nb/intel/sandybridge: Set up console in bootblock

Change-Id: Ia041b63201b2a4a2fe6ab11e3497c460f88061d1
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/36784
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Nico Huber <nico.h@gmx.de>

1 files changed, 251 insertions, 0 deletions

diff --git a/src/mainboard/samsung/stumpy/early_init.c b/src/mainboard/samsung/stumpy/early_init.c
new file mode 100644
index 0000000000..03cb8d70a3
--- /dev/null
+++ b/src/mainboard/samsung/stumpy/early_init.c
@@ -0,0 +1,251 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2007-2010 coresystems GmbH
+ * Copyright (C) 2011 The ChromiumOS Authors.  All rights reserved.
+ *
+ * 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; version 2 of the License.
+ *
+ * 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.
+ */
+
+#include <bootblock_common.h>
+#include <stdint.h>
+#include <device/pci_ops.h>
+#include <device/pci_def.h>
+#include <cpu/x86/lapic.h>
+#include <pc80/mc146818rtc.h>
+#include <console/console.h>
+#include <bootmode.h>
+#include <superio/ite/common/ite.h>
+#include <superio/ite/it8772f/it8772f.h>
+#include <northbridge/intel/sandybridge/sandybridge.h>
+#include <northbridge/intel/sandybridge/raminit.h>
+#include <northbridge/intel/sandybridge/raminit_native.h>
+#include <southbridge/intel/bd82x6x/pch.h>
+#include <southbridge/intel/common/gpio.h>
+#if CONFIG(DRIVERS_UART_8250IO)
+#include <superio/smsc/lpc47n207/lpc47n207.h>
+#endif
+
+/* Stumpy USB Reset Disable defined in cmos.layout */
+#if CONFIG(USE_OPTION_TABLE)
+#include "option_table.h"
+#define CMOS_USB_RESET_DISABLE  (CMOS_VSTART_stumpy_usb_reset_disable >> 3)
+#else
+#define CMOS_USB_RESET_DISABLE  (400 >> 3)
+#endif
+#define USB_RESET_DISABLE_MAGIC (0xdd) /* Disable if set to this */
+
+#define SUPERIO_DEV PNP_DEV(0x2e, 0)
+#define SERIAL_DEV PNP_DEV(0x2e, IT8772F_SP1)
+#define GPIO_DEV PNP_DEV(0x2e, IT8772F_GPIO)
+
+void mainboard_pch_lpc_setup(void)
+{
+	/* Set COM1/COM2 decode range */
+	pci_write_config16(PCH_LPC_DEV, LPC_IO_DEC, 0x0010);
+
+#if CONFIG(DRIVERS_UART_8250IO)
+	/* Enable SuperIO + PS/2 Keyboard/Mouse + COM1 + lpc47n207 config*/
+	pci_write_config16(PCH_LPC_DEV, LPC_EN, CNF1_LPC_EN | KBC_LPC_EN |\
+			   CNF2_LPC_EN | COMA_LPC_EN);
+
+	try_enabling_LPC47N207_uart();
+#else
+	/* Enable SuperIO + PS/2 Keyboard/Mouse */
+	pci_write_config16(PCH_LPC_DEV, LPC_EN, CNF1_LPC_EN | KBC_LPC_EN);
+#endif
+}
+
+void mainboard_late_rcba_config(void)
+{
+	/*
+	 *             GFX    INTA -> PIRQA (MSI)
+	 * D28IP_P1IP  WLAN   INTA -> PIRQB
+	 * D28IP_P4IP  ETH0   INTB -> PIRQC
+	 * D29IP_E1P   EHCI1  INTA -> PIRQD
+	 * D26IP_E2P   EHCI2  INTA -> PIRQE
+	 * D31IP_SIP   SATA   INTA -> PIRQF (MSI)
+	 * D31IP_SMIP  SMBUS  INTB -> PIRQG
