LEON: added new drivers to the LEON2/LEON3 BSPs

Most drivers use the Driver Manager for device probing, they
work on AMBA-over-PCI systems if PCI is big-endian.

New APIs:
 * GPIO Library, interfaced to GRGPIO
 * GENIRQ, Generic interrupt service implementation helper

New GRLIB Drivers:
 * ACTEL 1553 RT, user interface is similar to 1553 BRM driver
 * GR1553 (1553 BC, RT and BM core)
 * AHBSTAT (AHB error status core)
 * GRADCDAC (Core interfacing to ADC/DAC hardware)
 * GRGPIO (GPIO port accessed from GPIO Library)
 * MCTRL (Memory controller settings configuration)
 * GRETH (10/100/1000 Ethernet driver using Driver manager)
 * GRPWM (Pulse Width Modulation core)
 * SPICTRL (SPI master interface)
 * GRSPW_ROUTER (SpaceWire Router AMBA configuration interface)
 * GRCTM (SpaceCraft on-board Time Management core)
 * SPWCUC (Time distribution over SpaceWire)
 * GRTC (SpaceCraft up-link Tele core)
 * GRTM (SpaceCraft down-link Tele Metry core)

GR712RC ASIC specific interfaces:
 * GRASCS
 * CANMUX (select between OCCAN and SATCAN)
 * SATCAN
 * SLINK

