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author | Jean-Christophe Dubois <jcd@tribudubois.net> | 2020-07-03 16:59:41 +0100 |
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committer | Peter Maydell <peter.maydell@linaro.org> | 2020-07-03 16:59:41 +0100 |
commit | 461c51ad4275f199d4b6ff400f39701541529e39 (patch) | |
tree | 7ad8277951405336bda88c61ff8d2e6b77038430 /hw/net/imx_fec.c | |
parent | 4abf70a661a5df3886ac9d7c19c3617fa92b922a (diff) | |
download | qemu-461c51ad4275f199d4b6ff400f39701541529e39.zip qemu-461c51ad4275f199d4b6ff400f39701541529e39.tar.gz qemu-461c51ad4275f199d4b6ff400f39701541529e39.tar.bz2 |
Add a phy-num property to the i.MX FEC emulator
We need a solution to use an Ethernet PHY that is not the first device
on the MDIO bus (device 0 on MDIO bus).
As an example with the i.MX6UL the NXP SOC has 2 Ethernet devices but
only one MDIO bus on which the 2 related PHY are connected but at unique
addresses.
Signed-off-by: Jean-Christophe Dubois <jcd@tribudubois.net>
Message-id: a1a5c0e139d1c763194b8020573dcb6025daeefa.1593296112.git.jcd@tribudubois.net
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Diffstat (limited to 'hw/net/imx_fec.c')
-rw-r--r-- | hw/net/imx_fec.c | 24 |
1 files changed, 17 insertions, 7 deletions
diff --git a/hw/net/imx_fec.c b/hw/net/imx_fec.c index eefedc2..2c14804 100644 --- a/hw/net/imx_fec.c +++ b/hw/net/imx_fec.c @@ -280,12 +280,16 @@ static void imx_phy_reset(IMXFECState *s) static uint32_t imx_phy_read(IMXFECState *s, int reg) { uint32_t val; + uint32_t phy = reg / 32; - if (reg > 31) { - /* we only advertise one phy */ + if (phy != s->phy_num) { + qemu_log_mask(LOG_GUEST_ERROR, "[%s.phy]%s: Bad phy num %u\n", + TYPE_IMX_FEC, __func__, phy); return 0; } + reg %= 32; + switch (reg) { case 0: /* Basic Control */ val = s->phy_control; @@ -331,20 +335,25 @@ static uint32_t imx_phy_read(IMXFECState *s, int reg) break; } - trace_imx_phy_read(val, reg); + trace_imx_phy_read(val, phy, reg); return val; } static void imx_phy_write(IMXFECState *s, int reg, uint32_t val) { - trace_imx_phy_write(val, reg); + uint32_t phy = reg / 32; - if (reg > 31) { - /* we only advertise one phy */ + if (phy != s->phy_num) { + qemu_log_mask(LOG_GUEST_ERROR, "[%s.phy]%s: Bad phy num %u\n", + TYPE_IMX_FEC, __func__, phy); return; } + reg %= 32; + + trace_imx_phy_write(val, phy, reg); + switch (reg) { case 0: /* Basic Control */ if (val & 0x8000) { @@ -926,7 +935,7 @@ static void imx_eth_write(void *opaque, hwaddr offset, uint64_t value, extract32(value, 18, 10))); } else { - /* This a write operation */ + /* This is a write operation */ imx_phy_write(s, extract32(value, 18, 10), extract32(value, 0, 16)); } /* raise the interrupt as the PHY operation is done */ @@ -1315,6 +1324,7 @@ static void imx_eth_realize(DeviceState *dev, Error **errp) static Property imx_eth_properties[] = { DEFINE_NIC_PROPERTIES(IMXFECState, conf), DEFINE_PROP_UINT32("tx-ring-num", IMXFECState, tx_ring_num, 1), + DEFINE_PROP_UINT32("phy-num", IMXFECState, phy_num, 0), DEFINE_PROP_END_OF_LIST(), }; |