diff options
Diffstat (limited to 'drivers/serial')
-rw-r--r-- | drivers/serial/cpm_uart/cpm_uart_cpm2.c | 2 | ||||
-rw-r--r-- | drivers/serial/mcfserial.c | 54 | ||||
-rw-r--r-- | drivers/serial/mpc52xx_uart.c | 469 | ||||
-rw-r--r-- | drivers/serial/serial_cs.c | 67 | ||||
-rw-r--r-- | drivers/serial/sh-sci.c | 6 | ||||
-rw-r--r-- | drivers/serial/sh-sci.h | 37 |
6 files changed, 525 insertions, 110 deletions
diff --git a/drivers/serial/cpm_uart/cpm_uart_cpm2.c b/drivers/serial/cpm_uart/cpm_uart_cpm2.c index b691d3e14754..787a8f134677 100644 --- a/drivers/serial/cpm_uart/cpm_uart_cpm2.c +++ b/drivers/serial/cpm_uart/cpm_uart_cpm2.c @@ -282,7 +282,7 @@ void cpm_uart_freebuf(struct uart_cpm_port *pinfo) } /* Setup any dynamic params in the uart desc */ -int cpm_uart_init_portdesc(void) +int __init cpm_uart_init_portdesc(void) { #if defined(CONFIG_SERIAL_CPM_SMC1) || defined(CONFIG_SERIAL_CPM_SMC2) u32 addr; diff --git a/drivers/serial/mcfserial.c b/drivers/serial/mcfserial.c index aee1b31f1a1c..3db206d29b33 100644 --- a/drivers/serial/mcfserial.c +++ b/drivers/serial/mcfserial.c @@ -60,7 +60,8 @@ struct timer_list mcfrs_timer_struct; #if defined(CONFIG_HW_FEITH) #define CONSOLE_BAUD_RATE 38400 #define DEFAULT_CBAUD B38400 -#elif defined(CONFIG_MOD5272) || defined(CONFIG_M5208EVB) || defined(CONFIG_M5329EVB) +#elif defined(CONFIG_MOD5272) || defined(CONFIG_M5208EVB) || \ + defined(CONFIG_M5329EVB) || defined(CONFIG_GILBARCO) #define CONSOLE_BAUD_RATE 115200 #define DEFAULT_CBAUD B115200 #elif defined(CONFIG_ARNEWSH) || defined(CONFIG_FREESCALE) || \ @@ -109,12 +110,30 @@ static struct mcf_serial mcfrs_table[] = { .irq = IRQBASE, .flags = ASYNC_BOOT_AUTOCONF, }, +#ifdef MCFUART_BASE2 { /* ttyS1 */ .magic = 0, .addr = (volatile unsigned char *) (MCF_MBAR+MCFUART_BASE2), .irq = IRQBASE+1, .flags = ASYNC_BOOT_AUTOCONF, }, +#endif +#ifdef MCFUART_BASE3 + { /* ttyS2 */ + .magic = 0, + .addr = (volatile unsigned char *) (MCF_MBAR+MCFUART_BASE3), + .irq = IRQBASE+2, + .flags = ASYNC_BOOT_AUTOCONF, + }, +#endif +#ifdef MCFUART_BASE4 + { /* ttyS3 */ + .magic = 0, + .addr = (volatile unsigned char *) (MCF_MBAR+MCFUART_BASE4), + .irq = IRQBASE+3, + .flags = ASYNC_BOOT_AUTOCONF, + }, +#endif }; @@ -1516,6 +1535,22 @@ static void mcfrs_irqinit(struct mcf_serial *info) imrp = (volatile unsigned long *) (MCF_MBAR + MCFICM_INTC0 + MCFINTC_IMRL); *imrp &= ~((1 << (info->irq - MCFINT_VECBASE)) | 1); +#if defined(CONFIG_M527x) + { + /* + * External Pin Mask Setting & Enable External Pin for Interface + * mrcbis@aliceposta.it + */ + unsigned short *serpin_enable_mask; + serpin_enable_mask = (MCF_IPSBAR + MCF_GPIO_PAR_UART); + if (info->line == 0) + *serpin_enable_mask |= UART0_ENABLE_MASK; + else if (info->line == 1) + *serpin_enable_mask |= UART1_ENABLE_MASK; + else if (info->line == 2) + *serpin_enable_mask |= UART2_ENABLE_MASK; + } +#endif #elif defined(CONFIG_M520x) volatile unsigned char *icrp, *uartp; volatile unsigned long *imrp; @@ -1713,7 +1748,7 @@ mcfrs_init(void) /* Initialize the tty_driver structure */ mcfrs_serial_driver->owner = THIS_MODULE; mcfrs_serial_driver->name = "ttyS"; - mcfrs_serial_driver->driver_name = "serial"; + mcfrs_serial_driver->driver_name = "mcfserial"; mcfrs_serial_driver->major = TTY_MAJOR; mcfrs_serial_driver->minor_start = 64; mcfrs_serial_driver->type = TTY_DRIVER_TYPE_SERIAL; @@ -1797,10 +1832,23 @@ void mcfrs_init_console(void) uartp[MCFUART_UMR] = MCFUART_MR1_PARITYNONE | MCFUART_MR1_CS8; uartp[MCFUART_UMR] = MCFUART_MR2_STOP1; +#ifdef CONFIG_M5272 +{ + /* + * For the MCF5272, also compute the baudrate fraction. + */ + int fraction = MCF_BUSCLK - (clk * 32 * mcfrs_console_baud); + fraction *= 16; + fraction /= (32 * mcfrs_console_baud); + uartp[MCFUART_UFPD] = (fraction & 0xf); /* set fraction */ + clk = (MCF_BUSCLK / mcfrs_console_baud) / 32; +} +#else clk = ((MCF_BUSCLK / mcfrs_console_baud) + 16) / 32; /* set baud */ +#endif + uartp[MCFUART_UBG1] = (clk & 0xff00) >> 8; /* set msb baud */ uartp[MCFUART_UBG2] = (clk & 0xff); /* set lsb baud */ - uartp[MCFUART_UCSR] = MCFUART_UCSR_RXCLKTIMER | MCFUART_UCSR_TXCLKTIMER; uartp[MCFUART_UCR] = MCFUART_UCR_RXENABLE | MCFUART_UCR_TXENABLE; diff --git a/drivers/serial/mpc52xx_uart.c b/drivers/serial/mpc52xx_uart.c index 4f80c5b4a753..6dd579ed9777 100644 --- a/drivers/serial/mpc52xx_uart.c +++ b/drivers/serial/mpc52xx_uart.c @@ -1,6 +1,4 @@ /* - * drivers/serial/mpc52xx_uart.c - * * Driver for the PSC of the Freescale