mediatek: mt8183: Support coreboot configuration

When built for coreboot, we want to enable coreboot library to have
better integration. For example, serial console should be initialized by
coreboot_serial instead of hard-coded values.

Most coreboot configuration will enable memory console, which needs
larger XLAT_TABLES so MAX_XLAT_TABLES is increased; and to support that,
TZRAM_SIZE also need to be enlarged.

Change-Id: I08cf22df2fa26e48284e323d22ad8ce73a6ea803
Signed-off-by: Hung-Te Lin <hungte@chromium.org>

plat/mediatek/mt8183/bl31_plat_setup.c

@@ -14,6 +14,7 @@
 #include <drivers/generic_delay_timer.h>
 #include <mcucfg.h>
 #include <mt_gic_v3.h>
+#include <lib/coreboot.h>
 #include <lib/mmio.h>
 #include <mtk_plat_common.h>
 #include <mtspmc.h>
@@ -77,7 +78,15 @@ void bl31_early_platform_setup2(u_register_t arg0, u_register_t arg1,
 
 	params_early_setup(arg1);
 
+#if COREBOOT
+	if (coreboot_serial.type)
+		console_16550_register(coreboot_serial.baseaddr,
+				       coreboot_serial.input_hertz,
+				       coreboot_serial.baud,
+				       &console);
+#else
 	console_16550_register(UART0_BASE, UART_CLOCK, UART_BAUDRATE, &console);
+#endif
 
 	NOTICE("MT8183 bl31_setup\n");
 

plat/mediatek/mt8183/include/platform_def.h

@@ -273,7 +273,7 @@ INTR_PROP_DESC(MT_IRQ_SEC_SGI_7, GIC_HIGHEST_SEC_PRIORITY, grp, \
  ******************************************************************************/
 
 #define TZRAM_BASE          0x54600000
-#define TZRAM_SIZE          0x00020000
+#define TZRAM_SIZE          0x00030000
 
 /*******************************************************************************
  * BL31 specific defines.
@@ -291,7 +291,7 @@ INTR_PROP_DESC(MT_IRQ_SEC_SGI_7, GIC_HIGHEST_SEC_PRIORITY, grp, \
  ******************************************************************************/
 #define PLAT_PHY_ADDR_SPACE_SIZE    (1ULL << 32)
 #define PLAT_VIRT_ADDR_SPACE_SIZE   (1ULL << 32)
-#define MAX_XLAT_TABLES             4
+#define MAX_XLAT_TABLES             16
 #define MAX_MMAP_REGIONS            16
 
 /*******************************************************************************

plat/mediatek/mt8183/platform.mk

@@ -70,3 +70,5 @@ MULTI_CONSOLE_API := 1
 MACH_MT8183 := 1
 $(eval $(call add_define,MACH_MT8183))
 
+include lib/coreboot/coreboot.mk
+