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| author | Lennert Buytenhek <buytenh@wantstofly.org> | 2008-08-09 15:17:27 +0200 |
|---|---|---|
| committer | Lennert Buytenhek <buytenh@marvell.com> | 2008-08-09 15:17:27 +0200 |
| commit | ce72e36ed1a57ba086270039c7d6fac9bf1c5fbc (patch) | |
| tree | 3fae8df5f9f582f46c8d25f1b6a98fadb27f76d8 /arch/arm/mach-orion5x/common.c | |
| parent | 6f088f1d215be5250582b974f83f0e3aa6ad3a28 (diff) | |
| download | kernel_samsung_smdk4412-ce72e36ed1a57ba086270039c7d6fac9bf1c5fbc.zip kernel_samsung_smdk4412-ce72e36ed1a57ba086270039c7d6fac9bf1c5fbc.tar.gz kernel_samsung_smdk4412-ce72e36ed1a57ba086270039c7d6fac9bf1c5fbc.tar.bz2 | |
[ARM] Orion: support D0 5281 silicon
On D0 5281 SoCs, we need to disable the wait-for-interrupt
instruction due to an erratum.
Signed-off-by: Lennert Buytenhek <buytenh@marvell.com>
Signed-off-by: Nicolas Pitre <nico@marvell.com>
Acked-by: Martin Michlmayr <tbm@cyrius.com>
Diffstat (limited to 'arch/arm/mach-orion5x/common.c')
| -rw-r--r-- | arch/arm/mach-orion5x/common.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/arch/arm/mach-orion5x/common.c b/arch/arm/mach-orion5x/common.c index b44f26d..8f2146b 100644 --- a/arch/arm/mach-orion5x/common.c +++ b/arch/arm/mach-orion5x/common.c @@ -382,6 +382,8 @@ static void __init orion5x_id(u32 *dev, u32 *rev, char **dev_name) *dev_name = "MV88F5281-D2"; } else if (*rev == MV88F5281_REV_D1) { *dev_name = "MV88F5281-D1"; + } else if (*rev == MV88F5281_REV_D0) { + *dev_name = "MV88F5281-D0"; } else { *dev_name = "MV88F5281-Rev-Unsupported"; } @@ -416,6 +418,15 @@ void __init orion5x_init(void) * Setup Orion address map */ orion5x_setup_cpu_mbus_bridge(); + + /* + * Don't issue "Wait for Interrupt" instruction if we are + * running on D0 5281 silicon. + */ + if (dev == MV88F5281_DEV_ID && rev == MV88F5281_REV_D0) { + printk(KERN_INFO "Orion: Applying 5281 D0 WFI workaround.\n"); + disable_hlt(); + } } /* |