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ARM/net: ixp4xx: Pass ethernet physical base as resource

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In order to probe this ethernet interface from the device tree
all physical MMIO regions must be passed as resources. Begin
this rewrite by first passing the port base address as a
resource for all platforms using this driver, remap it in
the driver and avoid using any reference of the statically
mapped virtual address in the driver.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Linus Walleij 2020-01-12 13:04:49 +01:00 committed by Jakub Kicinski
parent 3cb5b0ee72
commit f458ac4797
8 changed files with 131 additions and 9 deletions
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20
arch/arm/mach-ixp4xx/fsg-setup.c
View File

@ -132,6 +132,22 @@ static struct platform_device fsg_leds = {
};
/* Built-in 10/100 Ethernet MAC interfaces */
static struct resource fsg_eth_npeb_resources[] = {
{
.start = IXP4XX_EthB_BASE_PHYS,
.end = IXP4XX_EthB_BASE_PHYS + 0x0fff,
.flags = IORESOURCE_MEM,
},
};
static struct resource fsg_eth_npec_resources[] = {
{
.start = IXP4XX_EthC_BASE_PHYS,
.end = IXP4XX_EthC_BASE_PHYS + 0x0fff,
.flags = IORESOURCE_MEM,
},
};
static struct eth_plat_info fsg_plat_eth[] = {
{
.phy = 5,
@ -151,12 +167,16 @@ static struct platform_device fsg_eth[] = {
.dev = {
.platform_data = fsg_plat_eth,
},
.num_resources = ARRAY_SIZE(fsg_eth_npeb_resources),
.resource = fsg_eth_npeb_resources,
}, {
.name = "ixp4xx_eth",
.id = IXP4XX_ETH_NPEC,
.dev = {
.platform_data = fsg_plat_eth + 1,
},
.num_resources = ARRAY_SIZE(fsg_eth_npec_resources),
.resource = fsg_eth_npec_resources,
}
};

20
arch/arm/mach-ixp4xx/goramo_mlr.c
View File

@ -273,6 +273,22 @@ static struct platform_device device_uarts = {
/* Built-in 10/100 Ethernet MAC interfaces */
static struct resource eth_npeb_resources[] = {
{
.start = IXP4XX_EthB_BASE_PHYS,
.end = IXP4XX_EthB_BASE_PHYS + 0x0fff,
.flags = IORESOURCE_MEM,
},
};
static struct resource eth_npec_resources[] = {
{
.start = IXP4XX_EthC_BASE_PHYS,
.end = IXP4XX_EthC_BASE_PHYS + 0x0fff,
.flags = IORESOURCE_MEM,
},
};
static struct eth_plat_info eth_plat[] = {
{
.phy = 0,
@ -290,10 +306,14 @@ static struct platform_device device_eth_tab[] = {
.name = "ixp4xx_eth",
.id = IXP4XX_ETH_NPEB,
.dev.platform_data = eth_plat,
.num_resources = ARRAY_SIZE(eth_npeb_resources),
.resource = eth_npeb_resources,
}, {
.name = "ixp4xx_eth",
.id = IXP4XX_ETH_NPEC,
.dev.platform_data = eth_plat + 1,
.num_resources = ARRAY_SIZE(eth_npec_resources),
.resource = eth_npec_resources,
}
};

