-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hello all,
The IT8712F needs to have the configuration bits changed to handle the power for memory correctly during suspend.s Signed-off-by: Rudolf Marek <[email protected]> Rudolf -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.9 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iEYEARECAAYFAkngvPAACgkQ3J9wPJqZRNUyNgCdFzIhG8lzMLFuZF8DMGEa/Tdj N/QAoNfB2zflSzibKwBJbxWWpi5Fk5uZ =HVZX -----END PGP SIGNATURE-----
Index: src/superio/ite/it8712f/it8712f_early_serial.c
===================================================================
--- src/superio/ite/it8712f/it8712f_early_serial.c (revision 4093)
+++ src/superio/ite/it8712f/it8712f_early_serial.c (working copy)
@@ -32,6 +32,7 @@
#define IT8712F_CONFIG_REG_CONFIGSEL 0x22 /* Configuration Select. */
#define IT8712F_CONFIG_REG_CLOCKSEL 0x23 /* Clock Selection. */
#define IT8712F_CONFIG_REG_SWSUSP 0x24 /* Software Suspend, Flash I/F. */
+#define IT8712F_CONFIG_REG_MFC 0x2a /* Multi-function control */
#define IT8712F_CONFIG_REG_WATCHDOG 0x72 /* Watchdog control. */
#define IT8712F_CONFIGURATION_PORT 0x2e /* Write-only. */
@@ -78,6 +79,21 @@
}
+static void it8712f_enable_3vsbsw(void) {
+
+ /* We need to set enable 3VSBSW#, this was documented only in IT8712F_V0.9.2!
+ LDN 7, reg 0x2a - needed for S3, or memory power will be cut off.
+ Enable 3VSBSW#. (For System Suspend-to-RAM)
+ 0: 3VSBSW# will be always inactive.
+ 1: 3VSBSW# enabled. It will be (NOT SUSB#) NAND SUSC#.
+ */
+
+ it8712f_enter_conf();
+ it8712f_sio_write(0x07, IT8712F_CONFIG_REG_MFC, 0x80);
+ it8712f_exit_conf();
+}
+
+
static void it8712f_kill_watchdog(void)
{
it8712f_enter_conf();
s3_resume_enable_3VSBSW.patch.sig
Description: Binary data
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