SB800: Add IMC ROM and fan control.

Add configuration for AMD's IMC ROM and fan registers for cimx/sb800
platforms.

- Allows user to add the IMC rom to the build and to configure the
  location of the "signature" between the allowed positions.
- Allows for no fan control, manual setup of SB800 Fan registers, or
  setup of the IMC fan configuration registers.
- Register configuration is done through devicetree.cb. No files need
  to be added for new platform configuration.
- Initial setup is for Persimmon, but may be extended to any cimx/sb800
  platform.

Change-Id: Ib06408d794988cbb29eed6adbeeadea8b2629bae
Signed-off-by: Martin Roth <martin@se-eng.com>
Reviewed-on: http://review.coreboot.org/1977
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
Reviewed-by: Marc Jones <marcj303@gmail.com>

1 files changed, 7 insertions, 0 deletions

diff --git a/src/southbridge/amd/cimx/sb800/late.c b/src/southbridge/amd/cimx/sb800/late.c
index 6067e39471..ef3a34b796 100644
--- a/src/southbridge/amd/cimx/sb800/late.c
+++ b/src/southbridge/amd/cimx/sb800/late.c
@@ -32,6 +32,7 @@
 #include "chip.h"		/* struct southbridge_amd_cimx_sb800_config */
 #include "sb_cimx.h"		/* AMD CIMX wrapper entries */
 #include "smbus.h"
+#include "fan.h"
 
 /*implement in mainboard.c*/
 void set_pcie_reset(void);
@@ -418,6 +419,12 @@ static void sb800_enable(device_t dev)
 
 
 	case (0x14 << 3) | 3: /* 0:14:3 LPC */
+		/* Initialize the fans */
+#if CONFIG_SB800_IMC_FAN_CONTROL
+		init_sb800_IMC_fans(dev);
+#elif CONFIG_SB800_MANUAL_FAN_CONTROL
+		init_sb800_MANUAL_fans(dev);
+#endif
 		break;
 
 	case (0x14 << 3) | 4: /* 0:14:4 PCI */