it8661f support from Uwe Hermann

git-svn-id: svn://svn.coreboot.org/coreboot/trunk@2393 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1

5 files changed, 241 insertions, 0 deletions

diff --git a/src/superio/ite/it8661f/Config.lb b/src/superio/ite/it8661f/Config.lb
new file mode 100644
index 0000000000..f62a567d61
--- /dev/null
+++ b/src/superio/ite/it8661f/Config.lb
@@ -0,0 +1,2 @@
+config chip.h
+object superio.o
diff --git a/src/superio/ite/it8661f/chip.h b/src/superio/ite/it8661f/chip.h
new file mode 100644
index 0000000000..e3ecd70ac2
--- /dev/null
+++ b/src/superio/ite/it8661f/chip.h
@@ -0,0 +1,35 @@
+/*
+ * Copyright (C) 2006 Uwe Hermann <uwe@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_IT8661F
+#define _SUPERIO_ITE_IT8661F
+
+/* This chip doesn't seem to have keyboard and mouse support. */
+
+/* #include <pc80/keyboard.h> */
+#include <uart8250.h>
+
+extern struct chip_operations superio_ITE_it8661f_ops;
+
+struct superio_ITE_it8661f_config {
+	struct uart8250 com1, com2;
+	/* struct pc_keyboard keyboard; */
+};
+
+#endif /* _SUPERIO_ITE_IT8661F */
+
diff --git a/src/superio/ite/it8661f/it8661f.h b/src/superio/ite/it8661f/it8661f.h
new file mode 100644
index 0000000000..18b424001f
--- /dev/null
+++ b/src/superio/ite/it8661f/it8661f.h
@@ -0,0 +1,30 @@
+/*
+ * Copyright (C) 2006 Uwe Hermann <uwe@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
+ */
+
+/* Datasheet: http://www.ite.com.tw/product_info/PC/Brief-IT8661_2.asp */
+/* Status: untested on real hardware, but it compiles. */
+
+/* This chip doesn't seem to have keyboard and mouse support. */
+
+#define IT8661F_FDC  0x00 /* Floppy */
+#define IT8661F_SP1  0x01 /* Com1 */
+#define IT8661F_SP2  0x02 /* Com2 */
+#define IT8661F_PP   0x03 /* Parallel port */
+#define IT8661F_IR   0x04 /* IR */
+#define IT8661F_GPIO 0x05 /* GPIO & Alternate Function Configuration */
+
diff --git a/src/superio/ite/it8661f/it8661f_early_serial.c b/src/superio/ite/it8661f/it8661f_early_serial.c
new file mode 100644
index 0000000000..526ec8266a
--- /dev/null
+++ b/src/superio/ite/it8661f/it8661f_early_serial.c
@@ -0,0 +1,95 @@
+/*
+ * Copyright (C) 2006 Uwe Hermann <uwe@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 "it8661f.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 IT8661F_CONFIG_REG_CC      0x02   /* Configure Control (write-only). */
+#define IT8661F_CONFIG_REG_LDN     0x07   /* Logical Device Number. */
+#define IT8661F_CONFIG_REG_LDE     0x23   /* PnP Logical Device Enable. */
+#define IT8661F_CONFIG_REG_SWSUSP  0x24   /* Software Suspend + Clock Select. */
+
+#define IT8661F_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 IT8661F_CONFIG_REG_LDN (index 0x07) must be set to the
+ * LDN the register belongs to, before you can access the register. */
+static void it8661f_sio_write(uint8_t ldn, uint8_t index, uint8_t value)
+{
+	outb(IT8661F_CONFIG_REG_LDN, SIO_BASE);
+	outb(ldn, SIO_DATA);
+	outb(index, SIO_BASE);
+	outb(value, SIO_DATA);
+}
+
+/* Enable the peripheral devices on the IT8661F Super IO chip. */
+static void it8661f_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, IT8661F_CONFIGURATION_PORT);
+	outb(0x80, IT8661F_CONFIGURATION_PORT);
+	outb(0x55, IT8661F_CONFIGURATION_PORT);
+	outb(0x55, IT8661F_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. */
+
+	/* Allow all devices to be enabled. Bits: FDC (0), Com1 (1), Com2 (2),
+	   PP (3), IR (4). Bits 5-7 are reserved. */
+	it8661f_sio_write(0x00, IT8661F_CONFIG_REG_LDE, 0x1f);
+
+	/* Enable all devices. */
+	it8661f_sio_write(IT8661F_FDC,  0x30, 0x1); /* Floppy */
+	it8661f_sio_write(IT8661F_SP1,  0x30, 0x1); /* Serial port 1 */
+	it8661f_sio_write(IT8661F_SP2,  0x30, 0x1); /* Serial port 2 */
+	it8661f_sio_write(IT8661F_PP,   0x30, 0x1); /* Parallel port */
+	it8661f_sio_write(IT8661F_IR,   0x30, 0x1); /* IR */
+
+	/* Select 24MHz CLKIN (clear bit 1) and clear software suspend mode
+           (clear bit 0). */
+	it8661f_sio_write(0x00, IT8661F_CONFIG_REG_SWSUSP, 0x00);
+
+	/* (3) Exit the configuration state (MB PnP mode). */
+	it8661f_sio_write(0x00, IT8661F_CONFIG_REG_CC, 0x02); 
+}
+
diff --git a/src/superio/ite/it8661f/superio.c b/src/superio/ite/it8661f/superio.c
new file mode 100644
index 0000000000..8ba3deb84b
--- /dev/null
+++ b/src/superio/ite/it8661f/superio.c
@@ -0,0 +1,79 @@
+/*
+ * Copyright (C) 2006 Uwe Hermann <uwe@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
+ */
+
+/* This chip doesn't seem to have keyboard and mouse support. */
+
+#include <uart8250.h>
+/* #include <pc80/keyboard.h> */
+#include "chip.h"
+#include "it8661f.h"
+
+static void init(device_t dev)
+{
+	struct superio_ITE_it8661f_config *conf;
+	struct resource *res0, *res1;
+
+	if (!dev->enabled) {
+		return;
+	}
+
+	conf = dev->chip_info;
+
+	switch (dev->path.u.pnp.device) {
+	case IT8661F_FDC: /* TODO. */
+		break;
+	case IT8661F_SP1:
+		res0 = find_resource(dev, PNP_IDX_IO0);
+		init_uart8250(res0->base, &conf->com1);
+		break;
+	case IT8661F_SP2:
+		res0 = find_resource(dev, PNP_IDX_IO0);
+		init_uart8250(res0->base, &conf->com2);
+		break;
+	case IT8661F_PP: /* TODO. */
+		break;
+	case IT8661F_IR: /* 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, IR, GPIO. */
+static struct pnp_info pnp_dev_info[] = {
+ { &ops, IT8661F_SP1,  PNP_IO0 | PNP_IRQ0, { 0x7f8, 0 }, },
+ { &ops, IT8661F_SP2,  PNP_IO0 | PNP_IRQ0 | PNP_DRQ0 | PNP_DRQ1, { 0x7f8, 0 }, },
+};
+
+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_it8661f_ops = {
+	CHIP_NAME("ITE it8661f")
+	.enable_dev = enable_dev,
+};
+