mb/lenovo/{t60,r60}: Add ThinkPad R60 support as variant board

- This port should be Reclaim Your Freedom compliant
  (not certified yet).
- Untested on boards with external Radeon graphics adapter.
- Some columns on the left-most side of display are completely
  black on 1400x1050 IPS display[1]. Display works fine on Linux.
  I don't know why it appears like that. So far it has been observed
  only with native graphics initialization.
- Only GRUB2 and SeaBIOS payloads tested for now.
- 2504 docking station USB doesn't work under Linux.
  Can detect pendrive in GRUB2 payload.
- Sometimes it takes 20s of "pretending it's powered off" to run
  coreboot code. Issue is payload agnostic.
  Probably caused by missing one capacitor on my unit.

[1] https://imgur.com/a/0wpMGsm

Change-Id: Ibd9208a5eafd228f8eedbc8fb4f4eb9ed1932a14
Signed-off-by: Maciej Matuszczyk <maccraft123mc@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/35864
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>

Documentation/mainboard/index.md

@@ -65,6 +65,7 @@ The boards in this section are not real mainboards, but emulators.
 
 - [Mainboard codenames](lenovo/codenames.md)
 - [Hardware Maintenance Manual of ThinkPads](lenovo/thinkpad_hmm.md)
+- [R60](lenovo/r60.md)
 - [T4xx common](lenovo/t4xx_series.md)
 - [X2xx common](lenovo/x2xx_series.md)
 

Documentation/mainboard/lenovo/r60.md

@@ -0,0 +1,44 @@
+# Lenovo Thinkpad R60
+
+Untested on boards with external Radeon graphics adapter. If you have such
+board, proceed at your own risk and document if it does work.
+
+## Flashing instructions
+
+### External flashing
+
+The flash IC is located at the bottom center of the mainboard. Access to
+the flash chip is blocked by the magnesium frame, so you need to disassemble
+the entire laptop and remove the mainboard. The flash chip is referenced as U49 in
+the schematics and in the boardview.
+
+![](r60_chip.jpg)
+
+To disassemble the laptop, follow the [Hardware Maintenance Manual](https://thinkpads.com/support/hmm/hmm_pdf/42x3749_02.pdf).
+
+### Internal flashing on Vendor BIOS
+
+This [method](https://gist.github.com/ArthurHeymans/c5ef494ada01af372735f237f6c6adbe) describes a way to install coreboot with vendor firmware still
+installed on the Lenovo Thinkpad X60. It is reported to also work in Thinkpad
+R60, with the only difference being the board target you build coreboot for.
+
+### Flashing on coreboot
+
+Default configuration of coreboot doesn't feature any flash restrictions
+like the vendor firmware, therefore flashrom is able to flash any rom without problems.
+
+## Things tested and working in Linux 5.3:
+
+- Intel WiFi card
+- Suspend and resume
+- Native graphics initialization. Both legacy VGA and linear framebuffer work
+- GRUB2 2.04 and SeaBIOS 1.12.1 payloads
+- Reflashing with flashrom (use flashrom-git as of 17.09.2019)
+- 2G+1G memory configuration working
+- 2504 dock USB ports if not hotplugged
+
+## Things tested and not working:
+
+- 2504 dock hotplugging
+- Black bar at the left side of the screen. Doesn't appear in Linux. See picture at top
+- Sometimes it takes several second to run coreboot. Just wait for it

src/mainboard/lenovo/t60/Kconfig

@@ -1,4 +1,4 @@
-if BOARD_LENOVO_T60 || BOARD_LENOVO_Z61T
+if BOARD_LENOVO_T60 || BOARD_LENOVO_Z61T || BOARD_LENOVO_R60
 
 config BOARD_SPECIFIC_OPTIONS
 	def_bool y
@@ -30,7 +30,7 @@ config MAINBOARD_DIR
 
 config VARIANT_DIR
 	string
-	default "t60" if BOARD_LENOVO_T60
+	default "t60" if BOARD_LENOVO_T60 || BOARD_LENOVO_R60
 	default "z61t" if BOARD_LENOVO_Z61T
 
 config OVERRIDE_DEVICETREE
@@ -41,9 +41,10 @@ config MAINBOARD_PART_NUMBER
 	string
 	default "ThinkPad T60" if BOARD_LENOVO_T60
 	default "ThinkPad Z61t" if BOARD_LENOVO_Z61T
+	default "ThinkPad R60" if BOARD_LENOVO_R60
 
 config MAX_CPUS
 	int
 	default 2
 
-endif # BOARD_LENOVO_T60 || BOARD_LENOVO_Z61T
+endif # BOARD_LENOVO_T60 || BOARD_LENOVO_Z61T || BOARD_LENOVO_R60

src/mainboard/lenovo/t60/Kconfig.name

@@ -3,3 +3,6 @@ config BOARD_LENOVO_T60
 
 config BOARD_LENOVO_Z61T
 	bool "ThinkPad Z61t"
+
+config BOARD_LENOVO_R60
+	bool "ThinkPad R60"

