diff options
Diffstat (limited to 'arch/arm/cpu/armv8')
| -rw-r--r-- | arch/arm/cpu/armv8/zynqmp/cpu.c | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/arch/arm/cpu/armv8/zynqmp/cpu.c b/arch/arm/cpu/armv8/zynqmp/cpu.c index f7ed179..94ecf90 100644 --- a/arch/arm/cpu/armv8/zynqmp/cpu.c +++ b/arch/arm/cpu/armv8/zynqmp/cpu.c @@ -129,6 +129,41 @@ int invoke_smc(u32 pm_api_id, u32 arg0, u32 arg1, u32 arg2, u32 arg3, return regs.regs[0]; } +#define ZYNQMP_SIP_SVC_GET_API_VERSION 0xC2000001 + +#define ZYNQMP_PM_VERSION_MAJOR 0 +#define ZYNQMP_PM_VERSION_MINOR 3 +#define ZYNQMP_PM_VERSION_MAJOR_SHIFT 16 +#define ZYNQMP_PM_VERSION_MINOR_MASK 0xFFFF + +#define ZYNQMP_PM_VERSION \ + ((ZYNQMP_PM_VERSION_MAJOR << ZYNQMP_PM_VERSION_MAJOR_SHIFT) | \ + ZYNQMP_PM_VERSION_MINOR) + +#if defined(CONFIG_CLK_ZYNQMP) +void zynqmp_pmufw_version(void) +{ + int ret; + u32 ret_payload[PAYLOAD_ARG_CNT]; + u32 pm_api_version; + + ret = invoke_smc(ZYNQMP_SIP_SVC_GET_API_VERSION, 0, 0, 0, 0, + ret_payload); + pm_api_version = ret_payload[1]; + + if (ret) + panic("PMUFW is not found - Please load it!\n"); + + printf("PMUFW:\tv%d.%d\n", + pm_api_version >> ZYNQMP_PM_VERSION_MAJOR_SHIFT, + pm_api_version & ZYNQMP_PM_VERSION_MINOR_MASK); + + if (pm_api_version != ZYNQMP_PM_VERSION) + panic("PMUFW version error. Expected: v%d.%d\n", + ZYNQMP_PM_VERSION_MAJOR, ZYNQMP_PM_VERSION_MINOR); +} +#endif + int zynqmp_mmio_write(const u32 address, const u32 mask, const u32 value) |