Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/blackfin-2.6

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/blackfin-2.6: (35 commits)
  Blackfin Serial Driver: Fix bug - Only insert UART rx char in timer task.
  Blackfin Serial Driver: Fix bug - update tx dma buffer tail before wake up processes.
  Blackfin Serial Driver: Fix bug - Increase buffer tail immediately before starting tx dma.
  [Blackfin] serial driver: Add flow control support to bf54x
  [Blackfin] serial driver: Fix bug Poll RTS/CTS status in DMA mode as well
  [Blackfin] serial driver: ADSP-BF52x arch/mach support
  [Blackfin] serial driver: use simpler comment headers and strip out information that is maintained in the scm's log
  [Blackfin] serial driver: rework break flood anomaly handling to be more robust/realistic about what we can actually work around
  [Blackfin] serial driver: fix bug - cache the bits of the LSR on systems where the LSR is read-to-clear
  [Blackfin] serial driver: fix bug - should not wait for the TFI bit, just clear it when tx stop.
  [Blackfin] serial driver: Fix bug serial driver in DMA mode spams history to console on shell restart
  [Blackfin] serial driver: Fix bug Free rx dma buffer in shutdown.
  [Blackfin] serial driver: Clean up UART DMA code.
  Blackfin Serial driver: Fix bug - serial driver in PIO mode cant handle input very quickly
  [Blackfin] arch: kill section mismatch warnings
  [Blackfin] arch: handle the most common L1 shrinkage case (L1 does not exist for a part) so that any parts labeled for L1 instead get placed into external memory sections
  [Blackfin] arch: add bfin_clear_PPIx_STATUS() helper funcs like we have for other parts
  [Blackfin] arch: make sure we have proper description/copyright/license lines
  [Blackfin] arch: Fix CONFIG_PM support for BF561
  [Blackfin] arch: Remove DPMC char driver option
  ...

9 files changed, 96 insertions, 17 deletions

diff --git a/include/asm-blackfin/gptimers.h b/include/asm-blackfin/gptimers.h
index 8265ea4..4f318f1 100644
--- a/include/asm-blackfin/gptimers.h
+++ b/include/asm-blackfin/gptimers.h
@@ -1,12 +1,11 @@
 /*
- * include/asm/bf5xx_timers.h
- *
- * This file contains the major Data structures and constants
- * used for General Purpose Timer Implementation in BF5xx
+ * gptimers.h - Blackfin General Purpose Timer structs/defines/prototypes
  *
+ * Copyright (c) 2005-2008 Analog Devices Inc.
  * Copyright (C) 2005 John DeHority
  * Copyright (C) 2006 Hella Aglaia GmbH (awe@aglaia-gmbh.de)
  *
+ * Licensed under the GPL-2.
  */
 
 #ifndef _BLACKFIN_TIMERS_H_
diff --git a/include/asm-blackfin/irq.h b/include/asm-blackfin/irq.h
index 65480da..86b6783 100644
--- a/include/asm-blackfin/irq.h
+++ b/include/asm-blackfin/irq.h
@@ -67,4 +67,6 @@ static __inline__ int irq_canonicalize(int irq)
 #define NO_IRQ ((unsigned int)(-1))
 #endif
 
+#define SIC_SYSIRQ(irq)	(irq - (IRQ_CORETMR + 1))
+
 #endif				/* _BFIN_IRQ_H_ */
diff --git a/include/asm-blackfin/mach-bf527/bfin_serial_5xx.h b/include/asm-blackfin/mach-bf527/bfin_serial_5xx.h
index 15dbc21..c0694ec 100644
--- a/include/asm-blackfin/mach-bf527/bfin_serial_5xx.h
+++ b/include/asm-blackfin/mach-bf527/bfin_serial_5xx.h
@@ -23,7 +23,6 @@
 #define UART_GET_DLH(uart)	bfin_read16(((uart)->port.membase + OFFSET_DLH))
 #define UART_GET_IIR(uart)      bfin_read16(((uart)->port.membase + OFFSET_IIR))
 #define UART_GET_LCR(uart)      bfin_read16(((uart)->port.membase + OFFSET_LCR))
-#define UART_GET_LSR(uart)      bfin_read16(((uart)->port.membase + OFFSET_LSR))
 #define UART_GET_GCTL(uart)     bfin_read16(((uart)->port.membase + OFFSET_GCTL))
 
