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-rw-r--r--arch/blackfin/include/asm/bfin5xx_spi.h5
-rw-r--r--arch/blackfin/kernel/process.c2
-rw-r--r--arch/blackfin/kernel/time-ts.c12
-rw-r--r--arch/blackfin/mach-bf518/include/mach/bfin_serial_5xx.h10
-rw-r--r--arch/blackfin/mach-bf527/include/mach/bfin_serial_5xx.h36
-rw-r--r--arch/blackfin/mach-bf533/include/mach/bfin_serial_5xx.h29
-rw-r--r--arch/blackfin/mach-bf537/include/mach/bfin_serial_5xx.h37
-rw-r--r--arch/blackfin/mach-bf538/include/mach/bfin_serial_5xx.h10
-rw-r--r--arch/blackfin/mach-bf548/include/mach/bfin_serial_5xx.h117
-rw-r--r--arch/blackfin/mach-bf561/include/mach/bfin_serial_5xx.h29
10 files changed, 84 insertions, 203 deletions
diff --git a/arch/blackfin/include/asm/bfin5xx_spi.h b/arch/blackfin/include/asm/bfin5xx_spi.h
index 0292d58f9362..aaeb4df10d57 100644
--- a/arch/blackfin/include/asm/bfin5xx_spi.h
+++ b/arch/blackfin/include/asm/bfin5xx_spi.h
@@ -11,6 +11,8 @@
#ifndef _SPI_CHANNEL_H_
#define _SPI_CHANNEL_H_
+#define MIN_SPI_BAUD_VAL 2
+
#define SPI_READ 0
#define SPI_WRITE 1
@@ -122,6 +124,9 @@ struct bfin5xx_spi_chip {
u8 bits_per_word;
u8 cs_change_per_word;
u16 cs_chg_udelay; /* Some devices require 16-bit delays */
+ u32 cs_gpio;
+ /* Value to send if no TX value is supplied, usually 0x0 or 0xFFFF */
+ u16 idle_tx_val;
};
#endif /* _SPI_CHANNEL_H_ */
diff --git a/arch/blackfin/kernel/process.c b/arch/blackfin/kernel/process.c
index f49427293ca1..e040e03335ea 100644
--- a/arch/blackfin/kernel/process.c
+++ b/arch/blackfin/kernel/process.c
@@ -337,7 +337,7 @@ int _access_ok(unsigned long addr, unsigned long size)
if (addr >= memory_mtd_end && (addr + size) <= physical_mem_end)
return 1;
-#ifdef CONFIG_ROMFS_MTD_FS
+#ifdef CONFIG_ROMFS_ON_MTD
/* For XIP, allow user space to use pointers within the ROMFS. */
if (addr >= memory_mtd_start && (addr + size) <= memory_mtd_end)
return 1;
diff --git a/arch/blackfin/kernel/time-ts.c b/arch/blackfin/kernel/time-ts.c
index 0ed2badfd746..27646121280a 100644
--- a/arch/blackfin/kernel/time-ts.c
+++ b/arch/blackfin/kernel/time-ts.c
@@ -58,16 +58,11 @@ static inline unsigned long long cycles_2_ns(cycle_t cyc)
return (cyc * cyc2ns_scale) >> CYC2NS_SCALE_FACTOR;
}
-static cycle_t read_cycles(void)
+static cycle_t read_cycles(struct clocksource *cs)
{
return __bfin_cycles_off + (get_cycles() << __bfin_cycles_mod);
}
-unsigned long long sched_clock(void)
-{
- return cycles_2_ns(read_cycles());
-}
-
