mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-10-02 01:20:47 +09:00
AT91: convert cpu.c to struct SoC access
Signed-off-by: Reinhard Meyer <u-boot@emk-elektronik.de>
This commit is contained in:
parent
38bda019e4
commit
6341c5cf87
@ -1,4 +1,6 @@
|
||||
/*
|
||||
* (C) Copyright 2010
|
||||
* Reinhard Meyer, reinhard.meyer@emk-elektronik.de
|
||||
* (C) Copyright 2009
|
||||
* Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
|
||||
*
|
||||
@ -22,12 +24,10 @@
|
||||
*/
|
||||
|
||||
#include <common.h>
|
||||
#ifdef CONFIG_AT91_LEGACY
|
||||
#warning Your board is using legacy SoC access. Please update!
|
||||
#endif
|
||||
|
||||
#include <asm/arch/hardware.h>
|
||||
#include <asm/arch/at91_pmc.h>
|
||||
#include <asm/arch/at91_gpbr.h>
|
||||
#include <asm/arch/clk.h>
|
||||
#include <asm/arch/io.h>
|
||||
|
||||
@ -35,13 +35,6 @@
|
||||
#define CONFIG_SYS_AT91_MAIN_CLOCK 0
|
||||
#endif
|
||||
|
||||
/*
|
||||
* The at91sam9260 has 4 GPBR (0-3), we'll use the last one, nr 3,
|
||||
* to keep track of the bootcount.
|
||||
*/
|
||||
#define AT91_GPBR_BOOTCOUNT_REGISTER 3
|
||||
#define AT91_BOOTCOUNT_ADDRESS (AT91_GPBR + 4*AT91_GPBR_BOOTCOUNT_REGISTER)
|
||||
|
||||
int arch_cpu_init(void)
|
||||
{
|
||||
return at91_clock_init(CONFIG_SYS_AT91_MAIN_CLOCK);
|
||||
@ -66,27 +59,26 @@ int print_cpuinfo(void)
|
||||
|
||||
#ifdef CONFIG_BOOTCOUNT_LIMIT
|
||||
/*
|
||||
* Just as the mpc5xxx, we combine the BOOTCOUNT_MAGIC and boocount
|
||||
* in one 32-bit register. This is done, as the AT91SAM9260 only has
|
||||
* 4 GPBR.
|
||||
* We combine the BOOTCOUNT_MAGIC and bootcount in one 32-bit register.
|
||||
* This is done so we need to use only one of the four GPBR registers.
|
||||
*/
|
||||
void bootcount_store (ulong a)
|
||||
{
|
||||
volatile ulong *save_addr =
|
||||
(volatile ulong *)(AT91_BASE_SYS + AT91_BOOTCOUNT_ADDRESS);
|
||||
at91_gpbr_t *gpbr = (at91_gpbr_t *) AT91_GPR_BASE;
|
||||
|
||||
*save_addr = (BOOTCOUNT_MAGIC & 0xffff0000) | (a & 0x0000ffff);
|
||||
writel((BOOTCOUNT_MAGIC & 0xffff0000) | (a & 0x0000ffff),
|
||||
&gpbr->reg[AT91_GPBR_INDEX_BOOTCOUNT]);
|
||||
}
|
||||
|
||||
ulong bootcount_load (void)
|
||||
{
|
||||
volatile ulong *save_addr =
|
||||
(volatile ulong *)(AT91_BASE_SYS + AT91_BOOTCOUNT_ADDRESS);
|
||||
at91_gpbr_t *gpbr = (at91_gpbr_t *) AT91_GPR_BASE;
|
||||
|
||||
if ((*save_addr & 0xffff0000) != (BOOTCOUNT_MAGIC & 0xffff0000))
|
||||
ulong val = readl(&gpbr->reg[AT91_GPBR_INDEX_BOOTCOUNT]);
|
||||
if ((val & 0xffff0000) != (BOOTCOUNT_MAGIC & 0xffff0000))
|
||||
return 0;
|
||||
else
|
||||
return (*save_addr & 0x0000ffff);
|
||||
return val & 0x0000ffff;
|
||||
}
|
||||
|
||||
#endif /* CONFIG_BOOTCOUNT_LIMIT */
|
||||
|
Loading…
Reference in New Issue
Block a user