diff options
Diffstat (limited to 'board')
| -rw-r--r-- | board/omicron/calimain/Makefile | 45 | ||||
| -rw-r--r-- | board/omicron/calimain/calimain.c | 188 |
2 files changed, 233 insertions, 0 deletions
diff --git a/board/omicron/calimain/Makefile b/board/omicron/calimain/Makefile new file mode 100644 index 0000000..cd1f0d4 --- /dev/null +++ b/board/omicron/calimain/Makefile @@ -0,0 +1,45 @@ +# +# (C) Copyright 2000, 2001, 2002 +# Wolfgang Denk, DENX Software Engineering, wd@denx.de. +# +# Copyright (C) 2007 Sergey Kubushyn <ksi@koi8.net> +# +# See file CREDITS for list of people who contributed to this +# project. +# +# 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., 59 Temple Place, Suite 330, Boston, +# MA 02111-1307 USA +# + +include $(TOPDIR)/config.mk + +LIB = $(obj)lib$(BOARD).o + +COBJS := $(BOARD).o + +SRCS := $(SOBJS:.o=.S) $(COBJS:.o=.c) +OBJS := $(addprefix $(obj),$(COBJS)) +SOBJS := $(addprefix $(obj),$(SOBJS)) + +$(LIB): $(obj).depend $(OBJS) $(SOBJS) + $(call cmd_link_o_target, $(OBJS) $(SOBJS)) + +######################################################################### +# This is for $(obj).depend target +include $(SRCTREE)/rules.mk + +sinclude $(obj).depend + +######################################################################### diff --git a/board/omicron/calimain/calimain.c b/board/omicron/calimain/calimain.c new file mode 100644 index 0000000..97ba74a --- /dev/null +++ b/board/omicron/calimain/calimain.c @@ -0,0 +1,188 @@ +/* + * Copyright (C) 2011 OMICRON electronics GmbH + * + * Based on da850evm.c. Original Copyrights follow: + * + * Copyright (C) 2010 Texas Instruments Incorporated - http://www.ti.com/ + * Copyright (C) 2009 Nick Thompson, GE Fanuc, Ltd. <nick.thompson@gefanuc.com> + * Copyright (C) 2007 Sergey Kubushyn <ksi@koi8.net> + * + * 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 <i2c.h> +#include <net.h> +#include <netdev.h> +#include <watchdog.h> +#include <asm/io.h> +#include <asm/arch/hardware.h> +#include <asm/arch/gpio.h> +#include <asm/arch/emif_defs.h> +#include <asm/arch/emac_defs.h> +#include <asm/arch/pinmux_defs.h> +#include <asm/arch/davinci_misc.h> +#include <asm/arch/timer_defs.h> + +DECLARE_GLOBAL_DATA_PTR; + +#define CALIMAIN_HWVERSION_MASK 0x7f000000 +#define CALIMAIN_HWVERSION_SHIFT 24 + +/* Hardware version pinmux settings */ +const struct pinmux_config hwversion_pins[] = { + { pinmux(16), 8, 2 }, /* GP7[15] */ + { pinmux(16), 8, 3 }, /* GP7[14] */ + { pinmux(16), 8, 4 }, /* GP7[13] */ + { pinmux(16), 8, 5 }, /* GP7[12] */ + { pinmux(16), 8, 6 }, /* GP7[11] */ + { pinmux(16), 8, 7 }, /* GP7[10] */ + { pinmux(17), 8, 0 }, /* GP7[9] */ + { pinmux(17), 8, 1 } /* GP7[8] */ +}; + +const struct pinmux_resource pinmuxes[] = { + PINMUX_ITEM(uart2_pins_txrx), + PINMUX_ITEM(emac_pins_mii), + PINMUX_ITEM(emac_pins_mdio), + PINMUX_ITEM(emifa_pins_nor), + PINMUX_ITEM(emifa_pins_cs2), + PINMUX_ITEM(emifa_pins_cs3), +}; + +const int pinmuxes_size = ARRAY_SIZE(pinmuxes); + +const struct lpsc_resource lpsc[] = { + { DAVINCI_LPSC_AEMIF }, /* NAND, NOR */ + { DAVINCI_LPSC_EMAC }, /* image download */ + { DAVINCI_LPSC_UART2 }, /* console */ + { DAVINCI_LPSC_GPIO }, +}; + +const int lpsc_size = ARRAY_SIZE(lpsc); + +/* read board revision from GPIO7[8..14] */ +u32 get_board_rev(void) +{ + lpsc_on(DAVINCI_LPSC_GPIO); + if (davinci_configure_pin_mux(hwversion_pins, + ARRAY_SIZE(hwversion_pins)) != 0) + return 0xffffffff; + + return (davinci_gpio_bank67->in_data & CALIMAIN_HWVERSION_MASK) + >> CALIMAIN_HWVERSION_SHIFT; +} + +/* + * determine the oscillator frequency depending on the board revision + * + * rev 0x00 ... 25 MHz oscillator + * rev 0x01 ... 24 MHz oscillator + */ +int calimain_get_osc_freq(void) +{ + u32 rev; + int freq; + + rev = get_board_rev(); + switch (rev) { + case 0x00: + freq = 25000000; + break; + default: + freq = 24000000; + break; + } + return freq; +} + +int board_init(void) +{ + int val; + +#ifndef CONFIG_USE_IRQ + irq_init(); +#endif + + /* address of boot parameters */ + gd->bd->bi_boot_params = LINUX_BOOT_PARAM_ADDR; + +#ifdef CONFIG_DRIVER_TI_EMAC + /* select emac MII mode */ + val = readl(&davinci_syscfg_regs->cfgchip3); + val &= ~(1 << 8); + writel(val, &davinci_syscfg_regs->cfgchip3); +#endif /* CONFIG_DRIVER_TI_EMAC */ + +#ifdef CONFIG_HW_WATCHDOG + davinci_hw_watchdog_enable(); +#endif + + printf("Input clock frequency: %d Hz\n", calimain_get_osc_freq()); + printf("Board revision: %d\n", get_board_rev()); + + return 0; +} + +#ifdef CONFIG_DRIVER_TI_EMAC +/* + * Initializes on-board ethernet controllers. + */ +int board_eth_init(bd_t *bis) +{ + if (!davinci_emac_initialize()) { + printf("Error: Ethernet init failed!\n"); + return -1; + } + + return 0; +} +#endif /* CONFIG_DRIVER_TI_EMAC */ + +#ifdef CONFIG_HW_WATCHDOG +void hw_watchdog_reset(void) +{ + davinci_hw_watchdog_reset(); +} +#endif + +#if defined(CONFIG_BOOTCOUNT_LIMIT) +void bootcount_store(ulong a) +{ + struct davinci_rtc *reg = + (struct davinci_rtc *)CONFIG_SYS_BOOTCOUNT_ADDR; + + /* + * write RTC kick register to enable write + * for RTC Scratch registers. Cratch0 and 1 are + * used for bootcount values. + */ + writel(RTC_KICK0R_WE, ®->kick0r); + writel(RTC_KICK1R_WE, ®->kick1r); + writel(a, ®->scratch0); + writel(BOOTCOUNT_MAGIC, ®->scratch1); +} + +ulong bootcount_load(void) +{ + struct davinci_rtc *reg = + (struct davinci_rtc *)CONFIG_SYS_BOOTCOUNT_ADDR; + + if (readl(®->scratch1) != BOOTCOUNT_MAGIC) + return 0; + else + return readl(®->scratch0); +} +#endif |