PPC: MPIC: Remove read functionality for WO registers
The IPI dispatch registers are write only according to every MPIC spec I have found. So instead of pretending you could read back something from them, better not handle them at all. Reported-by: Elie Richa <richa@adacore.com> Signed-off-by: Alexander Graf <agraf@suse.de>
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@ -952,13 +952,6 @@ static uint32_t openpic_cpu_read_internal(void *opaque, target_phys_addr_t addr,
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case 0xB0: /* PEOI */
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retval = 0;
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break;
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#if MAX_IPI > 0
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case 0x40: /* IDE */
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case 0x50:
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idx = (addr - 0x40) >> 4;
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retval = read_IRQreg(opp, opp->irq_ipi0 + idx, IRQ_IDE);
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break;
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#endif
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default:
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break;
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}
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