MPC52xx PSCs configured as UARTs. * * FIXME According to the usermanual the status bits in the status register @@ -14,18 +12,20 @@ * * * Maintainer : Sylvain Munaut <tnt@246tNt.com> - * + * * Some of the code has been inspired/copied from the 2.4 code written * by Dale Farnsworth <dfarnsworth@mvista.com>. - * - * Copyright (C) 2004-2005 Sylvain Munaut <tnt@246tNt.com> + * + * Copyright (C) 2006 Secret Lab Technologies Ltd. + * Grant Likely <grant.likely@secretlab.ca> + * Copyright (C) 2004-2006 Sylvain Munaut <tnt@246tNt.com> * Copyright (C) 2003 MontaVista, Software, Inc. - * + * * This file is licensed under the terms of the GNU General Public License * version 2. This program is licensed "as is" without any warranty of any * kind, whether express or implied. */ - + /* Platform device Usage : * * Since PSCs can have multiple function, the correct driver for each one @@ -44,7 +44,24 @@ * will be mapped to. */ -#include <linux/platform_device.h> +/* OF Platform device Usage : + * + * This driver is only used for PSCs configured in uart mode. The device + * tree will have a node for each PSC in uart mode w/ device_type = "serial" + * and "mpc52xx-psc-uart" in the compatible string + * + * By default, PSC devices are enumerated in the order they are found. However + * a particular PSC number can be forces by adding 'device_no = <port#>' + * to the device node. + * + * The driver init all necessary registers to place the PSC in uart mode without + * DCD. However, the pin multiplexing aren't changed and should be set either + * by the bootloader or in the platform init code. + */ + +#undef DEBUG + +#include <linux/device.h> #include <linux/module.h> #include <linux/tty.h> #include <linux/serial.h> @@ -54,6 +71,12 @@ #include <asm/delay.h> #include <asm/io.h> +#if defined(CONFIG_PPC_MERGE) +#include <asm/of_platform.h> +#else +#include <linux/platform_device.h> +#endif + #include <asm/mpc52xx.h> #include <asm/mpc52xx_psc.h> @@ -80,6 +103,12 @@ static struct uart_port mpc52xx_uart_ports[MPC52xx_PSC_MAXNUM]; * it's cleared, then a memset(...,0,...) should be added to * the console_init */ +#if defined(CONFIG_PPC_MERGE) +/* lookup table for matching device nodes to index numbers */ +static struct device_node *mpc52xx_uart_nodes[MPC52xx_PSC_MAXNUM]; + +static void mpc52xx_uart_of_enumerate(void); +#endif #define PSC(port) ((struct mpc52xx_psc __iomem *)((port)->membase)) @@ -96,32 +125,40 @@ static irqreturn_t mpc52xx_uart_int(int irq,void *dev_id); #define uart_console(port) (0) #endif +#if defined(CONFIG_PPC_MERGE) +static struct of_device_id mpc52xx_uart_of_match[] = { + { .type = "serial", .compatible = "mpc52xx-psc-uart", }, + { .type = "serial", .compatible = "mpc5200-psc", }, /* Efika only! */ + {}, +}; +#endif + /* ======================================================================== */ /* UART operations */ /* ======================================================================== */ -static unsigned int +static unsigned int mpc52xx_uart_tx_empty(struct uart_port *port) { int status = in_be16(&PSC(port)->mpc52xx_psc_status); return (status & MPC52xx_PSC_SR_TXEMP) ? TIOCSER_TEMT : 0; } -static void +static void mpc52xx_uart_set_mctrl(struct uart_port *port, unsigned int mctrl) { /* Not implemented */ } -static unsigned int +static unsigned int mpc52xx_uart_get_mctrl(struct uart_port *port) { /* Not implemented */ return TIOCM_CTS | TIOCM_DSR | TIOCM_CAR; } -static void +static void mpc52xx_uart_stop_tx(struct uart_port *port) { /* port->lock taken by caller */ @@ -129,7 +166,7 @@ mpc52xx_uart_stop_tx(struct uart_port *port) out_be16(&PSC(port)->mpc52xx_psc_imr,port->read_status_mask); } -static void +static void mpc52xx_uart_start_tx(struct uart_port *port) { /* port->lock taken by caller */ @@ -137,12 +174,12 @@ mpc52xx_uart_start_tx(struct uart_port *port) out_be16(&PSC(port)->mpc52xx_psc_imr,port->read_status_mask); } -static void +static void mpc52xx_uart_send_xchar(struct uart_port *port, char ch) { unsigned long flags; spin_lock_irqsave(&port->lock, flags); - + port->x_char = ch; if (ch) { /* Make sure tx interrupts are on */ @@ -150,7 +187,7 @@ mpc52xx_uart_send_xchar(struct uart_port *port, char ch) port->read_status_mask |= MPC52xx_PSC_IMR_TXRDY; out_be16(&PSC(port)->mpc52xx_psc_imr,port->read_status_mask); } - + spin_unlock_irqrestore(&port->lock, flags); } @@ -178,7 +215,7 @@ mpc52xx_uart_break_ctl(struct uart_port *port, int ctl) out_8(&PSC(port)->command,MPC52xx_PSC_START_BRK); else