1 /* SPDX-License-Identifier: GPL-2.0-only */
2
3 #include <device/mmio.h>
4 #include <gpio.h>
5 #include <soc/addressmap.h>
6 #include <soc/regulator.h>
7 #include <soc/msdc.h>
8
9 #define MSDC0_BASE 0x11f60000
10 #define MSDC0_TOP_BASE 0x11f50000
11
12 #define MSDC0_DRV_MASK 0x3fffffff
13 #define MSDC1_DRV_MASK 0x3ffff000
14 #define MSDC0_DRV_VALUE 0x24924924
15 #define MSDC1_DRV_VALUE 0x1b6db000
16
17 #define MSDC1_GPIO_MODE0_BASE 0x10005360
18 #define MSDC1_GPIO_MODE0_MASK 0x77777000
19 #define MSDC1_GPIO_MODE0_VALUE 0x11111000
20
21 #define MSDC1_GPIO_MODE1_BASE 0x10005370
22 #define MSDC1_GPIO_MODE1_MASK 0x7
23 #define MSDC1_GPIO_MODE1_VALUE 0x1
24
mtk_msdc_configure_emmc(bool is_early_init)25 void mtk_msdc_configure_emmc(bool is_early_init)
26 {
27 void *gpio_base = (void *)IOCFG_TL_BASE;
28 int i;
29
30 const gpio_t emmc_pu_pin[] = {
31 GPIO(MSDC0_DAT0), GPIO(MSDC0_DAT1),
32 GPIO(MSDC0_DAT2), GPIO(MSDC0_DAT3),
33 GPIO(MSDC0_DAT4), GPIO(MSDC0_DAT5),
34 GPIO(MSDC0_DAT6), GPIO(MSDC0_DAT7),
35 GPIO(MSDC0_CMD), GPIO(MSDC0_RSTB),
36 };
37
38 const gpio_t emmc_pd_pin[] = {
39 GPIO(MSDC0_DSL), GPIO(MSDC0_CLK),
40 };
41
42 for (i = 0; i < ARRAY_SIZE(emmc_pu_pin); i++)
43 gpio_set_pull(emmc_pu_pin[i], GPIO_PULL_ENABLE, GPIO_PULL_UP);
44
45 for (i = 0; i < ARRAY_SIZE(emmc_pd_pin); i++)
46 gpio_set_pull(emmc_pd_pin[i], GPIO_PULL_ENABLE, GPIO_PULL_DOWN);
47
48 /* set eMMC cmd/dat/clk/ds/rstb pins driving to 10mA */
49 clrsetbits32(gpio_base, MSDC0_DRV_MASK, MSDC0_DRV_VALUE);
50
51 if (is_early_init)
52 mtk_emmc_early_init((void *)MSDC0_BASE, (void *)MSDC0_TOP_BASE);
53 }
54
mtk_msdc_configure_sdcard(void)55 void mtk_msdc_configure_sdcard(void)
56 {
57 void *gpio_base = (void *)IOCFG_RM_BASE;
58 void *gpio_mode0_base = (void *)MSDC1_GPIO_MODE0_BASE;
59 void *gpio_mode1_base = (void *)MSDC1_GPIO_MODE1_BASE;
60 int i;
61
62 const gpio_t sdcard_pu_pin[] = {
63 GPIO(MSDC1_DAT0), GPIO(MSDC1_DAT1),
64 GPIO(MSDC1_DAT2), GPIO(MSDC1_DAT3),
65 GPIO(MSDC1_CMD),
66 };
67
68 const gpio_t sdcard_pd_pin[] = {
69 GPIO(MSDC1_CLK),
70 };
71
72 for (i = 0; i < ARRAY_SIZE(sdcard_pu_pin); i++)
73 gpio_set_pull(sdcard_pu_pin[i], GPIO_PULL_ENABLE, GPIO_PULL_UP);
74
75 for (i = 0; i < ARRAY_SIZE(sdcard_pd_pin); i++)
76 gpio_set_pull(sdcard_pd_pin[i], GPIO_PULL_ENABLE, GPIO_PULL_DOWN);
77
78 /* set sdcard cmd/dat/clk pins driving to 8mA */
79 clrsetbits32(gpio_base, MSDC1_DRV_MASK, MSDC1_DRV_VALUE);
80
81 /* set sdcard dat2/dat0/dat3/cmd/clk pins to msdc1 mode */
82 clrsetbits32(gpio_mode0_base, MSDC1_GPIO_MODE0_MASK, MSDC1_GPIO_MODE0_VALUE);
83
84 /* set sdcard dat1 pin to msdc1 mode */
85 clrsetbits32(gpio_mode1_base, MSDC1_GPIO_MODE1_MASK, MSDC1_GPIO_MODE1_VALUE);
86
87 mainboard_enable_regulator(MTK_REGULATOR_VCC, true);
88 mainboard_enable_regulator(MTK_REGULATOR_VCCQ, true);
89 }
90