[PATCH net-next] net: hisilicon: deals with the sub ctrl by syscon
From: yankejian <hidden>
Date: 2015-10-21 09:42:24
Also in:
linux-arm-kernel, lkml
Subsystem:
hisilicon network subsystem driver, networking drivers, the rest · Maintainers:
Jian Shen, Jijie Shao, Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
the global Soc configuration is treated by syscon, and sub ctrl bus is Soc bus. it has to be treated by syscon. Signed-off-by: yankejian <redacted> Signed-off-by: lisheng <redacted> Signed-off-by: lipeng <redacted> --- drivers/net/ethernet/hisilicon/hns_mdio.c | 21 +++++++++++---------- 1 file changed, 11 insertions(+), 10 deletions(-)
diff --git a/drivers/net/ethernet/hisilicon/hns_mdio.c b/drivers/net/ethernet/hisilicon/hns_mdio.c
index e4ec52a..37491c8 100644
--- a/drivers/net/ethernet/hisilicon/hns_mdio.c
+++ b/drivers/net/ethernet/hisilicon/hns_mdio.c@@ -11,6 +11,7 @@ #include <linux/etherdevice.h> #include <linux/init.h> #include <linux/kernel.h> +#include <linux/mfd/syscon.h> #include <linux/module.h> #include <linux/mutex.h> #include <linux/netdevice.h>
@@ -20,6 +21,7 @@ #include <linux/of_platform.h> #include <linux/phy.h> #include <linux/platform_device.h> +#include <linux/regmap.h> #include <linux/spinlock_types.h> #define MDIO_DRV_NAME "Hi-HNS_MDIO"
@@ -36,7 +38,7 @@ struct hns_mdio_device { void *vbase; /* mdio reg base address */ - void *sys_vbase; + struct regmap *subctrl_vbase; }; /* mdio reg */
@@ -155,10 +157,10 @@ static int mdio_sc_cfg_reg_write(struct hns_mdio_device *mdio_dev, u32 time_cnt; u32 reg_value; - mdio_write_reg((void *)mdio_dev->sys_vbase, cfg_reg, set_val); + regmap_write(mdio_dev->subctrl_vbase, cfg_reg, set_val); for (time_cnt = MDIO_TIMEOUT; time_cnt; time_cnt--) { - reg_value = mdio_read_reg((void *)mdio_dev->sys_vbase, st_reg); + regmap_read(mdio_dev->subctrl_vbase, st_reg, ®_value); reg_value &= st_msk; if ((!!check_st) == (!!reg_value)) break;
@@ -352,7 +354,7 @@ static int hns_mdio_reset(struct mii_bus *bus) struct hns_mdio_device *mdio_dev = (struct hns_mdio_device *)bus->priv; int ret; - if (!mdio_dev->sys_vbase) { + if (!mdio_dev->subctrl_vbase) { dev_err(&bus->dev, "mdio sys ctl reg has not maped\n"); return -ENODEV; }
@@ -455,13 +457,12 @@ static int hns_mdio_probe(struct platform_device *pdev) return ret; } - res = platform_get_resource(pdev, IORESOURCE_MEM, 1); - mdio_dev->sys_vbase = devm_ioremap_resource(&pdev->dev, res); - if (IS_ERR(mdio_dev->sys_vbase)) { - ret = PTR_ERR(mdio_dev->sys_vbase); - return ret; + mdio_dev->subctrl_vbase = + syscon_node_to_regmap(of_parse_phandle(np, "subctrl_vbase", 0)); + if (IS_ERR(mdio_dev->subctrl_vbase)) { + dev_warn(&pdev->dev, "no syscon hisilicon,peri-c-subctrl\n"); + mdio_dev->subctrl_vbase = NULL; } - new_bus->irq = devm_kcalloc(&pdev->dev, PHY_MAX_ADDR, sizeof(int), GFP_KERNEL); if (!new_bus->irq)
--
1.9.1