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-rw-r--r--board/mvblue/mvblue.c253
1 files changed, 253 insertions, 0 deletions
diff --git a/board/mvblue/mvblue.c b/board/mvblue/mvblue.c
new file mode 100644
index 0000000..6827a23
--- /dev/null
+++ b/board/mvblue/mvblue.c
@@ -0,0 +1,253 @@
+/*
+ * GNU General Public License for more details.
+ *
+ * MATRIX Vision GmbH / June 2002-Nov 2003
+ * Andre Schwarz
+ */
+
+#include <common.h>
+#include <mpc824x.h>
+#include <asm/io.h>
+#include <ns16550.h>
+
+#ifdef CONFIG_PCI
+ #include <pci.h>
+#endif
+
+u32 get_BoardType(void);
+
+#define PCI_CONFIG(b,d,f,r) cpu_to_le32(0x80000000 | ((b&0xff)<<16) \
+ | ((d&0x1f)<<11) \
+ | ((f&0x7)<<7) \
+ | (r&0xfc) )
+
+int mv_pci_read( int bus, int dev, int func, int reg )
+{
+ *(u32*)(0xfec00cf8) = PCI_CONFIG(bus,dev,func,reg);
+ asm("sync");
+ return cpu_to_le32( *(u32*)(0xfee00cfc) );
+}
+u32 get_BoardType() {
+ return ( mv_pci_read(0,0xe,0,0) == 0x06801095 ? 0 : 1 );
+}
+
+void init_2nd_DUART(void)
+{
+ NS16550_t console = (NS16550_t)CFG_NS16550_COM2;
+ int clock_divisor = CFG_NS16550_CLK / 16 / CONFIG_BAUDRATE;
+ *(u8*)(0xfc004511) = 0x1;
+ NS16550_init(console, clock_divisor);
+}
+void hw_watchdog_reset(void)
+{
+ if (get_BoardType() == 0 ) {
+ *(u32*)(0xff000005) = 0;
+ asm("sync");
+ }
+}
+int checkboard (void)
+{
+ DECLARE_GLOBAL_DATA_PTR;
+ ulong busfreq = get_bus_freq(0);
+ char buf[32];
+ u32 BoardType = get_BoardType();
+ char *BoardName[2] = { "mvBlueBOX", "mvBlueLYNX" };
+ char *p;
+ bd_t *bd = gd->bd;
+
+ hw_watchdog_reset();
+
+ printf("U-Boot (%s) running on mvBLUE device.\n", MV_VERSION);
+ printf(" Found %s running at %s MHz memory clock.\n", BoardName[BoardType], strmhz(buf, busfreq) );
+
+ init_2nd_DUART();
+
+ if ( (p = getenv("console_nr")) != NULL ) {
+ unsigned long con_nr = simple_strtoul( p, NULL, 10) & 3;
+ bd->bi_baudrate &= ~3;
+ bd->bi_baudrate |= con_nr & 3;
+ }
+ return 0;
+}
+
+long int initdram (int board_type)
+{
+ int i, cnt;
+ volatile uchar * base= CFG_SDRAM_BASE;
+ volatile ulong * addr;
+ ulong save[32];
+ ulong val, ret = 0;
+
+ for (i=0, cnt=(CFG_MAX_RAM_SIZE / sizeof(long)) >> 1; cnt > 0; cnt >>= 1) {
+ addr = (volatile ulong *)base + cnt;
+ save[i++] = *addr;
+ *addr = ~cnt;
+ }
+
+ addr = (volatile ulong *)base;
+ save[i] = *addr;
+ *addr = 0;
+
+ if (*addr != 0) {
+ *addr = save[i];
+ goto Done;
+ }
+
+ for (cnt = 1; cnt <= CFG_MAX_RAM_SIZE / sizeof(long); cnt <<= 1) {
+ addr = (volatile ulong *)base + cnt;
+ val = *addr;
+ *addr = save[--i];
+ if (val != ~cnt) {
+ ulong new_bank0_end = cnt * sizeof(long) - 1;
+ ulong mear1 = mpc824x_mpc107_getreg(MEAR1);
+ ulong emear1 = mpc824x_mpc107_getreg(EMEAR1);
+ mear1 = (mear1 & 0xFFFFFF00) |
+ ((new_bank0_end & MICR_ADDR_MASK) >> MICR_ADDR_SHIFT);
+ emear1 = (emear1 & 0xFFFFFF00) |
+ ((new_bank0_end & MICR_ADDR_MASK) >> MICR_EADDR_SHIFT);
+ mpc824x_mpc107_setreg(MEAR1, mear1);
+ mpc824x_mpc107_setreg(EMEAR1, emear1);
+ ret = cnt * sizeof(long);
+ goto Done;
+ }
+ }
+
+ ret = CFG_MAX_RAM_SIZE;
+Done:
+ return ret;
+}
+
+/* ------------------------------------------------------------------------- */
+u8 *dhcp_vendorex_prep(u8 *e)
+{
+char *ptr;
+
+ /* DHCP vendor-class-identifier = 60 */
