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ARM: at91: fix PM initialization for newer SoCs 

Newer SoCs: at91sam9x5, at91sam9n12, sama5d3 and sama5d4 embed a DDR controller
and have a different PMC status register layout than the at91sam9g45. Create
another at91_sam9x5_pm_init() function to match this compatibility.

Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
hifive-unleashed-5.1
Nicolas Ferre 2015-01-22 16:54:50 +01:00
parent 42dfd1e10c
commit bf02280e43
4 changed files with 30 additions and 1 deletions
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20
arch/arm/mach-at91/board-dt-sam9.c
View File

@ -61,3 +61,23 @@ DT_MACHINE_START(at91sam9g45_dt, "Atmel AT91SAM9G45")
.init_machine = sam9g45_dt_device_init,
.dt_compat = at91_9g45_board_compat,
MACHINE_END
static void __init sam9x5_dt_device_init(void)
{
at91_sam9x5_pm_init();
of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL);
}
static const char *at91_9x5_board_compat[] __initconst = {
"atmel,at91sam9x5",
"atmel,at91sam9n12",
NULL
};
DT_MACHINE_START(at91sam9x5_dt, "Atmel AT91SAM9")
/* Maintainer: Atmel */
.map_io = at91_map_io,
.init_early = at91_dt_initialize,
.init_machine = sam9x5_dt_device_init,
.dt_compat = at91_9x5_board_compat,
MACHINE_END

2
arch/arm/mach-at91/board-dt-sama5.c
View File

@ -28,7 +28,7 @@
static void __init sama5_dt_device_init(void)
{
at91_sam9260_pm_init();
at91_sam9x5_pm_init();
of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL);
}

2
arch/arm/mach-at91/generic.h
View File

@ -36,10 +36,12 @@ extern void at91_ioremap_matrix(u32 base_addr);
extern void __init at91_rm9200_pm_init(void);
extern void __init at91_sam9260_pm_init(void);
extern void __init at91_sam9g45_pm_init(void);
extern void __init at91_sam9x5_pm_init(void);
#else
void __init at91_rm9200_pm_init(void) { }
void __init at91_sam9260_pm_init(void) { }
void __init at91_sam9g45_pm_init(void) { }
void __init at91_sam9x5_pm_init(void) { }
#endif
#endif /* _AT91_GENERIC_H */

7
arch/arm/mach-at91/pm.c
View File

@ -306,3 +306,10 @@ void __init at91_sam9g45_pm_init(void)
at91_pm_data.memctrl = AT91_MEMCTRL_DDRSDR;
return at91_pm_init();
}
void __init at91_sam9x5_pm_init(void)
{
at91_pm_data.uhp_udp_mask = AT91SAM926x_PMC_UHP | AT91SAM926x_PMC_UDP;
at91_pm_data.memctrl = AT91_MEMCTRL_DDRSDR;
return at91_pm_init();
}