2007-09-05 Daniel Hellstrom <daniel@gaisler.com>

	* shared/amba/ambapp.c, shared/include/ambapp.h: New files.

1 files changed, 279 insertions, 0 deletions

diff --git a/c/src/lib/libbsp/sparc/shared/include/ambapp.h b/c/src/lib/libbsp/sparc/shared/include/ambapp.h
new file mode 100644
index 0000000000..e63648d13c
--- /dev/null
+++ b/c/src/lib/libbsp/sparc/shared/include/ambapp.h
@@ -0,0 +1,279 @@
+/*
+ *  AMBA Plag & Play Bus Driver Macros for LEON2
+ *
+ *  Macros used for AMBA Plug & Play bus scanning
+ *
+ *  COPYRIGHT (c) 2007.
+ *  Gaisler Research
+ *
+ *  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.
+ *
+ *  $Id$
+ */
+
+#ifndef __AMBAPP_H__
+#define __AMBAPP_H__
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define AMBA_CONF_AREA 0xff000
+#define AMBA_AHB_SLAVE_CONF_AREA (1 << 11)
+
+#define AMBA_AHB_CONF_WORDS 8
+#define AMBA_APB_CONF_WORDS 2
+#define AMBA_AHB_MASTERS 16
+#define AMBA_AHB_SLAVES 16
+#define AMBA_APB_SLAVES 16
+#define AMBA_APBUARTS 8
+
+/* Vendor codes */
+#define VENDOR_GAISLER   1
+#define VENDOR_PENDER    2
+#define VENDOR_ESA       4
+#define VENDOR_OPENCORES 8
+
+/* Gaisler Research device id's */
+#define GAISLER_LEON3     0x03
+#define GAISLER_LEON3DSU  0x04
+#define GAISLER_ETHAHB    0x05
+#define	GAISLER_APBMST    0x06
+#define	GAISLER_AHBUART   0x07
+#define	GAISLER_SRCTRL    0x08
+#define GAISLER_SDCTRL    0x09
+#define	GAISLER_APBUART   0x0C
+#define	GAISLER_IRQMP     0x0D
+#define	GAISLER_AHBRAM    0x0E
+#define	GAISLER_GPTIMER   0x11
+#define	GAISLER_PCITRG    0x12
+#define	GAISLER_PCISBRG   0x13
+#define	GAISLER_PCIFBRG   0x14
+#define	GAISLER_PCITRACE  0x15
+#define	GAISLER_DMACTRL   0x16
+#define	GAISLER_OCCAN     0x19
+#define GAISLER_PIOPORT   0x1A
+#define GAISLER_ETHMAC    0x1D
+#define GAISLER_SPACEWIRE 0x1f
+#define GAISLER_AHB2AHB   0x20
+#define GAISLER_GRHCAN    0x34
+#define GAISLER_GRFIFO    0x35
+#define GAISLER_GRPULSE   0x37
+#define GAISLER_GRTIMER   0x38
+#define GAISLER_FTAHBRAM  0x50
+#define GAISLER_FTMCTRL   0x54
+#define GAISLER_BRM       0x72
+
+
+/* European Space Agency device id's */
+#define ESA_LEON2        0x2
+#define ESA_MCTRL        0xF
+#define ESA_SPW2         0x12
+
+/* Opencores device id's */
+#define OPENCORES_PCIBR  0x4
+#define OPENCORES_ETHMAC 0x5
+
+/* 
+ *
+ * Macros for manipulating Configuration registers  
+ *
+ */
+#define amba_get_confword(tab, index, word) (*((tab).addr[(index)]+(word)))
+
+#define amba_vendor(x) (((x) >> 24) & 0xff)
+
+#define amba_device(x) (((x) >> 12) & 0xfff)
+
+#define amba_ahb_get_membar(tab, index, nr) (*((tab).addr[(index)]+4+(nr)))
+
+#define amba_ahb_get_custom(tab, index, nr) (*((tab).addr[(index)]+1+(nr)))
+
+#define amba_apb_get_membar(tab, index) (*((tab).addr[(index)]+1))
+
+#define amba_membar_start(mbar) (((mbar) & 0xfff00000) & (((mbar) & 0xfff0) << 16))
+
+#define amba_iobar_start(base, iobar) ((base) | ((((iobar) & 0xfff00000)>>12) & (((iobar) & 0xfff0)<<4)) )
+
+#define amba_irq(conf) ((conf) & 0x1f)
+
+#define amba_ver(conf) (((conf)>>5) & 0x1f)
+
+#define amba_membar_type(mbar) ((mbar) & 0xf)
+
+#define AMBA_TYPE_APBIO 0x1
+#define AMBA_TYPE_MEM   0x2
+#define AMBA_TYPE_AHBIO 0x3
+
+#define AMBA_TYPE_AHBIO_ADDR(addr,base_ioarea) ((unsigned int)(base_ioarea) | ((addr) >> 12))
+
+/*
+ *  Types and structure used for AMBA Plug & Play bus scanning 
+ *
+ */
+typedef struct amba_device_table {
+  int devnr;                    /* numbrer of devices on AHB or APB bus */
+  unsigned int *addr[16];       /* addresses to the devices configuration tables */
+} amba_device_table;
+
+typedef struct {
+  int devnr;
+  unsigned int *addr[AMBA_APB_SLAVES];  /* addresses to the devices configuration tables */
+  unsigned int apbmst[AMBA_APB_SLAVES]; /* pointer to AHB slave (which is a APB master) */
+} amba_apb_dev;
+
+struct amba_mmap {
+  unsigned int cpu_adr;
+  unsigned int size;
+  unsigned int remote_amba_adr;
+};
+
+typedef struct _amba_confarea_type amba_confarea_type;
+
+struct _amba_confarea_type {
+  amba_confarea_type  *next;   /* next bus in chain */
+  int                 notroot; /* is root of a bus (mother AHB has 64 masters/slaves rest 16) */
+	unsigned int        ioarea;
+  struct amba_mmap    *mmaps;
+  amba_device_table   ahbmst;
+  amba_device_table   ahbslv;
+  amba_apb_dev        apbslv;
+};
+
+typedef struct {
+  unsigned int start, irq, bus_id;
+} amba_apb_device;
+
+typedef struct {
+  unsigned int start[4], irq, ver;
+} amba_ahb_device;
+
+/* Scans AMBA Plug&Play Information and convers that information
+ * to a more readable format in RAM.
+ *
+ * Will scan for - AHB Masters
