static __init void ja_pci1_init(void)
{
uint32_t mem0_base, mem0_size;
uint32_t io_base, io_size;
io_base = MV_READ(MV64340_PCI_1_IO_BASE_ADDR) << 16;
io_size = (MV_READ(MV64340_PCI_1_IO_SIZE) + 1) << 16;
mem0_base = MV_READ(MV64340_PCI_1_MEMORY0_BASE_ADDR) << 16;
mem0_size = (MV_READ(MV64340_PCI_1_MEMORY0_SIZE) + 1) << 16;
/*
* Here we assume the I/O window of second bus to be contiguous with
* the first. A gap is no problem but would waste address space for
* remapping the port space.
*/
mv_pci_io_mem1_resource.start = mv_io_size;
mv_pci_io_mem1_resource.end = mv_io_size + io_size - 1;
mv_pci_mem1_resource.start = mem0_base;
mv_pci_mem1_resource.end = mem0_base + mem0_size - 1;
mv_bus1_controller.pcic.mem_offset = mem0_base;
mv_bus1_controller.pcic.io_offset = 0;
ioport_resource.end = io_base + io_size -mv_io_base - 1;
register_pci_controller(&mv_bus1_controller.pcic);
mv_io_size = io_base + io_size - mv_io_base;
}
int
mveth_init(struct mv64340_private *mp)
{
int i;
mp->p_rx_desc_area = rx_ring;
mp->p_tx_desc_area = tx_ring;
rx_stopq(mp->port_num);
tx_stopq(mp->port_num);
/* MotLoad has cache snooping disabled on the ENET2MEM windows.
* Some comments in (linux) indicate that there are errata
* which cause problems which is a real bummer.
* We try it anyways...
*/
{
unsigned long disbl, bar;
disbl = MV_READ(MV64340_ETH_BASE_ADDR_ENABLE_REG);
/* disable all 6 windows */
MV_WRITE(MV64340_ETH_BASE_ADDR_ENABLE_REG, 0x3f);
/* set WB snooping */
for ( i=0; i<6*8; i+=8 ) {
if ( (bar = MV_READ(MV64340_ETH_BAR_0 + i)) && MV_READ(MV64340_ETH_SIZE_REG_0 + i) ) {
MV_WRITE(MV64340_ETH_BAR_0 + i, bar | MV64360_ENET2MEM_SNOOP_WB);
/* read back to flush fifo [linux comment] */
(void)MV_READ(MV64340_ETH_BAR_0 + i);
}
}
/* restore/re-enable */
MV_WRITE(MV64340_ETH_BASE_ADDR_ENABLE_REG, disbl);
}
eth_port_init(mp);
sleep(1);
mveth_init_tx_desc_ring(mp);
mveth_init_rx_desc_ring(mp);
#if 0
for ( i = 0; i<MV64340_RX_QUEUE_SIZE; i++ ) {
p0.byte_cnt = sizeof(rx_buf[0]);
p0.buf_ptr = (dma_addr_t)rx_buf[i];
p0.return_info = (void*)i;
/* other fields are not used by ll driver */
assert ( ETH_OK == eth_rx_return_buff(mp,&p0) );
}
memset(&p0, 0, sizeof(p0));
#endif
return eth_port_start(mp);
}
/* unmask an interrupt -- 1 is enable, 0 is disable */
static inline void unmask_mv64340_irq(unsigned int irq)
{
uint32_t value;
if (irq < (irq_base + 32)) {
value = MV_READ(MV64340_INTERRUPT0_MASK_0_LOW);
value |= 1 << (irq - irq_base);
MV_WRITE(MV64340_INTERRUPT0_MASK_0_LOW, value);
} else {
value = MV_READ(MV64340_INTERRUPT0_MASK_0_HIGH);
value |= 1 << (irq - (irq_base - 32));
MV_WRITE(MV64340_INTERRUPT0_MASK_0_HIGH, value);
}
}
static int Enable_SRAM(void)
{
u32 ALong;
if (mv643xx_reg_base == NULL)
mv643xx_reg_base = ioremap(PEGASOS2_MARVELL_REGBASE,
PEGASOS2_MARVELL_REGSIZE);
if (mv643xx_reg_base == NULL)
return -ENOMEM;
#ifdef BE_VERBOSE
printk("Pegasos II/Marvell MV64361: register remapped from %p to %p\n",
(void *)PEGASOS2_MARVELL_REGBASE, (void *)mv643xx_reg_base);
#endif
MV_WRITE(MV64340_SRAM_CONFIG, 0);
MV_WRITE(MV64340_INTEGRATED_SRAM_BASE_ADDR, PEGASOS2_SRAM_BASE >> 16);
MV_READ(MV64340_BASE_ADDR_ENABLE, ALong);
ALong &= ~(1 << 19);
MV_WRITE(MV64340_BASE_ADDR_ENABLE, ALong);
ALong = 0x02;
ALong |= PEGASOS2_SRAM_BASE & 0xffff0000;
MV_WRITE(MV643XX_ETH_BAR_4, ALong);
