[people/ms/u-boot.git] / arch / powerpc / cpu / ppc4xx / spl_boot.c

/*
 * Copyright (C) 2013 Stefan Roese <sr@denx.de>
 *
 * SPDX-License-Identifier:	GPL-2.0+
 */

#include <common.h>
#include <spl.h>

DECLARE_GLOBAL_DATA_PTR;

/*
 * Return selected boot device. On PPC4xx its only NOR flash right now.
 */
u32 spl_boot_device(void)
{
	return BOOT_DEVICE_NOR;
}

/*
 * SPL version of board_init_f()
 */
void board_init_f(ulong bootflag)
{
	/*
	 * First we need to initialize the SDRAM, so that the real
	 * U-Boot or the OS (Linux) can be loaded
	 */
	dram_init();

	/* Clear bss */
	memset(__bss_start, '\0', __bss_end - __bss_start);

	/*
	 * Init global_data pointer. Has to be done before calling
	 * get_clocks(), as it stores some clock values into gd needed
	 * later on in the serial driver.
	 */
	/* Pointer is writable since we allocated a register for it */
	gd = (gd_t *)(CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_GBL_DATA_OFFSET);
	/* Clear initial global data */
	memset((void *)gd, 0, sizeof(gd_t));

	/*
	 * get_clocks() needs to be called so that the serial driver
	 * works correctly
	 */
	get_clocks();

	/*
	 * Do rudimental console / serial setup
	 */
	preloader_console_init();

	/*
	 * Call board_init_r() (SPL framework version) to load and boot
	 * real U-Boot or OS
	 */
	board_init_r(NULL, 0);
	/* Does not return!!! */
}
Commit	Line	Data
98f99e9f SR	1	/*
	2	* Copyright (C) 2013 Stefan Roese <sr@denx.de>
	3	*
1a459660	4	* SPDX-License-Identifier: GPL-2.0+
98f99e9f SR	5	*/
	6
	7	#include <common.h>
	8	#include <spl.h>
	9
	10	DECLARE_GLOBAL_DATA_PTR;
	11
	12	/*
	13	* Return selected boot device. On PPC4xx its only NOR flash right now.
	14	*/
	15	u32 spl_boot_device(void)
	16	{
	17	return BOOT_DEVICE_NOR;
	18	}
	19
	20	/*
	21	* SPL version of board_init_f()
	22	*/
	23	void board_init_f(ulong bootflag)
	24	{
	25	/*
	26	* First we need to initialize the SDRAM, so that the real
	27	* U-Boot or the OS (Linux) can be loaded
	28	*/
f1683aa7	29	dram_init();
98f99e9f SR	30
	31	/* Clear bss */
	32	memset(__bss_start, '\0', __bss_end - __bss_start);
	33
	34	/*
	35	* Init global_data pointer. Has to be done before calling
	36	* get_clocks(), as it stores some clock values into gd needed
	37	* later on in the serial driver.
	38	*/
	39	/* Pointer is writable since we allocated a register for it */
	40	gd = (gd_t *)(CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_GBL_DATA_OFFSET);
	41	/* Clear initial global data */
	42	memset((void *)gd, 0, sizeof(gd_t));
	43
	44	/*
	45	* get_clocks() needs to be called so that the serial driver
	46	* works correctly
	47	*/
	48	get_clocks();
	49
	50	/*
	51	* Do rudimental console / serial setup
	52	*/
	53	preloader_console_init();
	54
	55	/*
	56	* Call board_init_r() (SPL framework version) to load and boot
	57	* real U-Boot or OS
	58	*/
	59	board_init_r(NULL, 0);
	60	/* Does not return!!! */
	61	}