diff options
| author | Masahiro Yamada <yamada.masahiro@socionext.com> | 2017-10-14 02:21:18 +0900 |
|---|---|---|
| committer | Masahiro Yamada <yamada.masahiro@socionext.com> | 2017-10-15 22:32:25 +0900 |
| commit | a89b9bc0950b7dd5f43a88e211be4b2acd58dad7 (patch) | |
| tree | 1ab773039d9b040a03614a1fb4af8066c774d3cc /drivers | |
| parent | c7372d61fd38c32c410bcab86dd39494ebe1fb06 (diff) | |
mtd: nand: denali_dt: add clock support
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>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/mtd/nand/denali.h | 1 | ||||
| -rw-r--r-- | drivers/mtd/nand/denali_dt.c | 12 |
2 files changed, 13 insertions, 0 deletions
diff --git a/drivers/mtd/nand/denali.h b/drivers/mtd/nand/denali.h index 08db48843d..f796f0dad1 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 4afd679a04..805c066b40 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); } |