net/irda: convert au1k_ir to platform driver.

Moderate driver cleanup:
convert to platform driver, get rid of board-specific code.

Driver loads and runs on a DB1100 board.  But since I have no other
IrDA hardware to exchange data with I can't say whether it really sends
and receives.

Signed-off-by: Manuel Lauss <manuel.lauss@googlemail.com>
Cc: Samuel Ortiz <samuel@sortiz.org>
Cc: netdev@vger.kernel.org
To: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/2877/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

1 files changed, 14 insertions, 38 deletions

diff --git a/arch/mips/include/asm/mach-au1x00/au1000.h b/arch/mips/include/asm/mach-au1x00/au1000.h
index 65f126217175..569828d3ccab 100644
--- a/arch/mips/include/asm/mach-au1x00/au1000.h
+++ b/arch/mips/include/asm/mach-au1x00/au1000.h
@@ -1265,44 +1265,20 @@ enum soc_au1200_ints {
 #define SSI_ENABLE_CD           (1 << 1)
 #define SSI_ENABLE_E            (1 << 0)
 
-/* IrDA Controller */
-#define IRDA_BASE               0xB0300000
-#define IR_RING_PTR_STATUS      (IRDA_BASE + 0x00)
-#define IR_RING_BASE_ADDR_H     (IRDA_BASE + 0x04)
-#define IR_RING_BASE_ADDR_L     (IRDA_BASE + 0x08)
-#define IR_RING_SIZE            (IRDA_BASE + 0x0C)
-#define IR_RING_PROMPT          (IRDA_BASE + 0x10)
-#define IR_RING_ADDR_CMPR       (IRDA_BASE + 0x14)
-#define IR_INT_CLEAR            (IRDA_BASE + 0x18)
-#define IR_CONFIG_1             (IRDA_BASE + 0x20)
-#  define IR_RX_INVERT_LED      (1 << 0)
-#  define IR_TX_INVERT_LED      (1 << 1)
-#  define IR_ST                 (1 << 2)
-#  define IR_SF                 (1 << 3)
-#  define IR_SIR                (1 << 4)
-#  define IR_MIR                (1 << 5)
-#  define IR_FIR                (1 << 6)
-#  define IR_16CRC              (1 << 7)
-#  define IR_TD                 (1 << 8)
-#  define IR_RX_ALL             (1 << 9)
-#  define IR_DMA_ENABLE         (1 << 10)
-#  define IR_RX_ENABLE          (1 << 11)
-#  define IR_TX_ENABLE          (1 << 12)
-#  define IR_LOOPBACK           (1 << 14)
-#  define IR_SIR_MODE           (IR_SIR | IR_DMA_ENABLE | \
-                                 IR_RX_ALL | IR_RX_ENABLE | IR_SF | IR_16CRC)
-#define IR_SIR_FLAGS            (IRDA_BASE + 0x24)
-#define IR_ENABLE               (IRDA_BASE + 0x28)
-#  define IR_RX_STATUS          (1 << 9)
-#  define IR_TX_STATUS          (1 << 10)
-#define IR_READ_PHY_CONFIG      (IRDA_BASE + 0x2C)
-#define IR_WRITE_PHY_CONFIG     (IRDA_BASE + 0x30)
-#define IR_MAX_PKT_LEN          (IRDA_BASE + 0x34)
-#define IR_RX_BYTE_CNT          (IRDA_BASE + 0x38)
-#define IR_CONFIG_2             (IRDA_BASE + 0x3C)
-#  define IR_MODE_INV           (1 << 0)
-#  define IR_ONE_PIN            (1 << 1)
-#define IR_INTERFACE_CONFIG     (IRDA_BASE + 0x40)
+
+/*
+ * The IrDA peripheral has an IRFIRSEL pin, but on the DB/PB boards it's not
+ * used to select FIR/SIR mode on the transceiver but as a GPIO.  Instead a
+ * CPLD has to be told about the mode.
+ */
+#define AU1000_IRDA_PHY_MODE_OFF        0
+#define AU1000_IRDA_PHY_MODE_SIR        1
+#define AU1000_IRDA_PHY_MODE_FIR        2
+
+struct au1k_irda_platform_data {
+        void(*set_phy_mode)(int mode);
+};
+
 
 /* GPIO */
 #define SYS_PINFUNC             0xB190002C