Blackfin arch: gpio pinmux and resource allocation API required by BF537 on...

Blackfin arch: gpio pinmux and resource allocation API required by BF537 on chip ethernet mac driver
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>

include/asm-blackfin/mach-bf533/bfin_serial_5xx.h

 #include <linux/serial.h>
 #include <asm/dma.h>
+#include <asm/portmux.h>
 
 #define NR_PORTS                1
 
@@ -92,18 +93,24 @@ struct bfin_serial_res bfin_serial_resource[] = {
 	}
 };
 
+#define DRIVER_NAME "bfin-uart"
 
 int nr_ports = NR_PORTS;
 static void bfin_serial_hw_init(struct bfin_serial_port *uart)
 {
 
+#ifdef CONFIG_SERIAL_BFIN_UART0
+	peripheral_request(P_UART0_TX, DRIVER_NAME);
+	peripheral_request(P_UART0_RX, DRIVER_NAME);
+#endif
+
 #ifdef CONFIG_SERIAL_BFIN_CTSRTS
 	if (uart->cts_pin >= 0) {
-		gpio_request(uart->cts_pin, NULL);
+		gpio_request(uart->cts_pin, DRIVER_NAME);
 		gpio_direction_input(uart->cts_pin);
 	}
 	if (uart->rts_pin >= 0) {
-		gpio_request(uart->rts_pin, NULL);
+		gpio_request(uart->rts_pin, DRIVER_NAME);
 		gpio_direction_input(uart->rts_pin);
 	}
 #endif

include/asm-blackfin/mach-bf537/bfin_serial_5xx.h

 #include <linux/serial.h>
 #include <asm/dma.h>
+#include <asm/portmux.h>
 
 #define NR_PORTS		2
 
@@ -122,25 +123,29 @@ struct bfin_serial_res bfin_serial_resource[] = {
 
 int nr_ports = ARRAY_SIZE(bfin_serial_resource);
 
+#define DRIVER_NAME "bfin-uart"
+
 static void bfin_serial_hw_init(struct bfin_serial_port *uart)
 {
-	unsigned short val;
-	val = bfin_read16(BFIN_PORT_MUX);
-	val &= ~(PFDE | PFTE);
-	bfin_write16(BFIN_PORT_MUX, val);
 
-	val = bfin_read16(PORTF_FER);
-	val |= 0xF;
-	bfin_write16(PORTF_FER, val);
+#ifdef CONFIG_SERIAL_BFIN_UART0
+	peripheral_request(P_UART0_TX, DRIVER_NAME);
+	peripheral_request(P_UART0_RX, DRIVER_NAME);
+#endif
+
+#ifdef CONFIG_SERIAL_BFIN_UART1
+	peripheral_request(P_UART1_TX, DRIVER_NAME);
+	peripheral_request(P_UART1_RX, DRIVER_NAME);
+#endif
 
 #ifdef CONFIG_SERIAL_BFIN_CTSRTS
 	if (uart->cts_pin >= 0) {
-		gpio_request(uart->cts_pin, NULL);
+		gpio_request(uart->cts_pin, DRIVER_NAME);
 		gpio_direction_input(uart->cts_pin);
 	}
 
 	if (uart->rts_pin >= 0) {
-		gpio_request(uart->rts_pin, NULL);
+		gpio_request(uart->rts_pin, DRIVER_NAME);
 		gpio_direction_output(uart->rts_pin);
 	}
 #endif

include/asm-blackfin/mach-bf561/bfin_serial_5xx.h

 #include <linux/serial.h>
 #include <asm/dma.h>
+#include <asm/portmux.h>
 
 #define NR_PORTS                1
 
@@ -92,18 +93,24 @@ struct bfin_serial_res bfin_serial_resource[] = {
 	}
 };
 
+#define DRIVER_NAME "bfin-uart"
 
 int nr_ports = NR_PORTS;
 static void bfin_serial_hw_init(struct bfin_serial_port *uart)
 {
 
+#ifdef CONFIG_SERIAL_BFIN_UART0
+	peripheral_request(P_UART0_TX, DRIVER_NAME);
+	peripheral_request(P_UART0_RX, DRIVER_NAME);
+#endif
+
 #ifdef CONFIG_SERIAL_BFIN_CTSRTS
 	if (uart->cts_pin >= 0) {
-		gpio_request(uart->cts_pin, NULL);
+		gpio_request(uart->cts_pin, DRIVER_NAME);
 		gpio_direction_input(uart->cts_pin);
 	}
 	if (uart->rts_pin >= 0) {
-		gpio_request(uart->rts_pin, NULL);
+		gpio_request(uart->rts_pin, DRIVER_NAME);
 		gpio_direction_input(uart->rts_pin);
 	}
 #endif

include/asm-blackfin/portmux.h

@@ -14,6 +14,12 @@
 #define P_MAYSHARE	0x2000
 #define P_DONTCARE	0x1000
 
+
+int peripheral_request(unsigned short per, const char *label);
+void peripheral_free(unsigned short per);
+int peripheral_request_list(unsigned short per[], const char *label);
+void peripheral_free_list(unsigned short per[]);
+
 #include <asm/gpio.h>
 #include <asm/mach/portmux.h>
 
@@ -145,6 +151,22 @@
 #define P_SPI2_SSEL3 P_UNDEF
 #endif
 
+#ifndef P_SPI2_SSEL4
+#define P_SPI2_SSEL4 P_UNDEF
+#endif
+
+#ifndef P_SPI2_SSEL5
+#define P_SPI2_SSEL5 P_UNDEF
+#endif
+
+#ifndef P_SPI2_SSEL6
+#define P_SPI2_SSEL6 P_UNDEF
+#endif
+
+#ifndef P_SPI2_SSEL7
+#define P_SPI2_SSEL7 P_UNDEF
+#endif
+
 #ifndef P_SPI2_SCK
 #define P_SPI2_SCK P_UNDEF
 #endif
@@ -513,6 +535,22 @@
 #define P_SPI0_SSEL3 P_UNDEF
 #endif
 
+#ifndef P_SPI0_SSEL4
+#define P_SPI0_SSEL4 P_UNDEF
+#endif
+
+#ifndef P_SPI0_SSEL5
+#define P_SPI0_SSEL5 P_UNDEF
+#endif
+
+#ifndef P_SPI0_SSEL6
+#define P_SPI0_SSEL6 P_UNDEF
+#endif
+
+#ifndef P_SPI0_SSEL7
+#define P_SPI0_SSEL7 P_UNDEF
+#endif
+
 #ifndef P_UART0_TX
 #define P_UART0_TX P_UNDEF
 #endif
@@ -741,6 +779,23 @@
 #define P_SPI1_SSEL3 P_UNDEF
 #endif
 
+
+#ifndef P_SPI1_SSEL4
+#define P_SPI1_SSEL4 P_UNDEF
+#endif
+
+#ifndef P_SPI1_SSEL5
+#define P_SPI1_SSEL5 P_UNDEF
+#endif
+
+#ifndef P_SPI1_SSEL6
+#define P_SPI1_SSEL6 P_UNDEF
+#endif
+
+#ifndef P_SPI1_SSEL7
+#define P_SPI1_SSEL7 P_UNDEF
+#endif
+
 #ifndef P_SPI1_SCK
 #define P_SPI1_SCK P_UNDEF
 #endif