diff mbox series

[v2,net-next,9/9] net: korina: Make driver COMPILE_TESTable

Message ID 20210414152946.12517-10-tsbogend@alpha.franken.de
State Superseded
Headers show
Series [v2,net-next,1/9] net: korina: Fix MDIO functions | expand

Commit Message

Thomas Bogendoerfer April 14, 2021, 3:29 p.m. UTC 
Move structs/defines for ethernet/dma register into driver, since they
are only used for this driver and remove any MIPS specific includes.
This makes it possible to COMPILE_TEST the driver.

Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
---
 drivers/net/ethernet/Kconfig  |   2 +-
 drivers/net/ethernet/korina.c | 249 ++++++++++++++++++++++++++++++++--
 2 files changed, 239 insertions(+), 12 deletions(-)

Comments

kernel test robot April 15, 2021, 2:48 a.m. UTC | #1 
Hi Thomas,

I love your patch! Yet something to improve:

[auto build test ERROR on net-next/master]

url:    https://github.com/0day-ci/linux/commits/Thomas-Bogendoerfer/net-Korina-improvements/20210414-233326
base:   https://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next.git 5871d0c6b8ea805916c3135d0c53b095315bc674
config: nios2-allyesconfig (attached as .config)
compiler: nios2-linux-gcc (GCC) 9.3.0
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # https://github.com/0day-ci/linux/commit/a7d955bacb53b068d30f7527c6bafaf4ca2419e7
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review Thomas-Bogendoerfer/net-Korina-improvements/20210414-233326
        git checkout a7d955bacb53b068d30f7527c6bafaf4ca2419e7
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross W=1 ARCH=nios2 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>

All errors (new ones prefixed by >>):

   drivers/net/ethernet/korina.c: In function 'korina_probe':
>> drivers/net/ethernet/korina.c:1303:14: error: too few arguments to function 'of_get_mac_address'

    1303 |   mac_addr = of_get_mac_address(pdev->dev.of_node);
         |              ^~~~~~~~~~~~~~~~~~
   In file included from drivers/net/ethernet/korina.c:46:
   include/linux/of_net.h:16:12: note: declared here
      16 | extern int of_get_mac_address(struct device_node *np, u8 *mac);
         |            ^~~~~~~~~~~~~~~~~~


