mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-10 17:06:41 +07:00
mmc: tmio: enable SoC specific DMA buswidth settings
Renesas SDHI which is based on TMIO driver has 2 type SoC. 1st one is used as SH-Mobile series, and 2nd is R-Car series. R-Car series SoC has DMA buswidth setting register which enables 32bit access. This patch adds .dma_buswidth and enables it. Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
This commit is contained in:
parent
5add2aca3a
commit
361936ef03
@ -16,6 +16,7 @@
|
||||
#ifndef TMIO_MMC_H
|
||||
#define TMIO_MMC_H
|
||||
|
||||
#include <linux/dmaengine.h>
|
||||
#include <linux/highmem.h>
|
||||
#include <linux/mmc/tmio.h>
|
||||
#include <linux/mutex.h>
|
||||
@ -46,6 +47,7 @@ struct tmio_mmc_dma {
|
||||
void *chan_priv_rx;
|
||||
int slave_id_tx;
|
||||
int slave_id_rx;
|
||||
enum dma_slave_buswidth dma_buswidth;
|
||||
bool (*filter)(struct dma_chan *chan, void *arg);
|
||||
void (*enable)(struct tmio_mmc_host *host, bool enable);
|
||||
};
|
||||
|
@ -293,7 +293,9 @@ void tmio_mmc_request_dma(struct tmio_mmc_host *host, struct tmio_mmc_data *pdat
|
||||
cfg.slave_id = host->dma->slave_id_tx;
|
||||
cfg.direction = DMA_MEM_TO_DEV;
|
||||
cfg.dst_addr = res->start + (CTL_SD_DATA_PORT << host->bus_shift);
|
||||
cfg.dst_addr_width = DMA_SLAVE_BUSWIDTH_2_BYTES;
|
||||
cfg.dst_addr_width = host->dma->dma_buswidth;
|
||||
if (!cfg.dst_addr_width)
|
||||
cfg.dst_addr_width = DMA_SLAVE_BUSWIDTH_2_BYTES;
|
||||
cfg.src_addr = 0;
|
||||
ret = dmaengine_slave_config(host->chan_tx, &cfg);
|
||||
if (ret < 0)
|
||||
@ -312,7 +314,9 @@ void tmio_mmc_request_dma(struct tmio_mmc_host *host, struct tmio_mmc_data *pdat
|
||||
cfg.slave_id = host->dma->slave_id_rx;
|
||||
cfg.direction = DMA_DEV_TO_MEM;
|
||||
cfg.src_addr = cfg.dst_addr + host->pdata->dma_rx_offset;
|
||||
cfg.src_addr_width = DMA_SLAVE_BUSWIDTH_2_BYTES;
|
||||
cfg.src_addr_width = host->dma->dma_buswidth;
|
||||
if (!cfg.src_addr_width)
|
||||
cfg.src_addr_width = DMA_SLAVE_BUSWIDTH_2_BYTES;
|
||||
cfg.dst_addr = 0;
|
||||
ret = dmaengine_slave_config(host->chan_rx, &cfg);
|
||||
if (ret < 0)
|
||||
|
Loading…
Reference in New Issue
Block a user