, NONE), + MFP_FALCON(GPIO4, NTR, GPIO, NONE, NONE), + MFP_FALCON(GPIO5, NTR, GPIO, NONE, NONE), + MFP_FALCON(GPIO6, RST, GPIO, NONE, NONE), + MFP_FALCON(GPIO7, MDIO, GPIO, NONE, NONE), + MFP_FALCON(GPIO8, MDIO, GPIO, NONE, NONE), + MFP_FALCON(GPIO9, LED, GPIO, NONE, NONE), + MFP_FALCON(GPIO10, LED, GPIO, NONE, NONE), + MFP_FALCON(GPIO11, LED, GPIO, NONE, NONE), + MFP_FALCON(GPIO12, LED, GPIO, NONE, NONE), + MFP_FALCON(GPIO13, LED, GPIO, NONE, NONE), + MFP_FALCON(GPIO14, LED, GPIO, NONE, NONE), + MFP_FALCON(GPIO32, ASC, GPIO, NONE, NONE), + MFP_FALCON(GPIO33, ASC, GPIO, NONE, NONE), + MFP_FALCON(GPIO34, SPI, GPIO, NONE, NONE), + MFP_FALCON(GPIO35, SPI, GPIO, NONE, NONE), + MFP_FALCON(GPIO36, SPI, GPIO, NONE, NONE), + MFP_FALCON(GPIO37, SPI, GPIO, NONE, NONE), + MFP_FALCON(GPIO38, SPI, GPIO, NONE, NONE), + MFP_FALCON(GPIO39, I2C, GPIO, NONE, NONE), + MFP_FALCON(GPIO40, I2C, GPIO, NONE, NONE), + MFP_FALCON(GPIO41, HOSTIF, GPIO, HOSTIF, JTAG), + MFP_FALCON(GPIO42, HOSTIF, GPIO, HOSTIF, NONE), + MFP_FALCON(GPIO43, SLIC, GPIO, NONE, NONE), + MFP_FALCON(GPIO44, SLIC, GPIO, PCM, ASC), + MFP_FALCON(GPIO45, SLIC, GPIO, PCM, ASC), + MFP_FALCON(GPIO64, MII, GPIO, NONE, NONE), + MFP_FALCON(GPIO65, MII, GPIO, NONE, NONE), + MFP_FALCON(GPIO66, MII, GPIO, NONE, NONE), + MFP_FALCON(GPIO67, MII, GPIO, NONE, NONE), + MFP_FALCON(GPIO68, MII, GPIO, NONE, NONE), + MFP_FALCON(GPIO69, MII, GPIO, NONE, NONE), + MFP_FALCON(GPIO70, MII, GPIO, NONE, NONE), + MFP_FALCON(GPIO71, MII, GPIO, NONE, NONE), + MFP_FALCON(GPIO72, MII, GPIO, NONE, NONE), + MFP_FALCON(GPIO73, MII, GPIO, NONE, NONE), + MFP_FALCON(GPIO74, MII, GPIO, NONE, NONE), + MFP_FALCON(GPIO75, MII, GPIO, NONE, NONE), + MFP_FALCON(GPIO76, MII, GPIO, NONE, NONE), + MFP_FALCON(GPIO77, MII, GPIO, NONE, NONE), + MFP_FALCON(GPIO78, MII, GPIO, NONE, NONE), + MFP_FALCON(GPIO79, MII, GPIO, NONE, NONE), + MFP_FALCON(GPIO80, MII, GPIO, NONE, NONE), + MFP_FALCON(GPIO81, MII, GPIO, NONE, NONE), + MFP_FALCON(GPIO82, MII, GPIO, NONE, NONE), + MFP_FALCON(GPIO83, MII, GPIO, NONE, NONE), + MFP_FALCON(GPIO84, MII, GPIO, NONE, NONE), + MFP_FALCON(GPIO85, MII, GPIO, NONE, NONE), + MFP_FALCON(GPIO86, MII, GPIO, NONE, NONE), + MFP_FALCON(GPIO87, MII, GPIO, NONE, NONE), + MFP_FALCON(GPIO88, PHY, GPIO, NONE, NONE), +}; + +static const unsigned pins_por[] = {GPIO0}; +static const unsigned pins_ntr[] = {GPIO4}; +static const unsigned pins_ntr8k[] = {GPIO5}; +static const unsigned pins_hrst[] = {GPIO6}; +static const unsigned pins_mdio[] = {GPIO7, GPIO8}; +static const unsigned pins_bled[] = {GPIO7, GPIO10, GPIO11, + GPIO12, GPIO13, GPIO14}; +static const unsigned pins_asc0[] = {GPIO32, GPIO33}; +static const unsigned pins_spi[] = {GPIO34, GPIO35, GPIO36}; +static const unsigned pins_spi_cs0[] = {GPIO37}; +static const unsigned pins_spi_cs1[] = {GPIO38}; +static const unsigned pins_i2c[] = {GPIO39, GPIO40}; +static const unsigned pins_jtag[] = {GPIO41}; +static const unsigned pins_slic[] = {GPIO43, GPIO44, GPIO45}; +static const unsigned pins_pcm[] = {GPIO44, GPIO45}; +static const unsigned pins_asc1[] = {GPIO44, GPIO45}; + +static struct ltq_pin_group falcon_grps[] = { + GRP_MUX("por", RST, pins_por), + GRP_MUX("ntr", NTR, pins_ntr), + GRP_MUX("ntr8k", NTR, pins_ntr8k), + GRP_MUX("hrst", RST, pins_hrst), + GRP_MUX("mdio", MDIO, pins_mdio), + GRP_MUX("bootled", LED, pins_bled), + GRP_MUX("asc0", ASC, pins_asc0), + GRP_MUX("spi", SPI, pins_spi), + GRP_MUX("spi cs0", SPI, pins_spi_cs0), + GRP_MUX("spi cs1", SPI, pins_spi_cs1), + GRP_MUX("i2c", I2C, pins_i2c), + GRP_MUX("jtag", JTAG, pins_jtag), + GRP_MUX("slic", SLIC, pins_slic), + GRP_MUX("pcm", PCM, pins_pcm), + GRP_MUX("asc1", ASC, pins_asc1), +}; + +static const char * const ltq_rst_grps[] = {"por", "hrst"}; +static const char * const ltq_ntr_grps[] = {"ntr", "ntr8k"}; +static const char * const ltq_mdio_grps[] = {"mdio"}; +static const char * const ltq_bled_grps[] = {"bootled"}; +static const char * const ltq_asc_grps[] = {"asc0", "asc1"}; +static const char * const ltq_spi_grps[] = {"spi", "spi cs0", "spi cs1"}; +static const char * const ltq_i2c_grps[] = {"i2c"}; +static const char * const ltq_jtag_grps[] = {"jtag"}; +static const char * const ltq_slic_grps[] = {"slic"}; +static const char * const ltq_pcm_grps[] = {"pcm"}; + +static struct ltq_pmx_func falcon_funcs[] = { + {"rst", ARRAY_AND_SIZE(ltq_rst_grps)}, + {"ntr", ARRAY_AND_SIZE(ltq_ntr_grps)}, + {"mdio", ARRAY_AND_SIZE(ltq_mdio_grps)}, + {"led", ARRAY_AND_SIZE(ltq_bled_grps)}, + {"asc", ARRAY_AND_SIZE(ltq_asc_grps)}, + {"spi", ARRAY_AND_SIZE(ltq_spi_grps)}, + {"i2c", ARRAY_AND_SIZE(ltq_i2c_grps)}, + {"jtag", ARRAY_AND_SIZE(ltq_jtag_grps)}, + {"slic", ARRAY_AND_SIZE(ltq_slic_grps)}, + {"pcm", ARRAY_AND_SIZE(ltq_pcm_grps)}, +}; + + + + +/* --------- pinconf related code --------- */ +static int falcon_pinconf_group_get(struct pinctrl_dev *pctrldev, + unsigned group, unsigned long *config) +{ + return -ENOTSUPP; +} + +static int falcon_pinconf_group_set(struct pinctrl_dev *pctrldev, + unsigned group, unsigned long config) +{ + return -ENOTSUPP; +} + +static int falcon_pinconf_get(struct pinctrl_dev *pctrldev, + unsigned pin, unsigned long *config) +{ + struct ltq_pinmux_info *info = pinctrl_dev_get_drvdata(pctrldev); + enum ltq_pinconf_param param = LTQ_PINCONF_UNPACK_PARAM(*config); + void __iomem *mem = info->membase[PORT(pin)]; + + switch (param) { + case LTQ_PINCONF_PARAM_DRIVE_CURRENT: + *config = LTQ_PINCONF_PACK(param, + !!pad_getbit(mem, LTQ_PADC_DCC, PORT_PIN(pin))); + break; + + case LTQ_PINCONF_PARAM_SLEW_RATE: + *config = LTQ_PINCONF_PACK(param, + !!pad_getbit(mem, LTQ_PADC_SRC, PORT_PIN(pin))); + break; + + case LTQ_PINCONF_PARAM_PULL: + if (pad_getbit(mem, LTQ_PADC_PDEN, PORT_PIN(pin))) + *config = LTQ_PINCONF_PACK(param, 1); + else if (pad_getbit(mem, LTQ_PADC_PUEN, PORT_PIN(pin))) + *config = LTQ_PINCONF_PACK(param, 2); + else + *config = LTQ_PINCONF_PACK(param, 0); + + break; + + default: + return -ENOTSUPP; + } + + return 0; +} + +static int falcon_pinconf_set(struct pinctrl_dev *pctrldev, + unsigned pin, unsigned long config) +{ + enum ltq_pinconf_param param = LTQ_PINCONF_UNPACK_PARAM(config); + int arg = LTQ_PINCONF_UNPACK_ARG(config); + struct ltq_pinmux_info *info = pinctrl_dev_get_drvdata(pctrldev); + void __iomem *mem = info->membase[PORT(pin)]; + u32 reg; + + switch (param) { + case LTQ_PINCONF_PARAM_DRIVE_CURRENT: + reg = LTQ_PADC_DCC; + break; + + case LTQ_PINCONF_PARAM_SLEW_RATE: + reg = LTQ_PADC_SRC; + break; + + case LTQ_PINCONF_PARAM_PULL: + if (arg == 1) + reg = LTQ_PADC_PDEN; + else + reg = LTQ_PADC_PUEN; + break; + + default: + pr_err("%s: Invalid config param %04x\n", + pinctrl_dev_get_name(pctrldev), param); + return -ENOTSUPP; + } + + pad_w32(mem, BIT(PORT_PIN(pin)), reg); + if (!