vim +/of_get_mac_address +1303 drivers/net/ethernet/korina.c

52b031ff3987a0 drivers/net/korina.c          Alexander Beregalov 2009-04-15  1283  
ef11291bcd5f96 drivers/net/korina.c          Florian Fainelli    2008-03-19  1284  static int korina_probe(struct platform_device *pdev)
ef11291bcd5f96 drivers/net/korina.c          Florian Fainelli    2008-03-19  1285  {
a53164fb8ec50c drivers/net/ethernet/korina.c Thomas Bogendoerfer 2021-04-14  1286  	const u8 *mac_addr = dev_get_platdata(&pdev->dev);
ef11291bcd5f96 drivers/net/korina.c          Florian Fainelli    2008-03-19  1287  	struct korina_private *lp;
ef11291bcd5f96 drivers/net/korina.c          Florian Fainelli    2008-03-19  1288  	struct net_device *dev;
0bc4efb1d82bd4 drivers/net/ethernet/korina.c Thomas Bogendoerfer 2021-04-14  1289  	struct clk *clk;
1857bf0ef3562f drivers/net/ethernet/korina.c Thomas Bogendoerfer 2021-04-14  1290  	void __iomem *p;
e3152ab901bcec drivers/net/korina.c          Francois Romieu     2008-04-20  1291  	int rc;
ef11291bcd5f96 drivers/net/korina.c          Florian Fainelli    2008-03-19  1292  
1857bf0ef3562f drivers/net/ethernet/korina.c Thomas Bogendoerfer 2021-04-14  1293  	dev = devm_alloc_etherdev(&pdev->dev, sizeof(struct korina_private));
41de8d4cff21a2 drivers/net/ethernet/korina.c Joe Perches         2012-01-29  1294  	if (!dev)
ef11291bcd5f96 drivers/net/korina.c          Florian Fainelli    2008-03-19  1295  		return -ENOMEM;
41de8d4cff21a2 drivers/net/ethernet/korina.c Joe Perches         2012-01-29  1296  
ef11291bcd5f96 drivers/net/korina.c          Florian Fainelli    2008-03-19  1297  	SET_NETDEV_DEV(dev, &pdev->dev);
ef11291bcd5f96 drivers/net/korina.c          Florian Fainelli    2008-03-19  1298  	lp = netdev_priv(dev);
ef11291bcd5f96 drivers/net/korina.c          Florian Fainelli    2008-03-19  1299  
a53164fb8ec50c drivers/net/ethernet/korina.c Thomas Bogendoerfer 2021-04-14  1300  	if (mac_addr) {
a53164fb8ec50c drivers/net/ethernet/korina.c Thomas Bogendoerfer 2021-04-14  1301  		ether_addr_copy(dev->dev_addr, mac_addr);
a53164fb8ec50c drivers/net/ethernet/korina.c Thomas Bogendoerfer 2021-04-14  1302  	} else {
a53164fb8ec50c drivers/net/ethernet/korina.c Thomas Bogendoerfer 2021-04-14 @1303  		mac_addr = of_get_mac_address(pdev->dev.of_node);
a53164fb8ec50c drivers/net/ethernet/korina.c Thomas Bogendoerfer 2021-04-14  1304  		if (!IS_ERR(mac_addr))
a53164fb8ec50c drivers/net/ethernet/korina.c Thomas Bogendoerfer 2021-04-14  1305  			ether_addr_copy(dev->dev_addr, mac_addr);
a53164fb8ec50c drivers/net/ethernet/korina.c Thomas Bogendoerfer 2021-04-14  1306  		else
a53164fb8ec50c drivers/net/ethernet/korina.c Thomas Bogendoerfer 2021-04-14  1307  			eth_hw_addr_random(dev);
a53164fb8ec50c drivers/net/ethernet/korina.c Thomas Bogendoerfer 2021-04-14  1308  	}
ef11291bcd5f96 drivers/net/korina.c          Florian Fainelli    2008-03-19  1309  
0bc4efb1d82bd4 drivers/net/ethernet/korina.c Thomas Bogendoerfer 2021-04-14  1310  	clk = devm_clk_get(&pdev->dev, NULL);
0bc4efb1d82bd4 drivers/net/ethernet/korina.c Thomas Bogendoerfer 2021-04-14  1311  	if (!IS_ERR(clk)) {
0bc4efb1d82bd4 drivers/net/ethernet/korina.c Thomas Bogendoerfer 2021-04-14  1312  		clk_prepare_enable(clk);
0bc4efb1d82bd4 drivers/net/ethernet/korina.c Thomas Bogendoerfer 2021-04-14  1313  		lp->mii_clock_freq = clk_get_rate(clk);
0bc4efb1d82bd4 drivers/net/ethernet/korina.c Thomas Bogendoerfer 2021-04-14  1314  	} else {
0bc4efb1d82bd4 drivers/net/ethernet/korina.c Thomas Bogendoerfer 2021-04-14  1315  		lp->mii_clock_freq = 200000000; /* max possible input clk */
0bc4efb1d82bd4 drivers/net/ethernet/korina.c Thomas Bogendoerfer 2021-04-14  1316  	}
0bc4efb1d82bd4 drivers/net/ethernet/korina.c Thomas Bogendoerfer 2021-04-14  1317  