+	 * D31IP_TTIP  THRT   INTC -> PIRQH
+	 * D27IP_ZIP   HDA    INTA -> PIRQG (MSI)
+	 */
+
+	/* Device interrupt pin register (board specific) */
+	RCBA32(D31IP) = (INTC << D31IP_TTIP) | (NOINT << D31IP_SIP2) |
+		(INTB << D31IP_SMIP) | (INTA << D31IP_SIP);
+	RCBA32(D30IP) = (NOINT << D30IP_PIP);
+	RCBA32(D29IP) = (INTA << D29IP_E1P);
+	RCBA32(D28IP) = (INTA << D28IP_P1IP) | (INTC << D28IP_P3IP) |
+		(INTB << D28IP_P4IP);
+	RCBA32(D27IP) = (INTA << D27IP_ZIP);
+	RCBA32(D26IP) = (INTA << D26IP_E2P);
+	RCBA32(D25IP) = (NOINT << D25IP_LIP);
+	RCBA32(D22IP) = (NOINT << D22IP_MEI1IP);
+
+	/* Device interrupt route registers */
+	DIR_ROUTE(D31IR, PIRQF, PIRQG, PIRQH, PIRQA);
+	DIR_ROUTE(D29IR, PIRQD, PIRQE, PIRQF, PIRQG);
+	DIR_ROUTE(D28IR, PIRQB, PIRQC, PIRQD, PIRQE);
+	DIR_ROUTE(D27IR, PIRQG, PIRQH, PIRQA, PIRQB);
+	DIR_ROUTE(D26IR, PIRQE, PIRQF, PIRQG, PIRQH);
+	DIR_ROUTE(D25IR, PIRQA, PIRQB, PIRQC, PIRQD);
+	DIR_ROUTE(D22IR, PIRQA, PIRQB, PIRQC, PIRQD);
+
+	/* Enable IOAPIC (generic) */
+	RCBA16(OIC) = 0x0100;
+	/* PCH BWG says to read back the IOAPIC enable register */
+	(void) RCBA16(OIC);
+}
+
+static void setup_sio_gpios(void)
+{
+	/*
+	 * GPIO10 as USBPWRON12#
+	 * GPIO12 as USBPWRON13#
+	 */
+	it8772f_gpio_setup(SUPERIO_DEV, 1, 0x05, 0x05, 0x00, 0x05, 0x05);
+
+	/*
+	 * GPIO22 as wake SCI#
+	 */
+	it8772f_gpio_setup(SUPERIO_DEV, 2, 0x04, 0x04, 0x00, 0x04, 0x04);
+
+	/*
+	 * GPIO32 as EXTSMI#
+	 */
+	it8772f_gpio_setup(SUPERIO_DEV, 3, 0x04, 0x04, 0x00, 0x04, 0x04);
+
+	/*
+	 * GPIO45 as LED_POWER#
+	 */
+	it8772f_gpio_led(GPIO_DEV, 4 /* set */, (0x1 << 5) /* select */,
+		(0x1 << 5) /* polarity */, (0x1 << 5) /* 1 = pullup */,
+		(0x1 << 5) /* output */, (0x1 << 5) /* 1 = Simple IO function */,
+		SIO_GPIO_BLINK_GPIO45, IT8772F_GPIO_BLINK_FREQUENCY_1_HZ);
+
+	/*
+	 * GPIO51 as USBPWRON8#
+	 * GPIO52 as USBPWRON1#
+	 */
+	it8772f_gpio_setup(SUPERIO_DEV, 5, 0x06, 0x06, 0x00, 0x06, 0x06);
+	it8772f_gpio_setup(SUPERIO_DEV, 6, 0x00, 0x00, 0x00, 0x00, 0x00);
+}
+
+void mainboard_fill_pei_data(struct pei_data *pei_data)
+{
+	struct pei_data pei_data_template = {
+		.pei_version = PEI_VERSION,
+		.mchbar = (uintptr_t)DEFAULT_MCHBAR,
+		.dmibar = (uintptr_t)DEFAULT_DMIBAR,
+		.epbar = DEFAULT_EPBAR,
+		.pciexbar = CONFIG_MMCONF_BASE_ADDRESS,
+		.smbusbar = SMBUS_IO_BASE,
+		.wdbbar = 0x4000000,
+		.wdbsize = 0x1000,
+		.hpet_address = CONFIG_HPET_ADDRESS,
+		.rcba = (uintptr_t)DEFAULT_RCBABASE,
+		.pmbase = DEFAULT_PMBASE,
+		.gpiobase = DEFAULT_GPIOBASE,
+		.thermalbase = 0xfed08000,
+		.system_type = 0, // 0 Mobile, 1 Desktop/Server
+		.tseg_size = CONFIG_SMM_TSEG_SIZE,
+		.spd_addresses = { 0xa0, 0x00,0xa4,0x00 },
+		.ts_addresses = { 0x00, 0x00, 0x00, 0x00 },
+		.ec_present = 0,
+		// 0 = leave channel enabled
+		// 1 = disable dimm 0 on channel
