imx: move serial driver to drivers/serial

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>

2 files changed, 1 insertions, 228 deletions

diff --git a/cpu/arm920t/imx/Makefile b/cpu/arm920t/imx/Makefile
index 9207ec1bc..d3352deb4 100644
--- a/cpu/arm920t/imx/Makefile
+++ b/cpu/arm920t/imx/Makefile
@@ -25,7 +25,7 @@ include $(TOPDIR)/config.mk
 
 LIB	= $(obj)lib$(SOC).a
 
-COBJS	= generic.o interrupts.o serial.o speed.o
+COBJS	= generic.o interrupts.o speed.o
 
 SRCS	:= $(SOBJS:.o=.S) $(COBJS:.o=.c)
 OBJS	:= $(addprefix $(obj),$(SOBJS) $(COBJS))
diff --git a/cpu/arm920t/imx/serial.c b/cpu/arm920t/imx/serial.c
deleted file mode 100644
index 85f1167e3..000000000
--- a/cpu/arm920t/imx/serial.c
+++ /dev/null
@@ -1,227 +0,0 @@
-/*
- * (c) 2004 Sascha Hauer <sascha@saschahauer.de>
- *
- * 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>
-#if defined (CONFIG_IMX)
-
-#include <asm/arch/imx-regs.h>
-
-#ifndef CONFIG_IMX_SERIAL_NONE
-
-#if defined CONFIG_IMX_SERIAL1
-#define UART_BASE IMX_UART1_BASE
-#elif defined CONFIG_IMX_SERIAL2
-#define UART_BASE IMX_UART2_BASE
-#else
-#error "define CONFIG_IMX_SERIAL1, CONFIG_IMX_SERIAL2 or CONFIG_IMX_SERIAL_NONE"
-#endif
-
-struct imx_serial {
-	volatile uint32_t urxd[16];
-	volatile uint32_t utxd[16];
-	volatile uint32_t ucr1;
-	volatile uint32_t ucr2;
-	volatile uint32_t ucr3;
-	volatile uint32_t ucr4;
-	volatile uint32_t ufcr;
-	volatile uint32_t usr1;
-	volatile uint32_t usr2;
-	volatile uint32_t uesc;
-	volatile uint32_t utim;
-	volatile uint32_t ubir;
-	volatile uint32_t ubmr;
-	volatile uint32_t ubrc;
-	volatile uint32_t bipr[4];
-	volatile uint32_t bmpr[4];
-	volatile uint32_t uts;
-};
-
-DECLARE_GLOBAL_DATA_PTR;
-
-void serial_setbrg (void)
-{
-	serial_init();
-}
-
-extern void imx_gpio_mode(int gpio_mode);
-
-/*
- * Initialise the serial port with the given baudrate. The settings
- * are always 8 data bits, no parity, 1 stop bit, no start bits.
- *
- */
-int serial_init (void)
-{
-	volatile struct imx_serial* base = (struct imx_serial *)UART_BASE;
-	unsigned int ufcr_rfdiv;
-	unsigned int refclk;
-
-#ifdef CONFIG_IMX_SERIAL1
-	imx_gpio_mode(PC11_PF_UART1_TXD);
-	imx_gpio_mode(PC12_PF_UART1_RXD);
-#else
-	imx_gpio_mode(PB30_PF_UART2_TXD);
-	imx_gpio_mode(PB31_PF_UART2_RXD);
-#endif
-
-	/* Disable UART */
-	base->ucr1 &= ~UCR1_UARTEN;
-
-	/* Set to default POR state */
-
-	base->ucr1 = 0x00000004;
-	base->ucr2 = 0x00000000;
-	base->ucr3 = 0x00000000;
-	base->ucr4 = 0x00008040;
-	base->uesc = 0x0000002B;
-	base->utim = 0x00000000;
-	base->ubir = 0x00000000;
-	base->ubmr = 0x00000000;
-	base->uts  = 0x00000000;
-	/* Set clocks */
