Blackfin: BF50x: new processor port

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

3 files changed, 37 insertions, 17 deletions

diff --git a/arch/blackfin/cpu/gpio.c b/arch/blackfin/cpu/gpio.c
index 488ca11bb0..cb96721cf4 100644
--- a/arch/blackfin/cpu/gpio.c
+++ b/arch/blackfin/cpu/gpio.c
@@ -45,7 +45,7 @@ static struct gpio_port_t * const gpio_array[] = {
 #if defined(BF533_FAMILY)
 	(struct gpio_port_t *) FIO_FLAG_D,
 #elif defined(CONFIG_BF52x) || defined(BF537_FAMILY) || defined(CONFIG_BF51x) \
-	|| defined(BF538_FAMILY)
+	|| defined(BF538_FAMILY) || defined(CONFIG_BF50x)
 	(struct gpio_port_t *) PORTFIO,
 # if !defined(BF538_FAMILY)
 	(struct gpio_port_t *) PORTGIO,
@@ -71,7 +71,8 @@ static struct gpio_port_t * const gpio_array[] = {
 #endif
 };
 
-#if defined(CONFIG_BF52x) || defined(BF537_FAMILY) || defined(CONFIG_BF51x)
+#if defined(CONFIG_BF52x) || defined(BF537_FAMILY) || defined(CONFIG_BF51x) || \
+    defined(CONFIG_BF50x)
 static unsigned short * const port_fer[] = {
 	(unsigned short *) PORTF_FER,
 	(unsigned short *) PORTG_FER,
@@ -202,7 +203,8 @@ static void port_setup(unsigned gpio, unsigned short usage)
 	if (check_gpio(gpio))
 		return;
 
-#if defined(CONFIG_BF52x) || defined(BF537_FAMILY) || defined(CONFIG_BF51x)
+#if defined(CONFIG_BF52x) || defined(BF537_FAMILY) || defined(CONFIG_BF51x) || \
+    defined(CONFIG_BF50x)
 	if (usage == GPIO_USAGE)
 		*port_fer[gpio_bank(gpio)] &= ~gpio_bit(gpio);
 	else
diff --git a/arch/blackfin/cpu/initcode.c b/arch/blackfin/cpu/initcode.c
index 433d477ddf..750add06bc 100644
--- a/arch/blackfin/cpu/initcode.c
+++ b/arch/blackfin/cpu/initcode.c
@@ -341,13 +341,13 @@ maybe_self_refresh(ADI_BOOT_DATA *bs)
 		return false;
 
 	/* If external memory is enabled, put it into self refresh first. */
-#ifdef EBIU_RSTCTL
+#if defined(EBIU_RSTCTL)
 	if (bfin_read_EBIU_RSTCTL() & DDR_SRESET) {
 		serial_putc('b');
 		bfin_write_EBIU_RSTCTL(bfin_read_EBIU_RSTCTL() | SRREQ);
 		return true;
 	}
-#else
+#elif defined(EBIU_SDGCTL)
 	if (bfin_read_EBIU_SDBCTL() & EBE) {
 		serial_putc('b');
 		bfin_write_EBIU_SDGCTL(bfin_read_EBIU_SDGCTL() | SRFS);
@@ -373,12 +373,15 @@ program_clocks(ADI_BOOT_DATA *bs, bool put_into_srfs)
 
 	/* If we're entering self refresh, make sure it has happened. */
 	if (put_into_srfs)
-#ifdef EBIU_RSTCTL
+#if defined(EBIU_RSTCTL)
 		while (!(bfin_read_EBIU_RSTCTL() & SRACK))
-#else
+			continue;
+#elif defined(EBIU_SDGCTL)
 		while (!(bfin_read_EBIU_SDSTAT() & SDSRA))
-#endif
 			continue;
+#else
+		;
+#endif
 
 	serial_putc('c');
 
@@ -536,7 +539,7 @@ program_memory_controller(ADI_BOOT_DATA *bs, bool put_into_srfs)
 	/* Program the external memory controller before we come out of
 	 * self-refresh.  This only works with our SDRAM controller.
 	 */
-#ifndef EBIU_RSTCTL
+#ifdef EBIU_SDGCTL
 # ifdef CONFIG_EBIU_SDRRC_VAL
 	bfin_write_EBIU_SDRRC(CONFIG_EBIU_SDRRC_VAL);
 # endif
@@ -552,9 +555,9 @@ program_memory_controller(ADI_BOOT_DATA *bs, bool put_into_srfs)
 
