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Improve Rockchip's integration of if_dwc

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- Do not rely on U-Boot for clocks configuration, enable and set frequencies
    in the driver's attach method.
- Adjust MAC settings according to detected linespeed on RK3399 and RK3328.
- Add support for RMII PHY mode on RK3328.

Reviewed by:	manu
Differential Revision:	https://reviews.freebsd.org/D26006
This commit is contained in:
Oleksandr Tymoshenko 2020-08-10 19:37:06 +00:00
parent 25e42ee217
commit 824cfb4729
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=364088
5 changed files with 527 additions and 56 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

540
sys/arm64/rockchip/if_dwc_rk.c
View File

@ -23,7 +23,7 @@
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
@ -33,94 +33,347 @@ __FBSDID("$FreeBSD$");
#include <sys/bus.h>
#include <sys/kernel.h>
#include <sys/module.h>
#include <sys/socket.h>
#include <machine/bus.h>
#include <net/if.h>
#include <net/if_media.h>
#include <dev/dwc/if_dwc.h>
#include <dev/dwc/if_dwcvar.h>
#include <dev/ofw/ofw_bus.h>
#include <dev/ofw/ofw_bus_subr.h>
#include <dev/extres/clk/clk.h>
#include <dev/extres/hwreset/hwreset.h>
#include <dev/extres/regulator/regulator.h>
#include <dev/extres/syscon/syscon.h>
#include "if_dwc_if.h"
#include "syscon_if.h"
#include "if_dwc_if.h"
#define RK3328_GRF_MAC_CON0 0x0900
#define RK3328_GRF_MAC_CON0_TX_MASK 0x7F
#define RK3328_GRF_MAC_CON0_TX_SHIFT 0
#define RK3328_GRF_MAC_CON0_RX_MASK 0x7F
#define RK3328_GRF_MAC_CON0_RX_SHIFT 7
#define MAC_CON0_GMAC2IO_TX_DL_CFG_MASK 0x7F
#define MAC_CON0_GMAC2IO_TX_DL_CFG_SHIFT 0
#define MAC_CON0_GMAC2IO_RX_DL_CFG_MASK 0x7F
#define MAC_CON0_GMAC2IO_RX_DL_CFG_SHIFT 7
#define RK3328_GRF_MAC_CON1 0x0904
#define RK3328_GRF_MAC_CON1_RX_ENA (1 << 1)
#define RK3328_GRF_MAC_CON1_TX_ENA (1 << 0)
#define MAC_CON1_GMAC2IO_GMAC_TXCLK_DLY_ENA (1 << 0)
#define MAC_CON1_GMAC2IO_GMAC_RXCLK_DLY_ENA (1 << 1)
#define MAC_CON1_GMAC2IO_GMII_CLK_SEL_MASK (3 << 11)
#define MAC_CON1_GMAC2IO_GMII_CLK_SEL_125 (0 << 11)
#define MAC_CON1_GMAC2IO_GMII_CLK_SEL_25 (3 << 11)
#define MAC_CON1_GMAC2IO_GMII_CLK_SEL_2_5 (2 << 11)
#define MAC_CON1_GMAC2IO_RMII_MODE_MASK (1 << 9)
#define MAC_CON1_GMAC2IO_RMII_MODE (1 << 9)
#define MAC_CON1_GMAC2IO_INTF_SEL_MASK (7 << 4)
#define MAC_CON1_GMAC2IO_INTF_RMII (4 << 4)
#define MAC_CON1_GMAC2IO_INTF_RGMII (1 << 4)
#define MAC_CON1_GMAC2IO_RMII_CLK_SEL_MASK (1 << 7)
#define MAC_CON1_GMAC2IO_RMII_CLK_SEL_25 (1 << 7)
