diff options
Diffstat (limited to 'board/davinci/da8xxevm/hawkboard_nand_spl.c')
| -rw-r--r-- | board/davinci/da8xxevm/hawkboard_nand_spl.c | 158 |
1 files changed, 158 insertions, 0 deletions
diff --git a/board/davinci/da8xxevm/hawkboard_nand_spl.c b/board/davinci/da8xxevm/hawkboard_nand_spl.c new file mode 100644 index 000000000..74eec1321 --- /dev/null +++ b/board/davinci/da8xxevm/hawkboard_nand_spl.c @@ -0,0 +1,158 @@ +/* + * 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> +#include <asm/arch/da8xx_common.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 (;;) + ; +} |