diff options
Diffstat (limited to 'arch/arm/cpu/armv7/sunxi/dram_helpers.c')
| -rw-r--r-- | arch/arm/cpu/armv7/sunxi/dram_helpers.c | 37 |
1 files changed, 0 insertions, 37 deletions
diff --git a/arch/arm/cpu/armv7/sunxi/dram_helpers.c b/arch/arm/cpu/armv7/sunxi/dram_helpers.c deleted file mode 100644 index 9a94e1b679..0000000000 --- a/arch/arm/cpu/armv7/sunxi/dram_helpers.c +++ /dev/null @@ -1,37 +0,0 @@ -/* - * DRAM init helper functions - * - * (C) Copyright 2015 Hans de Goede <hdegoede@redhat.com> - * - * SPDX-License-Identifier: GPL-2.0+ - */ - -#include <common.h> -#include <asm/io.h> -#include <asm/arch/dram.h> - -/* - * Wait up to 1s for value to be set in given part of reg. - */ -void mctl_await_completion(u32 *reg, u32 mask, u32 val) -{ - unsigned long tmo = timer_get_us() + 1000000; - - while ((readl(reg) & mask) != val) { - if (timer_get_us() > tmo) - panic("Timeout initialising DRAM\n"); - } -} - -/* - * Test if memory at offset offset matches memory at begin of DRAM - */ -bool mctl_mem_matches(u32 offset) -{ - /* Try to write different values to RAM at two addresses */ - writel(0, CONFIG_SYS_SDRAM_BASE); - writel(0xaa55aa55, CONFIG_SYS_SDRAM_BASE + offset); - /* Check if the same value is actually observed when reading back */ - return readl(CONFIG_SYS_SDRAM_BASE) == - readl(CONFIG_SYS_SDRAM_BASE + offset); -} |