+		// 2 = disable dimm 1 on channel
+		// 3 = disable dimm 0+1 on channel
+		.dimm_channel0_disabled = 2,
+		.dimm_channel1_disabled = 2,
+		.max_ddr3_freq = 1333,
+		.usb_port_config = {
+			{ 1, 0, 0x0080 }, /* P0: Front port  (OC0) */
+			{ 1, 1, 0x0040 }, /* P1: Back port   (OC1) */
+			{ 1, 0, 0x0040 }, /* P2: MINIPCIE1   (no OC) */
+			{ 1, 0, 0x0040 }, /* P3: MMC         (no OC) */
+			{ 1, 2, 0x0080 }, /* P4: Front port  (OC2) */
+			{ 0, 0, 0x0000 }, /* P5: Empty */
+			{ 0, 0, 0x0000 }, /* P6: Empty */
+			{ 0, 0, 0x0000 }, /* P7: Empty */
+			{ 1, 4, 0x0040 }, /* P8: Back port   (OC4) */
+			{ 1, 4, 0x0040 }, /* P9: MINIPCIE3   (no OC) */
+			{ 1, 4, 0x0040 }, /* P10: BLUETOOTH  (no OC) */
+			{ 0, 4, 0x0000 }, /* P11: Empty */
+			{ 1, 6, 0x0040 }, /* P12: Back port  (OC6) */
+			{ 1, 5, 0x0040 }, /* P13: Back port  (OC5) */
+		},
+	};
+	*pei_data = pei_data_template;
+}
+
+void mainboard_get_spd(spd_raw_data *spd, bool id_only)
+{
+	read_spd(&spd[0], 0x50, id_only);
+	read_spd(&spd[2], 0x52, id_only);
+}
+
+const struct southbridge_usb_port mainboard_usb_ports[] = {
+	/* enabled power  usb oc pin  */
+	{ 1, 1, 0 }, /* P0: Front port  (OC0) */
+	{ 1, 0, 1 }, /* P1: Back port   (OC1) */
+	{ 1, 0, -1 }, /* P2: MINIPCIE1   (no OC) */
+	{ 1, 0, -1 }, /* P3: MMC         (no OC) */
+	{ 1, 1, 2 }, /* P4: Front port  (OC2) */
+	{ 0, 0, -1 }, /* P5: Empty */
+	{ 0, 0, -1 }, /* P6: Empty */
+	{ 0, 0, -1 }, /* P7: Empty */
+	{ 1, 0, 4 }, /* P8: Back port   (OC4) */
+	{ 1, 0, -1 }, /* P9: MINIPCIE3   (no OC) */
+	{ 1, 0, -1 }, /* P10: BLUETOOTH  (no OC) */
+	{ 0, 0, -1 }, /* P11: Empty */
+	{ 1, 0, 6 }, /* P12: Back port  (OC6) */
+	{ 1, 0, 5 }, /* P13: Back port  (OC5) */
+};
+
+void mainboard_early_init(int s3resume)
+{
+	init_bootmode_straps();
+}
+
+int mainboard_should_reset_usb(int s3resume)
+{
+	if (s3resume) {
+		/*
+		 * For Stumpy the back USB ports are reset on resume
+		 * so default to resetting the controller to make the
+		 * kernel happy.  There is a CMOS flag to disable the
+		 * controller reset in case the kernel can tolerate
+		 * the device power loss better in the future.
+		 */
+		u8 magic = cmos_read(CMOS_USB_RESET_DISABLE);
+		if (magic == USB_RESET_DISABLE_MAGIC) {
+			printk(BIOS_DEBUG, "USB Controller Reset Disabled\n");
+			return 0;
+		} else {
+			printk(BIOS_DEBUG, "USB Controller Reset Enabled\n");
+			return 1;
+		}
+	} else {
+		/* Ensure USB reset on resume is enabled at boot */
+		cmos_write(0, CMOS_USB_RESET_DISABLE);
+		return 1;
+	}
+}
+
+void bootblock_mainboard_early_init(void)
+{
+	setup_sio_gpios();
+
+	/* Early SuperIO setup */
+	it8772f_ac_resume_southbridge(SUPERIO_DEV);
+	ite_kill_watchdog(GPIO_DEV);
+	ite_enable_serial(SERIAL_DEV, CONFIG_TTYS0_BASE);
+}