SMC_CONFIG is needed before the device tree is ready and some people

would rather not have mainboard settings like sio_gp1x_config in the
device tree anyway.  So found a nice united home for both in Kconfig,
where users can change them without having to mess around in the C code.

Signed-off-by: Jens Rottmann <JRottmann@LiPPERTEmbedded.de>
Acked-by: Myles Watson <mylesgw@gmail.com>


git-svn-id: svn://svn.coreboot.org/coreboot/trunk@5760 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1

src/mainboard/lippert/roadrunner-lx/Kconfig

@@ -11,6 +11,8 @@ config BOARD_SPECIFIC_OPTIONS # dummy
 	select PIRQ_ROUTE
 	select UDELAY_TSC
 	select CACHE_AS_RAM
+	# Standard chip is a 512 KB FWH. Replacing it with a 1 MB
+	# SST 49LF008A is possible.
 	select BOARD_ROMSIZE_KB_512
 
 config MAINBOARD_DIR
@@ -29,4 +31,11 @@ config RAMBASE
 	hex
 	default 0x4000
 
+config ONBOARD_UARTS_RS485
+	bool "Switch on-board serial ports to RS485"
+	default n
+	help
+	  If selected, both on-board serial ports will operate in RS485 mode
+	  instead of RS232.
+
 endif # BOARD_LIPPERT_ROADRUNNER_LX

src/mainboard/lippert/roadrunner-lx/chip.h

@@ -18,13 +18,6 @@
  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
  */
 
-/* Based on chip.h from AMD's DB800 mainboard. */
-
-#include <stdint.h>
-
 extern struct chip_operations mainboard_ops;
 
-struct mainboard_config {
+struct mainboard_config {};
-	/* bit5 = Live LED, bit2 = RS485_EN2, bit1 = RS485_EN1 */
-	u8 sio_gp1x_config;
-};

src/mainboard/lippert/roadrunner-lx/mainboard.c

@@ -29,6 +29,13 @@
 #include <device/pci_ids.h>
 #include "chip.h"
 
+/* Bit1 switches Com1 to RS485, bit2 same for Com2, bit5 turns off the Live LED. */
+#if CONFIG_ONBOARD_UARTS_RS485
+	#define SIO_GP1X_CONFIG 0x26
+#else
+	#define SIO_GP1X_CONFIG 0x20
+#endif
+
 static const u16 ec_init_table[] = {	/* hi=data, lo=index */
 	0x1900,		/* Enable monitoring */
 	0x0351,		/* TMPIN1,2 diode mode, TMPIN3 off */
@@ -40,7 +47,6 @@ static const u16 ec_init_table[] = {	/* hi=data, lo=index */
 
 static void init(struct device *dev)
 {
-	struct mainboard_config *mb = dev->chip_info;
 	unsigned int gpio_base, i;
 	printk(BIOS_DEBUG, "LiPPERT RoadRunner-LX ENTER %s\n", __func__);
 
@@ -61,7 +67,8 @@ static void init(struct device *dev)
 		outb(val >> 8, 0x0296);
 	}
 
-	outb(mb->sio_gp1x_config, 0x1220); /* Simple-I/O GP17-10 */
+	/* bit5 = Live LED, bit2 = RS485_EN2, bit1 = RS485_EN1 */
+	outb(SIO_GP1X_CONFIG, 0x1220); /* Simple-I/O GP17-10 */
 	printk(BIOS_DEBUG, "LiPPERT RoadRunner-LX EXIT %s\n", __func__);
 }
 

src/mainboard/lippert/roadrunner-lx/romstage.c

@@ -132,4 +132,3 @@ void main(unsigned long bist)
 	/* Memory is setup. Return to cache_as_ram.inc and continue to boot. */
 	return;
 }
-

