| Message ID | 20240604142741.425307-7-lukas.funke-oss@weidmueller.com |
|---|---|
| State | Accepted |
| Delegated to: | Michal Simek |
| Headers | show |
| Series | Add eFuse access for ZynqMP | expand |
On 6/4/24 16:27, lukas.funke-oss@weidmueller.com wrote: > From: Lukas Funke <lukas.funke@weidmueller.com> > > Add functions to access efuses through PMU firmware > interface. > > Signed-off-by: Lukas Funke <lukas.funke@weidmueller.com> > --- > > (no changes since v1) > > drivers/firmware/firmware-zynqmp.c | 31 ++++++++++++++++++++++++++++++ > include/zynqmp_firmware.h | 2 ++ > 2 files changed, 33 insertions(+) > > diff --git a/drivers/firmware/firmware-zynqmp.c b/drivers/firmware/firmware-zynqmp.c > index dfad798a2e7..8e9687693dd 100644 > --- a/drivers/firmware/firmware-zynqmp.c > +++ b/drivers/firmware/firmware-zynqmp.c > @@ -211,6 +211,37 @@ int zynqmp_pm_feature(const u32 api_id) > return ret_payload[1] & FIRMWARE_VERSION_MASK; > } > > +int zynqmp_pm_get_chipid(u32 *idcode, u32 *version) > +{ > + u32 ret_payload[PAYLOAD_ARG_CNT]; > + int ret; > + > + if (!idcode || !version) > + return -EINVAL; > + > + ret = xilinx_pm_request(PM_GET_CHIPID, 0, 0, 0, 0, ret_payload); > + *idcode = ret_payload[1]; > + *version = ret_payload[2]; > + > + return ret; > +} > + > +int zynqmp_pm_efuse_access(const u64 address, u32 *out) > +{ > + u32 ret_payload[PAYLOAD_ARG_CNT]; > + int ret; > + > + if (!out) > + return -EINVAL; > + > + ret = xilinx_pm_request(PM_EFUSE_ACCESS, upper_32_bits(address), > + lower_32_bits(address), 0, 0, ret_payload); > + > + *out = ret_payload[1]; > + > + return ret; > +} > + > int zynqmp_pm_is_function_supported(const u32 api_id, const u32 id) > { > int ret; > diff --git a/include/zynqmp_firmware.h b/include/zynqmp_firmware.h > index 73198a6a6ea..7f18b4d59bf 100644 > --- a/include/zynqmp_firmware.h > +++ b/include/zynqmp_firmware.h > @@ -453,6 +453,8 @@ int xilinx_pm_request(u32 api_id, u32 arg0, u32 arg1, u32 arg2, > int zynqmp_pm_set_sd_config(u32 node, enum pm_sd_config_type config, u32 value); > int zynqmp_pm_set_gem_config(u32 node, enum pm_gem_config_type config, > u32 value); > +int zynqmp_pm_get_chipid(u32 *idcode, u32 *version); > +int zynqmp_pm_efuse_access(const u64 address, u32 *out); > int zynqmp_pm_is_function_supported(const u32 api_id, const u32 id); > int zynqmp_mmio_read(const u32 address, u32 *value); > int zynqmp_mmio_write(const u32 address, const u32 mask, const u32 value); Reviewed-by: Michal Simek <michal.simek@amd.com> Thanks, Michal
diff --git a/drivers/firmware/firmware-zynqmp.c b/drivers/firmware/firmware-zynqmp.c index dfad798a2e7..8e9687693dd 100644 --- a/drivers/firmware/firmware-zynqmp.c +++ b/drivers/firmware/firmware-zynqmp.c @@ -211,6 +211,37 @@ int zynqmp_pm_feature(const u32 api_id) return ret_payload[1] & FIRMWARE_VERSION_MASK; } +int zynqmp_pm_get_chipid(u32 *idcode, u32 *version) +{ + u32 ret_payload[PAYLOAD_ARG_CNT]; + int ret; + + if (!idcode || !version) + return -EINVAL; + + ret = xilinx_pm_request(PM_GET_CHIPID, 0, 0, 0, 0, ret_payload); + *idcode = ret_payload[1]; + *version = ret_payload[2]; + + return ret; +} + +int zynqmp_pm_efuse_access(const u64 address, u32 *out) +{ + u32 ret_payload[PAYLOAD_ARG_CNT]; + int ret; + + if (!out) + return -EINVAL; + + ret = xilinx_pm_request(PM_EFUSE_ACCESS, upper_32_bits(address), + lower_32_bits(address), 0, 0, ret_payload); + + *out = ret_payload[1]; + + return ret; +} + int zynqmp_pm_is_function_supported(const u32 api_id, const u32 id) { int ret; diff --git a/include/zynqmp_firmware.h b/include/zynqmp_firmware.h index 73198a6a6ea..7f18b4d59bf 100644 --- a/include/zynqmp_firmware.h +++ b/include/zynqmp_firmware.h @@ -453,6 +453,8 @@ int xilinx_pm_request(u32 api_id, u32 arg0, u32 arg1, u32 arg2, int zynqmp_pm_set_sd_config(u32 node, enum pm_sd_config_type config, u32 value); int zynqmp_pm_set_gem_config(u32 node, enum pm_gem_config_type config, u32 value); +int zynqmp_pm_get_chipid(u32 *idcode, u32 *version); +int zynqmp_pm_efuse_access(const u64 address, u32 *out); int zynqmp_pm_is_function_supported(const u32 api_id, const u32 id); int zynqmp_mmio_read(const u32 address, u32 *value); int zynqmp_mmio_write(const u32 address, const u32 mask, const u32 value);