Blackfin: bf533: convert boards to gpio framework

We don't want people banging on MMRs directly.  As for the ip0x board,
it shouldn't need to muck with the CS pin directly as the Blackfin SPI
bus master driver takes care of driving this.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>

arch/blackfin/mach-bf533/boards/blackstamp.c

@@ -25,7 +25,6 @@
 #include <asm/bfin5xx_spi.h>
 #include <asm/portmux.h>
 #include <asm/dpmc.h>
-#include <mach/fio_flag.h>
 
 /*
  * Name the Board for the /proc/cpuinfo
@@ -476,10 +475,16 @@ static int __init blackstamp_init(void)
 		return ret;
 
 #if defined(CONFIG_SMC91X) || defined(CONFIG_SMC91X_MODULE)
-	/* setup BF533_STAMP CPLD to route AMS3 to Ethernet MAC */
-	bfin_write_FIO_DIR(bfin_read_FIO_DIR() | PF0);
-	bfin_write_FIO_FLAG_S(PF0);
-	SSYNC();
+	/*
+	 * setup BF533_STAMP CPLD to route AMS3 to Ethernet MAC.
+	 * the bfin-async-map driver takes care of flipping between
+	 * flash and ethernet when necessary.
+	 */
+	ret = gpio_request(GPIO_PF0, "enet_cpld");
+	if (!ret) {
+		gpio_direction_output(GPIO_PF0, 1);
+		gpio_free(GPIO_PF0);
+	}
 #endif
 
 	spi_register_board_info(bfin_spi_board_info, ARRAY_SIZE(bfin_spi_board_info));

arch/blackfin/mach-bf533/boards/ip0x.c

@@ -22,7 +22,6 @@
 #include <asm/dma.h>
 #include <asm/bfin5xx_spi.h>
 #include <asm/portmux.h>
-#include <mach/fio_flag.h>
 
 /*
  * Name the Board for the /proc/cpuinfo
@@ -295,15 +294,7 @@ static int __init ip0x_init(void)
 	printk(KERN_INFO "%s(): registering device resources\n", __func__);
 	platform_add_devices(ip0x_devices, ARRAY_SIZE(ip0x_devices));
 
-#if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE)
-	for (i = 0; i < ARRAY_SIZE(bfin_spi_board_info); ++i) {
-		int j = 1 << bfin_spi_board_info[i].chip_select;
-		/* set spi cs to 1 */
-		bfin_write_FIO_DIR(bfin_read_FIO_DIR() | j);
-		bfin_write_FIO_FLAG_S(j);
-	}
 	spi_register_board_info(bfin_spi_board_info, ARRAY_SIZE(bfin_spi_board_info));
-#endif
 
 	return 0;
 }

arch/blackfin/mach-bf533/boards/stamp.c

@@ -24,7 +24,6 @@
 #include <asm/reboot.h>
 #include <asm/portmux.h>
 #include <asm/dpmc.h>
-#include <mach/fio_flag.h>
 
 /*
  * Name the Board for the /proc/cpuinfo
@@ -674,10 +673,16 @@ static int __init stamp_init(void)
 		return ret;
 
 #if defined(CONFIG_SMC91X) || defined(CONFIG_SMC91X_MODULE)
-	/* setup BF533_STAMP CPLD to route AMS3 to Ethernet MAC */
-	bfin_write_FIO_DIR(bfin_read_FIO_DIR() | PF0);
-	bfin_write_FIO_FLAG_S(PF0);
-	SSYNC();
+	/*
+	 * setup BF533_STAMP CPLD to route AMS3 to Ethernet MAC.
+	 * the bfin-async-map driver takes care of flipping between
+	 * flash and ethernet when necessary.
+	 */
+	ret = gpio_request(GPIO_PF0, "enet_cpld");
+	if (!ret) {
+		gpio_direction_output(GPIO_PF0, 1);
+		gpio_free(GPIO_PF0);
+	}
 #endif
 
 	spi_register_board_info(bfin_spi_board_info, ARRAY_SIZE(bfin_spi_board_info));
@@ -713,7 +718,6 @@ void __init native_machine_early_platform_add_devices(void)
 void native_machine_restart(char *cmd)
 {
 	/* workaround pull up on cpld / flash pin not being strong enough */
-	bfin_write_FIO_INEN(~PF0);
-	bfin_write_FIO_DIR(PF0);
-	bfin_write_FIO_FLAG_C(PF0);
+	gpio_request(GPIO_PF0, "flash_cpld");
+	gpio_direction_output(GPIO_PF0, 0);
 }