 #define UART_PUT_CHAR(uart, v)   bfin_write16(((uart)->port.membase + OFFSET_THR), v)
@@ -58,6 +57,7 @@
 struct bfin_serial_port {
 	struct uart_port port;
 	unsigned int old_status;
+	unsigned int lsr;
 #ifdef CONFIG_SERIAL_BFIN_DMA
 	int tx_done;
 	int tx_count;
@@ -67,15 +67,31 @@ struct bfin_serial_port {
 	unsigned int tx_dma_channel;
 	unsigned int rx_dma_channel;
 	struct work_struct tx_dma_workqueue;
-#else
-	struct work_struct cts_workqueue;
 #endif
 #ifdef CONFIG_SERIAL_BFIN_CTSRTS
+	struct work_struct cts_workqueue;
 	int cts_pin;
 	int rts_pin;
 #endif
 };
 
+/* The hardware clears the LSR bits upon read, so we need to cache
+ * some of the more fun bits in software so they don't get lost
+ * when checking the LSR in other code paths (TX).
+ */
+static inline unsigned int UART_GET_LSR(struct bfin_serial_port *uart)
+{
+	unsigned int lsr = bfin_read16(uart->port.membase + OFFSET_LSR);
+	uart->lsr |= (lsr & (BI|FE|PE|OE));
+	return lsr | uart->lsr;
+}
+
+static inline void UART_CLEAR_LSR(struct bfin_serial_port *uart)
+{
+	uart->lsr = 0;
+	bfin_write16(uart->port.membase + OFFSET_LSR, -1);
+}
+
 struct bfin_serial_port bfin_serial_ports[NR_PORTS];
 struct bfin_serial_res {
 	unsigned long uart_base_addr;
diff --git a/include/asm-blackfin/mach-bf533/bfin_serial_5xx.h b/include/asm-blackfin/mach-bf533/bfin_serial_5xx.h
index 7871d43..b6f513b 100644
--- a/include/asm-blackfin/mach-bf533/bfin_serial_5xx.h
+++ b/include/asm-blackfin/mach-bf533/bfin_serial_5xx.h
@@ -23,7 +23,6 @@
 #define UART_GET_DLH(uart)	bfin_read16(((uart)->port.membase + OFFSET_DLH))
 #define UART_GET_IIR(uart)      bfin_read16(((uart)->port.membase + OFFSET_IIR))
 #define UART_GET_LCR(uart)      bfin_read16(((uart)->port.membase + OFFSET_LCR))
-#define UART_GET_LSR(uart)      bfin_read16(((uart)->port.membase + OFFSET_LSR))
 #define UART_GET_GCTL(uart)     bfin_read16(((uart)->port.membase + OFFSET_GCTL))
 
 #define UART_PUT_CHAR(uart,v)   bfin_write16(((uart)->port.membase + OFFSET_THR),v)
@@ -46,6 +45,7 @@
 struct bfin_serial_port {
         struct uart_port        port;
         unsigned int            old_status;
+	unsigned int lsr;
 #ifdef CONFIG_SERIAL_BFIN_DMA
 	int			tx_done;
 	int			tx_count;
@@ -56,14 +56,34 @@ struct bfin_serial_port {
 	unsigned int		rx_dma_channel;
 	struct work_struct	tx_dma_workqueue;
 #else
-	struct work_struct 	cts_workqueue;
+# if ANOMALY_05000230
+	unsigned int anomaly_threshold;
+# endif
 #endif
 #ifdef CONFIG_SERIAL_BFIN_CTSRTS
+	struct work_struct 	cts_workqueue;
 	int			cts_pin;
 	int			rts_pin;
 #endif
 };
 