20
arch/arm/mach-ixp4xx/ixdp425-setup.c
View File

@ -187,6 +187,22 @@ static struct platform_device ixdp425_uart = {
};
/* Built-in 10/100 Ethernet MAC interfaces */
static struct resource ixp425_npeb_resources[] = {
{
.start = IXP4XX_EthB_BASE_PHYS,
.end = IXP4XX_EthB_BASE_PHYS + 0x0fff,
.flags = IORESOURCE_MEM,
},
};
static struct resource ixp425_npec_resources[] = {
{
.start = IXP4XX_EthC_BASE_PHYS,
.end = IXP4XX_EthC_BASE_PHYS + 0x0fff,
.flags = IORESOURCE_MEM,
},
};
static struct eth_plat_info ixdp425_plat_eth[] = {
{
.phy = 0,
@ -204,10 +220,14 @@ static struct platform_device ixdp425_eth[] = {
.name = "ixp4xx_eth",
.id = IXP4XX_ETH_NPEB,
.dev.platform_data = ixdp425_plat_eth,
.num_resources = ARRAY_SIZE(ixp425_npeb_resources),
.resource = ixp425_npeb_resources,
}, {
.name = "ixp4xx_eth",
.id = IXP4XX_ETH_NPEC,
.dev.platform_data = ixdp425_plat_eth + 1,
.num_resources = ARRAY_SIZE(ixp425_npec_resources),
.resource = ixp425_npec_resources,
}
};

10
arch/arm/mach-ixp4xx/nas100d-setup.c
View File

@ -165,6 +165,14 @@ static struct platform_device nas100d_uart = {
};
/* Built-in 10/100 Ethernet MAC interfaces */
static struct resource nas100d_eth_resources[] = {
{
.start = IXP4XX_EthB_BASE_PHYS,
.end = IXP4XX_EthB_BASE_PHYS + 0x0fff,
.flags = IORESOURCE_MEM,
},
};
static struct eth_plat_info nas100d_plat_eth[] = {
{
.phy = 0,
@ -178,6 +186,8 @@ static struct platform_device nas100d_eth[] = {
.name = "ixp4xx_eth",
.id = IXP4XX_ETH_NPEB,
.dev.platform_data = nas100d_plat_eth,
.num_resources = ARRAY_SIZE(nas100d_eth_resources),
.resource = nas100d_eth_resources,
}
};

10
arch/arm/mach-ixp4xx/nslu2-setup.c
View File

@ -185,6 +185,14 @@ static struct platform_device nslu2_uart = {
};
/* Built-in 10/100 Ethernet MAC interfaces */
static struct resource nslu2_eth_resources[] = {
{
.start = IXP4XX_EthB_BASE_PHYS,
.end = IXP4XX_EthB_BASE_PHYS + 0x0fff,
.flags = IORESOURCE_MEM,
},
};
static struct eth_plat_info nslu2_plat_eth[] = {
{
.phy = 1,
@ -198,6 +206,8 @@ static struct platform_device nslu2_eth[] = {
.name = "ixp4xx_eth",
.id = IXP4XX_ETH_NPEB,
.dev.platform_data = nslu2_plat_eth,
.num_resources = ARRAY_SIZE(nslu2_eth_resources),
.resource = nslu2_eth_resources,
}
};

20
arch/arm/mach-ixp4xx/omixp-setup.c
View File

@ -170,6 +170,22 @@ static struct platform_device mic256_leds = {
};
/* Built-in 10/100 Ethernet MAC interfaces */
static struct resource ixp425_npeb_resources[] = {
{
.start = IXP4XX_EthB_BASE_PHYS,
.end = IXP4XX_EthB_BASE_PHYS + 0x0fff,
.flags = IORESOURCE_MEM,
},
};
static struct resource ixp425_npec_resources[] = {
{
.start = IXP4XX_EthC_BASE_PHYS,
.end = IXP4XX_EthC_BASE_PHYS + 0x0fff,
.flags = IORESOURCE_MEM,
},
};
static struct eth_plat_info ixdp425_plat_eth[] = {
{
.phy = 0,
@ -187,10 +203,14 @@ static struct platform_device ixdp425_eth[] = {
.name = "ixp4xx_eth",
.id = IXP4XX_ETH_NPEB,
.dev.platform_data = ixdp425_plat_eth,
.num_resources = ARRAY_SIZE(ixp425_npeb_resources),
.resource = ixp425_npeb_resources,
}, {
.name = "ixp4xx_eth",
.id = IXP4XX_ETH_NPEC,
.dev.platform_data = ixdp425_plat_eth + 1,
.num_resources = ARRAY_SIZE(ixp425_npec_resources),
.resource = ixp425_npec_resources,
},
};

