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author | Ingo Molnar <mingo@elte.hu> | 2008-06-16 11:27:45 +0200 |
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committer | Ingo Molnar <mingo@elte.hu> | 2008-06-16 11:27:45 +0200 |
commit | d939d2851fd12568e2eabb2916769e8a57ba5c89 (patch) | |
tree | f3158a5ddd41541a61126f9e48de1ce89c632f64 /arch/blackfin/kernel/bfin_dma_5xx.c | |
parent | 9f5314fb4d556d3132c784d0df47352b2830ca53 (diff) | |
parent | 066519068ad2fbe98c7f45552b1f592903a9c8c8 (diff) |
Merge branch 'linus' into x86/irqtip-x86-irq-2008-06-16_09.27_Mon
Diffstat (limited to 'arch/blackfin/kernel/bfin_dma_5xx.c')
-rw-r--r-- | arch/blackfin/kernel/bfin_dma_5xx.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/arch/blackfin/kernel/bfin_dma_5xx.c b/arch/blackfin/kernel/bfin_dma_5xx.c index fd5448d6107c..d54f19085f37 100644 --- a/arch/blackfin/kernel/bfin_dma_5xx.c +++ b/arch/blackfin/kernel/bfin_dma_5xx.c @@ -90,6 +90,17 @@ int request_dma(unsigned int channel, char *device_id) { pr_debug("request_dma() : BEGIN \n"); + +#if defined(CONFIG_BF561) && ANOMALY_05000182 + if (channel >= CH_IMEM_STREAM0_DEST && channel <= CH_IMEM_STREAM1_DEST) { + if (get_cclk() > 500000000) { + printk(KERN_WARNING + "Request IMDMA failed due to ANOMALY 05000182\n"); + return -EFAULT; + } + } +#endif + mutex_lock(&(dma_ch[channel].dmalock)); if ((dma_ch[channel].chan_status == DMA_CHANNEL_REQUESTED) |