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serial: stm32f7: add device tree support

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This patch adds device tree support for stm32f7 serial driver & removes serial
platform data structure.

Signed-off-by: Vikas Manocha <vikas.manocha@st.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Vikas Manocha 2017-02-12 10:25:44 -08:00 committed by Tom Rini
parent c62c1b3c24
commit 42bf5e7c27
2 changed files with 24 additions and 10 deletions
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10
board/st/stm32f746-disco/stm32f746-disco.c
View file

@ -267,16 +267,6 @@ out:
return rv;
}
static const struct stm32x7_serial_platdata serial_platdata = {
.base = (struct stm32_usart *)USART1_BASE,
.clock = CONFIG_SYS_CLK_FREQ,
};
U_BOOT_DEVICE(stm32x7_serials) = {
.name = "serial_stm32x7",
.platdata = &serial_platdata,
};
#ifdef CONFIG_ETH_DESIGNWARE
const struct stm32_gpio_ctl gpio_ctl_eth = {
.mode = STM32_GPIO_MODE_AF,

24
drivers/serial/serial_stm32x7.c
View file

@ -81,6 +81,27 @@ static int stm32_serial_probe(struct udevice *dev)
return 0;
}
#if CONFIG_IS_ENABLED(OF_CONTROL)
static const struct udevice_id stm32_serial_id[] = {
{.compatible = "st,stm32-usart"},
{.compatible = "st,stm32-uart"},
{}
};
static int stm32_serial_ofdata_to_platdata(struct udevice *dev)
{
struct stm32x7_serial_platdata *plat = dev_get_platdata(dev);
fdt_addr_t addr;
addr = dev_get_addr(dev);
if (addr == FDT_ADDR_T_NONE)
return -EINVAL;
plat->base = (struct stm32_usart *)addr;
return 0;
}
#endif
static const struct dm_serial_ops stm32_serial_ops = {
.putc = stm32_serial_putc,
.pending = stm32_serial_pending,
@ -91,6 +112,9 @@ static const struct dm_serial_ops stm32_serial_ops = {
U_BOOT_DRIVER(serial_stm32) = {
.name = "serial_stm32x7",
.id = UCLASS_SERIAL,
.of_match = of_match_ptr(stm32_serial_id),
.ofdata_to_platdata = of_match_ptr(stm32_serial_ofdata_to_platdata),
.platdata_auto_alloc_size = sizeof(struct stm32x7_serial_platdata),
.ops = &stm32_serial_ops,
.probe = stm32_serial_probe,
.flags = DM_FLAG_PRE_RELOC,