2 * Modified for Hawkboard - Syed Mohammed Khasim <khasim@beagleboard.org>
4 * Copyright (C) 2008 Sekhar Nori, Texas Instruments, Inc. <nsekhar@ti.com>
5 * Copyright (C) 2007 Sergey Kubushyn <ksi@koi8.net>
6 * Copyright (C) 2004 Texas Instruments.
8 * ----------------------------------------------------------------------------
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
22 * ----------------------------------------------------------------------------
26 #include <asm/errno.h>
27 #include <asm/arch/hardware.h>
29 #include <asm/arch/davinci_misc.h>
30 #include <asm/arch/pinmux_defs.h>
34 DECLARE_GLOBAL_DATA_PTR;
36 static const struct pinmux_resource pinmuxes[] = {
37 PINMUX_ITEM(emac_pins_mii),
38 PINMUX_ITEM(emac_pins_mdio),
39 PINMUX_ITEM(emifa_pins_cs3),
40 PINMUX_ITEM(emifa_pins_cs4),
41 PINMUX_ITEM(emifa_pins_nand),
42 PINMUX_ITEM(uart2_pins_txrx),
43 PINMUX_ITEM(uart2_pins_rtscts),
46 static const struct lpsc_resource lpsc[] = {
47 { DAVINCI_LPSC_AEMIF }, /* NAND, NOR */
48 { DAVINCI_LPSC_SPI1 }, /* Serial Flash */
49 { DAVINCI_LPSC_EMAC }, /* image download */
50 { DAVINCI_LPSC_UART2 }, /* console */
51 { DAVINCI_LPSC_GPIO },
54 void board_init_f(ulong bootflag)
57 * Kick Registers need to be set to allow access to Pin Mux registers
59 writel(DV_SYSCFG_KICK0_UNLOCK, &davinci_syscfg_regs->kick0);
60 writel(DV_SYSCFG_KICK1_UNLOCK, &davinci_syscfg_regs->kick1);
62 /* setup the SUSPSRC for ARM to control emulation suspend */
63 writel(readl(&davinci_syscfg_regs->suspsrc) &
64 ~(DAVINCI_SYSCFG_SUSPSRC_EMAC | DAVINCI_SYSCFG_SUSPSRC_I2C |
65 DAVINCI_SYSCFG_SUSPSRC_SPI1 | DAVINCI_SYSCFG_SUSPSRC_TIMER0 |
66 DAVINCI_SYSCFG_SUSPSRC_UART2), &davinci_syscfg_regs->suspsrc);
68 /* Power on required peripherals
69 * ARM does not have acess by default to PSC0 and PSC1
70 * assuming here that the DSP bootloader has set the IOPU
71 * such that PSC access is available to ARM
73 da8xx_configure_lpsc_items(lpsc, ARRAY_SIZE(lpsc));
75 /* configure pinmux settings */
76 davinci_configure_pin_mux_items(pinmuxes,
77 ARRAY_SIZE(pinmuxes));
79 writel(readl(&davinci_uart2_ctrl_regs->pwremu_mgmt) |
80 (DAVINCI_UART_PWREMU_MGMT_FREE) |
81 (DAVINCI_UART_PWREMU_MGMT_URRST) |
82 (DAVINCI_UART_PWREMU_MGMT_UTRST),
83 &davinci_uart2_ctrl_regs->pwremu_mgmt);
85 NS16550_init((NS16550_t)(DAVINCI_UART2_BASE),
86 CONFIG_SYS_NS16550_CLK / 16 / CONFIG_BAUDRATE);
88 puts("Nand boot...\n");
93 void puts(const char *str)
101 if (gd->flags & GD_FLG_SILENT)
105 NS16550_putc((NS16550_t)(DAVINCI_UART2_BASE), '\r');
107 NS16550_putc((NS16550_t)(DAVINCI_UART2_BASE), c);
112 puts("### ERROR ### Please RESET the board ###\n");