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 <asm/arch/emac_defs.h>
31 #include "../common/psc.h"
32 #include "../common/misc.h"
34 DECLARE_GLOBAL_DATA_PTR;
38 /* arch number of the board */
39 gd->bd->bi_arch_number = MACH_TYPE_DAVINCI_EVM;
41 /* address of boot parameters */
42 gd->bd->bi_boot_params = LINUX_BOOT_PARAM_ADDR;
44 /* Workaround for TMS320DM6446 errata 1.3.22 */
45 REG(PSC_SILVER_BULLET) = 0;
47 /* Power on required peripherals */
48 lpsc_on(DAVINCI_LPSC_EMAC);
49 lpsc_on(DAVINCI_LPSC_EMAC_WRAPPER);
50 lpsc_on(DAVINCI_LPSC_MDIO);
51 lpsc_on(DAVINCI_LPSC_I2C);
52 lpsc_on(DAVINCI_LPSC_UART0);
53 lpsc_on(DAVINCI_LPSC_TIMER1);
54 lpsc_on(DAVINCI_LPSC_GPIO);
55 lpsc_on(DAVINCI_LPSC_USB);
57 #if !defined(CONFIG_SYS_USE_DSPLINK)
60 #endif /* CONFIG_SYS_USE_DSPLINK */
62 /* Bringup UART0 out of reset */
63 REG(UART0_PWREMU_MGMT) = 0x0000e003;
65 /* Enable GIO3.3V cells used for EMAC */
66 REG(VDD3P3V_PWDN) = 0;
68 /* Enable UART0 MUX lines */
71 /* Enable EMAC and AEMIF pins */
72 REG(PINMUX0) = 0x80000c1f;
74 /* Enable I2C pin Mux */
75 REG(PINMUX1) |= (1 << 7);
77 /* Set the Bus Priority Register to appropriate value */
88 uint8_t eeprom_enetaddr[6];
90 dv_display_clk_infos();
92 /* Read Ethernet MAC address from EEPROM if available. */
93 if (dvevm_read_mac_address(eeprom_enetaddr))
94 dv_configure_mac_address(eeprom_enetaddr);
97 printf("ethernet init failed!\n");
99 i2c_read(0x39, 0x00, 1, &video_mode, 1);
101 setenv("videostd", ((video_mode & 0x80) ? "pal" : "ntsc"));
106 #ifdef CONFIG_USB_DAVINCI
108 /* IO Expander I2C address and USB VBUS enable mask */
109 #define IOEXP_I2C_ADDR 0x3A
110 #define IOEXP_VBUSEN_MASK 1
113 * This function enables USB VBUS by writting to IO expander using I2C.
114 * Note that the I2C is already initialized at this stage. This
115 * function is used by davinci specific USB wrapper code.
117 void enable_vbus(void)
119 uchar data; /* IO Expander data to enable VBUS */
121 /* Write to IO expander to enable VBUS */
122 i2c_read(IOEXP_I2C_ADDR, 0, 0, &data, 1);
123 data &= ~IOEXP_VBUSEN_MASK;
124 i2c_write(IOEXP_I2C_ADDR, 0, 0, &data, 1);