From d2d908d258b8ffeda3e29bdc4164014730592ae6 Mon Sep 17 00:00:00 2001 From: Quentin Schulz Date: Fri, 31 Aug 2018 16:15:53 +0200 Subject: [PATCH] arm: spear: enable GPIO3 and 4 clocks when the GPIO controller driver is built 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 --- 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 e852a88..88a40c6 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 c906730..65063fc 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