AGESA: Fix UMA calculations
Vendorcode decides already in AMD_INIT_POST the exact location
of UMA memory. To meet alignment requirements, it will extend
uma_memory_size. We cannot calculate base from size and TOP_MEM1,
but need to calculate size from base and TOP_MEM1 instead.
Also allows selection of UmaMode==UMA_SPECIFIED to manually set
amount of memory reserved for framebuffer.
Change-Id: I2514c70a331c7fbf0056f22bf64f19c9374754c0
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/19328
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Marshall Dawson <marshalldawson3rd@gmail.com>
diff --git a/src/northbridge/amd/agesa/agesawrapper.c b/src/northbridge/amd/agesa/agesawrapper.c
index efacaff..0796256 100644
--- a/src/northbridge/amd/agesa/agesawrapper.c
+++ b/src/northbridge/amd/agesa/agesawrapper.c
@@ -13,6 +13,7 @@
* GNU General Public License for more details.
*/
+#include <cbmem.h>
#include <stdint.h>
#include <string.h>
@@ -110,6 +111,8 @@
status = AmdInitPost(PostParams);
AGESA_EVENTLOG(status, &PostParams->StdHeader);
+ backup_top_of_ram(PostParams->MemConfig.Sub4GCacheTop);
+
AmdReleaseStruct(&AmdParamStruct);
return status;
diff --git a/src/northbridge/amd/agesa/family12/northbridge.c b/src/northbridge/amd/agesa/family12/northbridge.c
index 668e1bb..c931bf0 100644
--- a/src/northbridge/amd/agesa/family12/northbridge.c
+++ b/src/northbridge/amd/agesa/family12/northbridge.c
@@ -422,34 +422,6 @@
printk(BIOS_DEBUG, "Fam12h - northbridge.c - %s - End.\n",__func__);
}
-static void setup_uma_memory(void)
-{
-#if CONFIG_GFXUMA
- uint32_t topmem = (uint32_t) bsp_topmem();
- uint32_t sys_mem;
-
- /* refer to UMA Size Consideration in Family12h BKDG. */
- /* Please reference MemNGetUmaSizeLN () */
- /*
- * Total system memory UMASize
- * >= 2G 512M
- * >=1G 256M
- * <1G 64M
- */
- sys_mem = topmem + 0x1000000; // Ignore 16MB allocated for C6 when finding UMA size
- if ((bsp_topmem2()>>32) || (sys_mem >= 0x80000000)) {
- uma_memory_size = 0x20000000; /* >= 2G memory, 512M recommended UMA */
- } else if (sys_mem >= 0x40000000) {
- uma_memory_size = 0x10000000; /* >= 1G memory, 256M recommended UMA */
- } else {
- uma_memory_size = 0x4000000; /* <1G memory, 64M recommended UMA */
- }
- uma_memory_base = topmem - uma_memory_size; /* TOP_MEM1 */
- printk(BIOS_INFO, "%s: uma size 0x%08llx, memory start 0x%08llx\n",
- __func__, uma_memory_size, uma_memory_base);
-#endif
-}
-
/* Domain/Root Complex related code */
static void domain_read_resources(device_t dev)
@@ -514,7 +486,6 @@
unsigned long mmio_basek;
u32 pci_tolm;
- u64 ramtop = 0;
int idx;
struct bus *link;
#if CONFIG_HW_MEM_HOLE_SIZEK != 0
@@ -595,8 +566,6 @@
ram_resource(dev, idx, basek, pre_sizek);
idx += 0x10;
sizek -= pre_sizek;
- if (!ramtop)
- ramtop = mmio_basek * 1024;
}
basek = mmio_basek;
}
@@ -612,17 +581,10 @@
idx += 0x10;
printk(BIOS_DEBUG, "%d: mmio_basek=%08lx, basek=%08llx, limitk=%08llx\n",
0, mmio_basek, basek, limitk);
- if (!ramtop)
- ramtop = limitk * 1024;
}
