ppc: Move cpu/$CPU to arch/ppc/cpu/$CPU

Signed-off-by: Peter Tyser <ptyser@xes-inc.com>

1 files changed, 363 insertions, 0 deletions

diff --git a/arch/ppc/cpu/mpc5xxx/serial.c b/arch/ppc/cpu/mpc5xxx/serial.c
new file mode 100644
index 0000000..6675988
--- /dev/null
+++ b/arch/ppc/cpu/mpc5xxx/serial.c
@@ -0,0 +1,363 @@
+/*
+ * (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 */