1 files changed, 21 insertions, 0 deletions

diff --git a/include/linux/serial_reg.h b/include/linux/serial_reg.h
index c7a0ce11cd47..c75bda37c18e 100644
--- a/include/linux/serial_reg.h
+++ b/include/linux/serial_reg.h
@@ -57,6 +57,7 @@
  * ST16C654:     8  16  56  60           8  16  32  56  PORT_16654
  * TI16C750:     1  16  32  56          xx  xx  xx  xx  PORT_16750
  * TI16C752:     8  16  56  60           8  16  32  56
+ * Tegra:        1   4   8  14          16   8   4   1  PORT_TEGRA
  */
 #define UART_FCR_R_TRIG_00      0x00
 #define UART_FCR_R_TRIG_01      0x40
@@ -99,6 +100,13 @@
 #define UART_LCR_WLEN7          0x02 /* Wordlength: 7 bits */
 #define UART_LCR_WLEN8          0x03 /* Wordlength: 8 bits */
 
+/*
+ * Access to some registers depends on register access / configuration
+ * mode.
+ */
+#define UART_LCR_CONF_MODE_A    UART_LCR_DLAB   /* Configutation mode A */
+#define UART_LCR_CONF_MODE_B    0xBF            /* Configutation mode B */
+
 #define UART_MCR        4       /* Out: Modem Control Register */
 #define UART_MCR_CLKSEL         0x80 /* Divide clock by 4 (TI16C752, EFR[4]=1) */
 #define UART_MCR_TCRTLR         0x40 /* Access TCR/TLR (TI16C752, EFR[4]=1) */
@@ -111,6 +119,7 @@
 #define UART_MCR_DTR            0x01 /* DTR complement */
 
 #define UART_LSR        5       /* In:  Line Status Register */
+#define UART_LSR_FIFOE          0x80 /* Fifo error */
 #define UART_LSR_TEMT           0x40 /* Transmitter empty */
 #define UART_LSR_THRE           0x20 /* Transmit-hold-register empty */
 #define UART_LSR_BI             0x10 /* Break interrupt indicator */
@@ -341,5 +350,17 @@
 #define UART_OMAP_SYSS          0x16    /* System status register */
 #define UART_OMAP_WER           0x17    /* Wake-up enable register */
 
+/*
+ * These are the definitions for the MDR1 register
+ */
+#define UART_OMAP_MDR1_16X_MODE         0x00    /* UART 16x mode */
+#define UART_OMAP_MDR1_SIR_MODE         0x01    /* SIR mode */
+#define UART_OMAP_MDR1_16X_ABAUD_MODE   0x02    /* UART 16x auto-baud */
+#define UART_OMAP_MDR1_13X_MODE         0x03    /* UART 13x mode */
+#define UART_OMAP_MDR1_MIR_MODE         0x04    /* MIR mode */
+#define UART_OMAP_MDR1_FIR_MODE         0x05    /* FIR mode */
+#define UART_OMAP_MDR1_CIR_MODE         0x06    /* CIR mode */
+#define UART_OMAP_MDR1_DISABLE          0x07    /* Disable (default state) */
+
 #endif /* _LINUX_SERIAL_REG_H */