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/*
* Modified for Hawkboard - Syed Mohammed Khasim <khasim@beagleboard.org>
*
* Copyright (C) 2008 Sekhar Nori, Texas Instruments, Inc. <nsekhar@ti.com>
* Copyright (C) 2007 Sergey Kubushyn <ksi@koi8.net>
* Copyright (C) 2004 Texas Instruments.
*
* ----------------------------------------------------------------------------
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
* ----------------------------------------------------------------------------
*/
#include <common.h>
#include <asm/errno.h>
#include <asm/arch/hardware.h>
#include <asm/io.h>
#include <asm/arch/davinci_misc.h>
#include <ns16550.h>
DECLARE_GLOBAL_DATA_PTR;
#define pinmux(x) (&davinci_syscfg_regs->pinmux[x])
static const struct pinmux_config mii_pins[] = {
{ pinmux(2), 8, 1 },
{ pinmux(2), 8, 2 },
{ pinmux(2), 8, 3 },
{ pinmux(2), 8, 4 },
{ pinmux(2), 8, 5 },
{ pinmux(2), 8, 6 },
{ pinmux(2), 8, 7 }
};
static const struct pinmux_config mdio_pins[] = {
{ pinmux(4), 8, 0 },
{ pinmux(4), 8, 1 }
};
static const struct pinmux_config nand_pins[] = {
{ pinmux(7), 1, 1 },
{ pinmux(7), 1, 2 },
{ pinmux(7), 1, 4 },
{ pinmux(7), 1, 5 },
{ pinmux(9), 1, 0 },
{ pinmux(9), 1, 1 },
{ pinmux(9), 1, 2 },
{ pinmux(9), 1, 3 },
{ pinmux(9), 1, 4 },
{ pinmux(9), 1, 5 },
{ pinmux(9), 1, 6 },
{ pinmux(9), 1, 7 },
{ pinmux(12), 1, 5 },
{ pinmux(12), 1, 6 }
};
static const struct pinmux_config uart2_pins[] = {
{ pinmux(0), 4, 6 },
{ pinmux(0), 4, 7 },
{ pinmux(4), 2, 4 },
{ pinmux(4), 2, 5 }
};
static const struct pinmux_config i2c_pins[] = {
{ pinmux(4), 2, 4 },
{ pinmux(4), 2, 5 }
};
static const struct pinmux_resource pinmuxes[] = {
PINMUX_ITEM(mii_pins),
PINMUX_ITEM(mdio_pins),
PINMUX_ITEM(i2c_pins),
PINMUX_ITEM(nand_pins),
PINMUX_ITEM(uart2_pins),
};
static const struct lpsc_resource lpsc[] = {
{ DAVINCI_LPSC_AEMIF }, /* NAND, NOR */
{ DAVINCI_LPSC_SPI1 }, /* Serial Flash */
{ DAVINCI_LPSC_EMAC }, /* image download */
{ DAVINCI_LPSC_UART2 }, /* console */
{ DAVINCI_LPSC_GPIO },
};
void board_init_f(ulong bootflag)
{
/*
* Kick Registers need to be set to allow access to Pin Mux registers
*/
writel(HAWKBOARD_KICK0_UNLOCK, &davinci_syscfg_regs->kick0);
writel(HAWKBOARD_KICK1_UNLOCK, &davinci_syscfg_regs->kick1);
/* setup the SUSPSRC for ARM to control emulation suspend */
writel(readl(&davinci_syscfg_regs->suspsrc) &
~(DAVINCI_SYSCFG_SUSPSRC_EMAC | DAVINCI_SYSCFG_SUSPSRC_I2C |
DAVINCI_SYSCFG_SUSPSRC_SPI1 | DAVINCI_SYSCFG_SUSPSRC_TIMER0 |
DAVINCI_SYSCFG_SUSPSRC_UART2), &davinci_syscfg_regs->suspsrc);
/* Power on required peripherals
* ARM does not have acess by default to PSC0 and PSC1
* assuming here that the DSP bootloader has set the IOPU
* such that PSC access is available to ARM
*/
da8xx_configure_lpsc_items(lpsc, ARRAY_SIZE(lpsc));
/* configure pinmux settings */
davinci_configure_pin_mux_items(pinmuxes,
ARRAY_SIZE(pinmuxes));
writel(readl(&davinci_uart2_ctrl_regs->pwremu_mgmt) |
(DAVINCI_UART_PWREMU_MGMT_FREE) |
(DAVINCI_UART_PWREMU_MGMT_URRST) |
(DAVINCI_UART_PWREMU_MGMT_UTRST),
&davinci_uart2_ctrl_regs->pwremu_mgmt);
NS16550_init((NS16550_t)(DAVINCI_UART2_BASE),
CONFIG_SYS_NS16550_CLK / 16 / CONFIG_BAUDRATE);
puts("Nand boot...\n");
nand_boot();
}
void puts(const char *str)
{
while (*str)
putc(*str++);
}
void putc(char c)
{
if (gd->flags & GD_FLG_SILENT)
return;
if (c == '\n')
NS16550_putc((NS16550_t)(DAVINCI_UART2_BASE), '\r');
NS16550_putc((NS16550_t)(DAVINCI_UART2_BASE), c);
}
void hang(void)
{
puts("### ERROR ### Please RESET the board ###\n");
for (;;)
;
}
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