ef11291bcd5f96 drivers/net/korina.c          Florian Fainelli    2008-03-19  1318  	lp->rx_irq = platform_get_irq_byname(pdev, "korina_rx");
ef11291bcd5f96 drivers/net/korina.c          Florian Fainelli    2008-03-19  1319  	lp->tx_irq = platform_get_irq_byname(pdev, "korina_tx");
ef11291bcd5f96 drivers/net/korina.c          Florian Fainelli    2008-03-19  1320  
1857bf0ef3562f drivers/net/ethernet/korina.c Thomas Bogendoerfer 2021-04-14  1321  	p = devm_platform_ioremap_resource_byname(pdev, "korina_regs");
1857bf0ef3562f drivers/net/ethernet/korina.c Thomas Bogendoerfer 2021-04-14  1322  	if (!p) {
f16aea4d201018 drivers/net/korina.c          Phil Sutter         2009-08-12  1323  		printk(KERN_ERR DRV_NAME ": cannot remap registers\n");
1857bf0ef3562f drivers/net/ethernet/korina.c Thomas Bogendoerfer 2021-04-14  1324  		return -ENOMEM;
ef11291bcd5f96 drivers/net/korina.c          Florian Fainelli    2008-03-19  1325  	}
1857bf0ef3562f drivers/net/ethernet/korina.c Thomas Bogendoerfer 2021-04-14  1326  	lp->eth_regs = p;
ef11291bcd5f96 drivers/net/korina.c          Florian Fainelli    2008-03-19  1327  
1857bf0ef3562f drivers/net/ethernet/korina.c Thomas Bogendoerfer 2021-04-14  1328  	p = devm_platform_ioremap_resource_byname(pdev, "korina_dma_rx");
1857bf0ef3562f drivers/net/ethernet/korina.c Thomas Bogendoerfer 2021-04-14  1329  	if (!p) {
f16aea4d201018 drivers/net/korina.c          Phil Sutter         2009-08-12  1330  		printk(KERN_ERR DRV_NAME ": cannot remap Rx DMA registers\n");
1857bf0ef3562f drivers/net/ethernet/korina.c Thomas Bogendoerfer 2021-04-14  1331  		return -ENOMEM;
ef11291bcd5f96 drivers/net/korina.c          Florian Fainelli    2008-03-19  1332  	}
1857bf0ef3562f drivers/net/ethernet/korina.c Thomas Bogendoerfer 2021-04-14  1333  	lp->rx_dma_regs = p;
ef11291bcd5f96 drivers/net/korina.c          Florian Fainelli    2008-03-19  1334  
1857bf0ef3562f drivers/net/ethernet/korina.c Thomas Bogendoerfer 2021-04-14  1335  	p = devm_platform_ioremap_resource_byname(pdev, "korina_dma_tx");
1857bf0ef3562f drivers/net/ethernet/korina.c Thomas Bogendoerfer 2021-04-14  1336  	if (!p) {
f16aea4d201018 drivers/net/korina.c          Phil Sutter         2009-08-12  1337  		printk(KERN_ERR DRV_NAME ": cannot remap Tx DMA registers\n");
1857bf0ef3562f drivers/net/ethernet/korina.c Thomas Bogendoerfer 2021-04-14  1338  		return -ENOMEM;
ef11291bcd5f96 drivers/net/korina.c          Florian Fainelli    2008-03-19  1339  	}
1857bf0ef3562f drivers/net/ethernet/korina.c Thomas Bogendoerfer 2021-04-14  1340  	lp->tx_dma_regs = p;
ef11291bcd5f96 drivers/net/korina.c          Florian Fainelli    2008-03-19  1341  
df997a5caa5ebe drivers/net/ethernet/korina.c Thomas Bogendoerfer 2021-04-14  1342  	lp->td_ring = dmam_alloc_coherent(&pdev->dev, TD_RING_SIZE,
df997a5caa5ebe drivers/net/ethernet/korina.c Thomas Bogendoerfer 2021-04-14  1343  					  &lp->td_dma, GFP_KERNEL);
1857bf0ef3562f drivers/net/ethernet/korina.c Thomas Bogendoerfer 2021-04-14  1344  	if (!lp->td_ring)
1857bf0ef3562f drivers/net/ethernet/korina.c Thomas Bogendoerfer 2021-04-14  1345  		return -ENOMEM;
ef11291bcd5f96 drivers/net/korina.c          Florian Fainelli    2008-03-19  1346  
df997a5caa5ebe drivers/net/ethernet/korina.c Thomas Bogendoerfer 2021-04-14  1347  	lp->rd_ring = dmam_alloc_coherent(&pdev->dev, RD_RING_SIZE,
df997a5caa5ebe drivers/net/ethernet/korina.c Thomas Bogendoerfer 2021-04-14  1348  					  &lp->rd_dma, GFP_KERNEL);
df997a5caa5ebe drivers/net/ethernet/korina.c Thomas Bogendoerfer 2021-04-14  1349  	if (!lp->rd_ring)
df997a5caa5ebe drivers/net/ethernet/korina.c Thomas Bogendoerfer 2021-04-14  1350  		return -ENOMEM;
ef11291bcd5f96 drivers/net/korina.c          Florian Fainelli    2008-03-19  1351  