src/mainboard/lippert/spacerunner-lx/Kconfig

@@ -12,6 +12,8 @@ config BOARD_SPECIFIC_OPTIONS # dummy
 	select PIRQ_ROUTE
 	select UDELAY_TSC
 	select CACHE_AS_RAM
+	# Board is equipped with a 1 MB SPI flash, however, due to limitations
+	# of the IT8712F Super I/O, only the top 512 KB are directly mapped.
 	select BOARD_ROMSIZE_KB_512
 
 config MAINBOARD_DIR
@@ -30,4 +32,17 @@ config RAMBASE
 	hex
 	default 0x4000
 
+config ONBOARD_UARTS_RS485
+	bool "Switch on-board serial ports to RS485"
+	default n
+	help
+	  If selected, both on-board serial ports will operate in RS485 mode
+	  instead of RS232.
+
+config ONBOARD_IDE_SLAVE
+	bool "Make on-board SSD act as Slave"
+	default n
+	help
+	  If selected, the on-board SSD will act as IDE Slave instead of Master.
+
 endif # BOARD_LIPPERT_SPACERUNNER_LX

src/mainboard/lippert/spacerunner-lx/chip.h

@@ -18,13 +18,6 @@
  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
  */
 
-/* Based on chip.h from AMD's DB800 mainboard. */
-
-#include <stdint.h>
-
 extern struct chip_operations mainboard_ops;
 
-struct mainboard_config {
+struct mainboard_config {};
-	/* bit2 = RS485_EN2, bit1 = RS485_EN1, bit0 = Live LED */
-	u8 sio_gp1x_config;
-};

src/mainboard/lippert/spacerunner-lx/mainboard.c

@@ -29,6 +29,13 @@
 #include <device/pci_ids.h>
 #include "chip.h"
 
+/* Bit0 turns off the Live LED, bit1 switches Com1 to RS485, bit2 same for Com2. */
+#if CONFIG_ONBOARD_UARTS_RS485
+	#define SIO_GP1X_CONFIG 0x07
+#else
+	#define SIO_GP1X_CONFIG 0x01
+#endif
+
 static const u16 ec_init_table[] = { /* hi=data, lo=index */
 	0x1900,		/* Enable monitoring */
 	0x3050,		/* VIN4,5 enabled */
@@ -41,7 +48,6 @@ static const u16 ec_init_table[] = { /* hi=data, lo=index */
 
 static void init(struct device *dev)
 {
-	struct mainboard_config *mb = dev->chip_info;
 	unsigned int gpio_base, i;
 	printk(BIOS_DEBUG, "LiPPERT SpaceRunner-LX ENTER %s\n", __func__);
 
@@ -65,7 +71,9 @@ static void init(struct device *dev)
 		outb(val >> 8, 0x0296);
 	}
 
-	outb(mb->sio_gp1x_config, 0x1220); /* Simple-I/O GP17-10 */
+	/* bit2 = RS485_EN2, bit1 = RS485_EN1, bit0 = Live LED */
+	outb(SIO_GP1X_CONFIG, 0x1220); /* Simple-I/O GP17-10 */
+
 	printk(BIOS_DEBUG, "LiPPERT SpaceRunner-LX EXIT %s\n", __func__);
 }
 

src/mainboard/lippert/spacerunner-lx/romstage.c

@@ -41,7 +41,11 @@
 #include "superio/ite/it8712f/it8712f_early_serial.c"
 
 /* Bit0 enables Spread Spectrum, bit1 makes on-board SSD act as IDE slave. */
-#define SMC_CONFIG 0x01
+#if CONFIG_ONBOARD_IDE_SLAVE
+	#define SMC_CONFIG	0x03
+#else
+	#define SMC_CONFIG	0x01
+#endif
 
 #define ManualConf 1		/* No automatic strapped PLL config */
 #define PLLMSRhi 0x0000059C	/* Manual settings for the PLL */
@@ -201,4 +205,3 @@ void main(unsigned long bist)
 	/* Memory is setup. Return to cache_as_ram.inc and continue to boot. */
 	return;
 }
-