#include <linux/kernel.h>
#include <linux/module.h>
+#include <linux/err.h>
#include <linux/io.h>
#include <linux/irq.h>
+#include <linux/clk.h>
#include <linux/platform_device.h>
#include <linux/mfd/core.h>
#include <linux/mfd/tmio.h>
T7L66XB_CELL_MMC,
};
+static const struct resource t7l66xb_mmc_resources[] = {
+ {
+ .start = 0x800,
+ .end = 0x9ff,
+ .flags = IORESOURCE_MEM,
+ },
+ {
+ .start = IRQ_T7L66XB_MMC,
+ .end = IRQ_T7L66XB_MMC,
+ .flags = IORESOURCE_IRQ,
+ },
+};
+
#define SCR_REVID 0x08 /* b Revision ID */
#define SCR_IMR 0x42 /* b Interrupt Mask */
#define SCR_DEV_CTL 0xe0 /* b Device control */
spinlock_t lock;
struct resource rscr;
+ struct clk *clk48m;
+ struct clk *clk32k;
int irq;
int irq_base;
};
static int t7l66xb_mmc_enable(struct platform_device *mmc)
{
struct platform_device *dev = to_platform_device(mmc->dev.parent);
- struct t7l66xb_platform_data *pdata = dev->dev.platform_data;
struct t7l66xb *t7l66xb = platform_get_drvdata(dev);
unsigned long flags;
u8 dev_ctl;
- if (pdata->enable_clk32k)
- pdata->enable_clk32k(dev);
+ clk_enable(t7l66xb->clk32k);
spin_lock_irqsave(&t7l66xb->lock, flags);
spin_unlock_irqrestore(&t7l66xb->lock, flags);
+ tmio_core_mmc_enable(t7l66xb->scr + 0x200, 0,
+ t7l66xb_mmc_resources[0].start & 0xfffe);
+
return 0;
}
static int t7l66xb_mmc_disable(struct platform_device *mmc)
{
struct platform_device *dev = to_platform_device(mmc->dev.parent);
- struct t7l66xb_platform_data *pdata = dev->dev.platform_data;
struct t7l66xb *t7l66xb = platform_get_drvdata(dev);
unsigned long flags;
u8 dev_ctl;
spin_unlock_irqrestore(&t7l66xb->lock, flags);
- if (pdata->disable_clk32k)
- pdata->disable_clk32k(dev);
+ clk_disable(t7l66xb->clk32k);
return 0;
}
+static void t7l66xb_mmc_pwr(struct platform_device *mmc, int state)
+{
+ struct platform_device *dev = to_platform_device(mmc->dev.parent);
+ struct t7l66xb *t7l66xb = platform_get_drvdata(dev);
+
+ tmio_core_mmc_pwr(t7l66xb->scr + 0x200, 0, state);
+}
+
+static void t7l66xb_mmc_clk_div(struct platform_device *mmc, int state)
+{
+ struct platform_device *dev = to_platform_device(mmc->dev.parent);
+ struct t7l66xb *t7l66xb = platform_get_drvdata(dev);
+
+ tmio_core_mmc_clk_div(t7l66xb->scr + 0x200, 0, state);
+}
+
/*--------------------------------------------------------------------------*/
-const static struct resource t7l66xb_mmc_resources[] = {
- {
- .start = 0x800,
- .end = 0x9ff,
- .flags = IORESOURCE_MEM,
- },
- {
- .start = 0x200,
- .end = 0x2ff,
- .flags = IORESOURCE_MEM,
- },
- {
- .start = IRQ_T7L66XB_MMC,
- .end = IRQ_T7L66XB_MMC,
- .flags = IORESOURCE_IRQ,
- },
+static struct tmio_mmc_data t7166xb_mmc_data = {