static struct clocksource clocksource_bfin = {
.name = "bfin_cycles",
.rating = 350,
@@ -77,6 +72,11 @@ static struct clocksource clocksource_bfin = {
.flags = CLOCK_SOURCE_IS_CONTINUOUS,
};
+unsigned long long sched_clock(void)
+{
+ return cycles_2_ns(read_cycles(&clocksource_bfin));
+}
+
static int __init bfin_clocksource_init(void)
{
set_cyc2ns_scale(get_cclk() / 1000);
diff --git a/arch/blackfin/mach-bf518/include/mach/bfin_serial_5xx.h b/arch/blackfin/mach-bf518/include/mach/bfin_serial_5xx.h
index e21c1c3e4ec7..0fb2ce5d840e 100644
--- a/arch/blackfin/mach-bf518/include/mach/bfin_serial_5xx.h
+++ b/arch/blackfin/mach-bf518/include/mach/bfin_serial_5xx.h
@@ -53,9 +53,9 @@
#define UART_SET_DLAB(uart) do { UART_PUT_LCR(uart, UART_GET_LCR(uart) | DLAB); SSYNC(); } while (0)
#define UART_CLEAR_DLAB(uart) do { UART_PUT_LCR(uart, UART_GET_LCR(uart) & ~DLAB); SSYNC(); } while (0)
-#define UART_GET_CTS(x) gpio_get_value(x->cts_pin)
-#define UART_SET_RTS(x) gpio_set_value(x->rts_pin, 1)
-#define UART_CLEAR_RTS(x) gpio_set_value(x->rts_pin, 0)
+#define UART_GET_CTS(x) (!gpio_get_value(x->cts_pin))
+#define UART_DISABLE_RTS(x) gpio_set_value(x->rts_pin, 1)
+#define UART_ENABLE_RTS(x) gpio_set_value(x->rts_pin, 0)
#define UART_ENABLE_INTS(x, v) UART_PUT_IER(x, v)
#define UART_DISABLE_INTS(x) UART_PUT_IER(x, 0)
@@ -87,6 +87,7 @@
struct bfin_serial_port {
struct uart_port port;
unsigned int old_status;
+ int status_irq;
unsigned int lsr;
#ifdef CONFIG_SERIAL_BFIN_DMA
int tx_done;
@@ -125,6 +126,7 @@ static inline void UART_CLEAR_LSR(struct bfin_serial_port *uart)
struct bfin_serial_res {
unsigned long uart_base_addr;
int uart_irq;
+ int uart_status_irq;
#ifdef CONFIG_SERIAL_BFIN_DMA
unsigned int uart_tx_dma_channel;
unsigned int uart_rx_dma_channel;
@@ -140,6 +142,7 @@ struct bfin_serial_res bfin_serial_resource[] = {
{
0xFFC00400,
IRQ_UART0_RX,
+ IRQ_UART0_ERROR,
#ifdef CONFIG_SERIAL_BFIN_DMA
CH_UART0_TX,
CH_UART0_RX,
@@ -154,6 +157,7 @@ struct bfin_serial_res bfin_serial_resource[] = {
{
0xFFC02000,
IRQ_UART1_RX,
+ IRQ_UART1_ERROR,
#ifdef CONFIG_SERIAL_BFIN_DMA
CH_UART1_TX,
CH_UART1_RX,
diff --git a/arch/blackfin/mach-bf527/include/mach/bfin_serial_5xx.h b/arch/blackfin/mach-bf527/include/mach/bfin_serial_5xx.h
index e8c41fd842b5..a625659dd67f 100644
--- a/arch/blackfin/mach-bf527/include/mach/bfin_serial_5xx.h
+++ b/arch/blackfin/mach-bf527/include/mach/bfin_serial_5xx.h
@@ -53,9 +53,9 @@
#define UART_SET_DLAB(uart) do { UART_PUT_LCR(uart, UART_GET_LCR(uart) | DLAB); SSYNC(); } while (0)