out_8(&PSC(port)->command,MPC52xx_PSC_STOP_BRK); - + spin_unlock_irqrestore(&port->lock, flags); } @@ -197,11 +234,11 @@ mpc52xx_uart_startup(struct uart_port *port) /* Reset/activate the port, clear and enable interrupts */ out_8(&psc->command,MPC52xx_PSC_RST_RX); out_8(&psc->command,MPC52xx_PSC_RST_TX); - + out_be32(&psc->sicr,0); /* UART mode DCD ignored */ out_be16(&psc->mpc52xx_psc_clock_select, 0xdd00); /* /16 prescaler on */ - + out_8(&psc->rfcntl, 0x00); out_be16(&psc->rfalarm, 0x1ff); out_8(&psc->tfcntl, 0x07); @@ -209,10 +246,10 @@ mpc52xx_uart_startup(struct uart_port *port) port->read_status_mask |= MPC52xx_PSC_IMR_RXRDY | MPC52xx_PSC_IMR_TXRDY; out_be16(&psc->mpc52xx_psc_imr,port->read_status_mask); - + out_8(&psc->command,MPC52xx_PSC_TX_ENABLE); out_8(&psc->command,MPC52xx_PSC_RX_ENABLE); - + return 0; } @@ -220,19 +257,19 @@ static void mpc52xx_uart_shutdown(struct uart_port *port) { struct mpc52xx_psc __iomem *psc = PSC(port); - + /* Shut down the port, interrupt and all */ out_8(&psc->command,MPC52xx_PSC_RST_RX); out_8(&psc->command,MPC52xx_PSC_RST_TX); - - port->read_status_mask = 0; + + port->read_status_mask = 0; out_be16(&psc->mpc52xx_psc_imr,port->read_status_mask); /* Release interrupt */ free_irq(port->irq, port); } -static void +static void mpc52xx_uart_set_termios(struct uart_port *port, struct termios *new, struct termios *old) { @@ -241,10 +278,10 @@ mpc52xx_uart_set_termios(struct uart_port *port, struct termios *new, unsigned char mr1, mr2; unsigned short ctr; unsigned int j, baud, quot; - + /* Prepare what we're gonna write */ mr1 = 0; - + switch (new->c_cflag & CSIZE) { case CS5: mr1 |= MPC52xx_PSC_MODE_5_BITS; break; @@ -261,8 +298,8 @@ mpc52xx_uart_set_termios(struct uart_port *port, struct termios *new, MPC52xx_PSC_MODE_PARODD : MPC52xx_PSC_MODE_PAREVEN; } else mr1 |= MPC52xx_PSC_MODE_PARNONE; - - + + mr2 = 0; if (new->c_cflag & CSTOPB) @@ -276,7 +313,7 @@ mpc52xx_uart_set_termios(struct uart_port *port, struct termios *new, baud = uart_get_baud_rate(port, new, old, 0, port->uartclk/16); quot = uart_get_divisor(port, baud); ctr = quot & 0xffff; - + /* Get the lock */ spin_lock_irqsave(&port->lock, flags); @@ -290,14 +327,14 @@ mpc52xx_uart_set_termios(struct uart_port *port, struct termios *new, * boot for the console, all stuff is not yet ready to receive at that * time and that just makes the kernel oops */ /* while (j-- && mpc52xx_uart_int_rx_chars(port)); */ - while (!(in_be16(&psc->mpc52xx_psc_status) & MPC52xx_PSC_SR_TXEMP) && + while (!(in_be16(&psc->mpc52xx_psc_status) & MPC52xx_PSC_SR_TXEMP) && --j) udelay(1); if (!j) printk( KERN_ERR "mpc52xx_uart.c: " "Unable to flush RX & TX fifos in-time in set_termios." - "Some chars may have been lost.\n" ); + "Some chars may have been lost.\n" ); /* Reset the TX & RX */ out_8(&psc->command,MPC52xx_PSC_RST_RX); @@ -309,7 +346,7 @@ mpc52xx_uart_set_termios(struct uart_port *port, struct termios *new, out_8(&psc->mode,mr2); out_8(&psc->ctur,ctr >> 8); out_8(&psc->ctlr,ctr & 0xff); - + /* Reenable TX & RX */ out_8(&psc->command,MPC52xx_PSC_TX_ENABLE); out_8(&psc->command,MPC52xx_PSC_RX_ENABLE); @@ -332,7 +369,7 @@ mpc52xx_uart_release_port(struct uart_port *port) port->membase = NULL; } - release_mem_region(port->mapbase, MPC52xx_PSC_SIZE); + release_mem_region(port->mapbase, sizeof(struct mpc52xx_psc)); } static int @@ -341,12 +378,13 @@ mpc52xx_uart_request_port(struct uart_port *port) int err; if (port->flags & UPF_IOREMAP) /* Need to remap ? */ - port->membase = ioremap(port->mapbase, MPC52xx_PSC_SIZE); + port->membase = ioremap(port->mapbase, + sizeof(struct mpc52xx_psc)); if (!port->membase) return -EINVAL; - err = request_mem_region(port->mapbase, MPC52xx_PSC_SIZE, + err = request_mem_region(port->mapbase, sizeof(struct mpc52xx_psc), "mpc52xx_psc_uart") != NULL ? 