1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3 * Amazon Kindle Fire (first generation) codename kc1 config
4 *
5 * Copyright (C) 2016 Paul Kocialkowski <contact@paulk.fr>
6 */
7
8 #include <config.h>
9 #include <common.h>
10 #include <env.h>
11 #include <linux/ctype.h>
12 #include <linux/usb/musb.h>
13 #include <asm/omap_musb.h>
14 #include <asm/arch/sys_proto.h>
15 #include <asm/arch/mmc_host_def.h>
16 #include <asm/gpio.h>
17 #include <asm/emif.h>
18 #include <twl6030.h>
19 #include "kc1.h"
20 #include <asm/mach-types.h>
21
22 DECLARE_GLOBAL_DATA_PTR;
23
24 const struct omap_sysinfo sysinfo = {
25 .board_string = "kc1"
26 };
27
28 static struct musb_hdrc_config musb_config = {
29 .multipoint = 1,
30 .dyn_fifo = 1,
31 .num_eps = 16,
32 .ram_bits = 12
33 };
34
35 static struct omap_musb_board_data musb_board_data = {
36 .interface_type = MUSB_INTERFACE_UTMI,
37 };
38
39 static struct musb_hdrc_platform_data musb_platform_data = {
40 .mode = MUSB_PERIPHERAL,
41 .config = &musb_config,
42 .power = 100,
43 .platform_ops = &omap2430_ops,
44 .board_data = &musb_board_data,
45 };
46
47
set_muxconf_regs(void)48 void set_muxconf_regs(void)
49 {
50 do_set_mux((*ctrl)->control_padconf_core_base, core_padconf_array,
51 sizeof(core_padconf_array) / sizeof(struct pad_conf_entry));
52 }
53
emif_get_device_details(u32 emif_nr,u8 cs,struct lpddr2_device_details * lpddr2_dev_details)54 struct lpddr2_device_details *emif_get_device_details(u32 emif_nr, u8 cs,
55 struct lpddr2_device_details *lpddr2_dev_details)
56 {
57 if (cs == CS1)
58 return NULL;
59
60 *lpddr2_dev_details = elpida_2G_S4_details;
61
62 return lpddr2_dev_details;
63 }
64
emif_get_device_timings(u32 emif_nr,const struct lpddr2_device_timings ** cs0_device_timings,const struct lpddr2_device_timings ** cs1_device_timings)65 void emif_get_device_timings(u32 emif_nr,
66 const struct lpddr2_device_timings **cs0_device_timings,
67 const struct lpddr2_device_timings **cs1_device_timings)
68 {
69 *cs0_device_timings = &elpida_2G_S4_timings;
70 *cs1_device_timings = NULL;
71 }
72
board_init(void)73 int board_init(void)
74 {
75 /* GPMC init */
76 gpmc_init();
77
78 /* MACH number */
79 gd->bd->bi_arch_number = MACH_TYPE_OMAP_4430SDP;
80
81 /* ATAGs location */
82 gd->bd->bi_boot_params = OMAP44XX_DRAM_ADDR_SPACE_START + 0x100;
83
84 return 0;
85 }
86
misc_init_r(void)87 int misc_init_r(void)
88 {
89 char reboot_mode[2] = { 0 };
90 u32 data = 0;
91 u32 value;
92 int rc;
93
94 /* Reboot mode */
95
96 rc = omap_reboot_mode(reboot_mode, sizeof(reboot_mode));
97
98 /* USB ID pin pull-up indicates factory (fastboot) cable detection. */
99 gpio_request(KC1_GPIO_USB_ID, "USB_ID");
100 gpio_direction_input(KC1_GPIO_USB_ID);
101 value = gpio_get_value(KC1_GPIO_USB_ID);
102
103 if (value)
104 reboot_mode[0] = 'b';
105
106 if (rc < 0 || reboot_mode[0] == 'o') {
107 /*
108 * When not rebooting, valid power on reasons are either the
109 * power button, charger plug or USB plug.
110 */
111
112 data |= twl6030_input_power_button();
113 data |= twl6030_input_charger();
114 data |= twl6030_input_usb();
115
116 if (!data)
117 twl6030_power_off();
118 }
119
120 if (reboot_mode[0] > 0 && isascii(reboot_mode[0])) {
121 if (!env_get("reboot-mode"))
122 env_set("reboot-mode", (char *)reboot_mode);
123 }
124
125 omap_reboot_mode_clear();
126
127 /* Serial number */
128
129 omap_die_id_serial();
130
131 /* MUSB */
132
133 musb_register(&musb_platform_data, &musb_board_data, (void *)MUSB_BASE);
134
135 return 0;
136 }
137
get_board_rev(void)138 u32 get_board_rev(void)
139 {
140 u32 value = 0;
141
142 gpio_request(KC1_GPIO_MBID0, "MBID0");
143 gpio_request(KC1_GPIO_MBID1, "MBID1");
144 gpio_request(KC1_GPIO_MBID2, "MBID2");
145 gpio_request(KC1_GPIO_MBID3, "MBID3");
146
147 gpio_direction_input(KC1_GPIO_MBID0);
148 gpio_direction_input(KC1_GPIO_MBID1);
149 gpio_direction_input(KC1_GPIO_MBID2);
150 gpio_direction_input(KC1_GPIO_MBID3);
151
152 value |= (gpio_get_value(KC1_GPIO_MBID0) << 0);
153 value |= (gpio_get_value(KC1_GPIO_MBID1) << 1);
154 value |= (gpio_get_value(KC1_GPIO_MBID2) << 2);
155 value |= (gpio_get_value(KC1_GPIO_MBID3) << 3);
156
157 return value;
158 }
159
get_board_serial(struct tag_serialnr * serialnr)160 void get_board_serial(struct tag_serialnr *serialnr)
161 {
162 omap_die_id_get_board_serial(serialnr);
163 }
164
fastboot_set_reboot_flag(void)165 int fastboot_set_reboot_flag(void)
166 {
167 return omap_reboot_mode_store("b");
168 }
169
board_mmc_init(bd_t * bis)170 int board_mmc_init(bd_t *bis)
171 {
172 return omap_mmc_init(1, 0, 0, -1, -1);
173 }
174
board_mmc_power_init(void)175 void board_mmc_power_init(void)
176 {
177 twl6030_power_mmc_init(1);
178 }
179