diff options
Diffstat (limited to 'target/linux/ixp4xx/patches-3.18/160-delayed_uart_io.patch')
| -rw-r--r-- | target/linux/ixp4xx/patches-3.18/160-delayed_uart_io.patch | 121 |
1 files changed, 0 insertions, 121 deletions
diff --git a/target/linux/ixp4xx/patches-3.18/160-delayed_uart_io.patch b/target/linux/ixp4xx/patches-3.18/160-delayed_uart_io.patch deleted file mode 100644 index 4207e67..0000000 --- a/target/linux/ixp4xx/patches-3.18/160-delayed_uart_io.patch +++ /dev/null @@ -1,121 +0,0 @@ ---- a/drivers/tty/serial/8250/8250_core.c -+++ b/drivers/tty/serial/8250/8250_core.c -@@ -416,6 +416,20 @@ static void mem_serial_out(struct uart_p - writeb(value, p->membase + offset); - } - -+static unsigned int memdelay_serial_in(struct uart_port *p, int offset) -+{ -+ struct uart_8250_port *up = (struct uart_8250_port *)p; -+ udelay(up->port.rw_delay); -+ return mem_serial_in(p, offset); -+} -+ -+static void memdelay_serial_out(struct uart_port *p, int offset, int value) -+{ -+ struct uart_8250_port *up = (struct uart_8250_port *)p; -+ udelay(up->port.rw_delay); -+ mem_serial_out(p, offset, value); -+} -+ - static void mem32_serial_out(struct uart_port *p, int offset, int value) - { - offset = offset << p->regshift; -@@ -466,6 +480,11 @@ static void set_io_from_upio(struct uart - p->serial_out = mem32_serial_out; - break; - -+ case UPIO_MEM_DELAY: -+ p->serial_in = memdelay_serial_in; -+ p->serial_out = memdelay_serial_out; -+ break; -+ - #if defined(CONFIG_MIPS_ALCHEMY) || defined(CONFIG_SERIAL_8250_RT288X) - case UPIO_AU: - p->serial_in = au_serial_in; -@@ -491,6 +510,7 @@ serial_port_out_sync(struct uart_port *p - switch (p->iotype) { - case UPIO_MEM: - case UPIO_MEM32: -+ case UPIO_MEM_DELAY: - case UPIO_AU: - p->serial_out(p, offset, value); - p->serial_in(p, UART_LCR); /* safe, no side-effects */ -@@ -2649,6 +2669,7 @@ static int serial8250_request_std_resour - case UPIO_TSI: - case UPIO_MEM32: - case UPIO_MEM: -+ case UPIO_MEM_DELAY: - if (!port->mapbase) - break; - -@@ -2685,6 +2706,7 @@ static void serial8250_release_std_resou - case UPIO_TSI: - case UPIO_MEM32: - case UPIO_MEM: -+ case UPIO_MEM_DELAY: - if (!port->mapbase) - break; - -@@ -3418,6 +3440,7 @@ static int serial8250_probe(struct platf - uart.port.set_termios = p->set_termios; - uart.port.pm = p->pm; - uart.port.dev = &dev->dev; -+ uart.port.rw_delay = p->rw_delay; - uart.port.irqflags |= irqflag; - ret = serial8250_register_8250_port(&uart); - if (ret < 0) { -@@ -3574,6 +3597,7 @@ int serial8250_register_8250_port(struct - uart->port.flags = up->port.flags | UPF_BOOT_AUTOCONF; - uart->bugs = up->bugs; - uart->port.mapbase = up->port.mapbase; -+ uart->port.rw_delay = up->port.rw_delay; - uart->port.private_data = up->port.private_data; - uart->port.fifosize = up->port.fifosize; - uart->tx_loadsz = up->tx_loadsz; ---- a/drivers/tty/serial/serial_core.c -+++ b/drivers/tty/serial/serial_core.c -@@ -2090,6 +2090,7 @@ uart_report_port(struct uart_driver *drv - snprintf(address, sizeof(address), - "I/O 0x%lx offset 0x%x", port->iobase, port->hub6); - break; -+ case UPIO_MEM_DELAY: - case UPIO_MEM: - case UPIO_MEM32: - case UPIO_AU: -@@ -2736,6 +2737,7 @@ int uart_match_port(struct uart_port *po - case UPIO_HUB6: - return (port1->iobase == port2->iobase) && - (port1->hub6 == port2->hub6); -+ case UPIO_MEM_DELAY: - case UPIO_MEM: - case UPIO_MEM32: - case UPIO_AU: ---- a/include/linux/serial_8250.h -+++ b/include/linux/serial_8250.h -@@ -27,6 +27,7 @@ struct plat_serial8250_port { - void *private_data; - unsigned char regshift; /* register shift */ - unsigned char iotype; /* UPIO_* */ -+ unsigned int rw_delay; /* udelay for slower busses IXP4XX Expansion Bus */ - unsigned char hub6; - upf_t flags; /* UPF_* flags */ - unsigned int type; /* If UPF_FIXED_TYPE */ ---- a/include/linux/serial_core.h -+++ b/include/linux/serial_core.h -@@ -146,6 +146,7 @@ struct uart_port { - #define UPIO_MEM32 (3) - #define UPIO_AU (4) /* Au1x00 and RT288x type IO */ - #define UPIO_TSI (5) /* Tsi108/109 type IO */ -+#define UPIO_MEM_DELAY (6) - - unsigned int read_status_mask; /* driver specific */ - unsigned int ignore_status_mask; /* driver specific */ -@@ -202,6 +203,7 @@ struct uart_port { - int hw_stopped; /* sw-assisted CTS flow state */ - unsigned int mctrl; /* current modem ctrl settings */ - unsigned int timeout; /* character-based timeout */ -+ unsigned int rw_delay; /* udelay for slow busses, IXP4XX Expansion Bus */ - unsigned int type; /* port type */ - const struct uart_ops *ops; - unsigned int custom_divisor; |