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 <linux/ctype.h> 11 #include <linux/usb/musb.h> 12 #include <asm/omap_musb.h> 13 #include <asm/arch/sys_proto.h> 14 #include <asm/arch/mmc_host_def.h> 15 #include <asm/gpio.h> 16 #include <asm/emif.h> 17 #include <twl6030.h> 18 #include "kc1.h" 19 #include <asm/mach-types.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 int rc; 92 93 /* Reboot mode */ 94 95 rc = omap_reboot_mode(reboot_mode, sizeof(reboot_mode)); 96 97 /* USB ID pin pull-up indicates factory (fastboot) cable detection. */ 98 gpio_request(KC1_GPIO_USB_ID, "USB_ID"); 99 gpio_direction_input(KC1_GPIO_USB_ID); 100 value = gpio_get_value(KC1_GPIO_USB_ID); 101 102 if (value) 103 reboot_mode[0] = 'b'; 104 105 if (rc < 0 || reboot_mode[0] == 'o') { 106 /* 107 * When not rebooting, valid power on reasons are either the 108 * power button, charger plug or USB plug. 109 */ 110 111 data |= twl6030_input_power_button(); 112 data |= twl6030_input_charger(); 113 data |= twl6030_input_usb(); 114 115 if (!data) 116 twl6030_power_off(); 117 } 118 119 if (reboot_mode[0] > 0 && isascii(reboot_mode[0])) { 120 if (!env_get("reboot-mode")) 121 env_set("reboot-mode", (char *)reboot_mode); 122 } 123 124 omap_reboot_mode_clear(); 125 126 /* Serial number */ 127 128 omap_die_id_serial(); 129 130 /* MUSB */ 131 132 musb_register(&musb_platform_data, &musb_board_data, (void *)MUSB_BASE); 133 134 return 0; 135 } 136 137 u32 get_board_rev(void) 138 { 139 u32 value = 0; 140 141 gpio_request(KC1_GPIO_MBID0, "MBID0"); 142 gpio_request(KC1_GPIO_MBID1, "MBID1"); 143 gpio_request(KC1_GPIO_MBID2, "MBID2"); 144 gpio_request(KC1_GPIO_MBID3, "MBID3"); 145 146 gpio_direction_input(KC1_GPIO_MBID0); 147 gpio_direction_input(KC1_GPIO_MBID1); 148 gpio_direction_input(KC1_GPIO_MBID2); 149 gpio_direction_input(KC1_GPIO_MBID3); 150 151 value |= (gpio_get_value(KC1_GPIO_MBID0) << 0); 152 value |= (gpio_get_value(KC1_GPIO_MBID1) << 1); 153 value |= (gpio_get_value(KC1_GPIO_MBID2) << 2); 154 value |= (gpio_get_value(KC1_GPIO_MBID3) << 3); 155 156 return value; 157 } 158 159 void get_board_serial(struct tag_serialnr *serialnr) 160 { 161 omap_die_id_get_board_serial(serialnr); 162 } 163 164 int fastboot_set_reboot_flag(void) 165 { 166 return omap_reboot_mode_store("b"); 167 } 168 169 int board_mmc_init(bd_t *bis) 170 { 171 return omap_mmc_init(1, 0, 0, -1, -1); 172 } 173 174 void board_mmc_power_init(void) 175 { 176 twl6030_power_mmc_init(1); 177 } 178