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https://github.com/edk2-porting/linux-next.git
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dd4fe5b292
PAS command 10 is used to assert and deassert the MSS reset via TrustZone, expose this as a reset-controller to mimic the direct access case. Cc: Stephen Boyd <sboyd@codeaurora.org> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org> Acked-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Reviewed-by: Stephen Boyd <sboyd@codeaurora.org> Signed-off-by: Andy Gross <andy.gross@linaro.org>
87 lines
2.8 KiB
C
87 lines
2.8 KiB
C
/* Copyright (c) 2010-2015, The Linux Foundation. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 and
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* only version 2 as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#ifndef __QCOM_SCM_INT_H
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#define __QCOM_SCM_INT_H
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#define QCOM_SCM_SVC_BOOT 0x1
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#define QCOM_SCM_BOOT_ADDR 0x1
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#define QCOM_SCM_BOOT_ADDR_MC 0x11
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#define QCOM_SCM_FLAG_HLOS 0x01
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#define QCOM_SCM_FLAG_COLDBOOT_MC 0x02
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#define QCOM_SCM_FLAG_WARMBOOT_MC 0x04
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extern int __qcom_scm_set_warm_boot_addr(struct device *dev, void *entry,
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const cpumask_t *cpus);
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extern int __qcom_scm_set_cold_boot_addr(void *entry, const cpumask_t *cpus);
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#define QCOM_SCM_CMD_TERMINATE_PC 0x2
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#define QCOM_SCM_FLUSH_FLAG_MASK 0x3
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#define QCOM_SCM_CMD_CORE_HOTPLUGGED 0x10
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extern void __qcom_scm_cpu_power_down(u32 flags);
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#define QCOM_SCM_SVC_INFO 0x6
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#define QCOM_IS_CALL_AVAIL_CMD 0x1
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extern int __qcom_scm_is_call_available(struct device *dev, u32 svc_id,
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u32 cmd_id);
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#define QCOM_SCM_SVC_HDCP 0x11
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#define QCOM_SCM_CMD_HDCP 0x01
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extern int __qcom_scm_hdcp_req(struct device *dev,
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struct qcom_scm_hdcp_req *req, u32 req_cnt, u32 *resp);
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extern void __qcom_scm_init(void);
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#define QCOM_SCM_SVC_PIL 0x2
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#define QCOM_SCM_PAS_INIT_IMAGE_CMD 0x1
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#define QCOM_SCM_PAS_MEM_SETUP_CMD 0x2
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#define QCOM_SCM_PAS_AUTH_AND_RESET_CMD 0x5
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#define QCOM_SCM_PAS_SHUTDOWN_CMD 0x6
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#define QCOM_SCM_PAS_IS_SUPPORTED_CMD 0x7
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#define QCOM_SCM_PAS_MSS_RESET 0xa
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extern bool __qcom_scm_pas_supported(struct device *dev, u32 peripheral);
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extern int __qcom_scm_pas_init_image(struct device *dev, u32 peripheral,
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dma_addr_t metadata_phys);
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extern int __qcom_scm_pas_mem_setup(struct device *dev, u32 peripheral,
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phys_addr_t addr, phys_addr_t size);
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extern int __qcom_scm_pas_auth_and_reset(struct device *dev, u32 peripheral);
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extern int __qcom_scm_pas_shutdown(struct device *dev, u32 peripheral);
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extern int __qcom_scm_pas_mss_reset(struct device *dev, bool reset);
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/* common error codes */
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#define QCOM_SCM_V2_EBUSY -12
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#define QCOM_SCM_ENOMEM -5
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#define QCOM_SCM_EOPNOTSUPP -4
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#define QCOM_SCM_EINVAL_ADDR -3
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#define QCOM_SCM_EINVAL_ARG -2
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#define QCOM_SCM_ERROR -1
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#define QCOM_SCM_INTERRUPTED 1
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static inline int qcom_scm_remap_error(int err)
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{
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switch (err) {
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case QCOM_SCM_ERROR:
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return -EIO;
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case QCOM_SCM_EINVAL_ADDR:
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case QCOM_SCM_EINVAL_ARG:
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return -EINVAL;
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case QCOM_SCM_EOPNOTSUPP:
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return -EOPNOTSUPP;
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case QCOM_SCM_ENOMEM:
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return -ENOMEM;
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case QCOM_SCM_V2_EBUSY:
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return -EBUSY;
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}
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return -EINVAL;
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}
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#endif
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