+/* The hardware clears the LSR bits upon read, so we need to cache
+ * some of the more fun bits in software so they don't get lost
+ * when checking the LSR in other code paths (TX).
+ */
+static inline unsigned int UART_GET_LSR(struct bfin_serial_port *uart)
+{
+	unsigned int lsr = bfin_read16(uart->port.membase + OFFSET_LSR);
+	uart->lsr |= (lsr & (BI|FE|PE|OE));
+	return lsr | uart->lsr;
+}
+
+static inline void UART_CLEAR_LSR(struct bfin_serial_port *uart)
+{
+	uart->lsr = 0;
+	bfin_write16(uart->port.membase + OFFSET_LSR, -1);
+}
+
 struct bfin_serial_port bfin_serial_ports[NR_PORTS];
 struct bfin_serial_res {
 	unsigned long	uart_base_addr;
diff --git a/include/asm-blackfin/mach-bf537/bfin_serial_5xx.h b/include/asm-blackfin/mach-bf537/bfin_serial_5xx.h
index 86e45c3..8fc672d 100644
--- a/include/asm-blackfin/mach-bf537/bfin_serial_5xx.h
+++ b/include/asm-blackfin/mach-bf537/bfin_serial_5xx.h
@@ -23,7 +23,6 @@
 #define UART_GET_DLH(uart)	bfin_read16(((uart)->port.membase + OFFSET_DLH))
 #define UART_GET_IIR(uart)      bfin_read16(((uart)->port.membase + OFFSET_IIR))
 #define UART_GET_LCR(uart)      bfin_read16(((uart)->port.membase + OFFSET_LCR))
-#define UART_GET_LSR(uart)      bfin_read16(((uart)->port.membase + OFFSET_LSR))
 #define UART_GET_GCTL(uart)     bfin_read16(((uart)->port.membase + OFFSET_GCTL))
 
 #define UART_PUT_CHAR(uart,v)   bfin_write16(((uart)->port.membase + OFFSET_THR),v)
@@ -58,6 +57,7 @@
 struct bfin_serial_port {
         struct uart_port        port;
         unsigned int            old_status;
+	unsigned int lsr;
 #ifdef CONFIG_SERIAL_BFIN_DMA
 	int			tx_done;
 	int			tx_count;
@@ -67,15 +67,31 @@ struct bfin_serial_port {
 	unsigned int		tx_dma_channel;
 	unsigned int		rx_dma_channel;
 	struct work_struct	tx_dma_workqueue;
-#else
-	struct work_struct 	cts_workqueue;
 #endif
 #ifdef CONFIG_SERIAL_BFIN_CTSRTS
+	struct work_struct 	cts_workqueue;
 	int		cts_pin;
 	int 		rts_pin;
 #endif
 };
 
+/* The hardware clears the LSR bits upon read, so we need to cache
+ * some of the more fun bits in software so they don't get lost
+ * when checking the LSR in other code paths (TX).
+ */
+static inline unsigned int UART_GET_LSR(struct bfin_serial_port *uart)
+{
+	unsigned int lsr = bfin_read16(uart->port.membase + OFFSET_LSR);
+	uart->lsr |= (lsr & (BI|FE|PE|OE));
+	return lsr | uart->lsr;
+}
+
+static inline void UART_CLEAR_LSR(struct bfin_serial_port *uart)
+{
+	uart->lsr = 0;
+	bfin_write16(uart->port.membase + OFFSET_LSR, -1);
+}
+
 struct bfin_serial_port bfin_serial_ports[NR_PORTS];
 struct bfin_serial_res {
 	unsigned long	uart_base_addr;
diff --git a/include/asm-blackfin/mach-bf548/bfin_serial_5xx.h b/include/asm-blackfin/mach-bf548/bfin_serial_5xx.h
index 3770aa3..7e6339f 100644
--- a/include/asm-blackfin/mach-bf548/bfin_serial_5xx.h
+++ b/include/asm-blackfin/mach-bf548/bfin_serial_5xx.h
@@ -24,6 +24,8 @@
 #define UART_GET_LCR(uart)      bfin_read16(((uart)->port.membase + OFFSET_LCR))
 #define UART_GET_LSR(uart)      bfin_read16(((uart)->port.membase + OFFSET_LSR))
 #define UART_GET_GCTL(uart)     bfin_read16(((uart)->port.membase + OFFSET_GCTL))
+#define UART_GET_MSR(uart)      bfin_read16(((uart)->port.membase + OFFSET_MSR))
+#define UART_GET_MCR(uart)      bfin_read16(((uart)->port.membase + OFFSET_MCR))
 
