nios2: divide nios2-io.h into each specific drivers and remove it

The nios2-io.h defines hardware registers and bits of several FPGA
IP cores. It could be divided in to the specific drivers, including
altera timer, altera sysid, altera uart and altera jtag uart. The
altera pio and altera spi drivers use their own hardware definitions.
The removal of nios2-io.h will help modularity and maintenance.

Signed-off-by: Thomas Chou <thomas@wytron.com.tw>

2 files changed, 57 insertions, 2 deletions

diff --git a/drivers/serial/altera_jtag_uart.c b/drivers/serial/altera_jtag_uart.c
index 0573c7a..9a81402 100644
--- a/drivers/serial/altera_jtag_uart.c
+++ b/drivers/serial/altera_jtag_uart.c
@@ -8,10 +8,28 @@
 #include <common.h>
 #include <watchdog.h>
 #include <asm/io.h>
-#include <nios2-io.h>
 #include <linux/compiler.h>
 #include <serial.h>
 
+typedef volatile struct {
+	unsigned	data;			/* Data register */
+	unsigned	control;		/* Control register */
+} nios_jtag_t;
+
+/* data register */
+#define NIOS_JTAG_RVALID	(1<<15)		/* Read valid */
+#define NIOS_JTAG_DATA(d)	((d)&0x0ff)	/* Read data */
+#define NIOS_JTAG_RAVAIL(d)	((d)>>16)	/* Read space avail */
+
+/* control register */
+#define NIOS_JTAG_RE		(1 << 0)	/* read intr enable */
+#define NIOS_JTAG_WE		(1 << 1)	/* write intr enable */
+#define NIOS_JTAG_RI		(1 << 8)	/* read intr pending */
+#define NIOS_JTAG_WI		(1 << 9)	/* write intr pending*/
+#define NIOS_JTAG_AC		(1 << 10)	/* activity indicator */
+#define NIOS_JTAG_RRDY		(1 << 12)	/* read available */
+#define NIOS_JTAG_WSPACE(d)	((d)>>16)	/* Write space avail */
+
 DECLARE_GLOBAL_DATA_PTR;
 
 /*------------------------------------------------------------------
diff --git a/drivers/serial/altera_uart.c b/drivers/serial/altera_uart.c
index d620528..d6b1484 100644
--- a/drivers/serial/altera_uart.c
+++ b/drivers/serial/altera_uart.c
@@ -9,10 +9,47 @@
 #include <common.h>
 #include <watchdog.h>
 #include <asm/io.h>
-#include <nios2-io.h>
 #include <linux/compiler.h>
 #include <serial.h>
 
+typedef volatile struct {
+	unsigned	rxdata;		/* Rx data reg */
+	unsigned	txdata;		/* Tx data reg */
+	unsigned	status;		/* Status reg */
+	unsigned	control;	/* Control reg */
+	unsigned	divisor;	/* Baud rate divisor reg */
+	unsigned	endofpacket;	/* End-of-packet reg */
+} nios_uart_t;
+
+/* status register */
+#define NIOS_UART_PE		(1 << 0)	/* parity error */
+#define NIOS_UART_FE		(1 << 1)	/* frame error */
+#define NIOS_UART_BRK		(1 << 2)	/* break detect */
+#define NIOS_UART_ROE		(1 << 3)	/* rx overrun */
+#define NIOS_UART_TOE		(1 << 4)	/* tx overrun */
+#define NIOS_UART_TMT		(1 << 5)	/* tx empty */
+#define NIOS_UART_TRDY		(1 << 6)	/* tx ready */
+#define NIOS_UART_RRDY		(1 << 7)	/* rx ready */
+#define NIOS_UART_E		(1 << 8)	/* exception */
+#define NIOS_UART_DCTS		(1 << 10)	/* cts change */
+#define NIOS_UART_CTS		(1 << 11)	/* cts */
+#define NIOS_UART_EOP		(1 << 12)	/* eop detected */
+
+/* control register */
+#define NIOS_UART_IPE		(1 << 0)	/* parity error int ena*/
+#define NIOS_UART_IFE		(1 << 1)	/* frame error int ena */
+#define NIOS_UART_IBRK		(1 << 2)	/* break detect int ena */
+#define NIOS_UART_IROE		(1 << 3)	/* rx overrun int ena */
+#define NIOS_UART_ITOE		(1 << 4)	/* tx overrun int ena */
+#define NIOS_UART_ITMT		(1 << 5)	/* tx empty int ena */
+#define NIOS_UART_ITRDY		(1 << 6)	/* tx ready int ena */
+#define NIOS_UART_IRRDY		(1 << 7)	/* rx ready int ena */
+#define NIOS_UART_IE		(1 << 8)	/* exception int ena */
+#define NIOS_UART_TBRK		(1 << 9)	/* transmit break */
+#define NIOS_UART_IDCTS		(1 << 10)	/* cts change int ena */
+#define NIOS_UART_RTS		(1 << 11)	/* rts */
+#define NIOS_UART_IEOP		(1 << 12)	/* eop detected int ena */
+
 DECLARE_GLOBAL_DATA_PTR;
 
 /*------------------------------------------------------------------