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at91: Kconfig simplification
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Instead of adding "depends on" at config level, introduce HAVE_* config
variables. Add them at machine or soc level to specify the ability of a
particular support.
It will ease new board introduction and readability.

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Acked-by: Andrew Victor <linux@maxim.org.za>
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Jean-Christophe PLAGNIOL-VILLARD authored and Nicolas Ferre committed Nov 16, 2009
1 parent c4e4ab9 commit 2ef9f59
Showing 1 changed file with 48 additions and 5 deletions.
53 changes: 48 additions & 5 deletions arch/arm/mach-at91/Kconfig
View file
Original file line number Diff line number Diff line change
@@ -1,5 +1,20 @@
if ARCH_AT91

config HAVE_AT91_DATAFLASH_CARD
bool

config HAVE_NAND_ATMEL_BUSWIDTH_16
bool

config HAVE_AT91_USART3
bool

config HAVE_AT91_USART4
bool

config HAVE_AT91_USART5
bool

menu "Atmel AT91 System-on-Chip"

choice
Expand All @@ -10,12 +25,16 @@ config ARCH_AT91RM9200
select CPU_ARM920T
select GENERIC_TIME
select GENERIC_CLOCKEVENTS
select HAVE_AT91_USART3

config ARCH_AT91SAM9260
bool "AT91SAM9260 or AT91SAM9XE"
select CPU_ARM926T
select GENERIC_TIME
select GENERIC_CLOCKEVENTS
select HAVE_AT91_USART3
select HAVE_AT91_USART4
select HAVE_AT91_USART5

config ARCH_AT91SAM9261
bool "AT91SAM9261"
Expand All @@ -40,18 +59,23 @@ config ARCH_AT91SAM9RL
select CPU_ARM926T
select GENERIC_TIME
select GENERIC_CLOCKEVENTS
select HAVE_AT91_USART3

config ARCH_AT91SAM9G20
bool "AT91SAM9G20"
select CPU_ARM926T
select GENERIC_TIME
select GENERIC_CLOCKEVENTS
select HAVE_AT91_USART3
select HAVE_AT91_USART4
select HAVE_AT91_USART5

config ARCH_AT91SAM9G45
bool "AT91SAM9G45"
select CPU_ARM926T
select GENERIC_TIME
select GENERIC_CLOCKEVENTS
select HAVE_AT91_USART3

config ARCH_AT91CAP9
bool "AT91CAP9"
Expand Down Expand Up @@ -82,12 +106,14 @@ config MACH_ONEARM

config ARCH_AT91RM9200DK
bool "Atmel AT91RM9200-DK Development board"
select HAVE_AT91_DATAFLASH_CARD
help
Select this if you are using Atmel's AT91RM9200-DK Development board.
(Discontinued)

config MACH_AT91RM9200EK
bool "Atmel AT91RM9200-EK Evaluation Kit"
select HAVE_AT91_DATAFLASH_CARD
help
Select this if you are using Atmel's AT91RM9200-EK Evaluation Kit.
<http://www.atmel.com/dyn/products/tools_card.asp?tool_id=3507>
Expand Down Expand Up @@ -135,6 +161,7 @@ config MACH_KAFA

config MACH_ECBAT91
bool "emQbit ECB_AT91 SBC"
select HAVE_AT91_DATAFLASH_CARD
help
Select this if you are using emQbit's ECB_AT91 board.
<http://wiki.emqbit.com/free-ecb-at91>
Expand Down Expand Up @@ -168,6 +195,8 @@ comment "AT91SAM9260 / AT91SAM9XE Board Type"

config MACH_AT91SAM9260EK
bool "Atmel AT91SAM9260-EK / AT91SAM9XE Evaluation Kit"
select HAVE_AT91_DATAFLASH_CARD
select HAVE_NAND_ATMEL_BUSWIDTH_16
help
Select this if you are using Atmel's AT91SAM9260-EK or AT91SAM9XE Evaluation Kit
<http://www.atmel.com/dyn/products/tools_card.asp?tool_id=3933>
Expand All @@ -180,6 +209,7 @@ config MACH_CAM60

config MACH_SAM9_L9260
bool "Olimex SAM9-L9260 board"
select HAVE_AT91_DATAFLASH_CARD
help
Select this if you are using Olimex's SAM9-L9260 board based on the Atmel AT91SAM9260.
<http://www.olimex.com/dev/sam9-L9260.html>
Expand Down Expand Up @@ -220,6 +250,8 @@ comment "AT91SAM9261 Board Type"

config MACH_AT91SAM9261EK
bool "Atmel AT91SAM9261-EK Evaluation Kit"
select HAVE_AT91_DATAFLASH_CARD
select HAVE_NAND_ATMEL_BUSWIDTH_16
help
Select this if you are using Atmel's AT91SAM9261-EK Evaluation Kit.
<http://www.atmel.com/dyn/products/tools_card.asp?tool_id=3820>
Expand All @@ -234,6 +266,8 @@ comment "AT91SAM9G10 Board Type"

