[AVR32] Make STK1000 mux settings configurable

This adds some STK1002-specific config options covering the jumper settings,
so the kernel can automatically be configured to include the relevant devices.

One of them replaces the previous internal SW2_DEFAULT setting; SPI config
is affected by two of the jumpers; and a fourth one switches between LCD and
the second Ethernet connector.  (There's more that to be done.)

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>

3 files changed, 80 insertions, 7 deletions

diff --git a/arch/avr32/Kconfig b/arch/avr32/Kconfig
index 8f37a14e6378..d12346aaa88b 100644
--- a/arch/avr32/Kconfig
+++ b/arch/avr32/Kconfig
@@ -113,6 +113,10 @@ config BOARD_ATNGW100
         bool "ATNGW100 Network Gateway"
 endchoice
 
+if BOARD_ATSTK1000
+source "arch/avr32/boards/atstk1000/Kconfig"
+endif
+
 choice
         prompt "Boot loader type"
         default LOADER_U_BOOT
diff --git a/arch/avr32/boards/atstk1000/Kconfig b/arch/avr32/boards/atstk1000/Kconfig
new file mode 100644
index 000000000000..71bc7d364fb7
--- /dev/null
+++ b/arch/avr32/boards/atstk1000/Kconfig
@@ -0,0 +1,53 @@
+# STK1000 customization
+
+if BOARD_ATSTK1002
+
+config BOARD_ATSTK1002_CUSTOM
+        bool "Non-default STK-1002 jumper settings"
+        help
+          You will normally leave the jumpers on the CPU card at their
+          default settings.  If you need to use certain peripherals,
+          you will need to change some of those jumpers.
+
+if BOARD_ATSTK1002_CUSTOM
+
+config BOARD_ATSTK1002_SW1_CUSTOM
+        bool "SW1: use SSC1 (not SPI0)"
+        help
+          This also prevents using the external DAC as an audio interface,
+          and means you can't initialize the on-board QVGA display.
+
+config BOARD_ATSTK1002_SW2_CUSTOM
+        bool "SW2: use IRDA or TIMER0 (not UART-A, MMC/SD, and PS2-A)"
+        help
+          If you change this you'll want an updated boot loader putting
+          the console on UART-C not UART-A.
+
+config BOARD_ATSTK1002_SW3_CUSTOM
+        bool "SW3: use TIMER1 (not SSC0 and GCLK)"
+        help
+          This also prevents using the external DAC as an audio interface.
+
+config BOARD_ATSTK1002_SW4_CUSTOM
+        bool "SW4: use ISI/Camera (not GPIOs, SPI1, and PS2-B)"
+        help
+          To use the camera interface you'll need a custom card (on the
+          PCI-format connector) connect a video sensor.
+
+config BOARD_ATSTK1002_SW5_CUSTOM
+        bool "SW5: use MACB1 (not LCDC)"
+
+config BOARD_ATSTK1002_SW6_CUSTOM
+        bool "SW6: more GPIOs (not MACB0)"
+
+endif   # custom
+
+config BOARD_ATSTK1002_SPI1
+        bool "Configure SPI1 controller"
+        depends on !BOARD_ATSTK1002_SW4_CUSTOM
+        help
+          All the signals for the second SPI controller are available on
+          GPIO lines and accessed through the J1 jumper block.  Say "y"
+          here to configure that SPI controller.
+
+endif   # stk 1002
diff --git a/arch/avr32/boards/atstk1000/atstk1002.c b/arch/avr32/boards/atstk1000/atstk1002.c
index e253e86a1a39..6b2187f35031 100644
--- a/arch/avr32/boards/atstk1000/atstk1002.c
+++ b/arch/avr32/boards/atstk1000/atstk1002.c
@@ -27,7 +27,6 @@
 
 #include "atstk1000.h"
 
-#define SW2_DEFAULT             /* MMCI and UART_A available */
 
 struct eth_addr {
         u8 addr[6];
@@ -36,6 +35,7 @@ struct eth_addr {
 static struct eth_addr __initdata hw_addr[2];
 static struct eth_platform_data __initdata eth_data[2];
 
+#ifndef CONFIG_BOARD_ATSTK1002_SW1_CUSTOM
 static struct spi_board_info spi0_board_info[] __initdata = {
         {
                 /* QVGA display */
@@ -45,6 +45,13 @@ static struct spi_board_info spi0_board_info[] __initdata = {
                 .mode           = SPI_MODE_3,
         },
 };
+#endif
+
+#ifdef CONFIG_BOARD_ATSTK1002_SPI1
+static struct spi_board_info spi1_board_info[] __initdata = { {
+        /* patch in custom entries here */
+} };
+#endif
 
 /*
  * The next two functions should go away as the boot loader is
@@ -103,10 +110,10 @@ static void __init set_hw_addr(struct platform_device *pdev)
 
 void __init setup_board(void)
 {
-#ifdef  SW2_DEFAULT
-        at32_map_usart(1, 0);   /* USART 1/A: /dev/ttyS0, DB9 */
-#else
+#ifdef  CONFIG_BOARD_ATSTK1002_SW2_CUSTOM
         at32_map_usart(0, 1);   /* USART 0/B: /dev/ttyS1, IRDA */
+#else
+        at32_map_usart(1, 0);   /* USART 1/A: /dev/ttyS0, DB9 */
 #endif
         /* USART 2/unused: expansion connector */
         at32_map_usart(3, 2);   /* USART 3/C: /dev/ttyS2, DB9 */
@@ -140,18 +147,27 @@ static int __init atstk1002_init(void)
 
         at32_add_system_devices();
 
-#ifdef  SW2_DEFAULT
-        at32_add_device_usart(0);
-#else
+#ifdef  CONFIG_BOARD_ATSTK1002_SW2_CUSTOM
         at32_add_device_usart(1);
+#else
+        at32_add_device_usart(0);
 #endif
         at32_add_device_usart(2);
 
         set_hw_addr(at32_add_device_eth(0, &eth_data[0]));
 
+#ifndef CONFIG_BOARD_ATSTK1002_SW1_CUSTOM
         at32_add_device_spi(0, spi0_board_info, ARRAY_SIZE(spi0_board_info));
+#endif
+#ifdef CONFIG_BOARD_ATSTK1002_SPI1
+        at32_add_device_spi(1, spi1_board_info, ARRAY_SIZE(spi1_board_info));
+#endif
+#ifdef CONFIG_BOARD_ATSTK1002_SW5_CUSTOM
+        set_hw_addr(at32_add_device_eth(1, &eth_data[1]));
+#else
         at32_add_device_lcdc(0, &atstk1000_lcdc_data,
                              fbmem_start, fbmem_size);
+#endif
 
         return 0;
 }