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spi: mtk-snfi: Add snfi support for MT7986 IC

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Add snfi support for MT7986 IC.

Signed-off-by: Xiangsheng Hou <xiangsheng.hou@mediatek.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Link: https://lore.kernel.org/r/20221205065756.26875-2-xiangsheng.hou@mediatek.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Xiangsheng Hou 2022-12-05 14:57:48 +08:00 committed by Mark Brown
parent 7dbfa445ff
commit 7073888c86
No known key found for this signature in database
GPG key ID: 24D68B725D5487D0
1 changed files with 27 additions and 2 deletions
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29
drivers/spi/spi-mtk-snfi.c
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@ -126,7 +126,8 @@
#define STR_DATA BIT(0)
#define NFI_STA 0x060
#define NFI_NAND_FSM GENMASK(28, 24)
#define NFI_NAND_FSM_7622 GENMASK(28, 24)
#define NFI_NAND_FSM_7986 GENMASK(29, 23)
#define NFI_FSM GENMASK(19, 16)
#define READ_EMPTY BIT(12)
@ -158,6 +159,7 @@
#define MAS_WR GENMASK(5, 3)
#define MAS_RDDLY GENMASK(2, 0)
#define NFI_MASTERSTA_MASK_7622 (MAS_ADDR | MAS_RD | MAS_WR | MAS_RDDLY)
#define NFI_MASTERSTA_MASK_7986 3
// SNFI registers
#define SNF_MAC_CTL 0x500
@ -220,6 +222,11 @@
static const u8 mt7622_spare_sizes[] = { 16, 26, 27, 28 };
static const u8 mt7986_spare_sizes[] = {
16, 26, 27, 28, 32, 36, 40, 44, 48, 49, 50, 51, 52, 62, 61, 63, 64, 67,
74
};
struct mtk_snand_caps {
u16 sector_size;
u16 max_sectors;
@ -230,6 +237,7 @@ struct mtk_snand_caps {
bool bbm_swap;
bool empty_page_check;
u32 mastersta_mask;
u32 nandfsm_mask;
const u8 *spare_sizes;
u32 num_spare_size;
@ -244,6 +252,7 @@ static const struct mtk_snand_caps mt7622_snand_caps = {
.bbm_swap = false,
.empty_page_check = false,
.mastersta_mask = NFI_MASTERSTA_MASK_7622,
.nandfsm_mask = NFI_NAND_FSM_7622,
.spare_sizes = mt7622_spare_sizes,
.num_spare_size = ARRAY_SIZE(mt7622_spare_sizes)
};
@ -257,10 +266,25 @@ static const struct mtk_snand_caps mt7629_snand_caps = {
.bbm_swap = true,
.empty_page_check = false,
.mastersta_mask = NFI_MASTERSTA_MASK_7622,
.nandfsm_mask = NFI_NAND_FSM_7622,
.spare_sizes = mt7622_spare_sizes,
.num_spare_size = ARRAY_SIZE(mt7622_spare_sizes)
};
static const struct mtk_snand_caps mt7986_snand_caps = {
.sector_size = 1024,
.max_sectors = 8,
.fdm_size = 8,
.fdm_ecc_size = 1,
.fifo_size = 64,
.bbm_swap = true,
.empty_page_check = true,
.mastersta_mask = NFI_MASTERSTA_MASK_7986,
.nandfsm_mask = NFI_NAND_FSM_7986,
.spare_sizes = mt7986_spare_sizes,
.num_spare_size = ARRAY_SIZE(mt7986_spare_sizes)
};
struct mtk_snand_conf {
size_t page_size;
size_t oob_size;
@ -360,7 +384,7 @@ static int mtk_nfi_reset(struct mtk_snand *snf)
}
ret = readl_poll_timeout(snf->nfi_base + NFI_STA, val,
!(val & (NFI_FSM | NFI_NAND_FSM)), 0,
!(val & (NFI_FSM | snf->caps->nandfsm_mask)), 0,
SNFI_POLL_INTERVAL);
if (ret) {
dev_err(snf->dev, "Failed to reset NFI\n");
@ -1295,6 +1319,7 @@ static irqreturn_t mtk_snand_irq(int irq, void *id)
static const struct of_device_id mtk_snand_ids[] = {
{ .compatible = "mediatek,mt7622-snand", .data = &mt7622_snand_caps },
{ .compatible = "mediatek,mt7629-snand", .data = &mt7629_snand_caps },
{ .compatible = "mediatek,mt7986-snand", .data = &mt7986_snand_caps },
{},
};