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board/ti/am335x: add support for BeagleBone Green

PATCH In review Robert Nelson 2 participants 3 messages Nov 11, 2015 – Nov 18, 2015

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Robert Nelson

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PATCH 1/1 board/ti/am335x: add support for BeagleBone Green

SeeedStudio BeagleBone Green (BBG) is clone of the BeagleBone Black (BBB) minus the HDMI port and addition of two Grove connectors (i2c2 and usart2).

This board can be identified by the 1A value after A335BNLT (BBB) in the at24 eeprom:
1A: [aa 55 33 ee 41 33 33 35 42 4e 4c 54 1a 00 00 00 |.U3.A335BNLT....|]

http://beagleboard.org/green
http://www.seeedstudio.com/wiki/Beaglebone_green

In Mainline Kernel as of:
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=79a4e64c679d8a0b1037da174e4aea578c80c4e6

Patch tested on BeagleBone Black (rev C) and BeagleBone Green (production model)

Signed-off-by Robert Nelson <[email protected]>
CC Tom Rini <[email protected]>
CC Jason Kridner <[email protected]>
---
 board/ti/am335x/board.c      | 12 +++++++++---
 include/configs/am335x_evm.h |  7 ++++++-
 2 files changed, 15 insertions(+), 4 deletions(-)
board/ti/am335x/board.c +9 -3
index f0cb1e2..f56d17e 100644
@@ -507,9 +507,15 @@ int board_late_init(void)
 	safe_string[sizeof(header.name)] = 0;
 	setenv("board_name", safe_string);
 
-	strncpy(safe_string, (char *)header.version, sizeof(header.version));
-	safe_string[sizeof(header.version)] = 0;
-	setenv("board_rev", safe_string);
+	/* BeagleBone Green eeprom, board_rev: 0x1a 0x00 0x00 0x00 */
+	if ( (header.version[0] == 0x1a) && (header.version[1] == 0x00) &&
+	     (header.version[2] == 0x00) && (header.version[3] == 0x00) ) {
+		setenv("board_rev", "BBG1");
+	} else {
+		strncpy(safe_string, (char *)header.version, sizeof(header.version));
+		safe_string[sizeof(header.version)] = 0;
+		setenv("board_rev", safe_string);
+	}
 #endif
 
 	return 0;
include/configs/am335x_evm.h +6 -1
index d58816d..ed3fd34 100644
@@ -186,7 +186,12 @@
 		"if test $board_name = A335BONE; then " \
 			"setenv fdtfile am335x-bone.dtb; fi; " \
 		"if test $board_name = A335BNLT; then " \
-			"setenv fdtfile am335x-boneblack.dtb; fi; " \
+			"if test $board_rev = BBG1; then " \
+				"setenv fdtfile am335x-bonegreen.dtb; " \
+			"else " \
+				"setenv fdtfile am335x-boneblack.dtb; " \
+			"fi; " \
+		"fi; " \
 		"if test $board_name = A33515BB; then " \
 			"setenv fdtfile am335x-evm.dtb; fi; " \
 		"if test $board_name = A335X_SK; then " \
Signature · 1 line
2.6.2
#1 lore raw

PATCH 1/1 board/ti/am335x: add support for BeagleBone Green

Quoted 9 lines · Robert Nelson

SeeedStudio BeagleBone Green (BBG) is clone of the BeagleBone Black (BBB) minus the HDMI port and addition of two Grove connectors (i2c2 and usart2).

This board can be identified by the 1A value after A335BNLT (BBB) in the at24 eeprom:
1A: [aa 55 33 ee 41 33 33 35 42 4e 4c 54 1a 00 00 00 |.U3.A335BNLT....|]

http://beagleboard.org/green
http://www.seeedstudio.com/wiki/Beaglebone_green

Quoted 8 lines

In Mainline Kernel as of:
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=79a4e64c679d8a0b1037da174e4aea578c80c4e6

Patch tested on BeagleBone Black (rev C) and BeagleBone Green (production model)

Signed-off-by Robert Nelson <[email protected]>
CC Tom Rini <[email protected]>
CC Jason Kridner <[email protected]>
Reviewed-by Tom Rini <[email protected]>
Signature · 8 lines
Tom
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#2 lore raw
In reply to Robert Nelson
Quoted 12 lines · robertcnelson at gmail.com

SeeedStudio BeagleBone Green (BBG) is clone of the BeagleBone Black (BBB) minus the HDMI port and addition of two Grove connectors (i2c2 and usart2).

This board can be identified by the 1A value after A335BNLT (BBB) in the at24 eeprom:
1A: [aa 55 33 ee 41 33 33 35 42 4e 4c 54 1a 00 00 00 |.U3.A335BNLT....|]

http://beagleboard.org/green
http://www.seeedstudio.com/wiki/Beaglebone_green

In Mainline Kernel as of:
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=79a4e64c679d8a0b1037da174e4aea578c80c4e6

Quoted 6 lines

Patch tested on BeagleBone Black (rev C) and BeagleBone Green (production model)

Signed-off-by Robert Nelson <[email protected]>
CC Tom Rini <[email protected]>
CC Jason Kridner <[email protected]>
Reviewed-by Tom Rini <[email protected]>

Applied to u-boot/master, thanks!

Signature · 8 lines
Tom
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