diff options
Diffstat (limited to 'arch/arm/mach-rockchip/rk3288/rk3288.c')
| -rw-r--r-- | arch/arm/mach-rockchip/rk3288/rk3288.c | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/arch/arm/mach-rockchip/rk3288/rk3288.c b/arch/arm/mach-rockchip/rk3288/rk3288.c index 5300650e19..7552472fbc 100644 --- a/arch/arm/mach-rockchip/rk3288/rk3288.c +++ b/arch/arm/mach-rockchip/rk3288/rk3288.c @@ -2,12 +2,34 @@ /* * Copyright (c) 2016 Rockchip Electronics Co., Ltd */ +#include <asm/armv7.h> #include <asm/io.h> #include <asm/arch-rockchip/hardware.h> #include <asm/arch-rockchip/grf_rk3288.h> #define GRF_BASE 0xff770000 +#ifdef CONFIG_SPL_BUILD +static void configure_l2ctlr(void) +{ + u32 l2ctlr; + + l2ctlr = read_l2ctlr(); + l2ctlr &= 0xfffc0000; /* clear bit0~bit17 */ + + /* + * Data RAM write latency: 2 cycles + * Data RAM read latency: 2 cycles + * Data RAM setup latency: 1 cycle + * Tag RAM write latency: 1 cycle + * Tag RAM read latency: 1 cycle + * Tag RAM setup latency: 1 cycle + */ + l2ctlr |= (1 << 3 | 1 << 0); + write_l2ctlr(l2ctlr); +} +#endif + int arch_cpu_init(void) { #ifdef CONFIG_SPL_BUILD |