mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-07-22 19:09:43 +09:00
83d290c56f
When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com>
102 lines
1.9 KiB
C
102 lines
1.9 KiB
C
// SPDX-License-Identifier: GPL-2.0+
|
|
/*
|
|
* Copyright 2004,2009-2011 Freescale Semiconductor, Inc.
|
|
* Jeff Brown
|
|
* Srikanth Srinivasan (srikanth.srinivasan@freescale.com)
|
|
*/
|
|
|
|
/*
|
|
* 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
|