mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-11 07:34:31 +00:00
793f2fd2dc
The GMAC in the RK3368 once again is identical to the incarnation in the RK3288 and the RK3399, except for where some of the configuration and control registers are located in the GRF. This adds the RK3368-specific logic necessary to reuse this driver. Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com> Reviewed-by: Simon Glass <sjg@chromium.org> Acked-by: Joe Hershberger <joe.hershberger@ni.com>
312 lines
8.1 KiB
C
312 lines
8.1 KiB
C
/*
|
|
* (C) Copyright 2015 Sjoerd Simons <sjoerd.simons@collabora.co.uk>
|
|
*
|
|
* SPDX-License-Identifier: GPL-2.0+
|
|
*
|
|
* Rockchip GMAC ethernet IP driver for U-Boot
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <dm.h>
|
|
#include <clk.h>
|
|
#include <phy.h>
|
|
#include <syscon.h>
|
|
#include <asm/io.h>
|
|
#include <asm/arch/periph.h>
|
|
#include <asm/arch/clock.h>
|
|
#include <asm/arch/hardware.h>
|
|
#include <asm/arch/grf_rk3288.h>
|
|
#include <asm/arch/grf_rk3368.h>
|
|
#include <asm/arch/grf_rk3399.h>
|
|
#include <dm/pinctrl.h>
|
|
#include <dt-bindings/clock/rk3288-cru.h>
|
|
#include "designware.h"
|
|
|
|
DECLARE_GLOBAL_DATA_PTR;
|
|
|
|
/*
|
|
* Platform data for the gmac
|
|
*
|
|
* dw_eth_pdata: Required platform data for designware driver (must be first)
|
|
*/
|
|
struct gmac_rockchip_platdata {
|
|
struct dw_eth_pdata dw_eth_pdata;
|
|
int tx_delay;
|
|
int rx_delay;
|
|
};
|
|
|
|
struct rk_gmac_ops {
|
|
int (*fix_mac_speed)(struct dw_eth_dev *priv);
|
|
void (*set_to_rgmii)(struct gmac_rockchip_platdata *pdata);
|
|
};
|
|
|
|
|
|
static int gmac_rockchip_ofdata_to_platdata(struct udevice *dev)
|
|
{
|
|
struct gmac_rockchip_platdata *pdata = dev_get_platdata(dev);
|
|
|
|
/* Check the new naming-style first... */
|
|
pdata->tx_delay = dev_read_u32_default(dev, "tx_delay", -ENOENT);
|
|
pdata->rx_delay = dev_read_u32_default(dev, "rx_delay", -ENOENT);
|
|
|
|
/* ... and fall back to the old naming style or default, if necessary */
|
|
if (pdata->tx_delay == -ENOENT)
|
|
pdata->tx_delay = dev_read_u32_default(dev, "tx-delay", 0x30);
|
|
if (pdata->rx_delay == -ENOENT)
|
|
pdata->rx_delay = dev_read_u32_default(dev, "rx-delay", 0x10);
|
|
|
|
return designware_eth_ofdata_to_platdata(dev);
|
|
}
|
|
|
|
static int rk3288_gmac_fix_mac_speed(struct dw_eth_dev *priv)
|
|
{
|
|
struct rk3288_grf *grf;
