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hw/net: cadence_gem: Add a new 'phy-addr' property 

At present the PHY address of the PHY connected to GEM is hard-coded
to either 23 (BOARD_PHY_ADDRESS) or 0. This might not be the case for
all boards. Add a new 'phy-addr' property so that board can specify
the PHY address for each GEM instance.

Signed-off-by: Bin Meng <bin.meng@windriver.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <1598924352-89526-12-git-send-email-bmeng.cn@gmail.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
This commit is contained in:
Bin Meng 2020-09-01 09:39:06 +08:00 committed by Alistair Francis
parent 7124e27bb8
commit 64ac13633f
2 changed files with 5 additions and 2 deletions
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5
hw/net/cadence_gem.c
View File

@ -1446,7 +1446,7 @@ static uint64_t gem_read(void *opaque, hwaddr offset, unsigned size)
uint32_t phy_addr, reg_num;
phy_addr = (retval & GEM_PHYMNTNC_ADDR) >> GEM_PHYMNTNC_ADDR_SHFT;
if (phy_addr == BOARD_PHY_ADDRESS || phy_addr == 0) {
if (phy_addr == s->phy_addr || phy_addr == 0) {
reg_num = (retval & GEM_PHYMNTNC_REG) >> GEM_PHYMNTNC_REG_SHIFT;
retval &= 0xFFFF0000;
retval |= gem_phy_read(s, reg_num);
@ -1569,7 +1569,7 @@ static void gem_write(void *opaque, hwaddr offset, uint64_t val,
uint32_t phy_addr, reg_num;
phy_addr = (val & GEM_PHYMNTNC_ADDR) >> GEM_PHYMNTNC_ADDR_SHFT;
if (phy_addr == BOARD_PHY_ADDRESS || phy_addr == 0) {
if (phy_addr == s->phy_addr || phy_addr == 0) {
reg_num = (val & GEM_PHYMNTNC_REG) >> GEM_PHYMNTNC_REG_SHIFT;
gem_phy_write(s, reg_num, val);
}
@ -1682,6 +1682,7 @@ static Property gem_properties[] = {
DEFINE_NIC_PROPERTIES(CadenceGEMState, conf),
DEFINE_PROP_UINT32("revision", CadenceGEMState, revision,
GEM_MODID_VALUE),
DEFINE_PROP_UINT8("phy-addr", CadenceGEMState, phy_addr, BOARD_PHY_ADDRESS),
DEFINE_PROP_UINT8("num-priority-queues", CadenceGEMState,
num_priority_queues, 1),
DEFINE_PROP_UINT8("num-type1-screeners", CadenceGEMState,

2
include/hw/net/cadence_gem.h
View File

@ -73,6 +73,8 @@ typedef struct CadenceGEMState {
/* Mask of register bits which are write 1 to clear */
uint32_t regs_w1c[CADENCE_GEM_MAXREG];
/* PHY address */
uint8_t phy_addr;
/* PHY registers backing store */
uint16_t phy_regs[32];