MIPS: Alchemy: Hook up IrDA on DB1000/DB1100

Add necessary transceiver control platform data and hook up the
IrDA peripheral on the DB1000 and DB1100 boards.

Signed-off-by: Manuel Lauss <manuel.lauss@googlemail.com>
To: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/2878/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

1 files changed, 57 insertions, 17 deletions

diff --git a/arch/mips/alchemy/devboards/db1000.c b/arch/mips/alchemy/devboards/db1000.c
index a3a448033037..5206d2fbe0c6 100644
--- a/arch/mips/alchemy/devboards/db1000.c
+++ b/arch/mips/alchemy/devboards/db1000.c
@@ -66,23 +66,6 @@ void __init board_setup(void)
                   DB1000_BCSR_PHYS_ADDR + DB1000_BCSR_HEXLED_OFS);
 
         printk(KERN_INFO "AMD Alchemy %s Board\n", board_type_str());
-
-#if defined(CONFIG_IRDA) && defined(CONFIG_AU1000_FIR)
-        {
-                u32 pin_func;
-
-                /* Set IRFIRSEL instead of GPIO15 */
-                pin_func = au_readl(SYS_PINFUNC) | SYS_PF_IRF;
-                au_writel(pin_func, SYS_PINFUNC);
-                /* Power off until the driver is in use */
-                bcsr_mod(BCSR_RESETS, BCSR_RESETS_IRDA_MODE_MASK,
-                         BCSR_RESETS_IRDA_MODE_OFF);
-        }
-#endif
-        bcsr_write(BCSR_PCMCIA, 0);     /* turn off PCMCIA power */
-
-        /* Enable GPIO[31:0] inputs */
-        alchemy_gpio1_input_enable();
 }
 
 
@@ -389,6 +372,57 @@ static struct platform_device db1100_mmc1_dev = {
         .resource       = au1100_mmc1_res,
 };
 
+/******************************************************************************/
+
+static void db1000_irda_set_phy_mode(int mode)
+{
+        unsigned short mask = BCSR_RESETS_IRDA_MODE_MASK | BCSR_RESETS_FIR_SEL;
+
+        switch (mode) {
+        case AU1000_IRDA_PHY_MODE_OFF:
+                bcsr_mod(BCSR_RESETS, mask, BCSR_RESETS_IRDA_MODE_OFF);
+                break;
+        case AU1000_IRDA_PHY_MODE_SIR:
+                bcsr_mod(BCSR_RESETS, mask, BCSR_RESETS_IRDA_MODE_FULL);
+                break;
+        case AU1000_IRDA_PHY_MODE_FIR:
+                bcsr_mod(BCSR_RESETS, mask, BCSR_RESETS_IRDA_MODE_FULL |
+                                            BCSR_RESETS_FIR_SEL);
+                break;
+        }
+}
+
+static struct au1k_irda_platform_data db1000_irda_platdata = {
+        .set_phy_mode   = db1000_irda_set_phy_mode,
+};
+
+static struct resource au1000_irda_res[] = {
+        [0] = {
+                .start  = AU1000_IRDA_PHYS_ADDR,
+                .end    = AU1000_IRDA_PHYS_ADDR + 0x0fff,
+                .flags  = IORESOURCE_MEM,
+        },
+        [1] = {
+                .start  = AU1000_IRDA_TX_INT,
+                .end    = AU1000_IRDA_TX_INT,
+                .flags  = IORESOURCE_IRQ,
+        },
+        [2] = {
+                .start  = AU1000_IRDA_RX_INT,
+                .end    = AU1000_IRDA_RX_INT,
+                .flags  = IORESOURCE_IRQ,
+        },
+};
+
+static struct platform_device db1000_irda_dev = {
+        .name   = "au1000-irda",
+        .id     = -1,
+        .dev    = {
+                .platform_data = &db1000_irda_platdata,
+        },
+        .resource       = au1000_irda_res,
+        .num_resources  = ARRAY_SIZE(au1000_irda_res),
+};
 
 static struct platform_device *db1x00_devs[] = {
         &db1x00_codec_dev,
@@ -397,10 +431,15 @@ static struct platform_device *db1x00_devs[] = {
         &db1x00_audio_dev,
 };
 
+static struct platform_device *db1000_devs[] = {
+        &db1000_irda_dev,
+};
+
 static struct platform_device *db1100_devs[] = {
         &au1100_lcd_device,
         &db1100_mmc0_dev,
         &db1100_mmc1_dev,
+        &db1000_irda_dev,
 };
 
 static int __init db1000_dev_init(void)
@@ -434,6 +473,7 @@ static int __init db1000_dev_init(void)
                 d1 = AU1000_GPIO3_INT;
                 s0 = AU1000_GPIO1_INT;
                 s1 = AU1000_GPIO4_INT;
+                platform_add_devices(db1000_devs, ARRAY_SIZE(db1000_devs));
         } else
                 return 0; /* unknown board, no further dev setup to do */