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serial: uartlite: Add support for OF_PLATDATA

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The first change is to list DM_DRIVER_ALIAS for compatible string to be
able to match the driver. Only xps one is listed because opb one is likely
unused for quite a long time.

The second change is to add dtplat structure to plat data and fill register
base in probe.

Signed-off-by: Michal Simek <michal.simek@amd.com>
Link: https://lore.kernel.org/r/b494dbad529e919d33977b8ea6e6dbcd14e78907.1753261604.git.michal.simek@amd.com
This commit is contained in:
Michal Simek 2025-07-23 11:06:47 +02:00
parent d0e8a208f6
commit 3a85a27e34
1 changed files with 18 additions and 1 deletions
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19
drivers/serial/serial_xuartlite.c
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@ -32,7 +32,11 @@ struct uartlite {
};
struct uartlite_plat {
#if CONFIG_IS_ENABLED(OF_PLATDATA)
struct dtd_serial_uartlite dtplat;
#else
struct uartlite *regs;
#endif
};
struct uartlite_priv {
@ -94,9 +98,16 @@ static int uartlite_serial_probe(struct udevice *dev)
{
struct uartlite_plat *plat = dev_get_plat(dev);
struct uartlite_priv *priv = dev_get_priv(dev);
struct uartlite *regs = plat->regs;
struct uartlite *regs;
int ret;
#if CONFIG_IS_ENABLED(OF_PLATDATA)
struct dtd_serial_uartlite *dtplat = &plat->dtplat;
regs = (struct uartlite *)dtplat->reg[0];
#else
regs = plat->regs;
#endif
priv->regs = regs;
uart_out32(&regs->control, 0);
@ -112,6 +123,7 @@ static int uartlite_serial_probe(struct udevice *dev)
return 0;
}
#if !CONFIG_IS_ENABLED(OF_PLATDATA)
static int uartlite_serial_of_to_plat(struct udevice *dev)
{
struct uartlite_plat *plat = dev_get_plat(dev);
@ -120,6 +132,7 @@ static int uartlite_serial_of_to_plat(struct udevice *dev)
return 0;
}
#endif
static const struct dm_serial_ops uartlite_serial_ops = {
.putc = uartlite_serial_putc,
@ -137,13 +150,17 @@ U_BOOT_DRIVER(serial_uartlite) = {
.name = "serial_uartlite",
.id = UCLASS_SERIAL,
.of_match = uartlite_serial_ids,
#if !CONFIG_IS_ENABLED(OF_PLATDATA)
.of_to_plat = uartlite_serial_of_to_plat,
#endif
.priv_auto = sizeof(struct uartlite_priv),
.plat_auto = sizeof(struct uartlite_plat),
.probe = uartlite_serial_probe,
.ops = &uartlite_serial_ops,
};
DM_DRIVER_ALIAS(serial_uartlite, xlnx_xps_uartlite_1_00_a)
#ifdef CONFIG_DEBUG_UART_UARTLITE
#include <debug_uart.h>