Linux-2.6.12-rc2v2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!

1 files changed, 167 insertions, 0 deletions

diff --git a/include/asm-mips/xtalk/xwidget.h b/include/asm-mips/xtalk/xwidget.h
new file mode 100644
index 00000000000..b4a13d7405e
--- /dev/null
+++ b/include/asm-mips/xtalk/xwidget.h
@@ -0,0 +1,167 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * xwidget.h - generic crosstalk widget header file, derived from IRIX
+ * <sys/xtalk/xtalkwidget.h>, revision 1.32.
+ *
+ * Copyright (C) 1996, 1999 Silcon Graphics, Inc.
+ * Copyright (C) 1999 Ralf Baechle (ralf@gnu.org)
+ */
+#ifndef _ASM_XTALK_XWIDGET_H
+#define _ASM_XTALK_XWIDGET_H
+
+#include <linux/types.h>
+#include <asm/xtalk/xtalk.h>
+
+#define WIDGET_ID			0x04
+#define WIDGET_STATUS			0x0c
+#define WIDGET_ERR_UPPER_ADDR		0x14
+#define WIDGET_ERR_LOWER_ADDR		0x1c
+#define WIDGET_CONTROL			0x24
+#define WIDGET_REQ_TIMEOUT		0x2c
+#define WIDGET_INTDEST_UPPER_ADDR	0x34
+#define WIDGET_INTDEST_LOWER_ADDR	0x3c
+#define WIDGET_ERR_CMD_WORD		0x44
+#define WIDGET_LLP_CFG			0x4c
+#define WIDGET_TFLUSH			0x54
+
+/* WIDGET_ID */
+#define WIDGET_REV_NUM			0xf0000000
+#define WIDGET_PART_NUM			0x0ffff000
+#define WIDGET_MFG_NUM			0x00000ffe
+#define WIDGET_REV_NUM_SHFT		28
+#define WIDGET_PART_NUM_SHFT		12
+#define WIDGET_MFG_NUM_SHFT		1
+
+#define XWIDGET_PART_NUM(widgetid) (((widgetid) & WIDGET_PART_NUM) >> WIDGET_PART_NUM_SHFT)
+#define XWIDGET_REV_NUM(widgetid) (((widgetid) & WIDGET_REV_NUM) >> WIDGET_REV_NUM_SHFT)
+#define XWIDGET_MFG_NUM(widgetid) (((widgetid) & WIDGET_MFG_NUM) >> WIDGET_MFG_NUM_SHFT)
+
+/* WIDGET_STATUS */
+#define WIDGET_LLP_REC_CNT		0xff000000
+#define WIDGET_LLP_TX_CNT		0x00ff0000
+#define WIDGET_PENDING			0x0000001f
+
+/* WIDGET_ERR_UPPER_ADDR */
+#define	WIDGET_ERR_UPPER_ADDR_ONLY	0x0000ffff
+
+/* WIDGET_CONTROL */
+#define WIDGET_F_BAD_PKT		0x00010000
+#define WIDGET_LLP_XBAR_CRD		0x0000f000
+#define	WIDGET_LLP_XBAR_CRD_SHFT	12
+#define WIDGET_CLR_RLLP_CNT		0x00000800
+#define WIDGET_CLR_TLLP_CNT		0x00000400
+#define WIDGET_SYS_END			0x00000200
+#define WIDGET_MAX_TRANS		0x000001f0
+#define WIDGET_WIDGET_ID		0x0000000f
+
+/* WIDGET_INTDEST_UPPER_ADDR */
+#define WIDGET_INT_VECTOR		0xff000000
+#define WIDGET_INT_VECTOR_SHFT		24
+#define WIDGET_TARGET_ID		0x000f0000
+#define WIDGET_TARGET_ID_SHFT		16
+#define WIDGET_UPP_ADDR			0x0000ffff
+
+/* WIDGET_ERR_CMD_WORD */
+#define WIDGET_DIDN			0xf0000000
+#define WIDGET_SIDN			0x0f000000
+#define WIDGET_PACTYP			0x00f00000
+#define WIDGET_TNUM			0x000f8000
+#define WIDGET_COHERENT			0x00004000
+#define WIDGET_DS			0x00003000
+#define WIDGET_GBR			0x00000800
+#define WIDGET_VBPM			0x00000400
+#define WIDGET_ERROR			0x00000200
