This adds VT8237A specific VLINK/LPC init functions in vt8237_ctrl.c and vt8237r_lpc.c
Signed-off-by: Tobias Diedrich ranma+coreboot@tdiedrich.de
---
diff -Nru -x .svn -x .pc -x patches src.orig/southbridge/via/vt8237r/vt8237_ctrl.c src/southbridge/via/vt8237r/vt8237_ctrl.c --- src.orig/southbridge/via/vt8237r/vt8237_ctrl.c 2010-10-27 12:30:20.000000000 +0200 +++ src/southbridge/via/vt8237r/vt8237_ctrl.c 2010-10-27 12:33:44.000000000 +0200 @@ -168,6 +168,69 @@
}
+static void vt8237a_vlink_init(struct device *dev) +{ + u8 reg; + device_t devfun7; + + devfun7 = dev_find_device(PCI_VENDOR_ID_VIA, + PCI_DEVICE_ID_VIA_K8T890CE_7, 0); + if (!devfun7) + devfun7 = dev_find_device(PCI_VENDOR_ID_VIA, + PCI_DEVICE_ID_VIA_K8M890CE_7, 0); + if (!devfun7) + devfun7 = dev_find_device(PCI_VENDOR_ID_VIA, + PCI_DEVICE_ID_VIA_K8T890CF_7, 0); + /* No pairing NB was found. */ + if (!devfun7) + return; + + /* + * This init code is valid only for the VT8237A! For different + * sounthbridges (e.g. VT8237S, VT8237R (without plus R) + * and VT8251) a different init code is required. + */ + + /* disable auto disconnect */ + reg = pci_read_config8(devfun7, 0x42); + reg &= ~0x4; + pci_write_config8(devfun7, 0x42, reg); + + /* NB part setup */ + pci_write_config8(devfun7, 0xb5, 0x88); + pci_write_config8(devfun7, 0xb6, 0x88); + pci_write_config8(devfun7, 0xb7, 0x61); + + reg = pci_read_config8(devfun7, 0xb4); + reg |= 0x11; + pci_write_config8(devfun7, 0xb4, reg); + + pci_write_config8(devfun7, 0xb0, 0x6); + pci_write_config8(devfun7, 0xb1, 0x1); + + /* SB part setup */ + pci_write_config8(dev, 0xb7, 0x50); + pci_write_config8(dev, 0xb9, 0x88); + pci_write_config8(dev, 0xba, 0x8a); + pci_write_config8(dev, 0xbb, 0x88); + + reg = pci_read_config8(dev, 0xbd); + reg |= 0x3; + reg &= ~0x4; + pci_write_config8(dev, 0xbd, reg); + + reg = pci_read_config8(dev, 0xbc); + reg &= ~0x7; + pci_write_config8(dev, 0xbc, reg); + + pci_write_config8(dev, 0x48, 0x23); + + /* enable auto disconnect, for STPGNT and HALT */ + reg = pci_read_config8(devfun7, 0x42); + reg |= 0x7; + pci_write_config8(devfun7, 0x42, reg); +} + static void ctrl_enable(struct device *dev) { /* Enable the 0:13 and 0:13.1. */ @@ -193,6 +256,12 @@ vt8237s_vlink_init(dev); }
+ devsb = dev_find_device(PCI_VENDOR_ID_VIA, + PCI_DEVICE_ID_VIA_VT8237A_LPC, 0); + if (devsb) { + vt8237a_vlink_init(dev); + } + /* Configure PCI1 and copy mirror registers from D0F3. */ vt8237_cfg(dev); dump_south(dev); diff -Nru -x .svn -x .pc -x patches src.orig/southbridge/via/vt8237r/vt8237r_lpc.c src/southbridge/via/vt8237r/vt8237r_lpc.c --- src.orig/southbridge/via/vt8237r/vt8237r_lpc.c 2010-10-27 12:30:21.000000000 +0200 +++ src/southbridge/via/vt8237r/vt8237r_lpc.c 2010-10-27 12:33:44.000000000 +0200 @@ -319,6 +319,60 @@ printk(BIOS_SPEW, "Leaving %s.\n", __func__); }
+static void vt8237a_init(struct device *dev) +{ + u32 tmp; + device_t pdev; + + /* Set bit 3 of 0x4f (use INIT# as CPU reset). */ + tmp = pci_read_config8(dev, 0x4f); + tmp |= 0x08; + pci_write_config8(dev, 0x4f, tmp); + + /* + * bit2: REQ5 as PCI request input - should be together with INTE-INTH. + * bit5: usb power control lines as gpio + */ + pci_write_config8(dev, 0xe4, 0x24); + /* + * Enable APIC wakeup from INTH + * Enable SATA LED, disable special CPU Frequency Change - + * GPIO28 GPIO22 GPIO29 GPIO23 are GPIOs. + */ + pci_write_config8(dev, 0xe5, 0x69); + + /* Reduce further the STPCLK/LDTSTP signal to 5us. */ + pci_write_config8(dev, 0xec, 0x4); + + /* Host Bus Power Management Control, maybe not needed */ + pci_write_config8(dev, 0x8c, 0x5); + + /* Enable HPET at VT8237R_HPET_ADDR. */ + pci_write_config32(dev, 0x68, (VT8237R_HPET_ADDR | 0x80)); + + southbridge_init_common(dev); + + /* FIXME: Intel needs more bit set for C2/C3. */ + + /* + * Allow SLP# signal to assert LDTSTOP_L. + * Will work for C3 and for FID/VID change. FIXME FIXME, pre rev A2. + */ + outb(0x1, VT8237R_ACPI_IO_BASE + 0x11); + + /* FIXME: Azalia not working yet, disable audio device */ + pdev = dev_find_device(PCI_VENDOR_ID_VIA, + 0x337b, 0); + if (pdev) { + printk(BIOS_DEBUG, "FIXME: Azalia audio not working yet, disabled.\n"); + tmp = pci_read_config8(pdev, 0x42); + tmp |= 8; + pci_write_config8(pdev, 0x42, tmp); + } + + dump_south(dev); +} + static void vt8237s_init(struct device *dev) { u32 tmp; @@ -541,7 +595,7 @@ .read_resources = vt8237r_read_resources, .set_resources = pci_dev_set_resources, .enable_resources = pci_dev_enable_resources, - .init = vt8237r_init, + .init = vt8237a_init, .scan_bus = scan_static_bus, };