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author | Wolfgang Denk <wd@denx.de> | 2010-12-22 21:16:17 +0100 |
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committer | Wolfgang Denk <wd@denx.de> | 2010-12-22 21:16:17 +0100 |
commit | cdc51c294ad33879c4e57edf4c9d2155381b1d59 (patch) | |
tree | fc1c3f2c23a2507e91358a6a6dfa881965bf603f /drivers/serial | |
parent | 250ef029844be2cb98635f265359396866d1749f (diff) | |
parent | b8339e2b9f32663411dba0f48e25b23f542d53bc (diff) | |
download | u-boot-imx-cdc51c294ad33879c4e57edf4c9d2155381b1d59.zip u-boot-imx-cdc51c294ad33879c4e57edf4c9d2155381b1d59.tar.gz u-boot-imx-cdc51c294ad33879c4e57edf4c9d2155381b1d59.tar.bz2 |
Merge branch 'next' of ../next
Diffstat (limited to 'drivers/serial')
-rw-r--r-- | drivers/serial/ns16550.c | 8 | ||||
-rw-r--r-- | drivers/serial/serial.c | 5 | ||||
-rw-r--r-- | drivers/serial/serial_pl01x.c | 50 | ||||
-rw-r--r-- | drivers/serial/serial_pl01x.h | 41 |
4 files changed, 61 insertions, 43 deletions
diff --git a/drivers/serial/ns16550.c b/drivers/serial/ns16550.c index 32f24de..8eeb48f 100644 --- a/drivers/serial/ns16550.c +++ b/drivers/serial/ns16550.c @@ -24,9 +24,13 @@ #define serial_in(y) readb(y) #endif +#ifndef CONFIG_SYS_NS16550_IER +#define CONFIG_SYS_NS16550_IER 0x00 +#endif /* CONFIG_SYS_NS16550_IER */ + void NS16550_init (NS16550_t com_port, int baud_divisor) { - serial_out(0x00, &com_port->ier); + serial_out(CONFIG_SYS_NS16550_IER, &com_port->ier); #if defined(CONFIG_OMAP) && !defined(CONFIG_OMAP3_ZOOM2) serial_out(0x7, &com_port->mdr1); /* mode select reset TL16C750*/ #endif @@ -52,7 +56,7 @@ void NS16550_init (NS16550_t com_port, int baud_divisor) #ifndef CONFIG_NS16550_MIN_FUNCTIONS void NS16550_reinit (NS16550_t com_port, int baud_divisor) { - serial_out(0x00, &com_port->ier); + serial_out(CONFIG_SYS_NS16550_IER, &com_port->ier); serial_out(UART_LCR_BKSE | UART_LCRVAL, &com_port->lcr); serial_out(0, &com_port->dll); serial_out(0, &com_port->dlm); diff --git a/drivers/serial/serial.c b/drivers/serial/serial.c index 1073ac0..cd3439e 100644 --- a/drivers/serial/serial.c +++ b/drivers/serial/serial.c @@ -29,9 +29,10 @@ #endif #ifdef CONFIG_KIRKWOOD #include <asm/arch/kirkwood.h> -#endif -#ifdef CONFIG_ORION5X +#elif defined(CONFIG_ORION5X) #include <asm/arch/orion5x.h> +#elif defined(CONFIG_ARMADA100) +#include <asm/arch/armada100.h> #endif #if defined (CONFIG_SERIAL_MULTI) diff --git a/drivers/serial/serial_pl01x.c b/drivers/serial/serial_pl01x.c index c0ae947..5dfcde8 100644 --- a/drivers/serial/serial_pl01x.c +++ b/drivers/serial/serial_pl01x.c @@ -47,14 +47,20 @@ static int pl01x_tstc (int portnum); unsigned int baudrate = CONFIG_BAUDRATE; DECLARE_GLOBAL_DATA_PTR; +static struct pl01x_regs *pl01x_get_regs(int portnum) +{ + return (struct pl01x_regs *) port[portnum]; +} + #ifdef CONFIG_PL010_SERIAL int