+ if ((ptr = getenv("dhcp_vendor-class-identifier"))) {
+ *e++ = 60;
+ *e++ = strlen(ptr);
+ while (*ptr)
+ *e++ = *ptr++;
+ }
+ /* my DHCP_CLIENT_IDENTIFIER = 61 */
+ if ((ptr = getenv("dhcp_client_id"))) {
+ *e++ = 61;
+ *e++ = strlen(ptr);
+ while (*ptr)
+ *e++ = *ptr++;
+ }
+ return e;
+}
+u8 *dhcp_vendorex_proc(u8 *popt)
+{
+ return NULL;
+}
+/* ------------------------------------------------------------------------- */
+
+/*
+ * Initialize PCI Devices
+ */
+#ifdef CONFIG_PCI
+void pci_mvblue_clear_base( struct pci_controller *hose, pci_dev_t dev )
+{
+ u32 cnt;
+ printf("clear base @ dev/func 0x%02x/0x%02x ... ", PCI_DEV(dev), PCI_FUNC(dev) );
+ for( cnt = 0; cnt < 6; cnt++ )
+ pci_hose_write_config_dword( hose, dev, 0x10 + (4*cnt), 0x0 );
+ printf("done\n");
+}
+
+void duart_setup( u32 base, u16 divisor )
+{
+ printf("duart setup ...");
+ out_8( (u8*)( CFG_ISA_IO+base+3), 0x80);
+ out_8( (u8*)( CFG_ISA_IO+base+0), divisor & 0xff);
+ out_8( (u8*)( CFG_ISA_IO+base+1), divisor >> 8 );
+ out_8( (u8*)( CFG_ISA_IO+base+3), 0x03);
+ out_8( (u8*)( CFG_ISA_IO+base+4), 0x03);
+ out_8( (u8*)( CFG_ISA_IO+base+2), 0x07);
+ printf("done\n");
+}
+
+void pci_mvblue_fixup_irq_behind_bridge( struct pci_controller *hose, pci_dev_t bridge, unsigned char irq)
+{
+ pci_dev_t d;
+ unsigned char bus;
+ unsigned short vendor,
+ class;
+
+ pci_hose_read_config_byte( hose, bridge, PCI_SECONDARY_BUS, &bus );
+ for (d = PCI_BDF(bus,0,0);
+ d < PCI_BDF(bus,PCI_MAX_PCI_DEVICES-1,PCI_MAX_PCI_FUNCTIONS-1);
+ d += PCI_BDF(0,0,1))
+ {
+ pci_hose_read_config_word(hose, d, PCI_VENDOR_ID, &vendor);
+ if (vendor != 0xffff && vendor != 0x0000)
+ {
+ pci_hose_read_config_word( hose, d, PCI_CLASS_DEVICE, &class );
+ if ( class == PCI_CLASS_BRIDGE_PCI )
+ pci_mvblue_fixup_irq_behind_bridge( hose, d, irq );
+ else
+ pci_hose_write_config_byte( hose, d, PCI_INTERRUPT_LINE, irq );
+ }
+ }
+}
+
+#define MV_MAX_PCI_BUSSES 3
+#define SLOT0_IRQ 3
+#define SLOT1_IRQ 4
+void pci_mvblue_fixup_irq(struct pci_controller *hose, pci_dev_t dev)
+{
+ unsigned char line=0xff;
+ unsigned short class;
+
+ if( PCI_BUS(dev) == 0 ) {
+ switch(PCI_DEV(dev)) {
+ case 0xd:
+ if ( get_BoardType() == 0 ) {
+ line = 1;
+ } else
+ /* mvBL */
+ line = 2;
+ break;
+ case 0xe:
+ /* mvBB: IDE */
+ line = 2;
+ pci_hose_write_config_byte(hose, dev, 0x8a, 0x20 );
+ break;
+ case 0xf:
+ /* mvBB: Slot0 (Grabber) */
+ pci_hose_read_config_word( hose, dev, PCI_CLASS_DEVICE, &class );
+ if ( class == PCI_CLASS_BRIDGE_PCI ) {
+ pci_mvblue_fixup_irq_behind_bridge( hose, dev, SLOT0_IRQ );
+ line = 0xff;
+ } else
+ line = SLOT0_IRQ;
+ break;
+ case 0x10:
+ /* mvBB: Slot1 */
+ pci_hose_read_config_word( hose, dev, PCI_CLASS_DEVICE, &class );
+ if ( class == PCI_CLASS_BRIDGE_PCI ) {
+ pci_mvblue_fixup_irq_behind_bridge( hose, dev, SLOT1_IRQ );
+ line = 0xff;
+ } else
+ line = SLOT1_IRQ;
+ break;
+ default:
+ printf("***pci_scan: illegal dev = 0x%08x\n", PCI_DEV(dev) );
+ line = 0xff;
+ break;
+ }
+ pci_hose_write_config_byte(hose, dev, PCI_INTERRUPT_LINE, line );
+ }
+}
+
+struct pci_controller hose = {
+ fixup_irq: pci_mvblue_fixup_irq
+};
+
+void pci_init_board(void)
+{
+ pci_mpc824x_init(&hose);
+}
+#endif