 #define UART_PUT_CHAR(uart,v)   bfin_write16(((uart)->port.membase + OFFSET_THR),v)
 #define UART_PUT_DLL(uart,v)    bfin_write16(((uart)->port.membase + OFFSET_DLL),v)
@@ -32,7 +34,9 @@
 #define UART_PUT_DLH(uart,v)    bfin_write16(((uart)->port.membase + OFFSET_DLH),v)
 #define UART_PUT_LSR(uart,v)	bfin_write16(((uart)->port.membase + OFFSET_LSR),v)
 #define UART_PUT_LCR(uart,v)    bfin_write16(((uart)->port.membase + OFFSET_LCR),v)
+#define UART_CLEAR_LSR(uart)    bfin_write16(((uart)->port.membase + OFFSET_LSR), -1)
 #define UART_PUT_GCTL(uart,v)   bfin_write16(((uart)->port.membase + OFFSET_GCTL),v)
+#define UART_PUT_MCR(uart,v)    bfin_write16(((uart)->port.membase + OFFSET_MCR),v)
 
 #if defined(CONFIG_BFIN_UART0_CTSRTS) || defined(CONFIG_BFIN_UART1_CTSRTS)
 # define CONFIG_SERIAL_BFIN_CTSRTS
@@ -68,10 +72,9 @@ struct bfin_serial_port {
 	unsigned int		tx_dma_channel;
 	unsigned int		rx_dma_channel;
 	struct work_struct	tx_dma_workqueue;
-#else
-	struct work_struct 	cts_workqueue;
 #endif
 #ifdef CONFIG_SERIAL_BFIN_CTSRTS
+	struct work_struct 	cts_workqueue;
 	int		cts_pin;
 	int 		rts_pin;
 #endif
diff --git a/include/asm-blackfin/mach-bf561/bfin_serial_5xx.h b/include/asm-blackfin/mach-bf561/bfin_serial_5xx.h
index 7871d43..b6f513b 100644
--- a/include/asm-blackfin/mach-bf561/bfin_serial_5xx.h
+++ b/include/asm-blackfin/mach-bf561/bfin_serial_5xx.h
@@ -23,7 +23,6 @@
 #define UART_GET_DLH(uart)	bfin_read16(((uart)->port.membase + OFFSET_DLH))
 #define UART_GET_IIR(uart)      bfin_read16(((uart)->port.membase + OFFSET_IIR))
 #define UART_GET_LCR(uart)      bfin_read16(((uart)->port.membase + OFFSET_LCR))
-#define UART_GET_LSR(uart)      bfin_read16(((uart)->port.membase + OFFSET_LSR))
 #define UART_GET_GCTL(uart)     bfin_read16(((uart)->port.membase + OFFSET_GCTL))
 
 #define UART_PUT_CHAR(uart,v)   bfin_write16(((uart)->port.membase + OFFSET_THR),v)
@@ -46,6 +45,7 @@
 struct bfin_serial_port {
         struct uart_port        port;
         unsigned int            old_status;
+	unsigned int lsr;
 #ifdef CONFIG_SERIAL_BFIN_DMA
 	int			tx_done;
 	int			tx_count;
@@ -56,14 +56,34 @@ struct bfin_serial_port {
 	unsigned int		rx_dma_channel;
 	struct work_struct	tx_dma_workqueue;
 #else
-	struct work_struct 	cts_workqueue;
+# if ANOMALY_05000230
+	unsigned int anomaly_threshold;
+# endif
 #endif
 #ifdef CONFIG_SERIAL_BFIN_CTSRTS
+	struct work_struct 	cts_workqueue;
 	int			cts_pin;
 	int			rts_pin;
 #endif
 };
 
