diff options
| author | Dai Okamura <okamura.dai@socionext.com> | 2022-12-09 20:33:48 +0900 |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2023-01-02 16:01:39 -0500 |
| commit | 872413bb0a03831ffe6f060b40cdb8bcc76f9867 (patch) | |
| tree | 3a3bce649fcfa9fbee7a5ab7e6b6def26eea259a /include/configs/uniphier.h | |
| parent | ef75d482aa9d75d41305e5dddcbc8632f528e6f5 (diff) | |
| download | u-boot-872413bb0a03831ffe6f060b40cdb8bcc76f9867.zip u-boot-872413bb0a03831ffe6f060b40cdb8bcc76f9867.tar.gz u-boot-872413bb0a03831ffe6f060b40cdb8bcc76f9867.tar.bz2 | |
arm: uniphier: use DM_TIMER of arm a9 global timer
All uniphier v7 SoCs have cortex-a9 and use cortex-a9 global timer
in a simple implementation. Now DM_TIMER of it is available
on 35751c7f3f ("timer: sti: convert sti-timer to arm a9 global timer"),
so let's switch to it.
The old driver reads the lower 32bits of counter field
and sets the prescaler as 50 with PERIPHCLK(=50MHz),
so the global timer works as a 32-bit 1MHz timer.
The DM_TIMER uses the whole 64bits with no prescaler,
so the global timer works as a 64-bit PERIPHCLK timer.
CONFIG_SYS_HZ_CLOCK is set as the default PERIPHCLK frequency,
if there is no 'clocks' property in devicetree.
Signed-off-by: Dai Okamura <okamura.dai@socionext.com>
Diffstat (limited to 'include/configs/uniphier.h')
| -rw-r--r-- | include/configs/uniphier.h | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/include/configs/uniphier.h b/include/configs/uniphier.h index ecf0d2a..0a14d04 100644 --- a/include/configs/uniphier.h +++ b/include/configs/uniphier.h @@ -36,8 +36,7 @@ BOOT_TARGET_DEVICE_USB(func) #if !defined(CONFIG_ARM64) -/* Time clock 1MHz */ -#define CFG_SYS_TIMER_RATE 1000000 +#define CFG_SYS_HZ_CLOCK 50000000 #endif #define CFG_SYS_NAND_REGS_BASE 0x68100000 |