/*
* Read a value from configuration space
*/
static int octeon_read_config(struct pci_bus *bus, unsigned int devfn,
int reg, int size, u32 *val)
{
union octeon_pci_address pci_addr;
pci_addr.u64 = 0;
pci_addr.s.upper = 2;
pci_addr.s.io = 1;
pci_addr.s.did = 3;
pci_addr.s.subdid = 1;
pci_addr.s.endian_swap = 1;
pci_addr.s.bus = bus->number;
pci_addr.s.dev = devfn >> 3;
pci_addr.s.func = devfn & 0x7;
pci_addr.s.reg = reg;
#if PCI_CONFIG_SPACE_DELAY
udelay(PCI_CONFIG_SPACE_DELAY);
#endif
switch (size) {
case 4:
*val = le32_to_cpu(cvmx_read64_uint32(pci_addr.u64));
return PCIBIOS_SUCCESSFUL;
case 2:
*val = le16_to_cpu(cvmx_read64_uint16(pci_addr.u64));
return PCIBIOS_SUCCESSFUL;
case 1:
*val = cvmx_read64_uint8(pci_addr.u64);
return PCIBIOS_SUCCESSFUL;
}
return PCIBIOS_FUNC_NOT_SUPPORTED;
}
static uint32_t
octopci_read_config(device_t dev, u_int bus, u_int slot, u_int func, u_int reg,
int bytes)
{
struct octopci_softc *sc;
uint64_t addr;
uint32_t data;
sc = device_get_softc(dev);
addr = octopci_cs_addr(bus, slot, func, reg);
switch (bytes) {
case 4:
data = le32toh(cvmx_read64_uint32(addr));
return (data);
case 2:
data = le16toh(cvmx_read64_uint16(addr));
return (data);
case 1:
data = cvmx_read64_uint8(addr);
return (data);
default:
return ((uint32_t)-1);
}
}
void ehci_writel(volatile u32 *addr32, u32 val)
{
u64 addr64 = 0x80016F0000000000ull + (ulong)addr32;
u32 val2 = 0;
cvmx_write64_uint32(addr64, val);
val2 = cvmx_read64_uint32(addr64);
debug("%s: wrote 0x%08x to address %p (0x%llx), read back 0x%08x\n",
__func__, val, addr32, addr64, val2);
}
/**
* Read 32bits from a Device's config space
*
* @pcie_port: PCIe port the device is on
* @bus: Sub bus
* @dev: Device ID
* @fn: Device sub function
* @reg: Register to access
*
* Returns Result of the read
*/
static uint32_t cvmx_pcie_config_read32(int pcie_port, int bus, int dev,
int fn, int reg)
{
uint64_t address =
__cvmx_pcie_build_config_addr(pcie_port, bus, dev, fn, reg);
if (address)
return le32_to_cpu(cvmx_read64_uint32(address));
else
return 0xffffffff;
}
u32 ehci_readl(volatile u32 *addr32)
{
u64 addr64 = 0x80016F0000000000ull + (ulong)addr32;
u32 val;
val = cvmx_read64_uint32(addr64);
debug("%s: read 0x%08x from address %p (0x%llx)\n",
__func__, val, addr32, addr64);
return val;
}
int do_read64l(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
{
uint64_t addr;
uint32_t val;
if ((argc != 2)) {
printf("Usage:\n%s\n", cmdtp->usage);
return 1;
}
addr = simple_strtoull(argv[1], NULL, 16);
addr += base_address64;
printf("attempting to read from addr: 0x%llx\n", addr);
val = cvmx_read64_uint32(addr);
printf("0x%llx: 0x%x\n", addr, val);
return (0);
}
int print_buffer64(uint64_t addr, uint64_t data, uint width, uint count,
int swap, uint linelen)
{
/* linebuf as a union causes proper alignment */
