1 // SPDX-License-Identifier: GPL-2.0-only
6  * Uses the generic 7990.c LANCE code.
30 /* We have 32K of RAM for the init block and buffers. This places
31  * an upper limit on the number of buffers we can use. NetBSD uses 8 Rx
37 #include "7990.h"                                 /* use generic LANCE code */
42 	unsigned long ram;  member
47  * plus board-specific init, open and close actions.
48  * Oh, and we need to tell the generic code how to read and write LANCE registers...
70 /* Initialise the one and only on-board 7990 */
83 		return ERR_PTR(-ENODEV);  in mvme147lance_probe()
88 		return ERR_PTR(-ENOMEM);  in mvme147lance_probe()
91 	dev->base_addr = (unsigned long)MVME147_LANCE_BASE;  in mvme147lance_probe()
92 	dev->netdev_ops = &lance_netdev_ops;  in mvme147lance_probe()
93 	dev->dma = 0;  in mvme147lance_probe()
109 	lp->ram = __get_dma_pages(GFP_ATOMIC, 3);	/* 32K */  in mvme147lance_probe()
110 	if (!lp->ram) {  in mvme147lance_probe()
111 		printk("%s: No memory for LANCE buffers\n", dev->name);  in mvme147lance_probe()
113 		return ERR_PTR(-ENOMEM);  in mvme147lance_probe()
116 	lp->lance.name = name;  in mvme147lance_probe()
117 	lp->lance.base = dev->base_addr;  in mvme147lance_probe()
118 	lp->lance.init_block = (struct lance_init_block *)(lp->ram); /* CPU addr */  in mvme147lance_probe()
119 …lp->lance.lance_init_block = (struct lance_init_block *)(lp->ram);                 /* LANCE addr o…  in mvme147lance_probe()
120 	lp->lance.busmaster_regval = LE_C3_BSWP;        /* we're bigendian */  in mvme147lance_probe()
121 	lp->lance.irq = MVME147_LANCE_IRQ;  in mvme147lance_probe()
122 	lp->lance.writerap = (writerap_t)m147lance_writerap;  in mvme147lance_probe()
123 	lp->lance.writerdp = (writerdp_t)m147lance_writerdp;  in mvme147lance_probe()
124 	lp->lance.readrdp = (readrdp_t)m147lance_readrdp;  in mvme147lance_probe()
125 	lp->lance.lance_log_rx_bufs = LANCE_LOG_RX_BUFFERS;  in mvme147lance_probe()
126 	lp->lance.lance_log_tx_bufs = LANCE_LOG_TX_BUFFERS;  in mvme147lance_probe()
127 	lp->lance.rx_ring_mod_mask = RX_RING_MOD_MASK;  in mvme147lance_probe()
128 	lp->lance.tx_ring_mod_mask = TX_RING_MOD_MASK;  in mvme147lance_probe()
132 		free_pages(lp->ram, 3);  in mvme147lance_probe()
138 		    dev->base_addr, MVME147_LANCE_IRQ, dev->dev_addr);  in mvme147lance_probe()
145 	out_be16(lp->base + LANCE_RAP, value);  in m147lance_writerap()
150 	out_be16(lp->base + LANCE_RDP, value);  in m147lance_writerdp()
155 	return in_be16(lp->base + LANCE_RDP);  in m147lance_readrdp()
162 	status = lance_open(dev);                 /* call generic lance open code */  in m147lance_open()
166 	m147_pcc->lan_cntrl = 0;       /* clear the interrupts (if any) */  in m147lance_open()
167 	m147_pcc->lan_cntrl = 0x08 | 0x04;     /* Enable irq 4 */  in m147lance_open()
175 	m147_pcc->lan_cntrl = 0x0; /* disable interrupts */  in m147lance_close()
195 	free_pages(lp->ram, 3);  in m147lance_exit()