serial: sirf: enable ATLAS7 USP serial support
differentiate difference port types by re-defining the status MARCO
or putting HW differences into private data of the related ports.
Signed-off-by: Qipan Li <Qipan.Li@csr.com>
Signed-off-by: Barry Song <Baohua.Song@csr.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/drivers/tty/serial/sirfsoc_uart.h b/drivers/tty/serial/sirfsoc_uart.h
index af2f187..b49c23a 100644
--- a/drivers/tty/serial/sirfsoc_uart.h
+++ b/drivers/tty/serial/sirfsoc_uart.h
@@ -20,6 +20,7 @@
u32 sirfsoc_tx_rx_en;
u32 sirfsoc_int_en_reg;
u32 sirfsoc_int_st_reg;
+ u32 sirfsoc_int_en_clr_reg;
u32 sirfsoc_tx_dma_io_ctrl;
u32 sirfsoc_tx_dma_io_len;
u32 sirfsoc_tx_fifo_ctrl;
@@ -143,6 +144,7 @@
.sirfsoc_rx_fifo_op = 0x0130,
.sirfsoc_rx_fifo_status = 0x0134,
.sirfsoc_rx_fifo_data = 0x0138,
+ .sirfsoc_int_en_clr_reg = 0x140,
},
.uart_int_en = {
.sirfsoc_rx_done_en = BIT(0),
@@ -191,6 +193,7 @@
.sirfsoc_divisor = 0x0050,
.sirfsoc_int_en_reg = 0x0054,
.sirfsoc_int_st_reg = 0x0058,
+ .sirfsoc_int_en_clr_reg = 0x0060,
.sirfsoc_tx_dma_io_ctrl = 0x0100,
.sirfsoc_tx_dma_io_len = 0x0104,
.sirfsoc_tx_fifo_ctrl = 0x0108,
@@ -291,8 +294,6 @@
#define SIRFUART_IO_MODE BIT(0)
#define SIRFUART_DMA_MODE 0x0
-/* Macro Specific*/
-#define SIRFUART_INT_EN_CLR 0x0060
/* Baud Rate Calculation */
#define SIRF_USP_MIN_SAMPLE_DIV 0x1
#define SIRF_MIN_SAMPLE_DIV 0xf
@@ -326,34 +327,38 @@
#define SIRFSOC_UART_RX_TIMEOUT(br, to) (((br) * (((to) + 999) / 1000)) / 1000)
#define SIRFUART_RECV_TIMEOUT_VALUE(x) \
(((x) > 0xFFFF) ? 0xFFFF : ((x) & 0xFFFF))
-#define SIRFUART_RECV_TIMEOUT(port, x) \
- (((port)->line > 2) ? (x & 0xFFFF) : ((x) & 0xFFFF) << 16)
+#define SIRFUART_USP_RECV_TIMEOUT(x) (x & 0xFFFF)
+#define SIRFUART_UART_RECV_TIMEOUT(x) ((x & 0xFFFF) << 16)
#define SIRFUART_FIFO_THD(port) (port->fifosize >> 1)
-#define SIRFUART_ERR_INT_STAT(port, unit_st) \
+#define SIRFUART_ERR_INT_STAT(unit_st, uart_type) \
(uint_st->sirfsoc_rx_oflow | \
uint_st->sirfsoc_frm_err | \
uint_st->sirfsoc_rxd_brk | \
- ((port->line > 2) ? 0 : uint_st->sirfsoc_parity_err))
-#define SIRFUART_RX_IO_INT_EN(port, uint_en) \
- (uint_en->sirfsoc_rx_timeout_en |\
+ ((uart_type != SIRF_REAL_UART) ? \
+ 0 : uint_st->sirfsoc_parity_err))
+#define SIRFUART_RX_IO_INT_EN(uint_en, uart_type) \
+ (uint_en->sirfsoc_rx_done_en |\
uint_en->sirfsoc_rxfifo_thd_en |\
uint_en->sirfsoc_rxfifo_full_en |\
uint_en->sirfsoc_frm_err_en |\
uint_en->sirfsoc_rx_oflow_en |\
uint_en->sirfsoc_rxd_brk_en |\
- ((port->line > 2) ? 0 : uint_en->sirfsoc_parity_err_en))
+ ((uart_type != SIRF_REAL_UART) ? \
+ 0 : uint_en->sirfsoc_parity_err_en))
#define SIRFUART_RX_IO_INT_ST(uint_st) \
- (uint_st->sirfsoc_rx_timeout |\
- uint_st->sirfsoc_rxfifo_thd |\
- uint_st->sirfsoc_rxfifo_full)
+ (uint_st->sirfsoc_rxfifo_thd |\
+ uint_st->sirfsoc_rxfifo_full|\
+ uint_st->sirfsoc_rx_done |\
+ uint_st->sirfsoc_rx_timeout)
#define SIRFUART_CTS_INT_ST(uint_st) (uint_st->sirfsoc_cts)
-#define SIRFUART_RX_DMA_INT_EN(port, uint_en) \
+#define SIRFUART_RX_DMA_INT_EN(uint_en, uart_type) \
(uint_en->sirfsoc_rx_timeout_en |\
uint_en->sirfsoc_frm_err_en |\
uint_en->sirfsoc_rx_oflow_en |\
uint_en->sirfsoc_rxd_brk_en |\
- ((port->line > 2) ? 0 : uint_en->sirfsoc_parity_err_en))
+ ((uart_type != SIRF_REAL_UART) ? \
+ 0 : uint_en->sirfsoc_parity_err_en))
/* Generic Definitions */
#define SIRFSOC_UART_NAME "ttySiRF"
#define SIRFSOC_UART_MAJOR 0