[LinuxBIOS] PATCH: IT8673F Super IO support.
Uwe Hermann
uwe at hermann-uwe.de
Fri Aug 25 03:59:26 CEST 2006
Hi,
here's a patch which adds support for the IT8673F Super IO. I cannot
test it at the moment (other than that it builds), but it's reasonably
similar to the IT8671F, so I think it should work (given that I didn't
miss anything important in the datasheet).
HTH, Uwe.
--
Uwe Hermann
http://www.hermann-uwe.de
http://www.it-services-uh.de | http://www.crazy-hacks.org
http://www.holsham-traders.de | http://www.unmaintained-free-software.org
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Index: src/superio/ite/it8673f/it8673f.h
===================================================================
--- src/superio/ite/it8673f/it8673f.h (Revision 0)
+++ src/superio/ite/it8673f/it8673f.h (Revision 0)
@@ -0,0 +1,26 @@
+/*
+ * Copyright (C) 2006 Uwe Hermann <uwe at hermann-uwe.de>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#define IT8673F_FDC 0x00 /* Floppy */
+#define IT8673F_SP1 0x01 /* Com1 */
+#define IT8673F_SP2 0x02 /* Com2 */
+#define IT8673F_PP 0x03 /* Parallel port */
+#define IT8673F_FAN 0x04 /* Fan controller */
+#define IT8673F_KBCK 0x05 /* Keyboard */
+#define IT8673F_KBCM 0x06 /* Mouse */
+
Index: src/superio/ite/it8673f/Config.lb
===================================================================
--- src/superio/ite/it8673f/Config.lb (Revision 0)
+++ src/superio/ite/it8673f/Config.lb (Revision 0)
@@ -0,0 +1,2 @@
+config chip.h
+object superio.o
Index: src/superio/ite/it8673f/it8673f_early_serial.c
===================================================================
--- src/superio/ite/it8673f/it8673f_early_serial.c (Revision 0)
+++ src/superio/ite/it8673f/it8673f_early_serial.c (Revision 0)
@@ -0,0 +1,95 @@
+/*
+ * Copyright (C) 2006 Uwe Hermann <uwe at hermann-uwe.de>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <arch/romcc_io.h>
+#include "it8673f.h"
+
+/* The base address is 0x3f0, 0x3bd, or 0x370, depending on config bytes. */
+#define SIO_BASE 0x3f0
+#define SIO_INDEX SIO_BASE
+#define SIO_DATA SIO_BASE+1
+
+/* Global Configuration Registers. */
+#define IT8673F_CONFIG_REG_CC 0x02 /* Configure Control (write-only). */
+#define IT8673F_CONFIG_REG_LDN 0x07 /* Logical Device Number. */
+#define IT8673F_CONFIG_REG_CLOCKSEL 0x23 /* Clock Selection. */
+#define IT8673F_CONFIG_REG_SWSUSP 0x24 /* Software Suspend. */
+
+#define IT8673F_CONFIGURATION_PORT 0x0279 /* Write-only. */
+
+/* Special values used for entering MB PnP mode. The first four bytes of
+ * each line determine the address port, the last four are data. */
+static const uint8_t init_values[] = {
+ 0x6a, 0xb5, 0xda, 0xed, /**/ 0xf6, 0xfb, 0x7d, 0xbe,
+ 0xdf, 0x6f, 0x37, 0x1b, /**/ 0x0d, 0x86, 0xc3, 0x61,
+ 0xb0, 0x58, 0x2c, 0x16, /**/ 0x8b, 0x45, 0xa2, 0xd1,
+ 0xe8, 0x74, 0x3a, 0x9d, /**/ 0xce, 0xe7, 0x73, 0x39,
+};
+
+/* The content of IT8673F_CONFIG_REG_LDN (index 0x07) must be set to the
+ * LDN the register belongs to, before you can access the register. */
+static void it8673f_sio_write(uint8_t ldn, uint8_t index, uint8_t value)
+{
+ outb(IT8673F_CONFIG_REG_LDN, SIO_BASE);
+ outb(ldn, SIO_DATA);
+ outb(index, SIO_BASE);
+ outb(value, SIO_DATA);
+}
+
+/* Enable the peripheral devices on the IT8673F Super IO chip. */
+static void it8673f_enable_serial(device_t dev, unsigned iobase)
+{
+ uint8_t i;
+
+ /* (1) Enter the configuration state (MB PnP mode). */
+
+ /* Perform MB PnP setup to put the SIO chip at 0x3f0. */
+ /* Base address 0x3f0: 0x86 0x80 0x55 0x55. */
+ /* Base address 0x3bd: 0x86 0x80 0x55 0xaa. */
+ /* Base address 0x370: 0x86 0x80 0xaa 0x55. */
+ outb(0x86, IT8673F_CONFIGURATION_PORT);
+ outb(0x80, IT8673F_CONFIGURATION_PORT);
+ outb(0x55, IT8673F_CONFIGURATION_PORT);