ef11291bcd5f96 drivers/net/korina.c          Florian Fainelli    2008-03-19  1352  	spin_lock_init(&lp->lock);
ef11291bcd5f96 drivers/net/korina.c          Florian Fainelli    2008-03-19  1353  	/* just use the rx dma irq */
ef11291bcd5f96 drivers/net/korina.c          Florian Fainelli    2008-03-19  1354  	dev->irq = lp->rx_irq;
ef11291bcd5f96 drivers/net/korina.c          Florian Fainelli    2008-03-19  1355  	lp->dev = dev;
df997a5caa5ebe drivers/net/ethernet/korina.c Thomas Bogendoerfer 2021-04-14  1356  	lp->dmadev = &pdev->dev;
ef11291bcd5f96 drivers/net/korina.c          Florian Fainelli    2008-03-19  1357  
52b031ff3987a0 drivers/net/korina.c          Alexander Beregalov 2009-04-15  1358  	dev->netdev_ops = &korina_netdev_ops;
ef11291bcd5f96 drivers/net/korina.c          Florian Fainelli    2008-03-19  1359  	dev->ethtool_ops = &netdev_ethtool_ops;
ef11291bcd5f96 drivers/net/korina.c          Florian Fainelli    2008-03-19  1360  	dev->watchdog_timeo = TX_TIMEOUT;
d609d2893c25a3 drivers/net/ethernet/korina.c Roman Yeryomin      2017-09-17  1361  	netif_napi_add(dev, &lp->napi, korina_poll, NAPI_POLL_WEIGHT);
ef11291bcd5f96 drivers/net/korina.c          Florian Fainelli    2008-03-19  1362  
ef11291bcd5f96 drivers/net/korina.c          Florian Fainelli    2008-03-19  1363  	lp->mii_if.dev = dev;
f645a16ba85561 drivers/net/ethernet/korina.c Thomas Bogendoerfer 2021-04-14  1364  	lp->mii_if.mdio_read = korina_mdio_read;
f645a16ba85561 drivers/net/ethernet/korina.c Thomas Bogendoerfer 2021-04-14  1365  	lp->mii_if.mdio_write = korina_mdio_write;
f645a16ba85561 drivers/net/ethernet/korina.c Thomas Bogendoerfer 2021-04-14  1366  	lp->mii_if.phy_id = 1;
ef11291bcd5f96 drivers/net/korina.c          Florian Fainelli    2008-03-19  1367  	lp->mii_if.phy_id_mask = 0x1f;
ef11291bcd5f96 drivers/net/korina.c          Florian Fainelli    2008-03-19  1368  	lp->mii_if.reg_num_mask = 0x1f;
ef11291bcd5f96 drivers/net/korina.c          Florian Fainelli    2008-03-19  1369  
2d6c00ed2bbd38 drivers/net/ethernet/korina.c Thomas Bogendoerfer 2021-04-14  1370  	platform_set_drvdata(pdev, dev);
2d6c00ed2bbd38 drivers/net/ethernet/korina.c Thomas Bogendoerfer 2021-04-14  1371  
e3152ab901bcec drivers/net/korina.c          Francois Romieu     2008-04-20  1372  	rc = register_netdev(dev);
e3152ab901bcec drivers/net/korina.c          Francois Romieu     2008-04-20  1373  	if (rc < 0) {
ef11291bcd5f96 drivers/net/korina.c          Florian Fainelli    2008-03-19  1374  		printk(KERN_ERR DRV_NAME
f16aea4d201018 drivers/net/korina.c          Phil Sutter         2009-08-12  1375  			": cannot register net device: %d\n", rc);
1857bf0ef3562f drivers/net/ethernet/korina.c Thomas Bogendoerfer 2021-04-14  1376  		return rc;
ef11291bcd5f96 drivers/net/korina.c          Florian Fainelli    2008-03-19  1377  	}
34309b36e4f1ab drivers/net/ethernet/korina.c Kees Cook           2017-10-26  1378  	timer_setup(&lp->media_check_timer, korina_poll_media, 0);
f16aea4d201018 drivers/net/korina.c          Phil Sutter         2009-08-12  1379  
ceb3d239453254 drivers/net/korina.c          Phil Sutter         2010-05-29  1380  	INIT_WORK(&lp->restart_task, korina_restart_task);
ceb3d239453254 drivers/net/korina.c          Phil Sutter         2010-05-29  1381  
f16aea4d201018 drivers/net/korina.c          Phil Sutter         2009-08-12  1382  	printk(KERN_INFO "%s: " DRV_NAME "-" DRV_VERSION " " DRV_RELDATE "\n",
f16aea4d201018 drivers/net/korina.c          Phil Sutter         2009-08-12  1383  			dev->name);
e3152ab901bcec drivers/net/korina.c          Francois Romieu     2008-04-20  1384  	return rc;
ef11291bcd5f96 drivers/net/korina.c          Florian Fainelli    2008-03-19  1385  }
ef11291bcd5f96 drivers/net/korina.c          Florian Fainelli    2008-03-19  1386  

