xref: /openbmc/linux/drivers/firmware/qcom_scm.h (revision 3213486f)
1 /* Copyright (c) 2010-2015, The Linux Foundation. All rights reserved.
2  *
3  * This program is free software; you can redistribute it and/or modify
4  * it under the terms of the GNU General Public License version 2 and
5  * only version 2 as published by the Free Software Foundation.
6  *
7  * This program is distributed in the hope that it will be useful,
8  * but WITHOUT ANY WARRANTY; without even the implied warranty of
9  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
10  * GNU General Public License for more details.
11  */
12 #ifndef __QCOM_SCM_INT_H
13 #define __QCOM_SCM_INT_H
14 
15 #define QCOM_SCM_SVC_BOOT		0x1
16 #define QCOM_SCM_BOOT_ADDR		0x1
17 #define QCOM_SCM_SET_DLOAD_MODE		0x10
18 #define QCOM_SCM_BOOT_ADDR_MC		0x11
19 #define QCOM_SCM_SET_REMOTE_STATE	0xa
20 extern int __qcom_scm_set_remote_state(struct device *dev, u32 state, u32 id);
21 extern int __qcom_scm_set_dload_mode(struct device *dev, bool enable);
22 
23 #define QCOM_SCM_FLAG_HLOS		0x01
24 #define QCOM_SCM_FLAG_COLDBOOT_MC	0x02
25 #define QCOM_SCM_FLAG_WARMBOOT_MC	0x04
26 extern int __qcom_scm_set_warm_boot_addr(struct device *dev, void *entry,
27 		const cpumask_t *cpus);
28 extern int __qcom_scm_set_cold_boot_addr(void *entry, const cpumask_t *cpus);
29 
30 #define QCOM_SCM_CMD_TERMINATE_PC	0x2
31 #define QCOM_SCM_FLUSH_FLAG_MASK	0x3
32 #define QCOM_SCM_CMD_CORE_HOTPLUGGED	0x10
33 extern void __qcom_scm_cpu_power_down(u32 flags);
34 
35 #define QCOM_SCM_SVC_IO			0x5
36 #define QCOM_SCM_IO_READ		0x1
37 #define QCOM_SCM_IO_WRITE		0x2
38 extern int __qcom_scm_io_readl(struct device *dev, phys_addr_t addr, unsigned int *val);
39 extern int __qcom_scm_io_writel(struct device *dev, phys_addr_t addr, unsigned int val);
40 
41 #define QCOM_SCM_SVC_INFO		0x6
42 #define QCOM_IS_CALL_AVAIL_CMD		0x1
43 extern int __qcom_scm_is_call_available(struct device *dev, u32 svc_id,
44 		u32 cmd_id);
45 
46 #define QCOM_SCM_SVC_HDCP		0x11
47 #define QCOM_SCM_CMD_HDCP		0x01
48 extern int __qcom_scm_hdcp_req(struct device *dev,
49 		struct qcom_scm_hdcp_req *req, u32 req_cnt, u32 *resp);
50 
51 extern void __qcom_scm_init(void);
52 
53 #define QCOM_SCM_SVC_PIL		0x2
54 #define QCOM_SCM_PAS_INIT_IMAGE_CMD	0x1
55 #define QCOM_SCM_PAS_MEM_SETUP_CMD	0x2
56 #define QCOM_SCM_PAS_AUTH_AND_RESET_CMD	0x5
57 #define QCOM_SCM_PAS_SHUTDOWN_CMD	0x6
58 #define QCOM_SCM_PAS_IS_SUPPORTED_CMD	0x7
59 #define QCOM_SCM_PAS_MSS_RESET		0xa
60 extern bool __qcom_scm_pas_supported(struct device *dev, u32 peripheral);
61 extern int  __qcom_scm_pas_init_image(struct device *dev, u32 peripheral,
62 		dma_addr_t metadata_phys);
63 extern int  __qcom_scm_pas_mem_setup(struct device *dev, u32 peripheral,
64 		phys_addr_t addr, phys_addr_t size);
65 extern int  __qcom_scm_pas_auth_and_reset(struct device *dev, u32 peripheral);
66 extern int  __qcom_scm_pas_shutdown(struct device *dev, u32 peripheral);
67 extern int  __qcom_scm_pas_mss_reset(struct device *dev, bool reset);
68 
69 /* common error codes */
70 #define QCOM_SCM_V2_EBUSY	-12
71 #define QCOM_SCM_ENOMEM		-5
72 #define QCOM_SCM_EOPNOTSUPP	-4
73 #define QCOM_SCM_EINVAL_ADDR	-3
74 #define QCOM_SCM_EINVAL_ARG	-2
75 #define QCOM_SCM_ERROR		-1
76 #define QCOM_SCM_INTERRUPTED	1
77 
78 static inline int qcom_scm_remap_error(int err)
79 {
80 	switch (err) {
81 	case QCOM_SCM_ERROR:
82 		return -EIO;
83 	case QCOM_SCM_EINVAL_ADDR:
84 	case QCOM_SCM_EINVAL_ARG:
85 		return -EINVAL;
86 	case QCOM_SCM_EOPNOTSUPP:
87 		return -EOPNOTSUPP;
88 	case QCOM_SCM_ENOMEM:
89 		return -ENOMEM;
90 	case QCOM_SCM_V2_EBUSY:
91 		return -EBUSY;
92 	}
93 	return -EINVAL;
94 }
95 
96 #define QCOM_SCM_SVC_MP			0xc
97 #define QCOM_SCM_RESTORE_SEC_CFG	2
98 extern int __qcom_scm_restore_sec_cfg(struct device *dev, u32 device_id,
99 				      u32 spare);
100 #define QCOM_SCM_IOMMU_SECURE_PTBL_SIZE	3
101 #define QCOM_SCM_IOMMU_SECURE_PTBL_INIT	4
102 extern int __qcom_scm_iommu_secure_ptbl_size(struct device *dev, u32 spare,
103 					     size_t *size);
104 extern int __qcom_scm_iommu_secure_ptbl_init(struct device *dev, u64 addr,
105 					     u32 size, u32 spare);
106 #define QCOM_MEM_PROT_ASSIGN_ID	0x16
107 extern int  __qcom_scm_assign_mem(struct device *dev,
108 				  phys_addr_t mem_region, size_t mem_sz,
109 				  phys_addr_t src, size_t src_sz,
110 				  phys_addr_t dest, size_t dest_sz);
111 
112 #endif
113