Signed-off-by: Andrey Smirnov <andrew.smirnov@xxxxxxxxx> --- arch/arm/mach-imx/include/mach/vf610-regs.h | 3 ++ arch/arm/mach-imx/include/mach/vf610.h | 51 +++++++++++++++++++++++++++++ 2 files changed, 54 insertions(+) create mode 100644 arch/arm/mach-imx/include/mach/vf610.h diff --git a/arch/arm/mach-imx/include/mach/vf610-regs.h b/arch/arm/mach-imx/include/mach/vf610-regs.h index 87772ee76..416b457af 100644 --- a/arch/arm/mach-imx/include/mach/vf610-regs.h +++ b/arch/arm/mach-imx/include/mach/vf610-regs.h @@ -109,4 +109,7 @@ #define VF610_MSCM_IRSPRC_CP0_EN 1 #define VF610_MSCM_IRSPRC_NUM 112 +#define VF610_MSCM_CPxCOUNT 0x00c +#define VF610_MSCM_CPxCFG1 0x014 + #endif diff --git a/arch/arm/mach-imx/include/mach/vf610.h b/arch/arm/mach-imx/include/mach/vf610.h new file mode 100644 index 000000000..6d00d2e45 --- /dev/null +++ b/arch/arm/mach-imx/include/mach/vf610.h @@ -0,0 +1,51 @@ +#ifndef __MACH_VF610_H +#define __MACH_VF610_H + +#include <io.h> +#include <mach/generic.h> +#include <mach/vf610-regs.h> +#include <mach/revision.h> + +#define VF610_CPUTYPE_VFx10 0x010 + +#define VF610_CPUTYPE_VF610 0x610 +#define VF610_CPUTYPE_VF600 0x600 +#define VF610_CPUTYPE_VF510 0x510 +#define VF610_CPUTYPE_VF500 0x500 + +#define VF610_ROM_VERSION_OFFSET 0x80 + +static inline int __vf610_cpu_type(void) +{ + void __iomem *mscm = IOMEM(VF610_MSCM_BASE_ADDR); + const u32 cpxcount = readl(mscm + VF610_MSCM_CPxCOUNT); + const u32 cpxcfg1 = readl(mscm + VF610_MSCM_CPxCFG1); + int cpu_type; + + cpu_type = cpxcount ? VF610_CPUTYPE_VF600 : VF610_CPUTYPE_VF500; + + return cpxcfg1 ? cpu_type | VF610_CPUTYPE_VFx10 : cpu_type; +} + +static inline int vf610_cpu_type(void) +{ + if (!cpu_is_vf610()) + return 0; + + return __vf610_cpu_type(); +} + +static inline int vf610_cpu_revision(void) +{ + if (!cpu_is_vf610()) + return IMX_CHIP_REV_UNKNOWN; + + /* + * There doesn't seem to be a documented way of retreiving + * silicon revision on VFxxx cpus, so we just report Mask ROM + * version instead + */ + return readl(VF610_ROM_VERSION_OFFSET) & 0xff; +} + +#endif -- 2.14.3 _______________________________________________ barebox mailing list barebox@xxxxxxxxxxxxxxxxxxx http://lists.infradead.org/mailman/listinfo/barebox