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
diff mbox series

Patch

diff --git a/drivers/net/ethernet/Kconfig b/drivers/net/ethernet/Kconfig
index c059b4bd3f23..453d202a28c1 100644
--- a/drivers/net/ethernet/Kconfig
+++ b/drivers/net/ethernet/Kconfig
@@ -97,7 +97,7 @@  config JME
 
 config KORINA
 	tristate "Korina (IDT RC32434) Ethernet support"
-	depends on MIKROTIK_RB532
+	depends on MIKROTIK_RB532 || COMPILE_TEST
 	select MII
 	help
 	  If you have a Mikrotik RouterBoard 500 or IDT RC32434
diff --git a/drivers/net/ethernet/korina.c b/drivers/net/ethernet/korina.c
index df75dd5d1638..025f88ae99be 100644
--- a/drivers/net/ethernet/korina.c
+++ b/drivers/net/ethernet/korina.c
@@ -58,18 +58,244 @@ 
 #include <linux/pgtable.h>
 #include <linux/clk.h>
 
-#include <asm/bootinfo.h>
-#include <asm/bitops.h>
-#include <asm/io.h>
-#include <asm/dma.h>
-
-#include <asm/mach-rc32434/eth.h>
-#include <asm/mach-rc32434/dma_v.h>
-
 #define DRV_NAME	"korina"
 #define DRV_VERSION	"0.20"
 #define DRV_RELDATE	"15Sep2017"
 
