159 lines
4.2 KiB
C
159 lines
4.2 KiB
C
/*
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* Modified for Hawkboard - Syed Mohammed Khasim <khasim@beagleboard.org>
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*
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* Copyright (C) 2008 Sekhar Nori, Texas Instruments, Inc. <nsekhar@ti.com>
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* Copyright (C) 2007 Sergey Kubushyn <ksi@koi8.net>
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* Copyright (C) 2004 Texas Instruments.
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*
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* ----------------------------------------------------------------------------
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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* ----------------------------------------------------------------------------
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*/
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#include <common.h>
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#include <asm/errno.h>
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#include <asm/arch/hardware.h>
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#include <asm/io.h>
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#include <asm/arch/davinci_misc.h>
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#include <ns16550.h>
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#include <asm/arch/da8xx_common.h>
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DECLARE_GLOBAL_DATA_PTR;
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#define pinmux(x) (&davinci_syscfg_regs->pinmux[x])
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static const struct pinmux_config mii_pins[] = {
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{ pinmux(2), 8, 1 },
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{ pinmux(2), 8, 2 },
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{ pinmux(2), 8, 3 },
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{ pinmux(2), 8, 4 },
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{ pinmux(2), 8, 5 },
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{ pinmux(2), 8, 6 },
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{ pinmux(2), 8, 7 }
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};
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static const struct pinmux_config mdio_pins[] = {
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{ pinmux(4), 8, 0 },
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{ pinmux(4), 8, 1 }
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};
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static const struct pinmux_config nand_pins[] = {
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{ pinmux(7), 1, 1 },
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{ pinmux(7), 1, 2 },
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{ pinmux(7), 1, 4 },
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{ pinmux(7), 1, 5 },
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{ pinmux(9), 1, 0 },
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{ pinmux(9), 1, 1 },
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{ pinmux(9), 1, 2 },
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{ pinmux(9), 1, 3 },
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{ pinmux(9), 1, 4 },
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{ pinmux(9), 1, 5 },
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{ pinmux(9), 1, 6 },
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{ pinmux(9), 1, 7 },
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{ pinmux(12), 1, 5 },
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{ pinmux(12), 1, 6 }
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};
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static const struct pinmux_config uart2_pins[] = {
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{ pinmux(0), 4, 6 },
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{ pinmux(0), 4, 7 },
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{ pinmux(4), 2, 4 },
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{ pinmux(4), 2, 5 }
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};
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static const struct pinmux_config i2c_pins[] = {
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{ pinmux(4), 2, 4 },
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{ pinmux(4), 2, 5 }
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};
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static const struct pinmux_resource pinmuxes[] = {
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PINMUX_ITEM(mii_pins),
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PINMUX_ITEM(mdio_pins),
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PINMUX_ITEM(i2c_pins),
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PINMUX_ITEM(nand_pins),
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PINMUX_ITEM(uart2_pins),
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};
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static const struct lpsc_resource lpsc[] = {
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{ DAVINCI_LPSC_AEMIF }, /* NAND, NOR */
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{ DAVINCI_LPSC_SPI1 }, /* Serial Flash */
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{ DAVINCI_LPSC_EMAC }, /* image download */
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{ DAVINCI_LPSC_UART2 }, /* console */
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{ DAVINCI_LPSC_GPIO },
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};
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void board_init_f(ulong bootflag)
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{
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/*
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* Kick Registers need to be set to allow access to Pin Mux registers
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*/
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writel(HAWKBOARD_KICK0_UNLOCK, &davinci_syscfg_regs->kick0);
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writel(HAWKBOARD_KICK1_UNLOCK, &davinci_syscfg_regs->kick1);
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/* setup the SUSPSRC for ARM to control emulation suspend */
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writel(readl(&davinci_syscfg_regs->suspsrc) &
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~(DAVINCI_SYSCFG_SUSPSRC_EMAC | DAVINCI_SYSCFG_SUSPSRC_I2C |
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DAVINCI_SYSCFG_SUSPSRC_SPI1 | DAVINCI_SYSCFG_SUSPSRC_TIMER0 |
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DAVINCI_SYSCFG_SUSPSRC_UART2), &davinci_syscfg_regs->suspsrc);
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/* Power on required peripherals
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* ARM does not have acess by default to PSC0 and PSC1
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* assuming here that the DSP bootloader has set the IOPU
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* such that PSC access is available to ARM
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*/
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da8xx_configure_lpsc_items(lpsc, ARRAY_SIZE(lpsc));
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/* configure pinmux settings */
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davinci_configure_pin_mux_items(pinmuxes,
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ARRAY_SIZE(pinmuxes));
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writel(readl(&davinci_uart2_ctrl_regs->pwremu_mgmt) |
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(DAVINCI_UART_PWREMU_MGMT_FREE) |
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(DAVINCI_UART_PWREMU_MGMT_URRST) |
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(DAVINCI_UART_PWREMU_MGMT_UTRST),
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&davinci_uart2_ctrl_regs->pwremu_mgmt);
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NS16550_init((NS16550_t)(DAVINCI_UART2_BASE),
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CONFIG_SYS_NS16550_CLK / 16 / CONFIG_BAUDRATE);
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puts("Nand boot...\n");
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nand_boot();
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}
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void puts(const char *str)
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{
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while (*str)
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putc(*str++);
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}
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void putc(char c)
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{
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if (gd->flags & GD_FLG_SILENT)
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return;
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if (c == '\n')
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NS16550_putc((NS16550_t)(DAVINCI_UART2_BASE), '\r');
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NS16550_putc((NS16550_t)(DAVINCI_UART2_BASE), c);
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}
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void hang(void)
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{
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puts("### ERROR ### Please RESET the board ###\n");
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for (;;)
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;
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}
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