2 * Copyright (C) 2007 Sergey Kubushyn <ksi@koi8.net>
4 * Parts are shamelessly stolen from various TI sources, original copyright
6 * -----------------------------------------------------------------
8 * Copyright (C) 2004 Texas Instruments.
10 * ----------------------------------------------------------------------------
11 * This program is free software; you can redistribute it and/or modify
12 * it under the terms of the GNU General Public License as published by
13 * the Free Software Foundation; either version 2 of the License, or
14 * (at your option) any later version.
16 * This program is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 * GNU General Public License for more details.
21 * You should have received a copy of the GNU General Public License
22 * along with this program; if not, write to the Free Software
23 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
24 * ----------------------------------------------------------------------------
29 #include <asm/arch/hardware.h>
30 #include "../common/misc.h"
32 DECLARE_GLOBAL_DATA_PTR;
36 /* arch number of the board */
37 gd->bd->bi_arch_number = MACH_TYPE_DAVINCI_EVM;
39 /* address of boot parameters */
40 gd->bd->bi_boot_params = LINUX_BOOT_PARAM_ADDR;
42 /* Configure AEMIF pins (although this should be configured at boot time
43 * with pull-up/pull-down resistors) */
44 REG(PINMUX0) = 0x00000c1f;
46 davinci_errata_workarounds();
48 /* Power on required peripherals */
49 lpsc_on(DAVINCI_LPSC_GPIO);
50 lpsc_on(DAVINCI_LPSC_USB);
52 #if !defined(CONFIG_SYS_USE_DSPLINK)
55 #endif /* CONFIG_SYS_USE_DSPLINK */
57 davinci_enable_uart0();
58 davinci_enable_emac();
61 lpsc_on(DAVINCI_LPSC_TIMER1);
70 uint8_t eeprom_enetaddr[6];
72 /* Read Ethernet MAC address from EEPROM if available. */
73 if (dvevm_read_mac_address(eeprom_enetaddr))
74 dv_configure_mac_address(eeprom_enetaddr);
77 printf("ethernet init failed!\n");
79 i2c_read(0x39, 0x00, 1, &video_mode, 1);
81 setenv("videostd", ((video_mode & 0x80) ? "pal" : "ntsc"));
86 #ifdef CONFIG_USB_DAVINCI
88 /* IO Expander I2C address and USB VBUS enable mask */
89 #define IOEXP_I2C_ADDR 0x3A
90 #define IOEXP_VBUSEN_MASK 1
93 * This function enables USB VBUS by writting to IO expander using I2C.
94 * Note that the I2C is already initialized at this stage. This
95 * function is used by davinci specific USB wrapper code.
97 void enable_vbus(void)
99 uchar data; /* IO Expander data to enable VBUS */
101 /* Write to IO expander to enable VBUS */
102 i2c_read(IOEXP_I2C_ADDR, 0, 0, &data, 1);
103 data &= ~IOEXP_VBUSEN_MASK;
104 i2c_write(IOEXP_I2C_ADDR, 0, 0, &data, 1);