Hello!
On 05/07/2013 09:08 AM, Nobuhiro Iwamatsu wrote:
Some sh-eth devices may have two ether devices inside.
And the function of TSU is accessed from each ether device.
In this case, sh-eth need to remap address using devm_ioremap(),
without using devm_ioremap_resource().
tsu_shared_reg of sh_eth_cpu_data is used for this control.
Signed-off-by: Nobuhiro Iwamatsu <[email protected]>
---
V2:
- Change variable name from tsu_multi_reg to tsu_shared_reg.
- Update commit message.
drivers/net/ethernet/renesas/sh_eth.c | 11 ++++++++++-
drivers/net/ethernet/renesas/sh_eth.h | 1 +
2 files changed, 11 insertions(+), 1 deletion(-)
diff --git a/drivers/net/ethernet/renesas/sh_eth.c
b/drivers/net/ethernet/renesas/sh_eth.c
index 33dc6f2..489be0e 100644
--- a/drivers/net/ethernet/renesas/sh_eth.c
+++ b/drivers/net/ethernet/renesas/sh_eth.c
[...]
@@ -2750,7 +2754,12 @@ static int sh_eth_drv_probe(struct platform_device *pdev)
ret = -ENODEV;
goto out_release;
}
- mdp->tsu_addr = devm_ioremap_resource(&pdev->dev, rtsu);
+
+ if (mdp->cd->tsu_shared_reg)
+ mdp->tsu_addr = devm_ioremap(&pdev->dev, rtsu->start,
+ resource_size(rtsu));
I now think there's no need for a special flag -- we can just use 'devno'
(at least for the pure platform devices). The DT probing case remains unsolved
though (might make sense to look at the resource #0, whether it has 0x800 set
or not)...
+ else
+ mdp->tsu_addr = devm_ioremap_resource(&pdev->dev, rtsu);
if (IS_ERR(mdp->tsu_addr)) {
ret = PTR_ERR(mdp->tsu_addr);
goto out_release;
MBR, Sergei
