diff options
| -rw-r--r-- | drivers/spi/cadence_ospi_versal.c | 19 | ||||
| -rw-r--r-- | drivers/spi/cadence_qspi.c | 9 | ||||
| -rw-r--r-- | drivers/spi/cadence_qspi.h | 3 |
3 files changed, 31 insertions, 0 deletions
diff --git a/drivers/spi/cadence_ospi_versal.c b/drivers/spi/cadence_ospi_versal.c index 816916de16d..fbeb0c6a85c 100644 --- a/drivers/spi/cadence_ospi_versal.c +++ b/drivers/spi/cadence_ospi_versal.c @@ -204,3 +204,22 @@ void cadence_qspi_apb_enable_linear_mode(bool enable) ~VERSAL_OSPI_LINEAR_MODE, VERSAL_AXI_MUX_SEL); } } + +int cadence_device_reset(struct udevice *bus) +{ + struct cadence_spi_priv *priv = dev_get_priv(bus); + u32 reg; + + reg = readl(priv->regbase + CQSPI_REG_CONFIG); + reg |= CQSPI_REG_CONFIG_RESET_CFG_FLD_MASK; + writel(reg, priv->regbase + CQSPI_REG_CONFIG); + + writel(reg & ~CQSPI_REG_CONFIG_RESET_PIN_FLD_MASK, priv->regbase + CQSPI_REG_CONFIG); + udelay(5); + writel(reg | CQSPI_REG_CONFIG_RESET_PIN_FLD_MASK, priv->regbase + CQSPI_REG_CONFIG); + udelay(150); + writel(reg & ~CQSPI_REG_CONFIG_RESET_PIN_FLD_MASK, priv->regbase + CQSPI_REG_CONFIG); + udelay(1200); + + return 0; +} diff --git a/drivers/spi/cadence_qspi.c b/drivers/spi/cadence_qspi.c index 623904ecdad..a78c00db4ff 100644 --- a/drivers/spi/cadence_qspi.c +++ b/drivers/spi/cadence_qspi.c @@ -33,6 +33,11 @@ __weak int cadence_qspi_apb_dma_read(struct cadence_spi_priv *priv, return 0; } +__weak int cadence_device_reset(struct udevice *dev) +{ + return 0; +} + __weak int cadence_qspi_flash_reset(struct udevice *dev) { return 0; @@ -251,6 +256,9 @@ static int cadence_spi_probe(struct udevice *bus) priv->wr_delay = 50 * DIV_ROUND_UP(NSEC_PER_SEC, priv->ref_clk_hz); + if (device_is_compatible(bus, "amd,versal2-ospi")) + return cadence_device_reset(bus); + /* Reset ospi flash device */ return cadence_qspi_flash_reset(bus); @@ -452,6 +460,7 @@ static const struct dm_spi_ops cadence_spi_ops = { static const struct udevice_id cadence_spi_ids[] = { { .compatible = "cdns,qspi-nor" }, { .compatible = "ti,am654-ospi" }, + { .compatible = "amd,versal2-ospi" }, { } }; diff --git a/drivers/spi/cadence_qspi.h b/drivers/spi/cadence_qspi.h index 1f9125cd239..731b6527cf3 100644 --- a/drivers/spi/cadence_qspi.h +++ b/drivers/spi/cadence_qspi.h @@ -45,6 +45,8 @@ #define CQSPI_REG_CONFIG_CLK_POL BIT(1) #define CQSPI_REG_CONFIG_CLK_PHA BIT(2) #define CQSPI_REG_CONFIG_PHY_ENABLE_MASK BIT(3) +#define CQSPI_REG_CONFIG_RESET_PIN_FLD_MASK BIT(5) +#define CQSPI_REG_CONFIG_RESET_CFG_FLD_MASK BIT(6) #define CQSPI_REG_CONFIG_DIRECT BIT(7) #define CQSPI_REG_CONFIG_DECODE BIT(9) #define CQSPI_REG_CONFIG_ENBL_DMA BIT(15) @@ -310,5 +312,6 @@ int cadence_qspi_apb_exec_flash_cmd(void *reg_base, unsigned int reg); int cadence_qspi_flash_reset(struct udevice *dev); ofnode cadence_qspi_get_subnode(struct udevice *dev); void cadence_qspi_apb_enable_linear_mode(bool enable); +int cadence_device_reset(struct udevice *dev); #endif /* __CADENCE_QSPI_H__ */ |