This adds driver model support to lpuart serial driver.
Signed-off-by: Bin Meng bmeng.cn@gmail.com
---
Changes in v2: - Split to use two separate U_BOOT_DRIVER()
doc/driver-model/serial-howto.txt | 1 - drivers/serial/serial_lpuart.c | 167 ++++++++++++++++++++++++++++++++++++++ 2 files changed, 167 insertions(+), 1 deletion(-)
diff --git a/doc/driver-model/serial-howto.txt b/doc/driver-model/serial-howto.txt index 4706d56..c933b90 100644 --- a/doc/driver-model/serial-howto.txt +++ b/doc/driver-model/serial-howto.txt @@ -11,7 +11,6 @@ is time for maintainers to start converting over the remaining serial drivers: opencores_yanu.c serial_bfin.c serial_imx.c - serial_lpuart.c serial_max3100.c serial_pxa.c serial_s3c24x0.c diff --git a/drivers/serial/serial_lpuart.c b/drivers/serial/serial_lpuart.c index 5cc1997..3f9c4d1 100644 --- a/drivers/serial/serial_lpuart.c +++ b/drivers/serial/serial_lpuart.c @@ -5,6 +5,7 @@ */
#include <common.h> +#include <dm.h> #include <watchdog.h> #include <asm/io.h> #include <serial.h> @@ -49,6 +50,10 @@ DECLARE_GLOBAL_DATA_PTR;
struct lpuart_fsl *base = (struct lpuart_fsl *)LPUART_BASE;
+struct lpuart_serial_platdata { + struct lpuart_fsl *reg; +}; + #ifndef CONFIG_LPUART_32B_REG static void _lpuart_serial_setbrg(struct lpuart_fsl *base, int baudrate) { @@ -122,6 +127,7 @@ static int _lpuart_serial_init(struct lpuart_fsl *base) return 0; }
+#ifndef CONFIG_DM_SERIAL static void lpuart_serial_setbrg(void) { _lpuart_serial_setbrg(base, gd->baudrate); @@ -157,6 +163,54 @@ static struct serial_device lpuart_serial_drv = { .getc = lpuart_serial_getc, .tstc = lpuart_serial_tstc, }; +#else /* CONFIG_DM_SERIAL */ +static int lpuart_serial_setbrg(struct udevice *dev, int baudrate) +{ + struct lpuart_serial_platdata *plat = dev->platdata; + struct lpuart_fsl *reg = plat->reg; + + _lpuart_serial_setbrg(reg, baudrate); + + return 0; +} + +static int lpuart_serial_getc(struct udevice *dev) +{ + struct lpuart_serial_platdata *plat = dev->platdata; + struct lpuart_fsl *reg = plat->reg; + + return _lpuart_serial_getc(reg); +} + +static int lpuart_serial_putc(struct udevice *dev, const char c) +{ + struct lpuart_serial_platdata *plat = dev->platdata; + struct lpuart_fsl *reg = plat->reg; + + _lpuart_serial_putc(reg, c); + + return 0; +} + +static int lpuart_serial_pending(struct udevice *dev, bool input) +{ + struct lpuart_serial_platdata *plat = dev->platdata; + struct lpuart_fsl *reg = plat->reg; + + if (input) + return _lpuart_serial_tstc(reg); + else + return __raw_readb(®->us1) & US1_TDRE ? 0 : 1; +} + +static int lpuart_serial_probe(struct udevice *dev) +{ + struct lpuart_serial_platdata *plat = dev->platdata; + struct lpuart_fsl *reg = plat->reg; + + return _lpuart_serial_init(reg); +} +#endif /* CONFIG_DM_SERIAL */ #else static void _lpuart32_serial_setbrg(struct lpuart_fsl *base, int baudrate) { @@ -227,6 +281,7 @@ static int _lpuart32_serial_init(struct lpuart_fsl *base) return 0; }