#define UART_CLEAR_DLAB(uart) do { UART_PUT_LCR(uart, UART_GET_LCR(uart) & ~DLAB); SSYNC(); } while (0)
-#define UART_GET_CTS(x) gpio_get_value(x->cts_pin)
-#define UART_SET_RTS(x) gpio_set_value(x->rts_pin, 1)
-#define UART_CLEAR_RTS(x) gpio_set_value(x->rts_pin, 0)
+#define UART_GET_CTS(x) (!gpio_get_value(x->cts_pin))
+#define UART_DISABLE_RTS(x) gpio_set_value(x->rts_pin, 1)
+#define UART_ENABLE_RTS(x) gpio_set_value(x->rts_pin, 0)
#define UART_ENABLE_INTS(x, v) UART_PUT_IER(x, v)
#define UART_DISABLE_INTS(x) UART_PUT_IER(x, 0)
@@ -87,6 +87,7 @@
struct bfin_serial_port {
struct uart_port port;
unsigned int old_status;
+ int status_irq;
unsigned int lsr;
#ifdef CONFIG_SERIAL_BFIN_DMA
int tx_done;
@@ -125,6 +126,7 @@ static inline void UART_CLEAR_LSR(struct bfin_serial_port *uart)
struct bfin_serial_res {
unsigned long uart_base_addr;
int uart_irq;
+ int uart_status_irq;
#ifdef CONFIG_SERIAL_BFIN_DMA
unsigned int uart_tx_dma_channel;
unsigned int uart_rx_dma_channel;
@@ -140,6 +142,7 @@ struct bfin_serial_res bfin_serial_resource[] = {
{
0xFFC00400,
IRQ_UART0_RX,
+ IRQ_UART0_ERROR,
#ifdef CONFIG_SERIAL_BFIN_DMA
CH_UART0_TX,
CH_UART0_RX,
@@ -154,6 +157,7 @@ struct bfin_serial_res bfin_serial_resource[] = {
{
0xFFC02000,
IRQ_UART1_RX,
+ IRQ_UART1_ERROR,
#ifdef CONFIG_SERIAL_BFIN_DMA
CH_UART1_TX,
CH_UART1_RX,
@@ -167,29 +171,3 @@ struct bfin_serial_res bfin_serial_resource[] = {
};
#define DRIVER_NAME "bfin-uart"
-
-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_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, DRIVER_NAME);
- gpio_direction_input(uart->cts_pin);
- }
-
- if (uart->rts_pin >= 0) {
- gpio_request(uart->rts_pin, DRIVER_NAME);
- gpio_direction_output(uart->rts_pin, 0);
- }
-#endif
-}
diff --git a/arch/blackfin/mach-bf533/include/mach/bfin_serial_5xx.h b/arch/blackfin/mach-bf533/include/mach/bfin_serial_5xx.h
index 5f517f53b0fd..a3789d7ccf8c 100644
--- a/arch/blackfin/mach-bf533/include/mach/bfin_serial_5xx.h
+++ b/arch/blackfin/mach-bf533/include/mach/bfin_serial_5xx.h
@@ -53,9 +53,9 @@
#define UART_SET_DLAB(uart) do { UART_PUT_LCR(uart, UART_GET_LCR(uart) | DLAB); SSYNC(); } while (0)
#define UART_CLEAR_DLAB(uart) do { UART_PUT_LCR(uart, UART_GET_LCR(uart) & ~DLAB); SSYNC(); } while (0)
-#define UART_GET_CTS(x) gpio_get_value(x->cts_pin)
-#define UART_SET_RTS(x) gpio_set_value(x->rts_pin, 1)
-#define UART_CLEAR_RTS(x) gpio_set_value(x->rts_pin, 0)
+#define UART_GET_CTS(x) (!gpio_get_value(x->cts_pin))
