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ead39d7aa3
Not all boards have both LEDs hooked, so enabling both on boards with single LED will just waste power. Make it possible to choose LEDs by adding argument to twl4030_led_init(). Using this turn on only LEDB for pandora, leave both LEDs on for all other boards, as it was before this patch. Signed-off-by: Grazvydas Ignotas <notasas@gmail.com>
143 lines
3.6 KiB
C
143 lines
3.6 KiB
C
/*
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* (C) Copyright 2004-2008
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* Texas Instruments, <www.ti.com>
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*
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* Author :
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* Sunil Kumar <sunilsaini05@gmail.com>
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* Shashi Ranjan <shashiranjanmca05@gmail.com>
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*
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* Derived from Beagle Board and 3430 SDP code by
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* Richard Woodruff <r-woodruff2@ti.com>
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* Syed Mohammed Khasim <khasim@ti.com>
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*
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*
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* See file CREDITS for list of people who contributed to this
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* project.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*/
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#include <common.h>
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#include <twl4030.h>
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#include <asm/io.h>
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#include <asm/arch/mux.h>
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#include <asm/arch/sys_proto.h>
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#include <asm/arch/gpio.h>
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#include <asm/mach-types.h>
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#include "beagle.h"
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static int beagle_revision_c;
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/*
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* Routine: board_init
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* Description: Early hardware init.
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*/
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int board_init(void)
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{
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DECLARE_GLOBAL_DATA_PTR;
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gpmc_init(); /* in SRAM or SDRAM, finish GPMC */
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/* board id for Linux */
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gd->bd->bi_arch_number = MACH_TYPE_OMAP3_BEAGLE;
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/* boot param addr */
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gd->bd->bi_boot_params = (OMAP34XX_SDRC_CS0 + 0x100);
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return 0;
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}
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/*
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* Routine: beagle_get_revision
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* Description: Return the revision of the BeagleBoard this code is running on.
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* If it is a revision Ax/Bx board, this function returns 0,
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* on a revision C board you will get a 1.
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*/
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int beagle_get_revision(void)
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{
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return beagle_revision_c;
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}
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/*
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* Routine: beagle_identify
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* Description: Detect if we are running on a Beagle revision Ax/Bx or
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* Cx. This can be done by GPIO_171. If this is low, we are
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* running on a revision C board.
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*/
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void beagle_identify(void)
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{
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beagle_revision_c = 0;
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if (!omap_request_gpio(171)) {
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unsigned int val;
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omap_set_gpio_direction(171, 1);
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val = omap_get_gpio_datain(171);
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omap_free_gpio(171);
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if (val)
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beagle_revision_c = 0;
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else
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beagle_revision_c = 1;
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}
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printf("Board revision ");
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if (beagle_revision_c)
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printf("C\n");
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else
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printf("Ax/Bx\n");
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}
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/*
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* Routine: misc_init_r
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* Description: Configure board specific parts
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*/
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int misc_init_r(void)
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{
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struct gpio *gpio5_base = (struct gpio *)OMAP34XX_GPIO5_BASE;
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struct gpio *gpio6_base = (struct gpio *)OMAP34XX_GPIO6_BASE;
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twl4030_power_init();
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twl4030_led_init(TWL4030_LED_LEDEN_LEDAON | TWL4030_LED_LEDEN_LEDBON);
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/* Configure GPIOs to output */
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writel(~(GPIO23 | GPIO10 | GPIO8 | GPIO2 | GPIO1), &gpio6_base->oe);
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writel(~(GPIO31 | GPIO30 | GPIO29 | GPIO28 | GPIO22 | GPIO21 |
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GPIO15 | GPIO14 | GPIO13 | GPIO12), &gpio5_base->oe);
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/* Set GPIOs */
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writel(GPIO23 | GPIO10 | GPIO8 | GPIO2 | GPIO1,
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&gpio6_base->setdataout);
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writel(GPIO31 | GPIO30 | GPIO29 | GPIO28 | GPIO22 | GPIO21 |
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GPIO15 | GPIO14 | GPIO13 | GPIO12, &gpio5_base->setdataout);
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beagle_identify();
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dieid_num_r();
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return 0;
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}
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/*
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* Routine: set_muxconf_regs
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* Description: Setting up the configuration Mux registers specific to the
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* hardware. Many pins need to be moved from protect to primary
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* mode.
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*/
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void set_muxconf_regs(void)
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{
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MUX_BEAGLE();
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if (beagle_revision_c) {
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MUX_BEAGLE_C();
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}
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}
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