[xburst] Drop support for older kernel versions

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@24915 3c298f89-4303-0410-b956-a3cf2f4a3e73

1 files changed, 0 insertions, 178 deletions

diff --git a/target/linux/xburst/patches-2.6.34/103-serial.patch b/target/linux/xburst/patches-2.6.34/103-serial.patch
deleted file mode 100644
index 162dc627ba..0000000000
--- a/target/linux/xburst/patches-2.6.34/103-serial.patch
+++ /dev/null
@@ -1,178 +0,0 @@
-From 6e138e4c3bfa5fb272d215107d85385456281ceb Mon Sep 17 00:00:00 2001
-From: Lars-Peter Clausen <lars@metafoo.de>
-Date: Sat, 24 Apr 2010 12:19:30 +0200
-Subject: [PATCH] Add jz4740 serial driver
-
----
- drivers/serial/8250.c |  104 ++++++++++++++++++++++++++++++++++++++++++++++++-
- 1 files changed, 103 insertions(+), 1 deletions(-)
-
-diff --git a/drivers/serial/8250.c b/drivers/serial/8250.c
-index 2b1ea3d..4c41c57 100644
---- a/drivers/serial/8250.c
-+++ b/drivers/serial/8250.c
-@@ -200,7 +200,7 @@ static const struct serial8250_config uart_config[] = {
- 	[PORT_16550A] = {
- 		.name		= "16550A",
- 		.fifo_size	= 16,
--		.tx_loadsz	= 16,
-+		.tx_loadsz	= 8,
- 		.fcr		= UART_FCR_ENABLE_FIFO | UART_FCR_R_TRIG_10,
- 		.flags		= UART_CAP_FIFO,
- 	},
-@@ -407,6 +407,10 @@ static unsigned int mem_serial_in(struct uart_port *p, int offset)
- static void mem_serial_out(struct uart_port *p, int offset, int value)
- {
- 	offset = map_8250_out_reg(p, offset) << p->regshift;
-+#if defined(CONFIG_JZSOC)
-+		if (offset == (UART_FCR << p->regshift))
-+			value |= 0x10; /* set FCR.UUE */
-+#endif
- 	writeb(value, p->membase + offset);
- }
- 
-@@ -2209,6 +2213,83 @@ static void serial8250_shutdown(struct uart_port *port)
- 		serial_unlink_irq_chain(up);
- }
- 
-+#if defined(CONFIG_JZSOC) && !defined(CONFIG_SOC_JZ4730)
-+static unsigned short quot1[3] = {0}; /* quot[0]:baud_div, quot[1]:umr, quot[2]:uacr */
-+static unsigned short * serial8250_get_divisor(struct uart_port *port, unsigned int baud)
-+{
-+	int err, sum, i, j;
-+	int a[12], b[12];
-+	unsigned short div, umr, uacr;
-+	unsigned short umr_best, div_best, uacr_best;
-+	long long t0, t1, t2, t3;
-+
-+	sum = 0;
-+	umr_best = div_best = uacr_best = 0;
-+	div = 1;
-+
-+	if ((port->uartclk % (16 * baud)) == 0) {
-+		quot1[0] = port->uartclk / (16 * baud);
-+		quot1[1] = 16;
-+		quot1[2] = 0;
-+		return quot1;
-+	}
-+
-+	while (1) {
-+		umr = port->uartclk / (baud * div);
-+  		if (umr > 32) {
-+			div++;
-+			continue;
-+		}
-+		if (umr < 4) {
-+			break;
-+		}
-+		for (i = 0; i < 12; i++) {
-+			a[i] = umr;
-+			b[i] = 0;
-+			sum = 0;
-+			for (j = 0; j <= i; j++) {
-+				sum += a[j];
-+			}
-+
-+                        /* the precision could be 1/2^(36) due to the value of t0 */
-+			t0 = 0x1000000000LL;
-+			t1 = (i + 1) * t0;
-+			t2 = (sum * div) * t0;
