[mirror_ubuntu-artful-kernel.git] / arch / arm / mach-at91 / Kconfig

if ARCH_AT91

config HAVE_AT91_UTMI
	bool

config HAVE_AT91_USB_CLK
	bool

config COMMON_CLK_AT91
	bool
	select COMMON_CLK

config HAVE_AT91_SMD
	bool

config HAVE_AT91_H32MX
	bool

config SOC_SAMA5
	bool
	select ATMEL_AIC5_IRQ
	select COMMON_CLK_AT91
	select CPU_V7
	select GENERIC_CLOCKEVENTS
	select MEMORY
	select ATMEL_SDRAMC
	select PHYLIB if NETDEVICES

menu "Atmel AT91 System-on-Chip"

choice

	prompt "Core type"

config SOC_SAM_V4_V5
	bool "ARM9 AT91SAM9/AT91RM9200"
	help
	  Select this if you are using one of Atmel's AT91SAM9 or
	  AT91RM9200 SoC.

config SOC_SAM_V7
	bool "Cortex A5"
	help
	  Select this if you are using one of Atmel's SAMA5D3 SoC.

endchoice

comment "Atmel AT91 Processor"

if SOC_SAM_V7
config SOC_SAMA5D3
	bool "SAMA5D3 family"
	select SOC_SAMA5
	select HAVE_FB_ATMEL
	select HAVE_AT91_UTMI
	select HAVE_AT91_SMD
	select HAVE_AT91_USB_CLK
	help
	  Select this if you are using one of Atmel's SAMA5D3 family SoC.
	  This support covers SAMA5D31, SAMA5D33, SAMA5D34, SAMA5D35, SAMA5D36.

config SOC_SAMA5D4
	bool "SAMA5D4 family"
	select SOC_SAMA5
	select CLKSRC_MMIO
	select CACHE_L2X0
	select HAVE_FB_ATMEL
	select HAVE_AT91_UTMI
	select HAVE_AT91_SMD
	select HAVE_AT91_USB_CLK
	select HAVE_AT91_H32MX
	help
	  Select this if you are using one of Atmel's SAMA5D4 family SoC.
endif

if SOC_SAM_V4_V5
config SOC_AT91RM9200
	bool "AT91RM9200"
	select ATMEL_AIC_IRQ
	select COMMON_CLK_AT91
	select CPU_ARM920T
	select GENERIC_CLOCKEVENTS
	select HAVE_AT91_USB_CLK

config SOC_AT91SAM9
	bool "AT91SAM9"
	select ATMEL_AIC_IRQ
	select ATMEL_SDRAMC
	select COMMON_CLK_AT91
	select CPU_ARM926T
	select GENERIC_CLOCKEVENTS
	select HAVE_AT91_SMD
	select HAVE_AT91_USB_CLK
	select HAVE_AT91_UTMI
	select HAVE_FB_ATMEL
	select MEMORY
	help
	  Select this if you are using one of those Atmel SoC:
	    AT91SAM9260
	    AT91SAM9261
	    AT91SAM9263
	    AT91SAM9G15
	    AT91SAM9G20
	    AT91SAM9G25
	    AT91SAM9G35
	    AT91SAM9G45
	    AT91SAM9G46
	    AT91SAM9M10
	    AT91SAM9M11
	    AT91SAM9N12
	    AT91SAM9RL
	    AT91SAM9X25
	    AT91SAM9X35
	    AT91SAM9XE
endif # SOC_SAM_V4_V5

comment "AT91 Feature Selections"

config AT91_SLOW_CLOCK
	bool "Suspend-to-RAM disables main oscillator"
	select SRAM
	depends on SUSPEND
	help
	  Select this if you want Suspend-to-RAM to save the most power
	  possible (without powering off the CPU) by disabling the PLLs
	  and main oscillator so that only the 32 KiHz clock is available.

	  When only that slow-clock is available, some peripherals lose
	  functionality.  Many can't issue wakeup events unless faster
	  clocks are available.  Some lose their operating state and
	  need to be completely re-initialized.

config AT91_TIMER_HZ
       int "Kernel HZ (jiffies per second)"
       range 32 1024
       depends on ARCH_AT91
       default "128" if SOC_AT91RM9200
       default "100"
       help
	  On AT91rm9200 chips where you're using a system clock derived
	  from the 32768 Hz hardware clock, this tick rate should divide
	  it exactly: use a power-of-two value, such as 128 or 256, to
	  reduce timing errors caused by rounding.

	  On AT91sam926x chips, or otherwise when using a higher precision
	  system clock (of at least several MHz), rounding is less of a
	  problem so it can be safer to use a decimal values like 100.

