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serial: lpuart: Proper device identification

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Identify and distinguish between platform device type of MX7ULP
and LS1021A.

This is a fix to commit 7edf5c45("serial: lpuart: add i.MX7ULP
support").

Signed-off-by: Sriram Dash <sriram.dash@nxp.com>
Acked-by: Peng Fan <peng.fan@nxp.com>
Reviewed-by: York Sun <york.sun@nxp.com>
This commit is contained in:
Sriram Dash 2018-01-10 11:57:14 +05:30 committed by York Sun
parent b0ce187b1f
commit a2bbfc5480
1 changed files with 7 additions and 11 deletions
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18
drivers/serial/serial_lpuart.c
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@ -265,11 +265,9 @@ static int _lpuart32_serial_getc(struct lpuart_serial_platdata *plat)
lpuart_read32(plat->flags, &base->data, &val);
if (plat->devtype & DEV_MX7ULP) {
lpuart_read32(plat->flags, &base->stat, &stat);
if (stat & STAT_OR)
lpuart_write32(plat->flags, &base->stat, STAT_OR);
}
lpuart_read32(plat->flags, &base->stat, &stat);
if (stat & STAT_OR)
lpuart_write32(plat->flags, &base->stat, STAT_OR);
return val & 0x3ff;
}
@ -280,10 +278,8 @@ static void _lpuart32_serial_putc(struct lpuart_serial_platdata *plat,
struct lpuart_fsl_reg32 *base = plat->reg;
u32 stat;
if (plat->devtype & DEV_MX7ULP) {
if (c == '\n')
serial_putc('\r');
}
if (c == '\n')
serial_putc('\r');
while (true) {
lpuart_read32(plat->flags, &base->stat, &stat);
@ -330,7 +326,7 @@ static int _lpuart32_serial_init(struct lpuart_serial_platdata *plat)
lpuart_write32(plat->flags, &base->match, 0);
if (plat->devtype & DEV_MX7ULP) {
if (plat->devtype == DEV_MX7ULP) {
_lpuart32_serial_setbrg_7ulp(plat, gd->baudrate);
} else {
/* provide data bits, parity, stop bit, etc */
@ -347,7 +343,7 @@ static int lpuart_serial_setbrg(struct udevice *dev, int baudrate)
struct lpuart_serial_platdata *plat = dev->platdata;
if (is_lpuart32(dev)) {
if (plat->devtype & DEV_MX7ULP)
if (plat->devtype == DEV_MX7ULP)
_lpuart32_serial_setbrg_7ulp(plat, baudrate);
else
_lpuart32_serial_setbrg(plat, baudrate);