[PATCH v3 08/10] clk: ns2: add clock support for Broadcom Northstar 2 SoC
From: sbranden@broadcom.com (Scott Branden)
Date: 2015-10-15 20:40:44
Also in:
linux-clk, linux-devicetree, lkml
We need some sort of kconfig option to differentiate NS2 clock driver from being pulled in all the time. On 15-10-15 12:48 PM, Jon Mason wrote:
quoted hunk ↗ jump to hunk
The Broadcom Northstar 2 SoC is architected under the iProc architecture. It has the following PLLs: GENPLL SCR, GENPLL SW, LCPLL DDR, LCPLL Ports, all derived from an onboard crystal. Signed-off-by: Jon Mason <redacted> --- drivers/clk/Makefile | 2 +- drivers/clk/bcm/Makefile | 1 + drivers/clk/bcm/clk-ns2.c | 288 ++++++++++++++++++++++++++++++++++++ include/dt-bindings/clock/bcm-ns2.h | 72 +++++++++ 4 files changed, 362 insertions(+), 1 deletion(-) create mode 100644 drivers/clk/bcm/clk-ns2.c create mode 100644 include/dt-bindings/clock/bcm-ns2.hdiff --git a/drivers/clk/Makefile b/drivers/clk/Makefile index d08b3e5..6124bd3 100644 --- a/drivers/clk/Makefile +++ b/drivers/clk/Makefile@@ -47,7 +47,7 @@ obj-$(CONFIG_COMMON_CLK_WM831X) += clk-wm831x.o obj-$(CONFIG_COMMON_CLK_XGENE) += clk-xgene.o obj-$(CONFIG_COMMON_CLK_PWM) += clk-pwm.o obj-$(CONFIG_COMMON_CLK_AT91) += at91/ -obj-$(CONFIG_ARCH_BCM) += bcm/ +obj-y += bcm/ obj-$(CONFIG_ARCH_BERLIN) += berlin/ obj-$(CONFIG_ARCH_HISI) += hisilicon/ obj-$(CONFIG_ARCH_MXC) += imx/diff --git a/drivers/clk/bcm/Makefile b/drivers/clk/bcm/Makefile index e258b28..2d1cbc5 100644 --- a/drivers/clk/bcm/Makefile +++ b/drivers/clk/bcm/Makefile@@ -3,6 +3,7 @@ obj-$(CONFIG_CLK_BCM_KONA) += clk-kona-setup.o obj-$(CONFIG_CLK_BCM_KONA) += clk-bcm281xx.o obj-$(CONFIG_CLK_BCM_KONA) += clk-bcm21664.o obj-$(CONFIG_COMMON_CLK_IPROC) += clk-iproc-armpll.o clk-iproc-pll.o clk-iproc-asiu.o +obj-$(CONFIG_COMMON_CLK_IPROC) += clk-ns2.o
NS2 code is dragged in for all IPROC SoCs. We need a config option for NS2 (CONFIG_ARCH_BCM_NS2) to avoid this (if Arnd allows this for ARMv8 processors... ?). You can see below ARMv7 processors don't have this problem. If not we need to add CONFIG_CLK_NS2.