+ outb(0x55, IT8673F_CONFIGURATION_PORT);
+
+ /* Sequentially write the 32 special values. */
+ for (i = 0; i < 32; i++) {
+ outb(init_values[i], SIO_BASE);
+ }
+
+ /* (2) Modify the data of configuration registers. */
+
+ /* Enable all devices. */
+ it8673f_sio_write(IT8673F_FDC, 0x30, 0x1); /* Floppy */
+ it8673f_sio_write(IT8673F_SP1, 0x30, 0x1); /* Serial port 1 */
+ it8673f_sio_write(IT8673F_SP2, 0x30, 0x1); /* Serial port 2 */
+ it8673f_sio_write(IT8673F_PP, 0x30, 0x1); /* Parallel port */
+ it8673f_sio_write(IT8673F_FAN, 0x30, 0x1); /* Fan controller */
+ it8673f_sio_write(IT8673F_KBCK, 0x30, 0x1); /* Keyboard */
+ it8673f_sio_write(IT8673F_KBCM, 0x30, 0x1); /* Mouse */
+
+ /* Select 24MHz CLKIN (clear bit 0). TODO: is this really needed? */
+ it8673f_sio_write(0x00, IT8673F_CONFIG_REG_CLOCKSEL, 0x00);
+
+ /* Clear software suspend mode (clear bit 0). */
+ it8673f_sio_write(0x00, IT8673F_CONFIG_REG_SWSUSP, 0x00);
+
+ /* (3) Exit the configuration state (MB PnP mode). */
+ it8673f_sio_write(0x00, IT8673F_CONFIG_REG_CC, 0x02);
+}
+
Index: src/superio/ite/it8673f/superio.c
===================================================================
--- src/superio/ite/it8673f/superio.c (Revision 0)
+++ src/superio/ite/it8673f/superio.c (Revision 0)
@@ -0,0 +1,85 @@
+/*
+ * Copyright (C) 2006 Uwe Hermann <uwe at hermann-uwe.de>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <uart8250.h>
+#include <pc80/keyboard.h>
+#include "chip.h"
+#include "it8673f.h"
+
+static void init(device_t dev)
+{
+ struct superio_ITE_it8673f_config *conf;
+ struct resource *res0, *res1;
+
+ if (!dev->enabled) {
+ return;
+ }
+
+ conf = dev->chip_info;
+
+ switch (dev->path.u.pnp.device) {
+ case IT8673F_FDC: /* TODO. */
+ break;
+ case IT8673F_SP1:
+ res0 = find_resource(dev, PNP_IDX_IO0);
+ init_uart8250(res0->base, &conf->com1);
+ break;
+ case IT8673F_SP2:
+ res0 = find_resource(dev, PNP_IDX_IO0);
+ init_uart8250(res0->base, &conf->com2);
+ break;
+ case IT8673F_PP: /* TODO. */
+ break;
+ case IT8673F_FAN: /* TODO. */
+ break;
+ case IT8673F_KBCK:
+ res0 = find_resource(dev, PNP_IDX_IO0);
+ res1 = find_resource(dev, PNP_IDX_IO1);
+ init_pc_keyboard(res0->base, res1->base, &conf->keyboard);
+ break;
+ case IT8673F_KBCM: /* TODO. */
+ break;
+ }
+}
+
+static struct device_operations ops = {
+ .read_resources = pnp_read_resources,
+ .set_resources = pnp_set_resources,
+ .enable_resources = pnp_enable_resources,
+ .enable = pnp_enable,
+ .init = init,
+};
+
+/* TODO: FDC, PP, FAN, KBCM. */
+static struct pnp_info pnp_dev_info[] = {
+ { &ops, IT8673F_SP1, PNP_IO0 | PNP_IRQ0, { 0x7f8, 0 }, },
+ { &ops, IT8673F_SP2, PNP_IO0 | PNP_IRQ0 | PNP_DRQ0 | PNP_DRQ1, { 0x7f8, 0 }, },
+ { &ops, IT8673F_KBCK, PNP_IO0 | PNP_IO1 | PNP_IRQ0, { 0x7f8, 0 }, { 0x7f8, 0x4}, },
+};
+
+static void enable_dev(struct device *dev)
+{
+ pnp_enable_devices(dev, &pnp_ops,
+ sizeof(pnp_dev_info)/sizeof(pnp_dev_info[0]), pnp_dev_info);
+}
+
+struct chip_operations superio_ITE_it8673f_ops = {
+ CHIP_NAME("ITE it8673f")
+ .enable_dev = enable_dev,
+};
+
Index: src/superio/ite/it8673f/chip.h
===================================================================
--- src/superio/ite/it8673f/chip.h (Revision 0)
+++ src/superio/ite/it8673f/chip.h (Revision 0)
@@ -0,0 +1,33 @@
+/*
+ * Copyright (C) 2006 Uwe Hermann <uwe at hermann-uwe.de>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef _SUPERIO_ITE_IT8673F
+#define _SUPERIO_ITE_IT8673F
+
+#include <pc80/keyboard.h>
+#include <uart8250.h>
+
+extern struct chip_operations superio_ITE_it8673f_ops;
+
+struct superio_ITE_it8673f_config {
+ struct uart8250 com1, com2;
+ struct pc_keyboard keyboard;
+};
+
+#endif /* _SUPERIO_ITE_IT8673F */
+
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