1 #ifndef __GRLIB_APBUART_H__
2 #define __GRLIB_APBUART_H__
7 static int grlib_apbuart_port_nr
;
9 struct grlib_apbuart_regs_map
{
16 struct amba_prom_registers
{
17 unsigned int phys_addr
;
18 unsigned int reg_size
;
22 * The following defines the bits in the APBUART Status Registers.
24 #define UART_STATUS_DR 0x00000001 /* Data Ready */
25 #define UART_STATUS_TSE 0x00000002 /* TX Send Register Empty */
26 #define UART_STATUS_THE 0x00000004 /* TX Hold Register Empty */
27 #define UART_STATUS_BR 0x00000008 /* Break Error */
28 #define UART_STATUS_OE 0x00000010 /* RX Overrun Error */
29 #define UART_STATUS_PE 0x00000020 /* RX Parity Error */
30 #define UART_STATUS_FE 0x00000040 /* RX Framing Error */
31 #define UART_STATUS_ERR 0x00000078 /* Error Mask */
34 * The following defines the bits in the APBUART Ctrl Registers.
36 #define UART_CTRL_RE 0x00000001 /* Receiver enable */
37 #define UART_CTRL_TE 0x00000002 /* Transmitter enable */
38 #define UART_CTRL_RI 0x00000004 /* Receiver interrupt enable */
39 #define UART_CTRL_TI 0x00000008 /* Transmitter irq */
40 #define UART_CTRL_PS 0x00000010 /* Parity select */
41 #define UART_CTRL_PE 0x00000020 /* Parity enable */
42 #define UART_CTRL_FL 0x00000040 /* Flow control enable */
43 #define UART_CTRL_LB 0x00000080 /* Loopback enable */
45 #define APBBASE(port) ((struct grlib_apbuart_regs_map *)((port)->membase))
47 #define APBBASE_DATA_P(port) (&(APBBASE(port)->data))
48 #define APBBASE_STATUS_P(port) (&(APBBASE(port)->status))
49 #define APBBASE_CTRL_P(port) (&(APBBASE(port)->ctrl))
50 #define APBBASE_SCALAR_P(port) (&(APBBASE(port)->scaler))
52 #define UART_GET_CHAR(port) (__raw_readl(APBBASE_DATA_P(port)))
53 #define UART_PUT_CHAR(port, v) (__raw_writel(v, APBBASE_DATA_P(port)))
54 #define UART_GET_STATUS(port) (__raw_readl(APBBASE_STATUS_P(port)))
55 #define UART_PUT_STATUS(port, v)(__raw_writel(v, APBBASE_STATUS_P(port)))
56 #define UART_GET_CTRL(port) (__raw_readl(APBBASE_CTRL_P(port)))
57 #define UART_PUT_CTRL(port, v) (__raw_writel(v, APBBASE_CTRL_P(port)))
58 #define UART_GET_SCAL(port) (__raw_readl(APBBASE_SCALAR_P(port)))
59 #define UART_PUT_SCAL(port, v) (__raw_writel(v, APBBASE_SCALAR_P(port)))
61 #define UART_RX_DATA(s) (((s) & UART_STATUS_DR) != 0)
62 #define UART_TX_READY(s) (((s) & UART_STATUS_THE) != 0)
64 #endif /* __GRLIB_APBUART_H__ */
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