diff options
Diffstat (limited to 'arch/arm/mach-pxa/mfp-pxa2xx.h')
| -rw-r--r-- | arch/arm/mach-pxa/mfp-pxa2xx.h | 143 |
1 files changed, 143 insertions, 0 deletions
diff --git a/arch/arm/mach-pxa/mfp-pxa2xx.h b/arch/arm/mach-pxa/mfp-pxa2xx.h new file mode 100644 index 0000000000..683a3ea5f1 --- /dev/null +++ b/arch/arm/mach-pxa/mfp-pxa2xx.h @@ -0,0 +1,143 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef __ASM_ARCH_MFP_PXA2XX_H +#define __ASM_ARCH_MFP_PXA2XX_H + +#include <linux/soc/pxa/mfp.h> + +/* + * the following MFP_xxx bit definitions in mfp.h are re-used for pxa2xx: + * + * MFP_PIN(x) + * MFP_AFx + * MFP_LPM_DRIVE_{LOW, HIGH} + * MFP_LPM_EDGE_x + * + * other MFP_x bit definitions will be ignored + * + * and adds the below two bits specifically for pxa2xx: + * + * bit 23 - Input/Output (PXA2xx specific) + * bit 24 - Wakeup Enable(PXA2xx specific) + * bit 25 - Keep Output (PXA2xx specific) + */ + +#define MFP_DIR_IN (0x0 << 23) +#define MFP_DIR_OUT (0x1 << 23) +#define MFP_DIR_MASK (0x1 << 23) +#define MFP_DIR(x) (((x) >> 23) & 0x1) + +#define MFP_LPM_CAN_WAKEUP (0x1 << 24) + +/* + * MFP_LPM_KEEP_OUTPUT must be specified for pins that need to + * retain their last output level (low or high). + * Note: MFP_LPM_KEEP_OUTPUT has no effect on pins configured for input. + */ +#define MFP_LPM_KEEP_OUTPUT (0x1 << 25) + +#define WAKEUP_ON_EDGE_RISE (MFP_LPM_CAN_WAKEUP | MFP_LPM_EDGE_RISE) +#define WAKEUP_ON_EDGE_FALL (MFP_LPM_CAN_WAKEUP | MFP_LPM_EDGE_FALL) +#define WAKEUP_ON_EDGE_BOTH (MFP_LPM_CAN_WAKEUP | MFP_LPM_EDGE_BOTH) + +/* specifically for enabling wakeup on keypad GPIOs */ +#define WAKEUP_ON_LEVEL_HIGH (MFP_LPM_CAN_WAKEUP) + +#define MFP_CFG_IN(pin, af) \ + ((MFP_CFG_DEFAULT & ~(MFP_AF_MASK | MFP_DIR_MASK)) |\ + (MFP_PIN(MFP_PIN_##pin) | MFP_##af | MFP_DIR_IN)) + +/* NOTE: pins configured as output _must_ provide a low power state, + * and this state should help to minimize the power dissipation. + */ +#define MFP_CFG_OUT(pin, af, state) \ + ((MFP_CFG_DEFAULT & ~(MFP_AF_MASK | MFP_DIR_MASK | MFP_LPM_STATE_MASK)) |\ + (MFP_PIN(MFP_PIN_##pin) | MFP_##af | MFP_DIR_OUT | MFP_LPM_##state)) + +/* Common configurations for pxa25x and pxa27x + * + * Note: pins configured as GPIO are always initialized to input + * so not to cause any side effect + */ +#define GPIO0_GPIO MFP_CFG_IN(GPIO0, AF0) +#define GPIO1_GPIO MFP_CFG_IN(GPIO1, AF0) +#define GPIO9_GPIO MFP_CFG_IN(GPIO9, AF0) +#define GPIO10_GPIO MFP_CFG_IN(GPIO10, AF0) +#define GPIO11_GPIO MFP_CFG_IN(GPIO11, AF0) +#define GPIO12_GPIO MFP_CFG_IN(GPIO12, AF0) +#define GPIO13_GPIO MFP_CFG_IN(GPIO13, AF0) +#define GPIO14_GPIO MFP_CFG_IN(GPIO14, AF0) +#define GPIO15_GPIO MFP_CFG_IN(GPIO15, AF0) +#define GPIO16_GPIO MFP_CFG_IN(GPIO16, AF0) +#define GPIO17_GPIO MFP_CFG_IN(GPIO17, AF0) +#define GPIO18_GPIO MFP_CFG_IN(GPIO18, AF0) +#define GPIO19_GPIO MFP_CFG_IN(GPIO19, AF0) +#define GPIO20_GPIO MFP_CFG_IN(GPIO20, AF0) +#define GPIO21_GPIO MFP_CFG_IN(GPIO21, AF0) +#define GPIO22_GPIO MFP_CFG_IN(GPIO22, AF0) +#define