(pad_r32(mem, reg) & BIT(PORT_PIN(pin)))) + return -ENOTSUPP; + return 0; +} + +static void falcon_pinconf_dbg_show(struct pinctrl_dev *pctrldev, + struct seq_file *s, unsigned offset) +{ +} + +static void falcon_pinconf_group_dbg_show(struct pinctrl_dev *pctrldev, + struct seq_file *s, unsigned selector) +{ +} + +struct pinconf_ops falcon_pinconf_ops = { + .pin_config_get = falcon_pinconf_get, + .pin_config_set = falcon_pinconf_set, + .pin_config_group_get = falcon_pinconf_group_get, + .pin_config_group_set = falcon_pinconf_group_set, + .pin_config_dbg_show = falcon_pinconf_dbg_show, + .pin_config_group_dbg_show = falcon_pinconf_group_dbg_show, +}; + +static struct pinctrl_desc falcon_pctrl_desc = { + .owner = THIS_MODULE, + .pins = falcon_pads, + .confops = &falcon_pinconf_ops, +}; + +static inline int falcon_mux_apply(struct pinctrl_dev *pctrldev, + int mfp, int mux) +{ + struct ltq_pinmux_info *info = pinctrl_dev_get_drvdata(pctrldev); + int port = PORT(info->mfp[mfp].pin); + + if ((port >= PORTS) || (!info->membase[port])) + return -ENODEV; + + pad_w32(info->membase[port], mux, + LTQ_PADC_MUX(PORT_PIN(info->mfp[mfp].pin))); + return 0; +} + +static const struct ltq_cfg_param falcon_cfg_params[] = { + {"lantiq,pull", LTQ_PINCONF_PARAM_PULL}, + {"lantiq,drive-current", LTQ_PINCONF_PARAM_DRIVE_CURRENT}, + {"lantiq,slew-rate", LTQ_PINCONF_PARAM_SLEW_RATE}, +}; + +static struct ltq_pinmux_info falcon_info = { + .desc = &falcon_pctrl_desc, + .apply_mux = falcon_mux_apply, +}; + + + + +/* --------- register the pinctrl layer --------- */ + +int pinctrl_falcon_get_range_size(int id) +{ + u32 avail; + + if ((id >= PORTS) || (!falcon_info.membase[id])) + return -EINVAL; + + avail = pad_r32(falcon_info.membase[id], LTQ_PADC_AVAIL); + + return fls(avail); +} + +void pinctrl_falcon_add_gpio_range(struct pinctrl_gpio_range *range) +{ + pinctrl_add_gpio_range(falcon_info.pctrl, range); +} + +static int pinctrl_falcon_probe(struct platform_device *pdev) +{ + struct device_node *np; + int pad_count = 0; + int ret = 0; + + /* load and remap the pad resources of the different banks */ + for_each_compatible_node(np, NULL, "lantiq,pad-falcon") { + struct platform_device *ppdev = of_find_device_by_node(np); + const __be32 *bank = of_get_property(np, "lantiq,bank", NULL); + struct resource res; + u32 avail; + int pins; + + if (!ppdev) { + dev_err(&pdev->dev, "failed to find pad pdev\n"); + continue; + } + if (!bank || *bank >= PORTS) + continue; + if (of_address_to_resource(np, 0, &res)) + continue; + falcon_info.clk[*bank] = clk_get(&ppdev->dev, NULL); + if (IS_ERR(falcon_info.clk[*bank])) { + dev_err(&ppdev->dev, "failed to get clock\n"); + return PTR_ERR(falcon_info.clk[*bank]); + } + falcon_info.membase[*bank] = + devm_request_and_ioremap(&pdev->dev, &res); + if (!falcon_info.membase[*bank]) { + dev_err(&pdev->dev, + "Failed to remap memory for bank %d\n", + *bank); + return -ENOMEM; + } + avail = pad_r32(falcon_info.membase[*bank], + LTQ_PADC_AVAIL); + pins = fls(avail); + lantiq_load_pin_desc(&falcon_pads[pad_count], *bank, pins); + pad_count += pins; + clk_enable(falcon_info.clk[*bank]); + dev_dbg(&pdev->dev, "found %s with %d pads\n", + res.name, pins); + } + dev_dbg(&pdev->dev, "found a total of %d pads\n", pad_count); + falcon_pctrl_desc.name = dev_name(&pdev->dev); + falcon_pctrl_desc.npins = pad_count; + + falcon_info.mfp = falcon_mfp; + falcon_info.num_mfp = ARRAY_SIZE(falcon_mfp); + falcon_info.grps = falcon_grps; + falcon_info.num_grps = ARRAY_SIZE(falcon_grps); + falcon_info.funcs = falcon_funcs; + falcon_info.num_funcs = ARRAY_SIZE(falcon_funcs); + + ret = ltq_pinctrl_register(pdev, &falcon_info); + if (!ret) + dev_info(&pdev->dev, "Init done\n"); + return ret; +} + +static const struct of_device_id falcon_match[] = { + { .compatible = "lantiq,pinctrl-falcon" }, + {}, +}; +MODULE_DEVICE_TABLE(of, falcon_match); + +static struct platform_driver pinctrl_falcon_driver = { + .probe = pinctrl_falcon_probe, + .driver = { + .name = "pinctrl-falcon", + .owner = THIS_MODULE, + .of_match_table = falcon_match, + }, +}; + +int __init pinctrl_falcon_init(void) +{ + return platform_driver_register(&pinctrl_falcon_driver); +} + +core_initcall_sync(pinctrl_falcon_init); diff --git a/drivers/pinctrl/pinctrl-lantiq.c b/drivers/pinctrl/pinctrl-lantiq.c new file mode 100644 index 00000000000..07ba7682cf2 --- /dev/null +++ b/drivers/pinctrl/pinctrl-lantiq.c @@ -0,0 +1,342 @@ +/* + * linux/drivers/pinctrl/pinctrl-lantiq.c + * based on linux/drivers/pinctrl/pinctrl-pxa3xx.c + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * publishhed by the Free Software Foundation. + * + * Copyright (C) 2012 John Crispin <blogic@openwrt.org> + */ + +#include <linux/module.h> +#include <linux/device.h> +#include <linux/io.h> +#include <linux/platform_device.h> +#include <linux/slab.h> +#include <linux/of.h> + +#include "pinctrl-lantiq.h" + +static int ltq_get_group_count(struct pinctrl_dev *pctrldev) +{ + struct ltq_pinmux_info *info = pinctrl_dev_get_drvdata(pctrldev); + return info->num_grps; +} + +static const char *ltq_get_group_name(struct pinctrl_dev *pctrldev, + unsigned selector) +{ + struct ltq_pinmux_info *info = pinctrl_dev_get_drvdata(pctrldev); + if (selector >= info->num_grps) + return NULL; + return info->grps[selector].name; +} + +static int ltq_get_group_pins(struct pinctrl_dev *pctrldev, + unsigned selector, + const unsigned **pins, + unsigned *num_pins) +{ + struct ltq_pinmux_info *info = pinctrl_dev_get_drvdata(pctrldev); + if (selector >= info->num_grps) + return -EINVAL; + *pins = info->grps[selector].pins; + *num_pins = info->grps[selector].npins; + return 0; +} + +void ltq_pinctrl_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_CONFIGS_PIN) + kfree(map[i].data.configs.configs); + kfree(map); +} + +static void ltq_pinctrl_pin_dbg_show(struct pinctrl_dev *pctldev, + struct seq_file *s, + unsigned offset) +{ + seq_printf(s, " %s", dev_name(pctldev->dev)); +} + +static int ltq_pinctrl_dt_subnode_to_map(struct pinctrl_dev *pctldev, + struct device_node *np, + struct pinctrl_map **map) +{ + struct ltq_pinmux_info *info = pinctrl_dev_get_drvdata(pctldev); + unsigned long configs[3]; + unsigned num_configs = 0; + struct property *prop; + const char *group, *pin; + const char *function; + int ret, i; + + ret = of_property_read_string(np, "lantiq,function", &function); + if (!ret) { + of_property_for_each_string(np, "lantiq,groups", prop, group) { + (*map)->type = PIN_MAP_TYPE_MUX_GROUP; + (*map)->name = function; + (*map)->data.mux.group = group; + (*map)->data.mux.function = function; + (*map)++; + } + if (of_find_property(np, "lantiq,pins", NULL)) + dev_err(pctldev->dev, + "%s mixes pins and groups settings\n", + np->name); + return 0; + } + + for (i = 0; i < info->num_params; i++) { + u32 val; + int ret = of_property_read_u32(np, + info->params[i].property, &val); + if (!ret) + configs[num_configs++] = + LTQ_PINCONF_PACK(info->params[i].param, + val); + } + + if (!num_configs) + return -EINVAL; + + of_property_for_each_string(np, "lantiq,pins", prop, pin) { + (*map)->data.configs.configs = kmemdup(configs, + num_configs * sizeof(unsigned long), + GFP_KERNEL); + (*map)->type = PIN_MAP_TYPE_CONFIGS_PIN; + (*map)->name = pin; + (*map)->data.configs.group_or_pin = pin; + (*map)->data.configs.num_configs = num_configs; + (*map)++; + } + return 0; +} + +static int ltq_pinctrl_dt_subnode_size(struct device_node *np) +{ + int ret; + + ret = of_property_count_strings(np, "lantiq,groups"); + if (ret < 0) + ret = of_property_count_strings(np, "lantiq,pins"); + return ret; +} + +int ltq_pinctrl_dt_node_to_map(struct pinctrl_dev *pctldev, + struct device_node *np_config, + struct pinctrl_map **map, + unsigned *num_maps) +{ + struct pinctrl_map *tmp; + struct device_node *np; + int ret; + + *num_maps = 0; + for_each_child_of_node(np_config, np) + *num_maps += ltq_pinctrl_dt_subnode_size(np); + *map = kzalloc(*num_maps * sizeof(struct pinctrl_map), GFP_KERNEL); + if (!*map) + return -ENOMEM; + tmp = *map; + + for_each_child_of_node(np_config, np) { + ret = ltq_pinctrl_dt_subnode_to_map(pctldev, np, &tmp); + if (ret < 0) { + ltq_pinctrl_dt_free_map(pctldev, *map, *num_maps); + return ret; + } + } + return 0; +} + +static struct pinctrl_ops ltq_pctrl_ops = { + .get_groups_count = ltq_get_group_count, + .get_group_name = ltq_get_group_name, + .get_group_pins = ltq_get_group_pins, + .pin_dbg_show = ltq_pinctrl_pin_dbg_show, + .dt_node_to_map = ltq_pinctrl_dt_node_to_map, + .dt_free_map = ltq_pinctrl_dt_free_map, +}; + +static int ltq_pmx_func_count(struct pinctrl_dev *pctrldev) +{ + struct ltq_pinmux_info *info = pinctrl_dev_get_drvdata(pctrldev); + + return info->num_funcs; +} + +static const char *ltq_pmx_func_name(struct pinctrl_dev *pctrldev, + unsigned selector) +{ + struct ltq_pinmux_info *info = pinctrl_dev_get_drvdata(pctrldev); + + if (selector >= info->num_funcs) + return NULL; + + return info->funcs[selector].name; +} + +static int ltq_pmx_get_groups(struct pinctrl_dev *pctrldev, + unsigned func, + const char * const **groups, + unsigned * const num_groups) +{ + struct ltq_pinmux_info *info = pinctrl_dev_get_drvdata(pctrldev); + + *groups = info->funcs[func].groups; + *num_groups = info->funcs[func].num_groups; + + return 0; +} + +/* Return function number. If failure, return negative value. */ +static int match_mux(const struct ltq_mfp_pin *mfp, unsigned mux) +{ + int i; + for (i = 0; i < LTQ_MAX_MUX; i++) { + if (mfp->func[i] == mux) + break; + } + if (i >= LTQ_MAX_MUX) + return -EINVAL; + return i; +} + +/* dont assume .mfp is linearly mapped. find the mfp with the correct .pin */ +static int match_mfp(const struct ltq_pinmux_info *info, int pin) +{ + int i; + for (i = 0; i < info->num_mfp; i++) { + if (info->mfp[i].pin == pin) + return i; + } + return -1; +} + +/* check whether current pin configuration is valid. Negative for failure */ +static int match_group_mux(const struct ltq_pin_group *grp, + const struct ltq_pinmux_info *info, + unsigned mux) +{ + int i, pin, ret = 0; + for (i = 0; i < grp->npins; i++) { + pin = match_mfp(info, grp->pins[i]); + if (pin < 0) { + dev_err(info->dev, "could not find mfp for pin %d\n", + grp->pins[i]); + return -EINVAL; + } + ret = match_mux(&info->mfp[pin], mux); + if (ret < 0) { + dev_err(info->dev, "Can't find mux %d on pin%d\n", + mux, pin); + break; + } + } + return ret; +} + +static int ltq_pmx_enable(struct pinctrl_dev *pctrldev, + unsigned func, + unsigned group) +{ + struct ltq_pinmux_info *info = pinctrl_dev_get_drvdata(pctrldev); + const struct ltq_pin_group *pin_grp = &info->grps[group]; + int i, pin, pin_func, ret; + + if (!pin_grp->npins || + (match_group_mux(pin_grp, info, pin_grp->mux) < 0)) { + dev_err(info->dev, "Failed to set the pin group: %s\n", + info->grps[group].name); + return -EINVAL; + } + for (i = 0; i < pin_grp->npins; i++) { + pin = match_mfp(info, pin_grp->pins[i]); + if (pin < 0) { + dev_err(info->dev, "could not find mfp for pin %d\n", + pin_grp->pins[i]); + return -EINVAL; + } + pin_func = match_mux(&info->mfp[pin], pin_grp->mux); + ret = info->apply_mux(pctrldev, pin, pin_func); + if (ret) { + dev_err(info->dev, + "failed to apply mux %d for pin %d\n", + pin_func, pin); + return ret; + } + } + return 0; +} + +static void ltq_pmx_disable(struct pinctrl_dev *pctrldev, + unsigned func, + unsigned group) +{ + /* + * Nothing to do here. However, pinconf_check_ops() requires