#define MAC_CON1_GMAC2IO_RMII_CLK_SEL_2_5 (0 << 7)
#define MAC_CON1_GMAC2IO_MAC_SPEED_MASK (1 << 2)
#define MAC_CON1_GMAC2IO_MAC_SPEED_100 (1 << 2)
#define MAC_CON1_GMAC2IO_MAC_SPEED_10 (0 << 2)
#define RK3328_GRF_MAC_CON2 0x0908
#define RK3328_GRF_MACPHY_CON0 0x0B00
#define MACPHY_CON0_CLK_50M_MASK (1 << 14)
#define MACPHY_CON0_CLK_50M (1 << 14)
#define MACPHY_CON0_RMII_MODE_MASK (3 << 6)
#define MACPHY_CON0_RMII_MODE (1 << 6)
#define RK3328_GRF_MACPHY_CON1 0x0B04
#define MACPHY_CON1_RMII_MODE_MASK (1 << 9)
#define MACPHY_CON1_RMII_MODE (1 << 9)
#define RK3328_GRF_MACPHY_CON2 0x0B08
#define RK3328_GRF_MACPHY_CON3 0x0B0C
#define RK3328_GRF_MACPHY_STATUS 0x0B10
#define RK3399_GRF_SOC_CON5 0xc214
#define SOC_CON5_GMAC_CLK_SEL_MASK (3 << 4)
#define SOC_CON5_GMAC_CLK_SEL_125 (0 << 4)
#define SOC_CON5_GMAC_CLK_SEL_25 (3 << 4)
#define SOC_CON5_GMAC_CLK_SEL_2_5 (2 << 4)
#define RK3399_GRF_SOC_CON6 0xc218
#define SOC_CON6_GMAC_TXCLK_DLY_ENA (1 << 7)
#define SOC_CON6_TX_DL_CFG_MASK 0x7F
#define SOC_CON6_TX_DL_CFG_SHIFT 0
#define SOC_CON6_RX_DL_CFG_MASK 0x7F
#define SOC_CON6_GMAC_RXCLK_DLY_ENA (1 << 15)
#define SOC_CON6_RX_DL_CFG_SHIFT 8
struct if_dwc_rk_softc;
typedef void (*if_dwc_rk_set_delaysfn_t)(struct if_dwc_rk_softc *);
typedef int (*if_dwc_rk_set_speedfn_t)(struct if_dwc_rk_softc *, int);
typedef void (*if_dwc_rk_set_phy_modefn_t)(struct if_dwc_rk_softc *);
typedef void (*if_dwc_rk_phy_powerupfn_t)(struct if_dwc_rk_softc *);
struct if_dwc_rk_ops {
if_dwc_rk_set_delaysfn_t set_delays;
if_dwc_rk_set_speedfn_t set_speed;
if_dwc_rk_set_phy_modefn_t set_phy_mode;
if_dwc_rk_phy_powerupfn_t phy_powerup;
};
struct if_dwc_rk_softc {
struct dwc_softc base;
uint32_t tx_delay;
uint32_t rx_delay;
bool integrated_phy;
bool clock_in;
phandle_t phy_node;
struct syscon *grf;
struct if_dwc_rk_ops *ops;
/* Common clocks */
clk_t mac_clk_rx;
clk_t mac_clk_tx;
clk_t aclk_mac;
clk_t pclk_mac;
clk_t clk_stmmaceth;
/* RMII clocks */
clk_t clk_mac_ref;
clk_t clk_mac_refout;
/* PHY clock */
clk_t clk_phy;
};
static void rk3328_set_delays(struct if_dwc_rk_softc *sc);
static int rk3328_set_speed(struct if_dwc_rk_softc *sc, int speed);
static void rk3328_set_phy_mode(struct if_dwc_rk_softc *sc);
static void rk3328_phy_powerup(struct if_dwc_rk_softc *sc);
static void rk3399_set_delays(struct if_dwc_rk_softc *sc);
static int rk3399_set_speed(struct if_dwc_rk_softc *sc, int speed);
static struct if_dwc_rk_ops rk3288_ops = {
};
static struct if_dwc_rk_ops rk3328_ops = {
.set_delays = rk3328_set_delays,
.set_speed = rk3328_set_speed,
.set_phy_mode = rk3328_set_phy_mode,
