diff options
Diffstat (limited to 'drivers/bus')
| -rw-r--r-- | drivers/bus/mips_cdmm.c | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/drivers/bus/mips_cdmm.c b/drivers/bus/mips_cdmm.c index ab3bde16ecb4..1c543effe062 100644 --- a/drivers/bus/mips_cdmm.c +++ b/drivers/bus/mips_cdmm.c @@ -332,6 +332,18 @@ static phys_addr_t mips_cdmm_cur_base(void) } /** + * mips_cdmm_phys_base() - Choose a physical base address for CDMM region. + * + * Picking a suitable physical address at which to map the CDMM region is + * platform specific, so this weak function can be overridden by platform + * code to pick a suitable value if none is configured by the bootloader. + */ +phys_addr_t __weak mips_cdmm_phys_base(void) +{ + return 0; +} + +/** * mips_cdmm_setup() - Ensure the CDMM bus is initialised and usable. * @bus: Pointer to bus information for current CPU. * IS_ERR(bus) is checked, so no need for caller to check. @@ -368,7 +380,7 @@ static int mips_cdmm_setup(struct mips_cdmm_bus *bus) if (!bus->phys) bus->phys = mips_cdmm_cur_base(); /* Otherwise, ask platform code for suggestions */ - if (!bus->phys && mips_cdmm_phys_base) + if (!bus->phys) bus->phys = mips_cdmm_phys_base(); /* Otherwise, copy what other CPUs have done */ if (!bus->phys) |