|
|
int clk;
|
|
|
|
switch (priv->phydev->speed) {
|
|
case 10:
|
|
clk = RK3288_GMAC_CLK_SEL_2_5M;
|
|
break;
|
|
case 100:
|
|
clk = RK3288_GMAC_CLK_SEL_25M;
|
|
break;
|
|
case 1000:
|
|
clk = RK3288_GMAC_CLK_SEL_125M;
|
|
break;
|
|
default:
|
|
debug("Unknown phy speed: %d\n", priv->phydev->speed);
|
|
return -EINVAL;
|
|
}
|
|
|
|
grf = syscon_get_first_range(ROCKCHIP_SYSCON_GRF);
|
|
rk_clrsetreg(&grf->soc_con1, RK3288_GMAC_CLK_SEL_MASK, clk);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int rk3368_gmac_fix_mac_speed(struct dw_eth_dev *priv)
|
|
{
|
|
struct rk3368_grf *grf;
|
|
int clk;
|
|
enum {
|
|
RK3368_GMAC_CLK_SEL_2_5M = 2 << 4,
|
|
RK3368_GMAC_CLK_SEL_25M = 3 << 4,
|
|
RK3368_GMAC_CLK_SEL_125M = 0 << 4,
|
|
RK3368_GMAC_CLK_SEL_MASK = GENMASK(5, 4),
|
|
};
|
|
|
|
switch (priv->phydev->speed) {
|
|
case 10:
|
|
clk = RK3368_GMAC_CLK_SEL_2_5M;
|
|
break;
|
|
case 100:
|
|
clk = RK3368_GMAC_CLK_SEL_25M;
|
|
break;
|
|
case 1000:
|
|
clk = RK3368_GMAC_CLK_SEL_125M;
|
|
break;
|
|
default:
|
|
debug("Unknown phy speed: %d\n", priv->phydev->speed);
|
|
return -EINVAL;
|
|
}
|
|
|
|
grf = syscon_get_first_range(ROCKCHIP_SYSCON_GRF);
|
|
rk_clrsetreg(&grf->soc_con15, RK3368_GMAC_CLK_SEL_MASK, clk);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int rk3399_gmac_fix_mac_speed(struct dw_eth_dev *priv)
|
|
{
|
|
struct rk3399_grf_regs *grf;
|
|
int clk;
|
|
|
|
switch (priv->phydev->speed) {
|
|
case 10:
|
|
clk = RK3399_GMAC_CLK_SEL_2_5M;
|
|
break;
|
|
case 100:
|
|
clk = RK3399_GMAC_CLK_SEL_25M;
|
|
break;
|
|
case 1000:
|
|
clk = RK3399_GMAC_CLK_SEL_125M;
|
|
break;
|
|
default:
|
|
debug("Unknown phy speed: %d\n", priv->phydev->speed);
|
|
return -EINVAL;
|
|
}
|
|
|
|
grf = syscon_get_first_range(ROCKCHIP_SYSCON_GRF);
|
|
rk_clrsetreg(&grf->soc_con5, RK3399_GMAC_CLK_SEL_MASK, clk);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void rk3288_gmac_set_to_rgmii(struct gmac_rockchip_platdata *pdata)
|
|
{
|
|
struct rk3288_grf *grf;
|
|
|
|
grf = syscon_get_first_range(ROCKCHIP_SYSCON_GRF);
|
|
rk_clrsetreg(&grf->soc_con1,
|
|
RK3288_RMII_MODE_MASK | RK3288_GMAC_PHY_INTF_SEL_MASK,
|
|
RK3288_GMAC_PHY_INTF_SEL_RGMII);
|
|
|
|
rk_clrsetreg(&grf->soc_con3,
|
|
RK3288_RXCLK_DLY_ENA_GMAC_MASK |
|
|
RK3288_TXCLK_DLY_ENA_GMAC_MASK |
|
|
RK3288_CLK_RX_DL_CFG_GMAC_MASK |
|
|
RK3288_CLK_TX_DL_CFG_GMAC_MASK,
|
|
RK3288_RXCLK_DLY_ENA_GMAC_ENABLE |
