[U-Boot] [PATCH v2 2/4] Exynos5800: Add support for Exynos5800

[Hyungwon Hwang]

Dear Lukasz,

On Mon, 03 Nov 2014 09:34:12 +0100
Lukasz Majewski <l.majewski at samsung.com> wrote:

> Hi Hyungwon,
> 
> > The gpios of Exynos5800 are different from that of Exynos5420. This
> > patch adds the gpio information and table of Exynos5800.
> > 
> > Signed-off-by: Hyungwon Hwang <human.hwang at samsung.com>
> > ---
> >  arch/arm/include/asm/arch-exynos/gpio.h | 31
> > +++++++++++++++++++++++++++++--
> > drivers/gpio/s5p_gpio.c                 |  4 +++- 2 files changed, 32
> > insertions(+), 3 deletions(-)
> > 
> > diff --git a/arch/arm/include/asm/arch-exynos/gpio.h
> > b/arch/arm/include/asm/arch-exynos/gpio.h index 431ae3a..8f82ef0
> > 100644 --- a/arch/arm/include/asm/arch-exynos/gpio.h
> > +++ b/arch/arm/include/asm/arch-exynos/gpio.h
> > @@ -1368,11 +1368,21 @@ static struct gpio_info
> > exynos5420_gpio_data[EXYNOS5420_GPIO_NUM_PARTS] =
> > { { EXYNOS5420_GPIO_PART5_BASE, EXYNOS5420_GPIO_MAX_PORT }, };
> >  
> > +#define EXYNOS5800_GPIO_NUM_PARTS	4
> > +static struct gpio_info
> > exynos5800_gpio_data[EXYNOS5800_GPIO_NUM_PARTS] = {
> > +	{ EXYNOS5420_GPIO_PART1_BASE,
> > EXYNOS5420_GPIO_MAX_PORT_PART_1 },
> > +	{ EXYNOS5420_GPIO_PART2_BASE,
> > EXYNOS5420_GPIO_MAX_PORT_PART_2 },
> > +	{ EXYNOS5420_GPIO_PART3_BASE,
> > EXYNOS5420_GPIO_MAX_PORT_PART_3 },
> > +	{ EXYNOS5420_GPIO_PART4_BASE,
> > EXYNOS5420_GPIO_MAX_PORT_PART_4 }, +};
> > +
> >  static inline struct gpio_info *get_gpio_data(void)
> >  {
> >  	if (cpu_is_exynos5()) {
> > -		if (proid_is_exynos5420() || proid_is_exynos5800())
> > +		if (proid_is_exynos5420())
> >  			return exynos5420_gpio_data;
> > +		else if (proid_is_exynos5800())
> > +			return exynos5800_gpio_data;
> >  		else
> >  			return exynos5_gpio_data;
> >  	} else if (cpu_is_exynos4()) {
> > @@ -1388,8 +1398,10 @@ static inline struct gpio_info
> > *get_gpio_data(void) static inline unsigned int get_bank_num(void)
> >  {
> >  	if (cpu_is_exynos5()) {
> > -		if (proid_is_exynos5420() || proid_is_exynos5800())
> > +		if (proid_is_exynos5420())
> >  			return EXYNOS5420_GPIO_NUM_PARTS;
> > +		if (proid_is_exynos5800())
> > +			return EXYNOS5800_GPIO_NUM_PARTS;
> 
> I'm just wondering if Exynos5800 and Exynos5420 are not GPIO compatible?
> 

Yes. You're right. I thought I miss the last page of GPIO specification of
Exynos5800. This patch will be removed from Version 3.

> >  		else
> >  			return EXYNOS5_GPIO_NUM_PARTS;
> >  	} else if (cpu_is_exynos4()) {
> > @@ -1493,6 +1505,21 @@ static const struct gpio_name_num_table
> > exynos5420_gpio_table[] = { { 0 }
> >  };
> >  
> > +static const struct gpio_name_num_table exynos5800_gpio_table[] = {
> > +	GPIO_ENTRY('x', EXYNOS5420_GPIO_X00, EXYNOS5420_GPIO_C00, 0),
> > +	GPIO_ENTRY('c', EXYNOS5420_GPIO_C00, EXYNOS5420_GPIO_D10, 0),
> > +	GPIO_ENTRY('d', EXYNOS5420_GPIO_D10, EXYNOS5420_GPIO_Y00, 0),
> > +	GPIO_ENTRY('y', EXYNOS5420_GPIO_Y00, EXYNOS5420_GPIO_E00, 0),
> > +	GPIO_ENTRY('e', EXYNOS5420_GPIO_E00, EXYNOS5420_GPIO_F00, 0),
> > +	GPIO_ENTRY('f', EXYNOS5420_GPIO_F00, EXYNOS5420_GPIO_G00, 0),
> > +	GPIO_ENTRY('g', EXYNOS5420_GPIO_G00, EXYNOS5420_GPIO_J40, 0),
> > +	GPIO_ENTRY('j', EXYNOS5420_GPIO_J40, EXYNOS5420_GPIO_A00, 0),
> > +	GPIO_ENTRY('a', EXYNOS5420_GPIO_A00, EXYNOS5420_GPIO_B00, 0),
> > +	GPIO_ENTRY('b', EXYNOS5420_GPIO_B00, EXYNOS5420_GPIO_H00, 0),
> > +	GPIO_ENTRY('h', EXYNOS5420_GPIO_H00, EXYNOS5420_GPIO_Z0, 0),
> > +	{ 0 }
> > +};
> > +
> >  void gpio_cfg_pin(int gpio, int cfg);
> >  void gpio_set_pull(int gpio, int mode);
> >  void gpio_set_drv(int gpio, int mode);
> > diff --git a/drivers/gpio/s5p_gpio.c b/drivers/gpio/s5p_gpio.c
> > index bcf44eb..bed7cd7 100644
> > --- a/drivers/gpio/s5p_gpio.c
> > +++ b/drivers/gpio/s5p_gpio.c
> > @@ -57,11 +57,13 @@ static inline int s5p_name_to_gpio(const char
> > *name) */
> >  #if defined(CONFIG_EXYNOS4) || defined(CONFIG_EXYNOS5)
> >  	if (cpu_is_exynos5()) {
> > -		if (proid_is_exynos5420() || proid_is_exynos5800()) {
> > +		if (proid_is_exynos5420()) {
> >  			tabp = exynos5420_gpio_table;
> >  			irregular_bank_name = 'y';
> >  			irregular_set_number = '7';
> >  			irregular_bank_base = EXYNOS5420_GPIO_Y70;
> > +		} else if (proid_is_exynos5800()) {
> > +			tabp = exynos5800_gpio_table;
> >  		} else {
> >  			tabp = exynos5_gpio_table;
> >  			irregular_bank_name = 'c';
> 
> 
> 

Best regards,
Hyungwon Hwang

-- 
Hyungwon Hwang
S/W Platform Team, Software Center
Samsung Electronics
human.hwang at samsung.com