Add device tree support.
Signed-off-by: Yoshinori Sato ysato@users.sourceforge.jp --- doc/device-tree-bindings/serial/sh.txt | 6 ++++++ drivers/serial/serial_sh.c | 28 ++++++++++++++++++++++++++++ 2 files changed, 34 insertions(+) create mode 100644 doc/device-tree-bindings/serial/sh.txt
diff --git a/doc/device-tree-bindings/serial/sh.txt b/doc/device-tree-bindings/serial/sh.txt new file mode 100644 index 0000000..b23b135 --- /dev/null +++ b/doc/device-tree-bindings/serial/sh.txt @@ -0,0 +1,6 @@ +* Renesas SCI serial interface + +Required properties: +- compatible: must be "renesas,scif" or "renesas,scifa" +- reg: exactly one register range with length +- clock: input clock frequency for the SCI unit diff --git a/drivers/serial/serial_sh.c b/drivers/serial/serial_sh.c index 8693c1e..32b2bf0 100644 --- a/drivers/serial/serial_sh.c +++ b/drivers/serial/serial_sh.c @@ -17,6 +17,8 @@ #include <dm/platform_data/serial_sh.h> #include "serial_sh.h"
+DECLARE_GLOBAL_DATA_PTR; + #if defined(CONFIG_CPU_SH7760) || \ defined(CONFIG_CPU_SH7780) || \ defined(CONFIG_CPU_SH7785) || \ @@ -201,10 +203,35 @@ static const struct dm_serial_ops sh_serial_ops = { .setbrg = sh_serial_setbrg, };
+#ifdef CONFIG_OF_CONTROL +static const struct udevice_id sh_serial_id[] = { + {.compatible = "renesas,scif", .data = PORT_SCIF}, + {.compatible = "renesas,scifa", .data = PORT_SCIFA}, + {} +}; + +static int sh_serial_ofdata_to_platdata(struct udevice *dev) +{ + struct sh_serial_platdata *plat = dev_get_platdata(dev); + fdt_addr_t addr; + + addr = fdtdec_get_addr(gd->fdt_blob, dev->of_offset, "reg"); + if (addr == FDT_ADDR_T_NONE) + return -EINVAL; + + plat->base = addr; + plat->clk = fdtdec_get_int(gd->fdt_blob, dev->of_offset, "clock", 1); + plat->type = dev_get_driver_data(dev); + return 0; +} +#endif + U_BOOT_DRIVER(serial_sh) = { .name = "serial_sh", .id = UCLASS_SERIAL, + .of_match = of_match_ptr(sh_serial_id), + .ofdata_to_platdata = of_match_ptr(sh_serial_ofdata_to_platdata), + .platdata_auto_alloc_size = sizeof(struct sh_serial_platdata), .probe = sh_serial_probe, .ops = &sh_serial_ops, .flags = DM_FLAG_PRE_RELOC,