endmenu

endif
Commit	Line	Data
8fc5ffa0 AV	1	if ARCH_AT91
8fc5ffa0 AV	2
f090fb37 BB	3	config HAVE_AT91_UTMI
	4	bool
	5
c84a61d8 BB	6	config HAVE_AT91_USB_CLK
	7	bool
	8
c8a8c630 BB	9	config COMMON_CLK_AT91
c8a8c630 BB	10	bool
c8a8c630 BB	11	select COMMON_CLK
c8a8c630 BB	12
a9c0688f BB	13	config HAVE_AT91_SMD
	14	bool
	15
bcc5fd49 AB	16	config HAVE_AT91_H32MX
	17	bool
	18
8f4b4794 LD	19	config SOC_SAMA5
8f4b4794 LD	20	bool
3b26f39b	21	select ATMEL_AIC5_IRQ
ef7eda2c	22	select COMMON_CLK_AT91
8f4b4794 LD	23	select CPU_V7
8f4b4794 LD	24	select GENERIC_CLOCKEVENTS
63e60368 AB	25	select MEMORY
63e60368 AB	26	select ATMEL_SDRAMC
93d2cf46	27	select PHYLIB if NETDEVICES
8f4b4794	28
8fc5ffa0 AV	29	menu "Atmel AT91 System-on-Chip"
8fc5ffa0 AV	30
8f0cdcc5 LD	31	choice
	32
	33	prompt "Core type"
	34
	35	config SOC_SAM_V4_V5
fe138c23	36	bool "ARM9 AT91SAM9/AT91RM9200"
8f0cdcc5	37	help
fe138c23 AB	38	Select this if you are using one of Atmel's AT91SAM9 or
fe138c23 AB	39	AT91RM9200 SoC.
8f0cdcc5	40
8f4b4794 LD	41	config SOC_SAM_V7
	42	bool "Cortex A5"
	43	help
	44	Select this if you are using one of Atmel's SAMA5D3 SoC.
	45
8f0cdcc5 LD	46	endchoice
8f0cdcc5 LD	47
1e3ce2b8	48	comment "Atmel AT91 Processor"
8fc5ffa0	49
8f4b4794 LD	50	if SOC_SAM_V7
	51	config SOC_SAMA5D3
	52	bool "SAMA5D3 family"
8f4b4794 LD	53	select SOC_SAMA5
8f4b4794 LD	54	select HAVE_FB_ATMEL
f090fb37	55	select HAVE_AT91_UTMI
a9c0688f	56	select HAVE_AT91_SMD
c84a61d8	57	select HAVE_AT91_USB_CLK
8f4b4794 LD	58	help
8f4b4794 LD	59	Select this if you are using one of Atmel's SAMA5D3 family SoC.
7f457160	60	This support covers SAMA5D31, SAMA5D33, SAMA5D34, SAMA5D35, SAMA5D36.
2dc850b6 NF	61
	62	config SOC_SAMA5D4
	63	bool "SAMA5D4 family"
	64	select SOC_SAMA5
2dc850b6 NF	65	select CLKSRC_MMIO
2dc850b6 NF	66	select CACHE_L2X0
2dc850b6 NF	67	select HAVE_FB_ATMEL
	68	select HAVE_AT91_UTMI
	69	select HAVE_AT91_SMD
	70	select HAVE_AT91_USB_CLK
	71	select HAVE_AT91_H32MX
	72	help
	73	Select this if you are using one of Atmel's SAMA5D4 family SoC.
8f4b4794 LD	74	endif
8f4b4794 LD	75
8f0cdcc5	76	if SOC_SAM_V4_V5
1e3ce2b8	77	config SOC_AT91RM9200
8fc5ffa0	78	bool "AT91RM9200"
ef7eda2c NF	79	select ATMEL_AIC_IRQ
ef7eda2c NF	80	select COMMON_CLK_AT91
c750815e	81	select CPU_ARM920T
5e802dfa	82	select GENERIC_CLOCKEVENTS
c84a61d8	83	select HAVE_AT91_USB_CLK
73a59c1c	84
2b019a43 AB	85	config SOC_AT91SAM9
	86	bool "AT91SAM9"
	87	select ATMEL_AIC_IRQ
	88	select ATMEL_SDRAMC
	89	select COMMON_CLK_AT91
	90	select CPU_ARM926T
	91	select GENERIC_CLOCKEVENTS
a9c0688f	92	select HAVE_AT91_SMD
c84a61d8	93	select HAVE_AT91_USB_CLK
2b019a43	94	select HAVE_AT91_UTMI
74db4fb9	95	select HAVE_FB_ATMEL
2b019a43	96	select MEMORY
74db4fb9	97	help
2b019a43 AB	98	Select this if you are using one of those Atmel SoC:
	99	AT91SAM9260
	100	AT91SAM9261
	101	AT91SAM9263
	102	AT91SAM9G15
	103	AT91SAM9G20
	104	AT91SAM9G25
	105	AT91SAM9G35
	106	AT91SAM9G45
	107	AT91SAM9G46
	108	AT91SAM9M10
	109	AT91SAM9M11
	110	AT91SAM9N12
	111	AT91SAM9RL
	112	AT91SAM9X25
	113	AT91SAM9X35
	114	AT91SAM9XE
fe138c23 AB	115	endif # SOC_SAM_V4_V5
fe138c23 AB	116
8fc5ffa0	117	comment "AT91 Feature Selections"
73a59c1c	118
eaad2db0 AV	119	config AT91_SLOW_CLOCK
eaad2db0 AV	120	bool "Suspend-to-RAM disables main oscillator"
d2e46790	121	select SRAM
eaad2db0 AV	122	depends on SUSPEND
	123	help
	124	Select this if you want Suspend-to-RAM to save the most power
	125	possible (without powering off the CPU) by disabling the PLLs
	126	and main oscillator so that only the 32 KiHz clock is available.
	127
	128	When only that slow-clock is available, some peripherals lose
	129	functionality. Many can't issue wakeup events unless faster
	130	clocks are available. Some lose their operating state and
	131	need to be completely re-initialized.
	132
5248c657 DB	133	config AT91_TIMER_HZ
	134	int "Kernel HZ (jiffies per second)"
	135	range 32 1024
	136	depends on ARCH_AT91
e152015b	137	default "128" if SOC_AT91RM9200
5248c657 DB	138	default "100"
	139	help
	140	On AT91rm9200 chips where you're using a system clock derived
	141	from the 32768 Hz hardware clock, this tick rate should divide
	142	it exactly: use a power-of-two value, such as 128 or 256, to
	143	reduce timing errors caused by rounding.
	144
	145	On AT91sam926x chips, or otherwise when using a higher precision
	146	system clock (of at least several MHz), rounding is less of a
	147	problem so it can be safer to use a decimal values like 100.
	148
73a59c1c SP	149	endmenu
	150
	151	endif