new: FSL and MSR support

common/cmd_mfsl.c

@@ -0,0 +1,265 @@
+/*
+ * (C) Copyright 2007 Michal Simek
+ *
+ * Michal  SIMEK <monstr@monstr.eu>
+ *
+ * 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
+ */
+
+/*
+ * Microblaze FSL support
+ */
+
+#include <common.h>
+#include <config.h>
+#include <command.h>
+#include <asm/asm.h>
+
+#if (CONFIG_COMMANDS & CFG_CMD_MFSL)
+
+int do_frd (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+{
+	unsigned int fslnum;
+	unsigned int num;
+	unsigned int blocking;
+
+	if (argc < 2) {
+		printf ("Usage:\n%s\n", cmdtp->usage);
+		return 1;
+	}
+
+	fslnum = (unsigned int)simple_strtoul (argv[1], NULL, 16);
+	blocking = (unsigned int)simple_strtoul (argv[2], NULL, 16);
+	if (fslnum < 0 || fslnum >= XILINX_FSL_NUMBER) {
+		puts ("Bad number of FSL\n");
+		printf ("Usage:\n%s\n", cmdtp->usage);
+		return 1;
+	}
+
+	switch (fslnum) {
+#if (XILINX_FSL_NUMBER > 0)
+	case 0:
+		if (blocking) {
+			GET (num, 0);
+		} else {
+			NGET (num, 0);
+		}
+		break;
+#endif
+#if (XILINX_FSL_NUMBER > 1)
+	case 1:
+		if (blocking) {
+			GET (num, 1);
+		} else {
+			NGET (num, 1);
+		}
+		break;
+#endif
+#if (XILINX_FSL_NUMBER > 2)
+	case 2:
+		if (blocking) {
+			GET (num, 2);
+		} else {
+			NGET (num, 2);
+		}
+		break;
+#endif
+#if (XILINX_FSL_NUMBER > 3)
+	case 3:
+		if (blocking) {
+			GET (num, 3);
+		} else {
+			NGET (num, 3);
+		}
+		break;
+#endif
+#if (XILINX_FSL_NUMBER > 4)
+	case 4:
+		if (blocking) {
+			GET (num, 4);
+		} else {
+			NGET (num, 4);
+		}
+		break;
+#endif
+#if (XILINX_FSL_NUMBER > 5)
+	case 5:
+		if (blocking) {
+			GET (num, 5);
+		} else {
+			NGET (num, 5);
+		}
+		break;
+#endif
+#if (XILINX_FSL_NUMBER > 6)
+	case 6:
+		if (blocking) {
+			GET (num, 6);
+		} else {
+			NGET (num, 6);
+		}
+		break;
+#endif
+#if (XILINX_FSL_NUMBER > 7)
+	case 7:
+		if (blocking) {
+			GET (num, 7);
+		} else {
+			NGET (num, 7);
+		}
+		break;
+#endif
+	default:
+		return 1;
+	}
+
+	printf ("%01x: 0x%08lx - %s read\n", fslnum, num,
+		blocking ? "blocking" : "non blocking");
+	return 0;
+}
+
+int do_fwr (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+{
+	unsigned int fslnum;
+	unsigned int num;
+	unsigned int blocking;
+
+	if (argc < 3) {
+		printf ("Usage:\n%s\n", cmdtp->usage);
+		return 1;
+	}
+
+	fslnum = (unsigned int)simple_strtoul (argv[1], NULL, 16);
+	num = (unsigned int)simple_strtoul (argv[2], NULL, 16);
+	blocking = (unsigned int)simple_strtoul (argv[3], NULL, 16);
+	if (fslnum < 0 || fslnum >= XILINX_FSL_NUMBER) {
+		printf ("Bad number of FSL\nUsage:\n%s\n", cmdtp->usage);
+		return 1;
+	}
+
