of: earlycon: Move address translation to of_setup_earlycon()
Cleanup the early DT/earlycon separation; remove the 'addr' parameter
from of_setup_earlycon() and get the uart phys addr directly with a
new wrapper function, of_flat_dt_translate_addr(). Limit
fdt_translate_address() to file scope.
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/drivers/tty/serial/earlycon.c b/drivers/tty/serial/earlycon.c
index 7089667..baee9ad 100644
--- a/drivers/tty/serial/earlycon.c
+++ b/drivers/tty/serial/earlycon.c
@@ -19,6 +19,7 @@
#include <linux/io.h>
#include <linux/serial_core.h>
#include <linux/sizes.h>
+#include <linux/of.h>
#include <linux/of_fdt.h>
#ifdef CONFIG_FIX_EARLYCON_MEM
@@ -218,8 +219,7 @@
#ifdef CONFIG_OF_EARLY_FLATTREE
-int __init of_setup_earlycon(unsigned long addr,
- const struct earlycon_id *match,
+int __init of_setup_earlycon(const struct earlycon_id *match,
unsigned long node,
const char *options)
{
@@ -227,12 +227,18 @@
struct uart_port *port = &early_console_dev.port;
const __be32 *val;
bool big_endian;
+ u64 addr;
spin_lock_init(&port->lock);
port->iotype = UPIO_MEM;
+ addr = of_flat_dt_translate_address(node);
+ if (addr == OF_BAD_ADDR) {
+ pr_warn("[%s] bad address\n", match->name);
+ return -ENXIO;
+ }
port->mapbase = addr;
port->uartclk = BASE_BAUD * 16;
- port->membase = earlycon_map(addr, SZ_4K);
+ port->membase = earlycon_map(port->mapbase, SZ_4K);
val = of_get_flat_dt_prop(node, "reg-offset", NULL);
if (val)