net: pch_gbe: Use dm_pci_map_bar to discover MMIO base

[u-boot] / drivers / net / sun8i_emac.c

diff --git a/drivers/net/sun8i_emac.c b/drivers/net/sun8i_emac.c
index 7c088c311d1d2b166fc5ab43198400f2b5bb05f7..4c149e1bdf2c1aa78e8680c0a8b119bd4b72a4b2 100644 (file)
--- a/drivers/net/sun8i_emac.c
+++ b/drivers/net/sun8i_emac.c
@@ -32,7 +32,14 @@
 
 #define CONFIG_TX_DESCR_NUM    32
 #define CONFIG_RX_DESCR_NUM    32
-#define CONFIG_ETH_BUFSIZE     2024
+#define CONFIG_ETH_BUFSIZE     2048 /* Note must be dma aligned */
+
+/*
+ * The datasheet says that each descriptor can transfers up to 4096 bytes
+ * But later, the register documentation reduces that value to 2048,
+ * using 2048 cause strange behaviours and even BSP driver use 2047
+ */
+#define CONFIG_ETH_RXSIZE      2044 /* Note must fit in ETH_BUFSIZE */
 
 #define TX_TOTAL_BUFSIZE       (CONFIG_ETH_BUFSIZE * CONFIG_TX_DESCR_NUM)
 #define RX_TOTAL_BUFSIZE       (CONFIG_ETH_BUFSIZE * CONFIG_RX_DESCR_NUM)
@@ -324,7 +331,7 @@ static void rx_descs_init(struct emac_eth_dev *priv)
                desc_p->buf_addr = (uintptr_t)&rxbuffs[idx * CONFIG_ETH_BUFSIZE]
                        ;
                desc_p->next = (uintptr_t)&desc_table_p[idx + 1];
-               desc_p->st |= CONFIG_ETH_BUFSIZE;
+               desc_p->st |= CONFIG_ETH_RXSIZE;
                desc_p->status = BIT(31);
        }
 
@@ -506,7 +513,7 @@ static int _sun8i_eth_recv(struct emac_eth_dev *priv, uchar **packetp)
                                        roundup(data_end,
                                                ARCH_DMA_MINALIGN));
                if (good_packet) {
-                       if (length > CONFIG_ETH_BUFSIZE) {
+                       if (length > CONFIG_ETH_RXSIZE) {
                                printf("Received packet is too big (len=%d)\n",
                                       length);
                                return -EMSGSIZE;