mmc: tmio: bus_shift become tmio_mmc_data member
.bus_shift is used to 16/32bit register access offset calculation on
tmio driver. tmio_mmc_xxx is used from Toshiba/Renesas now, but this
bus_shift value depends on HW IP. This patch moves .bus_shift to
tmio_mmc_data member and sets it on each driver.
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
diff --git a/drivers/mmc/host/sh_mobile_sdhi.c b/drivers/mmc/host/sh_mobile_sdhi.c
index ed1718a..38553ae 100644
--- a/drivers/mmc/host/sh_mobile_sdhi.c
+++ b/drivers/mmc/host/sh_mobile_sdhi.c
@@ -133,10 +133,15 @@
struct tmio_mmc_data *mmc_data;
struct sh_mobile_sdhi_info *p = pdev->dev.platform_data;
struct tmio_mmc_host *host;
+ struct resource *res;
int irq, ret, i = 0;
bool multiplexed_isr = true;
struct tmio_mmc_dma *dma_priv;
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (!res)
+ return -EINVAL;
+
priv = devm_kzalloc(&pdev->dev, sizeof(struct sh_mobile_sdhi), GFP_KERNEL);
if (priv == NULL) {
dev_err(&pdev->dev, "kzalloc failed\n");
@@ -206,6 +211,9 @@
mmc_data->flags |= of_data->tmio_flags;
}
+ /* SD control register space size is 0x100, 0x200 for bus_shift=1 */
+ mmc_data->bus_shift = resource_size(res) >> 9;
+
ret = tmio_mmc_host_probe(&host, pdev, mmc_data);
if (ret < 0)
goto eprobe;
diff --git a/drivers/mmc/host/tmio_mmc.c b/drivers/mmc/host/tmio_mmc.c
index 8860d4d..6cfb2d5 100644
--- a/drivers/mmc/host/tmio_mmc.c
+++ b/drivers/mmc/host/tmio_mmc.c
@@ -62,6 +62,7 @@
const struct mfd_cell *cell = mfd_get_cell(pdev);
struct tmio_mmc_data *pdata;
struct tmio_mmc_host *host;
+ struct resource *res;
int ret = -EINVAL, irq;
if (pdev->num_resources != 2)
@@ -84,6 +85,13 @@
goto out;
}
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (!res)
+ return -EINVAL;
+
+ /* SD control register space size is 0x200, 0x400 for bus_shift=1 */
+ pdata->bus_shift = resource_size(res_ctl) >> 10;
+
ret = tmio_mmc_host_probe(&host, pdev, pdata);
if (ret)
goto cell_disable;
diff --git a/drivers/mmc/host/tmio_mmc.h b/drivers/mmc/host/tmio_mmc.h
index 86fd21e..aaa9c7e 100644
--- a/drivers/mmc/host/tmio_mmc.h
+++ b/drivers/mmc/host/tmio_mmc.h
@@ -58,7 +58,6 @@
struct tmio_mmc_host {
void __iomem *ctl;
- unsigned long bus_shift;
struct mmc_command *cmd;
struct mmc_request *mrq;
struct mmc_data *data;
@@ -176,19 +175,19 @@
static inline u16 sd_ctrl_read16(struct tmio_mmc_host *host, int addr)
{
- return readw(host->ctl + (addr << host->bus_shift));
+ return readw(host->ctl + (addr << host->pdata->bus_shift));
}
static inline void sd_ctrl_read16_rep(struct tmio_mmc_host *host, int addr,
u16 *buf, int count)
{
- readsw(host->ctl + (addr << host->bus_shift), buf, count);
+ readsw(host->ctl + (addr << host->pdata->bus_shift), buf, count);
}
static inline u32 sd_ctrl_read32(struct tmio_mmc_host *host, int addr)
{
- return readw(host->ctl + (addr << host->bus_shift)) |
- readw(host->ctl + ((addr + 2) << host->bus_shift)) << 16;
+ return readw(host->ctl + (addr << host->pdata->bus_shift)) |
+ readw(host->ctl + ((addr + 2) << host->pdata->bus_shift)) << 16;
}
static inline void sd_ctrl_write16(struct tmio_mmc_host *host, int addr, u16 val)
@@ -198,19 +197,19 @@
*/
if (host->pdata->write16_hook && host->pdata->write16_hook(host, addr))
return;
- writew(val, host->ctl + (addr << host->bus_shift));
+ writew(val, host->ctl + (addr << host->pdata->bus_shift));
}
static inline void sd_ctrl_write16_rep(struct tmio_mmc_host *host, int addr,
u16 *buf, int count)
{
- writesw(host->ctl + (addr << host->bus_shift), buf, count);
+ writesw(host->ctl + (addr << host->pdata->bus_shift), buf, count);
}
static inline void sd_ctrl_write32(struct tmio_mmc_host *host, int addr, u32 val)
{
- writew(val, host->ctl + (addr << host->bus_shift));
- writew(val >> 16, host->ctl + ((addr + 2) << host->bus_shift));
+ writew(val, host->ctl + (addr << host->pdata->bus_shift));
+ writew(val >> 16, host->ctl + ((addr + 2) << host->pdata->bus_shift));
}
diff --git a/drivers/mmc/host/tmio_mmc_dma.c b/drivers/mmc/host/tmio_mmc_dma.c
index 65edb4a..03e7b28 100644
--- a/drivers/mmc/host/tmio_mmc_dma.c
+++ b/drivers/mmc/host/tmio_mmc_dma.c
@@ -293,7 +293,7 @@
if (pdata->dma->chan_priv_tx)
cfg.slave_id = pdata->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 = res->start + (CTL_SD_DATA_PORT << host->pdata->bus_shift);
cfg.src_addr = 0;
ret = dmaengine_slave_config(host->chan_tx, &cfg);
if (ret < 0)
diff --git a/drivers/mmc/host/tmio_mmc_pio.c b/drivers/mmc/host/tmio_mmc_pio.c
index b94cb16..6836a80 100644
--- a/drivers/mmc/host/tmio_mmc_pio.c
+++ b/drivers/mmc/host/tmio_mmc_pio.c
@@ -1013,9 +1013,6 @@
_host->set_pwr = pdata->set_pwr;
_host->set_clk_div = pdata->set_clk_div;
- /* SD control register space size is 0x200, 0x400 for bus_shift=1 */
- _host->bus_shift = resource_size(res_ctl) >> 10;
-
ret = tmio_mmc_init_ocr(_host);
if (ret < 0)
goto host_free;
diff --git a/include/linux/mfd/tmio.h b/include/linux/mfd/tmio.h
index b22883d..92f72cf 100644
--- a/include/linux/mfd/tmio.h
+++ b/include/linux/mfd/tmio.h
@@ -102,6 +102,7 @@
unsigned long capabilities;
unsigned long capabilities2;
unsigned long flags;
+ unsigned long bus_shift;
u32 ocr_mask; /* available voltages */
struct tmio_mmc_dma *dma;
struct device *dev;