MV_WRITE(MV643XX_ETH_SIZE_REG_4, (PEGASOS2_SRAM_SIZE-1) & 0xffff0000);
MV_READ(MV643XX_ETH_BASE_ADDR_ENABLE_REG, ALong);
ALong &= ~(1 << 4);
MV_WRITE(MV643XX_ETH_BASE_ADDR_ENABLE_REG, ALong);
#ifdef BE_VERBOSE
printk("Pegasos II/Marvell MV64361: register unmapped\n");
printk("Pegasos II/Marvell MV64361: SRAM at %p, size=%x\n", (void*) PEGASOS2_SRAM_BASE, PEGASOS2_SRAM_SIZE);
#endif
iounmap(mv643xx_reg_base);
mv643xx_reg_base = NULL;
return 1;
}
/*
* Interrupt handler for interrupts coming from the Marvell chip.
* It could be built in ethernet ports etc...
*/
void ll_mv64340_irq(struct pt_regs *regs)
{
unsigned int irq_src_low, irq_src_high;
unsigned int irq_mask_low, irq_mask_high;
/* read the interrupt status registers */
irq_mask_low = MV_READ(MV64340_INTERRUPT0_MASK_0_LOW);
irq_mask_high = MV_READ(MV64340_INTERRUPT0_MASK_0_HIGH);
irq_src_low = MV_READ(MV64340_MAIN_INTERRUPT_CAUSE_LOW);
irq_src_high = MV_READ(MV64340_MAIN_INTERRUPT_CAUSE_HIGH);
/* mask for just the interrupts we want */
irq_src_low &= irq_mask_low;
irq_src_high &= irq_mask_high;
if (irq_src_low)
do_IRQ(ls1bit32(irq_src_low) + irq_base, regs);
else
do_IRQ(ls1bit32(irq_src_high) + irq_base + 32, regs);
}
static int config_access(unsigned char access_type, struct pci_bus *bus,
unsigned int devfn, unsigned char where,
u32 * data)
{
unsigned int slot = PCI_SLOT(devfn);
u8 func = PCI_FUNC(devfn);
uint32_t address_reg, data_reg;
unsigned int address;
address_reg = RALINK_PCI_CONFIG_ADDR;
data_reg = RALINK_PCI_CONFIG_DATA_VIRTUAL_REG;
/* Setup address */
#if defined(CONFIG_RALINK_RT3883)
address = (bus->number << 16) | (slot << 11) | (func << 8) | (where & 0xfc) | 0x80000000;
#elif defined(CONFIG_RALINK_RT6855)
address = (bus->number << 16) | (slot << 11) | (func << 8) | (where & 0xfc) | 0x80000000;
#elif defined(CONFIG_RALINK_MT7620)
address = (bus->number << 16) | (slot << 11) | (func << 8) | (where & 0xfc) | 0x80000000;
#else
address = (bus->number << 16) | (slot << 11) | (func << 8) | (where& 0xfc) | 0x80000000;
#endif
/* start the configuration cycle */
MV_WRITE(address_reg, address);
switch(access_type) {
case PCI_ACCESS_WRITE_1:
MV_WRITE_8(data_reg+(where&0x3), *data);
break;
case PCI_ACCESS_WRITE_2:
MV_WRITE_16(data_reg+(where&0x3), *data);
break;
case PCI_ACCESS_WRITE_4:
MV_WRITE(data_reg, *data);
break;
case PCI_ACCESS_READ_1:
MV_READ_8( data_reg+(where&0x3), data);
break;
case PCI_ACCESS_READ_2:
MV_READ_16(data_reg+(where&0x3), data);
break;
case PCI_ACCESS_READ_4:
MV_READ(data_reg, data);
break;
default:
printk("no specify access type\n");
break;
}
return 0;
}
static void ja_pci0_init(void)
{
uint32_t mem0_base, mem0_size;
uint32_t io_base, io_size;
io_base = MV_READ(MV64340_PCI_0_IO_BASE_ADDR) << 16;
io_size = (MV_READ(MV64340_PCI_0_IO_SIZE) + 1) << 16;
mem0_base = MV_READ(MV64340_PCI_0_MEMORY0_BASE_ADDR) << 16;
mem0_size = (MV_READ(MV64340_PCI_0_MEMORY0_SIZE) + 1) << 16;
mv_pci_io_mem0_resource.start = 0;
mv_pci_io_mem0_resource.end = io_size - 1;
mv_pci_mem0_resource.start = mem0_base;
mv_pci_mem0_resource.end = mem0_base + mem0_size - 1;
mv_bus0_controller.pcic.mem_offset = mem0_base;
mv_bus0_controller.pcic.io_offset = 0;
ioport_resource.end = io_size - 1;
register_pci_controller(&mv_bus0_controller.pcic);
mv_io_base = io_base;
mv_io_size = io_size;
}
/*
* Flush the Address Translation Unit (ATU).