20
arch/arm/mach-ixp4xx/vulcan-setup.c
View File

@ -124,6 +124,22 @@ static struct platform_device vulcan_uart = {
.num_resources = ARRAY_SIZE(vulcan_uart_resources),
};
static struct resource vulcan_npeb_resources[] = {
{
.start = IXP4XX_EthB_BASE_PHYS,
.end = IXP4XX_EthB_BASE_PHYS + 0x0fff,
.flags = IORESOURCE_MEM,
},
};
static struct resource vulcan_npec_resources[] = {
{
.start = IXP4XX_EthC_BASE_PHYS,
.end = IXP4XX_EthC_BASE_PHYS + 0x0fff,
.flags = IORESOURCE_MEM,
},
};
static struct eth_plat_info vulcan_plat_eth[] = {
[0] = {
.phy = 0,
@ -144,6 +160,8 @@ static struct platform_device vulcan_eth[] = {
.dev = {
.platform_data = &vulcan_plat_eth[0],
},
.num_resources = ARRAY_SIZE(vulcan_npeb_resources),
.resource = vulcan_npeb_resources,
},
[1] = {
.name = "ixp4xx_eth",
@ -151,6 +169,8 @@ static struct platform_device vulcan_eth[] = {
.dev = {
.platform_data = &vulcan_plat_eth[1],
},
.num_resources = ARRAY_SIZE(vulcan_npec_resources),
.resource = vulcan_npec_resources,
},
};

20
drivers/net/ethernet/xscale/ixp4xx_eth.c
View File

@ -1365,9 +1365,10 @@ static int ixp4xx_eth_probe(struct platform_device *pdev)
struct phy_device *phydev = NULL;
struct device *dev = &pdev->dev;
struct eth_plat_info *plat;
resource_size_t regs_phys;
struct net_device *ndev;
struct resource *res;
struct port *port;
u32 regs_phys;
int err;
plat = dev_get_platdata(dev);
@ -1380,13 +1381,18 @@ static int ixp4xx_eth_probe(struct platform_device *pdev)
port->netdev = ndev;
port->id = pdev->id;
/* Get the port resource and remap */
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!res)
return -ENODEV;
regs_phys = res->start;
port->regs = devm_ioremap_resource(dev, res);
switch (port->id) {
case IXP4XX_ETH_NPEA:
/* If the MDIO bus is not up yet, defer probe */
if (!mdio_bus)
return -EPROBE_DEFER;
port->regs = (struct eth_regs __iomem *)IXP4XX_EthA_BASE_VIRT;
regs_phys = IXP4XX_EthA_BASE_PHYS;
break;
case IXP4XX_ETH_NPEB:
/*
@ -1399,13 +1405,11 @@ static int ixp4xx_eth_probe(struct platform_device *pdev)
IXP4XX_FEATURE_NPEB_ETH0))
return -ENODEV;
/* Else register the MDIO bus on NPE-B */
if ((err = ixp4xx_mdio_register(IXP4XX_EthC_BASE_VIRT)))
if ((err = ixp4xx_mdio_register(port->regs)))
return err;
}
if (!mdio_bus)
return -EPROBE_DEFER;
port->regs = (struct eth_regs __iomem *)IXP4XX_EthB_BASE_VIRT;
regs_phys = IXP4XX_EthB_BASE_PHYS;
break;
case IXP4XX_ETH_NPEC:
/*
@ -1417,13 +1421,11 @@ static int ixp4xx_eth_probe(struct platform_device *pdev)
IXP4XX_FEATURE_NPEC_ETH))
return -ENODEV;
/* Else register the MDIO bus on NPE-C */
if ((err = ixp4xx_mdio_register(IXP4XX_EthC_BASE_VIRT)))
if ((err = ixp4xx_mdio_register(port->regs)))
return err;
}
if (!mdio_bus)
return -EPROBE_DEFER;
port->regs = (struct eth_regs __iomem *)IXP4XX_EthC_BASE_VIRT;
regs_phys = IXP4XX_EthC_BASE_PHYS;
break;
default:
return -ENODEV;