Blackfin arch: Fix bug - Run "reboot" hangs bf518-ezbrd

[Mike Frysinger <vapier.adi@gmail.com>:
 - setup P_DEFAULT_BOOT_SPI_CS  for every arch based on
   the default bootrom behavior and convert all our boards
   to it
 - revert previous anomaly change ... bf51x is not affected
   by anomaly 05000353]

Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>

16 files changed, 19 insertions, 15 deletions

diff --git a/arch/blackfin/include/asm/reboot.h b/arch/blackfin/include/asm/reboot.h
index 4856d62..ae1e363 100644
--- a/arch/blackfin/include/asm/reboot.h
+++ b/arch/blackfin/include/asm/reboot.h
@@ -15,6 +15,6 @@ extern void native_machine_halt(void);
 extern void native_machine_power_off(void);
 
 /* common reboot workarounds */
-extern void bfin_gpio_reset_spi0_ssel1(void);
+extern void bfin_reset_boot_spi_cs(unsigned short pin);
 
 #endif
diff --git a/arch/blackfin/kernel/bfin_gpio.c b/arch/blackfin/kernel/bfin_gpio.c
index 7f69f43..44b6c9d 100644
--- a/arch/blackfin/kernel/bfin_gpio.c
+++ b/arch/blackfin/kernel/bfin_gpio.c
@@ -1172,10 +1172,9 @@ EXPORT_SYMBOL(bfin_gpio_get_value);
  * lives here as we need to force all the GPIO states w/out going through
  * BUG() checks and such.
  */
-void bfin_gpio_reset_spi0_ssel1(void)
+void bfin_reset_boot_spi_cs(unsigned short pin)
 {
-	u16 gpio = P_IDENT(P_SPI0_SSEL1);
-
+	unsigned short gpio = P_IDENT(pin);
 	port_setup(gpio, GPIO_USAGE);
 	gpio_array[gpio_bank(gpio)]->data_set = gpio_bit(gpio);
 	AWA_DUMMY_READ(data_set);
diff --git a/arch/blackfin/mach-bf518/boards/ezbrd.c b/arch/blackfin/mach-bf518/boards/ezbrd.c
index 15f1351..ee003f4 100644
--- a/arch/blackfin/mach-bf518/boards/ezbrd.c
+++ b/arch/blackfin/mach-bf518/boards/ezbrd.c
@@ -649,7 +649,7 @@ void native_machine_restart(char *cmd)
 {
 	/* workaround reboot hang when booting from SPI */
 	if ((bfin_read_SYSCR() & 0x7) == 0x3)
-		bfin_gpio_reset_spi0_ssel1();
+		bfin_reset_boot_spi_cs(P_DEFAULT_BOOT_SPI_CS);
 }
 
 void bfin_get_ether_addr(char *addr)
diff --git a/arch/blackfin/mach-bf518/include/mach/portmux.h b/arch/blackfin/mach-bf518/include/mach/portmux.h
index ac16d54..f618b48 100644
--- a/arch/blackfin/mach-bf518/include/mach/portmux.h
+++ b/arch/blackfin/mach-bf518/include/mach/portmux.h
@@ -103,6 +103,8 @@
 #define P_SPI1_SSEL4	(P_DEFINED | P_IDENT(GPIO_PF8) | P_FUNCT(2))
 #define P_SPI1_SSEL5	(P_DEFINED | P_IDENT(GPIO_PG11) | P_FUNCT(2))
 
+#define P_DEFAULT_BOOT_SPI_CS P_SPI0_SSEL2
+
 /* SPORT Port Mux */
 #define P_SPORT0_DRPRI	(P_DEFINED | P_IDENT(GPIO_PG3) | P_FUNCT(0))
 #define P_SPORT0_RSCLK	(P_DEFINED | P_IDENT(GPIO_PG4) | P_FUNCT(0))
diff --git a/arch/blackfin/mach-bf527/boards/cm_bf527.c b/arch/blackfin/mach-bf527/boards/cm_bf527.c
index a2c3578..0281159 100644
--- a/arch/blackfin/mach-bf527/boards/cm_bf527.c
+++ b/arch/blackfin/mach-bf527/boards/cm_bf527.c
@@ -988,7 +988,7 @@ void native_machine_restart(char *cmd)
 {
 	/* workaround reboot hang when booting from SPI */
 	if ((bfin_read_SYSCR() & 0x7) == 0x3)
-		bfin_gpio_reset_spi0_ssel1();
+		bfin_reset_boot_spi_cs(P_DEFAULT_BOOT_SPI_CS);
 }
 
