From b3134fce890754ceb33fe79d7b0d8f78ee83129f Mon Sep 17 00:00:00 2001 From: Darwin Rambo Date: Tue, 11 Feb 2014 11:06:33 -0800 Subject: arch: kona: Initial commit of kona-common architecture code The Kona architecture is present on a number of Broadcom mobile SoCs including the bcm281xx family of chips. Signed-off-by: Darwin Rambo Reviewed-by: Steve Rae Reviewed-by: Tim Kryger --- arch/arm/cpu/armv7/Makefile | 1 + arch/arm/cpu/armv7/kona-common/Makefile | 9 +++++++++ arch/arm/cpu/armv7/kona-common/clk-stubs.c | 21 +++++++++++++++++++++ arch/arm/cpu/armv7/kona-common/hwinit-common.c | 16 ++++++++++++++++ arch/arm/cpu/armv7/kona-common/s_init.c | 12 ++++++++++++ 5 files changed, 59 insertions(+) create mode 100644 arch/arm/cpu/armv7/kona-common/Makefile create mode 100644 arch/arm/cpu/armv7/kona-common/clk-stubs.c create mode 100644 arch/arm/cpu/armv7/kona-common/hwinit-common.c create mode 100644 arch/arm/cpu/armv7/kona-common/s_init.c (limited to 'arch/arm/cpu') diff --git a/arch/arm/cpu/armv7/Makefile b/arch/arm/cpu/armv7/Makefile index 0467d00d6a..119ebb3b22 100644 --- a/arch/arm/cpu/armv7/Makefile +++ b/arch/arm/cpu/armv7/Makefile @@ -23,6 +23,7 @@ obj-y += nonsec_virt.o obj-y += virt-v7.o endif +obj-$(CONFIG_KONA) += kona-common/ obj-$(CONFIG_OMAP_COMMON) += omap-common/ obj-$(CONFIG_TEGRA) += tegra-common/ diff --git a/arch/arm/cpu/armv7/kona-common/Makefile b/arch/arm/cpu/armv7/kona-common/Makefile new file mode 100644 index 0000000000..da225cb4f7 --- /dev/null +++ b/arch/arm/cpu/armv7/kona-common/Makefile @@ -0,0 +1,9 @@ +# +# Copyright 2013 Broadcom Corporation. +# +# SPDX-License-Identifier: GPL-2.0+ +# + +obj-y += s_init.o +obj-y += hwinit-common.o +obj-y += clk-stubs.o diff --git a/arch/arm/cpu/armv7/kona-common/clk-stubs.c b/arch/arm/cpu/armv7/kona-common/clk-stubs.c new file mode 100644 index 0000000000..338e0e4962 --- /dev/null +++ b/arch/arm/cpu/armv7/kona-common/clk-stubs.c @@ -0,0 +1,21 @@ +/* + * Copyright 2013 Broadcom Corporation. + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include + +/* + * These weak functions are available to kona architectures that don't + * require clock enables from the driver code. + */ +int __weak clk_sdio_enable(void *base, u32 rate, u32 *actual_ratep) +{ + return 0; +} + +int __weak clk_bsc_enable(void *base, u32 rate, u32 *actual_ratep) +{ + return 0; +} diff --git a/arch/arm/cpu/armv7/kona-common/hwinit-common.c b/arch/arm/cpu/armv7/kona-common/hwinit-common.c new file mode 100644 index 0000000000..f8b1e063cd --- /dev/null +++ b/arch/arm/cpu/armv7/kona-common/hwinit-common.c @@ -0,0 +1,16 @@ +/* + * Copyright 2013 Broadcom Corporation. + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include +#include + +#ifndef CONFIG_SYS_DCACHE_OFF +void enable_caches(void) +{ + /* Enable D-cache. I-cache is already enabled in start.S */ + dcache_enable(); +} +#endif diff --git a/arch/arm/cpu/armv7/kona-common/s_init.c b/arch/arm/cpu/armv7/kona-common/s_init.c new file mode 100644 index 0000000000..6066a73c54 --- /dev/null +++ b/arch/arm/cpu/armv7/kona-common/s_init.c @@ -0,0 +1,12 @@ +/* + * Copyright 2014 Broadcom Corporation. + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +/* + * Early system init. Currently empty. + */ +void s_init(void) +{ +} -- cgit v1.2.1