-	base->ucr4 |= UCR4_REF16;
-
-	/* Configure FIFOs */
-	base->ufcr = 0xa81;
-
-	/* set the baud rate.
-	 *
-	 * baud * 16   x
-	 * --------- = -
-	 *  refclk     y
-	 *
-	 * x - 1 = UBIR
-	 * y - 1 = UBMR
-	 *
-	 * each register is 16 bits wide. refclk max is 96 MHz
-	 *
-	 */
-
-	ufcr_rfdiv = ((base->ufcr) & UFCR_RFDIV) >> 7;
-	if (ufcr_rfdiv == 6)
-		ufcr_rfdiv = 7;
-	else
-		ufcr_rfdiv = 6 - ufcr_rfdiv;
-
-	refclk = get_PERCLK1();
-	refclk /= ufcr_rfdiv;
-
-	/* Set the numerator value minus one of the BRM ratio */
-	base->ubir = (gd->baudrate / 100) - 1;
-
-	/* Set the denominator value minus one of the BRM ratio	*/
-	base->ubmr = (refclk/(16 * 100)) - 1;
-
-	/* Set to 8N1 */
-	base->ucr2 &= ~UCR2_PREN;
-	base->ucr2 |= UCR2_WS;
-	base->ucr2 &= ~UCR2_STPB;
-
-	/* Ignore RTS */
-	base->ucr2 |= UCR2_IRTS;
-
-	/* Enable UART */
-	base->ucr1 |= UCR1_UARTEN | UCR1_UARTCLKEN;
-
-	/* Enable FIFOs */
-	base->ucr2 |= UCR2_SRST | UCR2_RXEN | UCR2_TXEN;
-
-	/* Clear status flags */
-	base->usr2 |= USR2_ADET  |
-		      USR2_DTRF  |
-		      USR2_IDLE  |
-		      USR2_IRINT |
-		      USR2_WAKE  |
-		      USR2_RTSF  |
-		      USR2_BRCD  |
-		      USR2_ORE;
-
-	/* Clear status flags */
-	base->usr1 |= USR1_PARITYERR |
-		      USR1_RTSD      |
-		      USR1_ESCF      |
-		      USR1_FRAMERR   |
-		      USR1_AIRINT    |
-		      USR1_AWAKE;
-	return (0);
-}
-
-/*
- * Read a single byte from the serial port. Returns 1 on success, 0
- * otherwise. When the function is successful, the character read is
- * written into its argument c.
- */
-int serial_getc (void)
-{
-	volatile struct imx_serial* base = (struct imx_serial *)UART_BASE;
-	unsigned char ch;
-
-	while(base->uts & UTS_RXEMPTY);
-
-	ch = (char)base->urxd[0];
-
-	return ch;
-}
-
-#ifdef CONFIG_HWFLOW
-static int hwflow = 0; /* turned off by default */
-int hwflow_onoff(int on)
-{
-}
-#endif
-
-/*
- * Output a single byte to the serial port.
- */
-void serial_putc (const char c)
-{
-	volatile struct imx_serial* base = (struct imx_serial *)UART_BASE;
-
-	/* Wait for Tx FIFO not full */
-	while (base->uts & UTS_TXFULL);
-
-	base->utxd[0] = c;
-
-	/* If \n, also do \r */
-	if (c == '\n')
-		serial_putc ('\r');
-}
-
-/*
- * Test whether a character is in the RX buffer
- */
-int serial_tstc (void)
-{
-	volatile struct imx_serial* base = (struct imx_serial *)UART_BASE;
-
-	/* If receive fifo is empty, return false */
-	if (base->uts & UTS_RXEMPTY)
-		return 0;
-	return 1;
-}
-
-void
-serial_puts (const char *s)
-{
-	while (*s) {
-		serial_putc (*s++);
-	}
-}
-#endif /* CONFIG_IMX_SERIAL_NONE */
-#endif /* defined CONFIG_IMX */