diff options
Diffstat (limited to 'arch/ppc/cpu/mpc5xxx/serial.c')
| -rw-r--r-- | arch/ppc/cpu/mpc5xxx/serial.c | 363 |
1 files changed, 0 insertions, 363 deletions
diff --git a/arch/ppc/cpu/mpc5xxx/serial.c b/arch/ppc/cpu/mpc5xxx/serial.c deleted file mode 100644 index 6675988..0000000 --- a/arch/ppc/cpu/mpc5xxx/serial.c +++ /dev/null @@ -1,363 +0,0 @@ -/* - * (C) Copyright 2000 - 2003 - * Wolfgang Denk, DENX Software Engineering, wd@denx.de. - * - * See file CREDITS for list of people who contributed to this - * project. - * - * 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 - * - * Hacked for MPC8260 by Murray.Jensen@cmst.csiro.au, 19-Oct-00, with - * changes based on the file arch/ppc/mbxboot/m8260_tty.c from the - * Linux/PPC sources (m8260_tty.c had no copyright info in it). - * - * Martin Krause, 8 Jun 2006 - * Added CONFIG_SERIAL_MULTI support - */ - -/* - * Minimal serial functions needed to use one of the PSC ports - * as serial console interface. - */ - -#include <common.h> -#include <mpc5xxx.h> - -#if defined (CONFIG_SERIAL_MULTI) -#include <serial.h> -#endif - -DECLARE_GLOBAL_DATA_PTR; - -#if defined(CONFIG_PSC_CONSOLE) - -#if CONFIG_PSC_CONSOLE == 1 -#define PSC_BASE MPC5XXX_PSC1 -#elif CONFIG_PSC_CONSOLE == 2 -#define PSC_BASE MPC5XXX_PSC2 -#elif CONFIG_PSC_CONSOLE == 3 -#define PSC_BASE MPC5XXX_PSC3 -#elif CONFIG_PSC_CONSOLE == 4 -#define PSC_BASE MPC5XXX_PSC4 -#elif CONFIG_PSC_CONSOLE == 5 -#define PSC_BASE MPC5XXX_PSC5 -#elif CONFIG_PSC_CONSOLE == 6 -#define PSC_BASE MPC5XXX_PSC6 -#else -#error CONFIG_PSC_CONSOLE must be in 1 ... 6 -#endif - -#if defined(CONFIG_SERIAL_MULTI) && !defined(CONFIG_PSC_CONSOLE2) -#error you must define CONFIG_PSC_CONSOLE2 if CONFIG_SERIAL_MULTI is set -#endif - -#if defined(CONFIG_SERIAL_MULTI) -#if CONFIG_PSC_CONSOLE2 == 1 -#define PSC_BASE2 MPC5XXX_PSC1 -#elif CONFIG_PSC_CONSOLE2 == 2 -#define PSC_BASE2 MPC5XXX_PSC2 -#elif CONFIG_PSC_CONSOLE2 == 3 -#define PSC_BASE2 MPC5XXX_PSC3 -#elif CONFIG_PSC_CONSOLE2 == 4 -#define PSC_BASE2 MPC5XXX_PSC4 -#elif CONFIG_PSC_CONSOLE2 == 5 -#define PSC_BASE2 MPC5XXX_PSC5 -#elif CONFIG_PSC_CONSOLE2 == 6 -#define PSC_BASE2 MPC5XXX_PSC6 -#else -#error CONFIG_PSC_CONSOLE2 must be in 1 ... 6 -#endif -#endif /* CONFIG_SERIAL_MULTI */ - -#if defined(CONFIG_SERIAL_MULTI) -int serial_init_dev (unsigned long dev_base) -#else -int serial_init (void) -#endif -{ -#if defined(CONFIG_SERIAL_MULTI) - volatile struct mpc5xxx_psc *psc = (struct mpc5xxx_psc *)dev_base; -#else - volatile struct mpc5xxx_psc *psc = (struct mpc5xxx_psc *)PSC_BASE; -#endif - unsigned long baseclk; - int div; - - /* reset PSC */ - psc->command = PSC_SEL_MODE_REG_1; - - /* select