openwrt/target/linux/bcm63xx/patches-4.14/001-4.16-02-bcm63xx_enet-use-platform-data-for-dma-channel-numbe.patch
Adrian Schmutzler e7bfda2c24 brcm63xx: rename target to bcm63xx
This change makes the names of Broadcom targets consistent by using
the common notation based on SoC/CPU ID (which is used internally
anyway), bcmXXXX instead of brcmXXXX.
This is even used for target TITLE in make menuconfig already,
only the short target name used brcm so far.

Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
2020-02-14 14:10:51 +01:00

73 lines
2.1 KiB
Diff

From b7d1d1f345bb3b25c360c1df812d98866e2ee7fb Mon Sep 17 00:00:00 2001
From: Jonas Gorski <jonas.gorski@gmail.com>
Date: Sat, 30 Sep 2017 13:50:03 +0200
Subject: [PATCH 2/4] bcm63xx_enet: use platform data for dma channel numbers
To reduce the reliance on device ids, pass the dma channel numbers to
the enet devices as platform data.
Signed-off-by: Jonas Gorski <jonas.gorski@gmail.com>
---
arch/mips/bcm63xx/dev-enet.c | 8 ++++++++
arch/mips/include/asm/mach-bcm63xx/bcm63xx_dev_enet.h | 4 ++++
drivers/net/ethernet/broadcom/bcm63xx_enet.c | 11 ++---------
3 files changed, 14 insertions(+), 9 deletions(-)
--- a/arch/mips/bcm63xx/dev-enet.c
+++ b/arch/mips/bcm63xx/dev-enet.c
@@ -265,6 +265,14 @@ int __init bcm63xx_enet_register(int uni
dpd->dma_chan_width = ENETDMA_CHAN_WIDTH;
}
+ if (unit == 0) {
+ dpd->rx_chan = 0;
+ dpd->tx_chan = 1;
+ } else {
+ dpd->rx_chan = 2;
+ dpd->tx_chan = 3;
+ }
+
ret = platform_device_register(pdev);
if (ret)
return ret;
--- a/arch/mips/include/asm/mach-bcm63xx/bcm63xx_dev_enet.h
+++ b/arch/mips/include/asm/mach-bcm63xx/bcm63xx_dev_enet.h
@@ -55,6 +55,10 @@ struct bcm63xx_enet_platform_data {
/* DMA descriptor shift */
unsigned int dma_desc_shift;
+
+ /* dma channel ids */
+ int rx_chan;
+ int tx_chan;
};
/*
--- a/drivers/net/ethernet/broadcom/bcm63xx_enet.c
+++ b/drivers/net/ethernet/broadcom/bcm63xx_enet.c
@@ -1756,15 +1756,6 @@ static int bcm_enet_probe(struct platfor
priv->irq_tx = res_irq_tx->start;
priv->mac_id = pdev->id;
- /* get rx & tx dma channel id for this mac */
- if (priv->mac_id == 0) {
- priv->rx_chan = 0;
- priv->tx_chan = 1;
- } else {
- priv->rx_chan = 2;
- priv->tx_chan = 3;
- }
-
priv->mac_clk = devm_clk_get(&pdev->dev, "enet");
if (IS_ERR(priv->mac_clk)) {
ret = PTR_ERR(priv->mac_clk);
@@ -1796,6 +1787,8 @@ static int bcm_enet_probe(struct platfor
priv->dma_chan_width = pd->dma_chan_width;
priv->dma_has_sram = pd->dma_has_sram;
priv->dma_desc_shift = pd->dma_desc_shift;
+ priv->rx_chan = pd->rx_chan;
+ priv->tx_chan = pd->tx_chan;
}
if (priv->mac_id == 0 && priv->has_phy && !priv->use_external_mii) {