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authorSebastian Huber <sebastian.huber@embedded-brains.de>2018-12-22 18:31:04 +0100
committerSebastian Huber <sebastian.huber@embedded-brains.de>2019-01-22 12:46:33 +0100
commit7eb606d393306da25fd6e6aa7f8595ffb2e924fc (patch)
tree085befd6fe5e29d229fec9683735516d48e9d41e /bsps/shared/grlib/mem
parentgrlib: Move header files (diff)
downloadrtems-7eb606d393306da25fd6e6aa7f8595ffb2e924fc.tar.bz2
grlib: Move source files
Update #3678.
Diffstat (limited to 'bsps/shared/grlib/mem')
-rw-r--r--bsps/shared/grlib/mem/mctrl.c213
1 files changed, 213 insertions, 0 deletions
diff --git a/bsps/shared/grlib/mem/mctrl.c b/bsps/shared/grlib/mem/mctrl.c
new file mode 100644
index 0000000000..a384547de8
--- /dev/null
+++ b/bsps/shared/grlib/mem/mctrl.c
@@ -0,0 +1,213 @@
+/* Memory Controller driver (FTMTRL, MCTRL)
+ *
+ * COPYRIGHT (c) 2008.
+ * Cobham Gaisler AB.
+ *
+ * This file contains the driver for the MCTRL memory controller.
+ * The driver sets the memory configuration registers (MCFG1, MCFG2, MCFG3)
+ * during driver initialization
+ *
+ * The license and distribution terms for this file may be
+ * found in found in the file LICENSE in this distribution or at
+ * http://www.rtems.org/license/LICENSE.
+ */
+
+/******************* Driver manager interface ***********************/
+#include <stdlib.h>
+#include <string.h>
+#include <stdio.h>
+
+#include <drvmgr/drvmgr.h>
+#include <grlib/ambapp_bus.h>
+
+#include <grlib/mctrl.h>
+
+#include <grlib/grlib_impl.h>
+
+#define MEMSET(priv, start, c, length) memset((void *)start, c, length)
+
+#define DBG(args...)
+/*#define DBG(args...) printk(args)*/
+
+struct mctrl_regs {
+ unsigned int mcfg[8];
+};
+
+struct mctrl_priv;
+
+struct mctrl_ops {
+ void (*mcfg_set)(struct mctrl_priv *priv, int index, void *regs, unsigned int regval);
+};
+
+struct mctrl_priv {
+ struct drvmgr_dev *dev;
+ void *regs;
+ unsigned int mcfg[8]; /* The wanted memory configuration */
+ unsigned int configured; /* Determines what mcfgs was configured by user */
+ struct mctrl_ops *ops; /* Operation may depend on hardware */
+};
+
+static int mctrl_init1(struct drvmgr_dev *dev);
+static int mctrl_remove(struct drvmgr_dev *dev);
+
+/* Standard MCFG registers */
+static void mctrl_set_std(struct mctrl_priv *priv, int index, void *regs, unsigned int regval);
+
+struct mctrl_ops std_mctrl_ops =
+{
+ mctrl_set_std
+};
+
+struct drvmgr_drv_ops mctrl_ops =
+{
+ .init = {mctrl_init1, NULL, NULL, NULL},
+ .remove = mctrl_remove,
+ .info = NULL
+};
+
+struct amba_dev_id mctrl_ids[] =
+{
+ {VENDOR_ESA, ESA_MCTRL},
+ {VENDOR_GAISLER, GAISLER_FTMCTRL},
+ {VENDOR_GAISLER, GAISLER_FTSRCTRL},
+ {0, 0} /* Mark end of table */
+};
+
+struct amba_drv_info mctrl_drv_info =
+{
+ {
+ DRVMGR_OBJ_DRV, /* Driver */
+ NULL, /* Next driver */
+ NULL, /* Device list */
+ DRIVER_AMBAPP_MCTRL_ID, /* Driver ID */
+ "MCTRL_DRV", /* Driver Name */
+ DRVMGR_BUS_TYPE_AMBAPP, /* Bus Type */
+ &mctrl_ops,