this + * callback to be defined. + */ +} + +static int ltq_pmx_gpio_request_enable(struct pinctrl_dev *pctrldev, + struct pinctrl_gpio_range *range, + unsigned pin) +{ + struct ltq_pinmux_info *info = pinctrl_dev_get_drvdata(pctrldev); + int mfp = match_mfp(info, pin + (range->id * 32)); + int pin_func; + + if (mfp < 0) { + dev_err(info->dev, "could not find mfp for pin %d\n", pin); + return -EINVAL; + } + + pin_func = match_mux(&info->mfp[mfp], 0); + if (pin_func < 0) { + dev_err(info->dev, "No GPIO function on pin%d\n", mfp); + return -EINVAL; + } + + return info->apply_mux(pctrldev, mfp, pin_func); +} + +static struct pinmux_ops ltq_pmx_ops = { + .get_functions_count = ltq_pmx_func_count, + .get_function_name = ltq_pmx_func_name, + .get_function_groups = ltq_pmx_get_groups, + .enable = ltq_pmx_enable, + .disable = ltq_pmx_disable, + .gpio_request_enable = ltq_pmx_gpio_request_enable, +}; + +/* + * allow different socs to register with the generic part of the lanti + * pinctrl code + */ +int ltq_pinctrl_register(struct platform_device *pdev, + struct ltq_pinmux_info *info) +{ + struct pinctrl_desc *desc; + + if (!info) + return -EINVAL; + desc = info->desc; + desc->pctlops = <q_pctrl_ops; + desc->pmxops = <q_pmx_ops; + info->dev = &pdev->dev; + + info->pctrl = pinctrl_register(desc, &pdev->dev, info); + if (!info->pctrl) { + dev_err(&pdev->dev, "failed to register LTQ pinmux driver\n"); + return -EINVAL; + } + platform_set_drvdata(pdev, info); + return 0; +} diff --git a/drivers/pinctrl/pinctrl-lantiq.h b/drivers/pinctrl/pinctrl-lantiq.h new file mode 100644 index 00000000000..4419d32a0ad --- /dev/null +++ b/drivers/pinctrl/pinctrl-lantiq.h @@ -0,0 +1,194 @@ +/* + * linux/drivers/pinctrl/pinctrl-lantiq.h + * based on linux/drivers/pinctrl/pinctrl-pxa3xx.h + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * publishhed by the Free Software Foundation. + * + * Copyright (C) 2012 John Crispin <blogic@openwrt.org> + */ + +#ifndef __PINCTRL_LANTIQ_H + +#include <linux/clkdev.h> +#include <linux/pinctrl/pinctrl.h> +#include <linux/pinctrl/pinconf.h> +#include <linux/pinctrl/pinmux.h> +#include <linux/pinctrl/consumer.h> +#include <linux/pinctrl/machine.h> + +#include "core.h" + +#define ARRAY_AND_SIZE(x) (x), ARRAY_SIZE(x) + +#define LTQ_MAX_MUX 4 +#define MFPR_FUNC_MASK 0x3 + +#define LTQ_PINCONF_PACK(param, arg) ((param) << 16 | (arg)) +#define LTQ_PINCONF_UNPACK_PARAM(conf) ((conf) >> 16) +#define LTQ_PINCONF_UNPACK_ARG(conf) ((conf) & 0xffff) + +enum ltq_pinconf_param { + LTQ_PINCONF_PARAM_PULL, + LTQ_PINCONF_PARAM_OPEN_DRAIN, + LTQ_PINCONF_PARAM_DRIVE_CURRENT, + LTQ_PINCONF_PARAM_SLEW_RATE, +}; + +struct ltq_cfg_param { + const char *property; + enum ltq_pinconf_param param; +}; + +struct ltq_mfp_pin { + const char *name; + const unsigned int pin; + const unsigned short func[LTQ_MAX_MUX]; +}; + +struct ltq_pin_group { + const char *name; + const unsigned mux; + const unsigned *pins; + const unsigned npins; +}; + +struct ltq_pmx_func { + const char *name; + const char * const *groups; + const unsigned num_groups; +}; + +struct ltq_pinmux_info { + struct device *dev; + struct pinctrl_dev *pctrl; + + /* we need to manage up to 5 pad controllers */ + void __iomem *membase[5]; + + /* the descriptor for the subsystem */ + struct pinctrl_desc *desc; + + /* we expose our pads to the subsystem */ + struct pinctrl_pin_desc *pads; + + /* the number of pads. this varies between socs */ + unsigned int num_pads; + + /* these are our multifunction pins */ + const struct ltq_mfp_pin *mfp; + unsigned int num_mfp; + + /* a number of multifunction pins can be grouped together */ + const struct ltq_pin_group *grps; + unsigned int num_grps; + + /* a mapping between function string and id */ + const struct ltq_pmx_func *funcs; + unsigned int num_funcs; + + /* the pinconf options that we are able to read from the DT */ + const struct ltq_cfg_param *params; + unsigned int num_params; + + /* the pad controller can have a irq mapping */ + const unsigned *exin; + unsigned int num_exin; + + /* we need 5 clocks max */ + struct clk *clk[5]; + + /* soc specific callback used to apply muxing */ + int (*apply_mux)(struct pinctrl_dev *pctrldev, int pin, int mux); +}; + +enum ltq_pin { + GPIO0 = 0, + GPIO1, + GPIO2, + GPIO3, + GPIO4, + GPIO5, + GPIO6, + GPIO7, + GPIO8, + GPIO9, + GPIO10, /* 10 */ + GPIO11, + GPIO12, + GPIO13, + GPIO14, + GPIO15, + GPIO16, + GPIO17, + GPIO18, + GPIO19, + GPIO20, /* 20 */ + GPIO21, + GPIO22, + GPIO23, + GPIO24, + GPIO25, + GPIO26, + GPIO27, + GPIO28, + GPIO29, + GPIO30, /* 30 */ + GPIO31, + GPIO32, + GPIO33, + GPIO34, + GPIO35, + GPIO36, + GPIO37, + GPIO38, + GPIO39, + GPIO40, /* 40 */ + GPIO41, + GPIO42, + GPIO43, + GPIO44, + GPIO45, + GPIO46, + GPIO47, + GPIO48, + GPIO49, + GPIO50, /* 50 */ + GPIO51, + GPIO52, + GPIO53, + GPIO54, + GPIO55, + + GPIO64, + GPIO65, + GPIO66, + GPIO67, + GPIO68, + GPIO69, + GPIO70, + GPIO71, + GPIO72, + GPIO73, + GPIO74, + GPIO75, + GPIO76, + GPIO77, + GPIO78, + GPIO79, + GPIO80, + GPIO81, + GPIO82, + GPIO83, + GPIO84, + GPIO85, + GPIO86, + GPIO87, + GPIO88, +}; + +extern int ltq_pinctrl_register(struct platform_device *pdev, + struct ltq_pinmux_info *info); +extern int ltq_pinctrl_unregister(struct platform_device *pdev); +#endif /* __PINCTRL_PXA3XX_H */ diff --git a/drivers/pinctrl/pinctrl-xway.c b/drivers/pinctrl/pinctrl-xway.c new file mode 100644 index 00000000000..f8d917d40c9 --- /dev/null +++ b/drivers/pinctrl/pinctrl-xway.c @@ -0,0 +1,781 @@ +/* + * linux/drivers/pinctrl/pinmux-xway.c + * based on linux/drivers/pinctrl/pinmux-pxa910.c + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * publishhed by the Free Software Foundation. + * + * Copyright (C) 2012 John Crispin <blogic@openwrt.org> + */ + +#include <linux/slab.h> +#include <linux/module.h> +#include <linux/of_platform.h> +#include <linux/of_address.h> +#include <linux/of_gpio.h> +#include <linux/ioport.h> +#include <linux/io.h> +#include <linux/device.h> +#include <linux/module.h> +#include <linux/io.h> +#include <linux/platform_device.h> + +#include "pinctrl-lantiq.h" + +#include <lantiq_soc.h> + +/* we have 3 1/2 banks of 16 bit each */ +#define PINS 16 +#define PORT3 3 +#define PORT(x) (x / PINS) +#define PORT_PIN(x) (x % PINS) + +/* we have 2 mux bits that can be set for each pin */ +#define MUX_ALT0 0x1 +#define MUX_ALT1 0x2 + +/* + * each bank has this offset apart from the 1/2 bank that is mixed into the + * other 3 ranges + */ +#define REG_OFF 0x30 + +/* these are the offsets to our registers */ +#define GPIO_BASE(p) (REG_OFF * PORT(p)) +#define GPIO_OUT(p) GPIO_BASE(p) +#define GPIO_IN(p) (GPIO_BASE(p) + 0x04) +#define GPIO_DIR(p) (GPIO_BASE(p) + 0x08) +#define GPIO_ALT0(p) (GPIO_BASE(p) + 0x0C) +#define GPIO_ALT1(p) (GPIO_BASE(p) + 0x10) +#define GPIO_OD(p) (GPIO_BASE(p) + 0x14) +#define GPIO_PUDSEL(p) (GPIO_BASE(p) + 0x1c) +#define GPIO_PUDEN(p) (GPIO_BASE(p) + 0x20) + +/* the 1/2 port needs special offsets for some registers */ +#define GPIO3_OD (GPIO_BASE(0) + 0x24) +#define GPIO3_PUDSEL (GPIO_BASE(0) + 0x28) +#define GPIO3_PUDEN (GPIO_BASE(0) + 0x2C) +#define GPIO3_ALT1 (GPIO_BASE(PINS) + 0x24) + +/* macros to help us access the registers */ +#define gpio_getbit(m, r, p) (!!(ltq_r32(m + r) & BIT(p))) +#define gpio_setbit(m, r, p) ltq_w32_mask(0, BIT(p), m + r) +#define gpio_clearbit(m, r, p) ltq_w32_mask(BIT(p), 0, m + r) + +#define MFP_XWAY(a, f0, f1, f2, f3) \ + { \ + .name = #a, \ + .pin = a, \ + .func = { \ + XWAY_MUX_##f0, \ + XWAY_MUX_##f1, \ + XWAY_MUX_##f2, \ + XWAY_MUX_##f3, \ + }, \ + } + +#define GRP_MUX(a, m, p) \ + { .name = a, .mux = XWAY_MUX_##m, .pins = p, .npins = ARRAY_SIZE(p), } + +#define FUNC_MUX(f, m) \ + { .func = f, .mux = XWAY_MUX_##m, } + +#define XWAY_MAX_PIN 32 +#define XR9_MAX_PIN 56 + +enum xway_mux { + XWAY_MUX_GPIO = 0, + XWAY_MUX_SPI, + XWAY_MUX_ASC, + XWAY_MUX_PCI, + XWAY_MUX_CGU, + XWAY_MUX_EBU, + XWAY_MUX_JTAG, + XWAY_MUX_EXIN, + XWAY_MUX_TDM, + XWAY_MUX_STP, + XWAY_MUX_SIN, + XWAY_MUX_GPT, + XWAY_MUX_NMI, + XWAY_MUX_MDIO, + XWAY_MUX_MII, + XWAY_MUX_EPHY, + XWAY_MUX_DFE, + XWAY_MUX_SDIO, + XWAY_MUX_NONE = 0xffff, +}; + +static const struct ltq_mfp_pin xway_mfp[] = { + /* pin f0 f1 f2 f3 */ + MFP_XWAY(GPIO0, GPIO, EXIN, NONE, TDM), + MFP_XWAY(GPIO1, GPIO, EXIN, NONE, NONE), + MFP_XWAY(GPIO2, GPIO, CGU, EXIN, NONE), + MFP_XWAY(GPIO3, GPIO, CGU, NONE, PCI), + MFP_XWAY(GPIO4, GPIO, STP, NONE, ASC), + MFP_XWAY(GPIO5, GPIO, STP, NONE, NONE), + MFP_XWAY(GPIO6, GPIO, STP, GPT, ASC), + MFP_XWAY(GPIO7, GPIO, CGU, PCI, NONE), + MFP_XWAY(GPIO8, GPIO, CGU, NMI, NONE), + MFP_XWAY(GPIO9, GPIO, ASC, SPI, EXIN), + MFP_XWAY(GPIO10, GPIO, ASC, SPI, NONE), + MFP_XWAY(GPIO11, GPIO, ASC, PCI, SPI), + MFP_XWAY(GPIO12, GPIO, ASC, NONE, NONE), + MFP_XWAY(GPIO13, GPIO, EBU, SPI, NONE), + MFP_XWAY(GPIO14, GPIO, CGU, PCI, NONE), + MFP_XWAY(GPIO15, GPIO, SPI, JTAG, NONE), + MFP_XWAY(GPIO16, GPIO, SPI, NONE, JTAG), + MFP_XWAY(GPIO17, GPIO, SPI, NONE, JTAG), + MFP_XWAY(GPIO18, GPIO, SPI, NONE, JTAG), + MFP_XWAY(GPIO19, GPIO, PCI, NONE, NONE), + MFP_XWAY(GPIO20, GPIO, JTAG, NONE, NONE), + MFP_XWAY(GPIO21, GPIO, PCI, EBU, GPT), + MFP_XWAY(GPIO22, GPIO, SPI, NONE, NONE), + MFP_XWAY(GPIO23, GPIO, EBU, PCI, STP), + MFP_XWAY(GPIO24, GPIO, EBU, TDM, PCI), + MFP_XWAY(GPIO25, GPIO, TDM, NONE, ASC), + MFP_XWAY(GPIO26, GPIO, EBU, NONE, TDM), + MFP_XWAY(GPIO27, GPIO, TDM, NONE, ASC), + MFP_XWAY(GPIO28, GPIO, GPT, NONE, NONE), + MFP_XWAY(GPIO29, GPIO, PCI, NONE, NONE), + MFP_XWAY(GPIO30, GPIO, PCI, NONE, NONE), + MFP_XWAY(GPIO31, GPIO, EBU, PCI, NONE), + MFP_XWAY(GPIO32, GPIO, NONE, NONE, EBU), + MFP_XWAY(GPIO33, GPIO, NONE, NONE, EBU), + MFP_XWAY(GPIO34, GPIO, NONE, NONE, EBU), + MFP_XWAY(GPIO35, GPIO, NONE, NONE, EBU), + MFP_XWAY(GPIO36, GPIO, SIN, NONE, EBU), + MFP_XWAY(GPIO37, GPIO, PCI, NONE, NONE), + MFP_XWAY(GPIO38, GPIO, PCI, NONE, NONE), + MFP_XWAY(GPIO39, GPIO, EXIN, NONE, NONE), + MFP_XWAY(GPIO40, GPIO, NONE, NONE, NONE), + MFP_XWAY(GPIO41, GPIO, NONE, NONE, NONE), + MFP_XWAY(GPIO42, GPIO, MDIO, NONE, NONE), + MFP_XWAY(GPIO43, GPIO, MDIO, NONE, NONE), + MFP_XWAY(GPIO44, GPIO, NONE, NONE, SIN), + MFP_XWAY(GPIO45, GPIO, NONE, NONE, SIN), + MFP_XWAY(GPIO46, GPIO, NONE, NONE, EXIN), + MFP_XWAY(GPIO47, GPIO, NONE, NONE, SIN), + MFP_XWAY(GPIO48, GPIO, EBU, NONE, NONE), + MFP_XWAY(GPIO49, GPIO, EBU, NONE, NONE), + MFP_XWAY(GPIO50, GPIO, NONE, NONE, NONE), + MFP_XWAY(GPIO51, GPIO, NONE, NONE, NONE), + MFP_XWAY(GPIO52, GPIO, NONE, NONE, NONE), + MFP_XWAY(GPIO53, GPIO, NONE, NONE, NONE), + MFP_XWAY(GPIO54, GPIO, NONE, NONE, NONE), + MFP_XWAY(GPIO55, GPIO, NONE, NONE, NONE), +}; + +static const struct ltq_mfp_pin ase_mfp[] = { + /* pin f0 f1 f2 f3 */ + MFP_XWAY(GPIO0, GPIO, EXIN, MII, TDM), + MFP_XWAY(GPIO1, GPIO, STP, DFE, EBU), + MFP_XWAY(GPIO2, GPIO, STP, DFE, EPHY), + MFP_XWAY(GPIO3, GPIO, STP, EPHY, EBU), + MFP_XWAY(GPIO4, GPIO, GPT, EPHY, MII), + MFP_XWAY(GPIO5, GPIO, MII, ASC, GPT), + MFP_XWAY(GPIO6, GPIO, MII, ASC, EXIN), + MFP_XWAY(GPIO7, GPIO, SPI, MII, JTAG), + MFP_XWAY(GPIO8, GPIO, SPI, MII, JTAG), + MFP_XWAY(GPIO9, GPIO, SPI, MII, JTAG), + MFP_XWAY(GPIO10, GPIO, SPI, MII, JTAG), + MFP_XWAY(GPIO11, GPIO, EBU, CGU, JTAG), + MFP_XWAY(GPIO12, GPIO, EBU, MII, SDIO), + MFP_XWAY(GPIO13, GPIO, EBU, MII, CGU), + MFP_XWAY(GPIO14, GPIO, EBU, SPI, CGU), + MFP_XWAY(GPIO15, GPIO, EBU, SPI, SDIO), + MFP_XWAY(GPIO16, GPIO, NONE, NONE, NONE), + MFP_XWAY(GPIO17, GPIO, NONE, NONE, NONE), + MFP_XWAY(GPIO18, GPIO, NONE, NONE, NONE), + MFP_XWAY(GPIO19, GPIO, EBU, MII, SDIO), + MFP_XWAY(GPIO20, GPIO, EBU, MII, SDIO), + MFP_XWAY(GPIO21, GPIO, EBU, MII, SDIO), + MFP_XWAY(GPIO22, GPIO, EBU, MII, CGU), + MFP_XWAY(GPIO23, GPIO, EBU, MII, CGU), + MFP_XWAY(GPIO24, GPIO, EBU, NONE, MII), + MFP_XWAY(GPIO25, GPIO, EBU, MII, GPT), + MFP_XWAY(GPIO26, GPIO, EBU, MII, SDIO), + MFP_XWAY(GPIO27, GPIO, EBU, NONE, MII), + MFP_XWAY(GPIO28, GPIO, MII, EBU, SDIO), + MFP_XWAY(GPIO29, GPIO, EBU, MII, EXIN), + MFP_XWAY(GPIO30, GPIO, NONE, NONE, NONE), + MFP_XWAY(GPIO31, GPIO, NONE, NONE, NONE), +}; + +static const unsigned pins_jtag[] = {GPIO15, GPIO16, GPIO17, GPIO19, GPIO35}; +static const unsigned