#include <linux/err.h>
#include <linux/proc_fs.h>
#include <linux/seq_file.h>
-#include <asm/blackfin.h>
-#include <asm/gpio.h>
-#include <asm/portmux.h>
+#include <linux/gpio.h>
#include <linux/irq.h>
-#include <asm/irq_handler.h>
#if ANOMALY_05000311 || ANOMALY_05000323
enum {
(struct gpio_port_t *) FIO0_FLAG_D,
(struct gpio_port_t *) FIO1_FLAG_D,
(struct gpio_port_t *) FIO2_FLAG_D,
-#elif defined(CONFIG_BF54x) || defined(CONFIG_BF60x)
- (struct gpio_port_t *)PORTA_FER,
- (struct gpio_port_t *)PORTB_FER,
- (struct gpio_port_t *)PORTC_FER,
- (struct gpio_port_t *)PORTD_FER,
- (struct gpio_port_t *)PORTE_FER,
- (struct gpio_port_t *)PORTF_FER,
- (struct gpio_port_t *)PORTG_FER,
-# if defined(CONFIG_BF54x)
- (struct gpio_port_t *)PORTH_FER,
- (struct gpio_port_t *)PORTI_FER,
- (struct gpio_port_t *)PORTJ_FER,
-# endif
#else
# error no gpio arrays defined
#endif
inline int check_gpio(unsigned gpio)
{
-#if defined(CONFIG_BF54x)
- if (gpio == GPIO_PB15 || gpio == GPIO_PC14 || gpio == GPIO_PC15
- || gpio == GPIO_PH14 || gpio == GPIO_PH15
- || gpio == GPIO_PJ14 || gpio == GPIO_PJ15)
- return -EINVAL;
-#endif
if (gpio >= MAX_BLACKFIN_GPIOS)
return -EINVAL;
return 0;
else
*port_fer[gpio_bank(gpio)] |= gpio_bit(gpio);
SSYNC();
-#elif defined(CONFIG_BF54x) || defined(CONFIG_BF60x)
- if (usage == GPIO_USAGE)
- gpio_array[gpio_bank(gpio)]->port_fer &= ~gpio_bit(gpio);
- else
- gpio_array[gpio_bank(gpio)]->port_fer |= gpio_bit(gpio);
- SSYNC();
#endif
}
u16 ident = P_IDENT(per);
u16 function = P_FUNCT2MUX(per);
s8 offset = port_mux[ident];
- u16 m, pmux, pfunc;
+ u16 m, pmux, pfunc, mask;
if (offset < 0)
return 0;
continue;
if (offset == 1)
- pfunc = (pmux >> offset) & 3;
+ mask = 3;
else
- pfunc = (pmux >> offset) & 1;
- if (pfunc != function) {
+ mask = 1;
+
+ pfunc = (pmux >> offset) & mask;
+ if (pfunc != (function & mask)) {
pr_err("pin group conflict! request pin %d func %d conflict with pin %d func %d\n",
ident, function, m, pfunc);
return -EINVAL;
u16 ident = P_IDENT(per);
u16 function = P_FUNCT2MUX(per);
s8 offset = port_mux[ident];
- u16 pmux;
+ u16 pmux, mask;
if (offset == -1)
return;
pmux = bfin_read_PORT_MUX();
- if (offset != 1)
- pmux &= ~(1 << offset);
+ if (offset == 1)
+ mask = 3;
else
- pmux &= ~(3 << 1);
- pmux |= (function << offset);
- bfin_write_PORT_MUX(pmux);
-}
-#elif defined(CONFIG_BF54x) || defined(CONFIG_BF60x)
-inline void portmux_setup(unsigned short per)
-{
- u16 ident = P_IDENT(per);
- u16 function = P_FUNCT2MUX(per);
- u32 pmux;
+ mask = 1;
- pmux = gpio_array[gpio_bank(ident)]->port_mux;
+ pmux &= ~(mask << offset);
+ pmux |= ((function & mask) << offset);
- pmux &= ~(0x3 << (2 * gpio_sub_n(ident)));
- pmux |= (function & 0x3) << (2 * gpio_sub_n(ident));
-
- gpio_array[gpio_bank(ident)]->port_mux = pmux;
-}
-
-inline u16 get_portmux(unsigned short per)
-{
- u16 ident = P_IDENT(per);
- u32 pmux = gpio_array[gpio_bank(ident)]->port_mux;
- return (pmux >> (2 * gpio_sub_n(ident)) & 0x3);
-}
-static int portmux_group_check(unsigned short per)
-{
- return 0;
+ bfin_write_PORT_MUX(pmux);
}
#elif defined(CONFIG_BF52x) || defined(CONFIG_BF51x)
static int portmux_group_check(unsigned short per)
}
#endif
-#if !(defined(CONFIG_BF54x) || defined(CONFIG_BF60x))
/***********************************************************
*
* FUNCTIONS: Blackfin General Purpose Ports Access Functions
*************************************************************
* MODIFICATION HISTORY :
**************************************************************/
-int gpio_pm_wakeup_ctrl(unsigned gpio, unsigned ctrl)
+int bfin_gpio_pm_wakeup_ctrl(unsigned gpio, unsigned ctrl)
