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net: gem: Add OF initialization support 

Gem can be directly initialized from DTB.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
This commit is contained in:
Michal Simek 2014-02-24 11:16:30 +01:00 committed by Tom Rini
parent 7450a7f730
commit f88a6869a1
2 changed files with 43 additions and 0 deletions
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42
drivers/net/zynq_gem.c
View File

@ -12,6 +12,8 @@
#include <common.h>
#include <net.h>
#include <config.h>
#include <fdtdec.h>
#include <libfdt.h>
#include <malloc.h>
#include <asm/io.h>
#include <phy.h>
@ -534,3 +536,43 @@ int zynq_gem_initialize(bd_t *bis, int base_addr, int phy_addr, u32 emio)
return 1;
}
#ifdef CONFIG_OF_CONTROL
int zynq_gem_of_init(const void *blob)
{
int offset = 0;
u32 ret = 0;
u32 reg, phy_reg;
debug("ZYNQ GEM: Initialization\n");
do {
offset = fdt_node_offset_by_compatible(blob, offset,
"xlnx,ps7-ethernet-1.00.a");
if (offset != -1) {
reg = fdtdec_get_addr(blob, offset, "reg");
if (reg != FDT_ADDR_T_NONE) {
offset = fdtdec_lookup_phandle(blob, offset,
"phy-handle");
if (offset != -1)
phy_reg = fdtdec_get_addr(blob, offset,
"reg");
else
phy_reg = 0;
debug("ZYNQ GEM: addr %x, phyaddr %x\n",
reg, phy_reg);
ret |= zynq_gem_initialize(NULL, reg,
phy_reg, 0);
} else {
debug("ZYNQ GEM: Can't get base address\n");
return -1;
}
}
} while (offset != -1);
return ret;
}
#endif

1
include/netdev.h
View File

@ -91,6 +91,7 @@ int xilinx_emaclite_initialize(bd_t *bis, unsigned long base_addr,
int txpp, int rxpp);
int xilinx_ll_temac_eth_init(bd_t *bis, unsigned long base_addr, int flags,
unsigned long ctrl_addr);
int zynq_gem_of_init(const void *blob);
int zynq_gem_initialize(bd_t *bis, int base_addr, int phy_addr, u32 emio);
/*
* As long as the Xilinx xps_ll_temac ethernet driver has not its own interface