add ax88772_rst

hc

2024-05-10 9999e48639b3cecb08ffb37358bcba3b48161b29

 kernel/drivers/net/ethernet/natsemi/jazzsonic.c
..
..
@@ -36,9 +36,9 @@
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 #include <linux/platform_device.h>
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 #include <linux/dma-mapping.h>
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 #include <linux/slab.h>
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+#include <linux/pgtable.h>
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 #include <asm/bootinfo.h>
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-#include <asm/pgtable.h>
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 #include <asm/io.h>
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 #include <asm/dma.h>
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 #include <asm/jazz.h>
..
..
@@ -147,38 +147,11 @@
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 		dev->dev_addr[i*2+1] = val >> 8;
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 	}
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-	err = -ENOMEM;
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-
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-	/* Initialize the device structure. */
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-
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 	lp->dma_bitmode = SONIC_BITMODE32;
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-	/* Allocate the entire chunk of memory for the descriptors.
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-           Note that this cannot cross a 64K boundary. */
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-	lp->descriptors = dma_alloc_coherent(lp->device,
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-					     SIZEOF_SONIC_DESC *
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-					     SONIC_BUS_SCALE(lp->dma_bitmode),
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-					     &lp->descriptors_laddr,
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-					     GFP_KERNEL);
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-	if (lp->descriptors == NULL)
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+	err = sonic_alloc_descriptors(dev);
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+	if (err)
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 		goto out;
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-
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-	/* Now set up the pointers to point to the appropriate places */
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-	lp->cda = lp->descriptors;
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-	lp->tda = lp->cda + (SIZEOF_SONIC_CDA
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-	                     * SONIC_BUS_SCALE(lp->dma_bitmode));
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-	lp->rda = lp->tda + (SIZEOF_SONIC_TD * SONIC_NUM_TDS
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-	                     * SONIC_BUS_SCALE(lp->dma_bitmode));
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-	lp->rra = lp->rda + (SIZEOF_SONIC_RD * SONIC_NUM_RDS
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-	                     * SONIC_BUS_SCALE(lp->dma_bitmode));
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-
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-	lp->cda_laddr = lp->descriptors_laddr;
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-	lp->tda_laddr = lp->cda_laddr + (SIZEOF_SONIC_CDA
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-	                     * SONIC_BUS_SCALE(lp->dma_bitmode));
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-	lp->rda_laddr = lp->tda_laddr + (SIZEOF_SONIC_TD * SONIC_NUM_TDS
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-	                     * SONIC_BUS_SCALE(lp->dma_bitmode));
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-	lp->rra_laddr = lp->rda_laddr + (SIZEOF_SONIC_RD * SONIC_NUM_RDS
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-	                     * SONIC_BUS_SCALE(lp->dma_bitmode));
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 	dev->netdev_ops = &sonic_netdev_ops;
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 	dev->watchdog_timeo = TX_TIMEOUT;