.phy_powerup = rk3328_phy_powerup,
};
static struct if_dwc_rk_ops rk3399_ops = {
.set_delays = rk3399_set_delays,
.set_speed = rk3399_set_speed,
};
static struct ofw_compat_data compat_data[] = {
{"rockchip,rk3288-gmac", 1},
{"rockchip,rk3328-gmac", 1},
{"rockchip,rk3399-gmac", 1},
{"rockchip,rk3288-gmac", (uintptr_t)&rk3288_ops},
{"rockchip,rk3328-gmac", (uintptr_t)&rk3328_ops},
{"rockchip,rk3399-gmac", (uintptr_t)&rk3399_ops},
{NULL, 0}
};
static void
rk3328_set_delays(struct syscon *grf, phandle_t node)
rk3328_set_delays(struct if_dwc_rk_softc *sc)
{
uint32_t reg;
uint32_t tx, rx;
if (OF_getencprop(node, "tx_delay", &tx, sizeof(tx)) <= 0)
tx = 0x30;
if (OF_getencprop(node, "rx_delay", &rx, sizeof(rx)) <= 0)
rx = 0x10;
if (sc->base.phy_mode != PHY_MODE_RGMII)
return;
if (bootverbose)
printf("setting RK3328 RX/TX delays: %d/%d\n", rx, tx);
tx = ((tx & RK3328_GRF_MAC_CON0_TX_MASK) <<
RK3328_GRF_MAC_CON0_TX_SHIFT);
rx = ((rx & RK3328_GRF_MAC_CON0_TX_MASK) <<
RK3328_GRF_MAC_CON0_RX_SHIFT);
reg = SYSCON_READ_4(sc->grf, RK3328_GRF_MAC_CON0);
tx = ((reg >> MAC_CON0_GMAC2IO_TX_DL_CFG_SHIFT) & MAC_CON0_GMAC2IO_TX_DL_CFG_MASK);
rx = ((reg >> MAC_CON0_GMAC2IO_RX_DL_CFG_SHIFT) & MAC_CON0_GMAC2IO_RX_DL_CFG_MASK);
SYSCON_WRITE_4(grf, RK3328_GRF_MAC_CON0, tx | rx | 0xFFFF0000);
SYSCON_WRITE_4(grf, RK3328_GRF_MAC_CON1, RK3328_GRF_MAC_CON1_TX_ENA | RK3328_GRF_MAC_CON1_RX_ENA |
((RK3328_GRF_MAC_CON1_TX_ENA | RK3328_GRF_MAC_CON1_RX_ENA) << 16));
reg = SYSCON_READ_4(sc->grf, RK3328_GRF_MAC_CON1);
if (bootverbose) {
device_printf(sc->base.dev, "current delays settings: tx=%u(%s) rx=%u(%s)\n",
tx, ((reg & MAC_CON1_GMAC2IO_GMAC_TXCLK_DLY_ENA) ? "enabled" : "disabled"),
rx, ((reg & MAC_CON1_GMAC2IO_GMAC_RXCLK_DLY_ENA) ? "enabled" : "disabled"));
device_printf(sc->base.dev, "setting new RK3328 RX/TX delays: %d/%d\n",
sc->tx_delay, sc->rx_delay);
}
reg = (MAC_CON1_GMAC2IO_GMAC_TXCLK_DLY_ENA | MAC_CON1_GMAC2IO_GMAC_RXCLK_DLY_ENA) << 16;
reg |= (MAC_CON1_GMAC2IO_GMAC_TXCLK_DLY_ENA | MAC_CON1_GMAC2IO_GMAC_RXCLK_DLY_ENA);
SYSCON_WRITE_4(sc->grf, RK3328_GRF_MAC_CON1, reg);
reg = 0xffff << 16;
reg |= ((sc->tx_delay & MAC_CON0_GMAC2IO_TX_DL_CFG_MASK) <<
MAC_CON0_GMAC2IO_TX_DL_CFG_SHIFT);
reg |= ((sc->rx_delay & MAC_CON0_GMAC2IO_TX_DL_CFG_MASK) <<
MAC_CON0_GMAC2IO_RX_DL_CFG_SHIFT);
SYSCON_WRITE_4(sc->grf, RK3328_GRF_MAC_CON0, reg);
}
#define RK3399_GRF_SOC_CON6 0xc218
#define RK3399_GRF_SOC_CON6_TX_ENA (1 << 7)
#define RK3399_GRF_SOC_CON6_TX_MASK 0x7F
#define RK3399_GRF_SOC_CON6_TX_SHIFT 0
#define RK3399_GRF_SOC_CON6_RX_MASK 0x7F
