summaryrefslogtreecommitdiffstats
path: root/drivers/mmc/dw_mmc.c
Commit message (Collapse)AuthorAgeFilesLines
* DWMMC: SMDK5420: Disable SMU for eMMCRajeshwari Shinde2013-10-311-0/+11
| | | | | | | | | | | | SMDK5420 has a new Security Management Unit added for dwmmc driver, hence, configuring the control registers to support booting via eMMC. Signed-off-by: Alim Akhtar <alim.akhtar@samsung.com> Signed-off-by: Rajeshwari Shinde <rajeshwari.s@samsung.com> Acked-by: Simon Glass <sjg@chromium.org> Acked-by: Jaehoon Chung <jh80.chung@samsung.com> Acked-by: Pantelis Antoniou <panto@antoniou-consulting.com>
* mmc: dw_mmc: change the callback function name.Jaehoon Chung2013-10-311-3/+3
| | | | | | | | To prevent the confusion, use the get_mmc_clk() instead of mmc_clk(). get_mmc_clk() is more exactly name. Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com> Acked-by: Pantelis Antoniou <panto@antoniou-consulting.com>
* mmc/dw_mmc: Allocate the correct amount of descriptorsMischa Jonker2013-09-201-2/+2
| | | | | | | | | | | | | This fixes two issues: * a descriptor was allocated for every block, while a descriptor can take 8 blocks * there was an off-by-one error in the descriptor preparation: there were two last descriptors, one with length==0 Signed-off-by: Mischa Jonker <mjonker@synopsys.com> Cc: Alexey Brodkin <abrodkin@synopsys.com> Cc: Jaehoon Chung <jh80.chung@samsung.com> Cc: Andy Fleming <afleming@gmail.com>
* mmc/dw_mmc: Fix DMA descriptor corruptionMischa Jonker2013-09-201-3/+4
| | | | | | | | | | | | | | | | | | | In dwmci_prepare_data, the descriptors are allocated for DMA transfer. These are allocated using the ALLOC_CACHE_ALIGN_BUFFER. This macro uses the stack to allocate these descriptors. This becomes a problem if the DMA transfer continues after the processor leaves the function in which the descriptors were allocated. Therefore, I have moved the allocated of the buffers up one level, to dwmci_send_cmd(). The DMA transfer should be complete when leaving this function. Signed-off-by: Mischa Jonker <mjonker@synopsys.com> Cc: Alexey Brodkin <abrodkin@synopsys.com> Cc: Jaehoon Chung <jh80.chung@samsung.com> Cc: Andy Fleming <afleming@gmail.com> Acked-by: Jaehoon Chung <jh80.chung@samsung.com> Acked-by: Pantelis Antoniou <panto@antoniou-consulting.com>
* Add GPL-2.0+ SPDX-License-Identifier to source filesWolfgang Denk2013-07-241-14/+1
| | | | | | Signed-off-by: Wolfgang Denk <wd@denx.de> [trini: Fixup common/cmd_io.c] Signed-off-by: Tom Rini <trini@ti.com>
* drivers/mmc/dw_mmc - remove extra arch specific "asm/arch/clk.h" inclusionAlexey Brodkin2013-07-161-1/+0
| | | | | | | | | | | | | | | | | | 1. No contents of "asm/arch/clk.h" is used within "dw_mmc.c". 2. If arch doesn't have "asm/arch/clk.h" driver won't build. Without mentioned inclusion dw_mmc driver could be built for arches other than ARM. For ARM driver still builds without it. Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com> Cc: Mischa Jonker <mjonker@synopsys.com> Cc: Andy Fleming <afleming@gmail.com> Cc: Rajeshwari Shinde <rajeshwari.s@samsung.com> Cc: Amar <amarendra.xt@samsung.com> Cc: Minkyu Kang <mk7.kang@samsung.com> Cc: Jaehoon Chung <jh80.chung@samsung.com> Signed-off-by: Andy Fleming <afleming@freescale.com>
* MMC: DWMMC: Fix FIFO_DEPTH calculationRajeshwari Shinde2013-06-171-8/+6
| | | | | | | | | | | | | | | | | | | | Current DWMMC driver used to give FIFO underrun/overrun error every 3rd time for mmc rescan command. In current code FIFO_DEPTH is getting calculated after reading the default FIFOTH register and extracting the RX_WMARK bits from it i.e (RX_WMARK = FIFO_DEPTH/2 -1). Instead of storing the correct value, we were recalculating the FIFO_DEPT each time which is not correct. Based on "[PATCH V9 3/9] DWMMC: Initialise dwmci and resolve EMMC read write issues" http://permalink.gmane.org/gmane.comp.boot-loaders.u-boot/160247 Signed-off-by: Hatim Ali <hatim.rv@samsung.com> Signed-off-by: Rajeshwari Shinde <rajeshwari.s@samsung.com> Acked-by: Simon Glass <sjg@chromium.org> Tested-by: Simon Glass <sjg@chromium.org> Acked-by: Jaehoon Chung <jh80.chung@samsung.com> Acked-by: Andy Fleming <afleming@freescale.com> Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
* DWMMC: Initialise dwmci and resolve EMMC read write issuesAmar2013-06-131-9/+12
| | | | | | | | | | | | This patch enumerates dwmci and set auto stop command during dwmci initialisation. EMMC read/write is not happening in current implementation due to improper fifo size computation. Hence modified the fifo size computation to resolve EMMC read write issues. Signed-off-by: Amar <amarendra.xt@samsung.com> Acked-by: Jaehoon Chung <jh80.chung@samsung.com> Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
* mmc: dw-mmc: support DesignWare MMC ControllerJaehoon Chung2012-10-221-0/+385
Support the DesginWare MMC Controller. Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Rajeshawari Shinde <rajeshwari.s@samsung.com> Signed-off-by: Andy Fleming <afleming@freescale.com>
OpenPOWER on IntegriCloud