diff options
Diffstat (limited to 'arch/arm/boot/dts/armada-xp-db.dts')
| -rw-r--r-- | arch/arm/boot/dts/armada-xp-db.dts | 19 |
1 files changed, 12 insertions, 7 deletions
diff --git a/arch/arm/boot/dts/armada-xp-db.dts b/arch/arm/boot/dts/armada-xp-db.dts index bcf6d79a57ec..42ddb2864365 100644 --- a/arch/arm/boot/dts/armada-xp-db.dts +++ b/arch/arm/boot/dts/armada-xp-db.dts @@ -2,7 +2,7 @@ * Device Tree file for Marvell Armada XP evaluation board * (DB-78460-BP) * - * Copyright (C) 2012 Marvell + * Copyright (C) 2012-2014 Marvell * * Lior Amsalem <alior@marvell.com> * Gregory CLEMENT <gregory.clement@free-electrons.com> @@ -11,6 +11,15 @@ * This file is licensed under the terms of the GNU General Public * License version 2. This program is licensed "as is" without any * warranty of any kind, whether express or implied. + * + * Note: this Device Tree assumes that the bootloader has remapped the + * internal registers to 0xf1000000 (instead of the default + * 0xd0000000). The 0xf1000000 is the default used by the recent, + * DT-capable, U-Boot bootloaders provided by Marvell. Some earlier + * boards were delivered with an older version of the bootloader that + * left internal registers mapped at 0xd0000000. If you are in this + * situation, you should either update your bootloader (preferred + * solution) or the below Device Tree should be adjusted. */ /dts-v1/; @@ -30,7 +39,7 @@ }; soc { - ranges = <MBUS_ID(0xf0, 0x01) 0 0 0xd0000000 0x100000 + ranges = <MBUS_ID(0xf0, 0x01) 0 0 0xf1000000 0x100000 MBUS_ID(0x01, 0x1d) 0 0 0xfff00000 0x100000 MBUS_ID(0x01, 0x2f) 0 0 0xf0000000 0x1000000>; @@ -40,7 +49,7 @@ /* Device Bus parameters are required */ /* Read parameters */ - devbus,bus-width = <8>; + devbus,bus-width = <16>; devbus,turn-off-ps = <60000>; devbus,badr-skew-ps = <0>; devbus,acc-first-ps = <124000>; @@ -97,19 +106,15 @@ internal-regs { serial@12000 { - clock-frequency = <250000000>; status = "okay"; }; serial@12100 { - clock-frequency = <250000000>; status = "okay"; }; serial@12200 { - clock-frequency = <250000000>; status = "okay"; }; serial@12300 { - clock-frequency = <250000000>; status = "okay"; }; |