Re: [PATCH v2 15/17] MIPS: JZ4770: Workaround for corrupted DMA transfers

2017-06-26 Thread Paul Cercueil
Hi, Le 2017-06-22 09:21, Marcin Nowakowski a écrit : Hi Paul, Maarten, On 20.06.2017 17:18, Paul Cercueil wrote: From: Maarten ter Huurne We have seen MMC DMA transfers read corrupted data from SDRAM when a burst interval ends at physical address 0x1000. To avoid

Re: [PATCH v2 15/17] MIPS: JZ4770: Workaround for corrupted DMA transfers

2017-06-26 Thread Paul Cercueil
Hi, Le 2017-06-22 09:21, Marcin Nowakowski a écrit : Hi Paul, Maarten, On 20.06.2017 17:18, Paul Cercueil wrote: From: Maarten ter Huurne We have seen MMC DMA transfers read corrupted data from SDRAM when a burst interval ends at physical address 0x1000. To avoid this problem, we remove

Re: [PATCH v2 15/17] MIPS: JZ4770: Workaround for corrupted DMA transfers

2017-06-22 Thread Marcin Nowakowski
Hi Paul, Maarten, On 20.06.2017 17:18, Paul Cercueil wrote: From: Maarten ter Huurne We have seen MMC DMA transfers read corrupted data from SDRAM when a burst interval ends at physical address 0x1000. To avoid this problem, we remove the final page of low memory

Re: [PATCH v2 15/17] MIPS: JZ4770: Workaround for corrupted DMA transfers

2017-06-22 Thread Marcin Nowakowski
Hi Paul, Maarten, On 20.06.2017 17:18, Paul Cercueil wrote: From: Maarten ter Huurne We have seen MMC DMA transfers read corrupted data from SDRAM when a burst interval ends at physical address 0x1000. To avoid this problem, we remove the final page of low memory from the memory map.

[PATCH v2 15/17] MIPS: JZ4770: Workaround for corrupted DMA transfers

2017-06-20 Thread Paul Cercueil
From: Maarten ter Huurne We have seen MMC DMA transfers read corrupted data from SDRAM when a burst interval ends at physical address 0x1000. To avoid this problem, we remove the final page of low memory from the memory map. Signed-off-by: Maarten ter Huurne

[PATCH v2 15/17] MIPS: JZ4770: Workaround for corrupted DMA transfers

2017-06-20 Thread Paul Cercueil
From: Maarten ter Huurne We have seen MMC DMA transfers read corrupted data from SDRAM when a burst interval ends at physical address 0x1000. To avoid this problem, we remove the final page of low memory from the memory map. Signed-off-by: Maarten ter Huurne --- arch/mips/jz4740/setup.c |