1 /******************************************************************************
2 *
3 * Copyright (C) 2022-2023 Maxim Integrated Products, Inc. (now owned by
4 * Analog Devices, Inc.),
5 * Copyright (C) 2023-2024 Analog Devices, Inc.
6 *
7 * Licensed under the Apache License, Version 2.0 (the "License");
8 * you may not use this file except in compliance with the License.
9 * You may obtain a copy of the License at
10 *
11 * http://www.apache.org/licenses/LICENSE-2.0
12 *
13 * Unless required by applicable law or agreed to in writing, software
14 * distributed under the License is distributed on an "AS IS" BASIS,
15 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
16 * See the License for the specific language governing permissions and
17 * limitations under the License.
18 *
19 ******************************************************************************/
20
21 /* **** Includes **** */
22 #include <string.h>
23 #include "mxc_device.h"
24 #include "mxc_assert.h"
25 #include "mxc_sys.h"
26 #include "sdhc.h"
27 #include "sdhc_reva.h"
28
29 /* **** Definitions **** */
30
31 /* **** Globals **** */
32
33 /* ************************************************************************** */
MXC_SDHC_Set_Clock_Config(unsigned int clk_div)34 void MXC_SDHC_Set_Clock_Config(unsigned int clk_div)
35 {
36 MXC_SDHC_RevA_Set_Clock_Config((mxc_sdhc_reva_regs_t *)MXC_SDHC, clk_div);
37 }
38
39 /* ************************************************************************** */
MXC_SDHC_Get_Clock_Config(void)40 unsigned int MXC_SDHC_Get_Clock_Config(void)
41 {
42 return MXC_SDHC_RevA_Get_Clock_Config((mxc_sdhc_reva_regs_t *)MXC_SDHC);
43 }
44
45 /* ************************************************************************** */
MXC_SDHC_Init(const mxc_sdhc_cfg_t * cfg)46 int MXC_SDHC_Init(const mxc_sdhc_cfg_t *cfg)
47 {
48 mxc_gpio_regs_t *gpio = gpio_cfg_sdhc.port;
49
50 // Startup the HIRC96M clock if it's not on already
51 if (!(MXC_GCR->clkctrl & MXC_F_GCR_CLKCTRL_IPO_EN)) {
52 MXC_GCR->clkctrl |= MXC_F_GCR_CLKCTRL_IPO_EN;
53
54 if (MXC_SYS_Clock_Timeout(MXC_F_GCR_CLKCTRL_IPO_RDY) != E_NO_ERROR) {
55 return E_TIME_OUT;
56 }
57 }
58
59 MXC_SYS_ClockEnable(MXC_SYS_PERIPH_CLOCK_SDHC);
60
61 gpio->ds |= gpio_cfg_sdhc.mask;
62
63 MXC_GPIO_Config(&gpio_cfg_sdhc);
64 return MXC_SDHC_RevA_Init((mxc_sdhc_reva_regs_t *)MXC_SDHC, cfg);
65 }
66
MXC_SDHC_Get_Input_Clock_Freq(void)67 unsigned int MXC_SDHC_Get_Input_Clock_Freq(void)
68 {
69 // TODO(JC): Confirm this is the scheme used by ME13
70 if (MXC_GCR->pclkdiv & MXC_F_GCR_PCLKDIV_SDHCFRQ) {
71 return SystemCoreClock >> 2; // Div by 4
72 } else {
73 return SystemCoreClock >> 1; // Div by 2
74 }
75 }
76
77 /* ************************************************************************** */
MXC_SDHC_PowerUp(void)78 void MXC_SDHC_PowerUp(void)
79 {
80 MXC_SDHC_RevA_PowerUp((mxc_sdhc_reva_regs_t *)MXC_SDHC);
81 }
82
83 /* ************************************************************************** */
MXC_SDHC_PowerDown(void)84 void MXC_SDHC_PowerDown(void)
85 {
86 MXC_SDHC_RevA_PowerDown((mxc_sdhc_reva_regs_t *)MXC_SDHC);
87 }
88
89 /* ************************************************************************** */
MXC_SDHC_Shutdown(void)90 int MXC_SDHC_Shutdown(void)
91 {
92 MXC_SYS_ClockDisable(MXC_SYS_PERIPH_CLOCK_SDHC);