0 : -EBUSY; if (err && (port->flags & UPF_IOREMAP)) { @@ -373,7 +411,7 @@ mpc52xx_uart_verify_port(struct uart_port *port, struct serial_struct *ser) if ( (ser->irq != port->irq) || (ser->io_type != SERIAL_IO_MEM) || - (ser->baud_base != port->uartclk) || + (ser->baud_base != port->uartclk) || (ser->iomem_base != (void*)port->mapbase) || (ser->hub6 != 0 ) ) return -EINVAL; @@ -404,11 +442,11 @@ static struct uart_ops mpc52xx_uart_ops = { .verify_port = mpc52xx_uart_verify_port }; - + /* ======================================================================== */ /* Interrupt handling */ /* ======================================================================== */ - + static inline int mpc52xx_uart_int_rx_chars(struct uart_port *port) { @@ -435,11 +473,11 @@ mpc52xx_uart_int_rx_chars(struct uart_port *port) flag = TTY_NORMAL; port->icount.rx++; - + if ( status & (MPC52xx_PSC_SR_PE | MPC52xx_PSC_SR_FE | MPC52xx_PSC_SR_RB) ) { - + if (status & MPC52xx_PSC_SR_RB) { flag = TTY_BREAK; uart_handle_break(port); @@ -464,7 +502,7 @@ mpc52xx_uart_int_rx_chars(struct uart_port *port) } tty_flip_buffer_push(tty); - + return in_be16(&PSC(port)->mpc52xx_psc_status) & MPC52xx_PSC_SR_RXRDY; } @@ -509,25 +547,25 @@ mpc52xx_uart_int_tx_chars(struct uart_port *port) return 1; } -static irqreturn_t +static irqreturn_t mpc52xx_uart_int(int irq, void *dev_id) { struct uart_port *port = dev_id; unsigned long pass = ISR_PASS_LIMIT; unsigned int keepgoing; unsigned short status; - + spin_lock(&port->lock); - + /* While we have stuff to do, we continue */ do { /* If we don't find anything to do, we stop */ - keepgoing = 0; - + keepgoing = 0; + /* Read status */ status = in_be16(&PSC(port)->mpc52xx_psc_isr); status &= port->read_status_mask; - + /* Do we need to receive chars ? */ /* For this RX interrupts must be on and some chars waiting */ if ( status & MPC52xx_PSC_IMR_RXRDY ) @@ -537,15 +575,15 @@ mpc52xx_uart_int(int irq, void *dev_id) /* For this, TX must be ready and TX interrupt enabled */ if ( status & MPC52xx_PSC_IMR_TXRDY ) keepgoing |= mpc52xx_uart_int_tx_chars(port); - + /* Limit number of iteration */ if ( !(--pass) ) keepgoing = 0; } while (keepgoing); - + spin_unlock(&port->lock); - + return IRQ_HANDLED; } @@ -563,13 +601,18 @@ mpc52xx_console_get_options(struct uart_port *port, struct mpc52xx_psc __iomem *psc = PSC(port); unsigned char mr1; + pr_debug("mpc52xx_console_get_options(port=%p)\n", port); + /* Read the mode registers */ out_8(&psc->command,MPC52xx_PSC_SEL_MODE_REG_1); mr1 = in_8(&psc->mode); - + /* CT{U,L}R are write-only ! */ - *baud = __res.bi_baudrate ? - __res.bi_baudrate : CONFIG_SERIAL_MPC52xx_CONSOLE_BAUD; + *baud = CONFIG_SERIAL_MPC52xx_CONSOLE_BAUD; +#if !defined(CONFIG_PPC_MERGE) + if (__res.bi_baudrate) + *baud = __res.bi_baudrate; +#endif /* Parse them */ switch (mr1 & MPC52xx_PSC_MODE_BITS_MASK) { @@ -579,26 +622,26 @@ mpc52xx_console_get_options(struct uart_port *port, case MPC52xx_PSC_MODE_8_BITS: default: *bits = 8; } - + if (mr1 & MPC52xx_PSC_MODE_PARNONE) *parity = 'n'; else *parity = mr1 & MPC52xx_PSC_MODE_PARODD ? 'o' : 'e'; } -static void +static void mpc52xx_console_write(struct console *co, const char *s, unsigned int count) { struct uart_port *port = &mpc52xx_uart_ports[co->index]; struct mpc52xx_psc __iomem *psc = PSC(port); unsigned int i, j; - + /* Disable interrupts */ out_be16(&psc->mpc52xx_psc_imr, 0); /* Wait the TX buffer to be empty */ - j = 5000000; /* Maximum wait */ - while (!(in_be16(&psc->mpc52xx_psc_status) & MPC52xx_PSC_SR_TXEMP) && + j = 5000000; /* Maximum wait */ + while (!(in_be16(&psc->mpc52xx_psc_status) & MPC52xx_PSC_SR_TXEMP) && --j) udelay(1); @@ -607,13 +650,13 @@ mpc52xx_console_write(struct console *co, const char *s, unsigned int count) /* Line return handling */ if (*s == '\n') out_8(&psc->mpc52xx_psc_buffer_8, '\r'); - + /* Send the char */ out_8(&psc->mpc52xx_psc_buffer_8, *s); /* Wait the TX buffer to be empty */ - j = 20000; /* Maximum wait */ - while (!(in_be16(&psc->mpc52xx_psc_status) & + j = 20000; /* Maximum wait */ + while (!(in_be16(&psc->mpc52xx_psc_status) & MPC52xx_PSC_SR_TXEMP) && --j) udelay(1); } @@ -622,6 +665,7 @@ mpc52xx_console_write(struct console *co, const char *s, unsigned int count) out_be16(&psc->mpc52xx_psc_imr, port->read_status_mask); } +#if !defined(CONFIG_PPC_MERGE) static int __init mpc52xx_console_setup(struct console *co, char *options) { @@ -634,7 +678,7 @@ mpc52xx_console_setup(struct console *co, char *options) if (co->index < 0 || co->index >= MPC52xx_PSC_MAXNUM) return -EINVAL; - + /* Basic port init. Needed since we use some uart_??? func before * real init for early access */ spin_lock_init(&port->lock); @@ -656,6 +700,78 @@ mpc52xx_console_setup(struct console *co, char *options) return uart_set_options(port, co, baud, parity, bits, flow); } +#else + +static int __init +mpc52xx_console_setup(struct console *co, char *options) +{ + struct uart_port *port = &mpc52xx_uart_ports[co->index]; + struct device_node *np = mpc52xx_uart_nodes[co->index]; + unsigned int ipb_freq; + struct resource