*/
static void
mvphy_flushatu(struct mii_softc *sc)
{
uint16_t status;
int i;
/* wait for any previous request to complete */
/* XXX if busy defer to tick */
/* XXX timeout */
for (i = 0; i < 1000; i++) {
status = MV_READ(sc, MII_MV_SWITCH_GLOBAL_ADDR,
MV_ATU_OPERATION);
if (MV_ATU_IS_BUSY(status))
break;
}
if (i != 1000) {
MV_WRITE(sc, MII_MV_SWITCH_GLOBAL_ADDR, MV_ATU_OPERATION,
MV_ATU_OP_FLUSH_ALL | MV_ATU_BUSY);
} /*else
aprint_error_dev(sc->mii_dev, "timeout waiting for ATU flush\n");*/
}
void __inline__ read_config(unsigned long bus, unsigned long dev, unsigned long func, unsigned long reg, unsigned long *val)
{
unsigned long address_reg, data_reg, address;
address_reg = RALINK_PCI_CONFIG_ADDR;
data_reg = RALINK_PCI_CONFIG_DATA_VIRTUAL_REG;
/* set addr */
#if defined(CONFIG_RALINK_RT3883)
address = (bus << 16) | (dev << 11) | (func << 8) | (reg& 0xfc) | 0x80000000 ;
#elif defined(CONFIG_RALINK_RT6855)
address = (bus << 16) | (dev << 11) | (func << 8) | (reg& 0xfc) | 0x80000000 ;
#elif defined(CONFIG_RALINK_MT7620)
address = (bus << 16) | (dev << 11) | (func << 8) | (reg& 0xfc) | 0x80000000 ;
#else
address = (bus << 16) | (dev << 11) | (func << 8) | (reg & 0xfc) | 0x80000000 ;
#endif
/* start the configuration cycle */
MV_WRITE(address_reg, address);
/* read the data */
MV_READ(data_reg, val);
return;
}
void __init plat_setup(void)
{
unsigned int tmpword;
board_time_init = momenco_time_init;
_machine_restart = momenco_jaguar_restart;
_machine_halt = momenco_jaguar_halt;
_machine_power_off = momenco_jaguar_power_off;
/*
* initrd_start = (ulong)jaguar_initrd_start;
* initrd_end = (ulong)jaguar_initrd_start + (ulong)jaguar_initrd_size;
* initrd_below_start_ok = 1;
*/
wire_stupidity_into_tlb();
/*
* shut down ethernet ports, just to be sure our memory doesn't get
* corrupted by random ethernet traffic.