+#define UART_DISABLE_RTS(x) gpio_set_value(x->rts_pin, 1)
+#define UART_ENABLE_RTS(x) gpio_set_value(x->rts_pin, 0)
#define UART_ENABLE_INTS(x, v) UART_PUT_IER(x, v)
#define UART_DISABLE_INTS(x) UART_PUT_IER(x, 0)
@@ -74,6 +74,7 @@
struct bfin_serial_port {
struct uart_port port;
unsigned int old_status;
+ int status_irq;
unsigned int lsr;
#ifdef CONFIG_SERIAL_BFIN_DMA
int tx_done;
@@ -116,6 +117,7 @@ static inline void UART_CLEAR_LSR(struct bfin_serial_port *uart)
struct bfin_serial_res {
unsigned long uart_base_addr;
int uart_irq;
+ int uart_status_irq;
#ifdef CONFIG_SERIAL_BFIN_DMA
unsigned int uart_tx_dma_channel;
unsigned int uart_rx_dma_channel;
@@ -130,6 +132,7 @@ struct bfin_serial_res bfin_serial_resource[] = {
{
0xFFC00400,
IRQ_UART_RX,
+ IRQ_UART_ERROR,
#ifdef CONFIG_SERIAL_BFIN_DMA
CH_UART_TX,
CH_UART_RX,
@@ -142,23 +145,3 @@ struct bfin_serial_res bfin_serial_resource[] = {
};
#define DRIVER_NAME "bfin-uart"
-
-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, DRIVER_NAME);
- gpio_direction_input(uart->cts_pin);
- }
- if (uart->rts_pin >= 0) {
- gpio_request(uart->rts_pin, DRIVER_NAME);
- gpio_direction_output(uart->rts_pin, 0);
- }
-#endif
-}
diff --git a/arch/blackfin/mach-bf537/include/mach/bfin_serial_5xx.h b/arch/blackfin/mach-bf537/include/mach/bfin_serial_5xx.h
index 9e34700844a2..b86662fb9de7 100644
--- a/arch/blackfin/mach-bf537/include/mach/bfin_serial_5xx.h
+++ b/arch/blackfin/mach-bf537/include/mach/bfin_serial_5xx.h
@@ -53,9 +53,9 @@
#define UART_SET_DLAB(uart) do { UART_PUT_LCR(uart, UART_GET_LCR(uart) | DLAB); SSYNC(); } while (0)
#define UART_CLEAR_DLAB(uart) do { UART_PUT_LCR(uart, UART_GET_LCR(uart) & ~DLAB); SSYNC(); } while (0)
-#define UART_GET_CTS(x) gpio_get_value(x->cts_pin)
-#define UART_SET_RTS(x) gpio_set_value(x->rts_pin, 1)
-#define UART_CLEAR_RTS(x) gpio_set_value(x->rts_pin, 0)
+#define UART_GET_CTS(x) (!gpio_get_value(x->cts_pin))
+#define UART_DISABLE_RTS(x) gpio_set_value(x->rts_pin, 1)
+#define UART_ENABLE_RTS(x) gpio_set_value(x->rts_pin, 0)
#define UART_ENABLE_INTS(x, v) UART_PUT_IER(x, v)
#define UART_DISABLE_INTS(x) UART_PUT_IER(x, 0)
@@ -87,6 +87,7 @@
struct bfin_serial_port {
struct uart_port port;
unsigned int old_status;
+ int status_irq;
unsigned int lsr;
#ifdef CONFIG_SERIAL_BFIN_DMA
int tx_done;
@@ -99,7 +100,6 @@ struct bfin_serial_port {
struct work_struct tx_dma_workqueue;
#endif
#ifdef CONFIG_SERIAL_BFIN_CTSRTS
- struct timer_list cts_timer;
