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-rw-r--r--src/superio/ite/it8712f/Makefile.inc2
-rw-r--r--src/superio/ite/it8712f/chip.h6
-rw-r--r--src/superio/ite/it8712f/it8712f.h3
-rw-r--r--src/superio/ite/it8712f/it8712f_early_serial.c70
-rw-r--r--src/superio/ite/it8712f/superio.c22
5 files changed, 42 insertions, 61 deletions
diff --git a/src/superio/ite/it8712f/Makefile.inc b/src/superio/ite/it8712f/Makefile.inc
index 08b2223192..8c8ace6fd8 100644
--- a/src/superio/ite/it8712f/Makefile.inc
+++ b/src/superio/ite/it8712f/Makefile.inc
@@ -18,5 +18,5 @@
## Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
##
-#config chip.h
ramstage-$(CONFIG_SUPERIO_ITE_IT8712F) += superio.c
+
diff --git a/src/superio/ite/it8712f/chip.h b/src/superio/ite/it8712f/chip.h
index 22dfa8dcc8..844d4df7a0 100644
--- a/src/superio/ite/it8712f/chip.h
+++ b/src/superio/ite/it8712f/chip.h
@@ -18,8 +18,8 @@
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
-#ifndef _SUPERIO_ITE_IT8712F
-#define _SUPERIO_ITE_IT8712F
+#ifndef SUPERIO_ITE_IT8712F_CHIP_H
+#define SUPERIO_ITE_IT8712F_CHIP_H
#include <device/device.h>
#include <pc80/keyboard.h>
@@ -32,4 +32,4 @@ struct superio_ite_it8712f_config {
struct pc_keyboard keyboard;
};
-#endif /* _SUPERIO_ITE_IT8712F */
+#endif
diff --git a/src/superio/ite/it8712f/it8712f.h b/src/superio/ite/it8712f/it8712f.h
index 60c7413b3e..609f361a66 100644
--- a/src/superio/ite/it8712f/it8712f.h
+++ b/src/superio/ite/it8712f/it8712f.h
@@ -19,7 +19,6 @@
*/
/* Datasheet: http://www.ite.com.tw/product_info/PC/Brief-IT8712_2.asp */
-/* Status: Com1 is tested and works. */
#define IT8712F_FDC 0x00 /* Floppy */
#define IT8712F_SP1 0x01 /* Com1 */
@@ -35,7 +34,7 @@
#ifndef __ROMCC__
void it8712f_kill_watchdog(void);
-void it8712f_enable_serial(device_t dev, unsigned iobase);
+void it8712f_enable_serial(device_t dev, u16 iobase);
void it8712f_24mhz_clkin(void);
void it8712f_enable_3vsbsw(void);
#endif
diff --git a/src/superio/ite/it8712f/it8712f_early_serial.c b/src/superio/ite/it8712f/it8712f_early_serial.c
index 76f9bc0d07..ebc8e0a7f1 100644
--- a/src/superio/ite/it8712f/it8712f_early_serial.c
+++ b/src/superio/ite/it8712f/it8712f_early_serial.c
@@ -24,7 +24,7 @@
/* The base address is 0x2e or 0x4e, depending on config bytes. */
#define SIO_BASE 0x2e
#define SIO_INDEX SIO_BASE
-#define SIO_DATA SIO_BASE+1
+#define SIO_DATA (SIO_BASE + 1)
/* Global configuration registers. */
#define IT8712F_CONFIG_REG_CC 0x02 /* Configure Control (write-only). */
@@ -35,11 +35,7 @@
#define IT8712F_CONFIG_REG_MFC 0x2a /* Multi-function control */
#define IT8712F_CONFIG_REG_WATCHDOG 0x72 /* Watchdog control. */
-#define IT8712F_CONFIGURATION_PORT 0x2e /* Write-only. */
-
-/* The content of IT8712F_CONFIG_REG_LDN (index 0x07) must be set to the
- LDN the register belongs to, before you can access the register. */
-static void it8712f_sio_write(uint8_t ldn, uint8_t index, uint8_t value)
+static void it8712f_sio_write(u8 ldn, u8 index, u8 value)
{
outb(IT8712F_CONFIG_REG_LDN, SIO_BASE);
outb(ldn, SIO_DATA);
@@ -49,75 +45,69 @@ static void it8712f_sio_write(uint8_t ldn, uint8_t index, uint8_t value)
static void it8712f_enter_conf(void)
{
- /* Enter the configuration state (MB PnP mode). */
-
- /* Perform MB PnP setup to put the SIO chip at 0x2e. */
- /* Base address 0x2e: 0x87 0x01 0x55 0x55. */
- /* Base address 0x4e: 0x87 0x01 0x55 0xaa. */
- outb(0x87, IT8712F_CONFIGURATION_PORT);
- outb(0x01, IT8712F_CONFIGURATION_PORT);
- outb(0x55, IT8712F_CONFIGURATION_PORT);
- outb(0x55, IT8712F_CONFIGURATION_PORT);
+ u16 port = 0x2e; /* TODO: Don't hardcode! */
+
+ outb(0x87, port);
+ outb(0x01, port);
+ outb(0x55, port);
+ outb((port == 0x4e) ? 0xaa : 0x55, port);
}
static void it8712f_exit_conf(void)
{
- /* Exit the configuration state (MB PnP mode). */
it8712f_sio_write(0x00, IT8712F_CONFIG_REG_CC, 0x02);
}
+/* Select 24MHz CLKIN (48MHz is the default). */
void it8712f_24mhz_clkin(void)
{
it8712f_enter_conf();
-
- /* Select 24MHz CLKIN (48MHZ default)*/
it8712f_sio_write(0x00, IT8712F_CONFIG_REG_CLOCKSEL, 0x1);
-
it8712f_exit_conf();
}
+/*
+ * 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#.
