at91: Kconfig simplification
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>
diff --git a/arch/arm/mach-at91/Kconfig b/arch/arm/mach-at91/Kconfig
index 4301c6b..bb4cd27 100644
--- a/arch/arm/mach-at91/Kconfig
+++ b/arch/arm/mach-at91/Kconfig
@@ -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
@@ -10,12 +25,16 @@
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"
@@ -40,18 +59,23 @@
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"
@@ -82,12 +106,14 @@
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>
@@ -135,6 +161,7 @@
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>
@@ -168,6 +195,8 @@
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>
@@ -180,6 +209,7 @@
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>
@@ -220,6 +250,8 @@
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>
@@ -234,6 +266,8 @@
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>
@@ -248,6 +282,8 @@
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>
@@ -260,6 +296,7 @@
config MACH_NEOCORE926
bool "Adeneo NEOCORE926"
+ select HAVE_AT91_DATAFLASH_CARD
help
Select this if you are using the Adeneo Neocore 926 board.
@@ -286,12 +323,15 @@
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
@@ -313,6 +353,7 @@
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
@@ -328,6 +369,8 @@
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>
@@ -356,13 +399,13 @@
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).
@@ -424,15 +467,15 @@
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