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-rw-r--r--src/mainboard/bostentech/gbyt4/mainboard.c97
-rw-r--r--src/mainboard/google/rambi/mainboard.c97
-rw-r--r--src/soc/intel/baytrail/Makefile.inc1
-rw-r--r--src/soc/intel/baytrail/include/soc/int15.h8
-rw-r--r--src/soc/intel/baytrail/int15.c95
5 files changed, 111 insertions, 187 deletions
diff --git a/src/mainboard/bostentech/gbyt4/mainboard.c b/src/mainboard/bostentech/gbyt4/mainboard.c
index d0131bc2d1..da7106aafb 100644
--- a/src/mainboard/bostentech/gbyt4/mainboard.c
+++ b/src/mainboard/bostentech/gbyt4/mainboard.c
@@ -1,107 +1,16 @@
/* SPDX-License-Identifier: GPL-2.0-only */
#include <device/device.h>
-#include <console/console.h>
-#if CONFIG(VGA_ROM_RUN)
-#include <x86emu/x86emu.h>
-#endif
-#include <arch/interrupt.h>
-
-#if CONFIG(VGA_ROM_RUN)
-static int int15_handler(void)
-{
- int res = 1;
-
- printk(BIOS_DEBUG, "%s: AX=%04x BX=%04x CX=%04x DX=%04x\n",
- __func__, X86_AX, X86_BX, X86_CX, X86_DX);
-
- switch (X86_AX) {
- case 0x5f34:
- /*
- * Set Panel Fitting Hook:
- * bit 2 = Graphics Stretching
- * bit 1 = Text Stretching
- * bit 0 = Centering (do not set with bit1 or bit2)
- * 0 = video BIOS default
- */
- X86_AX = 0x005f;
- X86_CX = 0x0001;
- res = 1;
- break;
- case 0x5f35:
- /*
- * Boot Display Device Hook:
- * bit 0 = CRT
- * bit 1 = TV
- * bit 2 = EFP (HDMI)
- * bit 3 = LFP (eDP)*
- * bit 4 = CRT2
- * bit 5 = TV2
- * bit 6 = EFP2
- * bit 7 = LFP2
- */
- X86_AX = 0x005f;
- X86_CX = 0x0008;
- res = 1;
- break;
- case 0x5f51:
- /*
- * Hook to select active LFP configuration:
- * 00h = No LVDS, VBIOS does not enable LVDS
- * 01h = Int-LVDS, LFP driven by integrated LVDS decoder
- * 02h = SVDO-LVDS, LFP driven by SVDO decoder
- * 03h = eDP, LFP Driven by Int-DisplayPort encoder
- */
- X86_AX = 0x005f;
- X86_CX = 0x0003;
- res = 1;
- break;
- case 0x5f70:
- switch ((X86_CX >> 8) & 0xff) {
- case 0:
- /* Get Mux */
- X86_AX = 0x005f;
- X86_CX = 0x0000;
- res = 1;
- break;
- case 1:
- /* Set Mux */
- X86_AX = 0x005f;
- X86_CX = 0x0000;
- res = 1;
- break;
- case 2:
- /* Get SG/Non-SG mode */
- X86_AX = 0x005f;
- X86_CX = 0x0000;
- res = 1;
- break;
- default:
- /* Interrupt was not handled */
- printk(BIOS_DEBUG,
- "Unknown INT15 5f70 function: 0x%02x\n",
- ((X86_CX >> 8) & 0xff));
- break;
- }
- break;
-
- default:
- printk(BIOS_DEBUG, "Unknown INT15 function %04x!\n", X86_AX);
- break;
- }
- return res;
-}
-#endif
+#include <soc/int15.h>
// mainboard_enable is executed as first thing after
// enumerate_buses().
