* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
+ #include <dm.h>
+#include <mmc.h>
#include <spl.h>
#include <asm/io.h>
#include <asm/arch/sys_proto.h>
#include <asm/arch/mem.h>
#include <asm/cache.h>
#include <asm/armv7.h>
- #include <asm/arch/gpio.h>
+ #include <asm/gpio.h>
#include <asm/omap_common.h>
#include <asm/arch/mmc_host_def.h>
#include <i2c.h>
static void omap3_invalidate_l2_cache_secure(void);
#endif
+ #ifdef CONFIG_DM_GPIO
+ static const struct omap_gpio_platdata omap34xx_gpio[] = {
+ { 0, OMAP34XX_GPIO1_BASE, METHOD_GPIO_24XX },
+ { 1, OMAP34XX_GPIO2_BASE, METHOD_GPIO_24XX },
+ { 2, OMAP34XX_GPIO3_BASE, METHOD_GPIO_24XX },
+ { 3, OMAP34XX_GPIO4_BASE, METHOD_GPIO_24XX },
+ { 4, OMAP34XX_GPIO5_BASE, METHOD_GPIO_24XX },
+ { 5, OMAP34XX_GPIO6_BASE, METHOD_GPIO_24XX },
+ };
+
+ U_BOOT_DEVICES(am33xx_gpios) = {
+ { "gpio_omap", &omap34xx_gpio[0] },
+ { "gpio_omap", &omap34xx_gpio[1] },
+ { "gpio_omap", &omap34xx_gpio[2] },
+ { "gpio_omap", &omap34xx_gpio[3] },
+ { "gpio_omap", &omap34xx_gpio[4] },
+ { "gpio_omap", &omap34xx_gpio[5] },
+ };
+
+ #else
+
static const struct gpio_bank gpio_bank_34xx[6] = {
{ (void *)OMAP34XX_GPIO1_BASE, METHOD_GPIO_24XX },
{ (void *)OMAP34XX_GPIO2_BASE, METHOD_GPIO_24XX },
const struct gpio_bank *const omap_gpio_bank = gpio_bank_34xx;
+ #endif
+
#ifdef CONFIG_SPL_BUILD
/*
* We use static variables because global data is not ready yet.
* Routine: wait_for_command_complete
* Description: Wait for posting to finish on watchdog
*****************************************************************************/
-void wait_for_command_complete(struct watchdog *wd_base)
+static void wait_for_command_complete(struct watchdog *wd_base)
{
int pending = 1;
do {
#include <dm.h>
#include <asm/gpio.h>
-int __weak name_to_gpio(const char *name)
+__weak int name_to_gpio(const char *name)
{
return simple_strtoul(name, NULL, 10);
}
};
#if defined(CONFIG_DM_GPIO) && !defined(gpio_status)
- static const char * const gpio_function[GPIOF_COUNT] = {
- "input",
- "output",
- "unused",
- "unknown",
- "func",
- };
/* A few flags used by show_gpio() */
enum {
FLAG_SHOW_NEWLINE = 1 << 2,
};
- static void show_gpio(struct udevice *dev, const char *bank_name, int offset,
- int *flagsp)
+ static void gpio_get_description(struct udevice *dev, const char *bank_name,
+ int offset, int *flagsp)
{
- struct dm_gpio_ops *ops = gpio_get_ops(dev);
- int func = GPIOF_UNKNOWN;
char buf[80];
int ret;
- BUILD_BUG_ON(GPIOF_COUNT != ARRAY_SIZE(gpio_function));
-
- if (ops->get_function) {
- ret = ops->get_function(dev, offset);
- if (ret >= 0 && ret < ARRAY_SIZE(gpio_function))
- func = ret;
- }
- if (!(*flagsp & FLAG_SHOW_ALL) && func == GPIOF_UNUSED)
+ ret = gpio_get_function(dev, offset, NULL);
+ if (ret < 0)
+ goto err;
+ if (!(*flagsp & FLAG_SHOW_ALL) && ret == GPIOF_UNUSED)
return;
if ((*flagsp & FLAG_SHOW_BANK) && bank_name) {
if (*flagsp & FLAG_SHOW_NEWLINE) {
printf("Bank %s:\n", bank_name);
*flagsp &= ~FLAG_SHOW_BANK;
}
- *buf = '\0';
- if (ops->get_state) {
- ret = ops->get_state(dev, offset, buf, sizeof(buf));
- if (ret) {
- puts("<unknown>");
- return;
- }
- } else {
- sprintf(buf, "%s%u: %8s %d", bank_name, offset,
- gpio_function[func], ops->get_value(dev, offset));
- }
- puts(buf);
- puts("\n");
+ ret = gpio_get_status(dev, offset, buf, sizeof(buf));
+ if (ret)
+ goto err;
+
+ printf("%s\n", buf);
+ return;
+ err:
+ printf("Error %d\n", ret);
}
static int do_gpio_status(bool all, const char *gpio_name)
if (all)
flags |= FLAG_SHOW_ALL;
bank_name = gpio_get_bank_info(dev, &num_bits);
- if (!num_bits)
+ if (!num_bits) {
+ debug("GPIO device %s has no bits\n", dev->name);
continue;
+ }
banklen = bank_name ? strlen(bank_name) : 0;
if (!gpio_name || !bank_name ||
p = gpio_name + banklen;
if (gpio_name && *p) {
offset = simple_strtoul(p, NULL, 10);
- show_gpio(dev, bank_name, offset, &flags);
+ gpio_get_description(dev, bank_name, offset,
+ &flags);
} else {
for (offset = 0; offset < num_bits; offset++) {
- show_gpio(dev, bank_name, offset,
- &flags);
+ gpio_get_description(dev, bank_name,
+ offset, &flags);
}
}
}
serial_initfunc(arm_dcc_initialize);
serial_initfunc(mxs_auart_initialize);
serial_initfunc(arc_serial_initialize);
- serial_initfunc(uniphier_serial_initialize);
/**
* serial_register() - Register serial driver with serial driver core
arm_dcc_initialize();
mxs_auart_initialize();
arc_serial_initialize();
- uniphier_serial_initialize();
serial_assign(default_serial_console()->name);
}
-int serial_stub_start(struct stdio_dev *sdev)
+static int serial_stub_start(struct stdio_dev *sdev)
{
struct serial_device *dev = sdev->priv;
return dev->start();
}
-int serial_stub_stop(struct stdio_dev *sdev)
+static int serial_stub_stop(struct stdio_dev *sdev)
{
struct serial_device *dev = sdev->priv;
return dev->stop();
}
-void serial_stub_putc(struct stdio_dev *sdev, const char ch)
+static void serial_stub_putc(struct stdio_dev *sdev, const char ch)
{
struct serial_device *dev = sdev->priv;
dev->putc(ch);
}
-void serial_stub_puts(struct stdio_dev *sdev, const char *str)
+static void serial_stub_puts(struct stdio_dev *sdev, const char *str)
{
struct serial_device *dev = sdev->priv;
* Request a GPIO. This should be called before any of the other functions
* are used on this GPIO.
