[PATCH 5/5] bgmac: add support for Northstar SoC (BCM4707, BCM53018)
From: Hauke Mehrtens <hauke@hauke-m.de>
Date: 2014-01-02 19:19:22
Subsystem:
broadcom iproc gbit ethernet driver, networking drivers, the rest · Maintainers:
Rafał Miłecki, Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
This adds support for the Northstar SoC. This SoC does not have a PMU in bcma and no register on it should be called. In addition it support 2.5 GBit/s Ethernet to the PHY. This GMAC core is not fully working there are still problems with the DMA controller. Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de> --- drivers/net/ethernet/broadcom/bgmac.c | 46 +++++++++++++++++++++++---------- drivers/net/ethernet/broadcom/bgmac.h | 1 + 2 files changed, 34 insertions(+), 13 deletions(-)
diff --git a/drivers/net/ethernet/broadcom/bgmac.c b/drivers/net/ethernet/broadcom/bgmac.c
index 2cdacb8..cf7e1ff 100644
--- a/drivers/net/ethernet/broadcom/bgmac.c
+++ b/drivers/net/ethernet/broadcom/bgmac.c@@ -848,6 +848,9 @@ static void bgmac_mac_speed(struct bgmac *bgmac) case SPEED_1000: set |= BGMAC_CMDCFG_ES_1000; break; + case SPEED_2500: + set |= BGMAC_CMDCFG_ES_2500; + break; default: bgmac_err(bgmac, "Unsupported speed: %d\n", bgmac->mac_speed); }
@@ -860,12 +863,24 @@ static void bgmac_mac_speed(struct bgmac *bgmac) static void bgmac_miiconfig(struct bgmac *bgmac) { - u8 imode = (bgmac_read(bgmac, BGMAC_DEV_STATUS) & BGMAC_DS_MM_MASK) >> - BGMAC_DS_MM_SHIFT; - if (imode == 0 || imode == 1) { - bgmac->mac_speed = SPEED_100; - bgmac->mac_duplex = DUPLEX_FULL; - bgmac_mac_speed(bgmac); + struct bcma_device *core = bgmac->core; + struct bcma_chipinfo *ci = &core->bus->chipinfo; + + if (ci->id == BCMA_CHIP_ID_BCM4707 || + ci->id == BCMA_CHIP_ID_BCM53018) { + bcma_awrite32(core, BCMA_IOCTL, + bcma_aread32(core, BCMA_IOCTL) | 0x44); + bgmac->mac_speed = SPEED_2500; + bgmac->mac_duplex = DUPLEX_FULL; + bgmac_mac_speed(bgmac); + } else { + u8 imode = (bgmac_read(bgmac, BGMAC_DEV_STATUS) & + BGMAC_DS_MM_MASK) >> BGMAC_DS_MM_SHIFT; + if (imode == 0 || imode == 1) { + bgmac->mac_speed = SPEED_100; + bgmac->mac_duplex = DUPLEX_FULL; + bgmac_mac_speed(bgmac); + } } }
@@ -911,7 +926,8 @@ static void bgmac_chip_reset(struct bgmac *bgmac) bcma_core_enable(core, flags); - if (core->id.rev > 2) { + if (core->id.rev > 2 && ci->id != BCMA_CHIP_ID_BCM4707 && + ci->id != BCMA_CHIP_ID_BCM53018) { bgmac_set(bgmac, BCMA_CLKCTLST, BGMAC_BCMA_CLKCTLST_MISC_PLL_REQ); bgmac_wait_value(bgmac->core, BCMA_CLKCTLST,
@@ -1049,12 +1065,16 @@ static void bgmac_enable(struct bgmac *bgmac) break; } - 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); + 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); + } } /* http://bcm-v4.sipsolutions.net/mac-gbit/gmac/chipinit */
diff --git a/drivers/net/ethernet/broadcom/bgmac.h b/drivers/net/ethernet/broadcom/bgmac.h
index ceeaac6..8f71056 100644
--- a/drivers/net/ethernet/broadcom/bgmac.h
+++ b/drivers/net/ethernet/broadcom/bgmac.h@@ -189,6 +189,7 @@ #define BGMAC_CMDCFG_ES_10 0x00000000 #define BGMAC_CMDCFG_ES_100 0x00000004 #define BGMAC_CMDCFG_ES_1000 0x00000008 +#define BGMAC_CMDCFG_ES_2500 0x0000000C #define BGMAC_CMDCFG_PROM 0x00000010 /* Set to activate promiscuous mode */ #define BGMAC_CMDCFG_PAD_EN 0x00000020 #define BGMAC_CMDCFG_CF 0x00000040
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1.7.10.4