93 return MXC_SDHC_RevA_Shutdown((mxc_sdhc_reva_regs_t *)MXC_SDHC);
94 }
95
96 /* ************************************************************************** */
MXC_SDHC_SendCommand(mxc_sdhc_cmd_cfg_t * sd_cmd_cfg)97 int MXC_SDHC_SendCommand(mxc_sdhc_cmd_cfg_t *sd_cmd_cfg)
98 {
99 return MXC_SDHC_RevA_SendCommand((mxc_sdhc_reva_regs_t *)MXC_SDHC, sd_cmd_cfg);
100 }
101
102 /* ************************************************************************** */
MXC_SDHC_SendCommandAsync(mxc_sdhc_cmd_cfg_t * sd_cmd_cfg)103 int MXC_SDHC_SendCommandAsync(mxc_sdhc_cmd_cfg_t *sd_cmd_cfg)
104 {
105 return MXC_SDHC_RevA_SendCommandAsync((mxc_sdhc_reva_regs_t *)MXC_SDHC, sd_cmd_cfg);
106 }
107
108 /* ************************************************************************** */
MXC_SDHC_Handler(void)109 void MXC_SDHC_Handler(void)
110 {
111 MXC_SDHC_RevA_Handler((mxc_sdhc_reva_regs_t *)MXC_SDHC);
112 }
113
114 /* ************************************************************************** */
MXC_SDHC_ClearFlags(uint32_t mask)115 void MXC_SDHC_ClearFlags(uint32_t mask)
116 {
117 MXC_SDHC_RevA_ClearFlags((mxc_sdhc_reva_regs_t *)MXC_SDHC, mask);
118 }
119
120 /* ************************************************************************** */
MXC_SDHC_GetFlags(void)121 unsigned MXC_SDHC_GetFlags(void)
122 {
123 return MXC_SDHC_RevA_GetFlags((mxc_sdhc_reva_regs_t *)MXC_SDHC);
124 }
125
126 /* ************************************************************************** */
MXC_SDHC_Card_Inserted(void)127 int MXC_SDHC_Card_Inserted(void)
128 {
129 return MXC_SDHC_RevA_Card_Inserted((mxc_sdhc_reva_regs_t *)MXC_SDHC);
130 }
131
132 /* ************************************************************************** */
MXC_SDHC_Reset(void)133 void MXC_SDHC_Reset(void)
134 {
135 MXC_SDHC_RevA_Reset((mxc_sdhc_reva_regs_t *)MXC_SDHC);
136 }
137
138 /* ************************************************************************** */
MXC_SDHC_Reset_CMD_DAT(void)139 void MXC_SDHC_Reset_CMD_DAT(void)
140 {
141 MXC_SDHC_RevA_Reset_CMD_DAT((mxc_sdhc_reva_regs_t *)MXC_SDHC);
142 }
143
144 /* ************************************************************************** */
MXC_SDHC_Card_Busy(void)145 int MXC_SDHC_Card_Busy(void)
146 {
147 return MXC_SDHC_RevA_Card_Busy((mxc_sdhc_reva_regs_t *)MXC_SDHC);
148 }
149
150 /* ************************************************************************** */
MXC_SDHC_Get_Host_Cn_1(void)151 unsigned int MXC_SDHC_Get_Host_Cn_1(void)
152 {
153 return MXC_SDHC_RevA_Get_Host_Cn_1((mxc_sdhc_reva_regs_t *)MXC_SDHC);
154 }
155
156 /* ************************************************************************** */
MXC_SDHC_Get_Response32(void)157 uint32_t MXC_SDHC_Get_Response32(void)
158 {
159 return MXC_SDHC_RevA_Get_Response32((mxc_sdhc_reva_regs_t *)MXC_SDHC);
160 }
161
162 /* ************************************************************************** */
MXC_SDHC_Get_Response32_Auto(void)163 uint32_t MXC_SDHC_Get_Response32_Auto(void)
164 {
165 return MXC_SDHC_RevA_Get_Response32_Auto((mxc_sdhc_reva_regs_t *)MXC_SDHC);
166 }
167
168 /* ************************************************************************** */
MXC_SDHC_Get_Response128(unsigned char * response)169 void MXC_SDHC_Get_Response128(unsigned char *response)
170 {
171 MXC_SDHC_RevA_Get_Response128((mxc_sdhc_reva_regs_t *)MXC_SDHC, response);
172 }
173
