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@ -14,6 +14,16 @@ |
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#include <asm/io.h> |
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#include <dm/device.h> |
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#define SDRAM_CFG_REG 0x0 |
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#define SDRAM_CFG_COL_SHIFT 4 |
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#define SDRAM_CFG_COL_MASK (0x3 << SDRAM_CFG_COL_SHIFT) |
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#define SDRAM_CFG_ROW_SHIFT 6 |
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#define SDRAM_CFG_ROW_MASK (0x3 << SDRAM_CFG_ROW_SHIFT) |
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#define SDRAM_CFG_32B_SHIFT 10 |
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#define SDRAM_CFG_32B_MASK (1 << SDRAM_CFG_32B_SHIFT) |
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#define SDRAM_CFG_BANK_SHIFT 13 |
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#define SDRAM_CFG_BANK_MASK (1 << SDRAM_CFG_BANK_SHIFT) |
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#define MEMC_CFG_REG 0x4 |
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#define MEMC_CFG_32B_SHIFT 1 |
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#define MEMC_CFG_32B_MASK (1 << MEMC_CFG_32B_SHIFT) |
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@ -50,6 +60,20 @@ static ulong bmips_dram_size(unsigned int cols, unsigned int rows, |
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return 1 << (cols + rows + is_32b + banks); |
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} |
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static ulong bcm6338_get_ram_size(struct bmips_ram_priv *priv) |
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{ |
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unsigned int cols = 0, rows = 0, is_32b = 0, banks = 0; |
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u32 val; |
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val = readl_be(priv->regs + SDRAM_CFG_REG); |
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rows = (val & SDRAM_CFG_ROW_MASK) >> SDRAM_CFG_ROW_SHIFT; |
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cols = (val & SDRAM_CFG_COL_MASK) >> SDRAM_CFG_COL_SHIFT; |
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is_32b = (val & SDRAM_CFG_32B_MASK) ? 1 : 0; |
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banks = (val & SDRAM_CFG_BANK_MASK) ? 2 : 1; |
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return bmips_dram_size(cols, rows, is_32b, banks); |
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} |
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static ulong bcm6358_get_ram_size(struct bmips_ram_priv *priv) |
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{ |
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unsigned int cols = 0, rows = 0, is_32b = 0; |
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@ -82,6 +106,10 @@ static const struct bmips_ram_hw bmips_ram_bcm6328 = { |
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.get_ram_size = bcm6328_get_ram_size, |
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}; |
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static const struct bmips_ram_hw bmips_ram_bcm6338 = { |
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.get_ram_size = bcm6338_get_ram_size, |
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}; |
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static const struct bmips_ram_hw bmips_ram_bcm6358 = { |
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.get_ram_size = bcm6358_get_ram_size, |
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}; |
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@ -91,6 +119,9 @@ static const struct udevice_id bmips_ram_ids[] = { |
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.compatible = "brcm,bcm6328-mc", |
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.data = (ulong)&bmips_ram_bcm6328, |
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}, { |
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.compatible = "brcm,bcm6338-mc", |
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.data = (ulong)&bmips_ram_bcm6338, |
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}, { |
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.compatible = "brcm,bcm6358-mc", |
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.data = (ulong)&bmips_ram_bcm6358, |
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}, { /* sentinel */ } |
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