serial_init (void) { + struct pl01x_regs *regs = pl01x_get_regs(CONSOLE_PORT); unsigned int divisor; /* First, disable everything */ - writel(0x0, port[CONSOLE_PORT] + UART_PL010_CR); + writel(0, ®s->pl010_cr); /* Set baud rate */ switch (baudrate) { @@ -82,15 +88,14 @@ int serial_init (void) divisor = UART_PL010_BAUD_38400; } - writel(((divisor & 0xf00) >> 8), port[CONSOLE_PORT] + UART_PL010_LCRM); - writel((divisor & 0xff), port[CONSOLE_PORT] + UART_PL010_LCRL); + writel((divisor & 0xf00) >> 8, ®s->pl010_lcrm); + writel(divisor & 0xff, ®s->pl010_lcrl); /* Set the UART to be 8 bits, 1 stop bit, no parity, fifo enabled */ - writel((UART_PL010_LCRH_WLEN_8 | UART_PL010_LCRH_FEN), - port[CONSOLE_PORT] + UART_PL010_LCRH); + writel(UART_PL010_LCRH_WLEN_8 | UART_PL010_LCRH_FEN, ®s->pl010_lcrh); /* Finally, enable the UART */ - writel((UART_PL010_CR_UARTEN), port[CONSOLE_PORT] + UART_PL010_CR); + writel(UART_PL010_CR_UARTEN, ®s->pl010_cr); return 0; } @@ -101,13 +106,14 @@ int serial_init (void) int serial_init (void) { + struct pl01x_regs *regs = pl01x_get_regs(CONSOLE_PORT); unsigned int temp; unsigned int divider; unsigned int remainder; unsigned int fraction; /* First, disable everything */ - writel(0x0, port[CONSOLE_PORT] + UART_PL011_CR); + writel(0, ®s->pl011_cr); /* * Set baud rate @@ -121,16 +127,16 @@ int serial_init (void) temp = (8 * remainder) / baudrate; fraction = (temp >> 1) + (temp & 1); - writel(divider, port[CONSOLE_PORT] + UART_PL011_IBRD); - writel(fraction, port[CONSOLE_PORT] + UART_PL011_FBRD); + writel(divider, ®s->pl011_ibrd); + writel(fraction, ®s->pl011_fbrd); /* Set the UART to be 8 bits, 1 stop bit, no parity, fifo enabled */ - writel((UART_PL011_LCRH_WLEN_8 | UART_PL011_LCRH_FEN), - port[CONSOLE_PORT] + UART_PL011_LCRH); + writel(UART_PL011_LCRH_WLEN_8 | UART_PL011_LCRH_FEN, + ®s->pl011_lcrh); /* Finally, enable the UART */ - writel((UART_PL011_CR_UARTEN | UART_PL011_CR_TXE | UART_PL011_CR_RXE), - port[CONSOLE_PORT] + UART_PL011_CR); + writel(UART_PL011_CR_UARTEN | UART_PL011_CR_TXE | UART_PL011_CR_RXE, + ®s->pl011_cr); return 0; } @@ -170,28 +176,31 @@ void serial_setbrg (void) static void pl01x_putc (int portnum, char c) { + struct pl01x_regs *regs = pl01x_get_regs(portnum); + /* Wait until there is space in the FIFO */ - while (readl(port[portnum] + UART_PL01x_FR) & UART_PL01x_FR_TXFF) + while (readl(®s->fr) & UART_PL01x_FR_TXFF) WATCHDOG_RESET(); /* Send the character */ - writel(c, port[portnum] + UART_PL01x_DR); + writel(c, ®s->dr); } static int pl01x_getc (int portnum) { + struct pl01x_regs *regs = pl01x_get_regs(portnum); unsigned int data; /* Wait until there is data in the FIFO */ - while (readl(port[portnum] + UART_PL01x_FR) & UART_PL01x_FR_RXFE) + while (readl(®s->fr) & UART_PL01x_FR_RXFE) WATCHDOG_RESET(); - data = readl(port[portnum] + UART_PL01x_DR); + data = readl(®s->dr); /* Check for an error flag */ if (data & 0xFFFFFF00) { /* Clear the error */ - writel(0xFFFFFFFF, port[portnum] + UART_PL01x_ECR); + writel(0xFFFFFFFF, ®s->ecr); return -1; } @@ -200,7 +209,8 @@ static int pl01x_getc (int portnum) static int pl01x_tstc (int portnum) { + struct pl01x_regs *regs = pl01x_get_regs(portnum); + WATCHDOG_RESET(); - return !