Hi,
On 04/21/2014 04:25 PM, Akshay Saraswat wrote:
This patch includes following changes :
* Adds gpio pin numbering support for EXYNOS SOCs.
To have consistent 0..n-1 GPIO numbering the banks are divided
into different parts where ever they have holes in them.
* Rename GPIO definitions from GPIO_... to S5P_GPIO_...
These changes were done to enable cmd_gpio for EXYNOS and
cmd_gpio has GPIO_INPUT same as s5p_gpio driver and hence
getting a error during compilation.
* Adds support for name to gpio conversion in s5p_gpio to enable
gpio command EXYNOS SoCs. Function has been added to asm/gpio.h
to decode the input gpio name to gpio number.
Example: SMDK5420 # gpio set gpa00
Signed-off-by: Leela Krishna Amudala <l.kris...@samsung.com>
Signed-off-by: Rajeshwari Shinde <rajeshwar...@samsung.com>
Signed-off-by: Akshay Saraswat <aksha...@samsung.com>
---
arch/arm/cpu/armv7/exynos/pinmux.c | 403 +++----
arch/arm/include/asm/arch-exynos/cpu.h | 17 +-
arch/arm/include/asm/arch-exynos/gpio.h | 1786 +++++++++++++++++++++++++-----
arch/arm/include/asm/arch-s5pc1xx/gpio.h | 941 +++++++++++++---
board/samsung/arndale/arndale.c | 11 +-
board/samsung/goni/goni.c | 26 +-
board/samsung/smdk5250/exynos5-dt.c | 20 +-
board/samsung/smdk5250/smdk5250.c | 19 +-
board/samsung/smdk5420/smdk5420.c | 15 +-
board/samsung/smdkc100/smdkc100.c | 5 +-
board/samsung/smdkv310/smdkv310.c | 17 +-
board/samsung/trats/trats.c | 39 +-
board/samsung/trats2/trats2.c | 74 +-
board/samsung/universal_c210/universal.c | 51 +-
drivers/gpio/s5p_gpio.c | 195 +++-
15 files changed, 2778 insertions(+), 841 deletions(-)
diff --git a/drivers/gpio/s5p_gpio.c b/drivers/gpio/s5p_gpio.c
index 11a0472..a93928a 100644
--- a/drivers/gpio/s5p_gpio.c
+++ b/drivers/gpio/s5p_gpio.c
@@ -8,11 +8,12 @@
#include <common.h>
#include <asm/io.h>
#include <asm/gpio.h>
+#include <asm/arch-exynos/gpio.h>
This is common driver, so it should be:
#include <asm/arch/gpio.h>
#define S5P_GPIO_GET_BANK(x) ((x >> S5P_GPIO_BANK_SHIFT) \
& S5P_GPIO_BANK_MASK)
-#define S5P_GPIO_GET_PIN(x) (x & S5P_GPIO_PIN_MASK)
+#define S5P_GPIO_GET_PIN(x) ((x & S5P_GPIO_PIN_MASK) % GPIO_PER_BANK)
And again...we don't need above macros, we can use now linear numbering.
+#ifdef HAVE_GENERIC_GPIO
+struct s5p_gpio_bank *s5p_gpio_get_bank(unsigned int gpio)
+{
+ const struct gpio_info *data;
+ unsigned int upto;
+ int i, count;
+
+ data = get_gpio_data();
+ count = get_bank_num();
+ for (i = upto = 0; i < count;
+ i++, upto = data->max_gpio, data++) {
+ debug("i=%d, upto=%d\n", i, upto);
+ if (gpio < data->max_gpio) {
+ struct s5p_gpio_bank *bank;
+ bank = (struct s5p_gpio_bank *)data->reg_addr;
+ bank += (gpio - upto) / GPIO_PER_BANK;
+ debug("gpio=%d, bank=%p\n", gpio, bank);
+ return bank;
+ }
+ }
+ return NULL;
+}
+#else
You are using exynos_gpio_get() in code but this function is not
compiled. Again please remove it.
struct s5p_gpio_bank *s5p_gpio_get_bank(unsigned gpio)
{
unsigned bank = S5P_GPIO_GET_BANK(gpio);
@@ -134,6 +252,7 @@ struct s5p_gpio_bank *s5p_gpio_get_bank(unsigned gpio)
return (struct s5p_gpio_bank *)(base + bank);
}
+#endif
Thanks
--
Przemyslaw Marczak
Samsung R&D Institute Poland
Samsung Electronics
p.marc...@samsung.com
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