+#define WIDGET_BARRIER			0x00000100
+
+/* WIDGET_LLP_CFG */
+#define WIDGET_LLP_MAXRETRY		0x03ff0000
+#define WIDGET_LLP_MAXRETRY_SHFT	16
+#define WIDGET_LLP_NULLTIMEOUT		0x0000fc00
+#define WIDGET_LLP_NULLTIMEOUT_SHFT	10
+#define WIDGET_LLP_MAXBURST		0x000003ff
+#define WIDGET_LLP_MAXBURST_SHFT	0
+
+/*
+ * according to the crosstalk spec, only 32-bits access to the widget
+ * configuration registers is allowed.  some widgets may allow 64-bits
+ * access but software should not depend on it.  registers beyond the
+ * widget target flush register are widget dependent thus will not be
+ * defined here
+ */
+#ifndef __ASSEMBLY__
+typedef u32 widgetreg_t;
+
+/* widget configuration registers */
+typedef volatile struct widget_cfg {
+	widgetreg_t		w_pad_0;		/* 0x00 */
+	widgetreg_t		w_id;			/* 0x04 */
+	widgetreg_t		w_pad_1;		/* 0x08 */
+	widgetreg_t		w_status;		/* 0x0c */
+	widgetreg_t		w_pad_2;		/* 0x10 */
+	widgetreg_t		w_err_upper_addr;	/* 0x14 */
+	widgetreg_t		w_pad_3;		/* 0x18 */
+	widgetreg_t		w_err_lower_addr;	/* 0x1c */
+	widgetreg_t		w_pad_4;		/* 0x20 */
+	widgetreg_t		w_control;		/* 0x24 */
+	widgetreg_t		w_pad_5;		/* 0x28 */
+	widgetreg_t		w_req_timeout;		/* 0x2c */
+	widgetreg_t		w_pad_6;		/* 0x30 */
+	widgetreg_t		w_intdest_upper_addr;	/* 0x34 */
+	widgetreg_t		w_pad_7;		/* 0x38 */
+	widgetreg_t		w_intdest_lower_addr;	/* 0x3c */
+	widgetreg_t		w_pad_8;		/* 0x40 */
+	widgetreg_t		w_err_cmd_word;		/* 0x44 */
+	widgetreg_t		w_pad_9;		/* 0x48 */
+	widgetreg_t		w_llp_cfg;		/* 0x4c */
+	widgetreg_t		w_pad_10;		/* 0x50 */
+	widgetreg_t		w_tflush;		/* 0x54 */
+} widget_cfg_t;
+
+typedef struct {
+	unsigned	didn:4;
+	unsigned	sidn:4;
+	unsigned	pactyp:4;
+	unsigned	tnum:5;
+	unsigned	ct:1;
+	unsigned	ds:2;
+	unsigned	gbr:1;
+	unsigned	vbpm:1;
+	unsigned	error:1;
+	unsigned	bo:1;
+	unsigned	other:8;
+} w_err_cmd_word_f;
+
+typedef union {
+	widgetreg_t		r;
+	w_err_cmd_word_f	f;
+} w_err_cmd_word_u;
+
+typedef struct xwidget_info_s *xwidget_info_t;
+
+/*
+ * Crosstalk Widget Hardware Identification, as defined in the Crosstalk spec.
+ */
+typedef struct xwidget_hwid_s {
+	xwidget_part_num_t	part_num;
+	xwidget_rev_num_t	rev_num;
+	xwidget_mfg_num_t	mfg_num;
+} *xwidget_hwid_t;
+
+
+/*
+ * Returns 1 if a driver that handles devices described by hwid1 is able
+ * to manage a device with hardwareid hwid2.  NOTE: We don't check rev
+ * numbers at all.
+ */
+#define XWIDGET_HARDWARE_ID_MATCH(hwid1, hwid2) \
+	(((hwid1)->part_num == (hwid2)->part_num) && \
+	(((hwid1)->mfg_num == XWIDGET_MFG_NUM_NONE) || \
+	((hwid2)->mfg_num == XWIDGET_MFG_NUM_NONE) || \
+	((hwid1)->mfg_num == (hwid2)->mfg_num)))
+
+#endif /* !__ASSEMBLY__ */
+
+#endif /* _ASM_XTALK_XWIDGET_H */