Revert most of commit 6be96ac1d5e4d913e1f48299db083ada5321803b2,
originally from Lennert Buijtenheck (Marvell) and Saeed Bishara (Marvell),
since that commit causes sata_mv to oops at startup on SOC "Kirkwood".
The SOC variants do not have the hpriv->irq_{cause,mask}_ofs registers,
so don't try to write to them!
This patch should also be considered for -stable.
Reported-by: Maxime Bizon <mbizon@xxxxxxxxxx>
Signed-off-by: Mark Lord <mlord@xxxxxxxxx>
---
Note: I am mostly in the dark about the sata_mv SOC stuff,
since I have incomplete documentation and no hardware to test with.
--- old/drivers/ata/sata_mv.c 2009-04-06 11:18:01.000000000 -0400
+++ new/drivers/ata/sata_mv.c 2009-04-06 11:59:57.000000000 -0400
@@ -3734,11 +3734,13 @@
writelfl(0, hc_mmio + HC_IRQ_CAUSE_OFS);
}
- /* Clear any currently outstanding host interrupt conditions */
- writelfl(0, mmio + hpriv->irq_cause_ofs);
+ if (!IS_SOC(hpriv)) {
+ /* Clear any currently outstanding host interrupt conditions */
+ writelfl(0, mmio + hpriv->irq_cause_ofs);
- /* and unmask interrupt generation for host regs */
- writelfl(hpriv->unmask_all_irqs, mmio + hpriv->irq_mask_ofs);
+ /* and unmask interrupt generation for host regs */
+ writelfl(hpriv->unmask_all_irqs, mmio + hpriv->irq_mask_ofs);
+ }
/*
* enable only global host interrupts for now.
--
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