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Add support for Allwinner A31/A31S R-GPIO (CPUs-PORT) controller.

Browse Source 
Submitted by:		Emmanuel Vadot <manu@bidouilliste.com>
Reviewed by:		jmcneill
Differential Revision:	https://reviews.freebsd.org/D5930
This commit is contained in:
Jared McNeill 2016-04-23 13:59:18 +00:00
parent 49817d14f1
commit 013cb2e961
3 changed files with 133 additions and 58 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

124
sys/arm/allwinner/a10_gpio.c
View File

@ -54,49 +54,26 @@ __FBSDID("$FreeBSD$");
#include <arm/allwinner/allwinner_machdep.h>
#include <arm/allwinner/allwinner_pinctrl.h>
#include <dev/extres/clk/clk.h>
#include <dev/extres/hwreset/hwreset.h>
#include "gpio_if.h"
/*
* A10 have 9 banks of gpio.
* 32 pins per bank:
* PA0 - PA17 | PB0 - PB23 | PC0 - PC24
* PD0 - PD27 | PE0 - PE31 | PF0 - PF5
* PG0 - PG9 | PH0 - PH27 | PI0 - PI12
*/
#define A10_GPIO_DEFAULT_CAPS (GPIO_PIN_INPUT | GPIO_PIN_OUTPUT | \
GPIO_PIN_PULLUP | GPIO_PIN_PULLDOWN)
#define A10_GPIO_NONE 0
#define A10_GPIO_PULLUP 1
#define A10_GPIO_PULLDOWN 2
#define A10_GPIO_NONE 0
#define A10_GPIO_PULLUP 1
#define A10_GPIO_PULLDOWN 2
#define A10_GPIO_INPUT 0
#define A10_GPIO_OUTPUT 1
#define A10_GPIO_INPUT 0
#define A10_GPIO_OUTPUT 1
#define AW_GPIO_DRV_MASK 0x3
#define AW_GPIO_PUD_MASK 0x3
#define AW_GPIO_DRV_MASK 0x3
#define AW_GPIO_PUD_MASK 0x3
static struct ofw_compat_data compat_data[] = {
{"allwinner,sun4i-a10-pinctrl", 1},
{"allwinner,sun7i-a20-pinctrl", 1},
{"allwinner,sun6i-a31-pinctrl", 1},
{"allwinner,sun6i-a31s-pinctrl", 1},
{NULL, 0}
};
struct a10_gpio_softc {
device_t sc_dev;
device_t sc_busdev;
struct mtx sc_mtx;
struct resource * sc_mem_res;
struct resource * sc_irq_res;
bus_space_tag_t sc_bst;
bus_space_handle_t sc_bsh;
void * sc_intrhand;
const struct allwinner_padconf * padconf;
};
#define AW_PINCTRL 1
#define AW_R_PINCTRL 2
/* Defined in a10_padconf.c */
#ifdef SOC_ALLWINNER_A10
@ -118,6 +95,41 @@ extern const struct allwinner_padconf a31_padconf;
extern const struct allwinner_padconf a31s_padconf;
#endif
#if defined(SOC_ALLWINNER_A31) || defined(SOC_ALLWINNER_A31S)
extern const struct allwinner_padconf a31_r_padconf;
#endif
static struct ofw_compat_data compat_data[] = {
#ifdef SOC_ALLWINNER_A10
{"allwinner,sun4i-a10-pinctrl", (uintptr_t)&a10_padconf},
#endif
#ifdef SOC_ALLWINNER_A20
{"allwinner,sun7i-a20-pinctrl", (uintptr_t)&a20_padconf},
#endif
#ifdef SOC_ALLWINNER_A31
{"allwinner,sun6i-a31-pinctrl", (uintptr_t)&a31_padconf},
#endif
#ifdef SOC_ALLWINNER_A31S
{"allwinner,sun6i-a31s-pinctrl", (uintptr_t)&a31s_padconf},
#endif
#if defined(SOC_ALLWINNER_A31) || defined(SOC_ALLWINNER_A31S)
{"allwinner,sun6i-a31-r-pinctrl", (uintptr_t)&a31_r_padconf},
#endif
{NULL, 0}
};
struct a10_gpio_softc {
device_t sc_dev;
device_t sc_busdev;
struct mtx sc_mtx;
struct resource * sc_mem_res;
struct resource * sc_irq_res;
bus_space_tag_t sc_bst;
bus_space_handle_t sc_bsh;
void * sc_intrhand;
const struct allwinner_padconf * padconf;
};
#define A10_GPIO_LOCK(_sc) mtx_lock_spin(&(_sc)->sc_mtx)
#define A10_GPIO_UNLOCK(_sc) mtx_unlock_spin(&(_sc)->sc_mtx)
#define A10_GPIO_LOCK_ASSERT(_sc) mtx_assert(&(_sc)->sc_mtx, MA_OWNED)
@ -526,9 +538,11 @@ a10_gpio_probe(device_t dev)
static int
a10_gpio_attach(device_t dev)
{
int rid;
int rid, error;
phandle_t gpio;
struct a10_gpio_softc *sc;
clk_t clk;
hwreset_t rst;
sc = device_get_softc(dev);
sc->sc_dev = dev;
@ -561,29 +575,23 @@ a10_gpio_attach(device_t dev)
goto fail;
/* Use the right pin data for the current SoC */
switch (allwinner_soc_type()) {
#ifdef SOC_ALLWINNER_A10
case ALLWINNERSOC_A10:
sc->padconf = &a10_padconf;
break;
#endif
#ifdef SOC_ALLWINNER_A20
case ALLWINNERSOC_A20:
sc->padconf = &a20_padconf;
break;
#endif
#ifdef SOC_ALLWINNER_A31
case ALLWINNERSOC_A31:
sc->padconf = &a31_padconf;
break;
#endif
#ifdef SOC_ALLWINNER_A31S
case ALLWINNERSOC_A31S:
sc->padconf = &a31s_padconf;
break;
#endif
default:
return (ENOENT);
sc->padconf = (struct allwinner_padconf *)ofw_bus_search_compatible(dev,
compat_data)->ocd_data;
if (hwreset_get_by_ofw_idx(dev, 0, &rst) == 0) {
error = hwreset_deassert(rst);
if (error != 0) {
device_printf(dev, "cannot de-assert reset\n");
return (error);
}
}
if (clk_get_by_ofw_index(dev, 0, &clk) == 0) {
error = clk_enable(clk);
if (error != 0) {
device_printf(dev, "could not enable clock\n");
return (error);
}
}
sc->sc_busdev = gpiobus_attach_bus(dev);

