-----Original Message----- From: U-Boot u-boot-bounces@lists.denx.de On Behalf Of Ramon Fried Sent: Tuesday, June 11, 2019 8:49 PM To: u-boot@lists.denx.de Cc: Joe Hershberger joe.hershberger@ni.com Subject: [U-Boot] [PATCH 5/6] net: macb: add dma_burst_length config
GEM support higher DMA burst writes/reads than the default (4). add configuration structure with dma burst length so it could be applied later to DMA configuration.
Signed-off-by: Ramon Fried rfried.dev@gmail.com
drivers/net/macb.c | 22 +++++++++++++++++++++- 1 file changed, 21 insertions(+), 1 deletion(-)
diff --git a/drivers/net/macb.c b/drivers/net/macb.c index ae8937bbb1..fb42172520 100644 --- a/drivers/net/macb.c +++ b/drivers/net/macb.c @@ -82,6 +82,7 @@ struct macb_dma_desc {
struct macb_device { void *regs;
unsigned int dma_burst_length;
unsigned int rx_tail; unsigned int tx_head;
@@ -118,6 +119,11 @@ struct macb_device { phy_interface_t phy_interface; #endif };
+struct macb_config {
- unsigned int dma_burst_length;
+};
#ifndef CONFIG_DM_ETH #define to_macb(_nd) container_of(_nd, struct macb_device, netdev) #endif @@ -1133,8 +1139,13 @@ static int macb_enable_clk(struct udevice *dev) } #endif
+static const struct macb_config default_gem_config = {
- .dma_burst_length = 16,
+};
static int macb_eth_probe(struct udevice *dev) {
- const struct macb_config *macb_config; struct eth_pdata *pdata = dev_get_platdata(dev); struct macb_device *macb = dev_get_priv(dev); const char *phy_mode;
@@ -1151,6 +1162,11 @@ static int macb_eth_probe(struct udevice *dev)
macb->regs = (void *)pdata->iobase;
- macb_config = (struct macb_config *)dev_get_driver_data(dev);
- if (!macb_config)
macb_config = &default_gem_config;- macb->dma_burst_length = macb_config->dma_burst_length;
#ifdef CONFIG_CLK ret = macb_enable_clk(dev); if (ret) @@ -1211,12 +1227,16 @@ static int macb_eth_ofdata_to_platdata(struct udevice *dev) return macb_late_eth_ofdata_to_platdata(dev); }
+static const struct macb_config sama5d4_config = {
- .dma_burst_length = 4,
+};
static const struct udevice_id macb_eth_ids[] = { { .compatible = "cdns,macb" }, { .compatible = "cdns,at91sam9260-macb" }, { .compatible = "atmel,sama5d2-gem" }, { .compatible = "atmel,sama5d3-gem" },
- { .compatible = "atmel,sama5d4-gem" },
- { .compatible = "atmel,sama5d4-gem", .data =
(ulong)&sama5d4_config }, { .compatible = "cdns,zynq-gem" }, { } }; -- 2.21.0
U-Boot mailing list U-Boot@lists.denx.de https://lists.denx.de/listinfo/u-boot
Reviewed-by: Anup Patel anup.patel@wdc.com Tested-by: Anup Patel anup.patel@wdc.com
Regards, Anup