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author | Sascha Hauer <s.hauer@pengutronix.de> | 2018-05-09 14:17:05 +0200 |
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committer | Sascha Hauer <s.hauer@pengutronix.de> | 2018-05-09 14:17:05 +0200 |
commit | a126440dd736cfbd60ddbdf9e2a9be78abfff4fe (patch) | |
tree | 554c55c784b5464f94b5607319bae3648eea9655 /arch/arm/mach-imx/include/mach/vf610.h | |
parent | 93c5d36b6520b8caed7cedcc5e4f18c8c68dc25c (diff) | |
parent | 046ac573e07cb10987230f281e5c13d32a2a9119 (diff) | |
download | barebox-a126440dd736cfbd60ddbdf9e2a9be78abfff4fe.tar.gz barebox-a126440dd736cfbd60ddbdf9e2a9be78abfff4fe.tar.xz |
Merge branch 'for-next/imx-reset-reason'
Diffstat (limited to 'arch/arm/mach-imx/include/mach/vf610.h')
-rw-r--r-- | arch/arm/mach-imx/include/mach/vf610.h | 51 |
1 files changed, 51 insertions, 0 deletions
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 0000000000..6d00d2e457 --- /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 |