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authorStefan Reinauer <reinauer@chromium.org>2012-06-11 15:15:46 -0700
committerRonald G. Minnich <rminnich@gmail.com>2012-07-24 23:17:17 +0200
commit998f3a27be2a16ae0bc1f193a805b680208d63ab (patch)
treeeab8d4c149630e72d4ff47e698883ddcbc92f1fc /src
parent49058c0adf348342ea23711f018997816da4056b (diff)
downloadcoreboot-998f3a27be2a16ae0bc1f193a805b680208d63ab.tar.xz
Cougar/Panther Point: Compile in ME7 and ME8 code at the same time
In the short term there might be devices with Sandy Bridge CPUs on mainboards with Panther Point PCHes. While this configuration option is perfectly valid, coreboot currently ties Sandy Bridge to Cougar Point and Ivy Bridge to Panther Point. One occurence is in the ME handling code. To make coreboot most flexible, compile both ME handlers into coreboot and decide at runtime which one to use. Change-Id: Icffe2930873f67c99c3f73e37e7a967f4f002b88 Signed-off-by: Stefan Reinauer <reinauer@google.com> Reviewed-on: http://review.coreboot.org/1280 Tested-by: build bot (Jenkins) Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
Diffstat (limited to 'src')
-rw-r--r--src/southbridge/intel/bd82x6x/Makefile.inc8
-rw-r--r--src/southbridge/intel/bd82x6x/me.c23
-rw-r--r--src/southbridge/intel/bd82x6x/me.h5
-rw-r--r--src/southbridge/intel/bd82x6x/me_8.x.c8
4 files changed, 29 insertions, 15 deletions
diff --git a/src/southbridge/intel/bd82x6x/Makefile.inc b/src/southbridge/intel/bd82x6x/Makefile.inc
index f086426aa5..11a6b08081 100644
--- a/src/southbridge/intel/bd82x6x/Makefile.inc
+++ b/src/southbridge/intel/bd82x6x/Makefile.inc
@@ -17,9 +17,6 @@
## Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
##
-me-src-$(CONFIG_NORTHBRIDGE_INTEL_SANDYBRIDGE) += me.c
-me-src-$(CONFIG_NORTHBRIDGE_INTEL_IVYBRIDGE) += me_8.x.c
-
driver-y += pch.c
driver-y += azalia.c
driver-y += lpc.c
@@ -27,7 +24,8 @@ driver-y += pci.c
driver-y += pcie.c
driver-y += sata.c
driver-y += usb_ehci.c
-driver-y += $(me-src-y)
+driver-y += me.c
+driver-y += me_8.x.c
driver-y += smbus.c
ramstage-y += me_status.c
@@ -37,7 +35,7 @@ ramstage-y += watchdog.c
ramstage-y += spi.c
ramstage-$(CONFIG_HAVE_SMI_HANDLER) += smi.c
-smm-$(CONFIG_HAVE_SMI_HANDLER) += smihandler.c $(me-src-y) finalize.c
+smm-$(CONFIG_HAVE_SMI_HANDLER) += smihandler.c me.c me_8.x.c finalize.c
romstage-y += early_usb.c early_smbus.c early_me.c me_status.c gpio.c
romstage-$(CONFIG_USBDEBUG) += usb_debug.c
diff --git a/src/southbridge/intel/bd82x6x/me.c b/src/southbridge/intel/bd82x6x/me.c
index 1b7b2623c2..0c40ab4276 100644
--- a/src/southbridge/intel/bd82x6x/me.c
+++ b/src/southbridge/intel/bd82x6x/me.c
@@ -353,8 +353,9 @@ static inline int mei_sendrecv(struct mei_header *mei, struct mkhi_header *mkhi,
return 0;
}
+#ifdef __SMM__
/* Send END OF POST message to the ME */
-int mkhi_end_of_post(void)