#define RK3399_GRF_SOC_CON6_RX_ENA (1 << 15)
#define RK3399_GRF_SOC_CON6_RX_SHIFT 8
static int
rk3328_set_speed(struct if_dwc_rk_softc *sc, int speed)
{
uint32_t reg;
switch (sc->base.phy_mode) {
case PHY_MODE_RGMII:
switch (speed) {
case IFM_1000_T:
case IFM_1000_SX:
reg = MAC_CON1_GMAC2IO_GMII_CLK_SEL_125;
break;
case IFM_100_TX:
reg = MAC_CON1_GMAC2IO_GMII_CLK_SEL_25;
break;
case IFM_10_T:
reg = MAC_CON1_GMAC2IO_GMII_CLK_SEL_2_5;
break;
default:
device_printf(sc->base.dev, "unsupported RGMII media %u\n", speed);
return (-1);
}
SYSCON_WRITE_4(sc->grf, RK3328_GRF_MAC_CON1,
((MAC_CON1_GMAC2IO_GMII_CLK_SEL_MASK << 16) | reg));
break;
case PHY_MODE_RMII:
switch (speed) {
case IFM_100_TX:
reg = MAC_CON1_GMAC2IO_RMII_CLK_SEL_25 |
MAC_CON1_GMAC2IO_MAC_SPEED_100;
break;
case IFM_10_T:
reg = MAC_CON1_GMAC2IO_RMII_CLK_SEL_2_5 |
MAC_CON1_GMAC2IO_MAC_SPEED_10;
break;
default:
device_printf(sc->base.dev, "unsupported RMII media %u\n", speed);
return (-1);
}
SYSCON_WRITE_4(sc->grf,
sc->integrated_phy ? RK3328_GRF_MAC_CON2 : RK3328_GRF_MAC_CON1,
reg |
((MAC_CON1_GMAC2IO_RMII_CLK_SEL_MASK | MAC_CON1_GMAC2IO_MAC_SPEED_MASK) << 16));
break;
}
return (0);
}
static void
rk3399_set_delays(struct syscon *grf, phandle_t node)
rk3328_set_phy_mode(struct if_dwc_rk_softc *sc)
{
uint32_t tx, rx;
if (OF_getencprop(node, "tx_delay", &tx, sizeof(tx)) <= 0)
tx = 0x30;
if (OF_getencprop(node, "rx_delay", &rx, sizeof(rx)) <= 0)
rx = 0x10;
switch (sc->base.phy_mode) {
case PHY_MODE_RGMII:
SYSCON_WRITE_4(sc->grf, RK3328_GRF_MAC_CON1,
((MAC_CON1_GMAC2IO_INTF_SEL_MASK | MAC_CON1_GMAC2IO_RMII_MODE_MASK) << 16) |
MAC_CON1_GMAC2IO_INTF_RGMII);
break;
case PHY_MODE_RMII:
SYSCON_WRITE_4(sc->grf, sc->integrated_phy ? RK3328_GRF_MAC_CON2 : RK3328_GRF_MAC_CON1,
((MAC_CON1_GMAC2IO_INTF_SEL_MASK | MAC_CON1_GMAC2IO_RMII_MODE_MASK) << 16) |
MAC_CON1_GMAC2IO_INTF_RMII | MAC_CON1_GMAC2IO_RMII_MODE);
break;
}
}
if (bootverbose)
printf("setting RK3399 RX/TX delays: %d/%d\n", rx, tx);
tx = ((tx & RK3399_GRF_SOC_CON6_TX_MASK) <<
RK3399_GRF_SOC_CON6_TX_SHIFT) | RK3399_GRF_SOC_CON6_TX_ENA;
rx = ((rx & RK3399_GRF_SOC_CON6_TX_MASK) <<
RK3399_GRF_SOC_CON6_RX_SHIFT) | RK3399_GRF_SOC_CON6_RX_ENA;
static void
rk3328_phy_powerup(struct if_dwc_rk_softc *sc)
{
SYSCON_WRITE_4(sc->grf, RK3328_GRF_MACPHY_CON1,
(MACPHY_CON1_RMII_MODE_MASK << 16) |
MACPHY_CON1_RMII_MODE);
}
SYSCON_WRITE_4(grf, RK3399_GRF_SOC_CON6, tx | rx | 0xFFFF0000);
static void
rk3399_set_delays(struct if_dwc_rk_softc *sc)
{
uint32_t reg, tx, rx;
if (sc->base.phy_mode != PHY_MODE_RGMII)
return;