+struct eth_regs {
+	u32 ethintfc;
+	u32 ethfifott;
+	u32 etharc;
+	u32 ethhash0;
+	u32 ethhash1;
+	u32 ethu0[4];		/* Reserved. */
+	u32 ethpfs;
+	u32 ethmcp;
+	u32 eth_u1[10];		/* Reserved. */
+	u32 ethspare;
+	u32 eth_u2[42];		/* Reserved. */
+	u32 ethsal0;
+	u32 ethsah0;
+	u32 ethsal1;
+	u32 ethsah1;
+	u32 ethsal2;
+	u32 ethsah2;
+	u32 ethsal3;
+	u32 ethsah3;
+	u32 ethrbc;
+	u32 ethrpc;
+	u32 ethrupc;
+	u32 ethrfc;
+	u32 ethtbc;
+	u32 ethgpf;
+	u32 eth_u9[50];		/* Reserved. */
+	u32 ethmac1;
+	u32 ethmac2;
+	u32 ethipgt;
+	u32 ethipgr;
+	u32 ethclrt;
+	u32 ethmaxf;
+	u32 eth_u10;		/* Reserved. */
+	u32 ethmtest;
+	u32 miimcfg;
+	u32 miimcmd;
+	u32 miimaddr;
+	u32 miimwtd;
+	u32 miimrdd;
+	u32 miimind;
+	u32 eth_u11;		/* Reserved. */
+	u32 eth_u12;		/* Reserved. */
+	u32 ethcfsa0;
+	u32 ethcfsa1;
+	u32 ethcfsa2;
+};
+
+/* Ethernet interrupt registers */
+#define ETH_INT_FC_EN		BIT(0)
+#define ETH_INT_FC_ITS		BIT(1)
+#define ETH_INT_FC_RIP		BIT(2)
+#define ETH_INT_FC_JAM		BIT(3)
+#define ETH_INT_FC_OVR		BIT(4)
+#define ETH_INT_FC_UND		BIT(5)
+#define ETH_INT_FC_IOC		0x000000c0
+
+/* Ethernet FIFO registers */
+#define ETH_FIFI_TT_TTH_BIT	0
+#define ETH_FIFO_TT_TTH		0x0000007f
+
+/* Ethernet ARC/multicast registers */
+#define ETH_ARC_PRO		BIT(0)
+#define ETH_ARC_AM		BIT(1)
+#define ETH_ARC_AFM		BIT(2)
+#define ETH_ARC_AB		BIT(3)
+
+/* Ethernet SAL registers */
+#define ETH_SAL_BYTE_5		0x000000ff
+#define ETH_SAL_BYTE_4		0x0000ff00
+#define ETH_SAL_BYTE_3		0x00ff0000
+#define ETH_SAL_BYTE_2		0xff000000
+
+/* Ethernet SAH registers */
+#define ETH_SAH_BYTE1		0x000000ff
+#define ETH_SAH_BYTE0		0x0000ff00
+
+/* Ethernet GPF register */
+#define ETH_GPF_PTV		0x0000ffff
+
+/* Ethernet PFG register */
+#define ETH_PFS_PFD		BIT(0)
+
+/* Ethernet CFSA[0-3] registers */
+#define ETH_CFSA0_CFSA4		0x000000ff
+#define ETH_CFSA0_CFSA5		0x0000ff00
+#define ETH_CFSA1_CFSA2		0x000000ff
+#define ETH_CFSA1_CFSA3		0x0000ff00
+#define ETH_CFSA1_CFSA0		0x000000ff
+#define ETH_CFSA1_CFSA1		0x0000ff00
+
+/* Ethernet MAC1 registers */
+#define ETH_MAC1_RE		BIT(0)
+#define ETH_MAC1_PAF		BIT(1)
+#define ETH_MAC1_RFC		BIT(2)
+#define ETH_MAC1_TFC		BIT(3)
+#define ETH_MAC1_LB		BIT(4)
+#define ETH_MAC1_MR		BIT(31)
+
+/* Ethernet MAC2 registers */
+#define ETH_MAC2_FD		BIT(0)
+#define ETH_MAC2_FLC		BIT(1)
+#define ETH_MAC2_HFE		BIT(2)
+#define ETH_MAC2_DC		BIT(3)
+#define ETH_MAC2_CEN		BIT(4)
+#define ETH_MAC2_PE		BIT(5)
+#define ETH_MAC2_VPE		BIT(6)
+#define ETH_MAC2_APE		BIT(7)
+#define ETH_MAC2_PPE		BIT(8)
+#define ETH_MAC2_LPE		BIT(9)
+#define ETH_MAC2_NB		BIT(12)
+#define ETH_MAC2_BP		BIT(13)
+#define ETH_MAC2_ED		BIT(14)
+
+/* Ethernet IPGT register */
+#define ETH_IPGT		0x0000007f
+
+/* Ethernet IPGR registers */
+#define ETH_IPGR_IPGR2		0x0000007f
+#define ETH_IPGR_IPGR1		0x00007f00
+
+/* Ethernet CLRT registers */
+#define ETH_CLRT_MAX_RET	0x0000000f
+#define ETH_CLRT_COL_WIN	0x00003f00
+
+/* Ethernet MAXF register */
+#define ETH_MAXF		0x0000ffff
+
+/* Ethernet test registers */
+#define ETH_TEST_REG		BIT(2)
+#define ETH_MCP_DIV		0x000000ff
+
+/* MII registers */
+#define ETH_MII_CFG_RSVD	0x0000000c
+#define ETH_MII_CMD_RD		BIT(0)
+#define ETH_MII_CMD_SCN		BIT(1)
