diff options
| author | Stefan Roese <sr@denx.de> | 2017-03-23 16:01:59 (GMT) |
|---|---|---|
| committer | Stefan Roese <sr@denx.de> | 2017-05-09 11:38:17 (GMT) |
| commit | 2f720f195792bb29289827ef9512e0366a81933b (patch) | |
| tree | f31670da4ca55a0ecd620356774e9c296df911c2 /drivers/net/mvpp2.c | |
| parent | 2f92629112a1055ed37f8b05dfcf00c3f1875503 (diff) | |
| download | u-boot-2f720f195792bb29289827ef9512e0366a81933b.tar.xz | |
net: mvpp2: Add remove function that is called before the OS is started
This patch adds a remove function to the mvpp2 ethernet driver which is
called before the OS is started, doing:
- Allocate the used buffers back from the buffer manager
- Stop the BM activity
Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Stefan Chulski <stefanc@marvell.com>
Cc: Kostya Porotchkin <kostap@marvell.com>
Cc: Nadav Haklai <nadavh@marvell.com>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>
Diffstat (limited to 'drivers/net/mvpp2.c')
| -rw-r--r-- | drivers/net/mvpp2.c | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/drivers/net/mvpp2.c b/drivers/net/mvpp2.c index 8ffe6c8..08adb68 100644 --- a/drivers/net/mvpp2.c +++ b/drivers/net/mvpp2.c @@ -2618,6 +2618,13 @@ static void mvpp2_bm_pool_bufsize_set(struct mvpp2 *priv, static void mvpp2_bm_bufs_free(struct udevice *dev, struct mvpp2 *priv, struct mvpp2_bm_pool *bm_pool) { + int i; + + for (i = 0; i < bm_pool->buf_num; i++) { + /* Allocate buffer back from the buffer manager */ + mvpp2_read(priv, MVPP2_BM_PHY_ALLOC_REG(bm_pool->id)); + } + bm_pool->buf_num = 0; } @@ -5501,6 +5508,21 @@ static int mvpp2_probe(struct udevice *dev) return 0; } +/* + * Empty BM pool and stop its activity before the OS is started + */ +static int mvpp2_remove(struct udevice *dev) +{ + struct mvpp2_port *port = dev_get_priv(dev); + struct mvpp2 *priv = port->priv; + int i; + + for (i = 0; i < MVPP2_BM_POOLS_NUM; i++) + mvpp2_bm_pool_destroy(dev, priv, &priv->bm_pools[i]); + + return 0; +} + static const struct eth_ops mvpp2_ops = { .start = mvpp2_start, .send = mvpp2_send, @@ -5512,9 +5534,11 @@ static struct driver mvpp2_driver = { .name = "mvpp2", .id = UCLASS_ETH, .probe = mvpp2_probe, + .remove = mvpp2_remove, .ops = &mvpp2_ops, .priv_auto_alloc_size = sizeof(struct mvpp2_port), .platdata_auto_alloc_size = sizeof(struct eth_pdata), + .flags = DM_FLAG_ACTIVE_DMA, }; /* |