watchdog: armada_37xx: Convert to official DT bindings
Official DT bindings have only one reg property: watchdog address space.
Convert armada-37xx-wdt.c driver to offical DT bindings and access sel_reg
register via MVEBU_REGISTER() macro, as its value (required by U-Boot
driver) is not in DT yet. In later stage can be driver cleaned to not use
it.
This change would allow U-Boot to use A3720 watchdog DTS structure from
Linux kernel.
Signed-off-by: Pali Rohár <pali@kernel.org>
Reviewed-by: Stefan Roese <sr@denx.de>
diff --git a/drivers/watchdog/armada-37xx-wdt.c b/drivers/watchdog/armada-37xx-wdt.c
index 6b5e1ab..2e119b9 100644
--- a/drivers/watchdog/armada-37xx-wdt.c
+++ b/drivers/watchdog/armada-37xx-wdt.c
@@ -155,12 +155,9 @@
struct a37xx_wdt *priv = dev_get_priv(dev);
fdt_addr_t addr;
- addr = dev_read_addr_index(dev, 0);
- if (addr == FDT_ADDR_T_NONE)
- goto err;
- priv->sel_reg = (void __iomem *)addr;
+ priv->sel_reg = (void __iomem *)MVEBU_REGISTER(0x0d064);
- addr = dev_read_addr_index(dev, 1);
+ addr = dev_read_addr(dev);
if (addr == FDT_ADDR_T_NONE)
goto err;
priv->reg = (void __iomem *)addr;