config MACH_AT91SAM9G10EK
bool "Atmel AT91SAM9G10-EK Evaluation Kit"
select HAVE_AT91_DATAFLASH_CARD
select HAVE_NAND_ATMEL_BUSWIDTH_16
help
Select this if you are using Atmel's AT91SAM9G10-EK Evaluation Kit.
<http://www.atmel.com/dyn/products/tools_card.asp?tool_id=4588>
Expand All @@ -248,6 +282,8 @@ comment "AT91SAM9263 Board Type"

config MACH_AT91SAM9263EK
bool "Atmel AT91SAM9263-EK Evaluation Kit"
select HAVE_AT91_DATAFLASH_CARD
select HAVE_NAND_ATMEL_BUSWIDTH_16
help
Select this if you are using Atmel's AT91SAM9263-EK Evaluation Kit.
<http://www.atmel.com/dyn/products/tools_card.asp?tool_id=4057>
Expand All @@ -260,6 +296,7 @@ config MACH_USB_A9263

config MACH_NEOCORE926
bool "Adeneo NEOCORE926"
select HAVE_AT91_DATAFLASH_CARD
help
Select this if you are using the Adeneo Neocore 926 board.

Expand All @@ -286,12 +323,15 @@ comment "AT91SAM9G20 Board Type"

config MACH_AT91SAM9G20EK
bool "Atmel AT91SAM9G20-EK Evaluation Kit"
select HAVE_AT91_DATAFLASH_CARD
select HAVE_NAND_ATMEL_BUSWIDTH_16
help
Select this if you are using Atmel's AT91SAM9G20-EK Evaluation Kit
that embeds only one SD/MMC slot.

config MACH_AT91SAM9G20EK_2MMC
bool "Atmel AT91SAM9G20-EK Evaluation Kit with 2 SD/MMC Slots"
select HAVE_NAND_ATMEL_BUSWIDTH_16
help
Select this if you are using an Atmel AT91SAM9G20-EK Evaluation Kit
with 2 SD/MMC Slots. This is the case for AT91SAM9G20-EK rev. C and
Expand All @@ -313,6 +353,7 @@ comment "AT91SAM9G45 Board Type"

config MACH_AT91SAM9G45EKES
bool "Atmel AT91SAM9G45-EKES Evaluation Kit"
select HAVE_NAND_ATMEL_BUSWIDTH_16
help
Select this if you are using Atmel's AT91SAM9G45-EKES Evaluation Kit.
"ES" at the end of the name means that this board is an
Expand All @@ -328,6 +369,8 @@ comment "AT91CAP9 Board Type"

config MACH_AT91CAP9ADK
bool "Atmel AT91CAP9A-DK Evaluation Kit"
select HAVE_AT91_DATAFLASH_CARD
select HAVE_NAND_ATMEL_BUSWIDTH_16
help
Select this if you are using Atmel's AT91CAP9A-DK Evaluation Kit.
<http://www.atmel.com/dyn/products/tools_card.asp?tool_id=4138>
Expand Down Expand Up @@ -356,13 +399,13 @@ comment "AT91 Board Options"

config MTD_AT91_DATAFLASH_CARD
bool "Enable DataFlash Card support"
depends on (ARCH_AT91RM9200DK || MACH_AT91RM9200EK || MACH_AT91SAM9260EK || MACH_AT91SAM9261EK || MACH_AT91SAM9G10EK || MACH_AT91SAM9263EK || MACH_AT91SAM9G20EK || MACH_ECBAT91 || MACH_SAM9_L9260 || MACH_AT91CAP9ADK || MACH_NEOCORE926)
depends on HAVE_AT91_DATAFLASH_CARD
help
Enable support for the DataFlash card.

config MTD_NAND_ATMEL_BUSWIDTH_16
bool "Enable 16-bit data bus interface to NAND flash"
depends on (MACH_AT91SAM9260EK || MACH_AT91SAM9261EK || MACH_AT91SAM9G10EK || MACH_AT91SAM9263EK || MACH_AT91SAM9G20EK || MACH_AT91SAM9G20EK_2MMC || MACH_AT91SAM9G45EKES || MACH_AT91CAP9ADK)
depends on HAVE_NAND_ATMEL_BUSWIDTH_16
help
On AT91SAM926x boards both types of NAND flash can be present
(8 and 16 bit data bus width).
Expand Down Expand Up @@ -424,15 +467,15 @@ config AT91_EARLY_USART2

config AT91_EARLY_USART3
bool "USART3"
depends on (ARCH_AT91RM9200 || ARCH_AT91SAM9RL || ARCH_AT91SAM9260 || ARCH_AT91SAM9G20 || ARCH_AT91SAM9G45)
depends on HAVE_AT91_USART3

config AT91_EARLY_USART4
bool "USART4"
depends on ARCH_AT91SAM9260 || ARCH_AT91SAM9G20
depends on HAVE_AT91_USART4

config AT91_EARLY_USART5
bool "USART5"
depends on ARCH_AT91SAM9260 || ARCH_AT91SAM9G20
depends on HAVE_AT91_USART5

endchoice

Expand Down

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