Merge branch 'master' of git://git.denx.de/u-boot-arm

Small conflict over DRA7XX updates and adding SRAM_SCRATCH_SPACE_ADDR

Conflicts:
	arch/arm/include/asm/arch-omap5/omap.h

Signed-off-by: Tom Rini <trini@ti.com>

4 files changed, 133 insertions, 10 deletions

diff --git a/drivers/serial/Makefile b/drivers/serial/Makefile
index 442b7ea..0f954a5 100644
--- a/drivers/serial/Makefile
+++ b/drivers/serial/Makefile
@@ -53,6 +53,7 @@ COBJS-$(CONFIG_SANDBOX_SERIAL) += sandbox.o
 COBJS-$(CONFIG_SCIF_CONSOLE) += serial_sh.o
 COBJS-$(CONFIG_ZYNQ_SERIAL) += serial_zynq.o
 COBJS-$(CONFIG_BFIN_SERIAL) += serial_bfin.o
+COBJS-$(CONFIG_FSL_LPUART) += serial_lpuart.o
 
 ifndef CONFIG_SPL_BUILD
 COBJS-$(CONFIG_USB_TTY) += usbtty.o
diff --git a/drivers/serial/ns16550.c b/drivers/serial/ns16550.c
index 7f013ab..d77c25f 100644
--- a/drivers/serial/ns16550.c
+++ b/drivers/serial/ns16550.c
@@ -74,13 +74,8 @@ void NS16550_init(NS16550_t com_port, int baud_divisor)
 	defined(CONFIG_AM33XX) || defined(CONFIG_SOC_DA8XX) || \
 	defined(CONFIG_TI814X)
 
-#if defined(CONFIG_APTIX)
-	/* /13 mode so Aptix 6MHz can hit 115200 */
-	serial_out(3, &com_port->mdr1);
-#else
 	/* /16 is proper to hit 115200 with 48MHz */
 	serial_out(0, &com_port->mdr1);
-#endif
 #endif /* CONFIG_OMAP */
 }
 
diff --git a/drivers/serial/serial_lpuart.c b/drivers/serial/serial_lpuart.c
new file mode 100644
index 0000000..51d5666
--- /dev/null
+++ b/drivers/serial/serial_lpuart.c
@@ -0,0 +1,132 @@
+/*
+ * Copyright 2013 Freescale Semiconductor, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ */
+
+#include <common.h>
+#include <watchdog.h>
+#include <asm/io.h>
+#include <serial.h>
+#include <linux/compiler.h>
+#include <asm/arch/imx-regs.h>
+#include <asm/arch/clock.h>
+
+#define US1_TDRE        (1 << 7)
+#define US1_RDRF        (1 << 5)
+#define UC2_TE          (1 << 3)
+#define UC2_RE          (1 << 2)
+
+DECLARE_GLOBAL_DATA_PTR;
+
+struct lpuart_fsl *base = (struct lpuart_fsl *)LPUART_BASE;
+
+static void lpuart_serial_setbrg(void)
+{
+	u32 clk = mxc_get_clock(MXC_UART_CLK);
+	u16 sbr;
+
+	if (!gd->baudrate)
+		gd->baudrate = CONFIG_BAUDRATE;
+
+	sbr = (u16)(clk / (16 * gd->baudrate));
+	/* place adjustment later - n/32 BRFA */
+
+	__raw_writeb(sbr >> 8, &base->ubdh);
+	__raw_writeb(sbr & 0xff, &base->ubdl);
+}
+
+static int lpuart_serial_getc(void)
+{
+	u8 status;
+
+	while (!(__raw_readb(&base->us1) & US1_RDRF))
+		WATCHDOG_RESET();
+
+	status = __raw_readb(&base->us1);
+	status |= US1_RDRF;
+	__raw_writeb(status, &base->us1);
+
+	return __raw_readb(&base->ud);
+}
+
+static void lpuart_serial_putc(const char c)
+{
+	if (c == '\n')
+		serial_putc('\r');
+
+	while (!(__raw_readb(&base->us1) & US1_TDRE))
+		WATCHDOG_RESET();
+
+	__raw_writeb(c, &base->ud);
+}
+
+/*
+ * Test whether a character is in the RX buffer
+ */
+static int lpuart_serial_tstc(void)
+{
+	if (__raw_readb(&base->urcfifo) == 0)
+		return 0;
+
+	return 1;
+}
+
+/*
+ * Initialise the serial port with the given baudrate. The settings
+ * are always 8 data bits, no parity, 1 stop bit, no start bits.
+ */
+static int lpuart_serial_init(void)
+{
+	u8 ctrl;
+
+	ctrl = __raw_readb(&base->uc2);
+	ctrl &= ~UC2_RE;
+	ctrl &= ~UC2_TE;
+	__raw_writeb(ctrl, &base->uc2);
+
+	__raw_writeb(0, &base->umodem);
+	__raw_writeb(0, &base->uc1);
+
+	/* provide data bits, parity, stop bit, etc */
+
+	serial_setbrg();
+
+	__raw_writeb(UC2_RE | UC2_TE, &base->uc2);
+
+	return 0;
+}
+
+static struct serial_device lpuart_serial_drv = {
+	.name = "lpuart_serial",
+	.start = lpuart_serial_init,
+	.stop = NULL,
+	.setbrg = lpuart_serial_setbrg,
+	.putc = lpuart_serial_putc,
+	.puts = default_serial_puts,
+	.getc = lpuart_serial_getc,
+	.tstc = lpuart_serial_tstc,
+};
+
+void lpuart_serial_initialize(void)
+{
+	serial_register(&lpuart_serial_drv);
+}
+
+__weak struct serial_device *default_serial_console(void)
+{
+	return &lpuart_serial_drv;
+}
diff --git a/drivers/serial/serial_ns16550.c b/drivers/serial/serial_ns16550.c
index b92eef4..3c07da3 100644
--- a/drivers/serial/serial_ns16550.c
+++ b/drivers/serial/serial_ns16550.c
@@ -151,12 +151,7 @@ static int calc_divisor (NS16550_t port)
 	}
 #endif
 
-#ifdef CONFIG_APTIX
-#define MODE_X_DIV 13
-#else
 #define MODE_X_DIV 16
-#endif
-
 	/* Compute divisor value. Normally, we should simply return:
 	 *   CONFIG_SYS_NS16550_CLK) / MODE_X_DIV / gd->baudrate
 	 * but we need to round that value by adding 0.5.