Intel FSP: Move to DYNAMIC_CBMEM

Flag the boards with BROKEN_CAR_MIGRATE, as testing for EARLY_CBMEM_INIT
is not enough to disable CBMEM console for romstage on these platforms.

To have CBMEM early in ramstage, define get_top_of_ram() on sandy/ivy.

Change-Id: Ieefc12099a0e043eb1a7e14bdc7c6e3d209b3d8f
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/7468
Tested-by: build bot (Jenkins)
Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
Reviewed-by: Martin Roth <gaumless@gmail.com>

src/cpu/intel/fsp_model_206ax/Kconfig

@@ -40,6 +40,8 @@ config CPU_SPECIFIC_OPTIONS
 	select PARALLEL_CPU_INIT
 	select TSC_SYNC_MFENCE
 	select LAPIC_MONOTONIC_TIMER
+	select BROKEN_CAR_MIGRATE
+	select DYNAMIC_CBMEM
 
 config BOOTBLOCK_CPU_INIT
 	string

src/cpu/intel/fsp_model_406dx/Kconfig

@@ -36,6 +36,7 @@ config CPU_SPECIFIC_OPTIONS
 	select TSC_SYNC_MFENCE
 	select LAPIC_MONOTONIC_TIMER
 	select BROKEN_CAR_MIGRATE
+	select DYNAMIC_CBMEM
 
 choice
 	prompt "Rangeley CPU Stepping"

src/mainboard/intel/cougar_canyon2/Kconfig

@@ -11,8 +11,6 @@ config BOARD_SPECIFIC_OPTIONS # dummy
 	select MMCONF_SUPPORT
 	select SUPERIO_SMSC_SIO1007
 	select ENABLE_VMX
-	select EARLY_CBMEM_INIT
-	select BROKEN_CAR_MIGRATE
 	select INTEL_INT15
 	select VGA
 

src/northbridge/intel/fsp_sandybridge/northbridge.c

@@ -243,9 +243,16 @@ static void pci_domain_set_resources(device_t dev)
 	add_fixed_resources(dev, 6);
 
 	assign_resources(dev->link_list);
+}
 
-	/* Leave some space for the HOB data above CBMem */
-	set_top_of_ram((tomk - 2048) * 1024);
+unsigned long get_top_of_ram(void)
+{
+	struct device *dev = dev_find_slot(0, PCI_DEVFN(0, 0));
+
+	/* Base of TSEG is top of usable DRAM */
+	u32 tom = pci_read_config32(dev, TSEG) & ~(1UL << 0);
+	tom -= 0x200000;	/* 2MB for FSP HOB */
+	return (unsigned long) tom;
 }
 
 	/* TODO We could determine how many PCIe busses we need in

src/soc/intel/broadwell/memmap.c

@@ -23,7 +23,7 @@
 #include <broadwell/pci_devs.h>
 #include <broadwell/systemagent.h>
 
-static unsigned long get_top_of_ram(void)
+unsigned long get_top_of_ram(void)
 {
 	/*
 	 * Base of DPR is top of usable DRAM below 4GiB. The register has
@@ -39,8 +39,3 @@ static unsigned long get_top_of_ram(void)
 
 	return (unsigned long)tom;
 }
-
-void *cbmem_top(void)
-{
-	return (void *)get_top_of_ram();
-}

src/soc/intel/fsp_baytrail/Kconfig

@@ -31,6 +31,7 @@ config CPU_SPECIFIC_OPTIONS
 	select ARCH_ROMSTAGE_X86_32
 	select ARCH_RAMSTAGE_X86_32
 	select DYNAMIC_CBMEM
+	select BROKEN_CAR_MIGRATE
 	select HAVE_SMI_HANDLER
 	select HAVE_HARD_RESET
 	select MMCONF_SUPPORT