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Diffstat (limited to 'src/cpu/samsung/exynos5250/gpio.c')
-rw-r--r--src/cpu/samsung/exynos5250/gpio.c156
1 files changed, 21 insertions, 135 deletions
diff --git a/src/cpu/samsung/exynos5250/gpio.c b/src/cpu/samsung/exynos5250/gpio.c
index 853fa6fe71..223f6a1eef 100644
--- a/src/cpu/samsung/exynos5250/gpio.c
+++ b/src/cpu/samsung/exynos5250/gpio.c
@@ -1,11 +1,11 @@
/*
- * (C) Copyright 2009 Samsung Electronics
- * Minkyu Kang <mk7.kang@samsung.com>
+ * This file is part of the coreboot project.
*
- * 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.
+ * Copyright (C) 2009 Samsung Electronics
+ *
+ * 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; version 2 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ -14,18 +14,15 @@
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
- * MA 02111-1307 USA
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
-/* FIXME(dhendrix): fix this up so it doesn't require a bunch of #ifdefs... */
-#include <common.h>
-#include <gpio.h>
-//#include <arch/io.h>
-#include <gpio.h>
-#include <arch/gpio.h>
#include <console/console.h>
-#include <cpu/samsung/exynos5250/gpio.h> /* FIXME: for gpio_decode_number prototype */
+#include <string.h>
+#include <delay.h>
+#include <assert.h>
+#include "gpio.h"
+#include "cpu.h"
#define CON_MASK(x) (0xf << ((x) << 2))
#define CON_SFR(x, v) ((v) << ((x) << 2))
@@ -46,7 +43,6 @@ struct gpio_info {
unsigned int max_gpio; /* Maximum GPIO in this part */
};
-#include <cpu/samsung/exynos5250/cpu.h>
static const struct gpio_info gpio_data[EXYNOS_GPIO_NUM_PARTS] = {
{ EXYNOS5_GPIO_PART1_BASE, GPIO_MAX_PORT_PART_1 },
{ EXYNOS5_GPIO_PART2_BASE, GPIO_MAX_PORT_PART_2 },
@@ -56,12 +52,9 @@ static const struct gpio_info gpio_data[EXYNOS_GPIO_NUM_PARTS] = {
{ EXYNOS5_GPIO_PART6_BASE, GPIO_MAX_PORT },
};
-#define HAVE_GENERIC_GPIO
-
/* This macro gets gpio pin offset from 0..7 */
#define GPIO_BIT(x) ((x) & 0x7)
-//#ifdef HAVE_GENERIC_GPIO
static struct s5p_gpio_bank *gpio_get_bank(unsigned int gpio)
{
const struct gpio_info *data;
@@ -79,10 +72,9 @@ static struct s5p_gpio_bank *gpio_get_bank(unsigned int gpio)
}
}
- assert(gpio < GPIO_MAX_PORT); /* ...which it will not be */
+ ASSERT(gpio < GPIO_MAX_PORT); /* ...which it will not be */
return NULL;
}
-//#endif
/* TODO: Deprecation this interface in favour of asm-generic/gpio.h */
void s5p_gpio_cfg_pin(struct s5p_gpio_bank *bank, int gpio, int cfg)
@@ -192,10 +184,6 @@ void s5p_gpio_set_rate(struct s5p_gpio_bank *bank, int gpio, int mode)
}
/* Common GPIO API - only available on Exynos5 */
-/* FIXME(dhendrix): If this stuff is really only applicable to exynos5,
- move it to a more sensible location. */
-#ifdef HAVE_GENERIC_GPIO
-
void gpio_cfg_pin(int gpio, int cfg)
{
unsigned int value;
@@ -277,16 +265,6 @@ void gpio_set_rate(int gpio, int mode)
writel(value, &bank->drv);
}
-int gpio_request(unsigned gpio, const char *label)
-{
- return 0;
-}
-
-int gpio_free(unsigned gpio)
-{
- return 0;
-}
-
int gpio_direction_input(unsigned gpio)
{
gpio_cfg_pin(gpio, EXYNOS_GPIO_INPUT);
@@ -332,64 +310,6 @@ int gpio_set_value(unsigned gpio, int value)
return 0;
}
-#else
-
-static int s5p_gpio_get_pin(unsigned gpio)
-{
- return gpio % GPIO_PER_BANK;
-}
-
-/*
- * If we have the old-style GPIO numbering setup, use these functions
- * which don't necessary provide sequentially increasing GPIO numbers.
