From 48571ff00526701c88cfcac1294adf20aeeade74 Mon Sep 17 00:00:00 2001 From: Sughosh Ganu Date: Tue, 30 Nov 2010 11:25:01 -0500 Subject: Add board support for hawkboard The patch adds basic board support for TI's OMAP-L138 based Hawkboard. This board is pretty similar to the da850 EVM. Support for nand and network access is added in this version. The following bootup procedure is used. At reset, the Rom Boot Loader(RBL), initialises the ddr and the nand controllers and copies the second stage bootloader(nand_spl) to RAM. The secondary bootloader then copies u-boot from a predefined location in the nand flash to the RAM, and passes control to the u-boot image. Three config options are supported * hawkboard_config - Used to create the u-boot.bin. Tftp the u-boot.bin image to the RAM from u-boot, and flash to the nand flash at address 0xe0000. * hawkboard_nand_config - Used to generate the secondary bootloader(nand_spl) image. This creates an elf file u-boot-spl under nand_spl/. Create an AIS signed image using this file, and flash it to the nand flash at address 0x20000. The ais file should fit in one block. * hawkboard_uart_config - This is same as the first image, but with the TEXT_BASE as expected by the RBL(0xc1080000). Create the AIS Signed-off-by: Sughosh Ganu Signed-off-by: Ben Gardiner Signed-off-by: Sandeep Paulraj --- board/davinci/da8xxevm/Makefile | 1 + board/davinci/da8xxevm/hawkboard.c | 69 ++++++++++++ board/davinci/da8xxevm/hawkboard_nand_spl.c | 158 ++++++++++++++++++++++++++++ 3 files changed, 228 insertions(+) create mode 100644 board/davinci/da8xxevm/hawkboard.c create mode 100644 board/davinci/da8xxevm/hawkboard_nand_spl.c (limited to 'board/davinci/da8xxevm') diff --git a/board/davinci/da8xxevm/Makefile b/board/davinci/da8xxevm/Makefile index 88fee50..1816368 100644 --- a/board/davinci/da8xxevm/Makefile +++ b/board/davinci/da8xxevm/Makefile @@ -30,6 +30,7 @@ LIB = $(obj)lib$(BOARD).o COBJS-y += common.o COBJS-$(CONFIG_MACH_DAVINCI_DA830_EVM) += da830evm.o COBJS-$(CONFIG_MACH_DAVINCI_DA850_EVM) += da850evm.o +COBJS-$(CONFIG_MACH_DAVINCI_HAWK) += hawkboard.o COBJS := $(COBJS-y) diff --git a/board/davinci/da8xxevm/hawkboard.c b/board/davinci/da8xxevm/hawkboard.c new file mode 100644 index 0000000..b672c9d --- /dev/null +++ b/board/davinci/da8xxevm/hawkboard.c @@ -0,0 +1,69 @@ +/* + * Modified for Hawkboard - Syed Mohammed Khasim + * + * Copyright (C) 2008 Sekhar Nori, Texas Instruments, Inc. + * Copyright (C) 2007 Sergey Kubushyn + * 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 +#include +#include +#include +#include +#include +#include + +DECLARE_GLOBAL_DATA_PTR; + +int board_init(void) +{ + /* arch number of the board */ + gd->bd->bi_arch_number = MACH_TYPE_OMAPL138_HAWKBOARD; + + /* address of boot parameters */ + gd->bd->bi_boot_params = LINUX_BOOT_PARAM_ADDR; + + return 0; +} + +int board_early_init_f(void) +{ + /* + * 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); + + /* set cfgchip3 to select mii */ + writel(readl(&davinci_syscfg_regs->cfgchip3) & + ~(1 << 8), &davinci_syscfg_regs->cfgchip3); + + return 0; +} + +int misc_init_r(void) +{ + char buf[32]; + + printf("ARM Clock : %s MHz\n", + strmhz(buf, clk_get(DAVINCI_ARM_CLKID))); + + return 0; +} diff --git a/board/davinci/da8xxevm/hawkboard_nand_spl.c b/board/davinci/da8xxevm/hawkboard_nand_spl.c new file mode 100644 index 0000000..74eec13 --- /dev/null +++ b/board/davinci/da8xxevm/hawkboard_nand_spl.c @@ -0,0 +1,158 @@ +/* + * Modified for Hawkboard - Syed Mohammed Khasim + * + * Copyright (C) 2008 Sekhar Nori, Texas Instruments, Inc. + * Copyright (C) 2007 Sergey Kubushyn + * 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 +#include +#include +#include +#include +#include +#include + +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 (;;) + ; +} -- cgit v1.1