int cts_pin;
int rts_pin;
#endif
@@ -125,6 +125,7 @@ static inline void UART_CLEAR_LSR(struct bfin_serial_port *uart)
struct bfin_serial_res {
unsigned long uart_base_addr;
int uart_irq;
+ int uart_status_irq;
#ifdef CONFIG_SERIAL_BFIN_DMA
unsigned int uart_tx_dma_channel;
unsigned int uart_rx_dma_channel;
@@ -140,6 +141,7 @@ struct bfin_serial_res bfin_serial_resource[] = {
{
0xFFC00400,
IRQ_UART0_RX,
+ IRQ_UART0_ERROR,
#ifdef CONFIG_SERIAL_BFIN_DMA
CH_UART0_TX,
CH_UART0_RX,
@@ -154,6 +156,7 @@ struct bfin_serial_res bfin_serial_resource[] = {
{
0xFFC02000,
IRQ_UART1_RX,
+ IRQ_UART1_ERROR,
#ifdef CONFIG_SERIAL_BFIN_DMA
CH_UART1_TX,
CH_UART1_RX,
@@ -167,29 +170,3 @@ struct bfin_serial_res bfin_serial_resource[] = {
};
#define DRIVER_NAME "bfin-uart"
-
-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_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, DRIVER_NAME);
- gpio_direction_input(uart->cts_pin);
- }
-
- if (uart->rts_pin >= 0) {
- gpio_request(uart->rts_pin, DRIVER_NAME);
- gpio_direction_output(uart->rts_pin, 0);
- }
-#endif
-}
diff --git a/arch/blackfin/mach-bf538/include/mach/bfin_serial_5xx.h b/arch/blackfin/mach-bf538/include/mach/bfin_serial_5xx.h
index 3c2811ebecdd..c536551eb4b8 100644
--- a/arch/blackfin/mach-bf538/include/mach/bfin_serial_5xx.h
+++ b/arch/blackfin/mach-bf538/include/mach/bfin_serial_5xx.h
@@ -53,9 +53,9 @@
#define UART_SET_DLAB(uart) do { UART_PUT_LCR(uart, UART_GET_LCR(uart) | DLAB); SSYNC(); } while (0)
#define UART_CLEAR_DLAB(uart) do { UART_PUT_LCR(uart, UART_GET_LCR(uart) & ~DLAB); SSYNC(); } while (0)
-#define UART_GET_CTS(x) gpio_get_value(x->cts_pin)
-#define UART_SET_RTS(x) gpio_set_value(x->rts_pin, 1)
-#define UART_CLEAR_RTS(x) gpio_set_value(x->rts_pin, 0)
+#define UART_GET_CTS(x) (!gpio_get_value(x->cts_pin))
+#define UART_DISABLE_RTS(x) gpio_set_value(x->rts_pin, 1)
+#define UART_ENABLE_RTS(x) gpio_set_value(x->rts_pin, 0)
#define UART_ENABLE_INTS(x, v) UART_PUT_IER(x, v)
#define UART_DISABLE_INTS(x) UART_PUT_IER(x, 0)
@@ -87,6 +87,7 @@
struct bfin_serial_port {
struct uart_port port;
unsigned int old_status;
+ int status_irq;
unsigned int lsr;
#ifdef CONFIG_SERIAL_BFIN_DMA
int tx_done;
@@ -125,6 +126,7 @@ static inline void UART_CLEAR_LSR(struct bfin_serial_port *uart)
struct bfin_serial_res {
unsigned long uart_base_addr;
int uart_irq;
+ int uart_status_irq;
#ifdef CONFIG_SERIAL_BFIN_DMA
unsigned int uart_tx_dma_channel;
unsigned int uart_rx_dma_channel;
