1 /* SPDX-License-Identifier: GPL-2.0-only */
2
3 /*
4 * This file is created based on MT8186 Functional Specification
5 * Chapter number: 5.7
6 */
7
8 #include <device/mmio.h>
9 #include <gpio.h>
10 #include <soc/addressmap.h>
11 #include <soc/regulator.h>
12 #include <soc/msdc.h>
13
14 DEFINE_BITFIELD(MSDC0_DRV, 29, 0)
15 DEFINE_BITFIELD(MSDC1_DRV, 23, 6)
16 DEFINE_BITFIELD(MSDC1_GPIO_MODE0_0, 18, 16)
17 DEFINE_BITFIELD(MSDC1_GPIO_MODE0_1, 22, 20)
18 DEFINE_BITFIELD(MSDC1_GPIO_MODE0_2, 26, 24)
19 DEFINE_BITFIELD(MSDC1_GPIO_MODE0_3, 30, 28)
20 DEFINE_BITFIELD(MSDC1_GPIO_MODE1_0, 2, 0)
21 DEFINE_BITFIELD(MSDC1_GPIO_MODE1_1, 6, 4)
22
23 #define MSDC0_BASE 0x11230000
24 #define MSDC0_TOP_BASE 0x11cd0000
25
26 #define MSDC0_DRV_VALUE 0x1b6db6db
27 #define MSDC1_DRV_VALUE 0x1b6db
28 #define MSDC1_GPIO_MODE0_VALUE 0x1
29 #define MSDC1_GPIO_MODE1_VALUE 0x1
30
31 enum {
32 MSDC1_GPIO_MODE0_BASE = 0x100053a0,
33 MSDC1_GPIO_MODE1_BASE = 0x100053b0,
34 };
35
mtk_msdc_configure_emmc(bool is_early_init)36 void mtk_msdc_configure_emmc(bool is_early_init)
37 {
38 void *gpio_base = (void *)IOCFG_LT_BASE;
39 int i;
40
41 const gpio_t emmc_pu_pin[] = {
42 GPIO(MSDC0_DAT0), GPIO(MSDC0_DAT1),
43 GPIO(MSDC0_DAT2), GPIO(MSDC0_DAT3),
44 GPIO(MSDC0_DAT4), GPIO(MSDC0_DAT5),
45 GPIO(MSDC0_DAT6), GPIO(MSDC0_DAT7),
46 GPIO(MSDC0_CMD), GPIO(MSDC0_RSTB),
47 };
48
49 const gpio_t emmc_pd_pin[] = {
50 GPIO(MSDC0_DSL), GPIO(MSDC0_CLK),
51 };
52
53 for (i = 0; i < ARRAY_SIZE(emmc_pu_pin); i++)
54 gpio_set_pull(emmc_pu_pin[i], GPIO_PULL_ENABLE, GPIO_PULL_UP);
55
56 for (i = 0; i < ARRAY_SIZE(emmc_pd_pin); i++)
57 gpio_set_pull(emmc_pd_pin[i], GPIO_PULL_ENABLE, GPIO_PULL_DOWN);
58
59 /* set eMMC cmd/dat/clk pins driving to 8mA */
60 SET32_BITFIELDS(gpio_base, MSDC0_DRV, MSDC0_DRV_VALUE);
61
62 if (is_early_init)
63 mtk_emmc_early_init((void *)MSDC0_BASE, (void *)MSDC0_TOP_BASE);
64 }
65
mtk_msdc_configure_sdcard(void)66 void mtk_msdc_configure_sdcard(void)
67 {
68 void *gpio_base = (void *)IOCFG_LB_BASE;
69 void *gpio_mode0_base = (void *)MSDC1_GPIO_MODE0_BASE;
70 void *gpio_mode1_base = (void *)MSDC1_GPIO_MODE1_BASE;
71 int i;
72
73 const gpio_t sdcard_pu_pin[] = {
74 GPIO(MSDC1_DAT0), GPIO(MSDC1_DAT1),
75 GPIO(MSDC1_DAT2), GPIO(MSDC1_DAT3),
76 GPIO(MSDC1_CMD),
77 };
78
79 const gpio_t sdcard_pd_pin[] = {
80 GPIO(MSDC1_CLK),
81 };
82
83 for (i = 0; i < ARRAY_SIZE(sdcard_pu_pin); i++)
84 gpio_set_pull(sdcard_pu_pin[i], GPIO_PULL_ENABLE, GPIO_PULL_UP);
85
86 for (i = 0; i < ARRAY_SIZE(sdcard_pd_pin); i++)
87 gpio_set_pull(sdcard_pd_pin[i], GPIO_PULL_ENABLE, GPIO_PULL_DOWN);
88
89 /* set sdcard cmd/dat/clk pins driving to 8mA */
90 SET32_BITFIELDS(gpio_base, MSDC1_DRV, MSDC1_DRV_VALUE);
91
92 /* set sdcard dat2/dat0/dat3/cmd/clk pins to msdc1 mode */
93 SET32_BITFIELDS(gpio_mode0_base,
94 MSDC1_GPIO_MODE0_0, MSDC1_GPIO_MODE0_VALUE,
95 MSDC1_GPIO_MODE0_1, MSDC1_GPIO_MODE0_VALUE,
96 MSDC1_GPIO_MODE0_2, MSDC1_GPIO_MODE0_VALUE,
97 MSDC1_GPIO_MODE0_3, MSDC1_GPIO_MODE0_VALUE);
98
99 /* set sdcard dat1 pin to msdc1 mode */
100 SET32_BITFIELDS(gpio_mode1_base,
101 MSDC1_GPIO_MODE1_0, MSDC1_GPIO_MODE1_VALUE,
102 MSDC1_GPIO_MODE1_1, MSDC1_GPIO_MODE1_VALUE);
103
104 /* enable SDCard power */
105 mainboard_set_regulator_voltage(MTK_REGULATOR_VMCH, 3300000);
106 mainboard_set_regulator_voltage(MTK_REGULATOR_VMC, 3300000);
107 }
108