AGESA boards: Clean up definition of BIOS_SIZE in platform_cfg

Clean up vendor code from hard coded #define if-def chain with a
pre-processor shift and subtract.

Change-Id: Ibce34ab576d7db8586a6ec8f9b2460268e0e1878
Signed-off-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>
Reviewed-on: http://review.coreboot.org/4811
Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
Tested-by: build bot (Jenkins)

5 files changed, 30 insertions, 108 deletions

diff --git a/src/mainboard/amd/inagua/platform_cfg.h b/src/mainboard/amd/inagua/platform_cfg.h
index 1f602e240c..151f587e51 100644
--- a/src/mainboard/amd/inagua/platform_cfg.h
+++ b/src/mainboard/amd/inagua/platform_cfg.h
@@ -22,31 +22,15 @@
 #define _PLATFORM_CFG_H_
 
 /**
- * @def BIOS_SIZE_1M
- * @def BIOS_SIZE_2M
- * @def BIOS_SIZE_4M
- * @def BIOS_SIZE_8M
- */
-#define BIOS_SIZE_1M			0
-#define BIOS_SIZE_2M			1
-#define BIOS_SIZE_4M			3
-#define BIOS_SIZE_8M			7
-
-/* In SB800, default ROM size is 1M Bytes, if your platform ROM
+ * @def BIOS_SIZE -> BIOS_SIZE_{1,2,4,8,16}M
+ *
+ * In SB800, default ROM size is 1M Bytes, if your platform ROM
  * bigger than 1M you have to set the ROM size outside CIMx module and
  * before AGESA module get call.
  */
 #ifndef BIOS_SIZE
-#if CONFIG_COREBOOT_ROMSIZE_KB_1024
-#define BIOS_SIZE BIOS_SIZE_1M
-#elif CONFIG_COREBOOT_ROMSIZE_KB_2048 == 1
-#define BIOS_SIZE BIOS_SIZE_2M
-#elif CONFIG_COREBOOT_ROMSIZE_KB_4096 == 1
-#define BIOS_SIZE BIOS_SIZE_4M
-#elif CONFIG_COREBOOT_ROMSIZE_KB_8192 == 1
-#define BIOS_SIZE BIOS_SIZE_8M
-#endif
-#endif
+#define BIOS_SIZE ((CONFIG_COREBOOT_ROMSIZE_KB >> 10) - 1)
+#endif /* BIOS_SIZE */
 
 /**
  * @def SPREAD_SPECTRUM
diff --git a/src/mainboard/amd/persimmon/platform_cfg.h b/src/mainboard/amd/persimmon/platform_cfg.h
index 0578e27081..f084b2f170 100644
--- a/src/mainboard/amd/persimmon/platform_cfg.h
+++ b/src/mainboard/amd/persimmon/platform_cfg.h
@@ -22,31 +22,15 @@
 #define _PLATFORM_CFG_H_
 
 /**
- * @def BIOS_SIZE_1M
- * @def BIOS_SIZE_2M
- * @def BIOS_SIZE_4M
- * @def BIOS_SIZE_8M
- */
-#define BIOS_SIZE_1M			0
-#define BIOS_SIZE_2M			1
-#define BIOS_SIZE_4M			3
-#define BIOS_SIZE_8M			7
-
-/* In SB800, default ROM size is 1M Bytes, if your platform ROM
+ * @def BIOS_SIZE -> BIOS_SIZE_{1,2,4,8,16}M
+ *
+ * In SB800, default ROM size is 1M Bytes, if your platform ROM
  * bigger than 1M you have to set the ROM size outside CIMx module and
  * before AGESA module get call.
  */
 #ifndef BIOS_SIZE
-#if CONFIG_COREBOOT_ROMSIZE_KB_1024
-  #define BIOS_SIZE BIOS_SIZE_1M
-#elif CONFIG_COREBOOT_ROMSIZE_KB_2048 == 1
-  #define BIOS_SIZE BIOS_SIZE_2M
-#elif CONFIG_COREBOOT_ROMSIZE_KB_4096 == 1
-  #define BIOS_SIZE BIOS_SIZE_4M
-#elif CONFIG_COREBOOT_ROMSIZE_KB_8192 == 1
-  #define BIOS_SIZE BIOS_SIZE_8M
-#endif
-#endif
+#define BIOS_SIZE ((CONFIG_COREBOOT_ROMSIZE_KB >> 10) - 1)
+#endif /* BIOS_SIZE */
 
 /**
  * @def SPREAD_SPECTRUM
@@ -270,4 +254,4 @@ static const CODECTBLLIST codec_tablelist[] =
  */
 #define FADT_PM_PROFILE 1
 
-#endif
+#endif /* _PLATFORM_CFG_H_ */
diff --git a/src/mainboard/amd/south_station/platform_cfg.h b/src/mainboard/amd/south_station/platform_cfg.h
index a8888d20d8..151f587e51 100644
--- a/src/mainboard/amd/south_station/platform_cfg.h
+++ b/src/mainboard/amd/south_station/platform_cfg.h
@@ -22,31 +22,15 @@
 #define _PLATFORM_CFG_H_
 