|
|
RK3288_TXCLK_DLY_ENA_GMAC_ENABLE |
|
|
pdata->rx_delay << RK3288_CLK_RX_DL_CFG_GMAC_SHIFT |
|
|
pdata->tx_delay << RK3288_CLK_TX_DL_CFG_GMAC_SHIFT);
|
|
}
|
|
|
|
static void rk3368_gmac_set_to_rgmii(struct gmac_rockchip_platdata *pdata)
|
|
{
|
|
struct rk3368_grf *grf;
|
|
enum {
|
|
RK3368_GMAC_PHY_INTF_SEL_RGMII = 1 << 9,
|
|
RK3368_GMAC_PHY_INTF_SEL_MASK = GENMASK(11, 9),
|
|
RK3368_RMII_MODE_MASK = BIT(6),
|
|
RK3368_RMII_MODE = BIT(6),
|
|
};
|
|
enum {
|
|
RK3368_RXCLK_DLY_ENA_GMAC_MASK = BIT(15),
|
|
RK3368_RXCLK_DLY_ENA_GMAC_DISABLE = 0,
|
|
RK3368_RXCLK_DLY_ENA_GMAC_ENABLE = BIT(15),
|
|
RK3368_TXCLK_DLY_ENA_GMAC_MASK = BIT(7),
|
|
RK3368_TXCLK_DLY_ENA_GMAC_DISABLE = 0,
|
|
RK3368_TXCLK_DLY_ENA_GMAC_ENABLE = BIT(7),
|
|
RK3368_CLK_RX_DL_CFG_GMAC_SHIFT = 8,
|
|
RK3368_CLK_RX_DL_CFG_GMAC_MASK = GENMASK(14, 8),
|
|
RK3368_CLK_TX_DL_CFG_GMAC_SHIFT = 0,
|
|
RK3368_CLK_TX_DL_CFG_GMAC_MASK = GENMASK(6, 0),
|
|
};
|
|
|
|
grf = syscon_get_first_range(ROCKCHIP_SYSCON_GRF);
|
|
rk_clrsetreg(&grf->soc_con15,
|
|
RK3368_RMII_MODE_MASK | RK3368_GMAC_PHY_INTF_SEL_MASK,
|
|
RK3368_GMAC_PHY_INTF_SEL_RGMII);
|
|
|
|
rk_clrsetreg(&grf->soc_con16,
|
|
RK3368_RXCLK_DLY_ENA_GMAC_MASK |
|
|
RK3368_TXCLK_DLY_ENA_GMAC_MASK |
|
|
RK3368_CLK_RX_DL_CFG_GMAC_MASK |
|
|
RK3368_CLK_TX_DL_CFG_GMAC_MASK,
|
|
RK3368_RXCLK_DLY_ENA_GMAC_ENABLE |
|
|
RK3368_TXCLK_DLY_ENA_GMAC_ENABLE |
|
|
pdata->rx_delay << RK3368_CLK_RX_DL_CFG_GMAC_SHIFT |
|
|
pdata->tx_delay << RK3368_CLK_TX_DL_CFG_GMAC_SHIFT);
|
|
}
|
|
|
|
static void rk3399_gmac_set_to_rgmii(struct gmac_rockchip_platdata *pdata)
|
|
{
|
|
struct rk3399_grf_regs *grf;
|
|
|
|
grf = syscon_get_first_range(ROCKCHIP_SYSCON_GRF);
|
|
|
|
rk_clrsetreg(&grf->soc_con5,
|
|
RK3399_GMAC_PHY_INTF_SEL_MASK,
|
|
RK3399_GMAC_PHY_INTF_SEL_RGMII);
|
|
|
|
rk_clrsetreg(&grf->soc_con6,
|
|
RK3399_RXCLK_DLY_ENA_GMAC_MASK |
|
|
RK3399_TXCLK_DLY_ENA_GMAC_MASK |
|
|
RK3399_CLK_RX_DL_CFG_GMAC_MASK |
|
|
RK3399_CLK_TX_DL_CFG_GMAC_MASK,
|
|
RK3399_RXCLK_DLY_ENA_GMAC_ENABLE |
|
|
RK3399_TXCLK_DLY_ENA_GMAC_ENABLE |
|
|
pdata->rx_delay << RK3399_CLK_RX_DL_CFG_GMAC_SHIFT |
|
|
pdata->tx_delay << RK3399_CLK_TX_DL_CFG_GMAC_SHIFT);
|
|
}
|
|
|
|
static int gmac_rockchip_probe(struct udevice *dev)
|
|
{
|
|
struct gmac_rockchip_platdata *pdata = dev_get_platdata(dev);
|
|
struct rk_gmac_ops *ops =
|
|
(struct rk_gmac_ops *)dev_get_driver_data(dev);
