u-boot/arch/arm/mach-rockchip/rk3036-board-spl.c
Philipp Tomsich b82bd1f8d4 rockchip: back-to-bootrom: allow passing a cmd to the bootrom
The BROM supports forcing it to enter download-mode, if an appropriate
result/cmd-word is returned to it.  There already is a series to
support this in review, so this prepares the (newly C-version) of the
back-to-bootrom code to accept a cmd to passed on to the BROM.

All the existing call-sites are adjusted to match the changed function
signature.

Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Tested-by: Andy Yan <andy.yan@rock-chips.com>
2017-11-21 23:57:22 +01:00

55 lines
1.1 KiB
C

/*
* (C) Copyright 2015 Rockchip Electronics Co., Ltd
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <debug_uart.h>
#include <asm/io.h>
#include <asm/arch/bootrom.h>
#include <asm/arch/grf_rk3036.h>
#include <asm/arch/hardware.h>
#include <asm/arch/sdram_rk3036.h>
#include <asm/arch/timer.h>
#include <asm/arch/uart.h>
DECLARE_GLOBAL_DATA_PTR;
#define GRF_BASE 0x20008000
#define DEBUG_UART_BASE 0x20068000
void board_init_f(ulong dummy)
{
#ifdef EARLY_DEBUG
struct rk3036_grf * const grf = (void *)GRF_BASE;
/*
* NOTE: sd card and debug uart use same iomux in rk3036,
* so if you enable uart,
* you can not boot from sdcard
*/
rk_clrsetreg(&grf->gpio1c_iomux,
GPIO1C3_MASK << GPIO1C3_SHIFT |
GPIO1C2_MASK << GPIO1C2_SHIFT,
GPIO1C3_UART2_SOUT << GPIO1C3_SHIFT |
GPIO1C2_UART2_SIN << GPIO1C2_SHIFT);
debug_uart_init();
#endif
rockchip_timer_init();
sdram_init();
/* return to maskrom */
back_to_bootrom(BROM_BOOT_NEXTSTAGE);
}
/* Place Holders */
void board_init_r(gd_t *id, ulong dest_addr)
{
/*
* Function attribute is no-return
* This Function never executes
*/
while (1)
;
}