1 files changed, 409 insertions, 0 deletions

diff --git a/c/src/lib/libbsp/sparc/shared/time/grctm.c b/c/src/lib/libbsp/sparc/shared/time/grctm.c
new file mode 100644
index 0000000000..3185e13264
--- /dev/null
+++ b/c/src/lib/libbsp/sparc/shared/time/grctm.c
@@ -0,0 +1,409 @@
+/*  GRCTM - CCSDS Time Manager - register driver interface.
+ *
+ *  COPYRIGHT (c) 2009.
+ *  Cobham Gaisler AB.
+ *
+ *  The license and distribution terms for this file may be
+ *  found in the file LICENSE in this distribution or at
+ *  http://www.rtems.com/license/LICENSE.
+ */
+
+#include <drvmgr/drvmgr.h>
+#include <drvmgr/ambapp_bus.h>
+#include <stdlib.h>
+
+#include <grctm.h>
+
+/* Private structure of GRCTM driver */
+struct grctm_priv {
+	struct drvmgr_dev *dev;
+	struct grctm_regs *regs;
+	int open;
+
+	grctm_isr_t user_isr;
+	void *user_isr_arg;
+
+	struct grctm_stats stats;
+};
+
+void grctm_isr(void *data);
+
+struct amba_drv_info grctm_drv_info;
+
+void *grctm_open(int minor)
+{
+	struct grctm_priv *priv;
+	struct drvmgr_dev *dev;
+
+	/* Get Device from Minor */
+	if ( drvmgr_get_dev(&grctm_drv_info.general, minor, &dev) ) {
+		return NULL;
+	}
+
+	priv = dev->priv;
+	if ( (priv == NULL) || priv->open )
+		return NULL;
+
+	/* Set initial state of software */
+	priv->open = 1;
+
+	/* Clear Statistics */
+	grctm_clr_stats(priv);
+	priv->user_isr = NULL;
+	priv->user_isr_arg = NULL;
+
+	return priv;
+}
+
+void grctm_close(void *grctm)
+{
+	struct grctm_priv *priv = (struct grctm_priv *)grctm;
+
+	if ( priv->open == 0 )
+		return;
+
+	/* Reset Hardware */
+	grctm_reset(priv);
+
+	priv->open = 0;
+}
+
+/* Hardware Reset of GRCTM */
+int grctm_reset(void *grctm)
+{
+	struct grctm_priv *priv = grctm;
+	struct grctm_regs *r = priv->regs;
+
+	r->grr = 0x55000001;
+
+	int i = 1000;
+	while ((r->grr & 1) && i > 0) {
+		i--;
+	}
+
+	return i ? 0 : -1;
+}
+
+void grctm_int_enable(void *grctm)
+{
+	struct grctm_priv *priv = (struct grctm_priv *)grctm;
+
+	/* Register and Enable Interrupt at Interrupt controller */
+	drvmgr_interrupt_register(priv->dev, 0, "grctm", grctm_isr, priv);
+}
+
+void grctm_int_disable(void *grctm)
+{
+	struct grctm_priv *priv = (struct grctm_priv *)grctm;
+
+	/* Enable Interrupt at Interrupt controller */
+	drvmgr_interrupt_unregister(priv->dev, 0, grctm_isr, priv);
+}
+
+void grctm_clr_stats(void *grctm)
+{
+	struct grctm_priv *priv = (struct grctm_priv *)grctm;
+
+	memset(&priv->stats, 0, sizeof(priv->stats));
+}
+
+void grctm_get_stats(void *grctm, struct grctm_stats *stats)
+{
+	struct grctm_priv *priv = (struct grctm_priv *)grctm;
+
+	memcpy(stats, &priv->stats, sizeof(priv->stats));
+}
+
+/* Enable external synchronisation (from grctm) */
+void grctm_enable_ext_sync(void *grctm)
+{
+	struct grctm_priv *priv = grctm;
+
+	priv->regs->gcr |= 0x55<<24 | 1<<9;
+}
+
+/* Disable external synchronisation (from grctm) */
+void grctm_disable_ext_sync(void *grctm)
+{
+	struct grctm_priv *priv = grctm;
+
+	priv->regs->gcr &= ~((0xAA<<24) | 1<<9);
+}
+
+/* Enable TimeWire synchronisation */
+void grctm_enable_tw_sync(void *grctm)
+{
+	struct grctm_priv *priv = grctm;
+
+	priv->regs->gcr |= 0x55<<24 | 1<<8;
+}
+
+/* Disable TimeWire synchronisation */
+void grctm_disable_tw_sync(void *grctm)
+{
+	struct grctm_priv *priv = grctm;
+
+	priv->regs->gcr &= ~((0xAA<<24) | 1<<8);
+}
+
+/* Disable frequency synthesizer from driving ET */
+void grctm_disable_fs(void *grctm)
+{
+	struct grctm_priv *priv = grctm;
+
+	priv->regs->gcr |= 0x55<<24 | 1<<7;
+}
+
+/* Enable frequency synthesizer to drive ET */
+void grctm_enable_fs(void *grctm)
+{
+	struct grctm_priv *priv = grctm;
+
+	priv->regs->gcr &= ~((0xAA<<24) | 1<<7);
+}
+
+/* Return elapsed coarse time */
+unsigned int grctm_get_et_coarse(void *grctm)
+{
+	struct grctm_priv *priv = grctm;
+
+	return priv->regs->etcr;
+}
+
+/* Return elapsed fine time */
+unsigned int grctm_get_et_fine(void *grctm)
+{
+	struct grctm_priv *priv = grctm;
+
+	return (priv->regs->etfr & 0xffffff00) >> 8;
+}
+
+/* Return elapsed time (coarse and fine) */
+unsigned long long grctm_get_et(void *grctm)
+{
+	return (((unsigned long)grctm_get_et_coarse(grctm)) << 24) | grctm_get_et_fine(grctm);
+}
+
+
+/* Return 1 if specified datation has been latched */
+int grctm_is_dat_latched(void *grctm, int dat)
+{
+	struct grctm_priv *priv = grctm;
+
+	return (priv->regs->gsr >> dat) & 1;
+}
+
+/* Set triggering edge of datation input */
+void grctm_set_dat_edge(void *grctm, int dat, int edge)
+{
+	struct grctm_priv *priv = grctm;
+