 /**
- * @def BIOS_SIZE_1M
- * @def BIOS_SIZE_2M
- * @def BIOS_SIZE_4M
- * @def BIOS_SIZE_8M
- */
-#define BIOS_SIZE_1M			0
-#define BIOS_SIZE_2M			1
-#define BIOS_SIZE_4M			3
-#define BIOS_SIZE_8M			7
-
-/* In SB800, default ROM size is 1M Bytes, if your platform ROM
+ * @def BIOS_SIZE -> BIOS_SIZE_{1,2,4,8,16}M
+ *
+ * In SB800, default ROM size is 1M Bytes, if your platform ROM
  * bigger than 1M you have to set the ROM size outside CIMx module and
  * before AGESA module get call.
  */
 #ifndef BIOS_SIZE
-#if CONFIG_COREBOOT_ROMSIZE_KB_1024
-  #define BIOS_SIZE BIOS_SIZE_1M
-#elif CONFIG_COREBOOT_ROMSIZE_KB_2048 == 1
-  #define BIOS_SIZE BIOS_SIZE_2M
-#elif CONFIG_COREBOOT_ROMSIZE_KB_4096 == 1
-  #define BIOS_SIZE BIOS_SIZE_4M
-#elif CONFIG_COREBOOT_ROMSIZE_KB_8192 == 1
-  #define BIOS_SIZE BIOS_SIZE_8M
-#endif
-#endif
+#define BIOS_SIZE ((CONFIG_COREBOOT_ROMSIZE_KB >> 10) - 1)
+#endif /* BIOS_SIZE */
 
 /**
  * @def SPREAD_SPECTRUM
diff --git a/src/mainboard/amd/torpedo/platform_cfg.h b/src/mainboard/amd/torpedo/platform_cfg.h
index 8ecb09c11d..bc69938ff9 100644
--- a/src/mainboard/amd/torpedo/platform_cfg.h
+++ b/src/mainboard/amd/torpedo/platform_cfg.h
@@ -25,29 +25,15 @@
 
 
 /**
- *   @section BIOSSize BIOSSize
- *    @li <b>0</b> - 1M
- *    @li <b>1</b> - 2M
- *    @li <b>3</b> - 4M
- *    @li <b>7</b> - 8M
- *    In Hudson-2, default ROM size is 1M Bytes, if your platform
- *  ROM bigger then 1M you have to set the ROM size outside CIMx
- *  module and before AGESA module get call.
- */
-#define BIOS_SIZE_1M			0
-#define BIOS_SIZE_2M			1
-#define BIOS_SIZE_4M			3
-#define BIOS_SIZE_8M			7
-
-#if CONFIG_COREBOOT_ROMSIZE_KB_1024
-  #define BIOS_SIZE BIOS_SIZE_1M
-#elif CONFIG_COREBOOT_ROMSIZE_KB_2048 == 1
-  #define BIOS_SIZE BIOS_SIZE_2M
-#elif CONFIG_COREBOOT_ROMSIZE_KB_4096 == 1
-  #define BIOS_SIZE BIOS_SIZE_4M
-#elif CONFIG_COREBOOT_ROMSIZE_KB_8192 == 1
-  #define BIOS_SIZE BIOS_SIZE_8M
-#endif
+ * @def BIOS_SIZE -> BIOS_SIZE_{1,2,4,8,16}M
+ *
+ * In Hudson-2, default ROM size is 1M Bytes, if your platform ROM
+ * bigger than 1M you have to set the ROM size outside CIMx module and
+ * before AGESA module get call.
+ */
+#ifndef BIOS_SIZE
+#define BIOS_SIZE ((CONFIG_COREBOOT_ROMSIZE_KB >> 10) - 1)
+#endif /* BIOS_SIZE */
 
 /**
  *   @section SBCIMx_LEGACY_FREE SBCIMx_LEGACY_FREE
diff --git a/src/mainboard/amd/union_station/platform_cfg.h b/src/mainboard/amd/union_station/platform_cfg.h
index a8888d20d8..151f587e51 100644
--- a/src/mainboard/amd/union_station/platform_cfg.h
+++ b/src/mainboard/amd/union_station/platform_cfg.h
@@ -22,31 +22,15 @@
 #define _PLATFORM_CFG_H_
 
 /**
- * @def BIOS_SIZE_1M
- * @def BIOS_SIZE_2M
- * @def BIOS_SIZE_4M
- * @def BIOS_SIZE_8M
- */
-#define BIOS_SIZE_1M			0
-#define BIOS_SIZE_2M			1
-#define BIOS_SIZE_4M			3
-#define BIOS_SIZE_8M			7
-
-/* In SB800, default ROM size is 1M Bytes, if your platform ROM
+ * @def BIOS_SIZE -> BIOS_SIZE_{1,2,4,8,16}M
+ *
+ * In SB800, default ROM size is 1M Bytes, if your platform ROM
  * bigger than 1M you have to set the ROM size outside CIMx module and
  * before AGESA module get call.
  */
 #ifndef BIOS_SIZE
-#if CONFIG_COREBOOT_ROMSIZE_KB_1024
-  #define BIOS_SIZE BIOS_SIZE_1M
-#elif CONFIG_COREBOOT_ROMSIZE_KB_2048 == 1
-  #define BIOS_SIZE BIOS_SIZE_2M
-#elif CONFIG_COREBOOT_ROMSIZE_KB_4096 == 1
-  #define BIOS_SIZE BIOS_SIZE_4M
-#elif CONFIG_COREBOOT_ROMSIZE_KB_8192 == 1
-  #define BIOS_SIZE BIOS_SIZE_8M
-#endif
-#endif
+#define BIOS_SIZE ((CONFIG_COREBOOT_ROMSIZE_KB >> 10) - 1)
+#endif /* BIOS_SIZE */
 
 /**
  * @def SPREAD_SPECTRUM