1 /* 2 * Amazon Kindle Fire (first generation) codename kc1 config 3 * 4 * Copyright (C) 2016 Paul Kocialkowski <contact@paulk.fr> 5 * 6 * SPDX-License-Identifier: GPL-2.0+ 7 */ 8 9 #include <config.h> 10 #include <common.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 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 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 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 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 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 } 137 138 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 } 159 160 void get_board_serial(struct tag_serialnr *serialnr) 161 { 162 omap_die_id_get_board_serial(serialnr); 163 } 164 165 int fb_set_reboot_flag(void) 166 { 167 return omap_reboot_mode_store("b"); 168 } 169 170 int board_mmc_init(bd_t *bis) 171 { 172 return omap_mmc_init(1, 0, 0, -1, -1); 173 } 174 175 void board_mmc_power_init(void) 176 { 177 twl6030_power_mmc_init(1); 178 } 179