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| author | Alexey Brodkin <Alexey.Brodkin@synopsys.com> | 2014-02-04 12:56:14 +0400 |
|---|---|---|
| committer | Tom Rini <trini@ti.com> | 2014-02-07 08:14:32 -0500 |
| commit | 2f16ac9df4d898ab7266f768f125a638c7c5add8 (patch) | |
| tree | f45e5d608b684b8024e15ac5d0cef37e344d10ab /arch/arc/cpu/arc700/cpu.c | |
| parent | 288aaacf2de5507f33c0bb26eb063f2f69033dd6 (diff) | |
| download | talos-obmc-uboot-2f16ac9df4d898ab7266f768f125a638c7c5add8.tar.gz talos-obmc-uboot-2f16ac9df4d898ab7266f768f125a638c7c5add8.zip | |
arc: add cpu files
Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
Cc: Vineet Gupta <vgupta@synopsys.com>
Cc: Francois Bedard <fbedard@synopsys.com>
Cc: Wolfgang Denk <wd@denx.de>
Cc: Heiko Schocher <hs@denx.de>
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 0000000000..50634b860f --- /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; +} |