res; + int ret; + + int baud = CONFIG_SERIAL_MPC52xx_CONSOLE_BAUD; + int bits = 8; + int parity = 'n'; + int flow = 'n'; + + pr_debug("mpc52xx_console_setup co=%p, co->index=%i, options=%s\n", + co, co->index, options); + + if ((co->index < 0) || (co->index > MPC52xx_PSC_MAXNUM)) { + pr_debug("PSC%x out of range\n", co->index); + return -EINVAL; + } + + if (!np) { + pr_debug("PSC%x not found in device tree\n", co->index); + return -EINVAL; + } + + pr_debug("Console on ttyPSC%x is %s\n", + co->index, mpc52xx_uart_nodes[co->index]->full_name); + + /* Fetch register locations */ + if ((ret = of_address_to_resource(np, 0, &res)) != 0) { + pr_debug("Could not get resources for PSC%x\n", co->index); + return ret; + } + + /* Search for bus-frequency property in this node or a parent */ + if ((ipb_freq = mpc52xx_find_ipb_freq(np)) == 0) { + pr_debug("Could not find IPB bus frequency!\n"); + return -EINVAL; + } + + /* Basic port init. Needed since we use some uart_??? func before + * real init for early access */ + spin_lock_init(&port->lock); + port->uartclk = ipb_freq / 2; + port->ops = &mpc52xx_uart_ops; + port->mapbase = res.start; + port->membase = ioremap(res.start, sizeof(struct mpc52xx_psc)); + port->irq = irq_of_parse_and_map(np, 0); + + if (port->membase == NULL) + return -EINVAL; + + pr_debug("mpc52xx-psc uart at %lx, mapped to %p, irq=%x, freq=%i\n", + port->mapbase, port->membase, port->irq, port->uartclk); + + /* Setup the port parameters accoding to options */ + if (options) + uart_parse_options(options, &baud, &parity, &bits, &flow); + else + mpc52xx_console_get_options(port, &baud, &parity, &bits, &flow); + + pr_debug("Setting console parameters: %i %i%c1 flow=%c\n", + baud, bits, parity, flow); + + return uart_set_options(port, co, baud, parity, bits, flow); +} +#endif /* defined(CONFIG_PPC_MERGE) */ + static struct uart_driver mpc52xx_uart_driver; @@ -669,10 +785,11 @@ static struct console mpc52xx_console = { .data = &mpc52xx_uart_driver, }; - -static int __init + +static int __init mpc52xx_console_init(void) { + mpc52xx_uart_of_enumerate(); register_console(&mpc52xx_console); return 0; } @@ -700,6 +817,7 @@ static struct uart_driver mpc52xx_uart_driver = { }; +#if !defined(CONFIG_PPC_MERGE) /* ======================================================================== */ /* Platform Driver */ /* ======================================================================== */ @@ -723,8 +841,6 @@ mpc52xx_uart_probe(struct platform_device *dev) /* Init the port structure */ port = &mpc52xx_uart_ports[idx]; - memset(port, 0x00, sizeof(struct uart_port)); - spin_lock_init(&port->lock); port->uartclk = __res.bi_ipbfreq / 2; /* Look at CTLR doc */ port->fifosize = 512; @@ -733,6 +849,7 @@ mpc52xx_uart_probe(struct platform_device *dev) ( uart_console(port) ? 0 : UPF_IOREMAP ); port->line = idx; port->ops = &mpc52xx_uart_ops; + port->dev = &dev->dev; /* Search for IRQ and mapbase */ for (i=0 ; i<dev->num_resources ; i++, res++) { @@ -771,7 +888,7 @@ mpc52xx_uart_suspend(struct platform_device *dev, pm_message_t state) { struct uart_port *port = (struct uart_port *) platform_get_drvdata(dev); - if (sport) + if (port) uart_suspend_port(&mpc52xx_uart_driver, port); return 0; @@ -789,6 +906,7 @@ mpc52xx_uart_resume(struct platform_device *dev) } #endif + static struct platform_driver mpc52xx_uart_platform_driver = { .probe = mpc52xx_uart_probe, .remove = mpc52xx_uart_remove, @@ -800,6 +918,184 @@ static struct platform_driver mpc52xx_uart_platform_driver = { .name = "mpc52xx-psc", }, }; +#endif /* !defined(CONFIG_PPC_MERGE) */ + + +#if defined(CONFIG_PPC_MERGE) +/* ======================================================================== */ +/* OF Platform Driver */ +/* ======================================================================== */ + +static int __devinit +mpc52xx_uart_of_probe(struct of_device *op, const struct of_device_id *match) +{ + int idx = -1; + unsigned int ipb_freq; + struct uart_port *port = NULL; + struct resource res; + int ret; + + dev_dbg(&op->dev, "mpc52xx_uart_probe(op=%p, match=%p)\n", op, match); + + /* Check validity & presence */ + for (idx = 0; idx < MPC52xx_PSC_MAXNUM; idx++) + if (mpc52xx_uart_nodes[idx] == op->node) + break; + if (idx >= MPC52xx_PSC_MAXNUM) + return -EINVAL; + pr_debug("Found %s assigned to ttyPSC%x\n", + mpc52xx_uart_nodes[idx]->full_name, idx); + + /* Search for bus-frequency property in this node or a parent */ + if ((ipb_freq = mpc52xx_find_ipb_freq(op->node)) == 0) { + dev_dbg(&op->dev, "Could not find IPB bus frequency!