-+			t3 = div * t0;
-+			do_div(t1, baud);
-+			do_div(t2, port->uartclk);
-+			do_div(t3, (2 * port->uartclk));
-+			err = t1 - t2 - t3;
-+
-+			if (err > 0) {
-+				a[i] += 1;
-+				b[i] = 1;
-+			}
-+		}
-+
-+		uacr = 0;
-+		for (i = 0; i < 12; i++) {
-+			if (b[i] == 1) {
-+				uacr |= 1 << i;
-+			}
-+		}
-+
-+                /* the best value of umr should be near 16, and the value of uacr should better be smaller */
-+		if (abs(umr - 16) < abs(umr_best - 16) || (abs(umr - 16) == abs(umr_best - 16) && uacr_best > uacr)) {
-+			div_best = div;
-+			umr_best = umr;
-+			uacr_best = uacr;
-+		}
-+		div++;
-+	}
-+
-+	quot1[0] = div_best;
-+	quot1[1] = umr_best;
-+	quot1[2] = uacr_best;
-+
-+	return quot1;
-+}
-+#else
- static unsigned int serial8250_get_divisor(struct uart_port *port, unsigned int baud)
- {
- 	unsigned int quot;
-@@ -2228,6 +2309,7 @@ static unsigned int serial8250_get_divisor(struct uart_port *port, unsigned int
- 
- 	return quot;
- }
-+#endif
- 
- static void
- serial8250_set_termios(struct uart_port *port, struct ktermios *termios,
-@@ -2237,6 +2319,9 @@ serial8250_set_termios(struct uart_port *port, struct ktermios *termios,
- 	unsigned char cval, fcr = 0;
- 	unsigned long flags;
- 	unsigned int baud, quot;
-+#if defined(CONFIG_JZSOC) && !defined(CONFIG_SOC_JZ4730)
-+	unsigned short *quot1;
-+#endif
- 
- 	switch (termios->c_cflag & CSIZE) {
- 	case CS5:
-@@ -2271,7 +2356,12 @@ serial8250_set_termios(struct uart_port *port, struct ktermios *termios,
- 	baud = uart_get_baud_rate(port, termios, old,
- 				  port->uartclk / 16 / 0xffff,
- 				  port->uartclk / 16);
-+#if defined(CONFIG_JZSOC) && !defined(CONFIG_SOC_JZ4730)
-+	quot1 = serial8250_get_divisor(port, baud);
-+	quot = quot1[0]; /* not usefull, just let gcc happy */
-+#else
- 	quot = serial8250_get_divisor(port, baud);
-+#endif
- 
- 	/*
- 	 * Oxford Semi 952 rev B workaround
-@@ -2349,6 +2439,10 @@ serial8250_set_termios(struct uart_port *port, struct ktermios *termios,
- 	if (up->capabilities & UART_CAP_UUE)
- 		up->ier |= UART_IER_UUE | UART_IER_RTOIE;
- 
-+#ifdef CONFIG_JZSOC
-+	up->ier |= UART_IER_RTOIE; /* Set this flag, or very slow */
-+#endif
-+
- 	serial_out(up, UART_IER, up->ier);
- 
- 	if (up->capabilities & UART_CAP_EFR) {
-@@ -2383,7 +2477,15 @@ serial8250_set_termios(struct uart_port *port, struct ktermios *termios,
- 		serial_outp(up, UART_LCR, cval | UART_LCR_DLAB);/* set DLAB */
- 	}
- 
-+#if defined(CONFIG_JZSOC) && !defined(CONFIG_SOC_JZ4730)
-+#define UART_UMR  9
-+#define UART_UACR 10
-+	serial_dl_write(up, quot1[0]);
-+	serial_outp(up, UART_UMR, quot1[1]);
-+	serial_outp(up, UART_UACR, quot1[2]);
-+#else
- 	serial_dl_write(up, quot);
-+#endif
- 
- 	/*
- 	 * LCR DLAB must be set to enable 64-byte FIFO mode. If the FCR
--- 
-1.5.6.5
-