mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-08-22 09:58:52 +09:00
![Jonathan Solnit](/assets/img/avatar_default.png)
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>
201 lines
4.8 KiB
C
201 lines
4.8 KiB
C
/*
|
|
* Copyright (c) 2009 Wind River Systems, Inc.
|
|
* Tom Rix <Tom.Rix@windriver.com>
|
|
*
|
|
* Derived from Zoom1 code by
|
|
* Nishanth Menon <nm@ti.com>
|
|
* Sunil Kumar <sunilsaini05@gmail.com>
|
|
* Shashi Ranjan <shashiranjanmca05@gmail.com>
|
|
* 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 <netdev.h>
|
|
#ifdef CONFIG_STATUS_LED
|
|
#include <status_led.h>
|
|
#endif
|
|
#include <twl4030.h>
|
|
#include <asm/io.h>
|
|
#include <asm/arch/mmc_host_def.h>
|
|
#include <asm/gpio.h>
|
|
#include <asm/arch/mem.h>
|
|
#include <asm/arch/mux.h>
|
|
#include <asm/arch/sys_proto.h>
|
|
#include <asm/mach-types.h>
|
|
#include "zoom2.h"
|
|
#include "zoom2_serial.h"
|
|
|
|
DECLARE_GLOBAL_DATA_PTR;
|
|
|
|
/*
|
|
* This the the zoom2, board specific, gpmc configuration for the
|
|
* quad uart on the debug board. The more general gpmc configurations
|
|
* are setup at the cpu level in arch/arm/cpu/armv7/omap3/mem.c
|
|
*
|
|
* The details of the setting of the serial gpmc setup are not available.
|
|
* The values were provided by another party.
|
|
*/
|
|
static u32 gpmc_serial_TL16CP754C[GPMC_MAX_REG] = {
|
|
0x00011000,
|
|
0x001F1F01,
|
|
0x00080803,
|
|
0x1D091D09,
|
|
0x041D1F1F,
|
|
0x1D0904C4, 0
|
|
};
|
|
|
|
/* Used to track the revision of the board */
|
|
static zoom2_revision revision = ZOOM2_REVISION_UNKNOWN;
|
|
|
|
/*
|
|
* Routine: zoom2_get_revision
|
|
* Description: Return the revision of the Zoom2 this code is running on.
|
|
*/
|
|
zoom2_revision zoom2_get_revision(void)
|
|
{
|
|
return revision;
|
|
}
|
|
|
|
/*
|
|
* Routine: zoom2_identify
|
|
* Description: Detect which version of Zoom2 we are running on.
|
|
*/
|
|
void zoom2_identify(void)
|
|
{
|
|
/*
|
|
* To check for production board vs beta board,
|
|
* check if gpio 94 is clear.
|
|
*
|
|
* No way yet to check for alpha board identity.
|
|
* Alpha boards were produced in very limited quantities
|
|
* and they are not commonly used. They are mentioned here
|
|
* only for completeness.
|
|
*/
|
|
if (!gpio_request(94, "")) {
|
|
unsigned int val;
|
|
|
|
gpio_direction_input(94);
|
|
val = gpio_get_value(94);
|
|
|
|
if (val)
|
|
revision = ZOOM2_REVISION_BETA;
|
|
else
|
|
revision = ZOOM2_REVISION_PRODUCTION;
|
|
}
|
|
|
|
printf("Board revision ");
|
|
switch (revision) {
|
|
case ZOOM2_REVISION_PRODUCTION:
|
|
printf("Production\n");
|
|
break;
|
|
case ZOOM2_REVISION_BETA:
|
|
printf("Beta\n");
|
|
break;
|
|
default:
|
|
printf("Unknown\n");
|
|
break;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Routine: board_init
|
|
* Description: Early hardware init.
|
|
*/
|
|
int board_init (void)
|
|
{
|
|
u32 *gpmc_config;
|
|
|
|
gpmc_init (); /* in SRAM or SDRAM, finish GPMC */
|
|
|
|
/* Configure console support on zoom2 */
|
|
gpmc_config = gpmc_serial_TL16CP754C;
|
|
enable_gpmc_cs_config(gpmc_config, &gpmc_cfg->cs[3],
|
|
SERIAL_TL16CP754C_BASE, GPMC_SIZE_16M);
|
|
|
|
/* board id for Linux */
|
|
gd->bd->bi_arch_number = MACH_TYPE_OMAP_ZOOM2;
|
|
/* boot param addr */
|
|
gd->bd->bi_boot_params = (OMAP34XX_SDRC_CS0 + 0x100);
|
|
|
|
#if defined(CONFIG_STATUS_LED) && defined(STATUS_LED_BOOT)
|
|
status_led_set (STATUS_LED_BOOT, STATUS_LED_ON);
|
|
#endif
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* Routine: misc_init_r
|
|
* Description: Configure zoom board specific configurations
|
|
*/
|
|
int misc_init_r(void)
|
|
{
|
|
zoom2_identify();
|
|
twl4030_power_init();
|
|
twl4030_led_init(TWL4030_LED_LEDEN_LEDAON | TWL4030_LED_LEDEN_LEDBON);
|
|
dieid_num_r();
|
|
|
|
/*
|
|
* Board Reset
|
|
* The board is reset by holding the the large button
|
|
* on the top right side of the main board for
|
|
* eight seconds.
|
|
*
|
|
* There are reported problems of some beta boards
|
|
* continously resetting. For those boards, disable resetting.
|
|
*/
|
|
if (ZOOM2_REVISION_PRODUCTION <= zoom2_get_revision())
|
|
twl4030_power_reset_init();
|
|
|
|
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)
|
|
{
|
|
/* platform specific muxes */
|
|
MUX_ZOOM2 ();
|
|
}
|
|
|
|
#ifdef CONFIG_GENERIC_MMC
|
|
int board_mmc_init(bd_t *bis)
|
|
{
|
|
omap_mmc_init(0, 0, 0);
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
#ifdef CONFIG_CMD_NET
|
|
int board_eth_init(bd_t *bis)
|
|
{
|
|
int rc = 0;
|
|
#ifdef CONFIG_LAN91C96
|
|
rc = lan91c96_initialize(0, CONFIG_LAN91C96_BASE);
|
|
#endif
|
|
return rc;
|
|
}
|
|
#endif
|