 void bfin_get_ether_addr(char *addr)
diff --git a/arch/blackfin/mach-bf527/boards/ezbrd.c b/arch/blackfin/mach-bf527/boards/ezbrd.c
index 0314bd3..521b253 100644
--- a/arch/blackfin/mach-bf527/boards/ezbrd.c
+++ b/arch/blackfin/mach-bf527/boards/ezbrd.c
@@ -784,7 +784,7 @@ void native_machine_restart(char *cmd)
 {
 	/* workaround reboot hang when booting from SPI */
 	if ((bfin_read_SYSCR() & 0x7) == 0x3)
-		bfin_gpio_reset_spi0_ssel1();
+		bfin_reset_boot_spi_cs(P_DEFAULT_BOOT_SPI_CS);
 }
 
 void bfin_get_ether_addr(char *addr)
diff --git a/arch/blackfin/mach-bf527/boards/ezkit.c b/arch/blackfin/mach-bf527/boards/ezkit.c
index 9454fb7..60fd974 100644
--- a/arch/blackfin/mach-bf527/boards/ezkit.c
+++ b/arch/blackfin/mach-bf527/boards/ezkit.c
@@ -1068,7 +1068,7 @@ void native_machine_restart(char *cmd)
 {
 	/* workaround reboot hang when booting from SPI */
 	if ((bfin_read_SYSCR() & 0x7) == 0x3)
-		bfin_gpio_reset_spi0_ssel1();
+		bfin_reset_boot_spi_cs(P_DEFAULT_BOOT_SPI_CS);
 }
 
 void bfin_get_ether_addr(char *addr)
diff --git a/arch/blackfin/mach-bf527/include/mach/portmux.h b/arch/blackfin/mach-bf527/include/mach/portmux.h
index 7f6da2c3..72b1652 100644
--- a/arch/blackfin/mach-bf527/include/mach/portmux.h
+++ b/arch/blackfin/mach-bf527/include/mach/portmux.h
@@ -73,6 +73,8 @@
 
 #define P_HWAIT		(P_DONTCARE)
 
+#define P_DEFAULT_BOOT_SPI_CS P_SPI0_SSEL1
+
 #define P_SPI0_SS	(P_DEFINED | P_IDENT(GPIO_PG1) | P_FUNCT(0))
 #define P_SPI0_SSEL1	(P_DEFINED | P_IDENT(GPIO_PG1) | P_FUNCT(2))
 #define P_SPI0_SCK	(P_DEFINED | P_IDENT(GPIO_PG2) | P_FUNCT(2))
diff --git a/arch/blackfin/mach-bf533/include/mach/portmux.h b/arch/blackfin/mach-bf533/include/mach/portmux.h
index 685a265..2f59ce0 100644
--- a/arch/blackfin/mach-bf533/include/mach/portmux.h
+++ b/arch/blackfin/mach-bf533/include/mach/portmux.h
@@ -54,14 +54,11 @@
 #define P_SPI0_SSEL2	(P_DEFINED | P_IDENT(GPIO_PF2))
 #define P_SPI0_SSEL1	(P_DEFINED | P_IDENT(GPIO_PF1))
 #define P_SPI0_SS	(P_DEFINED | P_IDENT(GPIO_PF0))
+#define P_DEFAULT_BOOT_SPI_CS P_SPI0_SSEL2
 
 #define P_TMR2		(P_DONTCARE)
 #define P_TMR1		(P_DONTCARE)
 #define P_TMR0		(P_DONTCARE)
 #define P_TMRCLK	(P_DEFINED | P_IDENT(GPIO_PF1))
 
-
-
-
-
 #endif /* _MACH_PORTMUX_H_ */
diff --git a/arch/blackfin/mach-bf537/boards/generic_board.c b/arch/blackfin/mach-bf537/boards/generic_board.c
index dd6e6bf..d12ddf1 100644
--- a/arch/blackfin/mach-bf537/boards/generic_board.c
+++ b/arch/blackfin/mach-bf537/boards/generic_board.c
@@ -726,7 +726,7 @@ void native_machine_restart(char *cmd)
 {
 	/* workaround reboot hang when booting from SPI */
 	if ((bfin_read_SYSCR() & 0x7) == 0x3)
-		bfin_gpio_reset_spi0_ssel1();
+		bfin_reset_boot_spi_cs(P_DEFAULT_BOOT_SPI_CS);
 }
 
