There are multiple GPIOs that can be used with the same driver depending
on the CONFIG_GPIO_BASE defined in the controller driver.
GPIO3 and 4 require a clock to be enabled so let's enable them when the
driver is built.
Signed-off-by: Quentin Schulz <quentin.sch...@bootlin.com>
---
arch/arm/cpu/arm926ejs/spear/cpu.c | 3 +++
arch/arm/include/asm/arch-spear/spr_misc.h | 1 +
2 files changed, 4 insertions(+)
diff --git a/arch/arm/cpu/arm926ejs/spear/cpu.c
b/arch/arm/cpu/arm926ejs/spear/cpu.c
index 0970aca2ef..6fc29e77ff 100644
--- a/arch/arm/cpu/arm926ejs/spear/cpu.c
+++ b/arch/arm/cpu/arm926ejs/spear/cpu.c
@@ -49,6 +49,9 @@ int arch_cpu_init(void)
#if defined(CONFIG_USB_EHCI_SPEAR)
periph1_clken |= PERIPH_USBH1 | PERIPH_USBH2;
#endif
+#if defined(CONFIG_SPEAR_GPIO)
+ periph1_clken |= MISC_GPIO3ENB | MISC_GPIO4ENB;
+#endif
writel(periph1_clken, &misc_p->periph1_clken);
diff --git a/arch/arm/include/asm/arch-spear/spr_misc.h
b/arch/arm/include/asm/arch-spear/spr_misc.h
index c906730699..65063fca51 100644
--- a/arch/arm/include/asm/arch-spear/spr_misc.h
+++ b/arch/arm/include/asm/arch-spear/spr_misc.h
@@ -144,6 +144,7 @@ struct misc_regs {
#define MISC_USBDENB 0x01000000
#define MISC_ETHENB 0x00800000
#define MISC_SMIENB 0x00200000
+#define MISC_GPIO3ENB 0x00040000
#define MISC_GPT3ENB 0x00010000
#define MISC_GPIO4ENB 0x00002000
#define MISC_GPT2ENB 0x00000800
--
2.17.1
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