diff options
Diffstat (limited to 'drivers/spi/renesas_rpc_spi.c')
| -rw-r--r-- | drivers/spi/renesas_rpc_spi.c | 23 |
1 files changed, 18 insertions, 5 deletions
diff --git a/drivers/spi/renesas_rpc_spi.c b/drivers/spi/renesas_rpc_spi.c index e6b602cf7b4..f1e6f9f4e01 100644 --- a/drivers/spi/renesas_rpc_spi.c +++ b/drivers/spi/renesas_rpc_spi.c @@ -145,6 +145,12 @@ #define RPC_PHYCNT_WBUF BIT(2) #define RPC_PHYCNT_MEM(v) (((v) & 0x3) << 0) +#define RPCIF_PHYOFFSET1 0x0080 /* R/W */ +#define RPCIF_PHYOFFSET1_DDRTMG(v) (((v) & 0x3) << 28) + +#define RPCIF_PHYOFFSET2 0x0084 /* R/W */ +#define RPCIF_PHYOFFSET2_OCTTMG(v) (((v) & 0x7) << 8) + #define RPC_PHYINT 0x0088 /* R/W */ #define RPC_PHYINT_RSTEN BIT(18) #define RPC_PHYINT_WPEN BIT(17) @@ -227,6 +233,12 @@ static int rpc_spi_claim_bus(struct udevice *dev, bool manual) struct udevice *bus = dev->parent; struct rpc_spi_priv *priv = dev_get_priv(bus); + setbits_le32(priv->regs + RPCIF_PHYOFFSET1, + RPCIF_PHYOFFSET1_DDRTMG(3)); + clrsetbits_le32(priv->regs + RPCIF_PHYOFFSET2, + RPCIF_PHYOFFSET2_OCTTMG(7), + RPCIF_PHYOFFSET2_OCTTMG(4)); + /* NOTE: The 0x260 are undocumented bits, but they must be set. */ writel(RPC_PHYCNT_CAL | rpc_spi_get_strobe_delay() | 0x260, priv->regs + RPC_PHYCNT); @@ -277,24 +289,24 @@ static int rpc_spi_mem_exec_op(struct spi_slave *spi, writel(RPC_DRCMR_CMD(op->cmd.opcode), priv->regs + RPC_DRCMR); smenr |= RPC_DRENR_CDE; - writel(0, priv->regs + RPC_DREAR); if (op->addr.nbytes == 4) { writel(RPC_DREAR_EAV(offset >> 25) | RPC_DREAR_EAC(1), priv->regs + RPC_DREAR); smenr |= RPC_DRENR_ADE(0xF); } else if (op->addr.nbytes == 3) { + writel(0, priv->regs + RPC_DREAR); smenr |= RPC_DRENR_ADE(0x7); } else { + writel(0, priv->regs + RPC_DREAR); smenr |= RPC_DRENR_ADE(0); } - writel(0, priv->regs + RPC_DRDMCR); - if (op->dummy.nbytes) { - writel(8 * op->dummy.nbytes - 1, priv->regs + RPC_DRDMCR); + if (op->dummy.nbytes) smenr |= RPC_DRENR_DME; - } + writel(8 * op->dummy.nbytes - 1, priv->regs + RPC_DRDMCR); writel(0, priv->regs + RPC_DROPR); + writel(0, priv->regs + RPC_DRDRENR); writel(smenr, priv->regs + RPC_DRENR); memcpy_fromio(din, (void *)(priv->extr + offset), op->data.nbytes); @@ -453,6 +465,7 @@ static const struct dm_spi_ops rpc_spi_ops = { static const struct udevice_id rpc_spi_ids[] = { { .compatible = "renesas,r7s72100-rpc-if" }, { .compatible = "renesas,rcar-gen3-rpc-if" }, + { .compatible = "renesas,rcar-gen4-rpc-if" }, { } }; |