Florian Zumbiehl just uploaded a new patch set to gerrit, which you can find at http://review.coreboot.org/387
-gerrit
commit 6c1769b7824a34cecdd94fab9e54e61c963543a0 Author: Florian Zumbiehl florz@florz.de Date: Tue Nov 1 20:19:37 2011 +0100
make GPIOs and misc configurable via devicetree
Change-Id: I9f70da76b5ea451f28a1ad9252c5d879fc4fe315 Signed-off-by: Florian Zumbiehl florz@florz.de --- src/southbridge/via/vt8237r/chip.h | 5 +++++ src/southbridge/via/vt8237r/lpc.c | 30 +++++++++++++++++++++++++++--- 2 files changed, 32 insertions(+), 3 deletions(-)
diff --git a/src/southbridge/via/vt8237r/chip.h b/src/southbridge/via/vt8237r/chip.h index be5e7fc..64b8e8e 100644 --- a/src/southbridge/via/vt8237r/chip.h +++ b/src/southbridge/via/vt8237r/chip.h @@ -71,6 +71,11 @@ struct southbridge_via_vt8237r_config { u8 usb2_dpll_delay;
u8 no_int_efgh; + u8 enable_gpo3; + u8 disable_gpo26_gpo27; + u8 enable_aol_2_smb_slave; + u8 enable_gpo5; + u8 gpio15_12_dir_output; };
#endif /* SOUTHBRIDGE_VIA_VT8237R_CHIP_H */ diff --git a/src/southbridge/via/vt8237r/lpc.c b/src/southbridge/via/vt8237r/lpc.c index baf3f93..c7d1378 100644 --- a/src/southbridge/via/vt8237r/lpc.c +++ b/src/southbridge/via/vt8237r/lpc.c @@ -159,6 +159,10 @@ static void pci_routing_fixup(struct device *dev) static void setup_pm(device_t dev) { u16 tmp; + struct southbridge_via_vt8237r_config *cfg; + + cfg = dev->chip_info; + /* Debounce LID and PWRBTN# Inputs for 16ms. */ pci_write_config8(dev, 0x80, 0x20);
@@ -187,7 +191,10 @@ static void setup_pm(device_t dev) * 5 = Internal PLL reset from susp disabled * 2 = GPO2 is SUSA# */ - pci_write_config8(dev, 0x94, 0xa0); + tmp = 0xa0; + if (cfg && cfg->enable_gpo3) + tmp |= 0x10; + pci_write_config8(dev, 0x94, tmp);
/* * 7 = stp to sust delay 1msec @@ -203,7 +210,14 @@ static void setup_pm(device_t dev) #if CONFIG_EPIA_VT8237R_INIT pci_write_config8(dev, 0x95, 0xc2); #else - pci_write_config8(dev, 0x95, 0xcc); + tmp = 0xcc; + if (cfg) { + if (cfg->disable_gpo26_gpo27) + tmp &= ~0x08; + if (cfg->enable_aol_2_smb_slave) + tmp &= ~0x04; + } + pci_write_config8(dev, 0x95, tmp); #endif
/* Disable GP3 timer. */ @@ -255,6 +269,9 @@ static void setup_pm(device_t dev) static void vt8237r_init(struct device *dev) { u8 enables; + struct southbridge_via_vt8237r_config *cfg; + + cfg = dev->chip_info;
#if CONFIG_EPIA_VT8237R_INIT printk(BIOS_SPEW, "Entering vt8237r_init, for EPIA.\n"); @@ -290,8 +307,15 @@ static void vt8237r_init(struct device *dev) */ pci_write_config8(dev, 0xe5, 0x09);
+ enables = 0x4; + if (cfg) { + if (cfg->enable_gpo5) + enables |= 0x01; + if (cfg->gpio15_12_dir_output) + enables |= 0x10; + } /* REQ5 as PCI request input - should be together with INTE-INTH. */ - pci_write_config8(dev, 0xe4, 0x4); + pci_write_config8(dev, 0xe4, enables); #endif
/* Set bit 3 of 0x4f (use INIT# as CPU reset). */