reg = SYSCON_READ_4(sc->grf, RK3399_GRF_SOC_CON6);
tx = ((reg >> SOC_CON6_TX_DL_CFG_SHIFT) & SOC_CON6_TX_DL_CFG_MASK);
rx = ((reg >> SOC_CON6_RX_DL_CFG_SHIFT) & SOC_CON6_RX_DL_CFG_MASK);
if (bootverbose) {
device_printf(sc->base.dev, "current delays settings: tx=%u(%s) rx=%u(%s)\n",
tx, ((reg & SOC_CON6_GMAC_TXCLK_DLY_ENA) ? "enabled" : "disabled"),
rx, ((reg & SOC_CON6_GMAC_RXCLK_DLY_ENA) ? "enabled" : "disabled"));
device_printf(sc->base.dev, "setting new RK3399 RX/TX delays: %d/%d\n",
sc->rx_delay, sc->tx_delay);
}
reg = 0xFFFF << 16;
reg |= ((sc->tx_delay & SOC_CON6_TX_DL_CFG_MASK) <<
SOC_CON6_TX_DL_CFG_SHIFT);
reg |= ((sc->rx_delay & SOC_CON6_RX_DL_CFG_MASK) <<
SOC_CON6_RX_DL_CFG_SHIFT);
reg |= SOC_CON6_GMAC_TXCLK_DLY_ENA | SOC_CON6_GMAC_RXCLK_DLY_ENA;
SYSCON_WRITE_4(sc->grf, RK3399_GRF_SOC_CON6, reg);
}
static int
rk3399_set_speed(struct if_dwc_rk_softc *sc, int speed)
{
uint32_t reg;
switch (speed) {
case IFM_1000_T:
case IFM_1000_SX:
reg = SOC_CON5_GMAC_CLK_SEL_125;
break;
case IFM_100_TX:
reg = SOC_CON5_GMAC_CLK_SEL_25;
break;
case IFM_10_T:
reg = SOC_CON5_GMAC_CLK_SEL_2_5;
break;
default:
device_printf(sc->base.dev, "unsupported media %u\n", speed);
return (-1);
}
SYSCON_WRITE_4(sc->grf, RK3399_GRF_SOC_CON5,
((SOC_CON5_GMAC_CLK_SEL_MASK << 16) | reg));
return (0);
}
static int
if_dwc_rk_sysctl_delays(SYSCTL_HANDLER_ARGS)
{
struct if_dwc_rk_softc *sc;
int rv;
uint32_t rxtx;
sc = arg1;
rxtx = ((sc->rx_delay << 8) | sc->tx_delay);
rv = sysctl_handle_int(oidp, &rxtx, 0, req);
if (rv != 0 || req->newptr == NULL)
return (rv);
sc->tx_delay = rxtx & 0xff;
sc->rx_delay = (rxtx >> 8) & 0xff;
if (sc->ops->set_delays)
sc->ops->set_delays(sc);
return (0);
}
static int
if_dwc_rk_init_sysctl(struct if_dwc_rk_softc *sc)
{
struct sysctl_oid *child;
struct sysctl_ctx_list *ctx_list;
ctx_list = device_get_sysctl_ctx(sc->base.dev);
child = device_get_sysctl_tree(sc->base.dev);
SYSCTL_ADD_PROC(ctx_list,
SYSCTL_CHILDREN(child), OID_AUTO, "delays",
CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_RWTUN | CTLFLAG_MPSAFE, sc, 0,
if_dwc_rk_sysctl_delays, "", "RGMII RX/TX delays: ((rx << 8) | tx)");
return (0);
}
static int
@ -136,26 +389,189 @@ if_dwc_rk_probe(device_t dev)
return (BUS_PROBE_DEFAULT);
}
static int
if_dwc_rk_init_clocks(device_t dev)
{
struct if_dwc_rk_softc *sc;
int error;
sc = device_get_softc(dev);
error = clk_set_assigned(dev, ofw_bus_get_node(dev));
if (error != 0) {
device_printf(dev, "clk_set_assigned failed\n");
return (error);
}
/* Enable clocks */
error = clk_get_by_ofw_name(dev, 0, "stmmaceth", &sc->clk_stmmaceth);