- */
-static struct s5p_gpio_bank *s5p_gpio_get_bank(unsigned gpio)
-{
- int bank = gpio / GPIO_PER_BANK;
- bank *= sizeof(struct s5p_gpio_bank);
-
- return (struct s5p_gpio_bank *) (s5p_gpio_base(gpio) + bank);
-}
-
-int gpio_request(unsigned gpio, const char *label)
-{
- return 0;
-}
-
-int gpio_free(unsigned gpio)
-{
- return 0;
-}
-
-int gpio_direction_input(unsigned gpio)
-{
- s5p_gpio_direction_input(s5p_gpio_get_bank(gpio),
- s5p_gpio_get_pin(gpio));
- return 0;
-}
-
-int gpio_direction_output(unsigned gpio, int value)
-{
- s5p_gpio_direction_output(s5p_gpio_get_bank(gpio),
- s5p_gpio_get_pin(gpio), value);
- return 0;
-}
-
-int gpio_get_value(unsigned gpio)
-{
- return (int) s5p_gpio_get_value(s5p_gpio_get_bank(gpio),
- s5p_gpio_get_pin(gpio));
-}
-
-int gpio_set_value(unsigned gpio, int value)
-{
- s5p_gpio_set_value(s5p_gpio_get_bank(gpio),
- s5p_gpio_get_pin(gpio), value);
-
- return 0;
-}
-
-#endif /* HAVE_GENERIC_GPIO */
/*
* Add a delay here to give the lines time to settle
@@ -439,49 +359,8 @@ int gpio_read_mvl3(unsigned gpio)
return value;
}
-
-int gpio_decode_number(unsigned gpio_list[], int count)
-{
- int result = 0;
- int multiplier = 1;
- int gpio, i, value;
- enum mvl3 mvl3;
-
- for (i = 0; i < count; i++) {
- gpio = gpio_list[i];
-
- mvl3 = gpio_read_mvl3(gpio);
- if (mvl3 == LOGIC_1)
- value = 2;
- else if (mvl3 == LOGIC_0)
- value = 1;
- else if (mvl3 == LOGIC_Z)
- value = 0;
- else
- return -1;
-
- result += value * multiplier;
- multiplier *= 3;
- }
-
- return result;
-}
#endif /* __BOOT_BLOCK__ */
-static const char *get_cfg_name(int cfg)
-{
- static char name[8];
-
- if (cfg == EXYNOS_GPIO_INPUT)
- return "input";
- else if (cfg == EXYNOS_GPIO_OUTPUT)
- return "output";
- printk(BIOS_INFO, "func %d", cfg);
-// sprintf(name, "func %d", cfg);
-
- return name;
-}
-
/*
* Display Exynos GPIO information
*/
@@ -492,7 +371,14 @@ void gpio_info(void)
for (gpio = 0; gpio < GPIO_MAX_PORT; gpio++) {
int cfg = gpio_get_cfg(gpio);
- printk(BIOS_INFO, "GPIO_%-3d: %s", gpio, get_cfg_name(cfg));
+ printk(BIOS_INFO, "GPIO_%-3d: ", gpio);
+ if (cfg == EXYNOS_GPIO_INPUT)
+ printk(BIOS_INFO, "input");
+ else if (cfg == EXYNOS_GPIO_OUTPUT)
+ printk(BIOS_INFO, "output");
+ else
+ printk(BIOS_INFO, "func %d", cfg);
+
if (cfg == EXYNOS_GPIO_INPUT || cfg == EXYNOS_GPIO_OUTPUT)
printk(BIOS_INFO, ", value = %d", gpio_get_value(gpio));
printk(BIOS_INFO, "\n");
generated by cgit v1.2.3 (git 2.39.1) at 2024-07-09 05:58:35 +0000