+	switch (fslnum) {
+#if (XILINX_FSL_NUMBER > 0)
+	case 0:
+		if (blocking) {
+			PUT (num, 0);
+		} else {
+			NPUT (num, 0);
+		}
+		break;
+#endif
+#if (XILINX_FSL_NUMBER > 1)
+	case 1:
+		if (blocking) {
+			PUT (num, 1);
+		} else {
+			NPUT (num, 1);
+		}
+		break;
+#endif
+#if (XILINX_FSL_NUMBER > 2)
+	case 2:
+		if (blocking) {
+			PUT (num, 2);
+		} else {
+			NPUT (num, 2);
+		}
+		break;
+#endif
+#if (XILINX_FSL_NUMBER > 3)
+	case 3:
+		if (blocking) {
+			PUT (num, 3);
+		} else {
+			NPUT (num, 3);
+		}
+		break;
+#endif
+#if (XILINX_FSL_NUMBER > 4)
+	case 4:
+		if (blocking) {
+			PUT (num, 4);
+		} else {
+			NPUT (num, 4);
+		}
+		break;
+#endif
+#if (XILINX_FSL_NUMBER > 5)
+	case 5:
+		if (blocking) {
+			PUT (num, 5);
+		} else {
+			NPUT (num, 5);
+		}
+		break;
+#endif
+#if (XILINX_FSL_NUMBER > 6)
+	case 6:
+		if (blocking) {
+			PUT (num, 6);
+		} else {
+			NPUT (num, 6);
+		}
+		break;
+#endif
+#if (XILINX_FSL_NUMBER > 7)
+	case 7:
+		if (blocking) {
+			PUT (num, 7);
+		} else {
+			NPUT (num, 7);
+		}
+		break;
+#endif
+	default:
+		return 1;
+	}
+
+	printf ("%01x: 0x%08lx - %s write\n", fslnum, num,
+		blocking ? "blocking" : "non blocking");
+	return 0;
+
+}
+
+int do_rmsr (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+{
+	int val = 0;
+
+	if (argc < 1) {
+		printf ("Usage:\n%s\n", cmdtp->usage);
+		return 1;
+	}
+	RMSR (val);
+	printf ("rmsr: 0x%08lx\n", val);
+	return 0;
+}
+
+/***************************************************/
+
+U_BOOT_CMD (frd, 3, 1, do_frd,
+	    "frd     - read data from FSL\n",
+	    "- [fslnum [0|x]],  (0 - non blocking|x - blocking).\n");
+
+U_BOOT_CMD (fwr, 4, 1, do_fwr,
+	    "fwr     - write data to FSL\n",
+	    "- [fslnum data [0|x]],  (0 - non blocking|x - blocking).\n");
+
+U_BOOT_CMD (rmsr, 1, 1, do_rmsr,
+	    "rmsr    - read MSR register\n", "- read MSR register.\n");
+
+#endif	/* CONFIG_MICROBLAZE & CFG_CMD_MFSL */

include/asm-microblaze/asm.h

@@ -0,0 +1,37 @@
+/*
+ * (C) Copyright 2007 Michal Simek
+ *
+ * Michal  SIMEK <monstr@monstr.eu>
+ *
+ * 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
+ */
+
+/* FSL macros */
+#define NGET(val, fslnum) \
+	__asm__ __volatile__ ("nget %0, rfsl" #fslnum :"=r" (val));
+#define GET(val, fslnum) \
+	__asm__ __volatile__ ("get %0, rfsl" #fslnum :"=r" (val));
+#define NPUT(val, fslnum) \
+	__asm__ __volatile__ ("nput %0, rfsl" #fslnum ::"r" (val));
+#define PUT(val, fslnum) \
+	__asm__ __volatile__ ("put %0, rfsl" #fslnum ::"r" (val));
+								
+/* CPU dependent */
+#define RMSR(val) \
+	__asm__ __volatile__ ("mfs %0,rmsr":"=r" (val));