diff options
| -rw-r--r-- | doc/driver-model/UDM-serial.txt | 16 | ||||
| -rw-r--r-- | drivers/serial/Makefile | 1 | ||||
| -rw-r--r-- | drivers/serial/serial.c | 2 | ||||
| -rw-r--r-- | drivers/serial/serial_s3c44b0.c | 216 |
4 files changed, 6 insertions, 229 deletions
diff --git a/doc/driver-model/UDM-serial.txt b/doc/driver-model/UDM-serial.txt index 1011c32..54f853e 100644 --- a/doc/driver-model/UDM-serial.txt +++ b/doc/driver-model/UDM-serial.txt @@ -148,32 +148,28 @@ III) Analysis of in-tree drivers -------------------- This driver, being quite ad-hoc might need some work to bring back to shape. - 22) serial_s3c44b0.c - -------------------- - No support for CONFIG_SERIAL_MULTI. Simple conversion possible. - - 23) serial_s5p.c + 22) serial_s5p.c ---------------- No support for CONFIG_SERIAL_MULTI. Simple conversion possible. - 24) serial_sa1100.c + 23) serial_sa1100.c ------------------- No support for CONFIG_SERIAL_MULTI. Simple conversion possible. - 25) serial_sh.c + 24) serial_sh.c --------------- No support for CONFIG_SERIAL_MULTI. Simple conversion possible. - 26) serial_xuartlite.c + 25) serial_xuartlite.c ---------------------- No support for CONFIG_SERIAL_MULTI. Simple conversion possible. - 27) usbtty.c + 26) usbtty.c ------------ This driver seems very complicated and entangled with USB framework. The conversion might be complicated here. - 28) arch/powerpc/cpu/mpc512x/serial.c + 27) arch/powerpc/cpu/mpc512x/serial.c ------------------------------------- This driver supports CONFIG_SERIAL_MULTI. This driver will need to be moved to proper place. diff --git a/drivers/serial/Makefile b/drivers/serial/Makefile index 4c45bfa..e1fd7a5 100644 --- a/drivers/serial/Makefile +++ b/drivers/serial/Makefile @@ -31,7 +31,6 @@ COBJS-$(CONFIG_PL011_SERIAL) += serial_pl01x.o COBJS-$(CONFIG_PXA_SERIAL) += serial_pxa.o COBJS-$(CONFIG_SA1100_SERIAL) += serial_sa1100.o COBJS-$(CONFIG_S3C24X0_SERIAL) += serial_s3c24x0.o -COBJS-$(CONFIG_S3C44B0_SERIAL) += serial_s3c44b0.o COBJS-$(CONFIG_XILINX_UARTLITE) += serial_xuartlite.o COBJS-$(CONFIG_SANDBOX_SERIAL) += sandbox.o COBJS-$(CONFIG_SCIF_CONSOLE) += serial_sh.o diff --git a/drivers/serial/serial.c b/drivers/serial/serial.c index 35dc61e..df2b84a 100644 --- a/drivers/serial/serial.c +++ b/drivers/serial/serial.c @@ -156,7 +156,6 @@ serial_initfunc(lh7a40x_serial_initialize); serial_initfunc(max3100_serial_initialize); serial_initfunc(mxc_serial_initialize); serial_initfunc(pl01x_serial_initialize); -serial_initfunc(s3c44b0_serial_initialize); serial_initfunc(sa1100_serial_initialize); serial_initfunc(sh_serial_initialize); serial_initfunc(arm_dcc_initialize); @@ -250,7 +249,6 @@ void serial_initialize(void) max3100_serial_initialize(); mxc_serial_initialize(); pl01x_serial_initialize(); - s3c44b0_serial_initialize(); sa1100_serial_initialize(); sh_serial_initialize(); arm_dcc_initialize(); diff --git a/drivers/serial/serial_s3c44b0.c b/drivers/serial/serial_s3c44b0.c deleted file mode 100644 index 2a07498..0000000 --- a/drivers/serial/serial_s3c44b0.c +++ /dev/null @@ -1,216 +0,0 @@ -pyright 2002 - * Sysgo Real-Time Solutions, GmbH <www.elinos.com> - * Marius Groeger <mgroeger@sysgo.de> - * - * (C) Copyright 2002 - * ght 2002-2004 - * Wolfgang Denk, DENX Software Engineering, <wd@denx.de> - * - * (C) Copyright 2002 - * Sysgo Real-Time Solutions, GmbH <www.elinos.com> - * Marius Groeger <mgroeger@sysgo.de> - * - * (C) Copyright 2002 - * Sysgo Real-Time Solutions, GmbH <www.elinos.com> - * Alex Zuepke <azu@sysgo.de> - * - * Copyright (C) 1999 2000 2001 Erik Mouw (J.A.K.Mouw@its.tudelft.nl) - * - * SPDX-License-Identifier: GPL-2.0+ - */ - -#include <common.h> -#include <asm/hardware.h> - -DECLARE_GLOBAL_DATA_PTR; - -/* flush serial input queue. returns 0 on success or negative error - * number otherwise - */ -static int serial_flush_input(void) -{ - volatile u32 tmp; - - /* keep on reading as long as the receiver is not empty */ - while(UTRSTAT0&0x01) { - tmp = REGB(URXH0); - } - - return 0; -} - - -/* flush output queue. returns 0 on success or negative error number - * otherwise - */ -static int serial_flush_output(void) -{ - /* wait until the transmitter is no longer busy */ - while(!