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wifi: brcmfmac: chip: Handle 1024-unit sizes for TCM blocks

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BCM4387 has trailing odd-sized blocks as part of TCM which have
their size described as a multiple of 1024 instead of 8192. Handle this
so we can compute the TCM size properly.

Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: Hector Martin <marcan@marcan.st>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20230214092423.15175-2-marcan@marcan.st
This commit is contained in:
Hector Martin 2023-02-14 18:24:15 +09:00 committed by Kalle Valo
parent 3c7c07ca7a
commit 098e0b105c
1 changed files with 8 additions and 2 deletions
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10
drivers/net/wireless/broadcom/brcm80211/brcmfmac/chip.c
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@ -212,8 +212,9 @@ struct sbsocramregs {
#define ARMCR4_TCBANB_MASK 0xf
#define ARMCR4_TCBANB_SHIFT 0
#define ARMCR4_BSZ_MASK 0x3f
#define ARMCR4_BSZ_MASK 0x7f
#define ARMCR4_BSZ_MULT 8192
#define ARMCR4_BLK_1K_MASK 0x200
struct brcmf_core_priv {
struct brcmf_core pub;
@ -684,6 +685,7 @@ static u32 brcmf_chip_tcm_ramsize(struct brcmf_core_priv *cr4)
u32 nbb;
u32 totb;
u32 bxinfo;
u32 blksize;
u32 idx;
corecap = brcmf_chip_core_read32(cr4, ARMCR4_CAP);
@ -695,7 +697,11 @@ static u32 brcmf_chip_tcm_ramsize(struct brcmf_core_priv *cr4)
for (idx = 0; idx < totb; idx++) {
brcmf_chip_core_write32(cr4, ARMCR4_BANKIDX, idx);
bxinfo = brcmf_chip_core_read32(cr4, ARMCR4_BANKINFO);
memsize += ((bxinfo & ARMCR4_BSZ_MASK) + 1) * ARMCR4_BSZ_MULT;
blksize = ARMCR4_BSZ_MULT;
if (bxinfo & ARMCR4_BLK_1K_MASK)
blksize >>= 3;
memsize += ((bxinfo & ARMCR4_BSZ_MASK) + 1) * blksize;
}
return memsize;