diff options
Diffstat (limited to 'arch/arm/mach-uniphier/ph1-sld3/memconf.c')
| -rw-r--r-- | arch/arm/mach-uniphier/ph1-sld3/memconf.c | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/arch/arm/mach-uniphier/ph1-sld3/memconf.c b/arch/arm/mach-uniphier/ph1-sld3/memconf.c new file mode 100644 index 0000000000..553a9e3384 --- /dev/null +++ b/arch/arm/mach-uniphier/ph1-sld3/memconf.c @@ -0,0 +1,52 @@ +/* + * Copyright (C) 2015 Masahiro Yamada <yamada.masahiro@socionext.com> + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <common.h> +#include <linux/types.h> +#include <linux/sizes.h> +#include <mach/sg-regs.h> + +static inline u32 sg_memconf_val_ch2(unsigned long size, int num) +{ + int size_mb = size / num; + u32 ret; + + switch (size_mb) { + case SZ_64M: + ret = SG_MEMCONF_CH2_SZ_64M; + break; + case SZ_128M: + ret = SG_MEMCONF_CH2_SZ_128M; + break; + case SZ_256M: + ret = SG_MEMCONF_CH2_SZ_256M; + break; + case SZ_512M: + ret = SG_MEMCONF_CH2_SZ_512M; + break; + default: + BUG(); + break; + } + + switch (num) { + case 1: + ret |= SG_MEMCONF_CH2_NUM_1; + break; + case 2: + ret |= SG_MEMCONF_CH2_NUM_2; + break; + default: + BUG(); + break; + } + return ret; +} + +u32 memconf_additional_val(void) +{ + return sg_memconf_val_ch2(CONFIG_SDRAM2_SIZE, CONFIG_DDR_NUM_CH2); +} |