*/
MV_WRITE(MV64340_ETH_TRANSMIT_QUEUE_COMMAND_REG(0), 0xff << 8);
MV_WRITE(MV64340_ETH_TRANSMIT_QUEUE_COMMAND_REG(1), 0xff << 8);
MV_WRITE(MV64340_ETH_TRANSMIT_QUEUE_COMMAND_REG(2), 0xff << 8);
MV_WRITE(MV64340_ETH_RECEIVE_QUEUE_COMMAND_REG(0), 0xff << 8);
MV_WRITE(MV64340_ETH_RECEIVE_QUEUE_COMMAND_REG(1), 0xff << 8);
MV_WRITE(MV64340_ETH_RECEIVE_QUEUE_COMMAND_REG(2), 0xff << 8);
while (MV_READ(MV64340_ETH_RECEIVE_QUEUE_COMMAND_REG(0)) & 0xff);
while (MV_READ(MV64340_ETH_RECEIVE_QUEUE_COMMAND_REG(1)) & 0xff);
while (MV_READ(MV64340_ETH_RECEIVE_QUEUE_COMMAND_REG(2)) & 0xff);
while (MV_READ(MV64340_ETH_TRANSMIT_QUEUE_COMMAND_REG(0)) & 0xff);
while (MV_READ(MV64340_ETH_TRANSMIT_QUEUE_COMMAND_REG(1)) & 0xff);
while (MV_READ(MV64340_ETH_TRANSMIT_QUEUE_COMMAND_REG(2)) & 0xff);
MV_WRITE(MV64340_ETH_PORT_SERIAL_CONTROL_REG(0),
MV_READ(MV64340_ETH_PORT_SERIAL_CONTROL_REG(0)) & ~1);
MV_WRITE(MV64340_ETH_PORT_SERIAL_CONTROL_REG(1),
MV_READ(MV64340_ETH_PORT_SERIAL_CONTROL_REG(1)) & ~1);
MV_WRITE(MV64340_ETH_PORT_SERIAL_CONTROL_REG(2),
MV_READ(MV64340_ETH_PORT_SERIAL_CONTROL_REG(2)) & ~1);
/* Turn off the Bit-Error LED */
JAGUAR_FPGA_WRITE(0x80, CLR);
tmpword = JAGUAR_FPGA_READ(BOARDREV);
if (tmpword < 26)
printk("Momentum Jaguar-ATX: Board Assembly Rev. %c\n",
'A'+tmpword);
else
printk("Momentum Jaguar-ATX: Board Assembly Revision #0x%x\n",
tmpword);
tmpword = JAGUAR_FPGA_READ(FPGA_REV);
printk("FPGA Rev: %d.%d\n", tmpword>>4, tmpword&15);
tmpword = JAGUAR_FPGA_READ(RESET_STATUS);
printk("Reset reason: 0x%x\n", tmpword);
switch (tmpword) {
case 0x1:
printk(" - Power-up reset\n");
break;
case 0x2:
printk(" - Push-button reset\n");
break;
case 0x8:
printk(" - Watchdog reset\n");
break;
case 0x10:
printk(" - JTAG reset\n");
break;
default:
printk(" - Unknown reset cause\n");
}
reset_reason = tmpword;
JAGUAR_FPGA_WRITE(0xff, RESET_STATUS);
tmpword = JAGUAR_FPGA_READ(BOARD_STATUS);
printk("Board Status register: 0x%02x\n", tmpword);
printk(" - User jumper: %s\n", (tmpword & 0x80)?"installed":"absent");
printk(" - Boot flash write jumper: %s\n", (tmpword&0x40)?"installed":"absent");
/* 256MiB of RM9000x2 DDR */
// add_memory_region(0x0, 0x100<<20, BOOT_MEM_RAM);
/* 128MiB of MV-64340 DDR */
// add_memory_region(0x100<<20, 0x80<<20, BOOT_MEM_RAM);
/* XXX Memory configuration should be picked up from PMON2k */
#ifdef CONFIG_JAGUAR_DMALOW
printk("Jaguar ATX DMA-low mode set\n");
add_memory_region(0x00000000, 0x08000000, BOOT_MEM_RAM);
add_memory_region(0x08000000, 0x10000000, BOOT_MEM_RAM);
#else
/* 128MiB of MV-64340 DDR RAM */
printk("Jaguar ATX DMA-low mode is not set\n");
add_memory_region(0x100<<20, 0x80<<20, BOOT_MEM_RAM);
#endif
#ifdef GEMDEBUG_TRACEBUFFER
{
unsigned int tbControl;
tbControl =
0 << 26 | /* post trigger delay 0 */
0x2 << 16 | /* sequential trace mode */
// 0x0 << 16 | /* non-sequential trace mode */
// 0xf << 4 | /* watchpoints disabled */
2 << 2 | /* armed */
2 ; /* interrupt disabled */
printk ("setting tbControl = %08lx\n", tbControl);
write_32bit_cp0_set1_register($22, tbControl);
__asm__ __volatile__(".set noreorder\n\t" \
"nop; nop; nop; nop; nop; nop;\n\t" \
"nop; nop; nop; nop; nop; nop;\n\t" \
".set reorder\n\t");
}
#endif
}
void __init plat_setup(void)
{
unsigned int tmpword;
board_time_init = momenco_time_init;
_machine_restart = momenco_ocelot_restart;
_machine_halt = momenco_ocelot_halt;
pm_power_off = momenco_ocelot_power_off;
/* Wired TLB entries */
setup_wired_tlb_entries();
/* shut down ethernet ports, just to be sure our memory doesn't get
* corrupted by random ethernet traffic.
