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bbbc1ae921
Add parameters to the OMAP MMC initialization function so the board can mask host capabilities and set the maximum clock frequency. While the OMAP supports a certain set of MMC host capabilities, individual boards may be more restricted and the OMAP may need to be configured to match the board. The PRG_SDMMC1_SPEEDCTRL bit in the OMAP3 is an example. Signed-off-by: Jonathan Solnit <jsolnit@gmail.com>
106 lines
2.7 KiB
C
106 lines
2.7 KiB
C
/*
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* (C) Copyright 2012
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* Corscience GmbH & Co. KG, <www.corscience.de>
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* Thomas Weber <weber@corscience.de>
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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 Devkit8000 code by
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* Frederik Kriewitz <frederik@kriewitz.eu>
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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/mmc_host_def.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/mem.h>
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#include "tricorder.h"
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DECLARE_GLOBAL_DATA_PTR;
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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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gpmc_init(); /* in SRAM or SDRAM, finish GPMC */
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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: 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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twl4030_power_init();
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#ifdef CONFIG_TWL4030_LED
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twl4030_led_init(TWL4030_LED_LEDEN_LEDAON | TWL4030_LED_LEDEN_LEDBON);
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#endif
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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_TRICORDER();
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}
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#if defined(CONFIG_GENERIC_MMC) && !(defined(CONFIG_SPL_BUILD))
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int board_mmc_init(bd_t *bis)
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{
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return omap_mmc_init(0, 0, 0);
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}
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#endif
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/*
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* Routine: get_board_mem_timings
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* Description: If we use SPL then there is no x-loader nor config header
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* so we have to setup the DDR timings ourself on the first bank. This
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* provides the timing values back to the function that configures
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* the memory. We have either one or two banks of 128MB DDR.
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*/
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void get_board_mem_timings(u32 *mcfg, u32 *ctrla, u32 *ctrlb, u32 *rfr_ctrl,
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u32 *mr)
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{
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/* General SDRC config */
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*mcfg = MICRON_V_MCFG_165(128 << 20);
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*rfr_ctrl = SDP_3430_SDRC_RFR_CTRL_165MHz;
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/* AC timings */
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*ctrla = MICRON_V_ACTIMA_165;
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*ctrlb = MICRON_V_ACTIMB_165;
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*mr = MICRON_V_MR_165;
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}
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