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https://github.com/ARM-software/arm-trusted-firmware.git
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869eebc39d
For NXP's i.MX8 SoCs with system controller inside, thermal sensors are maintained by SCFW, Linux needs to call SMC to trap to TF-A for thermal alarm operation etc. by calling SCFW API. This patch adds temperature alarm SIP service support. Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
58 lines
1.3 KiB
C
58 lines
1.3 KiB
C
/*
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* Copyright (c) 2015-2019, ARM Limited and Contributors. All rights reserved.
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*
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* SPDX-License-Identifier: BSD-3-Clause
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*/
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#include <stdint.h>
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#include <common/debug.h>
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#include <common/runtime_svc.h>
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#include <lib/pmf/pmf.h>
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#include <tools_share/uuid.h>
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#include <imx_sip_svc.h>
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static int32_t imx_sip_setup(void)
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{
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return 0;
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}
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static uintptr_t imx_sip_handler(unsigned int smc_fid,
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u_register_t x1,
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u_register_t x2,
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u_register_t x3,
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u_register_t x4,
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void *cookie,
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void *handle,
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u_register_t flags)
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{
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switch (smc_fid) {
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#if (defined(PLAT_IMX8QM) || defined(PLAT_IMX8QX))
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case IMX_SIP_SRTC:
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return imx_srtc_handler(smc_fid, handle, x1, x2, x3, x4);
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case IMX_SIP_CPUFREQ:
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SMC_RET1(handle, imx_cpufreq_handler(smc_fid, x1, x2, x3));
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break;
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case IMX_SIP_WAKEUP_SRC:
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SMC_RET1(handle, imx_wakeup_src_handler(smc_fid, x1, x2, x3));
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case IMX_SIP_OTP_READ:
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case IMX_SIP_OTP_WRITE:
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return imx_otp_handler(smc_fid, handle, x1, x2);
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case IMX_SIP_MISC_SET_TEMP:
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SMC_RET1(handle, imx_misc_set_temp_handler(smc_fid, x1, x2, x3, x4));
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#endif
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default:
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WARN("Unimplemented i.MX SiP Service Call: 0x%x\n", smc_fid);
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SMC_RET1(handle, SMC_UNK);
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break;
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}
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}
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/* Define a runtime service descriptor for fast SMC calls */
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DECLARE_RT_SVC(
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imx_sip_svc,
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OEN_SIP_START,
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OEN_SIP_END,
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SMC_TYPE_FAST,
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imx_sip_setup,
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imx_sip_handler
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);
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