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authorJean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>2009-08-23 16:32:38 +0200
committerJean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>2009-09-05 01:33:09 +0200
commit0a0e4bad9693ef1d2ca8c33ba551d395a4e3d641 (patch)
tree77fe8fd938e959924120b59932cd24c3fecd78cf /board/ti/beagle/beagle.c
parent2dc851e3b0f07a56f83060f13882ff4b62cf5112 (diff)
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omap: move TI's boards to board/ti/
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Diffstat (limited to 'board/ti/beagle/beagle.c')
-rw-r--r--board/ti/beagle/beagle.c143
1 files changed, 143 insertions, 0 deletions
diff --git a/board/ti/beagle/beagle.c b/board/ti/beagle/beagle.c
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+++ b/board/ti/beagle/beagle.c
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+/*
+ * (C) Copyright 2004-2008
+ * Texas Instruments, <www.ti.com>
+ *
+ * Author :
+ * Sunil Kumar <sunilsaini05@gmail.com>
+ * Shashi Ranjan <shashiranjanmca05@gmail.com>
+ *
+ * Derived from Beagle Board and 3430 SDP code by
+ * Richard Woodruff <r-woodruff2@ti.com>
+ * Syed Mohammed Khasim <khasim@ti.com>
+ *
+ *
+ * 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 <common.h>
+#include <twl4030.h>
+#include <asm/io.h>
+#include <asm/arch/mux.h>
+#include <asm/arch/sys_proto.h>
+#include <asm/arch/gpio.h>
+#include <asm/mach-types.h>
+#include "beagle.h"
+
+static int beagle_revision_c;
+
+/*
+ * Routine: board_init
+ * Description: Early hardware init.
+ */
+int board_init(void)
+{
+ DECLARE_GLOBAL_DATA_PTR;
+
+ gpmc_init(); /* in SRAM or SDRAM, finish GPMC */
+ /* board id for Linux */
+ gd->bd->bi_arch_number = MACH_TYPE_OMAP3_BEAGLE;
+ /* boot param addr */
+ gd->bd->bi_boot_params = (OMAP34XX_SDRC_CS0 + 0x100);
+
+ return 0;
+}
+
+/*
+ * Routine: beagle_get_revision
+ * Description: Return the revision of the BeagleBoard this code is running on.
+ * If it is a revision Ax/Bx board, this function returns 0,
+ * on a revision C board you will get a 1.
+ */
+int beagle_get_revision(void)
+{
+ return beagle_revision_c;
+}
+
+/*
+ * Routine: beagle_identify
+ * Description: Detect if we are running on a Beagle revision Ax/Bx or
+ * Cx. This can be done by GPIO_171. If this is low, we are
+ * running on a revision C board.
+ */
+void beagle_identify(void)
+{
+ beagle_revision_c = 0;
+ if (!omap_request_gpio(171)) {
+ unsigned int val;
+
+ omap_set_gpio_direction(171, 1);
+ val = omap_get_gpio_datain(171);
+ omap_free_gpio(171);
+
+ if (val)
+ beagle_revision_c = 0;
+ else
+ beagle_revision_c = 1;
+ }
+
+ printf("Board revision ");
+ if (beagle_revision_c)
+ printf("C\n");
+ else
+ printf("Ax/Bx\n");
+}
+
+/*
+ * Routine: misc_init_r
+ * Description: Configure board specific parts
+ */
+int misc_init_r(void)
+{
+ struct gpio *gpio5_base = (struct gpio *)OMAP34XX_GPIO5_BASE;
+ struct gpio *gpio6_base = (struct gpio *)OMAP34XX_GPIO6_BASE;
+
+ twl4030_power_init();
+ twl4030_led_init();
+
+ /* Configure GPIOs to output */
+ writel(~(GPIO23 | GPIO10 | GPIO8 | GPIO2 | GPIO1), &gpio6_base->oe);
+ writel(~(GPIO31 | GPIO30 | GPIO29 | GPIO28 | GPIO22 | GPIO21 |
+ GPIO15 | GPIO14 | GPIO13 | GPIO12), &gpio5_base->oe);
+
+ /* Set GPIOs */
+ writel(GPIO23 | GPIO10 | GPIO8 | GPIO2 | GPIO1,
+ &gpio6_base->setdataout);
+ writel(GPIO31 | GPIO30 | GPIO29 | GPIO28 | GPIO22 | GPIO21 |
+ GPIO15 | GPIO14 | GPIO13 | GPIO12, &gpio5_base->setdataout);
+
+ beagle_identify();
+
+ dieid_num_r();
+
+ return 0;
+}
+
+/*
+ * Routine: set_muxconf_regs
+ * Description: Setting up the configuration Mux registers specific to the
+ * hardware. Many pins need to be moved from protect to primary
+ * mode.
+ */
+void set_muxconf_regs(void)
+{
+ MUX_BEAGLE();
+
+ if (beagle_revision_c) {
+ MUX_BEAGLE_C();
+ }
+}