+#ifndef CONFIG_DM_SERIAL static void lpuart32_serial_setbrg(void) { _lpuart32_serial_setbrg(base, gd->baudrate); @@ -262,8 +317,57 @@ static struct serial_device lpuart32_serial_drv = { .getc = lpuart32_serial_getc, .tstc = lpuart32_serial_tstc, }; +#else /* CONFIG_DM_SERIAL */ +static int lpuart32_serial_setbrg(struct udevice *dev, int baudrate) +{ + struct lpuart_serial_platdata *plat = dev->platdata; + struct lpuart_fsl *reg = plat->reg; + + _lpuart32_serial_setbrg(reg, baudrate); + + return 0; +} + +static int lpuart32_serial_getc(struct udevice *dev) +{ + struct lpuart_serial_platdata *plat = dev->platdata; + struct lpuart_fsl *reg = plat->reg; + + return _lpuart32_serial_getc(reg); +} + +static int lpuart32_serial_putc(struct udevice *dev, const char c) +{ + struct lpuart_serial_platdata *plat = dev->platdata; + struct lpuart_fsl *reg = plat->reg; + + _lpuart32_serial_putc(reg, c); + + return 0; +} + +static int lpuart32_serial_pending(struct udevice *dev, bool input) +{ + struct lpuart_serial_platdata *plat = dev->platdata; + struct lpuart_fsl *reg = plat->reg; + + if (input) + return _lpuart32_serial_tstc(reg); + else + return in_be32(®->stat) & STAT_TDRE ? 0 : 1; +} + +static int lpuart32_serial_probe(struct udevice *dev) +{ + struct lpuart_serial_platdata *plat = dev->platdata; + struct lpuart_fsl *reg = plat->reg; + + return _lpuart32_serial_init(reg); +} +#endif /* CONFIG_DM_SERIAL */ #endif
+#ifndef CONFIG_DM_SERIAL void lpuart_serial_initialize(void) { #ifdef CONFIG_LPUART_32B_REG @@ -281,3 +385,66 @@ __weak struct serial_device *default_serial_console(void) return &lpuart_serial_drv; #endif } +#else /* CONFIG_DM_SERIAL */ +static int lpuart_serial_ofdata_to_platdata(struct udevice *dev) +{ + struct lpuart_serial_platdata *plat = dev->platdata; + fdt_addr_t addr; + + addr = dev_get_addr(dev); + if (addr == FDT_ADDR_T_NONE) + return -EINVAL; + + plat->reg = (struct lpuart_fsl *)addr; + + return 0; +} + +#ifndef CONFIG_LPUART_32B_REG +static const struct dm_serial_ops lpuart_serial_ops = { + .putc = lpuart_serial_putc, + .pending = lpuart_serial_pending, + .getc = lpuart_serial_getc, + .setbrg = lpuart_serial_setbrg, +}; + +static const struct udevice_id lpuart_serial_ids[] = { + { .compatible = "fsl,vf610-lpuart" }, + { } +}; + +U_BOOT_DRIVER(serial_lpuart) = { + .name = "serial_lpuart", + .id = UCLASS_SERIAL, + .of_match = lpuart_serial_ids, + .ofdata_to_platdata = lpuart_serial_ofdata_to_platdata, + .platdata_auto_alloc_size = sizeof(struct lpuart_serial_platdata), + .probe = lpuart_serial_probe, + .ops = &lpuart_serial_ops, + .flags = DM_FLAG_PRE_RELOC, +}; +#else /* CONFIG_LPUART_32B_REG */ +static const struct dm_serial_ops lpuart32_serial_ops = { + .putc = lpuart32_serial_putc, + .pending = lpuart32_serial_pending, + .getc = lpuart32_serial_getc, + .setbrg = lpuart32_serial_setbrg, +}; + +static const struct udevice_id lpuart32_serial_ids[] = { + { .compatible = "fsl,ls1021a-lpuart" }, + { } +}; + +U_BOOT_DRIVER(serial_lpuart32) = { + .name = "serial_lpuart32", + .id = UCLASS_SERIAL, + .of_match = lpuart32_serial_ids, + .ofdata_to_platdata = lpuart_serial_ofdata_to_platdata, + .platdata_auto_alloc_size = sizeof(struct lpuart_serial_platdata), + .probe = lpuart32_serial_probe, + .ops = &lpuart32_serial_ops, + .flags = DM_FLAG_PRE_RELOC, +}; +#endif /* CONFIG_LPUART_32B_REG */ +#endif /* CONFIG_DM_SERIAL */