+	priv->regs->gcr &= ~((0xAA<<24) | 1 << (10+dat));
+	priv->regs->gcr |= 0x55<<24 | (edge&1) << (10+dat);
+}
+
+/* Return latched datation coarse time */
+unsigned int grctm_get_dat_coarse(void *grctm, int dat)
+{
+	struct grctm_priv *priv = grctm;
+
+	switch (dat) {
+	case 0 : return priv->regs->dcr0; 
+	case 1 : return priv->regs->dcr1;
+	case 2 : return priv->regs->dcr2;
+	default: return -1;
+	}
+}
+
+/* Return latched datation fine time */
+unsigned int grctm_get_dat_fine(void *grctm, int dat)
+{
+	struct grctm_priv *priv = grctm;
+
+	switch (dat) {
+	case 0 : return (priv->regs->dfr0 & 0xffffff00) >> 8; 
+	case 1 : return (priv->regs->dfr1 & 0xffffff00) >> 8;
+	case 2 : return (priv->regs->dfr2 & 0xffffff00) >> 8;
+	default: return -1;
+	}
+}
+
+
+/* Return latched datation ET */
+unsigned long long grctm_get_dat_et(void *grctm, int dat)
+{
+	return (((unsigned long)grctm_get_dat_coarse(grctm, dat)) << 24) | 
+		grctm_get_dat_fine(grctm, dat);
+}
+
+
+/* Return current pulse configuration */
+unsigned int grctm_get_pulse_reg(void *grctm, int pulse)
+{
+	struct grctm_priv *priv = grctm;
+
+	return priv->regs->pdr[pulse];
+}
+
+/* Set pulse register */
+void grctm_set_pulse_reg(void *grctm, int pulse, unsigned int val)
+{
+	struct grctm_priv *priv = grctm;
+
+	priv->regs->pdr[pulse] = val;
+}
+
+/* Configure pulse: pp = period, pw = width, pl = level, en = enable */
+void grctm_cfg_pulse(void *grctm, int pulse, int pp, int pw, int pl, int en)
+{
+	grctm_set_pulse_reg(grctm, pulse, (pp&0xf)<<20 | (pw&0xf)<<16 | (pl&1)<<10 | (en&1)<<1);
+}
+
+/* Enable pulse output */
+void grctm_enable_pulse(void *grctm, int pulse)
+{
+	struct grctm_priv *priv = grctm;
+
+	priv->regs->pdr[pulse] |= 0x2;
+}
+
+/* Disable pulse output */
+void grctm_disable_pulse(void *grctm, int pulse)
+{
+	struct grctm_priv *priv = grctm;
+
+	priv->regs->pdr[pulse] &= ~0x2;
+}
+
+/* Clear interrupts */
+void grctm_clear_irqs(void *grctm, int irqs)
+{
+	struct grctm_priv *priv = grctm;
+
+	priv->regs->picr = irqs;
+}
+
+/* Enable interrupts */
+void grctm_enable_irqs(void *grctm, int irqs)
+{
+	struct grctm_priv *priv = grctm;
+
+	priv->regs->imr  = irqs;
+}
+
+/* Set Frequency synthesizer increment */
+void grctm_set_fs_incr(void *grctm, int incr)
+{
+	struct grctm_priv *priv = grctm;
+
+	priv->regs->fsir  = incr;
+}
+
+/* Set ET increment */
+void grctm_set_et_incr(void *grctm, int incr)
+{
+	struct grctm_priv *priv = grctm;
+
+	priv->regs->etir  = incr;
+}
+
+
+void grctm_isr(void *data)
+{
+	struct grctm_priv *priv = data;
+	struct grctm_stats *stats = &priv->stats;
+	unsigned int pimr = priv->regs->pimr;
+
+	if ( pimr == 0 )
+		return;
+
+	stats->nirqs++;
+	if (pimr & PULSE0_IRQ )
+		stats->pulse++;
+
+	/* Let user Handle Interrupt */
+	if ( priv->user_isr )
+		priv->user_isr(pimr, priv->user_isr_arg);
+}
+
+struct grctm_regs *grctm_get_regs(void *grctm)
+{
+	struct grctm_priv *priv = (struct grctm_priv *)grctm;
+
+	return priv->regs;
+}
+
+void grctm_int_register(void *grctm, grctm_isr_t func, void *data)
+{
+	struct grctm_priv *priv = (struct grctm_priv *)grctm;
+
+	priv->user_isr = func;
+	priv->user_isr_arg = data;
+}
+
+/*** INTERFACE TO DRIVER MANAGER ***/
+
+int grctm_init2(struct drvmgr_dev *dev)
+{
+	struct amba_dev_info *ambadev;
+	struct ambapp_core *pnpinfo;
+	struct grctm_priv *priv;
+	struct grctm_regs *regs;
+
+	priv = (struct grctm_priv *)malloc(sizeof(*priv));
+	if ( priv == NULL )
+		return -1;
+	memset(priv, 0, sizeof(*priv));
+	priv->dev = dev;
+	dev->priv = priv;
+
+	/* Get device information from AMBA PnP information */
+	ambadev = (struct amba_dev_info *)dev->businfo;
+	if ( ambadev == NULL ) {
+		return -1;
+	}
+	pnpinfo = &ambadev->info;
+	regs = (struct grctm_regs *)pnpinfo->ahb_slv->start[0];
+
+	priv->regs = regs;
+
+	grctm_reset(priv);
+
+	return 0;
+}
+
+struct drvmgr_drv_ops grctm_ops =
+{
+	{NULL, grctm_init2, NULL, NULL},
+	NULL,
+	NULL
+};
+
+struct amba_dev_id grctm_ids[] =
+{
+	{VENDOR_GAISLER, GAISLER_GRCTM},
+	{0, 0}	/* Mark end of table */
+};
+
+struct amba_drv_info grctm_drv_info =
+{
+	{
+		DRVMGR_OBJ_DRV,			/* Driver */
+		NULL,				/* Next driver */
+		NULL,				/* Device list */
+		DRIVER_AMBAPP_GAISLER_GRCTM_ID,	/* Driver ID */
+		"GRCTM_DRV",			/* Driver Name */
+		DRVMGR_BUS_TYPE_AMBAPP,		/* Bus Type */
+		&grctm_ops,
+		NULL,				/* Funcs */
+		0,				/* No devices yet */
+		0,
+	},
+	&grctm_ids[0]
+};
+
+/* Register the grctm Driver */
+void grctm_register(void)
+{
+	drvmgr_drv_register(&grctm_drv_info.general);
+}