Add support for the AlleyCat5 SoC. This lacks the mbus from the other users of the mvneta.c driver so a new compatible string is needed to allow for a different window configuration.
Signed-off-by: Chris Packham judge.packham@gmail.com ---
drivers/net/Kconfig | 2 +- drivers/net/mvneta.c | 66 ++++++++++++++++++++++++++++++++++++++++++-- 2 files changed, 64 insertions(+), 4 deletions(-)
diff --git a/drivers/net/Kconfig b/drivers/net/Kconfig index 6bbbadc5ee..8df3dce6df 100644 --- a/drivers/net/Kconfig +++ b/drivers/net/Kconfig @@ -448,7 +448,7 @@ config MVGBE
config MVNETA bool "Marvell Armada XP/385/3700 network interface support" - depends on ARMADA_XP || ARMADA_38X || ARMADA_3700 + depends on ARMADA_XP || ARMADA_38X || ARMADA_3700 || ALLEYCAT_5 select PHYLIB select DM_MDIO help diff --git a/drivers/net/mvneta.c b/drivers/net/mvneta.c index d2c42c4396..07919d6d35 100644 --- a/drivers/net/mvneta.c +++ b/drivers/net/mvneta.c @@ -91,6 +91,8 @@ DECLARE_GLOBAL_DATA_PTR; #define MVNETA_WIN_SIZE_MASK (0xffff0000) #define MVNETA_BASE_ADDR_ENABLE 0x2290 #define MVNETA_BASE_ADDR_ENABLE_BIT 0x1 +#define MVNETA_AC5_CNM_DDR_TARGET 0x2 +#define MVNETA_AC5_CNM_DDR_ATTR 0xb #define MVNETA_PORT_ACCESS_PROTECT 0x2294 #define MVNETA_PORT_ACCESS_PROTECT_WIN0_RW 0x3 #define MVNETA_PORT_CONFIG 0x2400 @@ -282,6 +284,8 @@ struct mvneta_port { struct gpio_desc phy_reset_gpio; struct gpio_desc sfp_tx_disable_gpio; #endif + + uintptr_t dma_base; /* base address for DMA address decoding */ };
/* The mvneta_tx_desc and mvneta_rx_desc structures describe the @@ -513,10 +517,19 @@ static void mvneta_rxq_desc_num_update(struct mvneta_port *pp, static struct mvneta_rx_desc * mvneta_rxq_next_desc_get(struct mvneta_rx_queue *rxq) { + struct mvneta_rx_desc *curr; int rx_desc = rxq->next_desc_to_proc;
+ /* validate RX descriptor */ + curr = rxq->descs + rx_desc; + if (curr->data_size == 0) { + /* do it to read real descriptor next time */ + DSB; + return NULL; + } + rxq->next_desc_to_proc = MVNETA_QUEUE_NEXT_DESC(rxq, rx_desc); - return rxq->descs + rx_desc; + return curr; }
/* Tx descriptors helper methods */ @@ -1343,6 +1356,29 @@ static void mvneta_conf_mbus_windows(struct mvneta_port *pp) mvreg_write(pp, MVNETA_BASE_ADDR_ENABLE, win_enable); }
+static void mvneta_conf_ac5_cnm_xbar_windows(struct mvneta_port *pp) +{ + int i; + + /* Clear all windows */ + for (i = 0; i < 6; i++) { + mvreg_write(pp, MVNETA_WIN_BASE(i), 0); + mvreg_write(pp, MVNETA_WIN_SIZE(i), 0); + + if (i < 4) + mvreg_write(pp, MVNETA_WIN_REMAP(i), 0); + } + + /* + * Setup window #0 base 0x0 to target XBAR port 2 (AMB2), attribute 0xb, size 4GB + * AMB2 address decoder remaps 0x0 to DDR 64 bit base address + */ + mvreg_write(pp, MVNETA_WIN_BASE(0), + (MVNETA_AC5_CNM_DDR_ATTR << 8) | MVNETA_AC5_CNM_DDR_TARGET); + mvreg_write(pp, MVNETA_WIN_SIZE(0), 0xffff0000); + mvreg_write(pp, MVNETA_BASE_ADDR_ENABLE, 0x3e); +} + /* Power up the port */ static int mvneta_port_power_up(struct mvneta_port *pp, int phy_mode) { @@ -1508,11 +1544,15 @@ static int mvneta_recv(struct udevice *dev, int flags, uchar **packetp) */ rx_desc = mvneta_rxq_next_desc_get(rxq);
+ if (!rx_desc) + return 0; + rx_status = rx_desc->status; if (!mvneta_rxq_desc_is_first_last(rx_status) || (rx_status & MVNETA_RXD_ERR_SUMMARY)) { mvneta_rx_error(pp, rx_desc); - /* leave the descriptor untouched */ + /* invalidate the descriptor */ + rx_desc->data_size = 0; return -EIO; }
@@ -1525,13 +1565,15 @@ static int mvneta_recv(struct udevice *dev, int flags, uchar **packetp) * No cache invalidation needed here, since the rx_buffer's are * located in a uncached memory region */ - *packetp = data; + *packetp = data + pp->dma_base;
/* * Only mark one descriptor as free * since only one was processed */ mvneta_rxq_desc_num_update(pp, rxq, 1, 1); + /* invalidate the descriptor */ + rx_desc->data_size = 0; }
return rx_bytes; @@ -1544,6 +1586,11 @@ static int mvneta_probe(struct udevice *dev) struct ofnode_phandle_args sfp_args; #endif void *bd_space; + void *blob = (void *)gd->fdt_blob; + int node = dev_of_offset(dev); + const int *cell; + int len; +
/* * Allocate buffer area for descs and rx_buffers. This is only @@ -1577,9 +1624,21 @@ static int mvneta_probe(struct udevice *dev) /* Configure MBUS address windows */ if (device_is_compatible(dev, "marvell,armada-3700-neta")) mvneta_bypass_mbus_windows(pp); + else if (device_is_compatible(dev, "marvell,armada-ac5-neta")) + mvneta_conf_ac5_cnm_xbar_windows(pp); else mvneta_conf_mbus_windows(pp);
+ /* fetch dma ranges property */ + cell = fdt_getprop(blob, node, "dma-ranges", &len); + if (cell && len >= 4 * sizeof(int)) { + /* RAZA - TODO do that in loop by address-cells size */ + pp->dma_base = fdt32_to_cpu(cell[1]); + pp->dma_base = (pp->dma_base << 32) | fdt32_to_cpu(cell[2]); + } else { + pp->dma_base = 0; + } + #if CONFIG_IS_ENABLED(DM_GPIO) if (!dev_read_phandle_with_args(dev, "sfp", NULL, 0, 0, &sfp_args) && ofnode_is_enabled(sfp_args.node)) @@ -1620,6 +1679,7 @@ static const struct eth_ops mvneta_ops = {
static const struct udevice_id mvneta_ids[] = { { .compatible = "marvell,armada-370-neta" }, + { .compatible = "marvell,armada-ac5-neta" }, { .compatible = "marvell,armada-xp-neta" }, { .compatible = "marvell,armada-3700-neta" }, { }