66
sys/arm/allwinner/a31/a31_r_padconf.c Normal file
View File

@ -0,0 +1,66 @@
/*-
* Copyright (c) 2016 Emmanuel Vadot <manu@bidouilliste.com>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/types.h>
#include <arm/allwinner/allwinner_pinctrl.h>
#if defined(SOC_ALLWINNER_A31) || defined(SOC_ALLWINNER_A31S)
const static struct allwinner_pins a31_r_pins[] = {
{"PL0", 0, 0, {"gpio_in", "gpio_out", "s_twi", "s_p2wi", NULL, NULL, NULL, NULL}},
{"PL1", 0, 1, {"gpio_in", "gpio_out", "s_twi", "s_p2wi", NULL, NULL, NULL, NULL}},
{"PL2", 0, 2, {"gpio_in", "gpio_out", "s_uart", NULL, NULL, NULL, NULL, NULL}},
{"PL3", 0, 3, {"gpio_in", "gpio_out", "s_uart", NULL, NULL, NULL, NULL, NULL}},
{"PL4", 0, 4, {"gpio_in", "gpio_out", "s_ir", NULL, NULL, NULL, NULL, NULL}},
{"PL5", 0, 5, {"gpio_in", "gpio_out", "pl_eint0", "s_jtag", NULL, NULL, NULL, NULL}},
{"PL6", 0, 6, {"gpio_in", "gpio_out", "pl_eint1", "s_jtag", NULL, NULL, NULL, NULL}},
{"PL7", 0, 7, {"gpio_in", "gpio_out", "pl_eint2", "s_jtag", NULL, NULL, NULL, NULL}},
{"PL8", 0, 8, {"gpio_in", "gpio_out", "pl_eint3", "s_jtag", NULL, NULL, NULL, NULL}},
{"PM0", 1, 0, {"gpio_in", "gpio_out", "pm_eint0", NULL, NULL, NULL, NULL, NULL}},
{"PM1", 1, 1, {"gpio_in", "gpio_out", "pm_eint1", NULL, NULL, NULL, NULL, NULL}},
{"PM2", 1, 2, {"gpio_in", "gpio_out", "pm_eint2", "1wire", NULL, NULL, NULL, NULL}},
{"PM3", 1, 3, {"gpio_in", "gpio_out", "pm_eint3", NULL, NULL, NULL, NULL, NULL}},
{"PM4", 1, 4, {"gpio_in", "gpio_out", "pm_eint4", NULL, NULL, NULL, NULL, NULL}},
{"PM5", 1, 5, {"gpio_in", "gpio_out", "pm_eint5", NULL, NULL, NULL, NULL, NULL}},
{"PM6", 1, 6, {"gpio_in", "gpio_out", "pm_eint6", NULL, NULL, NULL, NULL, NULL}},
{"PM7", 1, 7, {"gpio_in", "gpio_out", "pm_eint7", "rtc", NULL, NULL, NULL, NULL}},
};
const struct allwinner_padconf a31_r_padconf = {
.npins = nitems(a31_r_pins),
.pins = a31_r_pins,
};
#endif

1
sys/arm/allwinner/a31/files.a31
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@ -1,4 +1,5 @@
# $FreeBSD$
arm/allwinner/a31/a31_padconf.c standard
arm/allwinner/a31/a31_r_padconf.c standard
arm/allwinner/a31/a31s_padconf.c standard