From: Mika Westerberg <mika.westerberg@linux.intel.com>
To: Mark Brown <broonie@kernel.org>
Cc: Mika Westerberg <mika.westerberg@linux.intel.com>,
linux-spi@vger.kernel.org
Subject: [PATCH 1/4] spi: intel: Use ->replacement_op in intel_spi_hw_cycle()
Date: Tue, 25 Oct 2022 09:46:20 +0300 [thread overview]
Message-ID: <20221025064623.22808-2-mika.westerberg@linux.intel.com> (raw)
In-Reply-To: <20221025064623.22808-1-mika.westerberg@linux.intel.com>
This way we do not need the SPI-NOR opcode -> Intel controller opcode
mapping in the function anymore.
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
---
drivers/spi/spi-intel.c | 52 ++++++++++++++++++-----------------------
1 file changed, 23 insertions(+), 29 deletions(-)
diff --git a/drivers/spi/spi-intel.c b/drivers/spi/spi-intel.c
index acd8ec4f86a7..b3685460d848 100644
--- a/drivers/spi/spi-intel.c
+++ b/drivers/spi/spi-intel.c
@@ -352,34 +352,25 @@ static int intel_spi_opcode_index(struct intel_spi *ispi, u8 opcode, int optype)
return 0;
}
-static int intel_spi_hw_cycle(struct intel_spi *ispi, u8 opcode, size_t len)
+static int intel_spi_hw_cycle(struct intel_spi *ispi,
+ const struct intel_spi_mem_op *iop, size_t len)
{
u32 val, status;
int ret;
+ if (!iop->replacement_op)
+ return -EINVAL;
+
val = readl(ispi->base + HSFSTS_CTL);
val &= ~(HSFSTS_CTL_FCYCLE_MASK | HSFSTS_CTL_FDBC_MASK);
- switch (opcode) {
- case SPINOR_OP_RDID:
- val |= HSFSTS_CTL_FCYCLE_RDID;
- break;
- case SPINOR_OP_WRSR:
- val |= HSFSTS_CTL_FCYCLE_WRSR;
- break;
- case SPINOR_OP_RDSR:
- val |= HSFSTS_CTL_FCYCLE_RDSR;
- break;
- default:
- return -EINVAL;
- }
-
if (len > INTEL_SPI_FIFO_SZ)
return -EINVAL;
val |= (len - 1) << HSFSTS_CTL_FDBC_SHIFT;
val |= HSFSTS_CTL_FCERR | HSFSTS_CTL_FDONE;
val |= HSFSTS_CTL_FGO;
+ val |= iop->replacement_op;
writel(val, ispi->base + HSFSTS_CTL);
ret = intel_spi_wait_hw_busy(ispi);
@@ -483,7 +474,7 @@ static int intel_spi_read_reg(struct intel_spi *ispi, const struct spi_mem *mem,
ret = intel_spi_sw_cycle(ispi, opcode, nbytes,
OPTYPE_READ_NO_ADDR);
else
- ret = intel_spi_hw_cycle(ispi, opcode, nbytes);
+ ret = intel_spi_hw_cycle(ispi, iop, nbytes);
if (ret)
return ret;
@@ -548,7 +539,7 @@ static int intel_spi_write_reg(struct intel_spi *ispi, const struct spi_mem *mem
if (ispi->swseq_reg)
return intel_spi_sw_cycle(ispi, opcode, nbytes,
OPTYPE_WRITE_NO_ADDR);
- return intel_spi_hw_cycle(ispi, opcode, nbytes);
+ return intel_spi_hw_cycle(ispi, iop, nbytes);
}
static int intel_spi_read(struct intel_spi *ispi, const struct spi_mem *mem,
@@ -912,18 +903,21 @@ static const struct spi_controller_mem_ops intel_spi_mem_ops = {
*/
#define INTEL_SPI_GENERIC_OPS \
/* Status register operations */ \
- INTEL_SPI_MEM_OP(SPI_MEM_OP_CMD(SPINOR_OP_RDID, 1), \
- SPI_MEM_OP_NO_ADDR, \
- INTEL_SPI_OP_DATA_IN(1), \
- intel_spi_read_reg), \
- INTEL_SPI_MEM_OP(SPI_MEM_OP_CMD(SPINOR_OP_RDSR, 1), \
- SPI_MEM_OP_NO_ADDR, \
- INTEL_SPI_OP_DATA_IN(1), \
- intel_spi_read_reg), \
- INTEL_SPI_MEM_OP(SPI_MEM_OP_CMD(SPINOR_OP_WRSR, 1), \
- SPI_MEM_OP_NO_ADDR, \
- INTEL_SPI_OP_DATA_OUT(1), \
- intel_spi_write_reg), \
+ INTEL_SPI_MEM_OP_REPL(SPI_MEM_OP_CMD(SPINOR_OP_RDID, 1), \
+ SPI_MEM_OP_NO_ADDR, \
+ INTEL_SPI_OP_DATA_IN(1), \
+ intel_spi_read_reg, \
+ HSFSTS_CTL_FCYCLE_RDID), \
+ INTEL_SPI_MEM_OP_REPL(SPI_MEM_OP_CMD(SPINOR_OP_RDSR, 1), \
+ SPI_MEM_OP_NO_ADDR, \
+ INTEL_SPI_OP_DATA_IN(1), \
+ intel_spi_read_reg, \
+ HSFSTS_CTL_FCYCLE_RDSR), \
+ INTEL_SPI_MEM_OP_REPL(SPI_MEM_OP_CMD(SPINOR_OP_WRSR, 1), \
+ SPI_MEM_OP_NO_ADDR, \
+ INTEL_SPI_OP_DATA_OUT(1), \
+ intel_spi_write_reg, \
+ HSFSTS_CTL_FCYCLE_WRSR), \
/* Normal read */ \
INTEL_SPI_MEM_OP(SPI_MEM_OP_CMD(SPINOR_OP_READ, 1), \
INTEL_SPI_OP_ADDR(3), \
--
2.35.1
next prev parent reply other threads:[~2022-10-25 6:46 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-10-25 6:46 [PATCH 0/4] spi: intel: Add support for SFDP opcode Mika Westerberg
2022-10-25 6:46 ` Mika Westerberg [this message]
2022-10-25 6:46 ` [PATCH 2/4] spi: intel: Implement adjust_op_size() Mika Westerberg
2022-10-28 6:12 ` Gole, Dhruva
2022-10-28 6:25 ` Mika Westerberg
2022-10-28 6:46 ` Gole, Dhruva
2022-10-28 7:05 ` Mika Westerberg
2022-10-25 6:46 ` [PATCH 3/4] spi: intel: Take possible chip address into account in intel_spi_read/write_reg() Mika Westerberg
2022-10-25 6:46 ` [PATCH 4/4] spi: intel: Add support for SFDP opcode Mika Westerberg
2022-11-22 12:30 ` [PATCH 0/4] " Mika Westerberg
2022-11-22 14:57 ` Mark Brown
2022-11-25 21:55 ` Mark Brown
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