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Merge branch 'cpsw-macid-no-of'

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Mugunthan V N says:

====================
Add support for reading macid when DT macid not found

Did a boot test on dra7-evm [1] and am437x-gp-evm [2].
Pushed a branch [3] for others to test the patch.

[1]: http://pastebin.ubuntu.com/12513420/
[2]: http://pastebin.ubuntu.com/12513428/
[3]: git://git.ti.com/~mugunthanvnm/ti-linux-kernel/linux.git cpsw-macid-read-support
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller 2015-09-21 17:21:47 -07:00
commit 35736c8165
6 changed files with 64 additions and 58 deletions
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1
arch/arm/boot/dts/am4372.dtsi
View File

@ -591,6 +591,7 @@
cpts_clock_mult = <0x80000000>;
cpts_clock_shift = <29>;
ranges;
syscon = <&scm_conf>;
davinci_mdio: mdio@4a101000 {
compatible = "ti,am4372-mdio","ti,davinci_mdio";

1
arch/arm/boot/dts/dra7.dtsi
View File

@ -1447,6 +1447,7 @@
<GIC_SPI 336 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 337 IRQ_TYPE_LEVEL_HIGH>;
ranges;
syscon = <&scm_conf>;
status = "disabled";
davinci_mdio: mdio@48485000 {

64
drivers/net/ethernet/ti/cpsw-common.c
View File

@ -19,11 +19,38 @@
#include "cpsw.h"
#define AM33XX_CTRL_MAC_LO_REG(offset, id) ((offset) + 0x8 * (id))
#define AM33XX_CTRL_MAC_HI_REG(offset, id) ((offset) + 0x8 * (id) + 0x4)
#define CTRL_MAC_LO_REG(offset, id) ((offset) + 0x8 * (id))
#define CTRL_MAC_HI_REG(offset, id) ((offset) + 0x8 * (id) + 0x4)
int cpsw_am33xx_cm_get_macid(struct device *dev, u16 offset, int slave,
u8 *mac_addr)
static int davinci_emac_3517_get_macid(struct device *dev, u16 offset,
int slave, u8 *mac_addr)
{
u32 macid_lsb;
u32 macid_msb;
struct regmap *syscon;
syscon = syscon_regmap_lookup_by_phandle(dev->of_node, "syscon");
if (IS_ERR(syscon)) {
if (PTR_ERR(syscon) == -ENODEV)
return 0;
return PTR_ERR(syscon);
}
regmap_read(syscon, CTRL_MAC_LO_REG(offset, slave), &macid_lsb);
regmap_read(syscon, CTRL_MAC_HI_REG(offset, slave), &macid_msb);
mac_addr[0] = (macid_msb >> 16) & 0xff;
mac_addr[1] = (macid_msb >> 8) & 0xff;
mac_addr[2] = macid_msb & 0xff;
mac_addr[3] = (macid_lsb >> 16) & 0xff;
mac_addr[4] = (macid_lsb >> 8) & 0xff;
mac_addr[5] = macid_lsb & 0xff;
return 0;
}
static int cpsw_am33xx_cm_get_macid(struct device *dev, u16 offset, int slave,
u8 *mac_addr)
{
u32 macid_lo;
u32 macid_hi;
@ -36,10 +63,8 @@ int cpsw_am33xx_cm_get_macid(struct device *dev, u16 offset, int slave,
return PTR_ERR(syscon);
}
regmap_read(syscon, AM33XX_CTRL_MAC_LO_REG(offset, slave),
&macid_lo);
regmap_read(syscon, AM33XX_CTRL_MAC_HI_REG(offset, slave),
&macid_hi);
regmap_read(syscon, CTRL_MAC_LO_REG(offset, slave), &macid_lo);
regmap_read(syscon, CTRL_MAC_HI_REG(offset, slave), &macid_hi);
mac_addr[5] = (macid_lo >> 8) & 0xff;
mac_addr[4] = macid_lo & 0xff;
@ -50,6 +75,27 @@ int cpsw_am33xx_cm_get_macid(struct device *dev, u16 offset, int slave,
return 0;
}
EXPORT_SYMBOL_GPL(cpsw_am33xx_cm_get_macid);
int ti_cm_get_macid(struct device *dev, int slave, u8 *mac_addr)
{
if (of_machine_is_compatible("ti,am33xx"))
return cpsw_am33xx_cm_get_macid(dev, 0x630, slave, mac_addr);
if (of_device_is_compatible(dev->of_node, "ti,am3517-emac"))
return davinci_emac_3517_get_macid(dev, 0x110, slave, mac_addr);
if (of_device_is_compatible(dev->of_node, "ti,dm816-emac"))
return cpsw_am33xx_cm_get_macid(dev, 0x30, slave, mac_addr);
if (of_machine_is_compatible("ti,am4372"))
return cpsw_am33xx_cm_get_macid(dev, 0x630, slave, mac_addr);
if (of_machine_is_compatible("ti,dra7"))
return davinci_emac_3517_get_macid(dev, 0x514, slave, mac_addr);
dev_err(dev, "incompatible machine/device type for reading mac address\n");
return -ENOENT;
}
EXPORT_SYMBOL_GPL(ti_cm_get_macid);
MODULE_LICENSE("GPL");