printk(BIOS_DEBUG, " adsr - mmio_basek = %lx.\n", mmio_basek);
-#if CONFIG_GFXUMA
- set_top_of_ram(uma_memory_base);
- uma_resource(dev, 7, uma_memory_base >> 10, uma_memory_size >> 10);
-#else
- set_top_of_ram(ramtop);
-#endif
+ add_uma_resource_below_tolm(dev, 7);
for (link = dev->link_list; link; link = link->next) {
if (link->children)
@@ -811,11 +773,8 @@
printk(BIOS_DEBUG, "\nFam12h - northbridge.c - %s - Start.\n",__func__);
static int done = 0;
- /* Do not delay UMA setup, as a device on the PCI bus may evaluate
- the global uma_memory variables already in its enable function. */
if (!done) {
setup_bsp_ramtop();
- setup_uma_memory();
done = 1;
}
diff --git a/src/northbridge/amd/agesa/family14/northbridge.c b/src/northbridge/amd/agesa/family14/northbridge.c
index b35599e..e570096 100644
--- a/src/northbridge/amd/agesa/family14/northbridge.c
+++ b/src/northbridge/amd/agesa/family14/northbridge.c
@@ -458,31 +458,6 @@
pci_domain_read_resources(dev);
}
-static void setup_uma_memory(void)
-{
-#if CONFIG_GFXUMA
- uint32_t topmem = (uint32_t) bsp_topmem();
- uint32_t sys_mem;
-
- /* refer to UMA Size Consideration in Family14h BKDG. */
- sys_mem = topmem + 0x1000000; // Ignore 16MB allocated for C6 when finding UMA size, refer MemNGetUmaSizeON()
- if ((bsp_topmem2()>>32) || (sys_mem >= 0x80000000)) {
- uma_memory_size = 0x18000000; /* >= 2G memory, 384M recommended UMA */
- }
- else {
- if (sys_mem >= 0x40000000) {
- uma_memory_size = 0x10000000; /* >= 1G memory, 256M recommended UMA */
- } else {
- uma_memory_size = 0x4000000; /* <1G memory, 64M recommended UMA */
- }
- }
-
- uma_memory_base = topmem - uma_memory_size; /* TOP_MEM1 */
- printk(BIOS_INFO, "%s: uma size 0x%08llx, memory start 0x%08llx\n",
- __func__, uma_memory_size, uma_memory_base);
-#endif
-}
-
static void domain_set_resources(device_t dev)
{
printk(BIOS_DEBUG, "\nFam14h - %s\n", __func__);
@@ -490,7 +465,6 @@
unsigned long mmio_basek;
u32 pci_tolm;
- u64 ramtop = 0;
int idx;
struct bus *link;
#if CONFIG_HW_MEM_HOLE_SIZEK != 0
@@ -576,8 +550,6 @@
pre_sizek);
idx += 0x10;
sizek -= pre_sizek;
- if (!ramtop)
- ramtop = mmio_basek * 1024;
}
basek = mmio_basek;
}
@@ -594,17 +566,10 @@
printk(BIOS_DEBUG,
"%d: mmio_basek=%08lx, basek=%08llx, limitk=%08llx\n", 0,
mmio_basek, basek, limitk);
- if (!ramtop)
- ramtop = limitk * 1024;
}
printk(BIOS_DEBUG, " adsr - mmio_basek = %lx.\n", mmio_basek);
-#if CONFIG_GFXUMA
- set_top_of_ram(uma_memory_base);
- uma_resource(dev, 7, uma_memory_base >> 10, uma_memory_size >> 10);
-#else
- set_top_of_ram(ramtop);
-#endif
+ add_uma_resource_below_tolm(dev, 7);
for (link = dev->link_list; link; link = link->next) {
if (link->children) {
@@ -836,11 +801,8 @@
{
static int done = 0;
- /* Do not delay UMA setup, as a device on the PCI bus may evaluate
- the global uma_memory variables already in its enable function. */
if (!done) {
setup_bsp_ramtop();
- setup_uma_memory();
done = 1;
}
diff --git a/src/northbridge/amd/agesa/family15/northbridge.c b/src/northbridge/amd/agesa/family15/northbridge.c
