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Blackfin: debug-mmrs: disable PERIPHERAL_MAP for IMDMA channels
The documentation for the IMDMA channels appears to be incorrect. These DMA blocks don't actually have PERIPHERAL_MAP MMRs for us to access. Attempts to do so lead to system mmr hardware errors. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
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1 changed files with 2 additions and 1 deletions
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@ -223,7 +223,8 @@ bfin_debug_mmrs_dma(struct dentry *parent, unsigned long base, int num, char mdm
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__DMA(CURR_DESC_PTR, curr_desc_ptr);
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__DMA(CURR_DESC_PTR, curr_desc_ptr);
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__DMA(CURR_ADDR, curr_addr);
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__DMA(CURR_ADDR, curr_addr);
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__DMA(IRQ_STATUS, irq_status);
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__DMA(IRQ_STATUS, irq_status);
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__DMA(PERIPHERAL_MAP, peripheral_map);
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if (strcmp(pfx, "IMDMA") != 0)
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__DMA(PERIPHERAL_MAP, peripheral_map);
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__DMA(CURR_X_COUNT, curr_x_count);
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__DMA(CURR_X_COUNT, curr_x_count);
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__DMA(CURR_Y_COUNT, curr_y_count);
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__DMA(CURR_Y_COUNT, curr_y_count);
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}
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}
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