1 /*
2 * Copyright (C) 2018 Marvell International Ltd.
3 *
4 * SPDX-License-Identifier: BSD-3-Clause
5 * https://spdx.org/licenses
6 */
7
8 #include <common/debug.h>
9 #include <common/runtime_svc.h>
10 #include <lib/smccc.h>
11
12 #include <marvell_plat_priv.h>
13 #include <plat_marvell.h>
14
15 #include "comphy/phy-comphy-3700.h"
16
17 /* Comphy related FID's */
18 #define MV_SIP_COMPHY_POWER_ON 0x82000001
19 #define MV_SIP_COMPHY_POWER_OFF 0x82000002
20 #define MV_SIP_COMPHY_PLL_LOCK 0x82000003
21
22 /* Miscellaneous FID's' */
23 #define MV_SIP_DRAM_SIZE 0x82000010
24
25 /* This macro is used to identify COMPHY related calls from SMC function ID */
26 #define is_comphy_fid(fid) \
27 ((fid) >= MV_SIP_COMPHY_POWER_ON && (fid) <= MV_SIP_COMPHY_PLL_LOCK)
28
mrvl_sip_smc_handler(uint32_t smc_fid,u_register_t x1,u_register_t x2,u_register_t x3,u_register_t x4,void * cookie,void * handle,u_register_t flags)29 uintptr_t mrvl_sip_smc_handler(uint32_t smc_fid,
30 u_register_t x1,
31 u_register_t x2,
32 u_register_t x3,
33 u_register_t x4,
34 void *cookie,
35 void *handle,
36 u_register_t flags)
37 {
38 u_register_t ret;
39
40 VERBOSE("%s: got SMC (0x%x) x1 0x%lx, x2 0x%lx\n",
41 __func__, smc_fid, x1, x2);
42 if (is_comphy_fid(smc_fid)) {
43 if (x1 >= MAX_LANE_NR) {
44 ERROR("%s: Wrong smc (0x%x) lane nr: %lx\n",
45 __func__, smc_fid, x2);
46 SMC_RET1(handle, SMC_UNK);
47 }
48 }
49
50 switch (smc_fid) {
51 /* Comphy related FID's */
52 case MV_SIP_COMPHY_POWER_ON:
53 /* x1: comphy_index, x2: comphy_mode */
54 ret = mvebu_3700_comphy_power_on(x1, x2);
55 SMC_RET1(handle, ret);
56 case MV_SIP_COMPHY_POWER_OFF:
57 /* x1: comphy_index, x2: comphy_mode */
58 ret = mvebu_3700_comphy_power_off(x1, x2);
59 SMC_RET1(handle, ret);
60 case MV_SIP_COMPHY_PLL_LOCK:
61 /* x1: comphy_index, x2: comphy_mode */
62 ret = mvebu_3700_comphy_is_pll_locked(x1, x2);
63 SMC_RET1(handle, ret);
64 /* Miscellaneous FID's' */
65 case MV_SIP_DRAM_SIZE:
66 /* x1: ap_base_addr */
67 ret = mvebu_get_dram_size(MVEBU_REGS_BASE);
68 SMC_RET1(handle, ret);
69
70 default:
71 ERROR("%s: unhandled SMC (0x%x)\n", __func__, smc_fid);
72 SMC_RET1(handle, SMC_UNK);
73 }
74 }
75
76 /* Define a runtime service descriptor for fast SMC calls */
77 DECLARE_RT_SVC(
78 marvell_sip_svc,
79 OEN_SIP_START,
80 OEN_SIP_END,
81 SMC_TYPE_FAST,
82 NULL,
83 mrvl_sip_smc_handler
84 );
85