1 /*
2 * Copyright (c) 2015, ARM Limited and Contributors. All rights reserved.
3 *
4 * SPDX-License-Identifier: BSD-3-Clause
5 */
6
7 #include <common/debug.h>
8 #include <common/runtime_svc.h>
9 #include <lib/mmio.h>
10
11 #include <crypt.h>
12 #include <mtcmos.h>
13 #include <mtk_sip_svc.h>
14 #include <plat_sip_calls.h>
15 #include <wdt.h>
16
17 /* Authorized secure register list */
18 enum {
19 SREG_HDMI_COLOR_EN = 0x14000904
20 };
21
22 static const uint32_t authorized_sreg[] = {
23 SREG_HDMI_COLOR_EN
24 };
25
26 #define authorized_sreg_cnt \
27 (sizeof(authorized_sreg) / sizeof(authorized_sreg[0]))
28
mt_sip_set_authorized_sreg(uint32_t sreg,uint32_t val)29 uint64_t mt_sip_set_authorized_sreg(uint32_t sreg, uint32_t val)
30 {
31 uint64_t i;
32
33 for (i = 0; i < authorized_sreg_cnt; i++) {
34 if (authorized_sreg[i] == sreg) {
35 mmio_write_32(sreg, val);
36 return MTK_SIP_E_SUCCESS;
37 }
38 }
39
40 return MTK_SIP_E_INVALID_PARAM;
41 }
42
mt_sip_pwr_on_mtcmos(uint32_t val)43 static uint64_t mt_sip_pwr_on_mtcmos(uint32_t val)
44 {
45 uint32_t ret;
46
47 ret = mtcmos_non_cpu_ctrl(1, val);
48 if (ret)
49 return MTK_SIP_E_INVALID_PARAM;
50 else
51 return MTK_SIP_E_SUCCESS;
52 }
53
mt_sip_pwr_off_mtcmos(uint32_t val)54 static uint64_t mt_sip_pwr_off_mtcmos(uint32_t val)
55 {
56 uint32_t ret;
57
58 ret = mtcmos_non_cpu_ctrl(0, val);
59 if (ret)
60 return MTK_SIP_E_INVALID_PARAM;
61 else
62 return MTK_SIP_E_SUCCESS;
63 }
64
mt_sip_pwr_mtcmos_support(void)65 static uint64_t mt_sip_pwr_mtcmos_support(void)
66 {
67 return MTK_SIP_E_SUCCESS;
68 }
69
mediatek_plat_sip_handler(uint32_t smc_fid,uint64_t x1,uint64_t x2,uint64_t x3,uint64_t x4,void * cookie,void * handle,uint64_t flags)70 uint64_t mediatek_plat_sip_handler(uint32_t smc_fid,
71 uint64_t x1,
72 uint64_t x2,
73 uint64_t x3,
74 uint64_t x4,
75 void *cookie,
76 void *handle,
77 uint64_t flags)
78 {
79 uint64_t ret;
80
81 switch (smc_fid) {
82 case MTK_SIP_PWR_ON_MTCMOS:
83 ret = mt_sip_pwr_on_mtcmos((uint32_t)x1);
84 SMC_RET1(handle, ret);
85
86 case MTK_SIP_PWR_OFF_MTCMOS:
87 ret = mt_sip_pwr_off_mtcmos((uint32_t)x1);
88 SMC_RET1(handle, ret);
89
90 case MTK_SIP_PWR_MTCMOS_SUPPORT:
91 ret = mt_sip_pwr_mtcmos_support();
92 SMC_RET1(handle, ret);
93
94 case MTK_SIP_SET_HDCP_KEY_EX:
95 ret = crypt_set_hdcp_key_ex(x1, x2, x3);
96 SMC_RET1(handle, ret);
97
98 case MTK_SIP_SET_HDCP_KEY_NUM:
99 ret = crypt_set_hdcp_key_num((uint32_t)x1);
100 SMC_RET1(handle, ret);
101
102 case MTK_SIP_CLR_HDCP_KEY:
103 ret = crypt_clear_hdcp_key();
104 SMC_RET1(handle, ret);
105
106 case MTK_SIP_SMC_WATCHDOG:
107 return wdt_smc_handler(x1, x2, handle);
108
109 default:
110 ERROR("%s: unhandled SMC (0x%x)\n", __func__, smc_fid);
111 break;
112 }
113
114 SMC_RET1(handle, SMC_UNK);
115 }
116