diff options
| author | Philipp Tomsich <philipp.tomsich@theobroma-systems.com> | 2016-04-08 00:27:11 +0200 |
|---|---|---|
| committer | Klaus Goger <klaus.goger@theobroma-systems.com> | 2016-09-18 13:45:14 +0200 |
| commit | 2b9c186d3c66addaec852774b7b2e98358feb03c (patch) | |
| tree | 4f7c2ffb15ccce26deea3d72d9a171b137abcd8d /arch/arm/include/asm/arch-sunxi/cpu_sun9i.h | |
| parent | 9329adc4c7efa2e56a529960969a5ea47082ed15 (diff) | |
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.
Diffstat (limited to 'arch/arm/include/asm/arch-sunxi/cpu_sun9i.h')
| -rw-r--r-- | arch/arm/include/asm/arch-sunxi/cpu_sun9i.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/arm/include/asm/arch-sunxi/cpu_sun9i.h b/arch/arm/include/asm/arch-sunxi/cpu_sun9i.h index 00ffeca553..8ace4e7cb0 100644 --- a/arch/arm/include/asm/arch-sunxi/cpu_sun9i.h +++ b/arch/arm/include/asm/arch-sunxi/cpu_sun9i.h @@ -23,6 +23,8 @@ #define SUNXI_NFC_BASE (REGS_AHB0_BASE + 0x3000) #define SUNXI_TSC_BASE (REGS_AHB0_BASE + 0x4000) +#define SUNXI_GTBUS_BASE (REGS_AHB0_BASE + 0x9000) + #define SUNXI_MMC0_BASE (REGS_AHB0_BASE + 0x0f000) #define SUNXI_MMC1_BASE (REGS_AHB0_BASE + 0x10000) #define SUNXI_MMC2_BASE (REGS_AHB0_BASE + 0x11000) |