linux-stable/arch/arm/mach-at91/at91sam9.c
Alexandre Belloni b32de9dd38 ARM: at91: move SoC detection to its own driver
To simplify machine init and as the soc_device struct is not used as the
parent for on-chip devices anymore, move SoC detection to its own driver.

Change in dmesg:
 - before:
DMA: preallocated 256 KiB pool for atomic coherent allocations
AT91: Detected SoC family: sama5d2
AT91: Detected SoC: sama5d27, revision 0
No ATAGs?
clocksource: tcb_clksrc: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 184217874325 ns
at_xdmac f0010000.dma-controller: 16 channels, mapped at 0xe085b000
SCSI subsystem initialized

 - after:
DMA: preallocated 256 KiB pool for atomic coherent allocations
No ATAGs?
clocksource: tcb_clksrc: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 184217874325 ns
at_xdmac f0010000.dma-controller: 16 channels, mapped at 0xe0859000
AT91: Detected SoC family: sama5d2
AT91: Detected SoC: sama5d27, revision 0
SCSI subsystem initialized

Suggested-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2017-03-31 20:36:10 +02:00

34 lines
662 B
C

/*
* Setup code for AT91SAM9
*
* Copyright (C) 2011 Atmel,
* 2011 Nicolas Ferre <nicolas.ferre@atmel.com>
*
* Licensed under GPLv2 or later.
*/
#include <linux/of.h>
#include <linux/of_platform.h>
#include <asm/mach/arch.h>
#include <asm/system_misc.h>
#include "generic.h"
static void __init at91sam9_init(void)
{
of_platform_default_populate(NULL, NULL, NULL);
at91sam9_pm_init();
}
static const char *const at91_dt_board_compat[] __initconst = {
"atmel,at91sam9",
NULL
};
DT_MACHINE_START(at91sam_dt, "Atmel AT91SAM9")
/* Maintainer: Atmel */
.init_machine = at91sam9_init,
.dt_compat = at91_dt_board_compat,
MACHINE_END