index 77db054..5cb0f91 100644
--- a/src/northbridge/amd/agesa/family15/northbridge.c
+++ b/src/northbridge/amd/agesa/family15/northbridge.c
@@ -699,43 +699,10 @@
}
#endif
-#define ONE_MB_SHIFT 20
-
-static void setup_uma_memory(void)
-{
-#if CONFIG_GFXUMA
- uint32_t topmem = (uint32_t) bsp_topmem();
- uint32_t sys_mem;
-
- /* refer to UMA Size Consideration in Family15h BKDG. */
- /* Please reference MemNGetUmaSizeOR () */
- /*
- * Total system memory UMASize
- * >= 2G 512M
- * >=1G 256M
- * <1G 64M
- */
- sys_mem = topmem + (16 << ONE_MB_SHIFT); // Ignore 16MB allocated for C6 when finding UMA size
- if ((bsp_topmem2()>>32) || (sys_mem >= 2048 << ONE_MB_SHIFT)) {
- uma_memory_size = 512 << ONE_MB_SHIFT;
- } else if (sys_mem >= 1024 << ONE_MB_SHIFT) {
- uma_memory_size = 256 << ONE_MB_SHIFT;
- } else {
- uma_memory_size = 64 << ONE_MB_SHIFT;
- }
- uma_memory_base = topmem - uma_memory_size; /* TOP_MEM1 */
-
- printk(BIOS_INFO, "%s: uma size 0x%08llx, memory start 0x%08llx\n",
- __func__, uma_memory_size, uma_memory_base);
-#endif
-}
-
-
static void domain_set_resources(device_t dev)
{
unsigned long mmio_basek;
u32 pci_tolm;
- u64 ramtop = 0;
int i, idx;
struct bus *link;
#if CONFIG_HW_MEM_HOLE_SIZEK != 0
@@ -806,8 +773,6 @@
ram_resource(dev, (idx | i), basek, pre_sizek);
idx += 0x10;
sizek -= pre_sizek;
- if (!ramtop)
- ramtop = mmio_basek * 1024;
}
basek = mmio_basek;
}
@@ -824,16 +789,9 @@
idx += 0x10;
printk(BIOS_DEBUG, "node %d: mmio_basek=%08lx, basek=%08llx, limitk=%08llx\n",
i, mmio_basek, basek, limitk);
- if (!ramtop)
- ramtop = limitk * 1024;
}
-#if CONFIG_GFXUMA
- set_top_of_ram(uma_memory_base);
- uma_resource(dev, 7, uma_memory_base >> 10, uma_memory_size >> 10);
-#else
- set_top_of_ram(ramtop);
-#endif
+ add_uma_resource_below_tolm(dev, 7);
for (link = dev->link_list; link; link = link->next) {
if (link->children) {
@@ -1095,11 +1053,8 @@
{
static int done = 0;
- /* Do not delay UMA setup, as a device on the PCI bus may evaluate
- the global uma_memory variables already in its enable function. */
if (!done) {
setup_bsp_ramtop();
- setup_uma_memory();
done = 1;
}
diff --git a/src/northbridge/amd/agesa/family15rl/northbridge.c b/src/northbridge/amd/agesa/family15rl/northbridge.c
index c87ef48..aa24a6a 100644
--- a/src/northbridge/amd/agesa/family15rl/northbridge.c
+++ b/src/northbridge/amd/agesa/family15rl/northbridge.c
@@ -695,43 +695,10 @@
}
#endif
-#define ONE_MB_SHIFT 20
-
-static void setup_uma_memory(void)
-{
-#if CONFIG_GFXUMA
- uint32_t topmem = (uint32_t) bsp_topmem();
- uint32_t sys_mem;
-
- /* refer to UMA Size Consideration in Family15h BKDG. */
- /* Please reference MemNGetUmaSizeOR () */
- /*
- * Total system memory UMASize
- * >= 2G 512M
- * >=1G 256M
- * <1G 64M
- */
- sys_mem = topmem + (16 << ONE_MB_SHIFT); // Ignore 16MB allocated for C6 when finding UMA size
- if ((bsp_topmem2()>>32) || (sys_mem >= 2048 << ONE_MB_SHIFT)) {
- uma_memory_size = 512 << ONE_MB_SHIFT;
- } else if (sys_mem >= 1024 << ONE_MB_SHIFT) {
- uma_memory_size = 256 << ONE_MB_SHIFT;
