From 7b717336e2873fd6d9f178a12549eaa2367d14d0 Mon Sep 17 00:00:00 2001
From: ths <ths@c046a42c-6fe2-441c-8c8c-71466251a162>
Date: Mon, 28 May 2007 21:01:02 +0000
Subject: [PATCH] SMBus support for MIPS Malta.

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@2893 c046a42c-6fe2-441c-8c8c-71466251a162
---
 Makefile.target |  2 +-
 hw/acpi.c       |  5 +----
 hw/mips_malta.c | 17 +++++++++++++----
 hw/pc.c         |  2 +-
 vl.h            |  2 +-
 5 files changed, 17 insertions(+), 11 deletions(-)

diff --git a/Makefile.target b/Makefile.target
index 45928f3c49..b8abf3e354 100644
--- a/Makefile.target
+++ b/Makefile.target
@@ -438,7 +438,7 @@ ifeq ($(TARGET_BASE_ARCH), mips)
 VL_OBJS+= mips_r4k.o mips_malta.o mips_pica61.o
 VL_OBJS+= mips_timer.o mips_int.o dma.o vga.o serial.o i8254.o i8259.o
 VL_OBJS+= ide.o gt64xxx.o pckbd.o ps2.o fdc.o mc146818rtc.o usb-uhci.o acpi.o ds1225y.o
-VL_OBJS+= piix_pci.o parallel.o mixeng.o cirrus_vga.o $(SOUND_HW) $(AUDIODRV)
+VL_OBJS+= piix_pci.o smbus_eeprom.o parallel.o mixeng.o cirrus_vga.o $(SOUND_HW) $(AUDIODRV)
 CPPFLAGS += -DHAS_AUDIO
 endif
 ifeq ($(TARGET_BASE_ARCH), sparc)
diff --git a/hw/acpi.c b/hw/acpi.c
index de4002e92f..ce3f7f2df6 100644
--- a/hw/acpi.c
+++ b/hw/acpi.c
@@ -24,7 +24,6 @@
 #define PM_FREQ 3579545
 
 #define ACPI_DBG_IO_ADDR  0xb044
-#define SMB_IO_BASE       0xb100
 
 typedef struct PIIX4PMState {
     PCIDevice dev;
@@ -451,11 +450,10 @@ static int pm_load(QEMUFile* f,void* opaque,int version_id)
     return 0;
 }
 
-i2c_bus *piix4_pm_init(PCIBus *bus, int devfn)
+i2c_bus *piix4_pm_init(PCIBus *bus, int devfn, uint32_t smb_io_base)
 {
     PIIX4PMState *s;
     uint8_t *pci_conf;
-    uint32_t smb_io_base;
 
     s = (PIIX4PMState *)pci_register_device(bus,
                                          "PM", sizeof(PIIX4PMState),
@@ -486,7 +484,6 @@ i2c_bus *piix4_pm_init(PCIBus *bus, int devfn)
     pci_conf[0x67] = (serial_hds[0] != NULL ? 0x08 : 0) |
 	(serial_hds[1] != NULL ? 0x90 : 0);
 
-    smb_io_base = SMB_IO_BASE;
     pci_conf[0x90] = smb_io_base | 1;
     pci_conf[0x91] = smb_io_base >> 8;
     pci_conf[0xd2] = 0x09;
diff --git a/hw/mips_malta.c b/hw/mips_malta.c
index 82ba809522..6339cc9419 100644
--- a/hw/mips_malta.c
+++ b/hw/mips_malta.c
@@ -775,6 +775,10 @@ void mips_malta_init (int ram_size, int vga_ram_size, int boot_device,
     int ret;
     mips_def_t *def;
     qemu_irq *i8259;
+    int piix4_devfn;
+    uint8_t *eeprom_buf;
+    i2c_bus *smbus;
+    int i;
 
     /* init CPUs */
     if (cpu_model == NULL) {
@@ -843,10 +847,15 @@ void mips_malta_init (int ram_size, int vga_ram_size, int boot_device,
     pci_bus = pci_gt64120_init(i8259);
 
     /* Southbridge */
-    piix4_init(pci_bus, 80);
-    pci_piix3_ide_init(pci_bus, bs_table, 81, i8259);
-    usb_uhci_init(pci_bus, 82);
-    piix4_pm_init(pci_bus, 83);
+    piix4_devfn = piix4_init(pci_bus, 80);
+    pci_piix3_ide_init(pci_bus, bs_table, piix4_devfn + 1, i8259);
+    usb_uhci_init(pci_bus, piix4_devfn + 2);
+    smbus = piix4_pm_init(pci_bus, piix4_devfn + 3, 0x1100);
+    eeprom_buf = qemu_mallocz(8 * 256); /* XXX: make this persistent */
+    for (i = 0; i < 8; i++) {
+        /* TODO: Populate SPD eeprom data.  */
+        smbus_eeprom_device_init(smbus, 0x50 + i, eeprom_buf + (i * 256));
+    }
     pit = pit_init(0x40, i8259[0]);
     DMA_init(0);
 
diff --git a/hw/pc.c b/hw/pc.c
index b91b64faef..1cd5d4cff8 100644
--- a/hw/pc.c
+++ b/hw/pc.c
@@ -905,7 +905,7 @@ static void pc_init1(int ram_size, int vga_ram_size, int boot_device,
         i2c_bus *smbus;
 
         /* TODO: Populate SPD eeprom data.  */
-        smbus = piix4_pm_init(pci_bus, piix3_devfn + 3);
+        smbus = piix4_pm_init(pci_bus, piix3_devfn + 3, 0xb100);
         for (i = 0; i < 8; i++) {
             smbus_eeprom_device_init(smbus, 0x50 + i, eeprom_buf + (i * 256));
         }
diff --git a/vl.h b/vl.h
index 8fed8374d9..21525fdc92 100644
--- a/vl.h
+++ b/vl.h
@@ -1132,7 +1132,7 @@ int pcspk_audio_init(AudioState *, qemu_irq *pic);
 
 /* acpi.c */
 extern int acpi_enabled;
-i2c_bus *piix4_pm_init(PCIBus *bus, int devfn);
+i2c_bus *piix4_pm_init(PCIBus *bus, int devfn, uint32_t smb_io_base);
 void piix4_smbus_register_device(SMBusDevice *dev, uint8_t addr);
 void acpi_bios_init(void);