\n"); + return -EINVAL; + } + + /* Init the port structure */ + port = &mpc52xx_uart_ports[idx]; + + spin_lock_init(&port->lock); + port->uartclk = ipb_freq / 2; + port->fifosize = 512; + port->iotype = UPIO_MEM; + port->flags = UPF_BOOT_AUTOCONF | + ( uart_console(port) ? 0 : UPF_IOREMAP ); + port->line = idx; + port->ops = &mpc52xx_uart_ops; + port->dev = &op->dev; + + /* Search for IRQ and mapbase */ + if ((ret = of_address_to_resource(op->node, 0, &res)) != 0) + return ret; + + port->mapbase = res.start; + port->irq = irq_of_parse_and_map(op->node, 0); + + dev_dbg(&op->dev, "mpc52xx-psc uart at %lx, irq=%x, freq=%i\n", + port->mapbase, port->irq, port->uartclk); + + if ((port->irq==NO_IRQ) || !port->mapbase) { + printk(KERN_ERR "Could not allocate resources for PSC\n"); + return -EINVAL; + } + + /* Add the port to the uart sub-system */ + ret = uart_add_one_port(&mpc52xx_uart_driver, port); + if (!ret) + dev_set_drvdata(&op->dev, (void*)port); + + return ret; +} + +static int +mpc52xx_uart_of_remove(struct of_device *op) +{ + struct uart_port *port = dev_get_drvdata(&op->dev); + dev_set_drvdata(&op->dev, NULL); + + if (port) + uart_remove_one_port(&mpc52xx_uart_driver, port); + + return 0; +} + +#ifdef CONFIG_PM +static int +mpc52xx_uart_of_suspend(struct of_device *op, pm_message_t state) +{ + struct uart_port *port = (struct uart_port *) dev_get_drvdata(&op->dev); + + if (port) + uart_suspend_port(&mpc52xx_uart_driver, port); + + return 0; +} + +static int +mpc52xx_uart_of_resume(struct of_device *op) +{ + struct uart_port *port = (struct uart_port *) dev_get_drvdata(&op->dev); + + if (port) + uart_resume_port(&mpc52xx_uart_driver, port); + + return 0; +} +#endif + +static void +mpc52xx_uart_of_assign(struct device_node *np, int idx) +{ + int free_idx = -1; + int i; + + /* Find the first free node */ + for (i = 0; i < MPC52xx_PSC_MAXNUM; i++) { + if (mpc52xx_uart_nodes[i] == NULL) { + free_idx = i; + break; + } + } + + if ((idx < 0) || (idx >= MPC52xx_PSC_MAXNUM)) + idx = free_idx; + + if (idx < 0) + return; /* No free slot; abort */ + + /* If the slot is already occupied, then swap slots */ + if (mpc52xx_uart_nodes[idx] && (free_idx != -1)) + mpc52xx_uart_nodes[free_idx] = mpc52xx_uart_nodes[idx]; + mpc52xx_uart_nodes[i] = np; +} + +static void +mpc52xx_uart_of_enumerate(void) +{ + static int enum_done = 0; + struct device_node *np; + const unsigned int *devno; + int i; + + if (enum_done) + return; + + for_each_node_by_type(np, "serial") { + if (!of_match_node(mpc52xx_uart_of_match, np)) + continue; + + /* Is a particular device number requested? */ + devno = get_property(np, "device_no", NULL); + mpc52xx_uart_of_assign(of_node_get(np), devno ? *devno : -1); + } + + enum_done = 1; + + for (i = 0; i < MPC52xx_PSC_MAXNUM; i++) { + if (mpc52xx_uart_nodes[i]) + pr_debug("%s assigned to ttyPSC%x\n", + mpc52xx_uart_nodes[i]->full_name, i); + } +} + +MODULE_DEVICE_TABLE(of, mpc52xx_uart_of_match); + +static struct of_platform_driver mpc52xx_uart_of_driver = { + .owner = THIS_MODULE, + .name = "mpc52xx-psc-uart", + .match_table = mpc52xx_uart_of_match, + .probe = mpc52xx_uart_of_probe, + .remove = mpc52xx_uart_of_remove, +#ifdef CONFIG_PM + .suspend = mpc52xx_uart_of_suspend, + .resume = mpc52xx_uart_of_resume, +#endif + .driver = { + .name = "mpc52xx-psc-uart", + }, +}; +#endif /* defined(CONFIG_PPC_MERGE) */ /* ======================================================================== */ @@ -811,22 +1107,45 @@ mpc52xx_uart_init(void) { int ret; - printk(KERN_INFO "Serial: MPC52xx PSC driver\n"); + printk(KERN_INFO "Serial: MPC52xx PSC UART driver\n"); - ret = uart_register_driver(&mpc52xx_uart_driver); - if (ret == 0) { - ret = platform_driver_register(&mpc52xx_uart_platform_driver); - if (ret) - uart_unregister_driver(&mpc52xx_uart_driver); + if ((ret = uart_register_driver(&mpc52xx_uart_driver)) != 0) { + printk(KERN_ERR "%s: uart_register_driver failed (%i)\n", + __FILE__, ret); + return ret; } - return ret; +#if defined(CONFIG_PPC_MERGE) + mpc52xx_uart_of_enumerate(); + + ret = of_register_platform_driver(&mpc52xx_uart_of_driver); + if (ret) { + printk(KERN_ERR "%s: of_register_platform_driver failed (%i)\n", + __FILE__, ret); + uart_unregister_driver(&mpc52xx_uart_driver); + return ret; + } +#else + ret = platform_driver_register(&mpc52xx_uart_platform_driver); + if (ret) { + printk(KERN_ERR "%s: platform_driver_register failed (%i)\n", + __FILE__, ret); + uart_unregister_driver(&mpc52xx_uart_driver); + return ret; + } +#endif + + return 0; } static void __exit mpc52xx_uart_exit(void) { +#if defined(CONFIG_PPC_MERGE) + of_unregister_platform_driver(&mpc52xx_uart_of_driver); +#else platform_driver_unregister(&mpc52xx_uart_platform_driver); +#endif uart_unregister_driver(&mpc52xx_uart_driver); } diff --git a/drivers/serial/serial_cs.c b/drivers/serial/serial_cs.c index 00f9ffd69489..431433f4dd6d 100644 --- a/drivers/serial/serial_cs.c +++ b/drivers/serial/serial_cs.c @@ -723,7 +723,7 @@ static int serial_config(struct pcmcia_device * link) u_char *buf; cisparse_t *parse; cistpl_cftable_entry_t *cf; - int i, last_ret, last_fn; + int i; DEBUG(0, "serial_config(0x%p)\n", link); @@ -740,15 +740,6 @@ static int serial_config(struct pcmcia_device * link) tuple->TupleOffset = 0; tuple->TupleDataMax = 255; tuple->Attributes = 0; - /* Get configuration register information */ - tuple->DesiredTuple = CISTPL_CONFIG; - last_ret = first_tuple(link, tuple, parse); - if (last_ret != CS_SUCCESS) { - last_fn = ParseTuple; - goto cs_failed; - } - link->conf.ConfigBase = parse->config.base; - link->conf.Present = parse->config.rmask[0]; /* Is this a compliant multifunction card? */ tuple->DesiredTuple = CISTPL_LONGLINK_MFC; @@ -757,27 +748,25 @@ static int serial_config(struct pcmcia_device * link) /* Is this a multiport card? */ tuple->DesiredTuple = CISTPL_MANFID; - if (first_tuple(link, tuple, parse) == CS_SUCCESS) { - info->manfid = parse->manfid.manf; - info->prodid = parse->manfid.card; - - for (i = 0; i < ARRAY_SIZE(quirks); i++) - if ((quirks[i].manfid == ~0 || - quirks[i].manfid == info->manfid) && - (quirks[i].prodid == ~0 || - quirks[i].prodid == info->prodid)) { - info->quirk = &quirks[i]; - break; - } - } + info->manfid = link->manf_id; + info->prodid = link->card_id; + + for (i = 0; i < ARRAY_SIZE(quirks); i++) + if ((quirks[i].manfid == ~0 || + quirks[i].manfid == info->manfid) && + (quirks[i].prodid == ~0 || + quirks[i].prodid == info->prodid)) { + info->quirk = &quirks[i]; + break; + } /* Another check for dual-serial cards: look for either serial or multifunction cards that ask for appropriate IO port ranges */ tuple->DesiredTuple = CISTPL_FUNCID; if ((info->multi == 0) && - ((first_tuple(link, tuple, parse) != CS_SUCCESS) || - (parse->funcid.func == CISTPL_FUNCID_MULTI) || - (parse->funcid.func == CISTPL_FUNCID_SERIAL))) { + (link->has_func_id) && + ((link->func_id == CISTPL_FUNCID_MULTI) || + (link->func_id == CISTPL_FUNCID_SERIAL))) { tuple->DesiredTuple = CISTPL_CFTABLE_ENTRY; if (first_tuple(link, tuple, parse) == CS_SUCCESS) { if ((cf->io.nwin == 1) && (cf->io.win[0].len % 8 == 0)) @@ -814,8 +803,6 @@ static int serial_config(struct pcmcia_device * link) kfree(cfg_mem); return 0; - cs_failed: - cs_error(link, last_fn, last_ret); failed: serial_remove(link); kfree(cfg_mem); @@ -925,6 +912,30 @@ static struct pcmcia_device_id serial_ids[] = { PCMCIA_DEVICE_CIS_PROD_ID123("ADVANTECH", "COMpad-32/85", "1.0", 0x96913a85, 0x8fbe92ae, 0x0877b627, "COMpad2.cis"), PCMCIA_DEVICE_CIS_PROD_ID2("RS-COM 2P", 0xad20b156, "RS-COM-2P.cis"), PCMCIA_DEVICE_CIS_MANF_CARD(0x0013, 0x0000, "GLOBETROTTER.cis"), + PCMCIA_DEVICE_PROD_ID12("ELAN DIGITAL SYSTEMS LTD, c1997.","SERIAL CARD: SL100 1.00.",0x19ca78af,0xf964f42b), + PCMCIA_DEVICE_PROD_ID12("ELAN DIGITAL SYSTEMS LTD, c1997.","SERIAL CARD: SL100",0x19ca78af,0x71d98e83), + PCMCIA_DEVICE_PROD_ID12("ELAN DIGITAL SYSTEMS LTD, c1997.","SERIAL CARD: SL232 1.00.",0x19ca78af,0x69fb7490), + PCMCIA_DEVICE_PROD_ID12("ELAN DIGITAL SYSTEMS LTD, c1997.","SERIAL CARD: SL232",0x19ca78af,0xb6bc0235), + PCMCIA_DEVICE_PROD_ID12("ELAN DIGITAL SYSTEMS LTD, c2000.","SERIAL CARD: CF232",0x63f2e0bd,0xb9e175d3), + PCMCIA_DEVICE_PROD_ID12("ELAN DIGITAL SYSTEMS LTD, c2000.","SERIAL CARD: CF232-5",0x63f2e0bd,0xfce33442), + PCMCIA_DEVICE_PROD_ID12("Elan","Serial Port: CF232",0x3beb8cf2,0x171e7190), + PCMCIA_DEVICE_PROD_ID12("Elan","Serial Port: CF232-5",0x3beb8cf2,0x20da4262), + PCMCIA_DEVICE_PROD_ID12("Elan","Serial Port: CF428",0x3beb8cf2,0xea5dd57d), + PCMCIA_DEVICE_PROD_ID12("Elan","Serial Port: CF500",0x3beb8cf2,0xd77255fa), + PCMCIA_DEVICE_PROD_ID12("Elan","Serial Port: IC232",0x3beb8cf2,0x6a709903), + PCMCIA_DEVICE_PROD_ID12("Elan","Serial Port: SL232",0x3beb8cf2,0x18430676), + PCMCIA_DEVICE_PROD_ID12("Elan","Serial Port: