Enable clock in the probe hook. The clock rate will be necessary when setup_data_interface hook is supported.
Signed-off-by: Masahiro Yamada yamada.masahiro@socionext.com ---
drivers/mtd/nand/denali.h | 1 + drivers/mtd/nand/denali_dt.c | 12 ++++++++++++ 2 files changed, 13 insertions(+)
diff --git a/drivers/mtd/nand/denali.h b/drivers/mtd/nand/denali.h index 08db488..f796f0d 100644 --- a/drivers/mtd/nand/denali.h +++ b/drivers/mtd/nand/denali.h @@ -435,6 +435,7 @@ struct nand_buf {
struct denali_nand_info { struct nand_chip nand; + unsigned long clk_x_rate; /* bus interface clock rate */ int flash_bank; /* currently selected chip */ int status; int platform; diff --git a/drivers/mtd/nand/denali_dt.c b/drivers/mtd/nand/denali_dt.c index 4afd679..805c066 100644 --- a/drivers/mtd/nand/denali_dt.c +++ b/drivers/mtd/nand/denali_dt.c @@ -6,6 +6,7 @@ */
#include <common.h> +#include <clk.h> #include <dm.h> #include <linux/io.h> #include <linux/ioport.h> @@ -52,6 +53,7 @@ static int denali_dt_probe(struct udevice *dev) { struct denali_nand_info *denali = dev_get_priv(dev); const struct denali_dt_data *data; + struct clk clk; struct resource res; int ret;
@@ -73,6 +75,16 @@ static int denali_dt_probe(struct udevice *dev)
denali->flash_mem = devm_ioremap(dev, res.start, resource_size(&res));
+ ret = clk_get_by_index(dev, 0, &clk); + if (ret) + return ret; + + ret = clk_enable(&clk); + if (ret) + return ret; + + denali->clk_x_rate = clk_get_rate(&clk); + return denali_init(denali); }