if (error != 0) {
device_printf(dev, "could not find clock stmmaceth\n");
return (error);
}
if (clk_get_by_ofw_name(dev, 0, "mac_clk_rx", &sc->mac_clk_rx) != 0) {
device_printf(sc->base.dev, "could not get mac_clk_rx clock\n");
sc->mac_clk_rx = NULL;
}
if (clk_get_by_ofw_name(dev, 0, "mac_clk_tx", &sc->mac_clk_tx) != 0) {
device_printf(sc->base.dev, "could not get mac_clk_tx clock\n");
sc->mac_clk_tx = NULL;
}
if (clk_get_by_ofw_name(dev, 0, "aclk_mac", &sc->aclk_mac) != 0) {
device_printf(sc->base.dev, "could not get aclk_mac clock\n");
sc->aclk_mac = NULL;
}
if (clk_get_by_ofw_name(dev, 0, "pclk_mac", &sc->pclk_mac) != 0) {
device_printf(sc->base.dev, "could not get pclk_mac clock\n");
sc->pclk_mac = NULL;
}
if (sc->base.phy_mode == PHY_MODE_RGMII) {
if (clk_get_by_ofw_name(dev, 0, "clk_mac_ref", &sc->clk_mac_ref) != 0) {
device_printf(sc->base.dev, "could not get clk_mac_ref clock\n");
sc->clk_mac_ref = NULL;
}
if (!sc->clock_in) {
if (clk_get_by_ofw_name(dev, 0, "clk_mac_refout", &sc->clk_mac_refout) != 0) {
device_printf(sc->base.dev, "could not get clk_mac_refout clock\n");
sc->clk_mac_refout = NULL;
}
clk_set_freq(sc->clk_stmmaceth, 50000000, 0);
}
}
if ((sc->phy_node != 0) && sc->integrated_phy) {
if (clk_get_by_ofw_index(dev, sc->phy_node, 0, &sc->clk_phy) != 0) {
device_printf(sc->base.dev, "could not get PHY clock\n");
sc->clk_phy = NULL;
}
if (sc->clk_phy) {
clk_set_freq(sc->clk_phy, 50000000, 0);
}
}
if (sc->base.phy_mode == PHY_MODE_RMII) {
if (sc->mac_clk_rx)
clk_enable(sc->mac_clk_rx);
if (sc->clk_mac_ref)
clk_enable(sc->clk_mac_ref);
if (sc->clk_mac_refout)
clk_enable(sc->clk_mac_refout);
}
if (sc->clk_phy)
clk_enable(sc->clk_phy);
if (sc->aclk_mac)
clk_enable(sc->aclk_mac);
if (sc->pclk_mac)
clk_enable(sc->pclk_mac);
if (sc->mac_clk_tx)
clk_enable(sc->mac_clk_tx);
DELAY(50);
return (0);
}
static int
if_dwc_rk_init(device_t dev)
{
struct if_dwc_rk_softc *sc;
phandle_t node;
struct syscon *grf = NULL;
uint32_t rx, tx;
int err;
pcell_t phy_handle;
char *clock_in_out;
hwreset_t phy_reset;
regulator_t phy_supply;
sc = device_get_softc(dev);
node = ofw_bus_get_node(dev);
sc->ops = (struct if_dwc_rk_ops *)ofw_bus_search_compatible(dev, compat_data)->ocd_data;
if (OF_hasprop(node, "rockchip,grf") &&
syscon_get_by_ofw_property(dev, node,
"rockchip,grf", &grf) != 0) {
"rockchip,grf", &sc->grf) != 0) {
device_printf(dev, "cannot get grf driver handle\n");
return (ENXIO);
}
if (ofw_bus_is_compatible(dev, "rockchip,rk3399-gmac"))
rk3399_set_delays(grf, node);