*/
MV_WRITE(MV64340_ETH_TRANSMIT_QUEUE_COMMAND_REG(0), 0xff << 8);
MV_WRITE(MV64340_ETH_TRANSMIT_QUEUE_COMMAND_REG(1), 0xff << 8);
MV_WRITE(MV64340_ETH_RECEIVE_QUEUE_COMMAND_REG(0), 0xff << 8);
MV_WRITE(MV64340_ETH_RECEIVE_QUEUE_COMMAND_REG(1), 0xff << 8);
do {}
while (MV_READ(MV64340_ETH_RECEIVE_QUEUE_COMMAND_REG(0)) & 0xff);
do {}
while (MV_READ(MV64340_ETH_RECEIVE_QUEUE_COMMAND_REG(1)) & 0xff);
do {}
while (MV_READ(MV64340_ETH_TRANSMIT_QUEUE_COMMAND_REG(0)) & 0xff);
do {}
while (MV_READ(MV64340_ETH_TRANSMIT_QUEUE_COMMAND_REG(1)) & 0xff);
MV_WRITE(MV64340_ETH_PORT_SERIAL_CONTROL_REG(0),
MV_READ(MV64340_ETH_PORT_SERIAL_CONTROL_REG(0)) & ~1);
MV_WRITE(MV64340_ETH_PORT_SERIAL_CONTROL_REG(1),
MV_READ(MV64340_ETH_PORT_SERIAL_CONTROL_REG(1)) & ~1);
/* Turn off the Bit-Error LED */
OCELOT_FPGA_WRITE(0x80, CLR);
tmpword = OCELOT_FPGA_READ(BOARDREV);
if (tmpword < 26)
printk("Momenco Ocelot-3: Board Assembly Rev. %c\n",
'A'+tmpword);
else
printk("Momenco Ocelot-3: Board Assembly Revision #0x%x\n",
tmpword);
tmpword = OCELOT_FPGA_READ(FPGA_REV);
printk("FPGA Rev: %d.%d\n", tmpword>>4, tmpword&15);
tmpword = OCELOT_FPGA_READ(RESET_STATUS);
printk("Reset reason: 0x%x\n", tmpword);
switch (tmpword) {
case 0x1:
printk(" - Power-up reset\n");
break;
case 0x2:
printk(" - Push-button reset\n");
break;
case 0x4:
printk(" - cPCI bus reset\n");
break;
case 0x8:
printk(" - Watchdog reset\n");
break;
case 0x10:
printk(" - Software reset\n");
break;
default:
printk(" - Unknown reset cause\n");
}
reset_reason = tmpword;
OCELOT_FPGA_WRITE(0xff, RESET_STATUS);
tmpword = OCELOT_FPGA_READ(CPCI_ID);
printk("cPCI ID register: 0x%02x\n", tmpword);
printk(" - Slot number: %d\n", tmpword & 0x1f);
printk(" - PCI bus present: %s\n", tmpword & 0x40 ? "yes" : "no");
printk(" - System Slot: %s\n", tmpword & 0x20 ? "yes" : "no");
tmpword = OCELOT_FPGA_READ(BOARD_STATUS);
printk("Board Status register: 0x%02x\n", tmpword);
printk(" - User jumper: %s\n", (tmpword & 0x80)?"installed":"absent");
printk(" - Boot flash write jumper: %s\n", (tmpword&0x40)?"installed":"absent");
printk(" - L3 cache size: %d MB\n", (1<<((tmpword&12) >> 2))&~1);
/* Support for 128 MB memory */
add_memory_region(0x0, 0x08000000, BOOT_MEM_RAM);
}
void __init plat_setup(void)
{
unsigned int tmpword;
board_time_init = momenco_time_init;
_machine_restart = momenco_ocelot_restart;
_machine_halt = momenco_ocelot_halt;
_machine_power_off = momenco_ocelot_power_off;
/*
* initrd_start = (ulong)ocelot_initrd_start;
* initrd_end = (ulong)ocelot_initrd_start + (ulong)ocelot_initrd_size;
* initrd_below_start_ok = 1;
*/
/* do handoff reconfiguration */
PMON_v2_setup();
/* shut down ethernet ports, just to be sure our memory doesn't get
* corrupted by random ethernet traffic.
