X-Git-Url: http://review.tizen.org/git/?a=blobdiff_plain;f=drivers%2Fserial%2Fserial_xuartlite.c;h=ef6371e66eccaf6e890eb852b70f25487a987b88;hb=f2302d4430e7f3f48308d6a585320fe96af8afbd;hp=d678ab6b766e46eece567eb714f4a9140af0c39c;hpb=6a40ef62c4300e9f606deef0a4618cbc4b514a51;p=platform%2Fkernel%2Fu-boot.git diff --git a/drivers/serial/serial_xuartlite.c b/drivers/serial/serial_xuartlite.c index d678ab6..ef6371e 100644 --- a/drivers/serial/serial_xuartlite.c +++ b/drivers/serial/serial_xuartlite.c @@ -1,6 +1,8 @@ /* - * (C) Copyright 2004 Atmark Techno, Inc. + * (C) Copyright 2008 Michal Simek + * Clean driver and add xilinx constant from header file * + * (C) Copyright 2004 Atmark Techno, Inc. * Yasushi SHOJI * * See file CREDITS for list of people who contributed to this @@ -13,7 +15,7 @@ * * 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 + * 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 @@ -23,19 +25,19 @@ */ #include +#include -#ifdef CONFIG_XILINX_UARTLITE +#define RX_FIFO_OFFSET 0 /* receive FIFO, read only */ +#define TX_FIFO_OFFSET 4 /* transmit FIFO, write only */ +#define STATUS_REG_OFFSET 8 /* status register, read only */ -#include +#define SR_TX_FIFO_FULL 0x08 /* transmit FIFO full */ +#define SR_RX_FIFO_VALID_DATA 0x01 /* data in receive FIFO */ +#define SR_RX_FIFO_FULL 0x02 /* receive FIFO full */ -/* FIXME: we should convert these to in32 and out32 */ -#define IO_WORD(offset) (*(volatile unsigned long *)(offset)) -#define IO_SERIAL(offset) IO_WORD(CONFIG_SERIAL_BASE + (offset)) - -#define IO_SERIAL_RX_FIFO IO_SERIAL(XUL_RX_FIFO_OFFSET) -#define IO_SERIAL_TX_FIFO IO_SERIAL(XUL_TX_FIFO_OFFSET) -#define IO_SERIAL_STATUS IO_SERIAL(XUL_STATUS_REG_OFFSET) -#define IO_SERIAL_CONTROL IO_SERIAL(XUL_CONTROL_REG_OFFSET) +#define UARTLITE_STATUS (CONFIG_SERIAL_BASE + STATUS_REG_OFFSET) +#define UARTLITE_TX_FIFO (CONFIG_SERIAL_BASE + TX_FIFO_OFFSET) +#define UARTLITE_RX_FIFO (CONFIG_SERIAL_BASE + RX_FIFO_OFFSET) int serial_init(void) { @@ -50,9 +52,15 @@ void serial_setbrg(void) void serial_putc(const char c) { - if (c == '\n') serial_putc('\r'); - while (IO_SERIAL_STATUS & XUL_SR_TX_FIFO_FULL); - IO_SERIAL_TX_FIFO = (unsigned char) (c & 0xff); + if (c == '\n') + serial_putc('\r'); +<<<<<<< .merge_file_kaofiJ + while (in_be32((void *)UARTLITE_STATUS) & SR_TX_FIFO_FULL); + out_be32((void *)UARTLITE_TX_FIFO, (unsigned char) (c & 0xff)); +======= + while (in_be32((u32 *) UARTLITE_STATUS) & SR_TX_FIFO_FULL); + out_be32((u32 *) UARTLITE_TX_FIFO, (unsigned char) (c & 0xff)); +>>>>>>> .merge_file_zSz9BG } void serial_puts(const char * s) @@ -64,13 +72,20 @@ void serial_puts(const char * s) int serial_getc(void) { - while (!(IO_SERIAL_STATUS & XUL_SR_RX_FIFO_VALID_DATA)); - return IO_SERIAL_RX_FIFO & 0xff; +<<<<<<< .merge_file_kaofiJ + while (!(in_be32((void *)UARTLITE_STATUS) & SR_RX_FIFO_VALID_DATA)); + return in_be32((void *)UARTLITE_RX_FIFO) & 0xff; +======= + while (!(in_be32((u32 *) UARTLITE_STATUS) & SR_RX_FIFO_VALID_DATA)); + return in_be32((u32 *) UARTLITE_RX_FIFO) & 0xff; +>>>>>>> .merge_file_zSz9BG } int serial_tstc(void) { - return (IO_SERIAL_STATUS & XUL_SR_RX_FIFO_VALID_DATA); +<<<<<<< .merge_file_kaofiJ + return (in_be32((void *)UARTLITE_STATUS) & SR_RX_FIFO_VALID_DATA); +======= + return (in_be32((u32 *) UARTLITE_STATUS) & SR_RX_FIFO_VALID_DATA); +>>>>>>> .merge_file_zSz9BG } - -#endif /* CONFIG_MICROBLZE */