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dm: ram: bmips: split bcm6358_get_ram_size

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This is done in order to reuse ram size calculation for BCM6338/BCM6348

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Álvaro Fernández Rojas 2017-05-16 18:39:01 +02:00 committed by Daniel Schwierzeck
parent 33a9995908
commit 2165961c37
1 changed files with 13 additions and 10 deletions
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23
drivers/ram/bmips_ram.c
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@ -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;
is_32b = (val & MEMC_CFG_32B_MASK) ? 0 : 1;
/* 0 => 11 address bits ... 2 => 13 address bits */
rows += 11;
/* 0 => 8 address bits ... 2 => 10 address bits */
cols += 8;
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)