clk: at91: add a driver for the h32mx clock

Newer SoCs have two different AHB interconnect. The AHB 32 bits Matrix
interconnect (h32mx) has a clock that can be setup at the half of the h64mx
clock (which is mck). The h32mx clock can not exceed 90 MHz.

Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>

1 files changed, 3 insertions, 0 deletions

diff --git a/arch/arm/mach-at91/Kconfig b/arch/arm/mach-at91/Kconfig
index 6cc6f7aebdae..321210cc3be7 100644
--- a/arch/arm/mach-at91/Kconfig
+++ b/arch/arm/mach-at91/Kconfig
@@ -42,6 +42,9 @@ config AT91_SAM9_TIME
 config HAVE_AT91_SMD
         bool
 
+config HAVE_AT91_H32MX
+        bool
+
 config SOC_AT91SAM9
         bool
         select AT91_SAM9_TIME