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ram: sun20i_d1: Fix automatic bank detection

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The check is expected to pass on D1s, where the DRAM die has only one
bank, as signified by bit 12 being unset in the stock dram_para1 value.
Changing the offset matches the algorithm from dram_sunxi_dw.c (which
uses 2 bank bits + 9 page bits), and works on D1, D1s, and T113-S3.

Link: https://github.com/smaeul/sun20i_d1_spl/issues/14
Link: https://github.com/YuzukiHD/TinyKasKit/commit/1bc76937dcf3
Reported-by: YuzukiTsuru <gloomyghost@gloomyghost.com>
Signed-off-by: Samuel Holland <samuel@sholland.org>
This commit is contained in:
Samuel Holland 2023-12-09 11:45:36 -06:00
parent 0ed210b265
commit 6b5d53a885
1 changed files with 1 additions and 1 deletions
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2
drivers/ram/sunxi/dram_sun20i_d1.c
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@ -1100,7 +1100,7 @@ static int auto_scan_dram_size(const dram_para_t *para, dram_config_t *config)
udelay(1);
// Test if bit A23 is BA2 or mirror XXX A22?
chk = CFG_SYS_SDRAM_BASE + (1U << 22);
chk = CFG_SYS_SDRAM_BASE + (1U << 11);
ptr = CFG_SYS_SDRAM_BASE;
for (i = 0, j = 0; i < 64; i++) {
if (readl(chk) != get_payload(i & 1, ptr)) {