diff options
Diffstat (limited to 'arch/arm/mach-uniphier/ph1-ld4/sg_init.c')
| -rw-r--r-- | arch/arm/mach-uniphier/ph1-ld4/sg_init.c | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/arch/arm/mach-uniphier/ph1-ld4/sg_init.c b/arch/arm/mach-uniphier/ph1-ld4/sg_init.c new file mode 100644 index 0000000000..2cc5df608f --- /dev/null +++ b/arch/arm/mach-uniphier/ph1-ld4/sg_init.c @@ -0,0 +1,28 @@ +/* + * Copyright (C) 2011-2014 Panasonic Corporation + * Author: Masahiro Yamada <yamada.m@jp.panasonic.com> + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <common.h> +#include <asm/io.h> +#include <asm/arch/sg-regs.h> + +void sg_init(void) +{ + u32 tmp; + + /* Set DDR size */ + tmp = sg_memconf_val_ch0(CONFIG_SDRAM0_SIZE, CONFIG_DDR_NUM_CH0); + tmp |= sg_memconf_val_ch1(CONFIG_SDRAM1_SIZE, CONFIG_DDR_NUM_CH1); +#if CONFIG_SDRAM0_BASE + CONFIG_SDRAM0_SIZE < CONFIG_SDRAM1_BASE + tmp |= SG_MEMCONF_SPARSEMEM; +#endif + writel(tmp, SG_MEMCONF); + + /* Input ports must be enabled before deasserting reset of cores */ + tmp = readl(SG_IECTRL); + tmp |= 0x1; + writel(tmp, SG_IECTRL); +} |