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| author | Philipp Tomsich <philipp.tomsich@theobroma-systems.com> | 2016-10-28 18:21:29 +0800 |
|---|---|---|
| committer | Hans de Goede <hdegoede@redhat.com> | 2016-10-30 11:38:04 +0100 |
| commit | ea1af9f26bdbe3c9ed5ffb8ce982dc45edfaf680 (patch) | |
| tree | d00e4adeea0e0102946a9affc3b1ba327ff5d4c0 /arch/arm/mach-sunxi/clock.c | |
| parent | 297bb9e0fc7049c7771feed5e11cf6db89b19f27 (diff) | |
| download | u-boot-ea1af9f26bdbe3c9ed5ffb8ce982dc45edfaf680.tar.gz | |
sunxi: add gtbus-initialisation for sun9i
On sun9i, the GTBUS manages transaction priority and bandwidth
for multiple read ports when accessing DRAM. The initialisation
mirrors the settings from Allwinner's boot0 for now, even though
this may not be optimal for all applications (e.g. headless
systems might want to give priority to IO modules).
Adding a common callout to gtbus_init() from the SPL clock init
with a weakly defined implementation in sunxi/clock.c to fallback
to for platforms that don't require this.
[wens@csie.org: Moved gtbus_sun9i.c to arch/arm/mach-sunxi/; style cleanup]
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Acked-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Diffstat (limited to 'arch/arm/mach-sunxi/clock.c')
| -rw-r--r-- | arch/arm/mach-sunxi/clock.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/arch/arm/mach-sunxi/clock.c b/arch/arm/mach-sunxi/clock.c index 0b8fc94711..e6f53f91e6 100644 --- a/arch/arm/mach-sunxi/clock.c +++ b/arch/arm/mach-sunxi/clock.c @@ -13,16 +13,22 @@ #include <asm/arch/clock.h> #include <asm/arch/gpio.h> #include <asm/arch/prcm.h> +#include <asm/arch/gtbus.h> #include <asm/arch/sys_proto.h> __weak void clock_init_sec(void) { } +__weak void gtbus_init(void) +{ +} + int clock_init(void) { #ifdef CONFIG_SPL_BUILD clock_init_safe(); + gtbus_init(); #endif clock_init_uart(); clock_init_sec(); |