static void mainboard_enable(struct device *dev)
{
-#if CONFIG(VGA_ROM_RUN)
/* Install custom int15 handler for VGA OPROM */
- mainboard_interrupt_handlers(0x15, &int15_handler);
-#endif
+ if (CONFIG(VGA_ROM_RUN))
+ install_baytrail_vga_int15_handler();
}
struct chip_operations mainboard_ops = {
diff --git a/src/mainboard/google/rambi/mainboard.c b/src/mainboard/google/rambi/mainboard.c
index 41d9795c5e..ef1acbdc59 100644
--- a/src/mainboard/google/rambi/mainboard.c
+++ b/src/mainboard/google/rambi/mainboard.c
@@ -2,103 +2,14 @@
#include <device/device.h>
#include <console/console.h>
-#if CONFIG(VGA_ROM_RUN)
-#include <x86emu/x86emu.h>
-#endif
-#include <arch/interrupt.h>
#include <smbios.h>
#include "ec.h"
#include <variant/onboard.h>
#include <soc/gpio.h>
+#include <soc/int15.h>
#include <bootstate.h>
#include <vendorcode/google/chromeos/chromeos.h>
-#if CONFIG(VGA_ROM_RUN)
-static int int15_handler(void)
-{
- int res = 1;
-
- printk(BIOS_DEBUG, "%s: AX=%04x BX=%04x CX=%04x DX=%04x\n",
- __func__, X86_AX, X86_BX, X86_CX, X86_DX);
-
- switch (X86_AX) {
- case 0x5f34:
- /*
- * Set Panel Fitting Hook:
- * bit 2 = Graphics Stretching
- * bit 1 = Text Stretching
- * bit 0 = Centering (do not set with bit1 or bit2)
- * 0 = video BIOS default
- */
- X86_AX = 0x005f;
- X86_CX = 0x0001;
- res = 1;
- break;
- case 0x5f35:
- /*
- * Boot Display Device Hook:
- * bit 0 = CRT
- * bit 1 = TV
- * bit 2 = EFP (HDMI)
- * bit 3 = LFP (eDP)*
- * bit 4 = CRT2
- * bit 5 = TV2
- * bit 6 = EFP2
- * bit 7 = LFP2
- */
- X86_AX = 0x005f;
- X86_CX = 0x0008;
- res = 1;
- break;
- case 0x5f51:
- /*
- * Hook to select active LFP configuration:
- * 00h = No LVDS, VBIOS does not enable LVDS
- * 01h = Int-LVDS, LFP driven by integrated LVDS decoder
- * 02h = SVDO-LVDS, LFP driven by SVDO decoder
- * 03h = eDP, LFP Driven by Int-DisplayPort encoder
- */
- X86_AX = 0x005f;
- X86_CX = 0x0003;
- res = 1;
- break;
- case 0x5f70:
- switch ((X86_CX >> 8) & 0xff) {
- case 0:
- /* Get Mux */
- X86_AX = 0x005f;
- X86_CX = 0x0000;
- res = 1;
- break;
- case 1:
- /* Set Mux */
- X86_AX = 0x005f;
- X86_CX = 0x0000;
- res = 1;
- break;
- case 2:
- /* Get SG/Non-SG mode */
- X86_AX = 0x005f;
- X86_CX = 0x0000;
- res = 1;
- break;
- default:
- /* Interrupt was not handled */
- printk(BIOS_DEBUG,
- "Unknown INT15 5f70 function: 0x%02x\n",
- ((X86_CX >> 8) & 0xff));
- break;
- }
- break;
-
- default:
- printk(BIOS_DEBUG, "Unknown INT15 function %04x!\n", X86_AX);
- break;
- }
- return res;
-}
-#endif
-
static void mainboard_init(struct device *dev)
{
mainboard_ec_init();
@@ -144,10 +55,10 @@ static void mainboard_enable(struct device *dev)
dev->ops->init = mainboard_init;
dev->ops->get_smbios_data = mainboard_smbios_data;
dev->ops->acpi_inject_dsdt = chromeos_dsdt_generator;
-#if CONFIG(VGA_ROM_RUN)
+
/* Install custom int15 handler for VGA OPROM */
- mainboard_interrupt_handlers(0x15, &int15_handler);
-#endif
+ if (CONFIG(VGA_ROM_RUN))
+ install_baytrail_vga_int15_handler();
}
struct chip_operations mainboard_ops = {
