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 <drivers/marvell/cache_llc.h>
11 #include <drivers/marvell/mochi/ap_setup.h>
12 #include <lib/smccc.h>
13
14 #include <marvell_plat_priv.h>
15 #include <plat_marvell.h>
16
17 #include "comphy/phy-comphy-cp110.h"
18 #include <stdbool.h>
19
20 /* #define DEBUG_COMPHY */
21 #ifdef DEBUG_COMPHY
22 #define debug(format...) NOTICE(format)
23 #else
24 #define debug(format, arg...)
25 #endif
26
27 /* Comphy related FID's */
28 #define MV_SIP_COMPHY_POWER_ON 0x82000001
29 #define MV_SIP_COMPHY_POWER_OFF 0x82000002
30 #define MV_SIP_COMPHY_PLL_LOCK 0x82000003
31 #define MV_SIP_COMPHY_XFI_TRAIN 0x82000004
32 #define MV_SIP_COMPHY_DIG_RESET 0x82000005
33
34 /* Miscellaneous FID's' */
35 #define MV_SIP_DRAM_SIZE 0x82000010
36 #define MV_SIP_LLC_ENABLE 0x82000011
37 #define MV_SIP_PMU_IRQ_ENABLE 0x82000012
38 #define MV_SIP_PMU_IRQ_DISABLE 0x82000013
39
40 #define MAX_LANE_NR 6
41 #define MVEBU_COMPHY_OFFSET 0x441000
42 #define MVEBU_CP_BASE_MASK (~0xffffff)
43
44 /* This macro is used to identify COMPHY related calls from SMC function ID */
45 #define is_comphy_fid(fid) \
46 ((fid) >= MV_SIP_COMPHY_POWER_ON && (fid) <= MV_SIP_COMPHY_DIG_RESET)
47
is_cp_range_valid(u_register_t * addr)48 _Bool is_cp_range_valid(u_register_t *addr)
49 {
50 int cp_nr;
51
52 *addr &= MVEBU_CP_BASE_MASK;
53 for (cp_nr = 0; cp_nr < CP_NUM; cp_nr++) {
54 if (*addr == MVEBU_CP_REGS_BASE(cp_nr))
55 return true;
56 }
57
58 return false;
59 }
60
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)61 uintptr_t mrvl_sip_smc_handler(uint32_t smc_fid,
62 u_register_t x1,
63 u_register_t x2,
64 u_register_t x3,
65 u_register_t x4,
66 void *cookie,
67 void *handle,
68 u_register_t flags)
69 {
70 u_register_t ret;
71 int i;
72
73 debug("%s: got SMC (0x%x) x1 0x%lx, x2 0x%lx, x3 0x%lx\n",
74 __func__, smc_fid, x1, x2, x3);
75
76 if (is_comphy_fid(smc_fid)) {
77 /* validate address passed via x1 */
78 if (!is_cp_range_valid(&x1)) {
79 ERROR("%s: Wrong smc (0x%x) address: %lx\n",
80 __func__, smc_fid, x1);
81 SMC_RET1(handle, SMC_UNK);
82 }
83
84 x1 += MVEBU_COMPHY_OFFSET;
85
86 if (x2 >= MAX_LANE_NR) {
87 ERROR("%s: Wrong smc (0x%x) lane nr: %lx\n",
88 __func__, smc_fid, x2);
89 SMC_RET1(handle, SMC_UNK);
90 }
91 }
92
93 switch (smc_fid) {
94
95 /* Comphy related FID's */
96 case MV_SIP_COMPHY_POWER_ON:
97 /* x1: comphy_base, x2: comphy_index, x3: comphy_mode */
98 ret = mvebu_cp110_comphy_power_on(x1, x2, x3);
99 SMC_RET1(handle, ret);
100 case MV_SIP_COMPHY_POWER_OFF:
101 /* x1: comphy_base, x2: comphy_index */
102 ret = mvebu_cp110_comphy_power_off(x1, x2, x3);
103 SMC_RET1(handle, ret);
104 case MV_SIP_COMPHY_PLL_LOCK:
105 /* x1: comphy_base, x2: comphy_index */
106 ret = mvebu_cp110_comphy_is_pll_locked(x1, x2);
107 SMC_RET1(handle, ret);
108 case MV_SIP_COMPHY_XFI_TRAIN:
109 /* x1: comphy_base, x2: comphy_index */
110 ret = mvebu_cp110_comphy_xfi_rx_training(x1, x2);
111 SMC_RET1(handle, ret);
112 case MV_SIP_COMPHY_DIG_RESET:
113 /* x1: comphy_base, x2: comphy_index, x3: mode, x4: command */
114 ret = mvebu_cp110_comphy_digital_reset(x1, x2, x3, x4);
115 SMC_RET1(handle, ret);
116
117 /* Miscellaneous FID's' */
118 case MV_SIP_DRAM_SIZE:
119 ret = mvebu_get_dram_size(MVEBU_REGS_BASE);
120 SMC_RET1(handle, ret);
121 case MV_SIP_LLC_ENABLE:
122 for (i = 0; i < ap_get_count(); i++)
123 llc_runtime_enable(i);
124
125 SMC_RET1(handle, 0);
126 #ifdef MVEBU_PMU_IRQ_WA
127 case MV_SIP_PMU_IRQ_ENABLE:
128 mvebu_pmu_interrupt_enable();
129 SMC_RET1(handle, 0);
130 case MV_SIP_PMU_IRQ_DISABLE:
131 mvebu_pmu_interrupt_disable();
132 SMC_RET1(handle, 0);
133 #endif
134
135 default:
136 ERROR("%s: unhandled SMC (0x%x)\n", __func__, smc_fid);
137 SMC_RET1(handle, SMC_UNK);
138 }
139 }
140
141 /* Define a runtime service descriptor for fast SMC calls */
142 DECLARE_RT_SVC(
143 marvell_sip_svc,
144 OEN_SIP_START,
145 OEN_SIP_END,
146 SMC_TYPE_FAST,
147 NULL,
148 mrvl_sip_smc_handler
149 );
150