- } else {
- uma_memory_size = 64 << ONE_MB_SHIFT;
- }
- uma_memory_base = topmem - uma_memory_size; /* TOP_MEM1 */
-
- printk(BIOS_INFO, "%s: uma size 0x%08llx, memory start 0x%08llx\n",
- __func__, uma_memory_size, uma_memory_base);
-#endif
-}
-
-
static void domain_set_resources(struct device *dev)
{
unsigned long mmio_basek;
u32 pci_tolm;
- u64 ramtop = 0;
int i, idx;
struct bus *link;
#if CONFIG_HW_MEM_HOLE_SIZEK != 0
@@ -804,8 +771,6 @@
ram_resource(dev, (idx | i), basek, pre_sizek);
idx += 0x10;
sizek -= pre_sizek;
- if (!ramtop)
- ramtop = mmio_basek * 1024;
}
basek = mmio_basek;
}
@@ -823,16 +788,9 @@
idx += 0x10;
printk(BIOS_DEBUG, "node %d: mmio_basek=%08lx, basek=%08llx, limitk=%08llx\n",
i, mmio_basek, basek, limitk);
- if (!ramtop)
- ramtop = limitk * 1024;
}
-#if CONFIG_GFXUMA
- set_top_of_ram(uma_memory_base);
- uma_resource(dev, 7, uma_memory_base >> 10, uma_memory_size >> 10);
-#else
- set_top_of_ram(ramtop);
-#endif
+ add_uma_resource_below_tolm(dev, 7);
for (link = dev->link_list; link; link = link->next) {
if (link->children) {
@@ -1085,11 +1043,8 @@
{
static int done = 0;
- /* Do not delay UMA setup, as a device on the PCI bus may evaluate
- the global uma_memory variables already in its enable function. */
if (!done) {
setup_bsp_ramtop();
- setup_uma_memory();
done = 1;
}
diff --git a/src/northbridge/amd/agesa/family15tn/northbridge.c b/src/northbridge/amd/agesa/family15tn/northbridge.c
index c8909fb..95787fc 100644
--- a/src/northbridge/amd/agesa/family15tn/northbridge.c
+++ b/src/northbridge/amd/agesa/family15tn/northbridge.c
@@ -694,43 +694,10 @@
}
#endif
-#define ONE_MB_SHIFT 20
-
-static void setup_uma_memory(void)
-{
-#if CONFIG_GFXUMA
- uint32_t topmem = (uint32_t) bsp_topmem();
- uint32_t sys_mem;
-
- /* refer to UMA Size Consideration in Family15h BKDG. */
- /* Please reference MemNGetUmaSizeOR () */
- /*
- * Total system memory UMASize
- * >= 2G 512M
- * >=1G 256M
- * <1G 64M
- */
- sys_mem = topmem + (16 << ONE_MB_SHIFT); // Ignore 16MB allocated for C6 when finding UMA size
- if ((bsp_topmem2()>>32) || (sys_mem >= 2048 << ONE_MB_SHIFT)) {
- uma_memory_size = 512 << ONE_MB_SHIFT;
- } else if (sys_mem >= 1024 << ONE_MB_SHIFT) {
- uma_memory_size = 256 << ONE_MB_SHIFT;
- } else {
- uma_memory_size = 64 << ONE_MB_SHIFT;
- }
- uma_memory_base = topmem - uma_memory_size; /* TOP_MEM1 */
-
- printk(BIOS_INFO, "%s: uma size 0x%08llx, memory start 0x%08llx\n",
- __func__, uma_memory_size, uma_memory_base);
-#endif
-}
-
-
static void domain_set_resources(device_t dev)
{
unsigned long mmio_basek;
u32 pci_tolm;
- u64 ramtop = 0;
int i, idx;
struct bus *link;
#if CONFIG_HW_MEM_HOLE_SIZEK != 0
@@ -801,8 +768,6 @@
ram_resource(dev, (idx | i), basek, pre_sizek);
idx += 0x10;
sizek -= pre_sizek;
- if (!ramtop)
- ramtop = mmio_basek * 1024;
}
basek = mmio_basek;
}
@@ -820,16 +785,9 @@
idx += 0x10;
printk(BIOS_DEBUG, "node %d: mmio_basek=%08lx, basek=%08llx, limitk=%08llx\n",
i, mmio_basek, basek, limitk);
- if (!ramtop)
- ramtop = limitk * 1024;