+static int mkhi_end_of_post(void)
{
struct mkhi_header mkhi = {
.group_id = MKHI_GROUP_ID_GEN,
@@ -376,6 +377,7 @@ int mkhi_end_of_post(void)
printk(BIOS_INFO, "ME: END OF POST message successful\n");
return 0;
}
+#endif
#if (CONFIG_DEFAULT_CONSOLE_LOGLEVEL >= BIOS_DEBUG) && !defined(__SMM__)
/* Get ME firmware version */
@@ -460,6 +462,7 @@ static int mkhi_get_fwcaps(void)
}
#endif
+#if CONFIG_CHROMEOS && 0 /* DISABLED */
/* Tell ME to issue a global reset */
int mkhi_global_reset(void)
{
@@ -490,10 +493,10 @@ int mkhi_global_reset(void)
printk(BIOS_ERR, "ME: Global Reset failed\n");
return -1;
}
+#endif
#ifdef __SMM__
-
-void intel_me_finalize_smm(void)
+static void intel_me7_finalize_smm(void)
{
struct me_hfs hfs;
u32 reg32;
@@ -528,6 +531,20 @@ void intel_me_finalize_smm(void)
RCBA32_OR(FD2, PCH_DISABLE_MEI1);
}
+void intel_me_finalize_smm(void)
+{
+ u32 did = pci_read_config32(PCH_ME_DEV, PCI_VENDOR_ID);
+ switch (did) {
+ case 0x80861c3a:
+ intel_me7_finalize_smm();
+ break;
+ case 0x80861e3a:
+ intel_me8_finalize_smm();
+ break;
+ default:
+ printk(BIOS_ERR, "No finalize handler for ME %08x.\n", did);
+ }
+}
#else /* !__SMM__ */
/* Determine the path that we should take based on ME status */
diff --git a/src/southbridge/intel/bd82x6x/me.h b/src/southbridge/intel/bd82x6x/me.h
index 53964a2faa..aaeb24d65d 100644
--- a/src/southbridge/intel/bd82x6x/me.h
+++ b/src/southbridge/intel/bd82x6x/me.h
@@ -248,14 +248,11 @@ void intel_early_me_status(void);
int intel_early_me_init(void);
int intel_early_me_uma_size(void);
int intel_early_me_init_done(u8 status);
-#else
-/* ME Kernel Host Interface Messages */
-int mkhi_end_of_post(void);
-int mkhi_global_reset(void);
#endif
#ifdef __SMM__
void intel_me_finalize_smm(void);
+void intel_me8_finalize_smm(void);
#endif
typedef struct {
u32 major_version : 16;
diff --git a/src/southbridge/intel/bd82x6x/me_8.x.c b/src/southbridge/intel/bd82x6x/me_8.x.c
index c7a69fe5c4..32f660efbc 100644
--- a/src/southbridge/intel/bd82x6x/me_8.x.c
+++ b/src/southbridge/intel/bd82x6x/me_8.x.c
@@ -357,7 +357,7 @@ static inline int mei_sendrecv(struct mei_header *mei, struct mkhi_header *mkhi,
}
/* Send END OF POST message to the ME */
-int mkhi_end_of_post(void)
+static int mkhi_end_of_post(void)
{
struct mkhi_header mkhi = {
.group_id = MKHI_GROUP_ID_GEN,
@@ -457,8 +457,9 @@ static void me_print_fwcaps(mbp_fw_caps *caps_section)
}
#endif
+#if CONFIG_CHROMEOS && 0 /* DISABLED */
/* Tell ME to issue a global reset */
-int mkhi_global_reset(void)
+static int mkhi_global_reset(void)
{
struct me_global_reset reset = {
.request_origin = GLOBAL_RESET_BIOS_POST,
@@ -486,10 +487,11 @@ int mkhi_global_reset(void)
printk(BIOS_ERR, "ME: Global Reset failed\n");
return -1;
}
+#endif
#ifdef __SMM__
-void intel_me_finalize_smm(void)
+void intel_me8_finalize_smm(void)
{
struct me_hfs hfs;
u32 reg32;