union linebuf {
uint64_t ud[MAX_LINE_LENGTH_BYTES/sizeof(uint64_t) + 1];
uint32_t ui[MAX_LINE_LENGTH_BYTES/sizeof(uint32_t) + 1];
uint16_t us[MAX_LINE_LENGTH_BYTES/sizeof(uint16_t) + 1];
uint8_t uc[MAX_LINE_LENGTH_BYTES/sizeof(uint8_t) + 1];
} lb;
int i;
if (linelen*width > MAX_LINE_LENGTH_BYTES)
linelen = MAX_LINE_LENGTH_BYTES / width;
if (linelen < 1)
linelen = DEFAULT_LINE_LENGTH_BYTES / width;
while (count) {
printf("%016llx:", addr);
/* check for overflow condition */
if (count < linelen)
linelen = count;
/* Copy from memory into linebuf and print hex values */
for (i = 0; i < linelen; i++) {
uint64_t x;
if (width == 8) {
x = lb.ud[i] = cvmx_read_csr(data);
if (swap)
x = swab64(x);
} else if (width == 4) {
x = lb.ui[i] = cvmx_read64_uint32(data);
if (swap)
x = swab32(x);
} else if (width == 2) {
x = lb.us[i] = cvmx_read64_uint16(data);
if (swap)
x = swab16(x);
} else {
x = lb.uc[i] = cvmx_read64_int8(data);
}
printf(" %0*llx", width * 2, x);
data += width;
}
/* Print data in ASCII characters */
for (i = 0; i < linelen * width; i++) {
if (!isprint(lb.uc[i]) || lb.uc[i] >= 0x80)
lb.uc[i] = '.';
}
lb.uc[i] = '\0';
printf(" %s\n", lb.uc);
/* update references */
addr += linelen * width;
count -= linelen;
if (ctrlc())
return -1;
}
return 0;
}
int do_mem_loop64(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
uint64_t addr, length, i, dummy;
int size;
if (argc < 3)
return CMD_RET_USAGE;
/* Check for a size spefication.
* Defaults to long if no or incorrect specification.
*/
if ((size = cmd_get_data_size(argv[0], 8)) < 0)
return 1;
/* Address is always specified.
*/
addr = simple_strtoull(argv[1], NULL, 16);
/* Length is the number of objects, not number of bytes.
*/
length = simple_strtoull(argv[2], NULL, 16);
/* We want to optimize the loops to run as fast as possible.
* If we have only one object, just run infinite loops.
*/
if (length == 1) {
if (size == 8) {
for (;;)
i = cvmx_read_csr(addr);
} else if (size == 4) {
for (;;)
i = cvmx_read64_uint32(addr);
}
if (size == 2) {
for (;;)
i = cvmx_read64_uint16(addr);
}
for (;;)
i = cvmx_read64_uint8(addr);
}
if (size == 8) {
for (;;) {
dummy = addr;
i = length;
while (i-- > 0)
cvmx_write_csr(dummy, cvmx_read_csr(dummy) + 1);
}
} else if (size == 4) {
for (;;) {
dummy = addr;
i = length;
while (i-- > 0)
cvmx_write64_uint32(dummy,
cvmx_read64_uint32(dummy) + 1);
}
}
if (size == 2) {
for (;;) {
dummy = addr;
i = length;
while (i-- > 0)
cvmx_write64_uint16(dummy,
cvmx_read64_uint16(dummy) + 1);
}
}
for (;;) {
dummy = addr;
i = length;
while (i-- > 0)
cvmx_write64_uint8(dummy, cvmx_read64_uint8(dummy) + 1);
}
return -1;
}
int do_mem_cp64 ( cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
uint64_t addr, dest, count;
int size;
if (argc != 4)
return CMD_RET_USAGE;
/* Check for size specification.