}
-#if CONFIG_GFXUMA
- set_top_of_ram(uma_memory_base);
- uma_resource(dev, 7, uma_memory_base >> 10, uma_memory_size >> 10);
-#else
- set_top_of_ram(ramtop);
-#endif
+ add_uma_resource_below_tolm(dev, 7);
for (link = dev->link_list; link; link = link->next) {
if (link->children) {
@@ -1082,11 +1040,8 @@
{
static int done = 0;
- /* Do not delay UMA setup, as a device on the PCI bus may evaluate
- the global uma_memory variables already in its enable function. */
if (!done) {
setup_bsp_ramtop();
- setup_uma_memory();
done = 1;
}
diff --git a/src/northbridge/amd/agesa/family16kb/northbridge.c b/src/northbridge/amd/agesa/family16kb/northbridge.c
index 5b475fe..f91448a 100644
--- a/src/northbridge/amd/agesa/family16kb/northbridge.c
+++ b/src/northbridge/amd/agesa/family16kb/northbridge.c
@@ -709,45 +709,10 @@
}
#endif
-#define ONE_MB_SHIFT 20
-
-static void setup_uma_memory(void)
-{
-#if CONFIG_GFXUMA
- uint32_t topmem = (uint32_t) bsp_topmem();
- uint32_t sys_mem;
-
- /* refer to UMA Size Consideration in Family16h BKDG. */
- /* Please reference MemNGetUmaSizeOR () */
- /*
- * Total system memory UMASize
- * >= 2G 512M
- * >=1G 256M
- * <1G 64M
- */
- sys_mem = topmem + (16 << ONE_MB_SHIFT); // Ignore 16MB allocated for C6 when finding UMA size
- if ((bsp_topmem2()>>32) || (sys_mem >= 2048 << ONE_MB_SHIFT)) {
- uma_memory_size = 512 << ONE_MB_SHIFT;
- } else if (sys_mem >= 1024 << ONE_MB_SHIFT) {
- uma_memory_size = 256 << ONE_MB_SHIFT;
- } else {
- uma_memory_size = 64 << ONE_MB_SHIFT;
- }
- uma_memory_base = topmem - uma_memory_size; /* TOP_MEM1 */
-
- printk(BIOS_INFO, "%s: uma size 0x%08llx, memory start 0x%08llx\n",
- __func__, uma_memory_size, uma_memory_base);
-
- /* TODO: TOP_MEM2 */
-#endif
-}
-
-
static void domain_set_resources(device_t dev)
{
unsigned long mmio_basek;
u32 pci_tolm;
- u64 ramtop = 0;
int i, idx;
struct bus *link;
#if CONFIG_HW_MEM_HOLE_SIZEK != 0
@@ -806,7 +771,6 @@
idx += 0x10;
basek = (8*64)+(16*16);
sizek = limitk - ((8*64)+(16*16));
-
}
//printk(BIOS_DEBUG, "node %d : mmio_basek=%08lx, basek=%08llx, limitk=%08llx\n", i, mmio_basek, basek, limitk);
@@ -820,8 +784,6 @@
ram_resource(dev, (idx | i), basek, pre_sizek);
idx += 0x10;
sizek -= pre_sizek;
- if (!ramtop)
- ramtop = mmio_basek * 1024;
}
basek = mmio_basek;
}
@@ -839,16 +801,9 @@
idx += 0x10;
printk(BIOS_DEBUG, "node %d: mmio_basek=%08lx, basek=%08llx, limitk=%08llx\n",
i, mmio_basek, basek, limitk);
- if (!ramtop)
- ramtop = limitk * 1024;
}
-#if CONFIG_GFXUMA
- set_top_of_ram(uma_memory_base);
- uma_resource(dev, 7, uma_memory_base >> 10, uma_memory_size >> 10);
-#else
- set_top_of_ram(ramtop);
-#endif
+ add_uma_resource_below_tolm(dev, 7);
for (link = dev->link_list; link; link = link->next) {
if (link->children) {
@@ -1101,11 +1056,8 @@
{
static int done = 0;
- /* Do not delay UMA setup, as a device on the PCI bus may evaluate
- the global uma_memory variables already in its enable function. */
if (!done) {
setup_bsp_ramtop();
- setup_uma_memory();
done = 1;
}