|
|
struct clk clk;
|
|
int ret;
|
|
|
|
ret = clk_get_by_index(dev, 0, &clk);
|
|
if (ret)
|
|
return ret;
|
|
|
|
/* Since mac_clk is fed by an external clock we can use 0 here */
|
|
ret = clk_set_rate(&clk, 0);
|
|
if (ret)
|
|
return ret;
|
|
|
|
/* Set to RGMII mode */
|
|
ops->set_to_rgmii(pdata);
|
|
|
|
return designware_eth_probe(dev);
|
|
}
|
|
|
|
static int gmac_rockchip_eth_start(struct udevice *dev)
|
|
{
|
|
struct eth_pdata *pdata = dev_get_platdata(dev);
|
|
struct dw_eth_dev *priv = dev_get_priv(dev);
|
|
struct rk_gmac_ops *ops =
|
|
(struct rk_gmac_ops *)dev_get_driver_data(dev);
|
|
int ret;
|
|
|
|
ret = designware_eth_init(priv, pdata->enetaddr);
|
|
if (ret)
|
|
return ret;
|
|
ret = ops->fix_mac_speed(priv);
|
|
if (ret)
|
|
return ret;
|
|
ret = designware_eth_enable(priv);
|
|
if (ret)
|
|
return ret;
|
|
|
|
return 0;
|
|
}
|
|
|
|
const struct eth_ops gmac_rockchip_eth_ops = {
|
|
.start = gmac_rockchip_eth_start,
|
|
.send = designware_eth_send,
|
|
.recv = designware_eth_recv,
|
|
.free_pkt = designware_eth_free_pkt,
|
|
.stop = designware_eth_stop,
|
|
.write_hwaddr = designware_eth_write_hwaddr,
|
|
};
|
|
|
|
const struct rk_gmac_ops rk3288_gmac_ops = {
|
|
.fix_mac_speed = rk3288_gmac_fix_mac_speed,
|
|
.set_to_rgmii = rk3288_gmac_set_to_rgmii,
|
|
};
|
|
|
|
const struct rk_gmac_ops rk3368_gmac_ops = {
|
|
.fix_mac_speed = rk3368_gmac_fix_mac_speed,
|
|
.set_to_rgmii = rk3368_gmac_set_to_rgmii,
|
|
};
|
|
|
|
const struct rk_gmac_ops rk3399_gmac_ops = {
|
|
.fix_mac_speed = rk3399_gmac_fix_mac_speed,
|
|
.set_to_rgmii = rk3399_gmac_set_to_rgmii,
|
|
};
|
|
|
|
static const struct udevice_id rockchip_gmac_ids[] = {
|
|
{ .compatible = "rockchip,rk3288-gmac",
|
|
.data = (ulong)&rk3288_gmac_ops },
|
|
{ .compatible = "rockchip,rk3368-gmac",
|
|
.data = (ulong)&rk3368_gmac_ops },
|
|
{ .compatible = "rockchip,rk3399-gmac",
|
|
.data = (ulong)&rk3399_gmac_ops },
|
|
{ }
|
|
};
|
|
|
|
U_BOOT_DRIVER(eth_gmac_rockchip) = {
|
|
.name = "gmac_rockchip",
|
|
.id = UCLASS_ETH,
|
|
.of_match = rockchip_gmac_ids,
|
|
.ofdata_to_platdata = gmac_rockchip_ofdata_to_platdata,
|
|
.probe = gmac_rockchip_probe,
|
|
.ops = &gmac_rockchip_eth_ops,
|
|
.priv_auto_alloc_size = sizeof(struct dw_eth_dev),
|
|
.platdata_auto_alloc_size = sizeof(struct gmac_rockchip_platdata),
|
|
.flags = DM_FLAG_ALLOC_PRIV_DMA,
|
|
};
|