+ NULL, /* Funcs */
+ 0, /* No devices yet */
+ 0,
+ },
+ &mctrl_ids[0]
+};
+
+void mctrl_register_drv (void)
+{
+ DBG("Registering MCTRL driver\n");
+ drvmgr_drv_register(&mctrl_drv_info.general);
+}
+
+static int mctrl_init1(struct drvmgr_dev *dev)
+{
+ struct mctrl_priv *priv;
+ struct amba_dev_info *ambadev;
+ struct ambapp_core *pnpinfo;
+ int i;
+ char res_name[16];
+ union drvmgr_key_value *value;
+ unsigned int start, length;
+
+ DBG("MCTRL[%d] on bus %s\n", dev->minor_drv, dev->parent->dev->name);
+ priv = dev->priv = grlib_calloc(1, sizeof(*priv));
+ if ( !priv )
+ return DRVMGR_NOMEM;
+ priv->dev = dev;
+
+ /* Get device information from AMBA PnP information */
+ ambadev = (struct amba_dev_info *)priv->dev->businfo;
+ if ( ambadev == NULL ) {
+ return DRVMGR_FAIL;
+ }
+ pnpinfo = &ambadev->info;
+ if ( pnpinfo->apb_slv == NULL ) {
+ /* LEON2 PnP systems are missing the APB interface */
+ priv->regs = (void *)0x80000000;
+ } else {
+ priv->regs = (void *)pnpinfo->apb_slv->start;
+ }
+
+ /* Depending on Hardware selection write/read routines */
+ switch ( pnpinfo->vendor ) {
+ case VENDOR_ESA:
+ switch ( pnpinfo->device ) {
+ case ESA_MCTRL:
+ default:
+ priv->ops = &std_mctrl_ops;
+ }
+ break;
+
+ case VENDOR_GAISLER:
+ switch ( pnpinfo->device ) {
+ case GAISLER_FTMCTRL:
+ case GAISLER_FTSRCTRL:
+ default:
+ priv->ops = &std_mctrl_ops;
+ }
+ break;
+
+ default:
+ priv->ops = &std_mctrl_ops;
+ break;
+ }
+
+ /* Find user configuration from bus resources */
+ priv->configured = 0;
+ strcpy(res_name, "mcfgX");
+ for(i=0; i<8; i++) {
+ res_name[4] = '1' + i;
+ value = drvmgr_dev_key_get(priv->dev, res_name, DRVMGR_KT_INT);
+ if ( value ) {
+ priv->mcfg[i] = value->i;
+ priv->configured |= (1<<i);
+ }
+ }
+
+ /* Init hardware registers right away, other devices may depend on it in init2(), also
+ * the washing depend on it.
+ */
+ for ( i=0; i<8; i++) {
+ if ( priv->configured & (1<<i) ) {
+ DBG("Setting MCFG%d to 0x%08x\n", i+1, priv->mcfg[i]);
+ priv->ops->mcfg_set(priv, i, priv->regs, priv->mcfg[i]);
+ }
+ }
+
+ /* Wash memory partitions if user wants */
+ for (i=0; i<9; i++) {
+ strcpy(res_name, "washXStart");
+ res_name[4] = '0' + i;
+ value = drvmgr_dev_key_get(priv->dev, res_name, DRVMGR_KT_INT);
+ if ( value ) {
+ start = value->i;
+ strcpy(res_name, "washXLength");
+ res_name[4] = '0' + i;
+ value = drvmgr_dev_key_get(priv->dev, res_name, DRVMGR_KT_INT);
+ if ( value ) {
+ length = value->i;
+
+ if ( length > 0 ) {
+ DBG("MCTRL: Washing 0x%08x-0x%08x\n", start, start+length-1);
+
+ MEMSET(priv, (void *)start, 0, length);
+ }
+ }
+ }
+ }
+
+ return DRVMGR_OK;
+}
+
+static int mctrl_remove(struct drvmgr_dev *dev)
+{
+ /* Nothing to be done */
+ DBG("Removing %s\n", dev->name);
+ return DRVMGR_OK;
+}
+
+/* Standard Operations */
+static void mctrl_set_std(struct mctrl_priv *priv, int index, void *regs, unsigned int regval)
+{
+ struct mctrl_regs *pregs = regs;
+
+ /* Store new value */
+ pregs->mcfg[index] = regval;
+}