diff --git a/src/southbridge/amd/agesa/hudson/ramtop.c b/src/southbridge/amd/agesa/hudson/ramtop.c
index 567cd12..798a3bb 100644
--- a/src/southbridge/amd/agesa/hudson/ramtop.c
+++ b/src/southbridge/amd/agesa/hudson/ramtop.c
@@ -26,27 +26,21 @@
return (int)tmp;
}
-#if IS_ENABLED(CONFIG_LATE_CBMEM_INIT)
-
-#ifndef __PRE_RAM__
void backup_top_of_ram(uint64_t ramtop)
{
- u32 dword = (u32) ramtop;
+ u32 dword = ramtop;
int nvram_pos = 0xf8, i; /* temp */
for (i = 0; i < 4; i++) {
outb(nvram_pos, BIOSRAM_INDEX);
- outb((dword >>(8 * i)) & 0xff , BIOSRAM_DATA);
+ outb((dword >> (8 * i)) & 0xff, BIOSRAM_DATA);
nvram_pos++;
}
}
-#endif
unsigned long get_top_of_ram(void)
{
uint32_t xdata = 0;
int xnvram_pos = 0xf8, xi;
- if (acpi_get_sleep_type() != 3)
- return 0;
for (xi = 0; xi < 4; xi++) {
outb(xnvram_pos, BIOSRAM_INDEX);
xdata &= ~(0xff << (xi * 8));
@@ -55,5 +49,3 @@
}
return (unsigned long) xdata;
}
-
-#endif
diff --git a/src/southbridge/amd/cimx/sb700/Makefile.inc b/src/southbridge/amd/cimx/sb700/Makefile.inc
index ab668e2..0b9ee9c 100644
--- a/src/southbridge/amd/cimx/sb700/Makefile.inc
+++ b/src/southbridge/amd/cimx/sb700/Makefile.inc
@@ -19,9 +19,11 @@
romstage-y += early.c
romstage-y += smbus.c smbus_spd.c
romstage-y += reset.c
+romstage-y += ramtop.c
ramstage-y += late.c
ramstage-y += reset.c
+ramstage-y += ramtop.c
ramstage-y += smbus.c
ramstage-y += lpc.c
diff --git a/src/southbridge/amd/cimx/sb700/lpc.c b/src/southbridge/amd/cimx/sb700/lpc.c
index 1639f08..5a8faa8 100644
--- a/src/southbridge/amd/cimx/sb700/lpc.c
+++ b/src/southbridge/amd/cimx/sb700/lpc.c
@@ -20,23 +20,6 @@
#include <console/console.h> /* printk */
#include <cbmem.h>
-#if IS_ENABLED(CONFIG_LATE_CBMEM_INIT)
-
-#define BIOSRAM_INDEX 0xcd4
-#define BIOSRAM_DATA 0xcd5
-
-void backup_top_of_ram(uint64_t ramtop)
-{
- u32 dword = (u32) ramtop;
- int nvram_pos = 0xfc, i;
- for (i = 0; i < 4; i++) {
- outb(nvram_pos, BIOSRAM_INDEX);
- outb((dword >>(8 * i)) & 0xff , BIOSRAM_DATA);
- nvram_pos++;
- }
-}
-#endif
-
void lpc_read_resources(device_t dev)
{
struct resource *res;
diff --git a/src/southbridge/amd/cimx/sb700/ramtop.c b/src/southbridge/amd/cimx/sb700/ramtop.c
new file mode 100644
index 0000000..f59a9a3
--- /dev/null
+++ b/src/southbridge/amd/cimx/sb700/ramtop.c
@@ -0,0 +1,43 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2010 Advanced Micro Devices, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#include <stdint.h>
+#include <arch/io.h>
+#include <cbmem.h>
+#include <southbridge/amd/cimx/cimx_util.h>
+
+void backup_top_of_ram(uint64_t ramtop)
+{
+ u32 dword = ramtop;
+ int nvram_pos = 0xfc, i;
+ for (i = 0; i < 4; i++) {
+ outb(nvram_pos, BIOSRAM_INDEX);
+ outb((dword >> (8 * i)) & 0xff, BIOSRAM_DATA);
+ nvram_pos++;
+ }
+}
+
+unsigned long get_top_of_ram(void)
+{
+ u32 xdata = 0;
+ int xnvram_pos = 0xfc, xi;
+ for (xi = 0; xi < 4; xi++) {
+ outb(xnvram_pos, BIOSRAM_INDEX);
+ xdata &= ~(0xff << (xi * 8));
+ xdata |= inb(BIOSRAM_DATA) << (xi *8);
+ xnvram_pos++;
+ }
+ return (unsigned long) xdata;
