/*
- * (C) Copyright 2000 - 2007
+ * (C) Copyright 2000 - 2010
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
*
* See file CREDITS for list of people who contributed to this
*/
#include <common.h>
+#include <asm/io.h>
+#include <asm/processor.h>
DECLARE_GLOBAL_DATA_PTR;
static void fifo_init (volatile psc512x_t *psc)
{
- volatile immap_t *im = (immap_t *) CFG_IMMR;
+ volatile immap_t *im = (immap_t *) CONFIG_SYS_IMMR;
/* reset Rx & Tx fifo slice */
- psc->rfcmd = PSC_FIFO_RESET_SLICE;
- psc->tfcmd = PSC_FIFO_RESET_SLICE;
+ out_be32(&psc->rfcmd, PSC_FIFO_RESET_SLICE);
+ out_be32(&psc->tfcmd, PSC_FIFO_RESET_SLICE);
/* disable Tx & Rx FIFO interrupts */
- psc->rfintmask = 0;
- psc->tfintmask = 0;
+ out_be32(&psc->rfintmask, 0);
+ out_be32(&psc->tfintmask, 0);
- psc->tfsize = CONSOLE_FIFO_TX_SIZE | (CONSOLE_FIFO_TX_ADDR << 16);
- psc->rfsize = CONSOLE_FIFO_RX_SIZE | (CONSOLE_FIFO_RX_ADDR << 16);
+ out_be32(&psc->tfsize, CONSOLE_FIFO_TX_SIZE | (CONSOLE_FIFO_TX_ADDR << 16));
+ out_be32(&psc->rfsize, CONSOLE_FIFO_RX_SIZE | (CONSOLE_FIFO_RX_ADDR << 16));
/* enable Tx & Rx FIFO slice */
- psc->rfcmd = PSC_FIFO_ENABLE_SLICE;
- psc->tfcmd = PSC_FIFO_ENABLE_SLICE;
+ out_be32(&psc->rfcmd, PSC_FIFO_ENABLE_SLICE);
+ out_be32(&psc->tfcmd, PSC_FIFO_ENABLE_SLICE);
- im->fifoc.fifoc_cmd = FIFOC_DISABLE_CLOCK_GATE;
+ out_be32(&im->fifoc.fifoc_cmd, FIFOC_DISABLE_CLOCK_GATE);
__asm__ volatile ("sync");
}
+void serial_setbrg(void)
+{
+ volatile immap_t *im = (immap_t *) CONFIG_SYS_IMMR;
+ volatile psc512x_t *psc = (psc512x_t *) &im->psc[CONFIG_PSC_CONSOLE];
+ unsigned long baseclk, div;
+
+ /* calculate dividor for setting PSC CTUR and CTLR registers */
+ baseclk = (gd->ips_clk + 8) / 16;
+ div = (baseclk + (gd->baudrate / 2)) / gd->baudrate;
+
+ out_8(&psc->ctur, (div >> 8) & 0xff);
+ out_8(&psc->ctlr, div & 0xff); /* set baudrate */
+}
+
int serial_init(void)
{
- volatile immap_t *im = (immap_t *) CFG_IMMR;
+ volatile immap_t *im = (immap_t *) CONFIG_SYS_IMMR;
volatile psc512x_t *psc = (psc512x_t *) &im->psc[CONFIG_PSC_CONSOLE];
- unsigned long baseclk;
- int div;
fifo_init (psc);
/* set MR register to point to MR1 */
- psc->command = PSC_SEL_MODE_REG_1;
+ out_8(&psc->command, PSC_SEL_MODE_REG_1);
/* disable Tx/Rx */
- psc->command = PSC_TX_DISABLE | PSC_RX_DISABLE;
+ out_8(&psc->command, PSC_TX_DISABLE | PSC_RX_DISABLE);
/* choose the prescaler by 16 for the Tx/Rx clock generation */
- psc->psc_clock_select = 0xdd00;
+ out_be16(&psc->psc_clock_select, 0xdd00);
/* switch to UART mode */
- psc->sicr = 0;
+ out_be32(&psc->sicr, 0);
/* mode register points to mr1 */
/* configure parity, bit length and so on in mode register 1*/
- psc->mode = PSC_MODE_8_BITS | PSC_MODE_PARNONE;
+ out_8(&psc->mode, PSC_MODE_8_BITS | PSC_MODE_PARNONE);
/* now, mode register points to mr2 */
- psc->mode = PSC_MODE_1_STOPBIT;
-
- /* calculate dividor for setting PSC CTUR and CTLR registers */
- baseclk = (gd->ipb_clk + 8) / 16;
- div = (baseclk + (gd->baudrate / 2)) / gd->baudrate;
