From: Michael Hennerich <[email protected]>
Signed-off-by: Michael Hennerich <[email protected]>
Signed-off-by: Bryan Wu <[email protected]>
---
arch/blackfin/kernel/bfin_gpio.c | 19 +++++++++------
include/asm-blackfin/mach-bf537/portmux.h | 35 ++++++++++++++++++++++++++++-
2 files changed, 45 insertions(+), 9 deletions(-)
diff --git a/arch/blackfin/kernel/bfin_gpio.c b/arch/blackfin/kernel/bfin_gpio.c
index 9f30948..5d488ef 100644
--- a/arch/blackfin/kernel/bfin_gpio.c
+++ b/arch/blackfin/kernel/bfin_gpio.c
@@ -180,11 +180,13 @@ static int cmp_label(unsigned short ident, const char *label)
#ifdef BF537_FAMILY
static void port_setup(unsigned short gpio, unsigned short usage)
{
- if (usage == GPIO_USAGE) {
- *port_fer[gpio_bank(gpio)] &= ~gpio_bit(gpio);
- } else
- *port_fer[gpio_bank(gpio)] |= gpio_bit(gpio);
- SSYNC();
+ if (!check_gpio(gpio)) {
+ if (usage == GPIO_USAGE) {
+ *port_fer[gpio_bank(gpio)] &= ~gpio_bit(gpio);
+ } else
+ *port_fer[gpio_bank(gpio)] |= gpio_bit(gpio);
+ SSYNC();
+ }
}
#else
# define port_setup(...) do { } while (0)
@@ -644,11 +646,10 @@ int peripheral_request(unsigned short per, const char *label)
if (!(per & P_DEFINED))
return -ENODEV;
- if (check_gpio(ident) < 0)
- return -EINVAL;
-
local_irq_save(flags);
+ if (!check_gpio(ident)) {
+
if (unlikely(reserved_gpio_map[gpio_bank(ident)] & gpio_bit(ident))) {
printk(KERN_ERR
"%s: Peripheral %d is already reserved as GPIO by %s !\n",
@@ -658,6 +659,8 @@ int peripheral_request(unsigned short per, const char *label)
return -EBUSY;
}
+ }
+
if (unlikely(reserved_peri_map[gpio_bank(ident)] & gpio_bit(ident))) {
/*
diff --git a/include/asm-blackfin/mach-bf537/portmux.h b/include/asm-blackfin/mach-bf537/portmux.h
index 7daa247..ae6c53b 100644
--- a/include/asm-blackfin/mach-bf537/portmux.h
+++ b/include/asm-blackfin/mach-bf537/portmux.h
@@ -106,4 +106,37 @@
#define P_SPI0_SSEL2 (P_DEFINED | P_IDENT(PORT_PJ11) | P_FUNCT(1))
#define P_SPI0_SSEL7 (P_DEFINED | P_IDENT(PORT_PJ5) | P_FUNCT(2))
-#endif /* _MACH_PORTMUX_H_ */
+#define P_MII0 {\
+ P_MII0_ETxD0, \
+ P_MII0_ETxD1, \
+ P_MII0_ETxD2, \
+ P_MII0_ETxD3, \
+ P_MII0_ETxEN, \
+ P_MII0_TxCLK, \
+ P_MII0_PHYINT, \
+ P_MII0_COL, \
+ P_MII0_ERxD0, \
+ P_MII0_ERxD1, \
+ P_MII0_ERxD2, \
+ P_MII0_ERxD3, \
+ P_MII0_ERxDV, \
+ P_MII0_ERxCLK, \
+ P_MII0_ERxER, \
+ P_MII0_CRS, \
+ P_MDC, \
+ P_MDIO, 0}
+
+
+#define P_RMII0 {\
+ P_MII0_ETxD0, \
+ P_MII0_ETxD1, \
+ P_MII0_ETxEN, \
+ P_MII0_ERxD0, \
+ P_MII0_ERxD1, \
+ P_MII0_ERxER, \
+ P_RMII0_REF_CLK, \
+ P_RMII0_MDINT, \
+ P_RMII0_CRS_DV, \
+ P_MDC, \
+ P_MDIO, 0}
+#endif /* _MACH_PORTMUX_H_ */
--
1.5.2
-
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