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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2009-02-04 07:56:25 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-02-04 07:56:25 -0800 |
| commit | eda58a85ec3fc05855a26654d97a2b53f0e715b9 (patch) | |
| tree | de995f6f0e38c3f35e866519c6de7e331ce6cc91 /arch/blackfin/kernel/bfin_dma_5xx.c | |
| parent | 024bb9617e01716c5ac7d235f54483cc6018978f (diff) | |
| parent | c8e674125e03c5f36ccfd61d83b933e6956074b0 (diff) | |
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/blackfin-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/blackfin-2.6: (40 commits)
Blackfin arch: Remove outdated code
Blackfin arch: Fix udelay implementation
Blackfin arch: Update Copyright information
Blackfin arch: Add BF561 PPI POLS, POLC Masks
Blackfin arch: Update CM-BF527 kernel config
Blackfin arch: define bfin_memmap as static since it is only used here
Blackfin arch: cplb mananger: use a do...while loop rather than a for loop
Blackfin arch: fix bug - traps test case 19 for exception 0x2d fails
Blackfin arch: add platform device bfin_mii-bus and KSZ8893M switch driver platform resources to board files
Blackfin arch: build jtag tty driver as a module by default
Blackfin arch: fix 2 bugs related to debug
Blackfin arch: Add ANOMALY_05000380 to BF54x to kill the compile warning
Blackfin arch: Fix bug - 561 SMP kernel can't boot from jffs2
Blackfin arch: base SIC_IWR# programming on whether the MMR exists
Blackfin arch: read SYSCR on newer parts that mirror the bits of SWRST in it
Blackfin arch: fixup board init function name
Blackfin arch: drop CONFIG_I2C_BOARDINFO ifdefs
Blackfin arch: bfin_reset->_bfin_reset redirection no longer needed
Blackfin arch: sync reboot handler with version in u-boot
Blackfin arch: Faster Implementation of csum_tcpudp_nofold()
...
Diffstat (limited to 'arch/blackfin/kernel/bfin_dma_5xx.c')
| -rw-r--r-- | arch/blackfin/kernel/bfin_dma_5xx.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/arch/blackfin/kernel/bfin_dma_5xx.c b/arch/blackfin/kernel/bfin_dma_5xx.c index 07e02c0d1c0..8531693fb48 100644 --- a/arch/blackfin/kernel/bfin_dma_5xx.c +++ b/arch/blackfin/kernel/bfin_dma_5xx.c @@ -249,6 +249,13 @@ static void __dma_memcpy(u32 daddr, s16 dmod, u32 saddr, s16 smod, size_t cnt, u spin_lock_irqsave(&mdma_lock, flags); + /* Force a sync in case a previous config reset on this channel + * occurred. This is needed so subsequent writes to DMA registers + * are not spuriously lost/corrupted. Do it under irq lock and + * without the anomaly version (because we are atomic already). + */ + __builtin_bfin_ssync(); + if (bfin_read_MDMA_S0_CONFIG()) while (!(bfin_read_MDMA_D0_IRQ_STATUS() & DMA_DONE)) continue; |