*/
MV_WRITE(MV64340_ETH_TRANSMIT_QUEUE_COMMAND_REG(0), 0xff << 8);
MV_WRITE(MV64340_ETH_TRANSMIT_QUEUE_COMMAND_REG(1), 0xff << 8);
MV_WRITE(MV64340_ETH_RECEIVE_QUEUE_COMMAND_REG(0), 0xff << 8);
MV_WRITE(MV64340_ETH_RECEIVE_QUEUE_COMMAND_REG(1), 0xff << 8);
do {}
while (MV_READ(MV64340_ETH_RECEIVE_QUEUE_COMMAND_REG(0)) & 0xff);
do {}
while (MV_READ(MV64340_ETH_RECEIVE_QUEUE_COMMAND_REG(1)) & 0xff);
do {}
while (MV_READ(MV64340_ETH_TRANSMIT_QUEUE_COMMAND_REG(0)) & 0xff);
do {}
while (MV_READ(MV64340_ETH_TRANSMIT_QUEUE_COMMAND_REG(1)) & 0xff);
MV_WRITE(MV64340_ETH_PORT_SERIAL_CONTROL_REG(0),
MV_READ(MV64340_ETH_PORT_SERIAL_CONTROL_REG(0)) & ~1);
MV_WRITE(MV64340_ETH_PORT_SERIAL_CONTROL_REG(1),
MV_READ(MV64340_ETH_PORT_SERIAL_CONTROL_REG(1)) & ~1);
/* Turn off the Bit-Error LED */
OCELOT_FPGA_WRITE(0x80, CLR);
tmpword = OCELOT_FPGA_READ(BOARDREV);
#ifdef CONFIG_CPU_SR71000
if (tmpword < 26)
printk("Momenco Ocelot-CS: Board Assembly Rev. %c\n",
'A'+tmpword);
else
printk("Momenco Ocelot-CS: Board Assembly Revision #0x%x\n",
tmpword);
#else
if (tmpword < 26)
printk("Momenco Ocelot-C: Board Assembly Rev. %c\n",
'A'+tmpword);
else
printk("Momenco Ocelot-C: Board Assembly Revision #0x%x\n",
tmpword);
#endif
tmpword = OCELOT_FPGA_READ(FPGA_REV);
printk("FPGA Rev: %d.%d\n", tmpword>>4, tmpword&15);
tmpword = OCELOT_FPGA_READ(RESET_STATUS);
printk("Reset reason: 0x%x\n", tmpword);
switch (tmpword) {
case 0x1:
printk(" - Power-up reset\n");
break;
case 0x2:
printk(" - Push-button reset\n");
break;
case 0x4:
printk(" - cPCI bus reset\n");
break;
case 0x8:
printk(" - Watchdog reset\n");
break;
case 0x10:
printk(" - Software reset\n");
break;
default:
printk(" - Unknown reset cause\n");
}
reset_reason = tmpword;
OCELOT_FPGA_WRITE(0xff, RESET_STATUS);
tmpword = OCELOT_FPGA_READ(CPCI_ID);
printk("cPCI ID register: 0x%02x\n", tmpword);
printk(" - Slot number: %d\n", tmpword & 0x1f);
printk(" - PCI bus present: %s\n", tmpword & 0x40 ? "yes" : "no");
printk(" - System Slot: %s\n", tmpword & 0x20 ? "yes" : "no");
tmpword = OCELOT_FPGA_READ(BOARD_STATUS);
printk("Board Status register: 0x%02x\n", tmpword);
printk(" - User jumper: %s\n", (tmpword & 0x80)?"installed":"absent");
printk(" - Boot flash write jumper: %s\n", (tmpword&0x40)?"installed":"absent");
printk(" - L3 Cache size: %d MiB\n", (1<<((tmpword&12) >> 2))&~1);
printk(" - SDRAM size: %d MiB\n", 1<<(6+(tmpword&3)));
switch(tmpword &3) {
case 3:
/* 512MiB */
add_memory_region(0x0, 0x200<<20, BOOT_MEM_RAM);
break;
case 2:
/* 256MiB */
add_memory_region(0x0, 0x100<<20, BOOT_MEM_RAM);
break;
case 1:
/* 128MiB */
add_memory_region(0x0, 0x80<<20, BOOT_MEM_RAM);
break;
case 0:
/* 1GiB -- needs CONFIG_HIGHMEM */
add_memory_region(0x0, 0x400<<20, BOOT_MEM_RAM);
break;
}
}