{
unsigned long flags;
return 0;
}
-int bfin_pm_standby_ctrl(unsigned ctrl)
+int bfin_gpio_pm_standby_ctrl(unsigned ctrl)
{
u16 bank, mask, i;
#endif
-#else /* CONFIG_BF54x || CONFIG_BF60x */
-#ifdef CONFIG_PM
-
-int bfin_pm_standby_ctrl(unsigned ctrl)
-{
- return 0;
-}
-
-void bfin_gpio_pm_hibernate_suspend(void)
-{
- int i, bank;
-
- for (i = 0; i < MAX_BLACKFIN_GPIOS; i += GPIO_BANKSIZE) {
- bank = gpio_bank(i);
-
- gpio_bank_saved[bank].fer = gpio_array[bank]->port_fer;
- gpio_bank_saved[bank].mux = gpio_array[bank]->port_mux;
- gpio_bank_saved[bank].data = gpio_array[bank]->data;
- gpio_bank_saved[bank].inen = gpio_array[bank]->inen;
- gpio_bank_saved[bank].dir = gpio_array[bank]->dir_set;
- }
-}
-
-void bfin_gpio_pm_hibernate_restore(void)
-{
- int i, bank;
-
- for (i = 0; i < MAX_BLACKFIN_GPIOS; i += GPIO_BANKSIZE) {
- bank = gpio_bank(i);
-
- gpio_array[bank]->port_mux = gpio_bank_saved[bank].mux;
- gpio_array[bank]->port_fer = gpio_bank_saved[bank].fer;
- gpio_array[bank]->inen = gpio_bank_saved[bank].inen;
- gpio_array[bank]->data_set = gpio_bank_saved[bank].data
- & gpio_bank_saved[bank].dir;
- gpio_array[bank]->dir_set = gpio_bank_saved[bank].dir;
- }
-}
-#endif
-
-unsigned short get_gpio_dir(unsigned gpio)
-{
- return (0x01 & (gpio_array[gpio_bank(gpio)]->dir_clear >> gpio_sub_n(gpio)));
-}
-EXPORT_SYMBOL(get_gpio_dir);
-
-#endif /* CONFIG_BF54x || CONFIG_BF60x */
/***********************************************************
*
* be requested and used by several drivers
*/
-#if defined(CONFIG_BF54x) || defined(CONFIG_BF60x)
- if (!((per & P_MAYSHARE) && get_portmux(per) == P_FUNCT2MUX(per))) {
-#else
if (!(per & P_MAYSHARE)) {
-#endif
/*
* Allow that the identical pin function can
* be requested from the same driver twice
if (unlikely(is_reserved(gpio_irq, gpio, 1))) {
printk(KERN_NOTICE "bfin-gpio: GPIO %d is already reserved as gpio-irq!"
" (Documentation/blackfin/bfin-gpio-notes.txt)\n", gpio);
- }
-#if !(defined(CONFIG_BF54x) || defined(CONFIG_BF60x))
- else { /* Reset POLAR setting when acquiring a gpio for the first time */
+ } else { /* Reset POLAR setting when acquiring a gpio for the first time */
set_gpio_polar(gpio, 0);
}
-#endif
reserve(gpio, gpio);
set_label(gpio, label);
static inline void __bfin_gpio_direction_input(unsigned gpio)
{
-#if defined(CONFIG_BF54x) || defined(CONFIG_BF60x)
- gpio_array[gpio_bank(gpio)]->dir_clear = gpio_bit(gpio);
-#else
gpio_array[gpio_bank(gpio)]->dir &= ~gpio_bit(gpio);
-#endif
gpio_array[gpio_bank(gpio)]->inen |= gpio_bit(gpio);
}
void bfin_gpio_irq_prepare(unsigned gpio)
{
-#if defined(CONFIG_BF54x) || defined(CONFIG_BF60x)
- unsigned long flags;
-#endif
-
port_setup(gpio, GPIO_USAGE);
-
-#if defined(CONFIG_BF54x) || defined(CONFIG_BF60x)
- flags = hard_local_irq_save();
- __bfin_gpio_direction_input(gpio);
- hard_local_irq_restore(flags);
-#endif
}
void bfin_gpio_set_value(unsigned gpio, int arg)
gpio_array[gpio_bank(gpio)]->inen &= ~gpio_bit(gpio);
gpio_set_value(gpio, value);
-#if defined(CONFIG_BF54x) || defined(CONFIG_BF60x)
- gpio_array[gpio_bank(gpio)]->dir_set = gpio_bit(gpio);
-#else
gpio_array[gpio_bank(gpio)]->dir |= gpio_bit(gpio);
-#endif
AWA_DUMMY_READ(dir);
hard_local_irq_restore(flags);
int bfin_gpio_get_value(unsigned gpio)
{
-#if defined(CONFIG_BF54x) || defined(CONFIG_BF60x)
- return (1 & (gpio_array[gpio_bank(gpio)]->data >> gpio_sub_n(gpio)));
-#else
unsigned long flags;
if (unlikely(get_gpio_edge(gpio))) {
return ret;
} else
return get_gpio_data(gpio);
-#endif
}
EXPORT_SYMBOL(bfin_gpio_get_value);
projects / linux-drm-fsl-dcu.git / blobdiff