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Software for White Rabbit PTP Core
Commit 5d28f0fc authored by Tomasz Wlostowski's avatar Tomasz Wlostowski
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sis8300ku: generate a (hopefully) unique MAC address from the FPGA's 'Device DNA'

parent a4011205
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Showing with 46 additions and 7 deletions
boards/sis8300ku/board.c
View file @ 5d28f0fc
......@@ -6,6 +6,8 @@
#include "storage.h"
#include <wrc-event.h>
static uint8_t board_mac_addr[6];
extern uint32_t sdbfs_default_bin[] =
{
#include "sdbfs-image.h"
......@@ -13,6 +15,31 @@ extern uint32_t sdbfs_default_bin[] =
static const int32_t flash_entry_points[] = { 0x0f00000, -1 };
static void sis83k_read_persistent_mac( uint8_t *mac )
{
uint32_t id, ver, nrw, nro;
uint32_t sn;
uint32_t dna[3];
diag_read_info(&id, &ver, &nrw, &nro );
board_dbg("diags: id %d ver %d nrw %d nro %d\n", id, ver, nrw, nro );
diag_read_word(nro - 4, DIAG_RO_BANK, &dna[0] );
diag_read_word(nro - 3, DIAG_RO_BANK, &dna[1] );
diag_read_word(nro - 2, DIAG_RO_BANK, &dna[2] );
diag_read_word(nro - 1, DIAG_RO_BANK, &sn );
board_dbg("S/N %x DNA %08x %08x %08x\n", sn, dna[0], dna[1], dna[2] );
// well, we can't do anything else than generate this crap from the device's DNA. The serial numbers
// provided by the MMC don't appear to be really UNIQUE...
uint32_t seed = dna[0] ^ dna[1] ^ dna[2];
mac[0] = 0x22;
mac[1] = 0x33;
mac[2] = (seed >> 24) & 0xff;
mac[3] = (seed >> 16) & 0xff;
mac[4] = (seed >> 8) & 0xff;
mac[5] = seed & 0xff;
}
int wrc_board_early_init()
{
int memtype;
......@@ -41,8 +68,7 @@ int wrc_board_early_init()
if( id != 0x00012018 && id != 0xC22019 )
{
pp_printf("Can't find a matching flash memory. Read ID = 0x%08x\n", id);
return 0;
pp_printf("Warning! The flash memory has unsupported JEDEC ID: 0x%08x\n", id);
}
/*
......@@ -58,14 +84,23 @@ int wrc_board_early_init()
*/
storage_mount( &wrc_storage_dev );
// fixme: read MAC address from the MMC
uint8_t mac[6];
sis83k_read_persistent_mac( board_mac_addr );
board_dbg("Board MAC Address: %02x:%02x:%02x:%02x:%02x:%02x\n", board_mac_addr[0], board_mac_addr[1], board_mac_addr[2], board_mac_addr[3], board_mac_addr[4], board_mac_addr[5]);
/* reset the networking part of the WRCore and start the WR Endpoint */
net_rst();
storage_get_persistent_mac(0, mac);
ep_init( &wrc_endpoint_dev, (void *) BASE_EP );
ep_set_mac_addr( &wrc_endpoint_dev, board_mac_addr );
board_dbg("Board MAC Address: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
netif_register_device( "wru0", "default", &wrc_endpoint_dev );
ep_set_mac_addr( &wrc_endpoint_dev, mac );
/* Sleep for 1s to make sure WRS v4.2 always realizes that
* the link is down */
timer_delay_ms(200);
ep_enable( &wrc_endpoint_dev, 1, 1);
timer_delay_ms(200);
spll_set_aux_mode( 0, SPLL_AUX_MODE_TRACKING_SOURCE );
spll_set_aux_mode( 1, SPLL_AUX_MODE_TRACKING_SOURCE );
......
boards/sis8300ku/board.h
View file @ 5d28f0fc
......@@ -11,6 +11,7 @@
*/
#define BOARD_USE_CUSTOM_SDBFS 1
#define BOARD_HAS_CUSTOM_NETWORK_INIT 1
/* Fixed base addresses */
#define BASE_MINIC 0x20000
......@@ -20,6 +21,9 @@
#define BASE_SYSCON 0x20400
#define BASE_UART 0x20500
#define BASE_ONEWIRE 0x20600
#define BASE_GPIO 0x28080
//#define BASE_ETHERNOBE_CFG 0x20700
/* Board-specific parameters */
......
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