diff options
| -rw-r--r-- | drivers/staging/mmio/st_mmio.c | 39 |
1 files changed, 37 insertions, 2 deletions
diff --git a/drivers/staging/mmio/st_mmio.c b/drivers/staging/mmio/st_mmio.c index b7f2cc997e6..96f6ff1fe36 100644 --- a/drivers/staging/mmio/st_mmio.c +++ b/drivers/staging/mmio/st_mmio.c @@ -111,6 +111,36 @@ struct mmio_info { */ static struct mmio_info *info; +/* + * This function converts a given logical memory region size + * to appropriate ISP_MCU_SYS_SIZEx register value. + */ +static int get_mcu_sys_size(u32 size, u32 *val) +{ + int ret = 0; + + if (size > 0 && size <= SZ_4K) + *val = 4; + else if (size > SZ_4K && size <= SZ_8K) + *val = 5; + else if (size > SZ_8K && size <= SZ_16K) + *val = 6; + else if (size > SZ_16K && size <= SZ_32K) + *val = 7; + else if (size > SZ_32K && size <= SZ_64K) + *val = 0; + else if (size > SZ_64K && size <= SZ_1M) + *val = 1; + else if (size > SZ_1M && size <= SZ_16M) + *val = 2; + else if (size > SZ_16M && size <= SZ_256M) + *val = 3; + else + ret = -EINVAL; + + return ret; +} + static int mmio_cam_pwr_sensor(struct mmio_info *info, int on) { int err = 0; @@ -302,8 +332,13 @@ static int mmio_load_xp70_fw(struct mmio_info *info, */ writew(upper_16_bits(xp70_fw->addr_sdram_ext), info->siabase + SIA_ISP_MCU_SYS_ADDR1_OFFSET); - /* ISP_MCU_SYS_SIZEx XP70 register (size of the code =64KB) */ - writew(0x0, info->siabase + SIA_ISP_MCU_SYS_SIZE1_OFFSET); + /* ISP_MCU_SYS_SIZEx XP70 register */ + err = get_mcu_sys_size(xp70_fw->size_sdram_ext, &itval); + + if (err) + goto err_exit; + + writew(itval, info->siabase + SIA_ISP_MCU_SYS_SIZE1_OFFSET); } return 0; |