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/*
* $HeadURL: https://svn.fzd.de/repo/concast/FWF_Projects/FWKE/hw_sp605/bsp_zpuahb/software/ambainfo.c $
* $Date$
* $Author$
* $Revision$
*/
#include <types.h>
/*
print some spaces to make output alignment columnwise
*/
void fill(uint8_t length, uint8_t fillupto)
{
while (length < fillupto)
{
putchar(' ');
length++;
}
}
////////////////////////////////////////////////////////////
// print vendor
void print_vendor_device( uint8_t vendor, uint8_t device)
{
switch( vendor)
{
case 0x01: putstr("gaisler ");
switch( device)
{
case 0x06: putstr("AHB/APB Bridge"); break;
case 0x0c: putstr("Generic UART"); break;
case 0x0f: putstr("Dual-port AHB SRAM module"); break;
case 0x11: putstr("Modular Timer Unit"); break;
case 0x1a: putstr("General Purpose I/O port"); break;
case 0x1d: putstr("GR 10/100 Mbit Ethernet MAC"); break;
case 0x28: putstr("AMBA Wrapper for OC I2C-master");break;
case 0x45: putstr("SPI Memory Controller"); break;
case 0x61: putstr("VGA controller"); break;
case 0x87: putstr("General Purpose Register"); break;
default : putstr("unknown device"); break;
}
break;
case 0x04: putstr("ESA ");
switch( device)
{
case 0x0f: putstr("Leon2 Memory Controller"); break;
default : putstr("unknown device"); break;
}
break;
case 0x55: putstr("HZDR ");
switch( device)
{
case 0x01: putstr("ZPU AHB Wrapper"); break;
case 0x02: putstr("ZPU Memory wrapper"); break;
case 0x03: putstr("DCM phase shift control"); break;
case 0x04: putstr("debug console"); break;
case 0x05: putstr("trigger generator"); break;
case 0x06: putstr("beam position monitor"); break;
case 0x07: putstr("debug buffer control"); break;
case 0x08: putstr("EA-DOGS display driver"); break;
case 0x09: putstr("debug tracer memory"); break;
case 0x0a: putstr("differential current monitor"); break;
default : putstr("unknown device"); break;
}
break;
default : putstr("vendor? "); break;
}
}
////////////////////////////////////////////////////////////
// apb info
void apb_info( uint32_t* addr, uint8_t verbose)
{
// identification register
uint16_t vendor;
uint16_t device;
uint16_t version;
uint16_t irq;
uint32_t dev_addr;
uint32_t* config;
uint32_t* idreg_addr;
uint32_t idreg_word;
uint32_t* bar_addr;
uint32_t bar_word;
uint32_t apb_addr;
uint32_t apb_unit;
config = addr;
apb_addr = (*config & 0xfff00000); // get apb address
// we can have up to 512 slaves, but we scan only 16
// to avoid double scans at the moment
for (apb_unit = 0; apb_unit < 16; apb_unit++)
{
idreg_addr = (uint32_t*) (apb_addr | 0x000ff000 | (apb_unit << 3));
idreg_word = *idreg_addr;
bar_addr = idreg_addr + 1;
bar_word = *bar_addr;
dev_addr = apb_addr | ((bar_word & 0xfff00000) >> 12);
vendor = (idreg_word >> 24) & 0xff;
device = (idreg_word >> 12) & 0xfff;
version = (idreg_word >> 5) & 0xf;
irq = (idreg_word >> 0) & 0x1f;
if (vendor > 0)
{
putstr(" apbslv");
fill( putint( apb_unit), 4);
// print idreg word
putstr("vend 0x"); fill( puthex( 8, vendor), 4);
putstr("dev 0x"); fill( puthex(16, device), 6);
putstr("ver "); fill( putint( version), 4);
putstr("irq "); fill( putint( irq), 4);
putstr("addr 0x"); fill( puthex(32, dev_addr), 10);
if (verbose)
print_vendor_device( vendor, device);
putchar('\n');
}
}
}
void ahb_info( uint8_t verbose)
{
uint16_t vendor;
uint16_t device;
uint16_t version;
uint16_t irq;
uint32_t address;
uint16_t cp;
uint16_t mask;
uint16_t type;
uint32_t config_word;
uint32_t bar;
uint32_t ahb_unit;
uint8_t i;
uint32_t* config_addr = (uint32_t*) 0xfffff000;
uint32_t* bar_addr = (uint32_t*) 0xfffff010;
// check for 64 master and 64 slaves
for (ahb_unit = 0; ahb_unit < 128; ahb_unit++)
{
config_addr = (uint32_t*) (0xfffff000 + (ahb_unit << 5));
bar_addr = (uint32_t*) config_addr + 4;
config_word = *config_addr;
vendor = (config_word >> 24) & 0xff;
device = (config_word >> 12) & 0xfff;
version = (config_word >> 5) & 0xf;
irq = (config_word >> 0) & 0x1f;
if (vendor > 0)
{
if (ahb_unit < 64)
{
putstr("ahbmst");
fill( putint( ahb_unit), 6);
}
else
{
putstr("ahbslv");
fill( putint( ahb_unit - 64), 6);
}
// print config word
putstr("vend 0x"); fill( puthex( 8, vendor), 4);
putstr("dev 0x"); fill( puthex(16, device), 6);
putstr("ver "); fill( putint( version), 4);
putstr("irq "); fill( putint( irq), 4);
putstr("addr 0x"); fill( puthex(32, *bar_addr & 0xfff00000), 10);
if (verbose)
print_vendor_device( vendor, device);
putchar('\n');
if ((vendor == 1) && (device == 6))
apb_info( bar_addr, verbose);
/*
// check all 4 bank address registers
for (i = 0; i < 4; i++)
{
bar = *bar_addr;
address = bar & 0xfff0000;
cp = (bar >> 16) & 0xf;
mask = (bar >> 4) & 0xfff;
type = (bar >> 0) & 0xf;
// print bank address register
putstr("address 0x"); fill( puthex( 32, address), 6);
putstr("c/p 0x"); fill( puthex( 8, cp), 6);
putstr("mask 0x"); fill( puthex( 16, mask), 6);
putstr("type 0x"); fill( puthex( 8, type), 6);
putchar('\n');
bar_addr++;
} // for i
*/
} // vendor > 0
} // for ahb_unit
}
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