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Diffstat (limited to 'arch/blackfin/kernel/bfin_gpio.c')
-rw-r--r--arch/blackfin/kernel/bfin_gpio.c35
1 files changed, 33 insertions, 2 deletions
diff --git a/arch/blackfin/kernel/bfin_gpio.c b/arch/blackfin/kernel/bfin_gpio.c
index 3fe0cd49e8d..ce85d4bf34c 100644
--- a/arch/blackfin/kernel/bfin_gpio.c
+++ b/arch/blackfin/kernel/bfin_gpio.c
@@ -124,7 +124,7 @@ static struct gpio_port_t *gpio_bankb[gpio_bank(MAX_BLACKFIN_GPIOS)] = {
};
#endif
-#ifdef BF537_FAMILY
+#if defined(BF527_FAMILY) || defined(BF537_FAMILY)
static struct gpio_port_t *gpio_bankb[gpio_bank(MAX_BLACKFIN_GPIOS)] = {
(struct gpio_port_t *) PORTFIO,
(struct gpio_port_t *) PORTGIO,
@@ -139,6 +139,21 @@ static unsigned short *port_fer[gpio_bank(MAX_BLACKFIN_GPIOS)] = {
#endif
+#ifdef BF527_FAMILY
+static unsigned short *port_mux[gpio_bank(MAX_BLACKFIN_GPIOS)] = {
+ (unsigned short *) PORTF_MUX,
+ (unsigned short *) PORTG_MUX,
+ (unsigned short *) PORTH_MUX,
+};
+
+static const
+u8 pmux_offset[][16] =
+ {{ 0, 0, 0, 0, 0, 0, 0, 0, 2, 2, 4, 6, 8, 8, 10, 10 }, /* PORTF */
+ { 0, 0, 0, 0, 0, 2, 2, 4, 4, 6, 8, 10, 10, 10, 12, 12 }, /* PORTG */
+ { 0, 0, 0, 0, 0, 0, 0, 0, 2, 4, 4, 4, 4, 4, 4, 4 }, /* PORTH */
+ };
+#endif
+
#ifdef BF561_FAMILY
static struct gpio_port_t *gpio_bankb[gpio_bank(MAX_BLACKFIN_GPIOS)] = {
(struct gpio_port_t *) FIO0_FLAG_D,
@@ -186,6 +201,10 @@ static unsigned int sic_iwr_irqs[gpio_bank(MAX_BLACKFIN_GPIOS)] = {IRQ_PROG_INTB
static unsigned int sic_iwr_irqs[gpio_bank(MAX_BLACKFIN_GPIOS)] = {IRQ_PROG_INTB, IRQ_PORTG_INTB, IRQ_MAC_TX};
#endif
+#ifdef BF527_FAMILY
+static unsigned int sic_iwr_irqs[gpio_bank(MAX_BLACKFIN_GPIOS)] = {IRQ_PORTF_INTB, IRQ_PORTG_INTB, IRQ_PORTH_INTB};
+#endif
+
#ifdef BF561_FAMILY
static unsigned int sic_iwr_irqs[gpio_bank(MAX_BLACKFIN_GPIOS)] = {IRQ_PROG0_INTB, IRQ_PROG1_INTB, IRQ_PROG2_INTB};
#endif
@@ -238,7 +257,7 @@ static int cmp_label(unsigned short ident, const char *label)
return -EINVAL;
}
-#ifdef BF537_FAMILY
+#if defined(BF527_FAMILY) || defined(BF537_FAMILY)
static void port_setup(unsigned short gpio, unsigned short usage)
{
if (!check_gpio(gpio)) {
@@ -354,6 +373,18 @@ inline u16 get_portmux(unsigned short portno)
return (pmux >> (2 * gpio_sub_n(portno)) & 0x3);
}
+#elif defined(BF527_FAMILY)
+inline void portmux_setup(unsigned short portno, unsigned short function)
+{
+ u16 pmux, ident = P_IDENT(portno);
+ u8 offset = pmux_offset[gpio_bank(ident)][gpio_sub_n(ident)];
+
+ pmux = *port_mux[gpio_bank(ident)];
+ pmux &= ~(3 << offset);
+ pmux |= (function & 3) << offset;
+ *port_mux[gpio_bank(ident)] = pmux;
+ SSYNC();
+}
#else
# define portmux_setup(...) do { } while (0)
#endif