by saving reg_offset inside our host structure
we can ioremap the correct area, make use of
resource_size() and make sure newer versions
of the IP have access to the new set of registers
which were added back in OMAP4.
Signed-off-by: Felipe Balbi <balbi@xxxxxx>
---
drivers/mmc/host/omap_hsmmc.c | 14 ++++++++------
1 file changed, 8 insertions(+), 6 deletions(-)
diff --git a/drivers/mmc/host/omap_hsmmc.c b/drivers/mmc/host/omap_hsmmc.c
index a8f1e08..d46f768 100644
--- a/drivers/mmc/host/omap_hsmmc.c
+++ b/drivers/mmc/host/omap_hsmmc.c
@@ -152,10 +152,10 @@
* MMC Host controller read/write API's
*/
#define OMAP_HSMMC_READ(host, reg) \
- __raw_readl((host)->base + OMAP_HSMMC_##reg)
+ __raw_readl((host)->base + OMAP_HSMMC_##reg + host->reg_offset)
#define OMAP_HSMMC_WRITE(host, reg, val) \
- __raw_writel((val), (host)->base + OMAP_HSMMC_##reg)
+ __raw_writel((val), (host)->base + OMAP_HSMMC_##reg + host->reg_offset)
struct omap_hsmmc_next {
unsigned int dma_len;
@@ -184,6 +184,7 @@ struct omap_hsmmc_host {
void __iomem *base;
resource_size_t mapbase;
spinlock_t irq_lock; /* Prevent races with irq handler */
+ unsigned int reg_offset;
unsigned int dma_len;
unsigned int dma_sg_idx;
unsigned char bus_mode;
@@ -1354,8 +1355,8 @@ static int omap_hsmmc_setup_dma_transfer(struct omap_hsmmc_host *host,
chan = omap_hsmmc_get_dma_chan(host, data);
- cfg.src_addr = host->mapbase + OMAP_HSMMC_DATA;
- cfg.dst_addr = host->mapbase + OMAP_HSMMC_DATA;
+ cfg.src_addr = host->mapbase + OMAP_HSMMC_DATA + host->reg_offset;
+ cfg.dst_addr = host->mapbase + OMAP_HSMMC_DATA + host->reg_offset;
cfg.src_addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES;
cfg.dst_addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES;
cfg.src_maxburst = data->blksz / 4;
@@ -1903,8 +1904,9 @@ static int omap_hsmmc_probe(struct platform_device *pdev)
host->dma_ch = -1;
host->irq = irq;
host->slot_id = 0;
- host->mapbase = res->start + pdata->reg_offset;
- host->base = ioremap(host->mapbase, SZ_4K);
+ host->reg_offset = pdata->reg_offset;
+ host->mapbase = res->start;
+ host->base = ioremap(res->start, resource_size(res));
host->power_mode = MMC_POWER_OFF;
host->next_data.cookie = 1;
host->pbias_enabled = 0;
--
1.9.1.286.g5172cb3
--
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