diff options
Diffstat (limited to 'drivers/ram')
| -rw-r--r-- | drivers/ram/bmips_ram.c | 23 |
1 files changed, 13 insertions, 10 deletions
diff --git a/drivers/ram/bmips_ram.c b/drivers/ram/bmips_ram.c index d0f7cd7..382e231 100644 --- a/drivers/ram/bmips_ram.c +++ b/drivers/ram/bmips_ram.c @@ -40,24 +40,27 @@ static ulong bcm6328_get_ram_size(struct bmips_ram_priv *priv) return readl_be(priv->regs + DDR_CSEND_REG) << 24; } +static ulong bmips_dram_size(unsigned int cols, unsigned int rows, + unsigned int is_32b, unsigned int banks) +{ + rows += 11; /* 0 => 11 address bits ... 2 => 13 address bits */ + cols += 8; /* 0 => 8 address bits ... 2 => 10 address bits */ + is_32b += 1; + + return 1 << (cols + rows + is_32b + banks); +} + static ulong bcm6358_get_ram_size(struct bmips_ram_priv *priv) { - unsigned int cols = 0, rows = 0, is_32bits = 0, banks = 0; + unsigned int cols = 0, rows = 0, is_32b = 0; u32 val; val = readl_be(priv->regs + MEMC_CFG_REG); rows = (val & MEMC_CFG_ROW_MASK) >> MEMC_CFG_ROW_SHIFT; cols = (val & MEMC_CFG_COL_MASK) >> MEMC_CFG_COL_SHIFT; - is_32bits = (val & MEMC_CFG_32B_MASK) ? 0 : 1; - banks = 2; - - /* 0 => 11 address bits ... 2 => 13 address bits */ - rows += 11; - - /* 0 => 8 address bits ... 2 => 10 address bits */ - cols += 8; + is_32b = (val & MEMC_CFG_32B_MASK) ? 0 : 1; - return 1 << (cols + rows + (is_32bits + 1) + banks); + return bmips_dram_size(cols, rows, is_32b, 2); } static int bmips_ram_get_info(struct udevice *dev, struct ram_info *info) |