src/mainboard/lenovo/t60/board_info.txt

@@ -1,5 +1,5 @@
 Vendor name: Lenovo
-Board name: ThinkPad T60/T60p/Z61t baseboard
+Board name: ThinkPad R60/T60/T60p/Z61t baseboard
 Category: laptop
 ROM package: SOIC-8
 ROM protocol: SPI

src/mainboard/lenovo/t60/gpio.c

@@ -2,6 +2,7 @@
  * This file is part of the coreboot project.
  *
  * Copyright (C) 2016 Arthur Heymans <arthur@aheymans.xyz>
+ * Copyright (C) 2019 Maciej Matuszczyk
  *
  * 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
@@ -16,21 +17,24 @@
 #include <southbridge/intel/common/gpio.h>
 
 static const struct pch_gpio_set1 pch_gpio_set1_mode = {
-	.gpio1 = GPIO_MODE_GPIO,
+	.gpio1 = GPIO_MODE_GPIO, /* DASP_BAY# */
 	.gpio6 = GPIO_MODE_GPIO, /* LEGACYIO# */
 	.gpio7 = GPIO_MODE_GPIO, /* BDC_PRESENCE# */
 	.gpio8 = GPIO_MODE_GPIO, /* H8_WAKE# */
-	.gpio9 = GPIO_MODE_GPIO,
+	.gpio9 = GPIO_MODE_GPIO, /* Pulled Up */
 	.gpio10 = GPIO_MODE_GPIO, /* MDI_DETECT */
 	.gpio12 = GPIO_MODE_GPIO, /* H8SCI# */
-	.gpio13 = GPIO_MODE_GPIO,
+	.gpio13 = GPIO_MODE_GPIO, /* Pulled Up */
 	.gpio14 = GPIO_MODE_GPIO, /* CPUSB# */
 	.gpio15 = GPIO_MODE_GPIO, /* CPPE# */
-	.gpio19 = GPIO_MODE_GPIO,
+	.gpio19 = GPIO_MODE_GPIO, /* GBE_RS# */
-	.gpio22 = GPIO_MODE_GPIO,
+#if CONFIG(BOARD_LENOVO_R60)
-	.gpio24 = GPIO_MODE_GPIO,
+	.gpio21 = GPIO_MODE_GPIO, /* LCD_PRESENCE# */
+#endif
+	.gpio22 = GPIO_MODE_GPIO, /* FWH_WP# */
+	.gpio24 = GPIO_MODE_GPIO, /* Pulled Down */
 	.gpio25 = GPIO_MODE_GPIO, /* MDC_KILL# */
-	.gpio26 = GPIO_MODE_GPIO,
+	.gpio26 = GPIO_MODE_GPIO, /* Pulled Down */
 	.gpio27 = GPIO_MODE_GPIO, /* EXC_PWR_CTRL */
 	.gpio28 = GPIO_MODE_GPIO, /* EXC_AUX_CTRL */
 };
@@ -47,7 +51,12 @@ static const struct pch_gpio_set1 pch_gpio_set1_direction = {
 	.gpio14 = GPIO_DIR_INPUT,
 	.gpio15 = GPIO_DIR_INPUT,
 	.gpio19 = GPIO_DIR_OUTPUT,
+#if CONFIG(BOARD_LENOVO_R60)
+	.gpio21 = GPIO_DIR_INPUT,
+	.gpio22 = GPIO_DIR_OUTPUT,
+#else
 	.gpio22 = GPIO_DIR_INPUT,
+#endif
 	.gpio24 = GPIO_DIR_OUTPUT,
 	.gpio25 = GPIO_DIR_OUTPUT,
 	.gpio26 = GPIO_DIR_OUTPUT,
@@ -77,14 +86,20 @@ static const struct pch_gpio_set1 pch_gpio_set1_blink = {
 };
 
 static const struct pch_gpio_set2 pch_gpio_set2_mode = {
+#if CONFIG(BOARD_LENOVO_R60)
+	.gpio34 = GPIO_MODE_GPIO, /* SMB_3B_EN */
+#endif
 	.gpio36 = GPIO_MODE_GPIO, /* PLANARID0 */
 	.gpio37 = GPIO_MODE_GPIO, /* PLANARID1 */
 	.gpio38 = GPIO_MODE_GPIO, /* PLANARID2 */
 	.gpio39 = GPIO_MODE_GPIO, /* PLANARID3 */
-	.gpio48 = GPIO_MODE_GPIO,
+	.gpio48 = GPIO_MODE_GPIO, /* FWH_TBL# */
 };
 
 static const struct pch_gpio_set2 pch_gpio_set2_direction = {
+#if CONFIG(BOARD_LENOVO_R60)
+	.gpio34 = GPIO_DIR_INPUT,
+#endif
 	.gpio36 = GPIO_DIR_INPUT,
 	.gpio37 = GPIO_DIR_INPUT,
 	.gpio38 = GPIO_DIR_INPUT,

src/mainboard/lenovo/t60/variants/t60/board_info.txt

@@ -1,5 +1,5 @@
 Vendor name: Lenovo
-Board name: ThinkPad T60/T60p
+Board name: ThinkPad R60/T60/T60p
 Category: laptop
 ROM package: SOIC-8
 ROM protocol: SPI