diff --git a/src/soc/intel/baytrail/Makefile.inc b/src/soc/intel/baytrail/Makefile.inc
index f49aac45b0..f4c4d7e75a 100644
--- a/src/soc/intel/baytrail/Makefile.inc
+++ b/src/soc/intel/baytrail/Makefile.inc
@@ -48,6 +48,7 @@ ramstage-y += smm.c
ramstage-y += southcluster.c
ramstage-y += xhci.c
ramstage-$(CONFIG_ELOG) += elog.c
+ramstage-$(CONFIG_VGA_ROM_RUN) += int15.c
ifeq ($(CONFIG_HAVE_REFCODE_BLOB),y)
ramstage-y += refcode.c
diff --git a/src/soc/intel/baytrail/include/soc/int15.h b/src/soc/intel/baytrail/include/soc/int15.h
new file mode 100644
index 0000000000..cab911554e
--- /dev/null
+++ b/src/soc/intel/baytrail/include/soc/int15.h
@@ -0,0 +1,8 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#ifndef SOC_INTEL_BAYTRAIL_INT15_H
+#define SOC_INTEL_BAYTRAIL_INT15_H
+
+void install_baytrail_vga_int15_handler(void);
+
+#endif /* !SOC_INTEL_BAYTRAIL_INT15_H */
diff --git a/src/soc/intel/baytrail/int15.c b/src/soc/intel/baytrail/int15.c
new file mode 100644
index 0000000000..62abbc11a6
--- /dev/null
+++ b/src/soc/intel/baytrail/int15.c
@@ -0,0 +1,95 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#include <arch/interrupt.h>
+#include <console/console.h>
+#include <soc/int15.h>
+#include <x86emu/x86emu.h>
+
+static int int15_handler(void)
+{
+ int res = 1;
+
+ printk(BIOS_DEBUG, "%s: AX=%04x BX=%04x CX=%04x DX=%04x\n",
+ __func__, X86_AX, X86_BX, X86_CX, X86_DX);
+
+ switch (X86_AX) {
+ case 0x5f34:
+ /*
+ * Set Panel Fitting Hook:
+ * bit 2 = Graphics Stretching
+ * bit 1 = Text Stretching
+ * bit 0 = Centering (do not set with bit1 or bit2)
+ * 0 = video BIOS default
+ */
+ X86_AX = 0x005f;
+ X86_CX = 0x0001;
+ res = 1;
+ break;
+ case 0x5f35:
+ /*
+ * Boot Display Device Hook:
+ * bit 0 = CRT
+ * bit 1 = TV
+ * bit 2 = EFP (HDMI)
+ * bit 3 = LFP (eDP)*
+ * bit 4 = CRT2
+ * bit 5 = TV2
+ * bit 6 = EFP2
+ * bit 7 = LFP2
+ */
+ X86_AX = 0x005f;
+ X86_CX = 0x0008;
+ res = 1;
+ break;
+ case 0x5f51:
+ /*
+ * Hook to select active LFP configuration:
+ * 00h = No LVDS, VBIOS does not enable LVDS
+ * 01h = Int-LVDS, LFP driven by integrated LVDS decoder
+ * 02h = SVDO-LVDS, LFP driven by SVDO decoder
+ * 03h = eDP, LFP Driven by Int-DisplayPort encoder
+ */
+ X86_AX = 0x005f;
+ X86_CX = 0x0003;
+ res = 1;
+ break;
+ case 0x5f70:
+ switch ((X86_CX >> 8) & 0xff) {
+ case 0:
+ /* Get Mux */
+ X86_AX = 0x005f;
+ X86_CX = 0x0000;
+ res = 1;
+ break;
+ case 1:
+ /* Set Mux */
+ X86_AX = 0x005f;
+ X86_CX = 0x0000;
+ res = 1;
+ break;
+ case 2:
+ /* Get SG/Non-SG mode */
+ X86_AX = 0x005f;
+ X86_CX = 0x0000;
+ res = 1;
+ break;
+ default:
+ /* Interrupt was not handled */
+ printk(BIOS_DEBUG,
+ "Unknown INT15 5f70 function: 0x%02x\n",
+ ((X86_CX >> 8) & 0xff));
+ break;
+ }
+ break;
+
+ default:
+ printk(BIOS_DEBUG, "Unknown INT15 function %04x!\n", X86_AX);
+ break;
+ }
+ return res;
+}
+
+void install_baytrail_vga_int15_handler(void)
+{
+ mainboard_interrupt_handlers(0x15, &int15_handler);
+}
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-03 04:52:35 +0000