openwrtv3/target/linux/brcm63xx/patches-3.14/378-MIPS-BCM63XX-calculate-labels-for-DT-registered-cont.patch
Jonas Gorski eea227c60d brcm63xx: probe gpio controllers through DT
Add a generic mmio gpio controller based driver and probe it
through device tree.

Use aliases for base calculation until we converted all users to
device tree or named gpios.

Convert bcm63xx_enet's ephy-reset gpio to use a named gpio.

While at it, remove the duplicate reset gpio defintion for livebox.

Signed-off-by: Jonas Gorski <jogo@openwrt.org>

SVN-Revision: 44565
2015-02-27 17:39:49 +00:00

49 lines
1.5 KiB
Diff

From e55892aac9d5508a000647ca66f0e678e02be3bb Mon Sep 17 00:00:00 2001
From: Jonas Gorski <jogo@openwrt.org>
Date: Sat, 21 Feb 2015 17:26:50 +0100
Subject: [PATCH 5/6] MIPS: BCM63XX: calculate labels for DT registered
controllers
Signed-off-by: Jonas Gorski <jogo@openwrt.org>
---
arch/mips/bcm63xx/gpio.c | 16 +++++++++++++---
1 file changed, 13 insertions(+), 3 deletions(-)
diff --git a/arch/mips/bcm63xx/gpio.c b/arch/mips/bcm63xx/gpio.c
index 70cd05b..cf0b819 100644
--- a/arch/mips/bcm63xx/gpio.c
+++ b/arch/mips/bcm63xx/gpio.c
@@ -20,6 +20,8 @@
#include <bcm63xx_gpio.h>
#include <bcm63xx_regs.h>
+#include "boards/board_common.h"
+
/* for registering lookups; make them large enough to hold OF names */
static char *gpio_chip_labels[] = {
"xxxxxxxx.gpio-controller",
@@ -49,9 +51,17 @@ static void __init bcm63xx_gpio_init_one(int id, int dir, int data, int ngpio)
pdata.base = id * 32;
pdata.ngpio = ngpio;
- sprintf(gpio_chip_labels[id], "bcm63xx-gpio.%d", id);
- platform_device_register_resndata(NULL, "bcm63xx-gpio", id, res, 2,
- &pdata, sizeof(pdata));
+ if (board_of_device_present("gpio0")) {
+ unsigned long base = res[0].start;
+
+ if (base < 0xf0000000U)
+ base = CPHYSADDR(base);
+ sprintf(gpio_chip_labels[id], "%lx.gpio-controller", base);
+ } else {
+ sprintf(gpio_chip_labels[id], "bcm63xx-gpio.%d", id);
+ platform_device_register_resndata(NULL, "bcm63xx-gpio", id, res,
+ 2, &pdata, sizeof(pdata));
+ }
}
int __init bcm63xx_gpio_init(void)
--
1.7.10.4