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bcm53xx: add support for GPIOs

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Signed-off-by: Rafał Miłecki <zajec5@gmail.com>

SVN-Revision: 42638
This commit is contained in:
Rafał Miłecki 2014-09-21 21:18:30 +00:00
parent 2468f9201f
commit 223a309c3c
3 changed files with 72 additions and 0 deletions
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6
target/linux/bcm53xx/config-3.14
View file

@ -21,6 +21,7 @@ CONFIG_ARCH_USE_BUILTIN_BSWAP=y
CONFIG_ARCH_USE_CMPXCHG_LOCKREF=y
CONFIG_ARCH_WANT_GENERAL_HUGETLB=y
CONFIG_ARCH_WANT_IPC_PARSE_VERSION=y
CONFIG_ARCH_WANT_OPTIONAL_GPIOLIB=y
CONFIG_ARM=y
CONFIG_ARM_APPENDED_DTB=y
# CONFIG_ARM_ATAG_DTB_COMPAT is not set
@ -47,6 +48,7 @@ CONFIG_BCMA=y
CONFIG_BCMA_BLOCKIO=y
CONFIG_BCMA_DEBUG=y
CONFIG_BCMA_DRIVER_GMAC_CMN=y
CONFIG_BCMA_DRIVER_GPIO=y
CONFIG_BCMA_HOST_PCI=y
CONFIG_BCMA_HOST_PCI_POSSIBLE=y
CONFIG_BCMA_HOST_SOC=y
@ -105,6 +107,9 @@ CONFIG_GENERIC_SCHED_CLOCK=y
CONFIG_GENERIC_SMP_IDLE_THREAD=y
CONFIG_GENERIC_STRNCPY_FROM_USER=y
CONFIG_GENERIC_STRNLEN_USER=y
CONFIG_GPIOLIB=y
CONFIG_GPIO_DEVRES=y
CONFIG_GPIO_SYSFS=y
CONFIG_HARDIRQS_SW_RESEND=y
CONFIG_HAS_DMA=y
CONFIG_HAS_IOMEM=y
@ -180,6 +185,7 @@ CONFIG_OF=y
CONFIG_OF_ADDRESS=y
CONFIG_OF_EARLY_FLATTREE=y
CONFIG_OF_FLATTREE=y
CONFIG_OF_GPIO=y
CONFIG_OF_IRQ=y
CONFIG_OF_MDIO=y
CONFIG_OF_MTD=y

29
target/linux/bcm53xx/patches-3.14/045-ARM-BCM5301X-select-GPIOLIB-as-optional.patch Normal file
View file

@ -0,0 +1,29 @@
From e7b1065712e769eb4de7b9d4aa222a4531c2b8fd Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <zajec5@gmail.com>
Date: Sat, 20 Sep 2014 18:21:19 +0200
Subject: [PATCH V2] ARM: BCM5301X: select GPIOLIB as optional
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
All routers (or 99% of them) based on BCM5301X use GPIOs to control LEDs
and buttons.
Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
---
V2: Don't select GPIOLIB. We may still think about making it default at
some point, but we dont' really require it to boot successfully.
---
arch/arm/mach-bcm/Kconfig | 1 +
1 file changed, 1 insertion(+)
--- a/arch/arm/mach-bcm/Kconfig
+++ b/arch/arm/mach-bcm/Kconfig
@@ -35,6 +35,7 @@ config ARCH_BCM_MOBILE
config ARCH_BCM_5301X
bool "Broadcom BCM470X / BCM5301X ARM SoC" if ARCH_MULTI_V7
depends on MMU
+ select ARCH_WANT_OPTIONAL_GPIOLIB
select ARM_GIC
select CACHE_L2X0
select HAVE_ARM_SCU if SMP

37
target/linux/bcm53xx/patches-3.14/122-bcma-gpio-use-ChipCommon-GPIO-IRQ-on-BCM47XX-arch-on.patch Normal file
View file

@ -0,0 +1,37 @@
From dfe45880e4ac50ebaa57e5f8a52b69e7e74cb7ca Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <zajec5@gmail.com>
Date: Sun, 21 Sep 2014 20:40:32 +0200
Subject: [PATCH] bcma: gpio: use ChipCommon GPIO IRQ on BCM47XX arch only
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
GPIOs can be also used on bcm53xx, however this arch requires different
implementation of IRQ support. It uses different IRQ number (117) and
different masks & acking.
Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
---
drivers/bcma/driver_gpio.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
--- a/drivers/bcma/driver_gpio.c
+++ b/drivers/bcma/driver_gpio.c
@@ -76,7 +76,7 @@ static void bcma_gpio_free(struct gpio_c
bcma_chipco_gpio_pullup(cc, 1 << gpio, 0);
}
-#if IS_BUILTIN(CONFIG_BCMA_HOST_SOC)
+#if IS_BUILTIN(CONFIG_BCM47XX)
static int bcma_gpio_to_irq(struct gpio_chip *chip, unsigned gpio)
{
struct bcma_drv_cc *cc = bcma_gpio_get_cc(chip);
@@ -215,7 +215,7 @@ int bcma_gpio_init(struct bcma_drv_cc *c
chip->set = bcma_gpio_set_value;
chip->direction_input = bcma_gpio_direction_input;
chip->direction_output = bcma_gpio_direction_output;
-#if IS_BUILTIN(CONFIG_BCMA_HOST_SOC)
+#if IS_BUILTIN(CONFIG_BCM47XX)
chip->to_irq = bcma_gpio_to_irq;
#endif
switch (cc->core->bus->chipinfo.id) {