*/
if ((size = cmd_get_data_size(argv[0], 8)) < 0)
return 1;
addr = simple_strtoull(argv[1], NULL, 16);
addr |= base_address64;
dest = simple_strtoull(argv[2], NULL, 16);
dest |= base_address64;
count = simple_strtoull(argv[3], NULL, 16);
if (count == 0) {
puts ("Zero length ???\n");
return 1;
}
#ifndef CONFIG_SYS_NO_FLASH
/* check if we are copying to Flash */
if ( (dest < 0xc0000000 && addr2info(dest) != NULL)
#ifdef CONFIG_HAS_DATAFLASH
&& (!addr_dataflash(dest))
#endif
) {
int rc;
if (addr + count >= 0x100000000ull) {
puts("Source address too high to copy to flash\n");
return 1;
}
puts ("Copy to Flash... ");
rc = flash_write ((char *)((uint32_t)addr), (uint32_t)dest,
count * size);
if (rc != 0) {
flash_perror (rc);
return (1);
}
puts ("done\n");
return 0;
}
#endif
#ifdef CONFIG_HAS_DATAFLASH
/* Check if we are copying from RAM or Flash to DataFlash */
if ((dest < 0xc0000000) &&
addr_dataflash((uint32_t)dest) && !addr_dataflash((uint32_t)addr)) {
int rc;
if (addr + count >= 0x100000000ull) {
puts("Source address is too high to copy to flash\n");
return 1;
}
puts ("Copy to DataFlash... ");
rc = write_dataflash (dest, addr, count*size);
if (rc != 1) {
dataflash_perror (rc);
return (1);
}
puts ("done\n");
return 0;
}
/* Check if we are copying from DataFlash to RAM */
if ((addr < 0xc0000000) && addr_dataflash((uint32_t)addr) &&
(dest + count < 0x100000000ull) && !addr_dataflash((uint32_t)dest)
#ifndef CONFIG_SYS_NO_FLASH
&& (addr2info((uint32_t)dest) == NULL)
#endif
) {
int rc;
rc = read_dataflash((uint32_t)addr, count * size,
(char *)((uint32_t)dest));
if (rc != 1) {
dataflash_perror (rc);
return (1);
}
return 0;
}
if ((addr | dest) < 0x10000000ull &&
addr_dataflash(addr) && addr_dataflash(dest)) {
puts ("Unsupported combination of source/destination.\n\r");
return 1;
}
#endif
while (count-- > 0) {
if (size == 8)
cvmx_write_csr(dest, cvmx_read_csr(addr));
else if (size == 4)
cvmx_write64_uint32(dest, cvmx_read64_uint32(addr));
else if (size == 2)
cvmx_write64_uint16(dest, cvmx_read64_uint16(addr));
else
cvmx_write64_uint8(dest, cvmx_read64_uint8(addr));
addr += size;
dest += size;
/* reset watchdog from time to time */
if ((count % (64 << 10)) == 0)
WATCHDOG_RESET();
}
return 0;
}
int do_mem_cmp64 (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
uint64_t addr1, addr2, count, ngood;
int size;
int rcode = 0;
const char *type;
if (argc != 4)
return CMD_RET_USAGE;
/* Check for size specification.
*/
if ((size = cmd_get_data_size(argv[0], 8)) < 0)
return 1;
type = size == 8 ? "dword" : size == 4 ? "word" : size == 2 ?
"halfword" : "byte";
addr1 = simple_strtoull(argv[1], NULL, 16);
addr1 |= base_address64;
addr2 = simple_strtoull(argv[2], NULL, 16);
addr2 |= base_address64;
count = simple_strtoull(argv[3], NULL, 16);
#ifdef CONFIG_HAS_DATAFLASH
if (addr_dataflash(addr1) | addr_dataflash(addr2)) {
puts ("Comparison with DataFlash space not supported.\n\r");
return 0;
}
#endif
for (ngood = 0; ngood < count; ++ngood) {
uint64_t word1, word2;
if (size == 8) {
word1 = cvmx_read_csr(addr1);
word2 = cvmx_read_csr(addr2);
} else if (size == 4) {
word1 = cvmx_read64_uint32(addr1);
word2 = cvmx_read64_uint32(addr2);
} else if (size == 2) {
word1 = cvmx_read64_uint16(addr1);
word2 = cvmx_read64_uint16(addr2);
} else {
word1 = cvmx_read64_uint8(addr1);
word2 = cvmx_read64_uint8(addr2);
}
if (word1 != word2) {
printf("%s at 0x%016llx (%#0*llx) != %s at 0x%16llx (%#0*llx)\n",
type, addr1, size, word1,
type, addr2, size, word2);
rcode = 1;
break;
}
addr1 += size;
addr2 += size;
/* reset watchdog from time to time */
if ((ngood % (64 << 10)) == 0)
WATCHDOG_RESET();
}
printf("Total of %llu %s(s) were the same\n", ngood, type);
return rcode;
}
/**
* @INTERNAL
* Read a USB 32bit CSR. It performs the necessary address swizzle for 32bit
* CSRs.
*
* @param usb USB device state populated by
* cvmx_usbd_initialize().
* @param address 64bit address to read
*
* @return Result of the read
*/
static inline uint32_t __cvmx_usbd_read_csr32(cvmx_usbd_state_t *usb, uint64_t address)
{
uint32_t result = cvmx_read64_uint32(address ^ 4);
return result;
}