XL232",0x3beb8cf2,0x6f933767), + PCMCIA_MFC_DEVICE_PROD_ID12(0,"Elan","Serial Port: CF332",0x3beb8cf2,0x16dc1ba7), + PCMCIA_MFC_DEVICE_PROD_ID12(0,"Elan","Serial Port: SL332",0x3beb8cf2,0x19816c41), + PCMCIA_MFC_DEVICE_PROD_ID12(0,"Elan","Serial Port: SL385",0x3beb8cf2,0x64112029), + PCMCIA_MFC_DEVICE_PROD_ID12(0,"Elan","Serial Port: SL432",0x3beb8cf2,0x1cce7ac4), + PCMCIA_MFC_DEVICE_PROD_ID12(0,"Elan","Serial+Parallel Port: SP230",0x3beb8cf2,0xdb9e58bc), + PCMCIA_MFC_DEVICE_PROD_ID12(1,"Elan","Serial Port: CF332",0x3beb8cf2,0x16dc1ba7), + PCMCIA_MFC_DEVICE_PROD_ID12(1,"Elan","Serial Port: SL332",0x3beb8cf2,0x19816c41), + PCMCIA_MFC_DEVICE_PROD_ID12(1,"Elan","Serial Port: SL385",0x3beb8cf2,0x64112029), + PCMCIA_MFC_DEVICE_PROD_ID12(1,"Elan","Serial Port: SL432",0x3beb8cf2,0x1cce7ac4), + PCMCIA_MFC_DEVICE_PROD_ID12(2,"Elan","Serial Port: SL432",0x3beb8cf2,0x1cce7ac4), + PCMCIA_MFC_DEVICE_PROD_ID12(3,"Elan","Serial Port: SL432",0x3beb8cf2,0x1cce7ac4), /* too generic */ /* PCMCIA_MFC_DEVICE_MANF_CARD(0, 0x0160, 0x0002), */ /* PCMCIA_MFC_DEVICE_MANF_CARD(1, 0x0160, 0x0002), */ diff --git a/drivers/serial/sh-sci.c b/drivers/serial/sh-sci.c index cfcc3caf49d8..3b5f19ec2126 100644 --- a/drivers/serial/sh-sci.c +++ b/drivers/serial/sh-sci.c @@ -775,7 +775,7 @@ static int sci_notifier(struct notifier_block *self, * * Clean this up later.. */ - clk = clk_get("module_clk"); + clk = clk_get(NULL, "module_clk"); port->uartclk = clk_get_rate(clk) * 16; clk_put(clk); } @@ -960,7 +960,7 @@ static void sci_set_termios(struct uart_port *port, struct termios *termios, default: { #if defined(CONFIG_SUPERH) && !defined(CONFIG_SUPERH64) - struct clk *clk = clk_get("module_clk"); + struct clk *clk = clk_get(NULL, "module_clk"); t = SCBRR_VALUE(baud, clk_get_rate(clk)); clk_put(clk); #else @@ -1128,7 +1128,7 @@ static void __init sci_init_ports(void) * XXX: We should use a proper SCI/SCIF clock */ { - struct clk *clk = clk_get("module_clk"); + struct clk *clk = clk_get(NULL, "module_clk"); sci_ports[i].port.uartclk = clk_get_rate(clk) * 16; clk_put(clk); } diff --git a/drivers/serial/sh-sci.h b/drivers/serial/sh-sci.h index 7ee992146ae9..e4557cc4f74b 100644 --- a/drivers/serial/sh-sci.h +++ b/drivers/serial/sh-sci.h @@ -133,6 +133,20 @@ # define SCIF_ORER 0x0001 /* Overrun error bit */ # define SCSCR_INIT(port) 0x3a /* TIE=0,RIE=0,TE=1,RE=1,REIE=1 */ # define SCIF_ONLY +#elif defined(CONFIG_CPU_SUBTYPE_SH7206) +# define SCSPTR0 0xfffe8020 /* 16 bit SCIF */ +# define SCSPTR1 0xfffe8820 /* 16 bit SCIF */ +# define SCSPTR2 0xfffe9020 /* 16 bit SCIF */ +# define SCSPTR3 0xfffe9820 /* 16 bit SCIF */ +# define SCSCR_INIT(port) 0x38 /* TIE=0,RIE=0,TE=1,RE=1,REIE=1 */ +# define SCIF_ONLY +#elif defined(CONFIG_CPU_SUBTYPE_SH7619) +# define SCSPTR0 0xf8400020 /* 16 bit SCIF */ +# define SCSPTR1 0xf8410020 /* 16 bit SCIF */ +# define SCSPTR2 0xf8420020 /* 16 bit SCIF */ +# define SCIF_ORER 0x0001 /* overrun error bit */ +# define SCSCR_INIT(port) 0x38 /* TIE=0,RIE=0,TE=1,RE=1,REIE=1 */ +# define SCIF_ONLY #else # error CPU subtype not defined #endif @@ -365,6 +379,7 @@ SCIx_FNS(SCxSR, 0x08, 8, 0x10, 8, 0x08, 16, 0x10, 16, 0x04, 8) SCIx_FNS(SCxRDR, 0x0a, 8, 0x14, 8, 0x0A, 8, 0x14, 8, 0x05, 8) SCIF_FNS(SCFCR, 0x0c, 8, 0x18, 16) #if defined(CONFIG_CPU_SUBTYPE_SH7760) || defined(CONFIG_CPU_SUBTYPE_SH7780) +SCIF_FNS(SCFDR, 0x0e, 16, 0x1C, 16) SCIF_FNS(SCTFDR, 0x0e, 16, 0x1C, 16) SCIF_FNS(SCRFDR, 0x0e, 16, 0x20, 16) SCIF_FNS(SCSPTR, 0, 0, 0x24, 16) @@ -544,6 +559,28 @@ static inline int sci_rxd_in(struct uart_port *port) if (port->mapbase == 0xffe10000) return ctrl_inw(SCSPTR1) & 0x0001 ? 1 : 0; /* SCIF */ } +#elif defined(CONFIG_CPU_SUBTYPE_SH7206) +static inline int sci_rxd_in(struct uart_port *port) +{ + if (port->mapbase == 0xfffe8000) + return ctrl_inw(SCSPTR0) & 0x0001 ? 1 : 0; /* SCIF */ + if (port->mapbase == 0xfffe8800) + return ctrl_inw(SCSPTR1) & 0x0001 ? 1 : 0; /* SCIF */ + if (port->mapbase == 0xfffe9000) + return ctrl_inw(SCSPTR2) & 0x0001 ? 1 : 0; /* SCIF */ + if (port->mapbase == 0xfffe9800) + return ctrl_inw(SCSPTR3) & 0x0001 ? 1 : 0; /* SCIF */ +} +#elif defined(CONFIG_CPU_SUBTYPE_SH7619) +static inline int sci_rxd_in(struct uart_port *port) +{ + if (port->mapbase == 0xf8400000) + return ctrl_inw(SCSPTR0) & 0x0001 ? 1 : 0; /* SCIF */ + if (port->mapbase == 0xf8410000) + return ctrl_inw(SCSPTR1) & 0x0001 ? 1 : 0; /* SCIF */ + if (port->mapbase == 0xf8420000) + return ctrl_inw(SCSPTR2) & 0x0001 ? 1 : 0; /* SCIF */ +} #endif /* |