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| author | Marek Vasut <marek.vasut@gmail.com> | 2017-07-21 23:19:18 +0200 |
|---|---|---|
| committer | Nobuhiro Iwamatsu <iwamatsu@nigauri.org> | 2017-08-03 04:26:25 +0900 |
| commit | 8171499df99884e770430346698d7045c777a46b (patch) | |
| tree | 971cd374626c2799cc12c91c2aa6114ce8c16584 /drivers/serial/serial_sh.c | |
| parent | 03a38a397248529b01908eaed24f9262545ca9b5 (diff) | |
| download | u-boot-8171499df99884e770430346698d7045c777a46b.tar.gz u-boot-8171499df99884e770430346698d7045c777a46b.tar.xz u-boot-8171499df99884e770430346698d7045c777a46b.zip | |
serial: sh: Use the clock framework to obtain clock config
Since we now have clock driver on the RCar Gen3 , obtain the clock
configuration using the clock framework functions. In case this
fails, fall back to the original code for pulling the clock config
directly out of OF.
Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
Signed-off-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
Diffstat (limited to 'drivers/serial/serial_sh.c')
| -rw-r--r-- | drivers/serial/serial_sh.c | 13 |
1 files changed, 11 insertions, 2 deletions
diff --git a/drivers/serial/serial_sh.c b/drivers/serial/serial_sh.c index 51f7fbcfb7..087785f9a2 100644 --- a/drivers/serial/serial_sh.c +++ b/drivers/serial/serial_sh.c @@ -9,6 +9,7 @@ #include <common.h> #include <errno.h> +#include <clk.h> #include <dm.h> #include <asm/io.h> #include <asm/processor.h> @@ -214,15 +215,23 @@ static const struct udevice_id sh_serial_id[] ={ static int sh_serial_ofdata_to_platdata(struct udevice *dev) { struct sh_serial_platdata *plat = dev_get_platdata(dev); + struct clk sh_serial_clk; fdt_addr_t addr; + int ret; addr = fdtdec_get_addr(gd->fdt_blob, dev_of_offset(dev), "reg"); if (addr == FDT_ADDR_T_NONE) return -EINVAL; plat->base = addr; - plat->clk = fdtdec_get_int(gd->fdt_blob, dev_of_offset(dev), "clock", - 1); + + ret = clk_get_by_name(dev, "fck", &sh_serial_clk); + if (!ret) + plat->clk = clk_get_rate(&sh_serial_clk); + else + plat->clk = fdtdec_get_int(gd->fdt_blob, dev_of_offset(dev), + "clock", 1); + plat->type = dev_get_driver_data(dev); return 0; } |