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path: root/drivers/net/sh_eth.c
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Diffstat (limited to 'drivers/net/sh_eth.c')
-rw-r--r--drivers/net/sh_eth.c102
1 files changed, 53 insertions, 49 deletions
diff --git a/drivers/net/sh_eth.c b/drivers/net/sh_eth.c
index 451c33e..4bf493e 100644
--- a/drivers/net/sh_eth.c
+++ b/drivers/net/sh_eth.c
@@ -2,9 +2,9 @@
* sh_eth.c - Driver for Renesas ethernet controler.
*
* Copyright (C) 2008, 2011 Renesas Solutions Corp.
- * Copyright (c) 2008, 2011 Nobuhiro Iwamatsu
+ * Copyright (c) 2008, 2011, 2014 2014 Nobuhiro Iwamatsu
* Copyright (c) 2007 Carlos Munoz <carlos@kenati.com>
- * Copyright (C) 2013 Renesas Electronics Corporation
+ * Copyright (C) 2013, 2014 Renesas Electronics Corporation
*
* SPDX-License-Identifier: GPL-2.0+
*/
@@ -83,6 +83,8 @@ int sh_eth_send(struct eth_device *dev, void *packet, int len)
else
port_info->tx_desc_cur->td0 = TD_TACT | TD_TFP;
+ flush_cache_wback(port_info->tx_desc_cur, sizeof(struct tx_desc_s));
+
/* Restart the transmitter if disabled */
if (!(sh_eth_read(eth, EDTRR) & EDTRR_TRNS))
sh_eth_write(eth, EDTRR_TRNS, EDTRR);
@@ -133,6 +135,10 @@ int sh_eth_recv(struct eth_device *dev)
port_info->rx_desc_cur->rd0 = RD_RACT | RD_RDLE;
else
port_info->rx_desc_cur->rd0 = RD_RACT;
+
+ flush_cache_wback(port_info->rx_desc_cur,
+ sizeof(struct rx_desc_s));
+
/* Point to the next descriptor */
port_info->rx_desc_cur++;
if (port_info->rx_desc_cur >=
@@ -181,27 +187,27 @@ static int sh_eth_reset(struct sh_eth_dev *eth)
static int sh_eth_tx_desc_init(struct sh_eth_dev *eth)
{
int port = eth->port, i, ret = 0;
- u32 tmp_addr;
+ u32 alloc_desc_size = NUM_TX_DESC * sizeof(struct tx_desc_s);
struct sh_eth_info *port_info = &eth->port_info[port];
struct tx_desc_s *cur_tx_desc;
/*
- * Allocate tx descriptors. They must be TX_DESC_SIZE bytes aligned
+ * Allocate rx descriptors. They must be aligned to size of struct
+ * tx_desc_s.
*/
- port_info->tx_desc_malloc = malloc(NUM_TX_DESC *
- sizeof(struct tx_desc_s) +
- TX_DESC_SIZE - 1);
- if (!port_info->tx_desc_malloc) {
- printf(SHETHER_NAME ": malloc failed\n");
+ port_info->tx_desc_alloc =
+ memalign(sizeof(struct tx_desc_s), alloc_desc_size);
+ if (!port_info->tx_desc_alloc) {
+ printf(SHETHER_NAME ": memalign failed\n");
ret = -ENOMEM;
goto err;
}
- tmp_addr = (u32) (((int)port_info->tx_desc_malloc + TX_DESC_SIZE - 1) &
- ~(TX_DESC_SIZE - 1));
- flush_cache_wback(tmp_addr, NUM_TX_DESC * sizeof(struct tx_desc_s));
+ flush_cache_wback((u32)port_info->tx_desc_alloc, alloc_desc_size);
+
/* Make sure we use a P2 address (non-cacheable) */
- port_info->tx_desc_base = (struct tx_desc_s *)ADDR_TO_P2(tmp_addr);
+ port_info->tx_desc_base =
+ (struct tx_desc_s *)ADDR_TO_P2((u32)port_info->tx_desc_alloc);
port_info->tx_desc_cur = port_info->tx_desc_base;
/* Initialize all descriptors */
@@ -232,47 +238,44 @@ err:
static int sh_eth_rx_desc_init(struct sh_eth_dev *eth)
{
int port = eth->port, i , ret = 0;
+ u32 alloc_desc_size = NUM_RX_DESC * sizeof(struct rx_desc_s);
struct sh_eth_info *port_info = &eth->port_info[port];
struct rx_desc_s *cur_rx_desc;
- u32 tmp_addr;
u8 *rx_buf;
/*
- * Allocate rx descriptors. They must be RX_DESC_SIZE bytes aligned
+ * Allocate rx descriptors. They must be aligned to size of struct
+ * rx_desc_s.