+ */
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_sio_write(IT8712F_GPIO, IT8712F_CONFIG_REG_MFC, 0x80);
it8712f_exit_conf();
}
void it8712f_kill_watchdog(void)
{
it8712f_enter_conf();
-
- /* Kill the Watchdog */
- it8712f_sio_write(0x07, IT8712F_CONFIG_REG_WATCHDOG, 0x00);
-
+ it8712f_sio_write(IT8712F_GPIO, IT8712F_CONFIG_REG_WATCHDOG, 0x00);
it8712f_exit_conf();
}
-/* Enable the peripheral devices on the IT8712F Super I/O chip. */
-void it8712f_enable_serial(device_t dev, unsigned iobase)
+/* Enable the serial port(s). */
+void it8712f_enable_serial(device_t dev, u16 iobase)
{
-
/* (1) Enter the configuration state (MB PnP mode). */
it8712f_enter_conf();
/* (2) Modify the data of configuration registers. */
- /* Select the chip to configure (if there's more than one).
- Set bit 7 to select JP3=1, clear bit 7 to select JP3=0.
- If this register is not written, both chips are configured. */
+ /*
+ * Select the chip to configure (if there's more than one).
+ * Set bit 7 to select JP3=1, clear bit 7 to select JP3=0.
+ * If this register is not written, both chips are configured.
+ */
+
/* it8712f_sio_write(0x00, IT8712F_CONFIG_REG_CONFIGSEL, 0x00); */
/* Enable serial port(s). */
- it8712f_sio_write(IT8712F_SP1, 0x30, 0x1); /* Serial port 1 */
- it8712f_sio_write(IT8712F_SP2, 0x30, 0x1); /* Serial port 2 */
+ it8712f_sio_write(IT8712F_SP1, 0x30, 0x1); /* Serial port 1 */
+ it8712f_sio_write(IT8712F_SP2, 0x30, 0x1); /* Serial port 2 */
/* Clear software suspend mode (clear bit 0). TODO: Needed? */
/* it8712f_sio_write(0x00, IT8712F_CONFIG_REG_SWSUSP, 0x00); */
diff --git a/src/superio/ite/it8712f/superio.c b/src/superio/ite/it8712f/superio.c
index 2d2a83a943..4d41ac3412 100644
--- a/src/superio/ite/it8712f/superio.c
+++ b/src/superio/ite/it8712f/superio.c
@@ -28,19 +28,14 @@
#include "chip.h"
#include "it8712f.h"
-/* Base address 0x2e: 0x87 0x01 0x55 0x55. */
-/* Base address 0x4e: 0x87 0x01 0x55 0xaa. */
static void pnp_enter_ext_func_mode(device_t dev)
{
- outb(0x87, dev->path.pnp.port);
- outb(0x01, dev->path.pnp.port);
- outb(0x55, dev->path.pnp.port);
+ u16 port = dev->path.pnp.port;
- if (dev->path.pnp.port == 0x4e) {
- outb(0xaa, dev->path.pnp.port);
- } else {
- outb(0x55, dev->path.pnp.port);
- }
+ outb(0x87, port);
+ outb(0x01, port);
+ outb(0x55, port);
+ outb((port == 0x4e) ? 0xaa : 0x55, port);
}
static void pnp_exit_ext_func_mode(device_t dev)
@@ -50,14 +45,11 @@ static void pnp_exit_ext_func_mode(device_t dev)
static void it8712f_init(device_t dev)
{
- struct superio_ite_it8712f_config *conf;
+ struct superio_ite_it8712f_config *conf = dev->chip_info;
struct resource *res0, *res1;
- if (!dev->enabled) {
+ if (!dev->enabled)
return;
- }
-
- conf = dev->chip_info;
switch (dev->path.pnp.device) {
case IT8712F_FDC: /* TODO. */
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-22 21:01:36 +0000