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 21 DECLARE_GLOBAL_DATA_PTR; 22 23 const struct omap_sysinfo sysinfo = { 24 .board_string = "kc1" 25 }; 26 27 static struct musb_hdrc_config musb_config = { 28 .multipoint = 1, 29 .dyn_fifo = 1, 30 .num_eps = 16, 31 .ram_bits = 12 32 }; 33 34 static struct omap_musb_board_data musb_board_data = { 35 .interface_type = MUSB_INTERFACE_UTMI, 36 }; 37 38 static struct musb_hdrc_platform_data musb_platform_data = { 39 .mode = MUSB_PERIPHERAL, 40 .config = &musb_config, 41 .power = 100, 42 .platform_ops = &omap2430_ops, 43 .board_data = &musb_board_data, 44 }; 45 46 47 void set_muxconf_regs(void) 48 { 49 do_set_mux((*ctrl)->control_padconf_core_base, core_padconf_array, 50 sizeof(core_padconf_array) / sizeof(struct pad_conf_entry)); 51 } 52 53 struct lpddr2_device_details *emif_get_device_details(u32 emif_nr, u8 cs, 54 struct lpddr2_device_details *lpddr2_dev_details) 55 { 56 if (cs == CS1) 57 return NULL; 58 59 *lpddr2_dev_details = elpida_2G_S4_details; 60 61 return lpddr2_dev_details; 62 } 63 64 void emif_get_device_timings(u32 emif_nr, 65 const struct lpddr2_device_timings **cs0_device_timings, 66 const struct lpddr2_device_timings **cs1_device_timings) 67 { 68 *cs0_device_timings = &elpida_2G_S4_timings; 69 *cs1_device_timings = NULL; 70 } 71 72 int board_init(void) 73 { 74 /* GPMC init */ 75 gpmc_init(); 76 77 /* MACH number */ 78 gd->bd->bi_arch_number = MACH_TYPE_OMAP_4430SDP; 79 80 /* ATAGs location */ 81 gd->bd->bi_boot_params = OMAP44XX_DRAM_ADDR_SPACE_START + 0x100; 82 83 return 0; 84 } 85 86 int misc_init_r(void) 87 { 88 char reboot_mode[2] = { 0 }; 89 u32 data = 0; 90 u32 value; 91 92 /* Reboot mode */ 93 94 omap_reboot_mode(reboot_mode, sizeof(reboot_mode)); 95 96 /* USB ID pin pull-up indicates factory (fastboot) cable detection. */ 97 gpio_request(KC1_GPIO_USB_ID, "USB_ID"); 98 gpio_direction_input(KC1_GPIO_USB_ID); 99 value = gpio_get_value(KC1_GPIO_USB_ID); 100 101 if (value) 102 reboot_mode[0] = 'b'; 103 104 if (reboot_mode[0] > 0 && isascii(reboot_mode[0])) { 105 if (reboot_mode[0] == 'o') 106 twl6030_power_off(); 107 108 if (!getenv("reboot-mode")) 109 setenv("reboot-mode", (char *)reboot_mode); 110 111 omap_reboot_mode_clear(); 112 } else { 113 /* Reboot mode garbage may still be valid, so clear it. */ 114 omap_reboot_mode_clear(); 115 116 /* 117 * When not rebooting, valid power on reasons are either the 118 * power button, charger plug or USB plug. 119 */ 120 121 data |= twl6030_input_power_button(); 122 data |= twl6030_input_charger(); 123 data |= twl6030_input_usb(); 124 125 if (!data) 126 twl6030_power_off(); 127 } 128 129 /* Serial number */ 130 131 omap_die_id_serial(); 132 133 /* MUSB */ 134 135 musb_register(&musb_platform_data, &musb_board_data, (void *)MUSB_BASE); 136 137 return 0; 138 } 139 140 u32 get_board_rev(void) 141 { 142 u32 value = 0; 143 144 gpio_request(KC1_GPIO_MBID0, "MBID0"); 145 gpio_request(KC1_GPIO_MBID1, "MBID1"); 146 gpio_request(KC1_GPIO_MBID2, "MBID2"); 147 gpio_request(KC1_GPIO_MBID3, "MBID3"); 148 149 gpio_direction_input(KC1_GPIO_MBID0); 150 gpio_direction_input(KC1_GPIO_MBID1); 151 gpio_direction_input(KC1_GPIO_MBID2); 152 gpio_direction_input(KC1_GPIO_MBID3); 153 154 value |= (gpio_get_value(KC1_GPIO_MBID0) << 0); 155 value |= (gpio_get_value(KC1_GPIO_MBID1) << 1); 156 value |= (gpio_get_value(KC1_GPIO_MBID2) << 2); 157 value |= (gpio_get_value(KC1_GPIO_MBID3) << 3); 158 159 return value; 160 } 161 162 void get_board_serial(struct tag_serialnr *serialnr) 163 { 164 omap_die_id_get_board_serial(serialnr); 165 } 166 167 int fb_set_reboot_flag(void) 168 { 169 return omap_reboot_mode_store("b"); 170 } 171 172 #ifndef CONFIG_SPL_BUILD 173 int board_mmc_init(bd_t *bis) 174 { 175 return omap_mmc_init(1, 0, 0, -1, -1); 176 } 177 #endif 178 179 void board_mmc_power_init(void) 180 { 181 twl6030_power_mmc_init(1); 182 } 183