+}
diff --git a/src/southbridge/amd/cimx/sb800/Makefile.inc b/src/southbridge/amd/cimx/sb800/Makefile.inc
index 7c31278..0511fb3 100644
--- a/src/southbridge/amd/cimx/sb800/Makefile.inc
+++ b/src/southbridge/amd/cimx/sb800/Makefile.inc
@@ -30,8 +30,8 @@
ramstage-$(CONFIG_SPI_FLASH) += spi.c
ramstage-$(CONFIG_HAVE_ACPI_TABLES) += fadt.c
-romstage-$(CONFIG_HAVE_ACPI_RESUME) += ramtop.c
-ramstage-$(CONFIG_HAVE_ACPI_RESUME) += ramtop.c
+romstage-y += ramtop.c
+ramstage-y += ramtop.c
romstage-$(CONFIG_USBDEBUG_IN_ROMSTAGE) += ../../sb800/enable_usbdebug.c
ramstage-$(CONFIG_USBDEBUG) += ../../sb800/enable_usbdebug.c
diff --git a/src/southbridge/amd/cimx/sb800/ramtop.c b/src/southbridge/amd/cimx/sb800/ramtop.c
index 44a4960..4d5b9a8 100644
--- a/src/southbridge/amd/cimx/sb800/ramtop.c
+++ b/src/southbridge/amd/cimx/sb800/ramtop.c
@@ -26,27 +26,21 @@
return (int)tmp;
}
-#if IS_ENABLED(CONFIG_LATE_CBMEM_INIT)
-
-#ifndef __PRE_RAM__
void backup_top_of_ram(uint64_t ramtop)
{
- u32 dword = (u32) ramtop;
+ u32 dword = ramtop;
int nvram_pos = 0xf8, i; /* temp */
for (i = 0; i < 4; i++) {
outb(nvram_pos, BIOSRAM_INDEX);
- outb((dword >>(8 * i)) & 0xff , BIOSRAM_DATA);
+ outb((dword >> (8 * i)) & 0xff, BIOSRAM_DATA);
nvram_pos++;
}
}
-#endif
unsigned long get_top_of_ram(void)
{
u32 xdata = 0;
int xnvram_pos = 0xf8, xi;
- if (acpi_get_sleep_type() != 3)
- return 0;
for (xi = 0; xi < 4; xi++) {
outb(xnvram_pos, BIOSRAM_INDEX);
xdata &= ~(0xff << (xi * 8));
@@ -55,5 +49,3 @@
}
return (unsigned long) xdata;
}
-
-#endif
diff --git a/src/southbridge/amd/cimx/sb900/Makefile.inc b/src/southbridge/amd/cimx/sb900/Makefile.inc
index 05ebaea..b09180c 100644
--- a/src/southbridge/amd/cimx/sb900/Makefile.inc
+++ b/src/southbridge/amd/cimx/sb900/Makefile.inc
@@ -20,11 +20,13 @@
romstage-y += early.c
romstage-y += smbus.c smbus_spd.c
romstage-y += reset.c
+romstage-y += ramtop.c
ramstage-y += cfg.c
ramstage-y += early.c
ramstage-y += late.c
ramstage-y += reset.c
+ramstage-y += ramtop.c
ramstage-y += smbus.c
ramstage-y += lpc.c
diff --git a/src/southbridge/amd/cimx/sb900/ramtop.c b/src/southbridge/amd/cimx/sb900/ramtop.c
new file mode 100644
index 0000000..34e8364
--- /dev/null
+++ b/src/southbridge/amd/cimx/sb900/ramtop.c
@@ -0,0 +1,43 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2010 Advanced Micro Devices, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#include <stdint.h>
+#include <arch/io.h>
+#include <cbmem.h>
+#include <southbridge/amd/cimx/cimx_util.h>
+
+void backup_top_of_ram(uint64_t ramtop)
+{
+ u32 dword = ramtop;
+ int nvram_pos = 0xf8, i; /* temp */
+ for (i = 0; i < 4; i++) {
+ outb(nvram_pos, BIOSRAM_INDEX);
+ outb((dword >> (8 * i)) & 0xff, BIOSRAM_DATA);
+ nvram_pos++;
+ }
+}
+
+unsigned long get_top_of_ram(void)
+{
+ u32 xdata = 0;
+ int xnvram_pos = 0xf8, xi;
+ for (xi = 0; xi < 4; xi++) {
+ outb(xnvram_pos, BIOSRAM_INDEX);
+ xdata &= ~(0xff << (xi * 8));
+ xdata |= inb(BIOSRAM_DATA) << (xi *8);
+ xnvram_pos++;
+ }
+ return (unsigned long) xdata;
+}