MIPS: Alchemy: MTX-1: Use linux gpio api.

Replace a few GPIO register accesses in the board init code with calls
to the gpio api.

Signed-off-by: Manuel Lauss <manuel.lauss@gmail.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

diff --git a/arch/mips/alchemy/mtx-1/board_setup.c b/arch/mips/alchemy/mtx-1/board_setup.c
index 8ed1ae1..cc32c69 100644 (file)
--- a/arch/mips/alchemy/mtx-1/board_setup.c
+++ b/arch/mips/alchemy/mtx-1/board_setup.c
@@ -28,6 +28,7 @@
  *  675 Mass Ave, Cambridge, MA 02139, USA.
  */
 
+#include <linux/gpio.h>
 #include <linux/init.h>
 
 #include <asm/mach-au1x00/au1000.h>
@@ -55,10 +56,11 @@ void __init board_setup(void)
        }
 #endif
 
+       alchemy_gpio2_enable();
+
 #if defined(CONFIG_USB_OHCI_HCD) || defined(CONFIG_USB_OHCI_HCD_MODULE)
        /* Enable USB power switch */
-       au_writel(au_readl(GPIO2_DIR) | 0x10, GPIO2_DIR);
-       au_writel(0x100000, GPIO2_OUTPUT);
+       alchemy_gpio_direction_output(204, 0);
 #endif /* defined(CONFIG_USB_OHCI_HCD) || defined(CONFIG_USB_OHCI_HCD_MODULE) */
 
 #ifdef CONFIG_PCI
@@ -74,14 +76,14 @@ void __init board_setup(void)
 
        /* Initialize GPIO */
        au_writel(0xFFFFFFFF, SYS_TRIOUTCLR);
-       au_writel(0x00000001, SYS_OUTPUTCLR); /* set M66EN (PCI 66MHz) to OFF */
-       au_writel(0x00000008, SYS_OUTPUTSET); /* set PCI CLKRUN# to OFF */
-       au_writel(0x00000002, SYS_OUTPUTSET); /* set EXT_IO3 ON */
-       au_writel(0x00000020, SYS_OUTPUTCLR); /* set eth PHY TX_ER to OFF */
+       alchemy_gpio_direction_output(0, 0);    /* Disable M66EN (PCI 66MHz) */
+       alchemy_gpio_direction_output(3, 1);    /* Disable PCI CLKRUN# */
+       alchemy_gpio_direction_output(1, 1);    /* Enable EXT_IO3 */
+       alchemy_gpio_direction_output(5, 0);    /* Disable eth PHY TX_ER */
 
        /* Enable LED and set it to green */
-       au_writel(au_readl(GPIO2_DIR) | 0x1800, GPIO2_DIR);
-       au_writel(0x18000800, GPIO2_OUTPUT);
+       alchemy_gpio_direction_output(211, 1);  /* green on */
+       alchemy_gpio_direction_output(212, 0);  /* red off */
 
        board_pci_idsel = mtx1_pci_idsel;
 
@@ -101,10 +103,10 @@ mtx1_pci_idsel(unsigned int devsel, int assert)
 
        if (assert && devsel != 0)
                /* Suppress signal to Cardbus */
-               au_writel(0x00000002, SYS_OUTPUTCLR); /* set EXT_IO3 OFF */
+               gpio_set_value(1, 0);   /* set EXT_IO3 OFF */
        else
-               au_writel(0x00000002, SYS_OUTPUTSET); /* set EXT_IO3 ON */
+               gpio_set_value(1, 1);   /* set EXT_IO3 ON */
+
        au_sync_udelay(1);
        return 1;
 }
-