From 497c8effceb9510ca89561a8fcc87cbc0acb8b08 Mon Sep 17 00:00:00 2001 From: Rudolf Marek Date: Mon, 13 Apr 2009 18:00:09 +0000 Subject: Following patch adds support for resume on VT8237 based motherboards. The NB part of this patch adds support for resume well NVRAM. In which DQS values are stored. Signed-off-by: Rudolf Marek Acked-by: Peter Stuge git-svn-id: svn://svn.coreboot.org/coreboot/trunk@4100 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1 --- src/southbridge/via/vt8237r/vt8237r_lpc.c | 23 +++++++++++++++++++---- 1 file changed, 19 insertions(+), 4 deletions(-) (limited to 'src/southbridge/via/vt8237r/vt8237r_lpc.c') diff --git a/src/southbridge/via/vt8237r/vt8237r_lpc.c b/src/southbridge/via/vt8237r/vt8237r_lpc.c index 4fbc29575a..d33dc48231 100644 --- a/src/southbridge/via/vt8237r/vt8237r_lpc.c +++ b/src/southbridge/via/vt8237r/vt8237r_lpc.c @@ -149,8 +149,13 @@ static void pci_routing_fixup(struct device *dev) * Set up the power management capabilities directly into ACPI mode. * This avoids having to handle any System Management Interrupts (SMIs). */ + +extern u8 acpi_slp_type; + + static void setup_pm(device_t dev) { + u16 tmp; /* Debounce LID and PWRBTN# Inputs for 16ms. */ pci_write_config8(dev, 0x80, 0x20); @@ -171,10 +176,10 @@ static void setup_pm(device_t dev) /* * 7 = SMBus clock from RTC 32.768KHz - * 5 = Internal PLL reset from susp - * 2 = GPO2 is GPIO + * 5 = Internal PLL reset from susp disabled + * 2 = GPO2 is SUSA# */ - pci_write_config8(dev, 0x94, 0xa4); + pci_write_config8(dev, 0x94, 0xa0); /* * 7 = stp to sust delay 1msec @@ -219,7 +224,17 @@ static void setup_pm(device_t dev) outb(0x0, VT8237R_ACPI_IO_BASE + 0x42); /* SCI is generated for RTC/pwrBtn/slpBtn. */ - outw(0x001, VT8237R_ACPI_IO_BASE + 0x04); + tmp = inw(VT8237R_ACPI_IO_BASE + 0x04); + acpi_slp_type = ((tmp & (7 << 10)) >> 10) == 1 ? 3 : 0 ; + printk_debug("SLP_TYP type was %x %x\n", tmp, acpi_slp_type); + /* clear sleep */ + tmp &= ~(7 << 10); + tmp |= 1; + outw(tmp, VT8237R_ACPI_IO_BASE + 0x04); + + + + } static void vt8237r_init(struct device *dev) -- cgit v1.2.3