clock sources */ - psc->psc_clock_select = 0; - baseclk = (gd->ipb_clk + 16) / 32; - - /* switch to UART mode */ - psc->sicr = 0; - - /* configure parity, bit length and so on */ - psc->mode = PSC_MODE_8_BITS | PSC_MODE_PARNONE; - psc->mode = PSC_MODE_ONE_STOP; - - /* set up UART divisor */ - div = (baseclk + (gd->baudrate/2)) / gd->baudrate; - psc->ctur = (div >> 8) & 0xff; - psc->ctlr = div & 0xff; - - /* disable all interrupts */ - psc->psc_imr = 0; - - /* reset and enable Rx/Tx */ - psc->command = PSC_RST_RX; - psc->command = PSC_RST_TX; - psc->command = PSC_RX_ENABLE | PSC_TX_ENABLE; - - return (0); -} - -#if defined(CONFIG_SERIAL_MULTI) -void serial_putc_dev (unsigned long dev_base, const char c) -#else -void serial_putc(const char c) -#endif -{ -#if defined(CONFIG_SERIAL_MULTI) - volatile struct mpc5xxx_psc *psc = (struct mpc5xxx_psc *)dev_base; -#else - volatile struct mpc5xxx_psc *psc = (struct mpc5xxx_psc *)PSC_BASE; -#endif - - if (c == '\n') -#if defined(CONFIG_SERIAL_MULTI) - serial_putc_dev (dev_base, '\r'); -#else - serial_putc('\r'); -#endif - - /* Wait for last character to go. */ - while (!(psc->psc_status & PSC_SR_TXEMP)) - ; - - psc->psc_buffer_8 = c; -} - -#if defined(CONFIG_SERIAL_MULTI) -void serial_putc_raw_dev(unsigned long dev_base, const char c) -#else -void serial_putc_raw(const char c) -#endif -{ -#if defined(CONFIG_SERIAL_MULTI) - volatile struct mpc5xxx_psc *psc = (struct mpc5xxx_psc *)dev_base; -#else - volatile struct mpc5xxx_psc *psc = (struct mpc5xxx_psc *)PSC_BASE; -#endif - /* Wait for last character to go. */ - while (!(psc->psc_status & PSC_SR_TXEMP)) - ; - - psc->psc_buffer_8 = c; -} - - -#if defined(CONFIG_SERIAL_MULTI) -void serial_puts_dev (unsigned long dev_base, const char *s) -#else -void serial_puts (const char *s) -#endif -{ - while (*s) { -#if defined(CONFIG_SERIAL_MULTI) - serial_putc_dev (dev_base, *s++); -#else - serial_putc (*s++); -#endif - } -} - -#if defined(CONFIG_SERIAL_MULTI) -int serial_getc_dev (unsigned long dev_base) -#else -int serial_getc(void) -#endif -{ -#if defined(CONFIG_SERIAL_MULTI) - volatile struct mpc5xxx_psc *psc = (struct mpc5xxx_psc *)dev_base; -#else - volatile struct mpc5xxx_psc *psc = (struct mpc5xxx_psc *)PSC_BASE; -#endif - - /* Wait for a character to arrive. */ - while (!