Hi,
attached patch adds high table support to via vt8454c and might be a good
template for other boards and chipsets.
Signed-off-by: Patrick Georgi <[email protected]>
Patrick
Index: src/mainboard/via/vt8454c/Options.lb
===================================================================
--- src/mainboard/via/vt8454c/Options.lb (Revision 4219)
+++ src/mainboard/via/vt8454c/Options.lb (Arbeitskopie)
@@ -25,6 +25,9 @@
uses HAVE_ACPI_TABLES
uses HAVE_OPTION_TABLE
uses USE_OPTION_TABLE
+uses HAVE_LOW_TABLES
+uses HAVE_HIGH_TABLES
+uses HAVE_MAINBOARD_RESOURCES
uses USE_FALLBACK_IMAGE
uses HAVE_FALLBACK_BOOT
@@ -139,7 +142,14 @@
##
default HAVE_OPTION_TABLE=1
+##
+## Build code to fill in tables both in low and high memory
+##
+default HAVE_LOW_TABLES=1
+default HAVE_HIGH_TABLES=1
+default HAVE_MAINBOARD_RESOURCES=1
+
##
## Build code to setup a generic IOAPIC
##
Index: src/mainboard/via/vt8454c/mainboard.c
===================================================================
--- src/mainboard/via/vt8454c/mainboard.c (Revision 4216)
+++ src/mainboard/via/vt8454c/mainboard.c (Arbeitskopie)
@@ -20,8 +20,23 @@
*/
#include <device/device.h>
+#include <boot/tables.h>
+#include <console/console.h>
#include "chip.h"
+/* in arch/i386/boot/tables.c */
+extern uint64_t high_tables_base, high_tables_size;
+
+int add_mainboard_resources(struct lb_memory *mem)
+{
+#if HAVE_HIGH_TABLES == 1
+ printk_debug("Adding high table area\n");
+ lb_add_memory_range(mem, LB_MEM_TABLE,
+ high_tables_base, high_tables_size);
+#endif
+ return 0;
+}
+
struct chip_operations mainboard_ops = {
CHIP_NAME("VIA VT8454c Mainboard")
};
Index: src/northbridge/via/cx700/northbridge.c
===================================================================
--- src/northbridge/via/cx700/northbridge.c (Revision 4216)
+++ src/northbridge/via/cx700/northbridge.c (Arbeitskopie)
@@ -87,6 +87,12 @@
return tolm;
}
+#if HAVE_HIGH_TABLES==1
+/* maximum size of high tables in KB */
+#define HIGH_TABLES_SIZE 64
+extern uint64_t high_tables_base, high_tables_size;
+#endif
+
static void pci_domain_set_resources(device_t dev)
{
device_t mc_dev;
@@ -117,6 +123,12 @@
else
tomk = (((rambits << 6) - (4 << reg) - 1) * 1024);
+#if HAVE_HIGH_TABLES == 1
+ high_tables_base = (tomk - HIGH_TABLES_SIZE) * 1024;
+ high_tables_size = HIGH_TABLES_SIZE* 1024;
+ printk_debug("tom: %lx, high_tables_base: %llx, high_tables_size: %llx\n", tomk*1024, high_tables_base, high_tables_size);
+#endif
+
/* Compute the top of Low memory */
tolmk = pci_tolm >> 10;
if (tolmk >= tomk) {
--
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