1 /* 2 * (C) Copyright 2008 3 * Grazvydas Ignotas <notasas@gmail.com> 4 * 5 * Derived from Beagle Board, 3430 SDP, and OMAP3EVM code by 6 * Richard Woodruff <r-woodruff2@ti.com> 7 * Syed Mohammed Khasim <khasim@ti.com> 8 * Sunil Kumar <sunilsaini05@gmail.com> 9 * Shashi Ranjan <shashiranjanmca05@gmail.com> 10 * 11 * (C) Copyright 2004-2008 12 * Texas Instruments, <www.ti.com> 13 * 14 * See file CREDITS for list of people who contributed to this 15 * project. 16 * 17 * This program is free software; you can redistribute it and/or 18 * modify it under the terms of the GNU General Public License as 19 * published by the Free Software Foundation; either version 2 of 20 * the License, or (at your option) any later version. 21 * 22 * This program is distributed in the hope that it will be useful, 23 * but WITHOUT ANY WARRANTY; without even the implied warranty of 24 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 25 * GNU General Public License for more details. 26 * 27 * You should have received a copy of the GNU General Public License 28 * along with this program; if not, write to the Free Software 29 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, 30 * MA 02111-1307 USA 31 */ 32 #include <common.h> 33 #include <twl4030.h> 34 #include <asm/io.h> 35 #include <asm/arch/mux.h> 36 #include <asm/arch/sys_proto.h> 37 #include <asm/mach-types.h> 38 #include "pandora.h" 39 40 #define TWL4030_BB_CFG_BBCHEN (1 << 4) 41 #define TWL4030_BB_CFG_BBSEL_3200MV (3 << 2) 42 #define TWL4030_BB_CFG_BBISEL_500UA 2 43 44 /* 45 * Routine: board_init 46 * Description: Early hardware init. 47 */ 48 int board_init(void) 49 { 50 DECLARE_GLOBAL_DATA_PTR; 51 52 gpmc_init(); /* in SRAM or SDRAM, finish GPMC */ 53 /* board id for Linux */ 54 gd->bd->bi_arch_number = MACH_TYPE_OMAP3_PANDORA; 55 /* boot param addr */ 56 gd->bd->bi_boot_params = (OMAP34XX_SDRC_CS0 + 0x100); 57 58 return 0; 59 } 60 61 /* 62 * Routine: misc_init_r 63 * Description: Configure board specific parts 64 */ 65 int misc_init_r(void) 66 { 67 struct gpio *gpio1_base = (struct gpio *)OMAP34XX_GPIO1_BASE; 68 struct gpio *gpio4_base = (struct gpio *)OMAP34XX_GPIO4_BASE; 69 struct gpio *gpio5_base = (struct gpio *)OMAP34XX_GPIO5_BASE; 70 struct gpio *gpio6_base = (struct gpio *)OMAP34XX_GPIO6_BASE; 71 72 twl4030_led_init(TWL4030_LED_LEDEN_LEDBON); 73 74 /* Configure GPIOs to output */ 75 writel(~(GPIO14 | GPIO15 | GPIO16 | GPIO23), &gpio1_base->oe); 76 writel(~GPIO22, &gpio4_base->oe); /* 118 */ 77 writel(~(GPIO0 | GPIO1 | GPIO28 | GPIO29 | GPIO30 | GPIO31), 78 &gpio5_base->oe); /* 128, 129, 156-159 */ 79 writel(~GPIO4, &gpio6_base->oe); /* 164 */ 80 81 /* Set GPIOs */ 82 writel(GPIO28, &gpio5_base->setdataout); 83 writel(GPIO4, &gpio6_base->setdataout); 84 85 /* Enable battery backup capacitor (3.2V, 0.5mA charge current) */ 86 twl4030_i2c_write_u8(TWL4030_CHIP_PM_RECEIVER, 87 TWL4030_BB_CFG_BBCHEN | TWL4030_BB_CFG_BBSEL_3200MV | 88 TWL4030_BB_CFG_BBISEL_500UA, TWL4030_PM_RECEIVER_BB_CFG); 89 90 dieid_num_r(); 91 92 return 0; 93 } 94 95 /* 96 * Routine: set_muxconf_regs 97 * Description: Setting up the configuration Mux registers specific to the 98 * hardware. Many pins need to be moved from protect to primary 99 * mode. 100 */ 101 void set_muxconf_regs(void) 102 { 103 MUX_PANDORA(); 104 } 105