+ out_8(&psc->mode, PSC_MODE_1_STOPBIT);
- psc->ctur = (div >> 8) & 0xff;
/* set baudrate */
- psc->ctlr = div & 0xff;
+ serial_setbrg();
/* disable all interrupts */
- psc->psc_imr = 0;
+ out_be16(&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;
+ out_8(&psc->command, PSC_RST_RX);
+ out_8(&psc->command, PSC_RST_TX);
+ out_8(&psc->command, PSC_RX_ENABLE | PSC_TX_ENABLE);
return 0;
}
void serial_putc (const char c)
{
- volatile immap_t *im = (immap_t *)CFG_IMMR;
+ volatile immap_t *im = (immap_t *)CONFIG_SYS_IMMR;
volatile psc512x_t *psc = (psc512x_t *) &im->psc[CONFIG_PSC_CONSOLE];
if (c == '\n')
serial_putc ('\r');
/* Wait for last character to go. */
- while (!(psc->psc_status & PSC_SR_TXEMP))
+ while (!(in_be16(&psc->psc_status) & PSC_SR_TXEMP))
;
- psc->tfdata_8 = c;
+ out_8(&psc->tfdata_8, c);
}
void serial_putc_raw (const char c)
{
- volatile immap_t *im = (immap_t *) CFG_IMMR;
+ volatile immap_t *im = (immap_t *) CONFIG_SYS_IMMR;
volatile psc512x_t *psc = (psc512x_t *) &im->psc[CONFIG_PSC_CONSOLE];
/* Wait for last character to go. */
- while (!(psc->psc_status & PSC_SR_TXEMP))
+ while (!(in_be16(&psc->psc_status) & PSC_SR_TXEMP))
;
- psc->tfdata_8 = c;
+ out_8(&psc->tfdata_8, c);
}
int serial_getc (void)
{
- volatile immap_t *im = (immap_t *) CFG_IMMR;
+ volatile immap_t *im = (immap_t *) CONFIG_SYS_IMMR;
volatile psc512x_t *psc = (psc512x_t *) &im->psc[CONFIG_PSC_CONSOLE];
/* Wait for a character to arrive. */
- while (psc->rfstat & PSC_FIFO_EMPTY)
+ while (in_be32(&psc->rfstat) & PSC_FIFO_EMPTY)
;
- return psc->rfdata_8;
+ return in_8(&psc->rfdata_8);
}
int serial_tstc (void)
{
- volatile immap_t *im = (immap_t *) CFG_IMMR;
- volatile psc512x_t *psc = (psc512x_t *) &im->psc[CONFIG_PSC_CONSOLE];
-
- return !(psc->rfstat & PSC_FIFO_EMPTY);
-}
-
-void serial_setbrg (void)
-{
- volatile immap_t *im = (immap_t *) CFG_IMMR;
+ volatile immap_t *im = (immap_t *) CONFIG_SYS_IMMR;
volatile psc512x_t *psc = (psc512x_t *) &im->psc[CONFIG_PSC_CONSOLE];
- unsigned long baseclk, div;
-
- baseclk = (gd->csb_clk + 8) / 16;
- div = (baseclk + (gd->baudrate / 2)) / gd->baudrate;
- psc->ctur = (div >> 8) & 0xFF;
- psc->ctlr = div & 0xff; /* set baudrate */
+ return !(in_be32(&psc->rfstat) & PSC_FIFO_EMPTY);
}
void serial_setrts(int s)
{
- volatile immap_t *im = (immap_t *) CFG_IMMR;
+ volatile immap_t *im = (immap_t *) CONFIG_SYS_IMMR;
volatile psc512x_t *psc = (psc512x_t *) &im->psc[CONFIG_PSC_CONSOLE];
if (s) {
/* Assert RTS (become LOW) */
- psc->op1 = 0x1;
+ out_8(&psc->op1, 0x1);
}
else {
/* Negate RTS (become HIGH) */
- psc->op0 = 0x1;
+ out_8(&psc->op0, 0x1);
}
}
int serial_getcts(void)
{
- volatile immap_t *im = (immap_t *) CFG_IMMR;
+ volatile immap_t *im = (immap_t *) CONFIG_SYS_IMMR;
volatile psc512x_t *psc = (psc512x_t *) &im->psc[CONFIG_PSC_CONSOLE];
- return (psc->ip & 0x1) ? 0 : 1;
+ return (in_8(&psc->ip) & 0x1) ? 0 : 1;
}
#endif /* CONFIG_PSC_CONSOLE */
projects / people / ms / u-boot.git / blobdiff