+#define ETH_MII_REG_ADDR	0x0000001f
+#define ETH_MII_PHY_ADDR	0x00001f00
+#define ETH_MII_WTD_DATA	0x0000ffff
+#define ETH_MII_RDD_DATA	0x0000ffff
+#define ETH_MII_IND_BSY		BIT(0)
+#define ETH_MII_IND_SCN		BIT(1)
+#define ETH_MII_IND_NV		BIT(2)
+
+/* Values for the DEVCS field of the Ethernet DMA Rx and Tx descriptors. */
+#define ETH_RX_FD		BIT(0)
+#define ETH_RX_LD		BIT(1)
+#define ETH_RX_ROK		BIT(2)
+#define ETH_RX_FM		BIT(3)
+#define ETH_RX_MP		BIT(4)
+#define ETH_RX_BP		BIT(5)
+#define ETH_RX_VLT		BIT(6)
+#define ETH_RX_CF		BIT(7)
+#define ETH_RX_OVR		BIT(8)
+#define ETH_RX_CRC		BIT(9)
+#define ETH_RX_CV		BIT(10)
+#define ETH_RX_DB		BIT(11)
+#define ETH_RX_LE		BIT(12)
+#define ETH_RX_LOR		BIT(13)
+#define ETH_RX_CES		BIT(14)
+#define ETH_RX_LEN_BIT		16
+#define ETH_RX_LEN		0xffff0000
+
+#define ETH_TX_FD		BIT(0)
+#define ETH_TX_LD		BIT(1)
+#define ETH_TX_OEN		BIT(2)
+#define ETH_TX_PEN		BIT(3)
+#define ETH_TX_CEN		BIT(4)
+#define ETH_TX_HEN		BIT(5)
+#define ETH_TX_TOK		BIT(6)
+#define ETH_TX_MP		BIT(7)
+#define ETH_TX_BP		BIT(8)
+#define ETH_TX_UND		BIT(9)
+#define ETH_TX_OF		BIT(10)
+#define ETH_TX_ED		BIT(11)
+#define ETH_TX_EC		BIT(12)
+#define ETH_TX_LC		BIT(13)
+#define ETH_TX_TD		BIT(14)
+#define ETH_TX_CRC		BIT(15)
+#define ETH_TX_LE		BIT(16)
+#define ETH_TX_CC		0x001E0000
+
+/* DMA descriptor (in physical memory). */
+struct dma_desc {
+	u32 control;			/* Control. use DMAD_* */
+	u32 ca;				/* Current Address. */
+	u32 devcs;			/* Device control and status. */
+	u32 link;			/* Next descriptor in chain. */
+};
+
+#define DMA_DESC_COUNT_BIT		0
+#define DMA_DESC_COUNT_MSK		0x0003ffff
+#define DMA_DESC_DS_BIT			20
+#define DMA_DESC_DS_MSK			0x00300000
+
+#define DMA_DESC_DEV_CMD_BIT		22
+#define DMA_DESC_DEV_CMD_MSK		0x01c00000
+
+/* DMA descriptors interrupts */
+#define DMA_DESC_COF			BIT(25) /* Chain on finished */
+#define DMA_DESC_COD			BIT(26) /* Chain on done */
+#define DMA_DESC_IOF			BIT(27) /* Interrupt on finished */
+#define DMA_DESC_IOD			BIT(28) /* Interrupt on done */
+#define DMA_DESC_TERM			BIT(29) /* Terminated */
+#define DMA_DESC_DONE			BIT(30) /* Done */
+#define DMA_DESC_FINI			BIT(31) /* Finished */
+
+/* DMA register (within Internal Register Map).  */
+struct dma_reg {
+	u32 dmac;		/* Control. */
+	u32 dmas;		/* Status. */
+	u32 dmasm;		/* Mask. */
+	u32 dmadptr;		/* Descriptor pointer. */
+	u32 dmandptr;		/* Next descriptor pointer. */
+};
+
+/* DMA channels specific registers */
+#define DMA_CHAN_RUN_BIT		BIT(0)
+#define DMA_CHAN_DONE_BIT		BIT(1)
+#define DMA_CHAN_MODE_BIT		BIT(2)
+#define DMA_CHAN_MODE_MSK		0x0000000c
+#define	 DMA_CHAN_MODE_AUTO		0
+#define	 DMA_CHAN_MODE_BURST		1
+#define	 DMA_CHAN_MODE_XFRT		2
+#define	 DMA_CHAN_MODE_RSVD		3
+#define DMA_CHAN_ACT_BIT		BIT(4)
+
+/* DMA status registers */
+#define DMA_STAT_FINI			BIT(0)
+#define DMA_STAT_DONE			BIT(1)
+#define DMA_STAT_CHAIN			BIT(2)
+#define DMA_STAT_ERR			BIT(3)
+#define DMA_STAT_HALT			BIT(4)
+
 #define STATION_ADDRESS_HIGH(dev) (((dev)->dev_addr[0] << 8) | \
 				   ((dev)->dev_addr[1]))
 #define STATION_ADDRESS_LOW(dev)  (((dev)->dev_addr[2] << 24) | \
@@ -99,6 +325,7 @@  enum chain_status {
 	desc_empty
 };
 
