diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/serial/serial_pl01x.c | 73 |
1 files changed, 73 insertions, 0 deletions
diff --git a/drivers/serial/serial_pl01x.c b/drivers/serial/serial_pl01x.c index 665a0e4..e6313ad 100644 --- a/drivers/serial/serial_pl01x.c +++ b/drivers/serial/serial_pl01x.c @@ -12,6 +12,7 @@ /* Simple U-Boot driver for the PrimeCell PL010/PL011 UARTs */ #include <common.h> +#include <dm.h> #include <errno.h> #include <watchdog.h> #include <asm/io.h> @@ -20,12 +21,15 @@ #include <linux/compiler.h> #include "serial_pl01x_internal.h" +#ifndef CONFIG_DM_SERIAL + static volatile unsigned char *const port[] = CONFIG_PL01x_PORTS; static enum pl01x_type pl01x_type __attribute__ ((section(".data"))); static struct pl01x_regs *base_regs __attribute__ ((section(".data"))); #define NUM_PORTS (sizeof(port)/sizeof(port[0])) DECLARE_GLOBAL_DATA_PTR; +#endif static int pl01x_putc(struct pl01x_regs *regs, char c) { @@ -274,3 +278,72 @@ __weak struct serial_device *default_serial_console(void) } #endif /* nCONFIG_DM_SERIAL */ + +#ifdef CONFIG_DM_SERIAL + +struct pl01x_priv { + struct pl01x_regs *regs; + enum pl01x_type type; +}; + +static int pl01x_serial_setbrg(struct udevice *dev, int baudrate) +{ + struct pl01x_serial_platdata *plat = dev_get_platdata(dev); + struct pl01x_priv *priv = dev_get_priv(dev); + + pl01x_generic_setbrg(priv->regs, priv->type, plat->clock, baudrate); + + return 0; +} + +static int pl01x_serial_probe(struct udevice *dev) +{ + struct pl01x_serial_platdata *plat = dev_get_platdata(dev); + struct pl01x_priv *priv = dev_get_priv(dev); + + priv->regs = (struct pl01x_regs *)plat->base; + priv->type = plat->type; + return pl01x_generic_serial_init(priv->regs, priv->type); +} + +static int pl01x_serial_getc(struct udevice *dev) +{ + struct pl01x_priv *priv = dev_get_priv(dev); + + return pl01x_getc(priv->regs); +} + +static int pl01x_serial_putc(struct udevice *dev, const char ch) +{ + struct pl01x_priv *priv = dev_get_priv(dev); + + return pl01x_putc(priv->regs, ch); +} + +static int pl01x_serial_pending(struct udevice *dev, bool input) +{ + struct pl01x_priv *priv = dev_get_priv(dev); + unsigned int fr = readl(&priv->regs->fr); + + if (input) + return pl01x_tstc(priv->regs); + else + return fr & UART_PL01x_FR_TXFF ? 0 : 1; +} + +static const struct dm_serial_ops pl01x_serial_ops = { + .putc = pl01x_serial_putc, + .pending = pl01x_serial_pending, + .getc = pl01x_serial_getc, + .setbrg = pl01x_serial_setbrg, +}; + +U_BOOT_DRIVER(serial_pl01x) = { + .name = "serial_pl01x", + .id = UCLASS_SERIAL, + .probe = pl01x_serial_probe, + .ops = &pl01x_serial_ops, + .flags = DM_FLAG_PRE_RELOC, +}; + +#endif |