(UTRSTAT0 & 0x02)) { - } - - return 0; -} - - -static void s3c44b0_serial_setbrg(void) -{ - u32 divisor = 0; - - /* get correct divisor */ - switch(gd->baudrate) { - - case 1200: -#if CONFIG_S3C44B0_CLOCK_SPEED==66 - divisor = 3124; -#elif CONFIG_S3C44B0_CLOCK_SPEED==75 - divisor = 3905; -#else -# error CONFIG_S3C44B0_CLOCK_SPEED undefined -#endif - break; - - case 9600: -#if CONFIG_S3C44B0_CLOCK_SPEED==66 - divisor = 390; -#elif CONFIG_S3C44B0_CLOCK_SPEED==75 - divisor = 487; -#else -# error CONFIG_S3C44B0_CLOCK_SPEED undefined -#endif - break; - - case 19200: -#if CONFIG_S3C44B0_CLOCK_SPEED==66 - divisor = 194; -#elif CONFIG_S3C44B0_CLOCK_SPEED==75 - divisor = 243; -#else -# error CONFIG_S3C44B0_CLOCK_SPEED undefined -#endif - break; - - case 38400: -#if CONFIG_S3C44B0_CLOCK_SPEED==66 - divisor = 97; -#elif CONFIG_S3C44B0_CLOCK_SPEED==75 - divisor = 121; -#else -# error CONFIG_S3C44B0_CLOCK_SPEED undefined -#endif /* break; */ - - case 57600: -#if CONFIG_S3C44B0_CLOCK_SPEED==66 - divisor = 64; -#elif CONFIG_S3C44B0_CLOCK_SPEED==75 - divisor = 80; -#else -# error CONFIG_S3C44B0_CLOCK_SPEED undefined -#endif /* break; */ - - case 115200: -#if CONFIG_S3C44B0_CLOCK_SPEED==66 - divisor = 32; -#elif CONFIG_S3C44B0_CLOCK_SPEED==75 - divisor = 40; -#else -# error CONFIG_S3C44B0_CLOCK_SPEED undefined -#endif /* break; */ - } - - serial_flush_output(); - serial_flush_input(); - UFCON0 = 0x0; - ULCON0 = 0x03; - UCON0 = 0x05; - UBRDIV0 = divisor; - - UFCON1 = 0x0; - ULCON1 = 0x03; - UCON1 = 0x05; - UBRDIV1 = divisor; - - for(divisor=0; divisor<100; divisor++) { - /* NOP */ - } -} - - -/* - * 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 s3c44b0_serial_init(void) -{ - serial_setbrg (); - - return (0); -} - - -/* - * Output a single byte to the serial port. - */ -static void s3c44b0_serial_putc(const char c) -{ - /* wait for room in the transmit FIFO */ - while(!(UTRSTAT0 & 0x02)); - - UTXH0 = (unsigned char)c; - - /* - to be polite with serial console add a line feed - to the carriage return character - */ - if (c=='\n') - serial_putc('\r'); -} - -/* - * Read a single byte from the serial port. Returns 1 on success, 0 - * otherwise. When the function is succesfull, the character read is - * written into its argument c. - */ -static int s3c44b0_serial_tstc(void) -{ - return (UTRSTAT0 & 0x01); -} - -/* - * Read a single byte from the serial port. Returns 1 on success, 0 - * otherwise. When the function is succesfull, the character read is - * written into its argument c. - */ -static int s3c44b0_serial_getc(void) -{ - int rv; - - for(;;) { - rv = s3c44b0_serial_tstc(); - - if(rv > 0) - return URXH0; - } -} - -static struct serial_device s3c44b0_serial_drv = { - .name = "s3c44b0_serial", - .start = s3c44b0_serial_init, - .stop = NULL, - .setbrg = s3c44b0_serial_setbrg, - .putc = s3c44b0_serial_putc, - .puts = default_serial_puts, - .getc = s3c44b0_serial_getc, - .tstc = s3c44b0_serial_tstc, -}; - -void s3c44b0_serial_initialize(void) -{ - serial_register(&s3c44b0_serial_drv); -} - -__weak struct serial_device *default_serial_console(void) -{ - return &s3c44b0_serial_drv; -} |