+#define DMA_COUNT(count)	((count) & DMA_DESC_COUNT_MSK)
 #define IS_DMA_FINISHED(X)	(((X) & (DMA_DESC_FINI)) != 0)
 #define IS_DMA_DONE(X)		(((X) & (DMA_DESC_DONE)) != 0)
 #define RCVPKT_LENGTH(X)	(((X) & ETH_RX_LEN) >> ETH_RX_LEN_BIT)
@@ -454,14 +681,14 @@  static int korina_rx(struct net_device *dev, int limit)
 
 		lp->rx_next_done = (lp->rx_next_done + 1) & KORINA_RDS_MASK;
 		rd = &lp->rd_ring[lp->rx_next_done];
-		writel(~DMA_STAT_DONE, &lp->rx_dma_regs->dmas);
+		writel((u32)~DMA_STAT_DONE, &lp->rx_dma_regs->dmas);
 	}
 
 	dmas = readl(&lp->rx_dma_regs->dmas);
 
 	if (dmas & DMA_STAT_HALT) {
-		writel(~(DMA_STAT_HALT | DMA_STAT_ERR),
-				&lp->rx_dma_regs->dmas);
+		writel((u32)~(DMA_STAT_HALT | DMA_STAT_ERR),
+		       &lp->rx_dma_regs->dmas);
 
 		lp->dma_halt_cnt++;
 		rd->devcs = 0;