GPIO23_GPIO MFP_CFG_IN(GPIO23, AF0) +#define GPIO24_GPIO MFP_CFG_IN(GPIO24, AF0) +#define GPIO25_GPIO MFP_CFG_IN(GPIO25, AF0) +#define GPIO26_GPIO MFP_CFG_IN(GPIO26, AF0) +#define GPIO27_GPIO MFP_CFG_IN(GPIO27, AF0) +#define GPIO28_GPIO MFP_CFG_IN(GPIO28, AF0) +#define GPIO29_GPIO MFP_CFG_IN(GPIO29, AF0) +#define GPIO30_GPIO MFP_CFG_IN(GPIO30, AF0) +#define GPIO31_GPIO MFP_CFG_IN(GPIO31, AF0) +#define GPIO32_GPIO MFP_CFG_IN(GPIO32, AF0) +#define GPIO33_GPIO MFP_CFG_IN(GPIO33, AF0) +#define GPIO34_GPIO MFP_CFG_IN(GPIO34, AF0) +#define GPIO35_GPIO MFP_CFG_IN(GPIO35, AF0) +#define GPIO36_GPIO MFP_CFG_IN(GPIO36, AF0) +#define GPIO37_GPIO MFP_CFG_IN(GPIO37, AF0) +#define GPIO38_GPIO MFP_CFG_IN(GPIO38, AF0) +#define GPIO39_GPIO MFP_CFG_IN(GPIO39, AF0) +#define GPIO40_GPIO MFP_CFG_IN(GPIO40, AF0) +#define GPIO41_GPIO MFP_CFG_IN(GPIO41, AF0) +#define GPIO42_GPIO MFP_CFG_IN(GPIO42, AF0) +#define GPIO43_GPIO MFP_CFG_IN(GPIO43, AF0) +#define GPIO44_GPIO MFP_CFG_IN(GPIO44, AF0) +#define GPIO45_GPIO MFP_CFG_IN(GPIO45, AF0) +#define GPIO46_GPIO MFP_CFG_IN(GPIO46, AF0) +#define GPIO47_GPIO MFP_CFG_IN(GPIO47, AF0) +#define GPIO48_GPIO MFP_CFG_IN(GPIO48, AF0) +#define GPIO49_GPIO MFP_CFG_IN(GPIO49, AF0) +#define GPIO50_GPIO MFP_CFG_IN(GPIO50, AF0) +#define GPIO51_GPIO MFP_CFG_IN(GPIO51, AF0) +#define GPIO52_GPIO MFP_CFG_IN(GPIO52, AF0) +#define GPIO53_GPIO MFP_CFG_IN(GPIO53, AF0) +#define GPIO54_GPIO MFP_CFG_IN(GPIO54, AF0) +#define GPIO55_GPIO MFP_CFG_IN(GPIO55, AF0) +#define GPIO56_GPIO MFP_CFG_IN(GPIO56, AF0) +#define GPIO57_GPIO MFP_CFG_IN(GPIO57, AF0) +#define GPIO58_GPIO MFP_CFG_IN(GPIO58, AF0) +#define GPIO59_GPIO MFP_CFG_IN(GPIO59, AF0) +#define GPIO60_GPIO MFP_CFG_IN(GPIO60, AF0) +#define GPIO61_GPIO MFP_CFG_IN(GPIO61, AF0) +#define GPIO62_GPIO MFP_CFG_IN(GPIO62, AF0) +#define GPIO63_GPIO MFP_CFG_IN(GPIO63, AF0) +#define GPIO64_GPIO MFP_CFG_IN(GPIO64, AF0) +#define GPIO65_GPIO MFP_CFG_IN(GPIO65, AF0) +#define GPIO66_GPIO MFP_CFG_IN(GPIO66, AF0) +#define GPIO67_GPIO MFP_CFG_IN(GPIO67, AF0) +#define GPIO68_GPIO MFP_CFG_IN(GPIO68, AF0) +#define GPIO69_GPIO MFP_CFG_IN(GPIO69, AF0) +#define GPIO70_GPIO MFP_CFG_IN(GPIO70, AF0) +#define GPIO71_GPIO MFP_CFG_IN(GPIO71, AF0) +#define GPIO72_GPIO MFP_CFG_IN(GPIO72, AF0) +#define GPIO73_GPIO MFP_CFG_IN(GPIO73, AF0) +#define GPIO74_GPIO MFP_CFG_IN(GPIO74, AF0) +#define GPIO75_GPIO MFP_CFG_IN(GPIO75, AF0) +#define GPIO76_GPIO MFP_CFG_IN(GPIO76, AF0) +#define GPIO77_GPIO MFP_CFG_IN(GPIO77, AF0) +#define GPIO78_GPIO MFP_CFG_IN(GPIO78, AF0) +#define GPIO79_GPIO MFP_CFG_IN(GPIO79, AF0) +#define GPIO80_GPIO MFP_CFG_IN(GPIO80, AF0) +#define GPIO81_GPIO MFP_CFG_IN(GPIO81, AF0) +#define GPIO82_GPIO MFP_CFG_IN(GPIO82, AF0) +#define GPIO83_GPIO MFP_CFG_IN(GPIO83, AF0) +#define GPIO84_GPIO MFP_CFG_IN(GPIO84, AF0) + +extern void pxa2xx_mfp_config(unsigned long *mfp_cfgs, int num); +extern void pxa2xx_mfp_set_lpm(int mfp, unsigned long lpm); +extern int gpio_set_wake(unsigned int gpio, unsigned int on); +#endif /* __ASM_ARCH_MFP_PXA2XX_H */ |