static void omap_serial_fill_features_erratas(struct uart_omap_port *up)
{
u32 mvr, scheme;
u16 revision, major, minor;
printk(".................omap_serial_fill_feature_erratas\n");
mvr = serial_in(up, UART_OMAP_MVER);//* Module version register */
/* Check revision register scheme */
scheme = mvr >> OMAP_UART_MVR_SCHEME_SHIFT;
switch (scheme)
{
case 0: /* Legacy Scheme: OMAP2/3 */
/* MINOR_REV[0:4], MAJOR_REV[4:7] */
major = (mvr & OMAP_UART_LEGACY_MVR_MAJ_MASK) >> OMAP_UART_LEGACY_MVR_MAJ_SHIFT;
minor = (mvr & OMAP_UART_LEGACY_MVR_MIN_MASK);
printk("case_0\n");
break;
case 1:
/* New Scheme: OMAP4+ */
/* MINOR_REV[0:5], MAJOR_REV[8:10] */
major = (mvr & OMAP_UART_MVR_MAJ_MASK) >>
OMAP_UART_MVR_MAJ_SHIFT;
minor = (mvr & OMAP_UART_MVR_MIN_MASK);
printk("case_1\n");
break;
default:
dev_warn(up->dev,"Unknown %s revision, defaulting to highest\n",up->name);
/* highest possible revision */
major = 0xff;
minor = 0xff;
printk("default\n");
}
/* normalize revision for the driver */
revision = UART_BUILD_REVISION(major, minor);
switch (revision)
{
case OMAP_UART_REV_46:
printk("revision number: OMAP_UART_REV_46\n");
up->errata |= (UART_ERRATA_i202_MDR1_ACCESS | UART_ERRATA_i291_DMA_FORCEIDLE);
break;
case OMAP_UART_REV_52:
printk("revision number: OMAP_UART_REV_52\n");
up->errata |= (UART_ERRATA_i202_MDR1_ACCESS | UART_ERRATA_i291_DMA_FORCEIDLE);
break;
case OMAP_UART_REV_63:
printk("revision number: OMAP_UART_REV_63\n");
up->errata |= UART_ERRATA_i202_MDR1_ACCESS;
break;
default:
break;
}
printk("................omap_serial_fill_feature_erratas end\n");
}
static void omap_serial_fill_features_erratas(struct uart_omap_port *up)
{
u32 mvr, scheme;
u16 revision, major, minor;
mvr = readl(up->port.membase + (UART_OMAP_MVER << up->port.regshift));
/* Check revision register scheme */
scheme = mvr >> OMAP_UART_MVR_SCHEME_SHIFT;
switch (scheme) {
case 0: /* Legacy Scheme: OMAP2/3 */
/* MINOR_REV[0:4], MAJOR_REV[4:7] */
major = (mvr & OMAP_UART_LEGACY_MVR_MAJ_MASK) >>
OMAP_UART_LEGACY_MVR_MAJ_SHIFT;
minor = (mvr & OMAP_UART_LEGACY_MVR_MIN_MASK);
break;
case 1:
/* New Scheme: OMAP4+ */
/* MINOR_REV[0:5], MAJOR_REV[8:10] */
major = (mvr & OMAP_UART_MVR_MAJ_MASK) >>
OMAP_UART_MVR_MAJ_SHIFT;
minor = (mvr & OMAP_UART_MVR_MIN_MASK);
break;
default:
dev_warn(up->dev,
"Unknown %s revision, defaulting to highest\n",
up->name);
/* highest possible revision */
major = 0xff;
minor = 0xff;
}
/* normalize revision for the driver */
revision = UART_BUILD_REVISION(major, minor);
switch (revision) {
case OMAP_UART_REV_46:
up->errata |= (UART_ERRATA_i202_MDR1_ACCESS |
UART_ERRATA_i291_DMA_FORCEIDLE);
break;
case OMAP_UART_REV_52:
up->errata |= (UART_ERRATA_i202_MDR1_ACCESS |
UART_ERRATA_i291_DMA_FORCEIDLE);
up->features |= OMAP_UART_WER_HAS_TX_WAKEUP;
break;
case OMAP_UART_REV_63:
up->errata |= UART_ERRATA_i202_MDR1_ACCESS;
up->features |= OMAP_UART_WER_HAS_TX_WAKEUP;
break;
default:
break;
}
}
static void omap_serial_fill_features_erratas(struct uart_8250_port *up,
struct omap8250_priv *priv)
{
u32 mvr, scheme;
u16 revision, major, minor;
mvr = uart_read(up, UART_OMAP_MVER);
/* Check revision register scheme */
scheme = mvr >> OMAP_UART_MVR_SCHEME_SHIFT;
switch (scheme) {
case 0: /* Legacy Scheme: OMAP2/3 */
/* MINOR_REV[0:4], MAJOR_REV[4:7] */
major = (mvr & OMAP_UART_LEGACY_MVR_MAJ_MASK) >>
OMAP_UART_LEGACY_MVR_MAJ_SHIFT;
minor = (mvr & OMAP_UART_LEGACY_MVR_MIN_MASK);
break;
case 1:
/* New Scheme: OMAP4+ */
/* MINOR_REV[0:5], MAJOR_REV[8:10] */
major = (mvr & OMAP_UART_MVR_MAJ_MASK) >>
OMAP_UART_MVR_MAJ_SHIFT;
minor = (mvr & OMAP_UART_MVR_MIN_MASK);
break;
default:
dev_warn(up->port.dev,
"Unknown revision, defaulting to highest\n");
/* highest possible revision */
major = 0xff;
minor = 0xff;
}
/* normalize revision for the driver */
revision = UART_BUILD_REVISION(major, minor);
switch (revision) {
case OMAP_UART_REV_46:
priv->habit = UART_ERRATA_i202_MDR1_ACCESS;
break;
case OMAP_UART_REV_52:
priv->habit = UART_ERRATA_i202_MDR1_ACCESS |
OMAP_UART_WER_HAS_TX_WAKEUP;
break;
case OMAP_UART_REV_63:
priv->habit = UART_ERRATA_i202_MDR1_ACCESS |
OMAP_UART_WER_HAS_TX_WAKEUP;
break;
default:
break;
}
}