*/
- port_info->rx_desc_malloc = malloc(NUM_RX_DESC *
- sizeof(struct rx_desc_s) +
- RX_DESC_SIZE - 1);
- if (!port_info->rx_desc_malloc) {
- printf(SHETHER_NAME ": malloc failed\n");
+ port_info->rx_desc_alloc =
+ memalign(sizeof(struct rx_desc_s), alloc_desc_size);
+ if (!port_info->rx_desc_alloc) {
+ printf(SHETHER_NAME ": memalign failed\n");
ret = -ENOMEM;
goto err;
}
- tmp_addr = (u32) (((int)port_info->rx_desc_malloc + RX_DESC_SIZE - 1) &
- ~(RX_DESC_SIZE - 1));
- flush_cache_wback(tmp_addr, NUM_RX_DESC * sizeof(struct rx_desc_s));
+ flush_cache_wback(port_info->rx_desc_alloc, alloc_desc_size);
+
/* Make sure we use a P2 address (non-cacheable) */
- port_info->rx_desc_base = (struct rx_desc_s *)ADDR_TO_P2(tmp_addr);
+ port_info->rx_desc_base =
+ (struct rx_desc_s *)ADDR_TO_P2((u32)port_info->rx_desc_alloc);
port_info->rx_desc_cur = port_info->rx_desc_base;
/*
- * Allocate rx data buffers. They must be 32 bytes aligned and in
- * P2 area
+ * Allocate rx data buffers. They must be RX_BUF_ALIGNE_SIZE bytes
+ * aligned and in P2 area.
*/
- port_info->rx_buf_malloc = malloc(
- NUM_RX_DESC * MAX_BUF_SIZE + RX_BUF_ALIGNE_SIZE - 1);
- if (!port_info->rx_buf_malloc) {
- printf(SHETHER_NAME ": malloc failed\n");
+ port_info->rx_buf_alloc =
+ memalign(RX_BUF_ALIGNE_SIZE, NUM_RX_DESC * MAX_BUF_SIZE);
+ if (!port_info->rx_buf_alloc) {
+ printf(SHETHER_NAME ": alloc failed\n");
ret = -ENOMEM;
- goto err_buf_malloc;
+ goto err_buf_alloc;
}
- tmp_addr = (u32)(((int)port_info->rx_buf_malloc
- + (RX_BUF_ALIGNE_SIZE - 1)) &
- ~(RX_BUF_ALIGNE_SIZE - 1));
- port_info->rx_buf_base = (u8 *)ADDR_TO_P2(tmp_addr);
+ port_info->rx_buf_base = (u8 *)ADDR_TO_P2((u32)port_info->rx_buf_alloc);
/* Initialize all descriptors */
for (cur_rx_desc = port_info->rx_desc_base,
@@ -297,9 +300,9 @@ static int sh_eth_rx_desc_init(struct sh_eth_dev *eth)
return ret;
-err_buf_malloc:
- free(port_info->rx_desc_malloc);
- port_info->rx_desc_malloc = NULL;
+err_buf_alloc:
+ free(port_info->rx_desc_alloc);
+ port_info->rx_desc_alloc = NULL;
err:
return ret;
@@ -310,9 +313,9 @@ static void sh_eth_tx_desc_free(struct sh_eth_dev *eth)
int port = eth->port;
struct sh_eth_info *port_info = &eth->port_info[port];
- if (port_info->tx_desc_malloc) {
- free(port_info->tx_desc_malloc);
- port_info->tx_desc_malloc = NULL;
+ if (port_info->tx_desc_alloc) {
+ free(port_info->tx_desc_alloc);
+ port_info->tx_desc_alloc = NULL;
}
}
@@ -321,14 +324,14 @@ static void sh_eth_rx_desc_free(struct sh_eth_dev *eth)
int port = eth->port;
struct sh_eth_info *port_info = &eth->port_info[port];
- if (port_info->rx_desc_malloc) {
- free(port_info->rx_desc_malloc);
- port_info->rx_desc_malloc = NULL;
+ if (port_info->rx_desc_alloc) {
+ free(port_info->rx_desc_alloc);
+ port_info->rx_desc_alloc = NULL;
}
- if (port_info->rx_buf_malloc) {
- free(port_info->rx_buf_malloc);
- port_info->rx_buf_malloc = NULL;
+ if (port_info->rx_buf_alloc) {
+ free(port_info->rx_buf_alloc);
+ port_info->rx_buf_alloc = NULL;
}
}
@@ -414,7 +417,7 @@ static int sh_eth_config(struct sh_eth_dev *eth, bd_t *bd)
#if defined(CONFIG_CPU_SH7734) || defined(CONFIG_R8A7740)
sh_eth_write(eth, CONFIG_SH_ETHER_SH7734_MII, RMII_MII);
#elif defined(CONFIG_R8A7790) || defined(CONFIG_R8A7791) || \
- defined(CONFIG_R8A7794)
+ defined(CONFIG_R8A7793) || defined(CONFIG_R8A7794)
sh_eth_write(eth, sh_eth_read(eth, RMIIMR) | 0x1, RMIIMR);
#endif
/* Configure phy */
@@ -440,7 +443,8 @@ static int sh_eth_config(struct sh_eth_dev *eth, bd_t *bd)
#elif defined(CONFIG_CPU_SH7757) || defined(CONFIG_CPU_SH7752)
sh_eth_write(eth, 1, RTRATE);
#elif defined(CONFIG_CPU_SH7724) || defined(CONFIG_R8A7790) || \
- defined(CONFIG_R8A7791) || defined(CONFIG_R8A7794)
+ defined(CONFIG_R8A7791) || defined(CONFIG_R8A7793) || \
+ defined(CONFIG_R8A7794)
val = ECMR_RTM;
#endif
} else if (phy->speed == 10) {
generated by cgit v1.1 at 2024-10-31 09:30:25 +0000