Florian Zumbiehl just uploaded a new patch set to gerrit, which you can find at http://review.coreboot.org/384
-gerrit
commit e6817cafe94d64953fa5590c37bf58d76759f14b Author: Florian Zumbiehl florz@florz.de Date: Tue Nov 1 20:19:06 2011 +0100
implement hwmon fan divisor setting for w83697hf
Change-Id: I887ac1142875ca1dc1a1eb8eebec402fbe7512c3 Signed-off-by: Florian Zumbiehl florz@florz.de --- src/superio/winbond/w83697hf/chip.h | 3 +- src/superio/winbond/w83697hf/superio.c | 34 ++++++++++++++++++++++++++++++++ 2 files changed, 36 insertions(+), 1 deletions(-)
diff --git a/src/superio/winbond/w83697hf/chip.h b/src/superio/winbond/w83697hf/chip.h index 1a1cbcc..2359b66 100644 --- a/src/superio/winbond/w83697hf/chip.h +++ b/src/superio/winbond/w83697hf/chip.h @@ -26,7 +26,8 @@ extern struct chip_operations superio_winbond_w83697hf_ops;
struct superio_winbond_w83697hf_config { - + unsigned int hwmon_fan1_divisor; + unsigned int hwmon_fan2_divisor; };
#endif diff --git a/src/superio/winbond/w83697hf/superio.c b/src/superio/winbond/w83697hf/superio.c index d2cbcbd..8f090d0 100644 --- a/src/superio/winbond/w83697hf/superio.c +++ b/src/superio/winbond/w83697hf/superio.c @@ -41,10 +41,44 @@ static void pnp_exit_ext_func_mode(device_t dev) outb(0xaa, dev->path.pnp.port); }
+static void hwmon_set_fan_divisor(unsigned int base, int num, unsigned int divisor) { + unsigned char enc, buf; + + if (divisor) { + enc = log2(divisor); + if (1 << enc != divisor || enc > 7) + die("invalid fan divisor"); + outb(0x4e, base + 5); + outb(0x00, base + 6); + outb(0x47, base + 5); + outb((inb(base + 6) & ~(0x30 << (num * 2))) | ((enc & 3) << (4 + num * 2)), base + 6); + outb(0x5d, base + 5); + buf = inb(base + 6); + /* the above inb() auto-increments the address pointer ... */ + outb(0x5d, base + 5); + outb((buf & ~(0x20 << num)) | ((enc & 4) << (3 + num)), base + 6); + } +} + static void w83697hf_init(device_t dev) { + struct resource *res0; + struct superio_winbond_w83697hf_config *cfg; + if (!dev->enabled) return; + + cfg = dev->chip_info; + + switch (dev->path.pnp.device) { + case W83697HF_HWM: + if (cfg) { + res0 = find_resource(dev, PNP_IDX_IO0); + hwmon_set_fan_divisor(res0->base, 0, cfg->hwmon_fan1_divisor); + hwmon_set_fan_divisor(res0->base, 1, cfg->hwmon_fan2_divisor); + } + break; + } }
static void w83697hf_pnp_set_resources(device_t dev)