@@ -140,6 +142,7 @@ struct bfin_serial_res bfin_serial_resource[] = {
{
0xFFC00400,
IRQ_UART0_RX,
+ IRQ_UART0_ERROR,
#ifdef CONFIG_SERIAL_BFIN_DMA
CH_UART0_TX,
CH_UART0_RX,
@@ -154,6 +157,7 @@ struct bfin_serial_res bfin_serial_resource[] = {
{
0xFFC02000,
IRQ_UART1_RX,
+ IRQ_UART1_ERROR,
#ifdef CONFIG_SERIAL_BFIN_DMA
CH_UART1_TX,
CH_UART1_RX,
diff --git a/arch/blackfin/mach-bf548/include/mach/bfin_serial_5xx.h b/arch/blackfin/mach-bf548/include/mach/bfin_serial_5xx.h
index c05e79cba257..2d1b5fa3cca0 100644
--- a/arch/blackfin/mach-bf548/include/mach/bfin_serial_5xx.h
+++ b/arch/blackfin/mach-bf548/include/mach/bfin_serial_5xx.h
@@ -46,41 +46,27 @@
#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)
#define UART_SET_IER(uart,v) bfin_write16(((uart)->port.membase + OFFSET_IER_SET),v)
-#define UART_CLEAR_IER(uart,v) bfin_write16(((uart)->port.membase + OFFSET_IER_CLEAR),v)
+#define UART_CLEAR_IER(uart,v) bfin_write16(((uart)->port.membase + OFFSET_IER_CLEAR),v)
#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)
+#define UART_CLEAR_SCTS(uart) bfin_write16(((uart)->port.membase + OFFSET_MSR),SCTS)
#define UART_SET_DLAB(uart) /* MMRs not muxed on BF54x */
#define UART_CLEAR_DLAB(uart) /* MMRs not muxed on BF54x */
#define UART_GET_CTS(x) (UART_GET_MSR(x) & CTS)
-#define UART_SET_RTS(x) (UART_PUT_MCR(x, UART_GET_MCR(x) | MRTS))
-#define UART_CLEAR_RTS(x) (UART_PUT_MCR(x, UART_GET_MCR(x) & ~MRTS))
+#define UART_DISABLE_RTS(x) UART_PUT_MCR(x, UART_GET_MCR(x) & ~(ARTS|MRTS))
+#define UART_ENABLE_RTS(x) UART_PUT_MCR(x, UART_GET_MCR(x) | MRTS | ARTS)
#define UART_ENABLE_INTS(x, v) UART_SET_IER(x, v)
#define UART_DISABLE_INTS(x) UART_CLEAR_IER(x, 0xF)
-#if defined(CONFIG_BFIN_UART0_CTSRTS) || defined(CONFIG_BFIN_UART2_CTSRTS)
-# define CONFIG_SERIAL_BFIN_CTSRTS
-
-# ifndef CONFIG_UART0_CTS_PIN
-# define CONFIG_UART0_CTS_PIN -1
-# endif
-
-# ifndef CONFIG_UART0_RTS_PIN
-# define CONFIG_UART0_RTS_PIN -1
-# endif
-
-# ifndef CONFIG_UART2_CTS_PIN
-# define CONFIG_UART2_CTS_PIN -1
-# endif
-
-# ifndef CONFIG_UART2_RTS_PIN
-# define CONFIG_UART2_RTS_PIN -1
-# endif
+#if defined(CONFIG_BFIN_UART0_CTSRTS) || defined(CONFIG_BFIN_UART1_CTSRTS) || \
+ defined(CONFIG_BFIN_UART2_CTSRTS) || defined(CONFIG_BFIN_UART3_CTSRTS)
+# define CONFIG_SERIAL_BFIN_HARD_CTSRTS
#endif
#define BFIN_UART_TX_FIFO_SIZE 2
@@ -91,6 +77,7 @@
struct bfin_serial_port {
struct uart_port port;
unsigned int old_status;
+ int status_irq;
#ifdef CONFIG_SERIAL_BFIN_DMA
int tx_done;
int tx_count;
