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| author | fishsoupisgood <github@madingley.org> | 2019-04-29 01:17:54 +0100 |
|---|---|---|
| committer | fishsoupisgood <github@madingley.org> | 2019-05-27 03:43:43 +0100 |
| commit | 3f2546b2ef55b661fd8dd69682b38992225e86f6 (patch) | |
| tree | 65ca85f13617aee1dce474596800950f266a456c /roms/u-boot/arch/arm/cpu/arm926ejs/mb86r0x/clock.c | |
| download | qemu-master.tar.gz qemu-master.tar.bz2 qemu-master.zip | |
Diffstat (limited to 'roms/u-boot/arch/arm/cpu/arm926ejs/mb86r0x/clock.c')
| -rw-r--r-- | roms/u-boot/arch/arm/cpu/arm926ejs/mb86r0x/clock.c | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/roms/u-boot/arch/arm/cpu/arm926ejs/mb86r0x/clock.c b/roms/u-boot/arch/arm/cpu/arm926ejs/mb86r0x/clock.c new file mode 100644 index 00000000..1f6f66eb --- /dev/null +++ b/roms/u-boot/arch/arm/cpu/arm926ejs/mb86r0x/clock.c @@ -0,0 +1,27 @@ +/* + * (C) Copyright 2010 + * Matthias Weisser <weisserm@arcor.de> + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <common.h> +#include <asm/io.h> +#include <asm/arch/hardware.h> + +/* + * Get the peripheral bus frequency depending on pll pin settings + */ +ulong get_bus_freq(ulong dummy) +{ + struct mb86r0x_crg * crg = (struct mb86r0x_crg *) + MB86R0x_CRG_BASE; + uint32_t pllmode; + + pllmode = readl(&crg->crpr) & MB86R0x_CRG_CRPR_PLLMODE; + + if (pllmode == MB86R0x_CRG_CRPR_PLLMODE_X20) + return 40000000; + + return 41164767; +} |