else if (ofw_bus_is_compatible(dev, "rockchip,rk3328-gmac"))
rk3328_set_delays(grf, node);
if (OF_getencprop(node, "tx_delay", &tx, sizeof(tx)) <= 0)
tx = 0x30;
if (OF_getencprop(node, "rx_delay", &rx, sizeof(rx)) <= 0)
rx = 0x10;
sc->tx_delay = tx;
sc->rx_delay = rx;
/* Mode should be set according to dtb property */
sc->clock_in = true;
if (OF_getprop_alloc(node, "clock_in_out", (void **)&clock_in_out)) {
if (strcmp(clock_in_out, "input") == 0)
sc->clock_in = true;
else
sc->clock_in = false;
OF_prop_free(clock_in_out);
}
if (OF_getencprop(node, "phy-handle", (void *)&phy_handle,
sizeof(phy_handle)) > 0)
sc->phy_node = OF_node_from_xref(phy_handle);
if (sc->phy_node)
sc->integrated_phy = OF_hasprop(sc->phy_node, "phy-is-integrated");
if (sc->integrated_phy)
device_printf(sc->base.dev, "PHY is integrated\n");
if_dwc_rk_init_clocks(dev);
if (sc->ops->set_phy_mode)
sc->ops->set_phy_mode(sc);
if (sc->ops->set_delays)
sc->ops->set_delays(sc);
/*
* this also sets delays if tunable is defined
*/
err = if_dwc_rk_init_sysctl(sc);
if (err != 0)
return (err);
if (regulator_get_by_ofw_property(sc->base.dev, 0,
"phy-supply", &phy_supply) == 0) {
if (regulator_enable(phy_supply)) {
device_printf(sc->base.dev,
"cannot enable 'phy' regulator\n");
}
}
else
device_printf(sc->base.dev, "no phy-supply property\n");
/* Power up */
if (sc->integrated_phy) {
if (sc->ops->phy_powerup)
sc->ops->phy_powerup(sc);
SYSCON_WRITE_4(sc->grf, RK3328_GRF_MACPHY_CON0,
(MACPHY_CON0_CLK_50M_MASK << 16) |
MACPHY_CON0_CLK_50M);
SYSCON_WRITE_4(sc->grf, RK3328_GRF_MACPHY_CON0,
(MACPHY_CON0_RMII_MODE_MASK << 16) |
MACPHY_CON0_RMII_MODE);
SYSCON_WRITE_4(sc->grf, RK3328_GRF_MACPHY_CON2, 0xffff1234);
SYSCON_WRITE_4(sc->grf, RK3328_GRF_MACPHY_CON3, 0x003f0035);
if (hwreset_get_by_ofw_idx(dev, sc->phy_node, 0, &phy_reset) == 0) {
hwreset_assert(phy_reset);
DELAY(20);
hwreset_deassert(phy_reset);
DELAY(20);
}
}
return (0);
}
@ -175,12 +591,26 @@ if_dwc_rk_mii_clk(device_t dev)
return (GMAC_MII_CLK_150_250M_DIV102);
}
static int
if_dwc_rk_set_speed(device_t dev, int speed)
{
struct if_dwc_rk_softc *sc;
sc = device_get_softc(dev);
if (sc->ops->set_speed)
return sc->ops->set_speed(sc, speed);
return (0);
}
static device_method_t if_dwc_rk_methods[] = {
DEVMETHOD(device_probe, if_dwc_rk_probe),
DEVMETHOD(if_dwc_init, if_dwc_rk_init),
DEVMETHOD(if_dwc_mac_type, if_dwc_rk_mac_type),
DEVMETHOD(if_dwc_mii_clk, if_dwc_rk_mii_clk),
DEVMETHOD(if_dwc_set_speed, if_dwc_rk_set_speed),
DEVMETHOD_END
};
@ -190,6 +620,6 @@ static devclass_t dwc_rk_devclass;
extern driver_t dwc_driver;