+ .hclk = 24000000,
+ .set_pwr = t7l66xb_mmc_pwr,
+ .set_clk_div = t7l66xb_mmc_clk_div,
};
-const static struct resource t7l66xb_nand_resources[] = {
+static const struct resource t7l66xb_nand_resources[] = {
{
.start = 0xc00,
.end = 0xc07,
.name = "tmio-mmc",
.enable = t7l66xb_mmc_enable,
.disable = t7l66xb_mmc_disable,
+ .driver_data = &t7166xb_mmc_data,
.num_resources = ARRAY_SIZE(t7l66xb_mmc_resources),
.resources = t7l66xb_mmc_resources,
},
#ifdef CONFIG_PM
static int t7l66xb_suspend(struct platform_device *dev, pm_message_t state)
{
+ struct t7l66xb *t7l66xb = platform_get_drvdata(dev);
struct t7l66xb_platform_data *pdata = dev->dev.platform_data;
if (pdata && pdata->suspend)
pdata->suspend(dev);
+ clk_disable(t7l66xb->clk48m);
return 0;
}
static int t7l66xb_resume(struct platform_device *dev)
{
+ struct t7l66xb *t7l66xb = platform_get_drvdata(dev);
struct t7l66xb_platform_data *pdata = dev->dev.platform_data;
+ clk_enable(t7l66xb->clk48m);
if (pdata && pdata->resume)
pdata->resume(dev);
+ tmio_core_mmc_enable(t7l66xb->scr + 0x200, 0,
+ t7l66xb_mmc_resources[0].start & 0xfffe);
+
return 0;
}
#else
t7l66xb->irq_base = pdata->irq_base;
+ t7l66xb->clk32k = clk_get(&dev->dev, "CLK_CK32K");
+ if (IS_ERR(t7l66xb->clk32k)) {
+ ret = PTR_ERR(t7l66xb->clk32k);
+ goto err_clk32k_get;
+ }
+
+ t7l66xb->clk48m = clk_get(&dev->dev, "CLK_CK48M");
+ if (IS_ERR(t7l66xb->clk48m)) {
+ ret = PTR_ERR(t7l66xb->clk48m);
+ clk_put(t7l66xb->clk32k);
+ goto err_clk48m_get;
+ }
+
rscr = &t7l66xb->rscr;
rscr->name = "t7l66xb-core";
rscr->start = iomem->start;
if (ret)
goto err_request_scr;
- t7l66xb->scr = ioremap(rscr->start, rscr->end - rscr->start + 1);
+ t7l66xb->scr = ioremap(rscr->start, resource_size(rscr));
if (!t7l66xb->scr) {
ret = -ENOMEM;
goto err_ioremap;
}
+ clk_enable(t7l66xb->clk48m);
+
if (pdata && pdata->enable)
pdata->enable(dev);
t7l66xb_cells[T7L66XB_CELL_NAND].data_size =
sizeof(t7l66xb_cells[T7L66XB_CELL_NAND]);
+ t7l66xb_cells[T7L66XB_CELL_MMC].platform_data =
+ &t7l66xb_cells[T7L66XB_CELL_MMC];
+ t7l66xb_cells[T7L66XB_CELL_MMC].data_size =
+ sizeof(t7l66xb_cells[T7L66XB_CELL_MMC]);
+
ret = mfd_add_devices(&dev->dev, dev->id,
t7l66xb_cells, ARRAY_SIZE(t7l66xb_cells),
iomem, t7l66xb->irq_base);
iounmap(t7l66xb->scr);
err_ioremap:
release_resource(&t7l66xb->rscr);
-err_noirq:
err_request_scr:
+ clk_put(t7l66xb->clk48m);
+err_clk48m_get:
+ clk_put(t7l66xb->clk32k);
+err_clk32k_get:
+err_noirq:
kfree(t7l66xb);
return ret;
}
int ret;
ret = pdata->disable(dev);
-
+ clk_disable(t7l66xb->clk48m);
+ clk_put(t7l66xb->clk48m);
t7l66xb_detach_irq(dev);
iounmap(t7l66xb->scr);
release_resource(&t7l66xb->rscr);