pins_asc0[] = {GPIO11, GPIO12}; +static const unsigned pins_asc0_cts_rts[] = {GPIO9, GPIO10}; +static const unsigned pins_stp[] = {GPIO4, GPIO5, GPIO6}; +static const unsigned pins_nmi[] = {GPIO8}; +static const unsigned pins_mdio[] = {GPIO42, GPIO43}; + +static const unsigned pins_ebu_a24[] = {GPIO13}; +static const unsigned pins_ebu_clk[] = {GPIO21}; +static const unsigned pins_ebu_cs1[] = {GPIO23}; +static const unsigned pins_ebu_a23[] = {GPIO24}; +static const unsigned pins_ebu_wait[] = {GPIO26}; +static const unsigned pins_ebu_a25[] = {GPIO31}; +static const unsigned pins_ebu_rdy[] = {GPIO48}; +static const unsigned pins_ebu_rd[] = {GPIO49}; + +static const unsigned pins_nand_ale[] = {GPIO13}; +static const unsigned pins_nand_cs1[] = {GPIO23}; +static const unsigned pins_nand_cle[] = {GPIO24}; +static const unsigned pins_nand_rdy[] = {GPIO48}; +static const unsigned pins_nand_rd[] = {GPIO49}; + +static const unsigned pins_exin0[] = {GPIO0}; +static const unsigned pins_exin1[] = {GPIO1}; +static const unsigned pins_exin2[] = {GPIO2}; +static const unsigned pins_exin3[] = {GPIO39}; +static const unsigned pins_exin4[] = {GPIO46}; +static const unsigned pins_exin5[] = {GPIO9}; + +static const unsigned pins_spi[] = {GPIO16, GPIO17, GPIO18}; +static const unsigned pins_spi_cs1[] = {GPIO15}; +static const unsigned pins_spi_cs2[] = {GPIO21}; +static const unsigned pins_spi_cs3[] = {GPIO13}; +static const unsigned pins_spi_cs4[] = {GPIO10}; +static const unsigned pins_spi_cs5[] = {GPIO9}; +static const unsigned pins_spi_cs6[] = {GPIO11}; + +static const unsigned pins_gpt1[] = {GPIO28}; +static const unsigned pins_gpt2[] = {GPIO21}; +static const unsigned pins_gpt3[] = {GPIO6}; + +static const unsigned pins_clkout0[] = {GPIO8}; +static const unsigned pins_clkout1[] = {GPIO7}; +static const unsigned pins_clkout2[] = {GPIO3}; +static const unsigned pins_clkout3[] = {GPIO2}; + +static const unsigned pins_pci_gnt1[] = {GPIO30}; +static const unsigned pins_pci_gnt2[] = {GPIO23}; +static const unsigned pins_pci_gnt3[] = {GPIO19}; +static const unsigned pins_pci_gnt4[] = {GPIO38}; +static const unsigned pins_pci_req1[] = {GPIO29}; +static const unsigned pins_pci_req2[] = {GPIO31}; +static const unsigned pins_pci_req3[] = {GPIO3}; +static const unsigned pins_pci_req4[] = {GPIO37}; + +static const unsigned ase_pins_jtag[] = {GPIO7, GPIO8, GPIO9, GPIO10, GPIO11}; +static const unsigned ase_pins_asc[] = {GPIO5, GPIO6}; +static const unsigned ase_pins_stp[] = {GPIO1, GPIO2, GPIO3}; +static const unsigned ase_pins_ephy[] = {GPIO2, GPIO3, GPIO4}; +static const unsigned ase_pins_dfe[] = {GPIO1, GPIO2}; + +static const unsigned ase_pins_spi[] = {GPIO8, GPIO9, GPIO10}; +static const unsigned ase_pins_spi_cs1[] = {GPIO7}; +static const unsigned ase_pins_spi_cs2[] = {GPIO15}; +static const unsigned ase_pins_spi_cs3[] = {GPIO14}; + +static const unsigned ase_pins_exin0[] = {GPIO6}; +static const unsigned ase_pins_exin1[] = {GPIO29}; +static const unsigned ase_pins_exin2[] = {GPIO0}; + +static const unsigned ase_pins_gpt1[] = {GPIO5}; +static const unsigned ase_pins_gpt2[] = {GPIO4}; +static const unsigned ase_pins_gpt3[] = {GPIO25}; + +static const struct ltq_pin_group xway_grps[] = { + GRP_MUX("exin0", EXIN, pins_exin0), + GRP_MUX("exin1", EXIN, pins_exin1), + GRP_MUX("exin2", EXIN, pins_exin2), + GRP_MUX("jtag", JTAG, pins_jtag), + GRP_MUX("ebu a23", EBU, pins_ebu_a23), + GRP_MUX("ebu a24", EBU, pins_ebu_a24), + GRP_MUX("ebu a25", EBU, pins_ebu_a25), + GRP_MUX("ebu clk", EBU, pins_ebu_clk), + GRP_MUX("ebu cs1", EBU, pins_ebu_cs1), + GRP_MUX("ebu wait", EBU, pins_ebu_wait), + GRP_MUX("nand ale", EBU, pins_nand_ale), + GRP_MUX("nand cs1", EBU, pins_nand_cs1), + GRP_MUX("nand cle", EBU, pins_nand_cle), + GRP_MUX("spi", SPI, pins_spi), + GRP_MUX("spi_cs1", SPI, pins_spi_cs1), + GRP_MUX("spi_cs2", SPI, pins_spi_cs2), + GRP_MUX("spi_cs3", SPI, pins_spi_cs3), + GRP_MUX("spi_cs4", SPI, pins_spi_cs4), + GRP_MUX("spi_cs5", SPI, pins_spi_cs5), + GRP_MUX("spi_cs6", SPI, pins_spi_cs6), + GRP_MUX("asc0", ASC, pins_asc0), + GRP_MUX("asc0 cts rts", ASC, pins_asc0_cts_rts), + GRP_MUX("stp", STP, pins_stp), + GRP_MUX("nmi", NMI, pins_nmi), + GRP_MUX("gpt1", GPT, pins_gpt1), + GRP_MUX("gpt2", GPT, pins_gpt2), + GRP_MUX("gpt3", GPT, pins_gpt3), + GRP_MUX("clkout0", CGU, pins_clkout0), + GRP_MUX("clkout1", CGU, pins_clkout1), + GRP_MUX("clkout2", CGU, pins_clkout2), + GRP_MUX("clkout3", CGU, pins_clkout3), + GRP_MUX("gnt1", PCI, pins_pci_gnt1), + GRP_MUX("gnt2", PCI, pins_pci_gnt2), + GRP_MUX("gnt3", PCI, pins_pci_gnt3), + GRP_MUX("req1", PCI, pins_pci_req1), + GRP_MUX("req2", PCI, pins_pci_req2), + GRP_MUX("req3", PCI, pins_pci_req3), +/* xrx only */ + GRP_MUX("nand rdy", EBU, pins_nand_rdy), + GRP_MUX("nand rd", EBU, pins_nand_rd), + GRP_MUX("exin3", EXIN, pins_exin3), + GRP_MUX("exin4", EXIN, pins_exin4), + GRP_MUX("exin5", EXIN, pins_exin5), + GRP_MUX("gnt4", PCI, pins_pci_gnt4), + GRP_MUX("req4", PCI, pins_pci_gnt4), + GRP_MUX("mdio", MDIO, pins_mdio), +}; + +static const struct ltq_pin_group ase_grps[] = { + GRP_MUX("exin0", EXIN, ase_pins_exin0), + GRP_MUX("exin1", EXIN, ase_pins_exin1), + GRP_MUX("exin2", EXIN, ase_pins_exin2), + GRP_MUX("jtag", JTAG, ase_pins_jtag), + GRP_MUX("stp", STP, ase_pins_stp), + GRP_MUX("asc", ASC, ase_pins_asc), + GRP_MUX("gpt1", GPT, ase_pins_gpt1), + GRP_MUX("gpt2", GPT, ase_pins_gpt2), + GRP_MUX("gpt3", GPT, ase_pins_gpt3), + GRP_MUX("ephy", EPHY, ase_pins_ephy), + GRP_MUX("dfe", DFE, ase_pins_dfe), + GRP_MUX("spi", SPI, ase_pins_spi), + GRP_MUX("spi_cs1", SPI, ase_pins_spi_cs1), + GRP_MUX("spi_cs2", SPI, ase_pins_spi_cs2), + GRP_MUX("spi_cs3", SPI, ase_pins_spi_cs3), +}; + +static const char * const xway_pci_grps[] = {"gnt1", "gnt2", + "gnt3", "req1", + "req2", "req3"}; +static const char * const xway_spi_grps[] = {"spi", "spi_cs1", + "spi_cs2", "spi_cs3", + "spi_cs4", "spi_cs5", + "spi_cs6"}; +static const char * const xway_cgu_grps[] = {"clkout0", "clkout1", + "clkout2", "clkout3"}; +static const char * const xway_ebu_grps[] = {"ebu a23", "ebu a24", + "ebu