diff options
Diffstat (limited to 'drivers/bus/arm-cci.c')
| -rw-r--r-- | drivers/bus/arm-cci.c | 17 |
1 files changed, 13 insertions, 4 deletions
diff --git a/drivers/bus/arm-cci.c b/drivers/bus/arm-cci.c index 23dc0b890d0c..443e4c3fd357 100644 --- a/drivers/bus/arm-cci.c +++ b/drivers/bus/arm-cci.c @@ -25,9 +25,8 @@ #include <asm/cacheflush.h> #include <asm/smp_plat.h> -/* Referenced read-only by the PMU driver; see drivers/perf/arm-cci.c */ -void __iomem *cci_ctrl_base; -static unsigned long cci_ctrl_phys; +static void __iomem *cci_ctrl_base __ro_after_init; +static unsigned long cci_ctrl_phys __ro_after_init; #ifdef CONFIG_ARM_CCI400_PORT_CTRL struct cci_nb_ports { @@ -56,6 +55,15 @@ static const struct of_device_id arm_cci_matches[] = { {}, }; +static const struct of_dev_auxdata arm_cci_auxdata[] = { + OF_DEV_AUXDATA("arm,cci-400-pmu", 0, NULL, &cci_ctrl_base), + OF_DEV_AUXDATA("arm,cci-400-pmu,r0", 0, NULL, &cci_ctrl_base), + OF_DEV_AUXDATA("arm,cci-400-pmu,r1", 0, NULL, &cci_ctrl_base), + OF_DEV_AUXDATA("arm,cci-500-pmu,r0", 0, NULL, &cci_ctrl_base), + OF_DEV_AUXDATA("arm,cci-550-pmu,r0", 0, NULL, &cci_ctrl_base), + {} +}; + #define DRIVER_NAME "ARM-CCI" static int cci_platform_probe(struct platform_device *pdev) @@ -63,7 +71,8 @@ static int cci_platform_probe(struct platform_device *pdev) if (!cci_probed()) return -ENODEV; - return of_platform_populate(pdev->dev.of_node, NULL, NULL, &pdev->dev); + return of_platform_populate(pdev->dev.of_node, NULL, + arm_cci_auxdata, &pdev->dev); } static struct platform_driver cci_platform_driver = { |