diff options
| author | Anson Huang <Anson.Huang@nxp.com> | 2019-01-18 10:27:48 +0800 |
|---|---|---|
| committer | Anson Huang <Anson.Huang@nxp.com> | 2019-01-18 11:23:00 +0800 |
| commit | dbfa45e8163336daa2b1b8a76fcc74976a6aa6d7 (patch) | |
| tree | 63e00eb4ae1a782e9894ad5bffcc25ddc04a7aef /plat/imx/common/imx_sip_handler.c | |
| parent | 936840f143ca6eba09a78367afe047136c33a4ee (diff) | |
imx: add i.MX8 SoCs OTP SIP(silicon provider) service support
For NXP's i.MX8 SoCs with system controller inside, OTP is
maintained by SCFW, Linux needs to call SMC to trap to TF-A
for OTP read/write etc. operations by calling SCFW API.
This patch adds OTP SIP service support.
Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Diffstat (limited to 'plat/imx/common/imx_sip_handler.c')
| -rw-r--r-- | plat/imx/common/imx_sip_handler.c | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/plat/imx/common/imx_sip_handler.c b/plat/imx/common/imx_sip_handler.c index 2e50cf30..a096a060 100644 --- a/plat/imx/common/imx_sip_handler.c +++ b/plat/imx/common/imx_sip_handler.c @@ -102,3 +102,29 @@ int imx_wakeup_src_handler(uint32_t smc_fid, return SMC_OK; } + +int imx_otp_handler(uint32_t smc_fid, + void *handle, + u_register_t x1, + u_register_t x2) +{ + int ret; + uint32_t fuse; + + switch (smc_fid) { + case IMX_SIP_OTP_READ: + ret = sc_misc_otp_fuse_read(ipc_handle, x1, &fuse); + SMC_RET2(handle, ret, fuse); + break; + case IMX_SIP_OTP_WRITE: + ret = sc_misc_otp_fuse_write(ipc_handle, x1, x2); + SMC_RET1(handle, ret); + break; + default: + ret = SMC_UNK; + SMC_RET1(handle, ret); + break; + } + + return ret; +} |