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| author | Stefano Babic <sbabic@denx.de> | 2014-03-05 12:51:26 +0100 |
|---|---|---|
| committer | Stefano Babic <sbabic@denx.de> | 2014-03-05 12:51:26 +0100 |
| commit | 1ad6364eeb4f578e423081d1748e8a3fdf1ab01d (patch) | |
| tree | f55731737edf1cfd653b21f2ff9d387e6c53ae24 /arch/arc/cpu/arc700/cpu.c | |
| parent | 335143c76612a0ae26eef8abeda77641d4f63b50 (diff) | |
| parent | cc07294bc704694ae33db75b25ac557e5917a83f (diff) | |
| download | u-boot-imx-1ad6364eeb4f578e423081d1748e8a3fdf1ab01d.zip u-boot-imx-1ad6364eeb4f578e423081d1748e8a3fdf1ab01d.tar.gz u-boot-imx-1ad6364eeb4f578e423081d1748e8a3fdf1ab01d.tar.bz2 | |
Merge branch 'master' of git://git.denx.de/u-boot-arm
Diffstat (limited to 'arch/arc/cpu/arc700/cpu.c')
| -rw-r--r-- | arch/arc/cpu/arc700/cpu.c | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/arch/arc/cpu/arc700/cpu.c b/arch/arc/cpu/arc700/cpu.c new file mode 100644 index 0000000..50634b8 --- /dev/null +++ b/arch/arc/cpu/arc700/cpu.c @@ -0,0 +1,47 @@ +/* + * Copyright (C) 2013-2014 Synopsys, Inc. All rights reserved. + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <common.h> +#include <asm/arcregs.h> +#include <asm/cache.h> + +DECLARE_GLOBAL_DATA_PTR; + +int arch_cpu_init(void) +{ +#ifdef CONFIG_SYS_ICACHE_OFF + icache_disable(); +#else + icache_enable(); + invalidate_icache_all(); +#endif + + flush_dcache_all(); +#ifdef CONFIG_SYS_DCACHE_OFF + dcache_disable(); +#else + dcache_enable(); +#endif + timer_init(); + +/* In simulation (ISS) "CHIPID" and "ARCNUM" are all "ff" */ + if ((read_aux_reg(ARC_AUX_IDENTITY) & 0xffffff00) == 0xffffff00) + gd->arch.running_on_hw = 0; + else + gd->arch.running_on_hw = 1; + + gd->cpu_clk = CONFIG_SYS_CLK_FREQ; + gd->ram_size = CONFIG_SYS_SDRAM_SIZE; + + return 0; +} + +int arch_early_init_r(void) +{ + gd->bd->bi_memstart = CONFIG_SYS_SDRAM_BASE; + gd->bd->bi_memsize = CONFIG_SYS_SDRAM_SIZE; + return 0; +} |