a25", "ebu cs1", + "ebu wait", "ebu clk", + "nand ale", "nand cs1", + "nand cle"}; +static const char * const xway_exin_grps[] = {"exin0", "exin1", "exin2"}; +static const char * const xway_gpt_grps[] = {"gpt1", "gpt2", "gpt3"}; +static const char * const xway_asc_grps[] = {"asc0", "asc0 cts rts"}; +static const char * const xway_jtag_grps[] = {"jtag"}; +static const char * const xway_stp_grps[] = {"stp"}; +static const char * const xway_nmi_grps[] = {"nmi"}; + +/* ar9/vr9/gr9 */ +static const char * const xrx_mdio_grps[] = {"mdio"}; +static const char * const xrx_ebu_grps[] = {"ebu a23", "ebu a24", + "ebu a25", "ebu cs1", + "ebu wait", "ebu clk", + "nand ale", "nand cs1", + "nand cle", "nand rdy", + "nand rd"}; +static const char * const xrx_exin_grps[] = {"exin0", "exin1", "exin2", + "exin3", "exin4", "exin5"}; +static const char * const xrx_pci_grps[] = {"gnt1", "gnt2", + "gnt3", "gnt4", + "req1", "req2", + "req3", "req4"}; + +/* ase */ +static const char * const ase_exin_grps[] = {"exin0", "exin1", "exin2"}; +static const char * const ase_gpt_grps[] = {"gpt1", "gpt2", "gpt3"}; +static const char * const ase_dfe_grps[] = {"dfe"}; +static const char * const ase_ephy_grps[] = {"ephy"}; +static const char * const ase_asc_grps[] = {"asc"}; +static const char * const ase_jtag_grps[] = {"jtag"}; +static const char * const ase_stp_grps[] = {"stp"}; +static const char * const ase_spi_grps[] = {"spi", "spi_cs1", + "spi_cs2", "spi_cs3"}; + +static const struct ltq_pmx_func danube_funcs[] = { + {"spi", ARRAY_AND_SIZE(xway_spi_grps)}, + {"asc", ARRAY_AND_SIZE(xway_asc_grps)}, + {"cgu", ARRAY_AND_SIZE(xway_cgu_grps)}, + {"jtag", ARRAY_AND_SIZE(xway_jtag_grps)}, + {"exin", ARRAY_AND_SIZE(xway_exin_grps)}, + {"stp", ARRAY_AND_SIZE(xway_stp_grps)}, + {"gpt", ARRAY_AND_SIZE(xway_gpt_grps)}, + {"nmi", ARRAY_AND_SIZE(xway_nmi_grps)}, + {"pci", ARRAY_AND_SIZE(xway_pci_grps)}, + {"ebu", ARRAY_AND_SIZE(xway_ebu_grps)}, +}; + +static const struct ltq_pmx_func xrx_funcs[] = { + {"spi", ARRAY_AND_SIZE(xway_spi_grps)}, + {"asc", ARRAY_AND_SIZE(xway_asc_grps)}, + {"cgu", ARRAY_AND_SIZE(xway_cgu_grps)}, + {"jtag", ARRAY_AND_SIZE(xway_jtag_grps)}, + {"exin", ARRAY_AND_SIZE(xrx_exin_grps)}, + {"stp", ARRAY_AND_SIZE(xway_stp_grps)}, + {"gpt", ARRAY_AND_SIZE(xway_gpt_grps)}, + {"nmi", ARRAY_AND_SIZE(xway_nmi_grps)}, + {"pci", ARRAY_AND_SIZE(xrx_pci_grps)}, + {"ebu", ARRAY_AND_SIZE(xrx_ebu_grps)}, + {"mdio", ARRAY_AND_SIZE(xrx_mdio_grps)}, +}; + +static const struct ltq_pmx_func ase_funcs[] = { + {"spi", ARRAY_AND_SIZE(ase_spi_grps)}, + {"asc", ARRAY_AND_SIZE(ase_asc_grps)}, + {"jtag", ARRAY_AND_SIZE(ase_jtag_grps)}, + {"exin", ARRAY_AND_SIZE(ase_exin_grps)}, + {"stp", ARRAY_AND_SIZE(ase_stp_grps)}, + {"gpt", ARRAY_AND_SIZE(ase_gpt_grps)}, + {"ephy", ARRAY_AND_SIZE(ase_ephy_grps)}, + {"dfe", ARRAY_AND_SIZE(ase_dfe_grps)}, +}; + +/* --------- pinconf related code --------- */ +static int xway_pinconf_get(struct pinctrl_dev *pctldev, + unsigned pin, + unsigned long *config) +{ + struct ltq_pinmux_info *info = pinctrl_dev_get_drvdata(pctldev); + enum ltq_pinconf_param param = LTQ_PINCONF_UNPACK_PARAM(*config); + int port = PORT(pin); + u32 reg; + + switch (param) { + case LTQ_PINCONF_PARAM_OPEN_DRAIN: + if (port == PORT3) + reg = GPIO3_OD; + else + reg = GPIO_OD(port); + *config = LTQ_PINCONF_PACK(param, + !!gpio_getbit(info->membase[0], reg, PORT_PIN(port))); + break; + + case LTQ_PINCONF_PARAM_PULL: + if (port == PORT3) + reg = GPIO3_PUDEN; + else + reg = GPIO_PUDEN(port); + if (!gpio_getbit(info->membase[0], reg, PORT_PIN(port))) { + *config = LTQ_PINCONF_PACK(param, 0); + break; + } + + if (port == PORT3) + reg = GPIO3_PUDSEL; + else + reg = GPIO_PUDSEL(port); + if (!gpio_getbit(info->membase[0], reg, PORT_PIN(port))) + *config = LTQ_PINCONF_PACK(param, 2); + else + *config = LTQ_PINCONF_PACK(param, 1); + break; + + default: + dev_err(pctldev->dev, "Invalid config param %04x\n", param); + return -ENOTSUPP; + } + return 0; +} + +static int xway_pinconf_set(struct pinctrl_dev *pctldev, + unsigned pin, + unsigned long config) +{ + struct ltq_pinmux_info *info = pinctrl_dev_get_drvdata(pctldev); + enum ltq_pinconf_param param = LTQ_PINCONF_UNPACK_PARAM(config); + int arg = LTQ_PINCONF_UNPACK_ARG(config); + int port = PORT(pin); + u32 reg; + + switch (param) { + case LTQ_PINCONF_PARAM_OPEN_DRAIN: + if (port == PORT3) + reg = GPIO3_OD; + else + reg = GPIO_OD(port); + gpio_setbit(info->membase[0], reg, PORT_PIN(port)); + break; + + case LTQ_PINCONF_PARAM_PULL: + if (port == PORT3) + reg = GPIO3_PUDEN; + else + reg = GPIO_PUDEN(port); + if (arg == 0) { + gpio_clearbit(info->membase[0], reg, PORT_PIN(port)); + break; + } + gpio_setbit(info->membase[0], reg, PORT_PIN(port)); + + if (port == PORT3) + reg = GPIO3_PUDSEL; + else + reg = GPIO_PUDSEL(port); + if (arg == 1) + gpio_clearbit(info->membase[0], reg, PORT_PIN(port)); + else if (arg == 2) + gpio_setbit(info->membase[0], reg, PORT_PIN(port)); + else + dev_err(pctldev->dev, "Invalid pull value %d\n", arg); + break; + + default: + dev_err(pctldev->dev, "Invalid config param %04x\n", param); + return -ENOTSUPP; + } + return 0; +} + +struct pinconf_ops xway_pinconf_ops = { + .pin_config_get = xway_pinconf_get, + .pin_config_set = xway_pinconf_set, +}; + +static struct pinctrl_desc xway_pctrl_desc = { + .owner = THIS_MODULE, + .confops = &xway_pinconf_ops, +}; + +static inline int xway_mux_apply(struct pinctrl_dev *pctrldev, + int pin, int mux) +{ + struct ltq_pinmux_info *info = pinctrl_dev_get_drvdata(pctrldev); + int port = PORT(pin); + u32 alt1_reg = GPIO_ALT1(pin); + + if (port == PORT3) + alt1_reg = GPIO3_ALT1; + + if (mux & MUX_ALT0) + gpio_setbit(info->membase[0], GPIO_ALT0(pin), PORT_PIN(pin)); + else + gpio_clearbit(info->membase[0], GPIO_ALT0(pin), PORT_PIN(pin)); + + if (mux & MUX_ALT1) + gpio_setbit(info->membase[0], alt1_reg, PORT_PIN(pin)); + else + gpio_clearbit(info->membase[0], alt1_reg, PORT_PIN(pin)); + + return 0; +} + +static const struct ltq_cfg_param