 	/* Now that we've reprogrammed, take things out of self refresh. */
 	if (put_into_srfs)
-#ifdef EBIU_RSTCTL
+#if defined(EBIU_RSTCTL)
 		bfin_write_EBIU_RSTCTL(bfin_read_EBIU_RSTCTL() & ~(SRREQ));
-#else
+#elif defined(EBIU_SDGCTL)
 		bfin_write_EBIU_SDGCTL(bfin_read_EBIU_SDGCTL() & ~(SRFS));
 #endif
 
@@ -646,10 +649,10 @@ program_async_controller(ADI_BOOT_DATA *bs)
 	serial_putc('b');
 
 	/* Not all parts have these additional MMRs. */
-#ifdef EBIU_MODE
-# ifdef CONFIG_EBIU_MBSCTL_VAL
+#ifdef EBIU_MBSCTL
 	bfin_write_EBIU_MBSCTL(CONFIG_EBIU_MBSCTL_VAL);
-# endif
+#endif
+#ifdef EBIU_MODE
 # ifdef CONFIG_EBIU_MODE_VAL
 	bfin_write_EBIU_MODE(CONFIG_EBIU_MODE_VAL);
 # endif
diff --git a/arch/blackfin/cpu/serial.h b/arch/blackfin/cpu/serial.h
index b0cf09a2f5..7999a19333 100644
--- a/arch/blackfin/cpu/serial.h
+++ b/arch/blackfin/cpu/serial.h
@@ -31,13 +31,19 @@
 #define LOB(x) ((x) & 0xFF)
 #define HIB(x) (((x) >> 8) & 0xFF)
 
+#if defined(__ADSPBF50x__) || defined(__ADSPBF54x__)
+# define BFIN_UART_HW_VER 2
+#else
+# define BFIN_UART_HW_VER 1
+#endif
+
 /*
  * All Blackfin system MMRs are padded to 32bits even if the register
  * itself is only 16bits.  So use a helper macro to streamline this.
  */
 #define __BFP(m) u16 m; u16 __pad_##m
 struct bfin_mmr_serial {
-#ifdef __ADSPBF54x__
+#if BFIN_UART_HW_VER == 2
 	__BFP(dll);
 	__BFP(dlh);
 	__BFP(gctl);
@@ -88,7 +94,7 @@ struct bfin_mmr_serial {
 #endif
 #define pUART ((volatile struct bfin_mmr_serial *)UART_DLL)
 
-#ifdef __ADSPBF54x__
+#if BFIN_UART_HW_VER == 2
 # define ACCESS_LATCH()
 # define ACCESS_PORT_IER()
 #else
@@ -107,7 +113,16 @@ static inline void serial_do_portmux(void)
 		return;
 	}
 
-#if defined(__ADSPBF51x__)
+#if defined(__ADSPBF50x__)
+# define DO_MUX(port, mux_tx, mux_rx, tx, rx) \
+	bfin_write_PORT##port##_MUX((bfin_read_PORT##port##_MUX() & ~(PORT_x_MUX_##mux_tx##_MASK | PORT_x_MUX_##mux_rx##_MASK)) | PORT_x_MUX_##mux_tx##_FUNC_1 | PORT_x_MUX_##mux_rx##_FUNC_1); \
+	bfin_write_PORT##port##_FER(bfin_read_PORT##port##_FER() | P##port##tx | P##port##rx);
+	switch (CONFIG_UART_CONSOLE) {
+	case 0: DO_MUX(G, 7, 7, 12, 13); break;	/* Port G; mux 7; PG12 and PG13 */
+	case 1: DO_MUX(F, 3, 3, 6, 7);   break;	/* Port F; mux 3; PF6 and PF7 */
+	}
+	SSYNC();
+#elif defined(__ADSPBF51x__)
 # define DO_MUX(port, mux_tx, mux_rx, tx, rx) \
 	bfin_write_PORT##port##_MUX((bfin_read_PORT##port##_MUX() & ~(PORT_x_MUX_##mux_tx##_MASK | PORT_x_MUX_##mux_rx##_MASK)) | PORT_x_MUX_##mux_tx##_FUNC_2 | PORT_x_MUX_##mux_rx##_FUNC_2); \
 	bfin_write_PORT##port##_FER(bfin_read_PORT##port##_FER() | P##port##tx | P##port##rx);