+ *               - AHB Slaves
+ *               - APB Slaves (if a AHB/APB bridge is found)
+ *
+ * \param amba_conf AMBA P&P device info is placed here.
+ * \param ioarea address of AMBA Plug&Play information,
+ *             on LEON3 systems default is 0xfff00000
+ * \param mmaps Memory mmap specific to this amba bus, 
+ *              if NULL no translation will be made (default).
+ *              A array of maps, ending with a entry with size=0.
+ */
+void amba_scan (amba_confarea_type * amba_conf, unsigned int ioarea,
+                struct amba_mmap *mmaps);
+
+/* Print AMBA Plug&Play info on terminal */
+void amba_print_conf (amba_confarea_type * amba_conf);
+
+
+
+
+/***** APB SLAVES *****/
+
+/* Return number of APB Slave devices which has given vendor and device */
+int amba_get_number_apbslv_devices (amba_confarea_type * amba_conf, int vendor,
+                                    int device);
+
+/* Get First APB Slave device of this vendor&device id */
+int amba_find_apbslv (amba_confarea_type * amba_conf, int vendor, int device,
+                      amba_apb_device * dev);
+
+/* Get APB Slave device of this vendor&device id. (setting nr to 0 is eqivalent to calling amba_find_apbslv() ) */
+int amba_find_next_apbslv (amba_confarea_type * amba_conf, int vendor,
+                           int device, amba_apb_device * dev, int index);
+
+/* Get first nr APB Slave devices, put them into dev (which is an array of nr length) */
+int amba_find_apbslvs (amba_confarea_type * amba_conf, int vendor, int device,
+                       amba_apb_device * devs, int maxno);
+
+
+
+/***** AHB SLAVES *****/
+
+/* Return number of AHB Slave devices which has given vendor and device */
+int amba_get_number_ahbslv_devices (amba_confarea_type * amba_conf, int vendor,
+                                    int device);
+
+/* Get First AHB Slave device of this vendor&device id */
+int amba_find_ahbslv (amba_confarea_type * amba_conf, int vendor, int device,
+                      amba_ahb_device * dev);
+
+/* Get AHB Slave device of this vendor&device id. (setting nr to 0 is eqivalent to calling amba_find_ahbslv() ) */
+int amba_find_next_ahbslv (amba_confarea_type * amba_conf, int vendor,
+                           int device, amba_ahb_device * dev, int index);
+
+/* Get first nr AHB Slave devices, put them into dev (which is an array of nr length) */
+int amba_find_ahbslvs (amba_confarea_type * amba_conf, int vendor, int device,
+                       amba_ahb_device * devs, int maxno);
+
+
+
+/***** AHB MASTERS *****/
+
+/* Return number of AHB Master devices which has given vendor and device */
+int amba_get_number_ahbmst_devices (amba_confarea_type * amba_conf, int vendor,
+                                    int device);
+
+/* Get First AHB Master device of this vendor&device id */
+int amba_find_ahbmst (amba_confarea_type * amba_conf, int vendor, int device,
+                      amba_ahb_device * dev);
+
+/* Get AHB Master device of this vendor&device id. (setting nr to 0 is eqivalent to calling amba_find_ahbmst() ) */
+int amba_find_next_ahbmst (amba_confarea_type * amba_conf, int vendor,
+                           int device, amba_ahb_device * dev, int index);
+
+/* Get first nr AHB Master devices, put them into dev (which is an array of nr length) */
+int amba_find_ahbmsts (amba_confarea_type * amba_conf, int vendor, int device,
+                       amba_ahb_device * devs, int maxno);
+
+
+/******** AMBA DEVICES *******/
+
+/* ESA MEMORY CONTROLLER */
+typedef struct {
+  unsigned int mcfg1;
+  unsigned int mcfg2;
+  unsigned int mcfg3;
+} ambapp_regmap_mctrl;
+
+/* APB UART */
+typedef struct {
+  volatile unsigned int data;
+  volatile unsigned int status;
+  volatile unsigned int ctrl;
+  volatile unsigned int scaler;
+} ambapp_apb_uart;
+
+typedef struct {
+  volatile unsigned int ilevel;
+  volatile unsigned int ipend;
+  volatile unsigned int iforce;
+  volatile unsigned int iclear;
+  volatile unsigned int mpstat;
+  volatile unsigned int notused01;
+  volatile unsigned int notused02;
+  volatile unsigned int notused03;
+  volatile unsigned int notused10;
+  volatile unsigned int notused11;
+  volatile unsigned int notused12;
+  volatile unsigned int notused13;
+  volatile unsigned int notused20;
+  volatile unsigned int notused21;
+  volatile unsigned int notused22;
+  volatile unsigned int notused23;
+  volatile unsigned int mask[16];
+  volatile unsigned int force[16];
+} LEON3_IrqCtrl_Regs_Map;
+
+/*****************************/
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif