"Das U-Boot" Source Tree
ram: rockchip: common: Fix cs_cap in sdram_detect_dbw
The currently existing cs_cap calculation converts to MB, but the values
compared to are in Byte.
Example: 8Gb DDR3, 32-bit (15 cols, 10 rows) == 0x400 (1024 MB)
Fix it.
Signed-off-by: Alex Bee <knaerzche@gmail.com>
authored by
Alex Bee
and committed by
joshua stein
ae39917a
085a19a7
+6
-6
+6
-6
drivers/ram/rockchip/sdram_common.c
+6
-6
drivers/ram/rockchip/sdram_common.c
···
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bw = cap_info->bw;
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cs_cap = (1 << (row + col + bk + bw - 20));
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if (bw == 2) {
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-
if (cs_cap <= 0x2000000) /* 256Mb */
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+
if (cs_cap <= 0x20) /* 256Mb */
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die_bw_0 = (col < 9) ? 2 : 1;
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-
else if (cs_cap <= 0x10000000) /* 2Gb */
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+
else if (cs_cap <= 0x100) /* 2Gb */
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die_bw_0 = (col < 10) ? 2 : 1;
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-
else if (cs_cap <= 0x40000000) /* 8Gb */
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+
else if (cs_cap <= 0x400) /* 8Gb */
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die_bw_0 = (col < 11) ? 2 : 1;
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else
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die_bw_0 = (col < 12) ? 2 : 1;
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if (cs > 1) {
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row = cap_info->cs1_row;
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cs_cap = (1 << (row + col + bk + bw - 20));
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-
if (cs_cap <= 0x2000000) /* 256Mb */
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+
if (cs_cap <= 0x20) /* 256Mb */
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die_bw_0 = (col < 9) ? 2 : 1;
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-
else if (cs_cap <= 0x10000000) /* 2Gb */
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+
else if (cs_cap <= 0x100) /* 2Gb */
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die_bw_0 = (col < 10) ? 2 : 1;
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-
else if (cs_cap <= 0x40000000) /* 8Gb */
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+
else if (cs_cap <= 0x400) /* 8Gb */
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die_bw_0 = (col < 11) ? 2 : 1;
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else
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die_bw_0 = (col < 12) ? 2 : 1;