xway_cfg_params[] = { + {"lantiq,pull", LTQ_PINCONF_PARAM_PULL}, + {"lantiq,open-drain", LTQ_PINCONF_PARAM_OPEN_DRAIN}, +}; + +static struct ltq_pinmux_info xway_info = { + .desc = &xway_pctrl_desc, + .apply_mux = xway_mux_apply, + .params = xway_cfg_params, + .num_params = ARRAY_SIZE(xway_cfg_params), +}; + +/* --------- gpio_chip related code --------- */ +static void xway_gpio_set(struct gpio_chip *chip, unsigned int pin, int val) +{ + struct ltq_pinmux_info *info = dev_get_drvdata(chip->dev); + + if (val) + gpio_setbit(info->membase[0], GPIO_OUT(pin), PORT_PIN(pin)); + else + gpio_clearbit(info->membase[0], GPIO_OUT(pin), PORT_PIN(pin)); +} + +static int xway_gpio_get(struct gpio_chip *chip, unsigned int pin) +{ + struct ltq_pinmux_info *info = dev_get_drvdata(chip->dev); + + return gpio_getbit(info->membase[0], GPIO_IN(pin), PORT_PIN(pin)); +} + +static int xway_gpio_dir_in(struct gpio_chip *chip, unsigned int pin) +{ + struct ltq_pinmux_info *info = dev_get_drvdata(chip->dev); + + gpio_clearbit(info->membase[0], GPIO_DIR(pin), PORT_PIN(pin)); + + return 0; +} + +static int xway_gpio_dir_out(struct gpio_chip *chip, unsigned int pin, int val) +{ + struct ltq_pinmux_info *info = dev_get_drvdata(chip->dev); + + gpio_setbit(info->membase[0], GPIO_DIR(pin), PORT_PIN(pin)); + xway_gpio_set(chip, pin, val); + + return 0; +} + +static int xway_gpio_req(struct gpio_chip *chip, unsigned offset) +{ + int gpio = chip->base + offset; + + return pinctrl_request_gpio(gpio); +} + +static void xway_gpio_free(struct gpio_chip *chip, unsigned offset) +{ + int gpio = chip->base + offset; + + pinctrl_free_gpio(gpio); +} + +static struct gpio_chip xway_chip = { + .label = "gpio-xway", + .direction_input = xway_gpio_dir_in, + .direction_output = xway_gpio_dir_out, + .get = xway_gpio_get, + .set = xway_gpio_set, + .request = xway_gpio_req, + .free = xway_gpio_free, + .base = -1, +}; + + +/* --------- register the pinctrl layer --------- */ +static const unsigned xway_exin_pin_map[] = {GPIO0, GPIO1, GPIO2, GPIO39, GPIO46, GPIO9}; +static const unsigned ase_exin_pins_map[] = {GPIO6, GPIO29, GPIO0}; + +static struct pinctrl_xway_soc { + int pin_count; + const struct ltq_mfp_pin *mfp; + const struct ltq_pin_group *grps; + unsigned int num_grps; + const struct ltq_pmx_func *funcs; + unsigned int num_funcs; + const unsigned *exin; + unsigned int num_exin; +} soc_cfg[] = { + /* legacy xway */ + {XWAY_MAX_PIN, xway_mfp, + xway_grps, ARRAY_SIZE(xway_grps), + danube_funcs, ARRAY_SIZE(danube_funcs), + xway_exin_pin_map, 3}, + /* xway xr9 series */ + {XR9_MAX_PIN, xway_mfp, + xway_grps, ARRAY_SIZE(xway_grps), + xrx_funcs, ARRAY_SIZE(xrx_funcs), + xway_exin_pin_map, 6}, + /* xway ase series */ + {XWAY_MAX_PIN, ase_mfp, + ase_grps, ARRAY_SIZE(ase_grps), + ase_funcs, ARRAY_SIZE(ase_funcs), + ase_exin_pins_map, 3}, +}; + +static struct pinctrl_gpio_range xway_gpio_range = { + .name = "XWAY GPIO", + .gc = &xway_chip, +}; + +static const struct of_device_id xway_match[] = { + { .compatible = "lantiq,pinctrl-xway", .data = &soc_cfg[0]}, + { .compatible = "lantiq,pinctrl-xr9", .data = &soc_cfg[1]}, + { .compatible = "lantiq,pinctrl-ase", .data = &soc_cfg[2]}, + {}, +}; +MODULE_DEVICE_TABLE(of, xway_match); + +static int __devinit pinmux_xway_probe(struct platform_device *pdev) +{ + const struct of_device_id *match; + const struct pinctrl_xway_soc *xway_soc; + struct resource *res; + int ret, i; + + /* get and remap our register range */ + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + if (!res) { + dev_err(&pdev->dev, "Failed to get resource\n"); + return -ENOENT; + } + xway_info.membase[0] = devm_request_and_ioremap(&pdev->dev, res); + if (!xway_info.membase[0]) { + dev_err(&pdev->dev, "Failed to remap resource\n"); + return -ENOMEM; + } + + match = of_match_device(xway_match, &pdev->dev); + if (match) + xway_soc = (const struct pinctrl_xway_soc *) match->data; + else + xway_soc = &soc_cfg[0]; + + /* find out how many pads we have */ + xway_chip.ngpio = xway_soc->pin_count; + + /* load our pad descriptors */ + xway_info.pads = devm_kzalloc(&pdev->dev, + sizeof(struct pinctrl_pin_desc) * xway_chip.ngpio, + GFP_KERNEL); + if (!xway_info.pads) { + dev_err(&pdev->dev, "Failed to allocate pads\n"); + return -ENOMEM; + } + for (i = 0; i < xway_chip.ngpio; i++) { + /* strlen("ioXY") + 1 = 5 */ + char *name = devm_kzalloc(&pdev->dev, 5, GFP_KERNEL); + + if (!name) { + dev_err(&pdev->dev, "Failed to allocate pad name\n"); + return -ENOMEM; + } + snprintf(name, 5, "io%d", i); + xway_info.pads[i].number = GPIO0 + i; + xway_info.pads[i].name = name; + } + xway_pctrl_desc.pins = xway_info.pads; + + /* load the gpio chip */ + xway_chip.dev = &pdev->dev; + of_gpiochip_add(&xway_chip); + ret = gpiochip_add(&xway_chip); + if (ret) { + dev_err(&pdev->dev, "Failed to register gpio chip\n"); + return ret; + } + + /* setup the data needed by pinctrl */ + xway_pctrl_desc.name = dev_name(&pdev->dev); + xway_pctrl_desc.npins = xway_chip.ngpio; + + xway_info.num_pads = xway_chip.ngpio; + xway_info.num_mfp = xway_chip.ngpio; + xway_info.mfp = xway_soc->mfp; + xway_info.grps = xway_soc->grps; + xway_info.num_grps = xway_soc->num_grps; + xway_info.funcs = xway_soc->funcs; + xway_info.num_funcs = xway_soc->num_funcs; + xway_info.exin = xway_soc->exin; + xway_info.num_exin = xway_soc->num_exin; + + /* register with the generic lantiq layer */ + ret = ltq_pinctrl_register(pdev, &xway_info); + if (ret) { + dev_err(&pdev->dev, "Failed to register pinctrl driver\n"); + return ret; + } + + /* finish with registering the gpio range in pinctrl */ + xway_gpio_range.npins = xway_chip.ngpio; + xway_gpio_range.base = xway_chip.base; + pinctrl_add_gpio_range(xway_info.pctrl, &xway_gpio_range); + dev_info(&pdev->dev, "Init done\n"); + return 0; +} + +static struct platform_driver pinmux_xway_driver = { + .probe = pinmux_xway_probe, + .driver = { + .name = "pinctrl-xway", + .owner = THIS_MODULE, + .of_match_table = xway_match, + }, +}; + +static int __init pinmux_xway_init(void) +{ + return platform_driver_register(&pinmux_xway_driver); +} + +core_initcall_sync(pinmux_xway_init); |