mirror of
https://github.com/smaeul/u-boot.git
synced 2025-11-03 21:48:15 +00:00
1a4596601f
Signed-off-by: Wolfgang Denk <wd@denx.de> [trini: Fixup common/cmd_io.c] Signed-off-by: Tom Rini <trini@ti.com>
103 lines
1.9 KiB
C
103 lines
1.9 KiB
C
/*
|
|
* Copyright 2004,2009-2011 Freescale Semiconductor, Inc.
|
|
* Jeff Brown
|
|
* Srikanth Srinivasan (srikanth.srinivasan@freescale.com)
|
|
*
|
|
* SPDX-License-Identifier: GPL-2.0+
|
|
*/
|
|
|
|
/*
|
|
* cpu_init.c - low level cpu init
|
|
*/
|
|
|
|
#include <config.h>
|
|
#include <common.h>
|
|
#include <mpc86xx.h>
|
|
#include <asm/mmu.h>
|
|
#include <asm/fsl_law.h>
|
|
#include <asm/fsl_serdes.h>
|
|
#include <asm/mp.h>
|
|
|
|
extern void srio_init(void);
|
|
|
|
DECLARE_GLOBAL_DATA_PTR;
|
|
|
|
/*
|
|
* Breathe some life into the CPU...
|
|
*
|
|
* Set up the memory map
|
|
* initialize a bunch of registers
|
|
*/
|
|
|
|
void cpu_init_f(void)
|
|
{
|
|
/* 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));
|
|
|
|
#ifdef CONFIG_FSL_LAW
|
|
init_laws();
|
|
#endif
|
|
|
|
setup_bats();
|
|
|
|
init_early_memctl_regs();
|
|
|
|
#if defined(CONFIG_FSL_DMA)
|
|
dma_init();
|
|
#endif
|
|
|
|
/* enable the timebase bit in HID0 */
|
|
set_hid0(get_hid0() | 0x4000000);
|
|
|
|
/* enable EMCP, SYNCBE | ABE bits in HID1 */
|
|
set_hid1(get_hid1() | 0x80000C00);
|
|
}
|
|
|
|
/*
|
|
* initialize higher level parts of CPU like timers
|
|
*/
|
|
int cpu_init_r(void)
|
|
{
|
|
/* needs to be in ram since code uses global static vars */
|
|
fsl_serdes_init();
|
|
|
|
#ifdef CONFIG_SYS_SRIO
|
|
srio_init();
|
|
#endif
|
|
|
|
#if defined(CONFIG_MP)
|
|
setup_mp();
|
|
#endif
|
|
return 0;
|
|
}
|
|
|
|
#ifdef CONFIG_ADDR_MAP
|
|
/* Initialize address mapping array */
|
|
void init_addr_map(void)
|
|
{
|
|
int i;
|
|
ppc_bat_t bat = DBAT0;
|
|
phys_size_t size;
|
|
unsigned long upper, lower;
|
|
|
|
for (i = 0; i < CONFIG_SYS_NUM_ADDR_MAP; i++, bat++) {
|
|
if (read_bat(bat, &upper, &lower) != -1) {
|
|
if (!BATU_VALID(upper))
|
|
size = 0;
|
|
else
|
|
size = BATU_SIZE(upper);
|
|
addrmap_set_entry(BATU_VADDR(upper), BATL_PADDR(lower),
|
|
size, i);
|
|
}
|
|
#ifdef CONFIG_HIGH_BATS
|
|
/* High bats are not contiguous with low BAT numbers */
|
|
if (bat == DBAT3)
|
|
bat = DBAT4 - 1;
|
|
#endif
|
|
}
|
|
}
|
|
#endif
|