@@ -101,23 +88,24 @@ struct bfin_serial_port {
unsigned int rx_dma_channel;
struct work_struct tx_dma_workqueue;
#endif
-#ifdef CONFIG_SERIAL_BFIN_CTSRTS
- struct timer_list cts_timer;
- int cts_pin;
- int rts_pin;
+#ifdef CONFIG_SERIAL_BFIN_HARD_CTSRTS
+ int scts;
+ int cts_pin;
+ int rts_pin;
#endif
};
struct bfin_serial_res {
unsigned long uart_base_addr;
int uart_irq;
+ int uart_status_irq;
#ifdef CONFIG_SERIAL_BFIN_DMA
unsigned int uart_tx_dma_channel;
unsigned int uart_rx_dma_channel;
#endif
-#ifdef CONFIG_SERIAL_BFIN_CTSRTS
- int uart_cts_pin;
- int uart_rts_pin;
+#ifdef CONFIG_SERIAL_BFIN_HARD_CTSRTS
+ int uart_cts_pin;
+ int uart_rts_pin;
#endif
};
@@ -126,13 +114,14 @@ struct bfin_serial_res bfin_serial_resource[] = {
{
0xFFC00400,
IRQ_UART0_RX,
+ IRQ_UART0_ERROR,
#ifdef CONFIG_SERIAL_BFIN_DMA
CH_UART0_TX,
CH_UART0_RX,
#endif
-#ifdef CONFIG_SERIAL_BFIN_CTSRTS
- CONFIG_UART0_CTS_PIN,
- CONFIG_UART0_RTS_PIN,
+#ifdef CONFIG_SERIAL_BFIN_HARD_CTSRTS
+ 0,
+ 0,
#endif
},
#endif
@@ -140,13 +129,14 @@ struct bfin_serial_res bfin_serial_resource[] = {
{
0xFFC02000,
IRQ_UART1_RX,
+ IRQ_UART1_ERROR,
#ifdef CONFIG_SERIAL_BFIN_DMA
CH_UART1_TX,
CH_UART1_RX,
#endif
-#ifdef CONFIG_SERIAL_BFIN_CTSRTS
- 0,
- 0,
+#ifdef CONFIG_SERIAL_BFIN_HARD_CTSRTS
+ GPIO_PE10,
+ GPIO_PE9,
#endif
},
#endif
@@ -154,13 +144,14 @@ struct bfin_serial_res bfin_serial_resource[] = {
{
0xFFC02100,
IRQ_UART2_RX,
+ IRQ_UART2_ERROR,
#ifdef CONFIG_SERIAL_BFIN_DMA
CH_UART2_TX,
CH_UART2_RX,
#endif
-#ifdef CONFIG_SERIAL_BFIN_CTSRTS
- CONFIG_UART2_CTS_PIN,
- CONFIG_UART2_RTS_PIN,
+#ifdef CONFIG_SERIAL_BFIN_HARD_CTSRTS
+ 0,
+ 0,
#endif
},
#endif
@@ -168,61 +159,17 @@ struct bfin_serial_res bfin_serial_resource[] = {
{
0xFFC03100,
IRQ_UART3_RX,
+ IRQ_UART3_ERROR,
#ifdef CONFIG_SERIAL_BFIN_DMA
CH_UART3_TX,
CH_UART3_RX,
#endif
-#ifdef CONFIG_SERIAL_BFIN_CTSRTS
- 0,
- 0,
+#ifdef CONFIG_SERIAL_BFIN_HARD_CTSRTS
+ GPIO_PB3,
+ GPIO_PB2,
#endif
},
#endif
};
#define DRIVER_NAME "bfin-uart"
-
-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_UART1
- peripheral_request(P_UART1_TX, DRIVER_NAME);
- peripheral_request(P_UART1_RX, DRIVER_NAME);
-
-#ifdef CONFIG_BFIN_UART1_CTSRTS
- peripheral_request(P_UART1_RTS, DRIVER_NAME);
- peripheral_request(P_UART1_CTS, DRIVER_NAME);
-#endif
-#endif
-
-#ifdef CONFIG_SERIAL_BFIN_UART2
- peripheral_request(P_UART2_TX, DRIVER_NAME);
- peripheral_request(P_UART2_RX, DRIVER_NAME);
-#endif
-
-#ifdef CONFIG_SERIAL_BFIN_UART3
- peripheral_request(P_UART3_TX, DRIVER_NAME);
