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net: ftgmac100: Add support for the Aspeed SoC

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The Faraday ftgmac100 MAC controllers as found on the Aspeed SoCs have
some slight differences in the HW interface (End-Of-Rx/Tx-Ring bits).

Signed-off-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Joel Stanley <joel@jms.id.au>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>
This commit is contained in:
Cédric Le Goater 2018-10-29 07:06:38 +01:00 committed by Joe Hershberger
parent 64ae823417
commit e6ddacc2d0
2 changed files with 35 additions and 4 deletions
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8
configs/evb-ast2500_defconfig
View file

@ -25,3 +25,11 @@ CONFIG_SYS_NS16550=y
CONFIG_SYSRESET=y
CONFIG_TIMER=y
CONFIG_WDT=y
CONFIG_NETDEVICES=y
CONFIG_PHY=y
CONFIG_DM_ETH=y
CONFIG_FTGMAC100=y
CONFIG_PHY_REALTEK=y
CONFIG_CMD_PING=y
CONFIG_CMD_DHCP=y
CONFIG_CMD_MII=y

31
drivers/net/ftgmac100.c
View file

@ -43,6 +43,14 @@
*/
#define MDC_CYCTHR 0x34
/*
* ftgmac100 model variants
*/
enum ftgmac100_model {
FTGMAC100_MODEL_FARADAY,
FTGMAC100_MODEL_ASPEED,
};
/**
* struct ftgmac100_data - private data for the FTGMAC100 driver
*
@ -57,6 +65,8 @@
* @phy_mode: The mode of the PHY interface (rgmii, rmii, ...)
* @max_speed: Maximum speed of Ethernet connection supported by MAC
* @clks: The bulk of clocks assigned to the device in the DT
* @rxdes0_edorr_mask: The bit number identifying the end of the RX ring buffer
* @txdes0_edotr_mask: The bit number identifying the end of the TX ring buffer
*/
struct ftgmac100_data {
struct ftgmac100 *iobase;
@ -73,6 +83,10 @@ struct ftgmac100_data {
u32 max_speed;
struct clk_bulk clks;
/* End of RX/TX ring buffer bits. Depend on model */
u32 rxdes0_edorr_mask;
u32 txdes0_edotr_mask;
};
/*
@ -293,7 +307,7 @@ static int ftgmac100_start(struct udevice *dev)
priv->txdes[i].txdes3 = 0;
priv->txdes[i].txdes0 = 0;
}
priv->txdes[PKTBUFSTX - 1].txdes0 = FTGMAC100_TXDES0_EDOTR;
priv->txdes[PKTBUFSTX - 1].txdes0 = priv->txdes0_edotr_mask;
start = (ulong)&priv->txdes[0];
end = start + roundup(sizeof(priv->txdes), ARCH_DMA_MINALIGN);
@ -303,7 +317,7 @@ static int ftgmac100_start(struct udevice *dev)
priv->rxdes[i].rxdes3 = (unsigned int)net_rx_packets[i];
priv->rxdes[i].rxdes0 = 0;
}
priv->rxdes[PKTBUFSRX - 1].rxdes0 = FTGMAC100_RXDES0_EDORR;
priv->rxdes[PKTBUFSRX - 1].rxdes0 = priv->rxdes0_edorr_mask;
start = (ulong)&priv->rxdes[0];
end = start + roundup(sizeof(priv->rxdes), ARCH_DMA_MINALIGN);
@ -456,7 +470,7 @@ static int ftgmac100_send(struct udevice *dev, void *packet, int length)
flush_dcache_range(data_start, data_end);
/* Only one segment on TXBUF */
curr_des->txdes0 &= FTGMAC100_TXDES0_EDOTR;
curr_des->txdes0 &= priv->txdes0_edotr_mask;
curr_des->txdes0 |= FTGMAC100_TXDES0_FTS |
FTGMAC100_TXDES0_LTS |
FTGMAC100_TXDES0_TXBUF_SIZE(length) |
@ -508,6 +522,14 @@ static int ftgmac100_ofdata_to_platdata(struct udevice *dev)
pdata->max_speed = dev_read_u32_default(dev, "max-speed", 0);
if (dev_get_driver_data(dev) == FTGMAC100_MODEL_ASPEED) {
priv->rxdes0_edorr_mask = BIT(30);
priv->txdes0_edotr_mask = BIT(30);
} else {
priv->rxdes0_edorr_mask = BIT(15);
priv->txdes0_edotr_mask = BIT(15);
}
return clk_get_bulk(dev, &priv->clks);
}
@ -567,7 +589,8 @@ static const struct eth_ops ftgmac100_ops = {
};
static const struct udevice_id ftgmac100_ids[] = {
{ .compatible = "faraday,ftgmac100" },
{ .compatible = "faraday,ftgmac100", .data = FTGMAC100_MODEL_FARADAY },
{ .compatible = "aspeed,ast2500-mac", .data = FTGMAC100_MODEL_ASPEED },
{ }
};