ixp4xx: remove unmaintained target

This target is still on kernel 4.9, and it looks like there is no
active maintainer for this target anymore.
Remove the code and all the packages which are only used by this target.

To add this target to OpenWrt again port it to a recent and supported
kernel version.

Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>

1 files changed, 0 insertions, 133 deletions

diff --git a/target/linux/ixp4xx/patches-4.9/160-delayed_uart_io.patch b/target/linux/ixp4xx/patches-4.9/160-delayed_uart_io.patch
deleted file mode 100644
index 95cc5680cd..0000000000
--- a/target/linux/ixp4xx/patches-4.9/160-delayed_uart_io.patch
+++ /dev/null
@@ -1,133 +0,0 @@
---- a/drivers/tty/serial/8250/8250_core.c
-+++ b/drivers/tty/serial/8250/8250_core.c
-@@ -833,6 +833,7 @@ static int serial8250_probe(struct platf
- 		uart.port.get_mctrl	= p->get_mctrl;
- 		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) {
-@@ -989,6 +990,7 @@ int serial8250_register_8250_port(struct
- 		uart->bugs		= up->bugs;
- 		uart->port.mapbase      = up->port.mapbase;
- 		uart->port.mapsize      = up->port.mapsize;
-+		uart->port.rw_delay	= up->port.rw_delay;
- 		uart->port.private_data = up->port.private_data;
- 		uart->tx_loadsz		= up->tx_loadsz;
- 		uart->capabilities	= up->capabilities;
---- a/drivers/tty/serial/serial_core.c
-+++ b/drivers/tty/serial/serial_core.c
-@@ -2259,6 +2259,7 @@ 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_MEM16:
- 	case UPIO_MEM32:
-@@ -2931,6 +2932,7 @@ 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_MEM16:
- 	case UPIO_MEM32:
---- a/include/linux/serial_8250.h
-+++ b/include/linux/serial_8250.h
-@@ -28,6 +28,7 @@ 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
-@@ -152,6 +152,7 @@ struct uart_port {
- #define UPIO_TSI		(SERIAL_IO_TSI)		/* Tsi108/109 type IO */
- #define UPIO_MEM32BE		(SERIAL_IO_MEM32BE)	/* 32b big endian */
- #define UPIO_MEM16		(SERIAL_IO_MEM16)	/* 16b little endian */
-+#define UPIO_MEM_DELAY		(SERIAL_IO_MEM_DELAY)
- 
- 	unsigned int		read_status_mask;	/* driver specific */
- 	unsigned int		ignore_status_mask;	/* driver specific */
-@@ -234,6 +235,7 @@ 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;
---- a/drivers/tty/serial/8250/8250_port.c
-+++ b/drivers/tty/serial/8250/8250_port.c
-@@ -383,6 +383,20 @@ static unsigned int mem16_serial_in(stru
- 	return readw(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;
-@@ -455,6 +469,11 @@ static void set_io_from_upio(struct uart
- 		p->serial_out = mem32be_serial_out;
- 		break;
- 
-+	case UPIO_MEM_DELAY:
-+		p->serial_in = memdelay_serial_in;
-+		p->serial_out = memdelay_serial_out;
-+		break;
-+
- #ifdef CONFIG_SERIAL_8250_RT288X
- 	case UPIO_AU:
- 		p->serial_in = au_serial_in;
-@@ -482,6 +501,7 @@ serial_port_out_sync(struct uart_port *p
- 	case UPIO_MEM16:
- 	case UPIO_MEM32:
- 	case UPIO_MEM32BE:
-+	case UPIO_MEM_DELAY:
- 	case UPIO_AU:
- 		p->serial_out(p, offset, value);
- 		p->serial_in(p, UART_LCR);	/* safe, no side-effects */
-@@ -2759,6 +2779,7 @@ static int serial8250_request_std_resour
- 	case UPIO_MEM32BE:
- 	case UPIO_MEM16:
- 	case UPIO_MEM:
-+	case UPIO_MEM_DELAY:
- 		if (!port->mapbase)
- 			break;
- 
-@@ -2797,6 +2818,7 @@ static void serial8250_release_std_resou
- 	case UPIO_MEM32BE:
- 	case UPIO_MEM16:
- 	case UPIO_MEM:
-+	case UPIO_MEM_DELAY:
- 		if (!port->mapbase)
- 			break;
- 
---- a/include/uapi/linux/serial.h
-+++ b/include/uapi/linux/serial.h
-@@ -70,6 +70,7 @@ struct serial_struct {
- #define SERIAL_IO_TSI	  5
- #define SERIAL_IO_MEM32BE 6
- #define SERIAL_IO_MEM16	7
-+#define SERIAL_IO_MEM_DELAY 10
- 
- #define UART_CLEAR_FIFO		0x01
- #define UART_USE_FIFO		0x02