(readl(port[portnum] + UART_PL01x_FR) & - UART_PL01x_FR_RXFE); + return !(readl(®s->fr) & UART_PL01x_FR_RXFE); } diff --git a/drivers/serial/serial_pl01x.h b/drivers/serial/serial_pl01x.h index 5f20fdd..b670c24 100644 --- a/drivers/serial/serial_pl01x.h +++ b/drivers/serial/serial_pl01x.h @@ -29,10 +29,28 @@ * Definitions common to both PL010 & PL011 * */ -#define UART_PL01x_DR 0x00 /* Data read or written from the interface. */ -#define UART_PL01x_RSR 0x04 /* Receive status register (Read). */ -#define UART_PL01x_ECR 0x04 /* Error clear register (Write). */ -#define UART_PL01x_FR 0x18 /* Flag register (Read only). */ + +#ifndef __ASSEMBLY__ +/* + * We can use a combined structure for PL010 and PL011, because they overlap + * only in common registers. + */ +struct pl01x_regs { + u32 dr; /* 0x00 Data register */ + u32 ecr; /* 0x04 Error clear register (Write) */ + u32 pl010_lcrh; /* 0x08 Line control register, high byte */ + u32 pl010_lcrm; /* 0x0C Line control register, middle byte */ + u32 pl010_lcrl; /* 0x10 Line control register, low byte */ + u32 pl010_cr; /* 0x14 Control register */ + u32 fr; /* 0x18 Flag register (Read only) */ + u32 reserved; + u32 ilpr; /* 0x20 IrDA low-power counter register */ + u32 pl011_ibrd; /* 0x24 Integer baud rate register */ + u32 pl011_fbrd; /* 0x28 Fractional baud rate register */ + u32 pl011_lcrh; /* 0x2C Line control register */ + u32 pl011_cr; /* 0x30 Control register */ +}; +#endif #define UART_PL01x_RSR_OE 0x08 #define UART_PL01x_RSR_BE 0x04 @@ -50,14 +68,6 @@ * PL010 definitions * */ -#define UART_PL010_LCRH 0x08 /* Line control register, high byte. */ -#define UART_PL010_LCRM 0x0C /* Line control register, middle byte. */ -#define UART_PL010_LCRL 0x10 /* Line control register, low byte. */ -#define UART_PL010_CR 0x14 /* Control register. */ -#define UART_PL010_IIR 0x1C /* Interrupt indentification register (Read). */ -#define UART_PL010_ICR 0x1C /* Interrupt clear register (Write). */ -#define UART_PL010_ILPR 0x20 /* IrDA low power counter register. */ - #define UART_PL010_CR_LPE (1 << 7) #define UART_PL010_CR_RTIE (1 << 6) #define UART_PL010_CR_TIE (1 << 5) @@ -93,13 +103,6 @@ * PL011 definitions * */ -#define UART_PL011_IBRD 0x24 -#define UART_PL011_FBRD 0x28 -#define UART_PL011_LCRH 0x2C -#define UART_PL011_CR 0x30 -#define UART_PL011_IMSC 0x38 -#define UART_PL011_PERIPH_ID0 0xFE0 - #define UART_PL011_LCRH_SPS (1 << 7) #define UART_PL011_LCRH_WLEN_8 (3 << 5) #define UART_PL011_LCRH_WLEN_7 (2 << 5) |