*
+ * Note: With driver model, the label is allocated so there is no need for
+ * the caller to preserve it.
+ *
* @param gp GPIO number
* @param label User label for this GPIO
* @return 0 if ok, -1 on error
int gpio_set_value(unsigned gpio, int value);
/* State of a GPIO, as reported by get_function() */
- enum {
+ enum gpio_func_t {
GPIOF_INPUT = 0,
GPIOF_OUTPUT,
GPIOF_UNUSED, /* Not claimed */
struct udevice;
+ /**
+ * gpio_get_status() - get the current GPIO status as a string
+ *
+ * Obtain the current GPIO status as a string which can be presented to the
+ * user. A typical string is:
+ *
+ * "b4: in: 1 [x] sdmmc_cd"
+ *
+ * which means this is GPIO bank b, offset 4, currently set to input, current
+ * value 1, [x] means that it is requested and the owner is 'sdmmc_cd'
+ *
+ * @dev: Device to check
+ * @offset: Offset of device GPIO to check
+ * @buf: Place to put string
+ * @buffsize: Size of string including \0
+ */
+ int gpio_get_status(struct udevice *dev, int offset, char *buf, int buffsize);
+
+ /**
+ * gpio_get_function() - get the current function for a GPIO pin
+ *
+ * Note this returns GPIOF_UNUSED if the GPIO is not requested.
+ *
+ * @dev: Device to check
+ * @offset: Offset of device GPIO to check
+ * @namep: If non-NULL, this is set to the nane given when the GPIO
+ * was requested, or -1 if it has not been requested
+ * @return -ENODATA if the driver returned an unknown function,
+ * -ENODEV if the device is not active, -EINVAL if the offset is invalid.
+ * GPIOF_UNUSED if the GPIO has not been requested. Otherwise returns the
+ * function from enum gpio_func_t.
+ */
+ int gpio_get_function(struct udevice *dev, int offset, const char **namep);
+
+ /**
+ * gpio_get_raw_function() - get the current raw function for a GPIO pin
+ *
+ * Note this does not return GPIOF_UNUSED - it will always return the GPIO
+ * driver's view of a pin function, even if it is not correctly set up.
+ *
+ * @dev: Device to check
+ * @offset: Offset of device GPIO to check
+ * @namep: If non-NULL, this is set to the nane given when the GPIO
+ * was requested, or -1 if it has not been requested
+ * @return -ENODATA if the driver returned an unknown function,
+ * -ENODEV if the device is not active, -EINVAL if the offset is invalid.
+ * Otherwise returns the function from enum gpio_func_t.
+ */
+ int gpio_get_raw_function(struct udevice *dev, int offset, const char **namep);
+
+ /**
+ * gpio_requestf() - request a GPIO using a format string for the owner
+ *
+ * This is a helper function for gpio_request(). It allows you to provide
+ * a printf()-format string for the GPIO owner. It calls gpio_request() with
+ * the string that is created
+ */
+ int gpio_requestf(unsigned gpio, const char *fmt, ...)
+ __attribute__ ((format (__printf__, 2, 3)));
+
/**
* struct struct dm_gpio_ops - Driver model GPIO operations
*
* @return current function - GPIOF_...
*/
int (*get_function)(struct udevice *dev, unsigned offset);
- int (*get_state)(struct udevice *dev, unsigned offset, char *state,
- int maxlen);
};
/**
* @gpio_base: Base GPIO number for this device. For the first active device
* this will be 0; the numbering for others will follow sequentially so that
* @gpio_base for device 1 will equal the number of GPIOs in device 0.
+ * @name: Array of pointers to the name for each GPIO in this bank. The
+ * value of the pointer will be NULL if the GPIO has not been claimed.
*/
struct gpio_dev_priv {
const char *bank_name;
unsigned gpio_count;
unsigned gpio_base;
+ char **name;
};
/* Access the GPIO operations for a device */
int gpio_lookup_name(const char *name, struct udevice **devp,
unsigned int *offsetp, unsigned int *gpiop);
+int name_to_gpio(const char *name);
+
#endif /* _ASM_GENERIC_GPIO_H_ */
projects / karo-tx-uboot.git / commitdiff