* include/linux/serial_reg.h
*
* Copyright (C) 1992, 1994 by Theodore Ts'o.
- *
- * Redistribution of this file is permitted under the terms of the GNU
+ *
+ * Redistribution of this file is permitted under the terms of the GNU
* Public License (GPL)
- *
+ *
* These are the UART port assignments, expressed as offsets from the base
* register. These assignments should hold for any serial port based on
* a 8250, 16450, or 16550(A).
* 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
#define UART_LCR 3 /* Out: Line Control Register */
/*
- * Note: if the word length is 5 bits (UART_LCR_WLEN5), then setting
+ * Note: if the word length is 5 bits (UART_LCR_WLEN5), then setting
* UART_LCR_STOP will select 1.5 stop bits, not 2 stop bits.
*/
#define UART_LCR_DLAB 0x80 /* Divisor latch access bit */
#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) */
+#define UART_MCR_HW_RTS 0x40 /* Enable hw control of RTS (Tegra UART) */
#define UART_MCR_XONANY 0x20 /* Enable Xon Any (TI16C752, EFR[4]=1) */
#define UART_MCR_AFE 0x20 /* Enable auto-RTS/CTS (TI16C550C/TI16C750) */
+#define UART_MCR_HW_CTS 0x20 /* Enable HW based CTS control (Tegra UART)*/
#define UART_MCR_LOOP 0x10 /* Enable loopback test mode */
#define UART_MCR_OUT2 0x08 /* Out2 complement */
#define UART_MCR_OUT1 0x04 /* Out1 complement */
#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 */
#define UART_IIR_TOD 0x08 /* Character Timeout Indication Detected */
-#define UART_FCR_PXAR1 0x00 /* receive FIFO treshold = 1 */
-#define UART_FCR_PXAR8 0x40 /* receive FIFO treshold = 8 */
-#define UART_FCR_PXAR16 0x80 /* receive FIFO treshold = 16 */
-#define UART_FCR_PXAR32 0xc0 /* receive FIFO treshold = 32 */
+#define UART_FCR_PXAR1 0x00 /* receive FIFO threshold = 1 */
+#define UART_FCR_PXAR8 0x40 /* receive FIFO threshold = 8 */
+#define UART_FCR_PXAR16 0x80 /* receive FIFO threshold = 16 */
+#define UART_FCR_PXAR32 0xc0 /* receive FIFO threshold = 32 */
+/*
+ * Intel MID on-chip HSU (High Speed UART) defined bits
+ */
+#define UART_FCR_HSU_64_1B 0x00 /* receive FIFO treshold = 1 */
+#define UART_FCR_HSU_64_16B 0x40 /* receive FIFO treshold = 16 */
+#define UART_FCR_HSU_64_32B 0x80 /* receive FIFO treshold = 32 */
+#define UART_FCR_HSU_64_56B 0xc0 /* receive FIFO treshold = 56 */
+
+#define UART_FCR_HSU_16_1B 0x00 /* receive FIFO treshold = 1 */
+#define UART_FCR_HSU_16_4B 0x40 /* receive FIFO treshold = 4 */
+#define UART_FCR_HSU_16_8B 0x80 /* receive FIFO treshold = 8 */
+#define UART_FCR_HSU_16_14B 0xc0 /* receive FIFO treshold = 14 */
+#define UART_FCR_HSU_64B_FIFO 0x20 /* chose 64 bytes FIFO */
+#define UART_FCR_HSU_16B_FIFO 0x00 /* chose 16 bytes FIFO */
+#define UART_FCR_HALF_EMPT_TXI 0x00 /* trigger TX_EMPT IRQ for half empty */
+#define UART_FCR_FULL_EMPT_TXI 0x08 /* trigger TX_EMPT IRQ for full empty */
/*
* These register definitions are for the 16C950
#define UART_OMAP_MVER 0x14 /* Module version register */
#define UART_OMAP_SYSC 0x15 /* System configuration register */
#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 */