- peripheral_request(P_UART3_RX, DRIVER_NAME);
-
-#ifdef CONFIG_BFIN_UART3_CTSRTS
- peripheral_request(P_UART3_RTS, DRIVER_NAME);
- peripheral_request(P_UART3_CTS, DRIVER_NAME);
-#endif
-#endif
- SSYNC();
-#ifdef CONFIG_SERIAL_BFIN_CTSRTS
- if (uart->cts_pin >= 0) {
- gpio_request(uart->cts_pin, DRIVER_NAME);
- gpio_direction_input(uart->cts_pin);
- }
-
- if (uart->rts_pin >= 0) {
- gpio_request(uart->rts_pin, DRIVER_NAME);
- gpio_direction_output(uart->rts_pin, 0);
- }
-#endif
-}
diff --git a/arch/blackfin/mach-bf561/include/mach/bfin_serial_5xx.h b/arch/blackfin/mach-bf561/include/mach/bfin_serial_5xx.h
index ca8c5f645209..a1b50878553f 100644
--- a/arch/blackfin/mach-bf561/include/mach/bfin_serial_5xx.h
+++ b/arch/blackfin/mach-bf561/include/mach/bfin_serial_5xx.h
@@ -53,9 +53,9 @@
#define UART_SET_DLAB(uart) do { UART_PUT_LCR(uart, UART_GET_LCR(uart) | DLAB); SSYNC(); } while (0)
#define UART_CLEAR_DLAB(uart) do { UART_PUT_LCR(uart, UART_GET_LCR(uart) & ~DLAB); SSYNC(); } while (0)
-#define UART_GET_CTS(x) gpio_get_value(x->cts_pin)
-#define UART_SET_RTS(x) gpio_set_value(x->rts_pin, 1)
-#define UART_CLEAR_RTS(x) gpio_set_value(x->rts_pin, 0)
+#define UART_GET_CTS(x) (!gpio_get_value(x->cts_pin))
+#define UART_DISABLE_RTS(x) gpio_set_value(x->rts_pin, 1)
+#define UART_ENABLE_RTS(x) gpio_set_value(x->rts_pin, 0)
#define UART_ENABLE_INTS(x, v) UART_PUT_IER(x, v)
#define UART_DISABLE_INTS(x) UART_PUT_IER(x, 0)
@@ -74,6 +74,7 @@
struct bfin_serial_port {
struct uart_port port;
unsigned int old_status;
+ int status_irq;
unsigned int lsr;
#ifdef CONFIG_SERIAL_BFIN_DMA
int tx_done;
@@ -116,6 +117,7 @@ static inline void UART_CLEAR_LSR(struct bfin_serial_port *uart)
struct bfin_serial_res {
unsigned long uart_base_addr;
int uart_irq;
+ int uart_status_irq;
#ifdef CONFIG_SERIAL_BFIN_DMA
unsigned int uart_tx_dma_channel;
unsigned int uart_rx_dma_channel;
@@ -130,6 +132,7 @@ struct bfin_serial_res bfin_serial_resource[] = {
{
0xFFC00400,
IRQ_UART_RX,
+ IRQ_UART_ERROR,
#ifdef CONFIG_SERIAL_BFIN_DMA
CH_UART_TX,
CH_UART_RX,
@@ -142,23 +145,3 @@ struct bfin_serial_res bfin_serial_resource[] = {
};
#define DRIVER_NAME "bfin-uart"
-
-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, DRIVER_NAME);
- gpio_direction_input(uart->cts_pin);
- }
- if (uart->rts_pin >= 0) {
- gpio_request(uart->rts_pin, DRIVER_NAME);
- gpio_direction_output(uart->rts_pin, 0);
- }
-#endif
-}
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.