/* http://bcm-v4.sipsolutions.net/mac-gbit/gmac/gmac_enable */
static void bgmac_enable(struct bgmac *bgmac)
{
struct bcma_chipinfo *ci = &bgmac->core->bus->chipinfo;
u32 cmdcfg;
u32 mode;
u32 rxq_ctl;
u32 fl_ctl;
u16 bp_clk;
u8 mdp;
cmdcfg = bgmac_read(bgmac, BGMAC_CMDCFG);
bgmac_cmdcfg_maskset(bgmac, ~(BGMAC_CMDCFG_TE | BGMAC_CMDCFG_RE),
BGMAC_CMDCFG_SR(bgmac->core->id.rev), true);
udelay(2);
cmdcfg |= BGMAC_CMDCFG_TE | BGMAC_CMDCFG_RE;
bgmac_write(bgmac, BGMAC_CMDCFG, cmdcfg);
mode = (bgmac_read(bgmac, BGMAC_DEV_STATUS) & BGMAC_DS_MM_MASK) >>
BGMAC_DS_MM_SHIFT;
if (ci->id != BCMA_CHIP_ID_BCM47162 || mode != 0)
bgmac_set(bgmac, BCMA_CLKCTLST, BCMA_CLKCTLST_FORCEHT);
if (ci->id == BCMA_CHIP_ID_BCM47162 && mode == 2)
bcma_chipco_chipctl_maskset(&bgmac->core->bus->drv_cc, 1, ~0,
BGMAC_CHIPCTL_1_RXC_DLL_BYPASS);
switch (ci->id) {
case BCMA_CHIP_ID_BCM5357:
case BCMA_CHIP_ID_BCM4749:
case BCMA_CHIP_ID_BCM53572:
case BCMA_CHIP_ID_BCM4716:
case BCMA_CHIP_ID_BCM47162:
fl_ctl = 0x03cb04cb;
if (ci->id == BCMA_CHIP_ID_BCM5357 ||
ci->id == BCMA_CHIP_ID_BCM4749 ||
ci->id == BCMA_CHIP_ID_BCM53572)
fl_ctl = 0x2300e1;
bgmac_write(bgmac, BGMAC_FLOW_CTL_THRESH, fl_ctl);
bgmac_write(bgmac, BGMAC_PAUSE_CTL, 0x27fff);
break;
}
if (ci->id != BCMA_CHIP_ID_BCM4707 &&
ci->id != BCMA_CHIP_ID_BCM53018) {
rxq_ctl = bgmac_read(bgmac, BGMAC_RXQ_CTL);
rxq_ctl &= ~BGMAC_RXQ_CTL_MDP_MASK;
bp_clk = bcma_pmu_get_bus_clock(&bgmac->core->bus->drv_cc) /
1000000;
mdp = (bp_clk * 128 / 1000) - 3;
rxq_ctl |= (mdp << BGMAC_RXQ_CTL_MDP_SHIFT);
bgmac_write(bgmac, BGMAC_RXQ_CTL, rxq_ctl);
}
}
static u32 bcma_bgmac_get_bus_clock(struct bgmac *bgmac)
{
struct bcma_drv_cc *cc = &bgmac->bcma.core->bus->drv_cc;
return bcma_pmu_get_bus_clock(cc);
}