 #if defined(CONFIG_BFIN_MAC) || defined(CONFIG_BFIN_MAC_MODULE)
diff --git a/arch/blackfin/mach-bf537/boards/minotaur.c b/arch/blackfin/mach-bf537/boards/minotaur.c
index bb79534..8f36d26 100644
--- a/arch/blackfin/mach-bf537/boards/minotaur.c
+++ b/arch/blackfin/mach-bf537/boards/minotaur.c
@@ -377,5 +377,5 @@ void native_machine_restart(char *cmd)
 {
 	/* workaround reboot hang when booting from SPI */
 	if ((bfin_read_SYSCR() & 0x7) == 0x3)
-		bfin_gpio_reset_spi0_ssel1();
+		bfin_reset_boot_spi_cs(P_DEFAULT_BOOT_SPI_CS);
 }
diff --git a/arch/blackfin/mach-bf537/boards/stamp.c b/arch/blackfin/mach-bf537/boards/stamp.c
index d812e25..447d6d4 100644
--- a/arch/blackfin/mach-bf537/boards/stamp.c
+++ b/arch/blackfin/mach-bf537/boards/stamp.c
@@ -1307,7 +1307,7 @@ void native_machine_restart(char *cmd)
 {
 	/* workaround reboot hang when booting from SPI */
 	if ((bfin_read_SYSCR() & 0x7) == 0x3)
-		bfin_gpio_reset_spi0_ssel1();
+		bfin_reset_boot_spi_cs(P_DEFAULT_BOOT_SPI_CS);
 }
 
 /*
diff --git a/arch/blackfin/mach-bf537/include/mach/portmux.h b/arch/blackfin/mach-bf537/include/mach/portmux.h
index 78fee6e..87285e7 100644
--- a/arch/blackfin/mach-bf537/include/mach/portmux.h
+++ b/arch/blackfin/mach-bf537/include/mach/portmux.h
@@ -31,6 +31,7 @@
 #define P_PPI0_FS1	(P_DEFINED | P_IDENT(GPIO_PF9) | P_FUNCT(1))
 #define P_TACLK0	(P_DEFINED | P_IDENT(GPIO_PF14) | P_FUNCT(1))
 #define P_TMRCLK	(P_DEFINED | P_IDENT(GPIO_PF15) | P_FUNCT(1))
+#define P_DEFAULT_BOOT_SPI_CS P_SPI0_SSEL1
 
 #define P_PPI0_D0	(P_DEFINED | P_IDENT(GPIO_PG0) | P_FUNCT(0))
 #define P_PPI0_D1	(P_DEFINED | P_IDENT(GPIO_PG1) | P_FUNCT(0))
diff --git a/arch/blackfin/mach-bf538/include/mach/portmux.h b/arch/blackfin/mach-bf538/include/mach/portmux.h
index 1e031b5..c8db264 100644
--- a/arch/blackfin/mach-bf538/include/mach/portmux.h
+++ b/arch/blackfin/mach-bf538/include/mach/portmux.h
@@ -102,5 +102,6 @@
 #define P_SPI0_SSEL2	(P_DEFINED | P_IDENT(GPIO_PF2))
 #define P_SPI0_SSEL1	(P_DEFINED | P_IDENT(GPIO_PF1))
 #define P_SPI0_SS	(P_DEFINED | P_IDENT(GPIO_PF0))
+#define P_DEFAULT_BOOT_SPI_CS P_SPI0_SSEL2
 
 #endif /* _MACH_PORTMUX_H_ */
diff --git a/arch/blackfin/mach-bf548/include/mach/portmux.h b/arch/blackfin/mach-bf548/include/mach/portmux.h
index 8177a56..ffb1d0a 100644
--- a/arch/blackfin/mach-bf548/include/mach/portmux.h
+++ b/arch/blackfin/mach-bf548/include/mach/portmux.h
@@ -125,6 +125,7 @@
 #define P_KEY_COL2	(P_DEFINED | P_IDENT(GPIO_PD14) | P_FUNCT(3))
 #define P_KEY_COL3	(P_DEFINED | P_IDENT(GPIO_PD15) | P_FUNCT(3))
 
+#define P_DEFAULT_BOOT_SPI_CS P_SPI0_SSEL1
 #define P_SPI0_SCK	(P_DEFINED | P_IDENT(GPIO_PE0) | P_FUNCT(0))
 #define P_SPI0_MISO	(P_DEFINED | P_IDENT(GPIO_PE1) | P_FUNCT(0))
 #define P_SPI0_MOSI	(P_DEFINED | P_IDENT(GPIO_PE2) | P_FUNCT(0))
diff --git a/arch/blackfin/mach-bf561/include/mach/portmux.h b/arch/blackfin/mach-bf561/include/mach/portmux.h
index a6ee820..2e5ad63 100644
--- a/arch/blackfin/mach-bf561/include/mach/portmux.h
+++ b/arch/blackfin/mach-bf561/include/mach/portmux.h
@@ -85,5 +85,6 @@
 #define P_SPI0_MOSI	(P_DONTCARE)
 #define P_SPI0_MISO	(P_DONTCARE)
 #define P_SPI0_SCK	(P_DONTCARE)
+#define P_DEFAULT_BOOT_SPI_CS P_SPI0_SSEL2
 
 #endif /* _MACH_PORTMUX_H_ */