diff options
Diffstat (limited to 'hw/pxa2xx_gpio.c')
| -rw-r--r-- | hw/pxa2xx_gpio.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/hw/pxa2xx_gpio.c b/hw/pxa2xx_gpio.c index 85aeb50cc3..723b1c1d03 100644 --- a/hw/pxa2xx_gpio.c +++ b/hw/pxa2xx_gpio.c @@ -24,6 +24,7 @@ struct pxa2xx_gpio_info_s { uint32_t rising[PXA2XX_GPIO_BANKS]; uint32_t falling[PXA2XX_GPIO_BANKS]; uint32_t status[PXA2XX_GPIO_BANKS]; + uint32_t gpsr[PXA2XX_GPIO_BANKS]; uint32_t gafr[PXA2XX_GPIO_BANKS * 2]; uint32_t prev_level[PXA2XX_GPIO_BANKS]; @@ -152,6 +153,11 @@ static uint32_t pxa2xx_gpio_read(void *opaque, target_phys_addr_t offset) case GPDR: /* GPIO Pin-Direction registers */ return s->dir[bank]; + case GPSR: /* GPIO Pin-Output Set registers */ + printf("%s: Read from a write-only register " REG_FMT "\n", + __FUNCTION__, offset); + return s->gpsr[bank]; /* Return last written value. */ + case GRER: /* GPIO Rising-Edge Detect Enable registers */ return s->rising[bank]; @@ -201,6 +207,7 @@ static void pxa2xx_gpio_write(void *opaque, case GPSR: /* GPIO Pin-Output Set registers */ s->olevel[bank] |= value; pxa2xx_gpio_handler_update(s); + s->gpsr[bank] = value; break; case GPCR: /* GPIO Pin-Output Clear registers */ |