11
drivers/net/ethernet/ti/cpsw.c
View File

@ -2058,13 +2058,10 @@ no_phy_slave:
if (mac_addr) {
memcpy(slave_data->mac_addr, mac_addr, ETH_ALEN);
} else {
if (of_machine_is_compatible("ti,am33xx")) {
ret = cpsw_am33xx_cm_get_macid(&pdev->dev,
0x630, i,
slave_data->mac_addr);
if (ret)
return ret;
}
ret = ti_cm_get_macid(&pdev->dev, i,
slave_data->mac_addr);
if (ret)
return ret;
}
if (data->dual_emac) {
if (of_property_read_u32(slave_node, "dual_emac_res_vlan",

3
drivers/net/ethernet/ti/cpsw.h
View File

@ -41,7 +41,6 @@ struct cpsw_platform_data {
};
void cpsw_phy_sel(struct device *dev, phy_interface_t phy_mode, int slave);
int cpsw_am33xx_cm_get_macid(struct device *dev, u16 offset, int slave,
u8 *mac_addr);
int ti_cm_get_macid(struct device *dev, int slave, u8 *mac_addr);
#endif /* __CPSW_H__ */

42
drivers/net/ethernet/ti/davinci_emac.c
View File

@ -1882,51 +1882,13 @@ davinci_emac_of_get_pdata(struct platform_device *pdev, struct emac_priv *priv)
return pdata;
}
static int davinci_emac_3517_get_macid(struct device *dev, u16 offset,
int slave, u8 *mac_addr)
{
u32 macid_lsb;
u32 macid_msb;
struct regmap *syscon;
syscon = syscon_regmap_lookup_by_phandle(dev->of_node, "syscon");
if (IS_ERR(syscon)) {
if (PTR_ERR(syscon) == -ENODEV)
return 0;
return PTR_ERR(syscon);
}
regmap_read(syscon, offset, &macid_lsb);
regmap_read(syscon, offset + 4, &macid_msb);
mac_addr[0] = (macid_msb >> 16) & 0xff;
mac_addr[1] = (macid_msb >> 8) & 0xff;
mac_addr[2] = macid_msb & 0xff;
mac_addr[3] = (macid_lsb >> 16) & 0xff;
mac_addr[4] = (macid_lsb >> 8) & 0xff;
mac_addr[5] = macid_lsb & 0xff;
return 0;
}
static int davinci_emac_try_get_mac(struct platform_device *pdev,
int instance, u8 *mac_addr)
{
int error = -EINVAL;
if (!pdev->dev.of_node)
return error;
return -EINVAL;
if (of_device_is_compatible(pdev->dev.of_node, "ti,am3517-emac"))
error = davinci_emac_3517_get_macid(&pdev->dev, 0x110,
0, mac_addr);
else if (of_device_is_compatible(pdev->dev.of_node,
"ti,dm816-emac"))
error = cpsw_am33xx_cm_get_macid(&pdev->dev, 0x30,
instance,
mac_addr);
return error;
return ti_cm_get_macid(&pdev->dev, instance, mac_addr);
}
/**