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net: altera_tse: get numbers of fdt address and size cells

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Get numbers of fdt address and size cells in altera_tse_probe(),
thereby remove the assumption of one address cell and one size
cell.

Signed-off-by: Thomas Chou <thomas@wytron.com.tw>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>
This commit is contained in:
Thomas Chou 2015-11-06 09:37:17 +08:00
parent 4c8df1d359
commit 75199d6f72
1 changed files with 8 additions and 6 deletions
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14
drivers/net/altera_tse.c
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@ -409,20 +409,22 @@ static int altera_tse_probe(struct udevice *dev)
{ {
struct eth_pdata *pdata = dev_get_platdata(dev); struct eth_pdata *pdata = dev_get_platdata(dev);
struct altera_tse_priv *priv = dev_get_priv(dev); struct altera_tse_priv *priv = dev_get_priv(dev);
const void *blob = gd->fdt_blob; void *blob = (void *)gd->fdt_blob;
int node = dev->of_offset; int node = dev->of_offset;
const char *list, *end; const char *list, *end;
const fdt32_t *cell; const fdt32_t *cell;
void *base, *desc_mem = NULL; void *base, *desc_mem = NULL;
unsigned long addr, size; unsigned long addr, size;
int parent, addrc, sizec;
int len, idx; int len, idx;
int ret; int ret;
/* /*
* decode regs, assume address-cells and size-cells are both one. * decode regs. there are multiple reg tuples, and they need to
* there are multiple reg tuples, and they need to match with * match with reg-names.
* reg-names.
*/ */
parent = fdt_parent_offset(blob, node);
of_bus_default_count_cells(blob, parent, &addrc, &sizec);
list = fdt_getprop(blob, node, "reg-names", &len); list = fdt_getprop(blob, node, "reg-names", &len);
if (!list) if (!list)
return -ENOENT; return -ENOENT;
@ -434,7 +436,7 @@ static int altera_tse_probe(struct udevice *dev)
while (list < end) { while (list < end) {
addr = fdt_translate_address((void *)blob, addr = fdt_translate_address((void *)blob,
node, cell + idx); node, cell + idx);
size = fdt_addr_to_cpu(cell[idx + 1]); size = fdt_addr_to_cpu(cell[idx + addrc]);
base = ioremap(addr, size); base = ioremap(addr, size);
len = strlen(list); len = strlen(list);
if (strcmp(list, "control_port") == 0) if (strcmp(list, "control_port") == 0)
@ -445,7 +447,7 @@ static int altera_tse_probe(struct udevice *dev)
priv->sgdma_tx = base; priv->sgdma_tx = base;
else if (strcmp(list, "s1") == 0) else if (strcmp(list, "s1") == 0)
desc_mem = base; desc_mem = base;
idx += 2; idx += addrc + sizec;
list += (len + 1); list += (len + 1);
} }
/* decode fifo depth */ /* decode fifo depth */