(psc->psc_status & PSC_SR_RXRDY)) - ; - - return psc->psc_buffer_8; -} - -#if defined(CONFIG_SERIAL_MULTI) -int serial_tstc_dev (unsigned long dev_base) -#else -int serial_tstc(void) -#endif -{ -#if defined(CONFIG_SERIAL_MULTI) - volatile struct mpc5xxx_psc *psc = (struct mpc5xxx_psc *)dev_base; -#else - volatile struct mpc5xxx_psc *psc = (struct mpc5xxx_psc *)PSC_BASE; -#endif - - return (psc->psc_status & PSC_SR_RXRDY); -} - -#if defined(CONFIG_SERIAL_MULTI) -void serial_setbrg_dev (unsigned long dev_base) -#else -void serial_setbrg(void) -#endif -{ -#if defined(CONFIG_SERIAL_MULTI) - volatile struct mpc5xxx_psc *psc = (struct mpc5xxx_psc *)dev_base; -#else - volatile struct mpc5xxx_psc *psc = (struct mpc5xxx_psc *)PSC_BASE; -#endif - unsigned long baseclk, div; - - baseclk = (gd->ipb_clk + 16) / 32; - - /* set up UART divisor */ - div = (baseclk + (gd->baudrate/2)) / gd->baudrate; - psc->ctur = (div >> 8) & 0xFF; - psc->ctlr = div & 0xff; -} - -#if defined(CONFIG_SERIAL_MULTI) -void serial_setrts_dev (unsigned long dev_base, int s) -#else -void serial_setrts(int s) -#endif -{ -#if defined(CONFIG_SERIAL_MULTI) - volatile struct mpc5xxx_psc *psc = (struct mpc5xxx_psc *)dev_base; -#else - volatile struct mpc5xxx_psc *psc = (struct mpc5xxx_psc *)PSC_BASE; -#endif - - if (s) { - /* Assert RTS (become LOW) */ - psc->op1 = 0x1; - } - else { - /* Negate RTS (become HIGH) */ - psc->op0 = 0x1; - } -} - -#if defined(CONFIG_SERIAL_MULTI) -int serial_getcts_dev (unsigned long dev_base) -#else -int serial_getcts(void) -#endif -{ -#if defined(CONFIG_SERIAL_MULTI) - volatile struct mpc5xxx_psc *psc = (struct mpc5xxx_psc *)dev_base; -#else - volatile struct mpc5xxx_psc *psc = (struct mpc5xxx_psc *)PSC_BASE; -#endif - - return (psc->ip & 0x1) ? 0 : 1; -} - -#if defined(CONFIG_SERIAL_MULTI) -int serial0_init(void) -{ - return (serial_init_dev(PSC_BASE)); -} - -int serial1_init(void) -{ - return (serial_init_dev(PSC_BASE2)); -} -void serial0_setbrg (void) -{ - serial_setbrg_dev(PSC_BASE); -} -void serial1_setbrg (void) -{ - serial_setbrg_dev(PSC_BASE2); -} - -void serial0_putc(const char c) -{ - serial_putc_dev(PSC_BASE,c); -} - -void serial1_putc(const char c) -{ - serial_putc_dev(PSC_BASE2, c); -} -void serial0_puts(const char *s) -{ - serial_puts_dev(PSC_BASE, s); -} - -void serial1_puts(const char *s) -{ - serial_puts_dev(PSC_BASE2, s); -} - -int serial0_getc(void) -{ - return(serial_getc_dev(PSC_BASE)); -} - -int serial1_getc(void) -{ - return(serial_getc_dev(PSC_BASE2)); -} -int serial0_tstc(void) -{ - return (serial_tstc_dev(PSC_BASE)); -} - -int serial1_tstc(void) -{ - return (serial_tstc_dev(PSC_BASE2)); -} - -struct serial_device serial0_device = -{ - "serial0", - "UART0", - serial0_init, - serial0_setbrg, - serial0_getc, - serial0_tstc, - serial0_putc, - serial0_puts, -}; - -struct serial_device serial1_device = -{ - "serial1", - "UART1", - serial1_init, - serial1_setbrg, - serial1_getc, - serial1_tstc, - serial1_putc, - serial1_puts, -}; -#endif /* CONFIG_SERIAL_MULTI */ - -#endif /* CONFIG_PSC_CONSOLE */ |