DEFINE_CLASS_1(dwc, dwc_rk_driver, if_dwc_rk_methods,
sizeof(struct dwc_softc), dwc_driver);
sizeof(struct if_dwc_rk_softc), dwc_driver);
DRIVER_MODULE(dwc_rk, simplebus, dwc_rk_driver, dwc_rk_devclass, 0, 0);
MODULE_DEPEND(dwc_rk, dwc, 1, 1, 1);

24
sys/dev/dwc/if_dwc.c
View File

@ -1209,14 +1209,22 @@ dwc_clock_init(device_t dev)
hwreset_t rst;
clk_t clk;
int error;
int64_t freq;
/* Enable clock */
/* Enable clocks */
if (clk_get_by_ofw_name(dev, 0, "stmmaceth", &clk) == 0) {
error = clk_enable(clk);
if (error != 0) {
device_printf(dev, "could not enable main clock\n");
return (error);
}
if (bootverbose) {
clk_get_freq(clk, &freq);
device_printf(dev, "MAC clock(%s) freq: %ld\n", clk_get_name(clk), freq);
}
}
else {
device_printf(dev, "could not find clock stmmaceth\n");
}
/* De-assert reset */
@ -1254,6 +1262,8 @@ dwc_attach(device_t dev)
struct ifnet *ifp;
int error, i;
uint32_t reg;
char *phy_mode;
phandle_t node;
sc = device_get_softc(dev);
sc->dev = dev;
@ -1262,6 +1272,15 @@ dwc_attach(device_t dev)
sc->mii_clk = IF_DWC_MII_CLK(dev);
sc->mactype = IF_DWC_MAC_TYPE(dev);
node = ofw_bus_get_node(dev);
if (OF_getprop_alloc(node, "phy-mode", (void **)&phy_mode)) {
if (strcmp(phy_mode, "rgmii") == 0)
sc->phy_mode = PHY_MODE_RGMII;
if (strcmp(phy_mode, "rmii") == 0)
sc->phy_mode = PHY_MODE_RMII;
OF_prop_free(phy_mode);
}
if (IF_DWC_INIT(dev) != 0)
return (ENXIO);
@ -1475,6 +1494,9 @@ dwc_miibus_statchg(device_t dev)
else
reg &= ~(CONF_DM);
WRITE4(sc, MAC_CONFIGURATION, reg);
IF_DWC_SET_SPEED(dev, IFM_SUBTYPE(mii->mii_media_active));
}
static device_method_t dwc_methods[] = {

4
sys/dev/dwc/if_dwc.h
View File

@ -37,6 +37,10 @@
#ifndef __IF_DWC_H__
#define __IF_DWC_H__
#define PHY_MODE_UNKNOWN 0x0
#define PHY_MODE_RMII 0x1
#define PHY_MODE_RGMII 0x2
#define MAC_CONFIGURATION 0x0
#define CONF_JD (1 << 22) /* jabber timer disable */
#define CONF_BE (1 << 21) /* Frame Burst Enable */

14
sys/dev/dwc/if_dwc_if.m
View File

@ -49,6 +49,12 @@ CODE {
{
return (GMAC_MII_CLK_25_35M_DIV16);
}
static int
if_dwc_default_set_speed(device_t dev, int speed)
{
return (0);
}
};
HEADER {
@ -74,3 +80,11 @@ METHOD int mac_type {
METHOD int mii_clk {
device_t dev;
} DEFAULT if_dwc_default_mii_clk;
#
# Signal media change to a specific hardware
#
METHOD int set_speed {
device_t dev;
int speed;
} DEFAULT if_dwc_default_set_speed;

1
sys/dev/dwc/if_dwcvar.h
View File

@ -71,6 +71,7 @@ struct dwc_softc {
boolean_t is_detaching;
int tx_watchdog_count;
int stats_harvest_count;
int phy_mode;
/* RX */
bus_dma_tag_t rxdesc_tag;