99 lines
2.2 KiB
C
99 lines
2.2 KiB
C
|
// SPDX-License-Identifier: GPL-2.0+
|
||
|
/*
|
||
|
* Copyright (c) 2014 DENX
|
||
|
* Written-by: Albert ARIBAUD <albert.aribaud@3adev.fr>
|
||
|
*
|
||
|
* Derived from code written by Robert Aigner (ra@spiid.net)
|
||
|
*
|
||
|
* Itself derived from Beagle Board and 3430 SDP code by
|
||
|
* Richard Woodruff <r-woodruff2@ti.com>
|
||
|
* Syed Mohammed Khasim <khasim@ti.com>
|
||
|
*/
|
||
|
#include <common.h>
|
||
|
#include <dm.h>
|
||
|
#include <netdev.h>
|
||
|
#include <ns16550.h>
|
||
|
#include <asm/io.h>
|
||
|
#include <asm/arch/mem.h>
|
||
|
#include <asm/arch/mux.h>
|
||
|
#include <asm/arch/sys_proto.h>
|
||
|
#include <i2c.h>
|
||
|
#include <asm/mach-types.h>
|
||
|
#include <asm/omap_mmc.h>
|
||
|
#include "cairo.h"
|
||
|
|
||
|
DECLARE_GLOBAL_DATA_PTR;
|
||
|
|
||
|
/*
|
||
|
* Routine: board_init
|
||
|
* Description: Early hardware init.
|
||
|
*/
|
||
|
int board_init(void)
|
||
|
{
|
||
|
gpmc_init(); /* in SRAM or SDRAM, finish GPMC */
|
||
|
/* board id for Linux */
|
||
|
gd->bd->bi_arch_number = CONFIG_MACH_TYPE;
|
||
|
/* boot param addr */
|
||
|
gd->bd->bi_boot_params = (OMAP34XX_SDRC_CS0 + 0x100);
|
||
|
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_CAIRO();
|
||
|
}
|
||
|
|
||
|
#if defined(CONFIG_MMC)
|
||
|
int board_mmc_init(bd_t *bis)
|
||
|
{
|
||
|
return omap_mmc_init(0, 0, 0, -1, -1);
|
||
|
}
|
||
|
#endif
|
||
|
|
||
|
#ifdef CONFIG_SPL_BUILD
|
||
|
/*
|
||
|
* Routine: get_board_mem_timings
|
||
|
* Description: If we use SPL then there is no x-loader nor config header
|
||
|
* so we have to setup the DDR timings ourself on the first bank. This
|
||
|
* provides the timing values back to the function that configures
|
||
|
* the memory.
|
||
|
*
|
||
|
* The Cairo board uses SAMSUNG DDR - K4X51163PG-FGC6
|
||
|
*/
|
||
|
void get_board_mem_timings(struct board_sdrc_timings *timings)
|
||
|
{
|
||
|
timings->sharing = SAMSUNG_SHARING;
|
||
|
timings->mcfg = SAMSUNG_V_MCFG_165(128 << 20);
|
||
|
timings->ctrla = SAMSUNG_V_ACTIMA_165;
|
||
|
timings->ctrlb = SAMSUNG_V_ACTIMB_165;
|
||
|
timings->rfr_ctrl = SDP_3430_SDRC_RFR_CTRL_165MHz;
|
||
|
timings->mr = SAMSUNG_V_MR_165;
|
||
|
}
|
||
|
#endif
|
||
|
|
||
|
static const struct ns16550_platdata cairo_serial = {
|
||
|
.base = OMAP34XX_UART2,
|
||
|
.reg_shift = 2,
|
||
|
.clock = V_NS16550_CLK,
|
||
|
.fcr = UART_FCR_DEFVAL,
|
||
|
};
|
||
|
|
||
|
U_BOOT_DEVICE(cairo_uart) = {
|
||
|
"ns16550_serial",
|
||
|
&cairo_serial
|
||
|
};
|
||
|
|
||
|
/* force SPL booting into U-Boot, not Linux */
|
||
|
#ifdef CONFIG_SPL_OS_BOOT
|
||
|
int spl_start_uboot(void)
|
||
|
{
|
||
|
return 1;
|
||
|
}
|
||
|
#endif
|