arm, davinci: Add support for the Calimain board from OMICRON electronics
This patch adds support for the Calimain board from
OMICRON electronics GmbH. The board features a Texas Instruments AM1808
SoC, 128 MB DDR2 memory, and 64 MB NOR flash memory connected to CS2 and
CS3.
Signed-off-by: Christian Riesch <christian.riesch@omicron.at>
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