+/* The hardware clears the LSR bits upon read, so we need to cache
+ * some of the more fun bits in software so they don't get lost
+ * when checking the LSR in other code paths (TX).
+ */
+static inline unsigned int UART_GET_LSR(struct bfin_serial_port *uart)
+{
+	unsigned int lsr = bfin_read16(uart->port.membase + OFFSET_LSR);
+	uart->lsr |= (lsr & (BI|FE|PE|OE));
+	return lsr | uart->lsr;
+}
+
+static inline void UART_CLEAR_LSR(struct bfin_serial_port *uart)
+{
+	uart->lsr = 0;
+	bfin_write16(uart->port.membase + OFFSET_LSR, -1);
+}
+
 struct bfin_serial_port bfin_serial_ports[NR_PORTS];
 struct bfin_serial_res {
 	unsigned long	uart_base_addr;
diff --git a/include/asm-blackfin/mach-bf561/blackfin.h b/include/asm-blackfin/mach-bf561/blackfin.h
index 362617f..3a16df2 100644
--- a/include/asm-blackfin/mach-bf561/blackfin.h
+++ b/include/asm-blackfin/mach-bf561/blackfin.h
@@ -49,7 +49,8 @@
 #define bfin_read_FIO_INEN() bfin_read_FIO0_INEN()
 #define bfin_write_FIO_INEN(val) bfin_write_FIO0_INEN(val)
 
-
+#define SIC_IWR0 SICA_IWR0
+#define SIC_IWR1 SICA_IWR1
 #define SIC_IAR0 SICA_IAR0
 #define bfin_write_SIC_IMASK0 bfin_write_SICA_IMASK0
 #define bfin_write_SIC_IMASK1 bfin_write_SICA_IMASK1
diff --git a/include/asm-blackfin/mach-bf561/cdefBF561.h b/include/asm-blackfin/mach-bf561/cdefBF561.h
index d667816..1bc8d2f 100644
--- a/include/asm-blackfin/mach-bf561/cdefBF561.h
+++ b/include/asm-blackfin/mach-bf561/cdefBF561.h
@@ -559,6 +559,7 @@ static __inline__ void bfin_write_VR_CTL(unsigned int val)
 #define bfin_write_PPI0_CONTROL(val)         bfin_write16(PPI0_CONTROL,val)
 #define bfin_read_PPI0_STATUS()              bfin_read16(PPI0_STATUS)
 #define bfin_write_PPI0_STATUS(val)          bfin_write16(PPI0_STATUS,val)
+#define bfin_clear_PPI0_STATUS()             bfin_read_PPI0_STATUS()
 #define bfin_read_PPI0_COUNT()               bfin_read16(PPI0_COUNT)
 #define bfin_write_PPI0_COUNT(val)           bfin_write16(PPI0_COUNT,val)
 #define bfin_read_PPI0_DELAY()               bfin_read16(PPI0_DELAY)
@@ -570,6 +571,7 @@ static __inline__ void bfin_write_VR_CTL(unsigned int val)
 #define bfin_write_PPI1_CONTROL(val)         bfin_write16(PPI1_CONTROL,val)
 #define bfin_read_PPI1_STATUS()              bfin_read16(PPI1_STATUS)
 #define bfin_write_PPI1_STATUS(val)          bfin_write16(PPI1_STATUS,val)
+#define bfin_clear_PPI1_STATUS()             bfin_read_PPI1_STATUS()
 #define bfin_read_PPI1_COUNT()               bfin_read16(PPI1_COUNT)
 #define bfin_write_PPI1_COUNT(val)           bfin_write16(PPI1_COUNT,val)
 #define bfin_read_PPI1_DELAY()               bfin_read16(PPI1_DELAY)