diff options
Diffstat (limited to 'target/linux/generic/patches-4.4/077-0001-net-bgmac-support-Ethernet-core-on-BCM53573-SoCs.patch')
| -rw-r--r-- | target/linux/generic/patches-4.4/077-0001-net-bgmac-support-Ethernet-core-on-BCM53573-SoCs.patch | 161 |
1 files changed, 161 insertions, 0 deletions
diff --git a/target/linux/generic/patches-4.4/077-0001-net-bgmac-support-Ethernet-core-on-BCM53573-SoCs.patch b/target/linux/generic/patches-4.4/077-0001-net-bgmac-support-Ethernet-core-on-BCM53573-SoCs.patch new file mode 100644 index 0000000000..c47aab7e06 --- /dev/null +++ b/target/linux/generic/patches-4.4/077-0001-net-bgmac-support-Ethernet-core-on-BCM53573-SoCs.patch @@ -0,0 +1,161 @@ +From 1cb94db3d1bfe0075bde78fb2989f17e0a8a3936 Mon Sep 17 00:00:00 2001 +From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl> +Date: Wed, 17 Aug 2016 23:00:30 +0200 +Subject: [PATCH] net: bgmac: support Ethernet core on BCM53573 SoCs +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +BCM53573 is a new series of Broadcom's SoCs. It's based on ARM and can +be found in two packages (versions): BCM53573 and BCM47189. It shares +some code with the Northstar family, but also requires some new quirks. + +First of all there can be up to 2 Ethernet cores on this SoC. If that is +the case, they are connected to two different switch ports allowing some +more complex/optimized setups. It seems the second unit doesn't come +fully configured and requires some IRQ quirk. + +Other than that only the first core is connected to the PHY. For the +second one we have to register fixed PHY (similarly to the Northstar), +otherwise generic PHY driver would get some invalid info. + +This has been successfully tested on Tenda AC9 (BCM47189B0). + +Signed-off-by: Rafał Miłecki <rafal@milecki.pl> +Signed-off-by: David S. Miller <davem@davemloft.net> +--- + drivers/net/ethernet/broadcom/bgmac-bcma.c | 19 ++++++++++++++++++- + drivers/net/ethernet/broadcom/bgmac.c | 25 +++++++++++++++++++++++++ + drivers/net/ethernet/broadcom/bgmac.h | 19 +++++++++++++++++++ + include/linux/bcma/bcma.h | 3 +++ + include/linux/bcma/bcma_regs.h | 1 + + 5 files changed, 66 insertions(+), 1 deletion(-) + +--- a/drivers/net/ethernet/broadcom/bgmac-bcma.c ++++ b/drivers/net/ethernet/broadcom/bgmac-bcma.c +@@ -92,6 +92,7 @@ MODULE_DEVICE_TABLE(bcma, bgmac_bcma_tbl + /* http://bcm-v4.sipsolutions.net/mac-gbit/gmac/chipattach */ + static int bgmac_probe(struct bcma_device *core) + { ++ struct bcma_chipinfo *ci = &core->bus->chipinfo; + struct ssb_sprom *sprom = &core->bus->sprom; + struct mii_bus *mii_bus; + struct bgmac *bgmac; +@@ -157,7 +158,8 @@ static int bgmac_probe(struct bcma_devic + dev_info(bgmac->dev, "Found PHY addr: %d%s\n", bgmac->phyaddr, + bgmac->phyaddr == BGMAC_PHY_NOREGS ? " (NOREGS)" : ""); + +- if (!bgmac_is_bcm4707_family(core)) { ++ if (!bgmac_is_bcm4707_family(core) && ++ !(ci->id == BCMA_CHIP_ID_BCM53573 && core->core_unit == 1)) { + mii_bus = bcma_mdio_mii_register(core, bgmac->phyaddr); + if (IS_ERR(mii_bus)) { + err = PTR_ERR(mii_bus); +@@ -230,6 +232,21 @@ static int bgmac_probe(struct bcma_devic + bgmac->feature_flags |= BGMAC_FEAT_NO_RESET; + bgmac->feature_flags |= BGMAC_FEAT_FORCE_SPEED_2500; + break; ++ case BCMA_CHIP_ID_BCM53573: ++ bgmac->feature_flags |= BGMAC_FEAT_CLKCTLST; ++ bgmac->feature_flags |= BGMAC_FEAT_SET_RXQ_CLK; ++ if (ci->pkg == BCMA_PKG_ID_BCM47189) ++ bgmac->feature_flags |= BGMAC_FEAT_IOST_ATTACHED; ++ if (core->core_unit == 0) { ++ bgmac->feature_flags |= BGMAC_FEAT_CC4_IF_SW_TYPE; ++ if (ci->pkg == BCMA_PKG_ID_BCM47189) ++ bgmac->feature_flags |= ++ BGMAC_FEAT_CC4_IF_SW_TYPE_RGMII; ++ } else if (core->core_unit == 1) { ++ bgmac->feature_flags |= BGMAC_FEAT_IRQ_ID_OOB_6; ++ bgmac->feature_flags |= BGMAC_FEAT_CC7_IF_TYPE_RGMII; ++ } ++ break; + default: + bgmac->feature_flags |= BGMAC_FEAT_CLKCTLST; + bgmac->feature_flags |= BGMAC_FEAT_SET_RXQ_CLK; +--- a/drivers/net/ethernet/broadcom/bgmac.c ++++ b/drivers/net/ethernet/broadcom/bgmac.c +@@ -940,6 +940,27 @@ static void bgmac_chip_reset(struct bgma + bgmac_cco_ctl_maskset(bgmac, 1, ~(BGMAC_CHIPCTL_1_IF_TYPE_MASK | + BGMAC_CHIPCTL_1_SW_TYPE_MASK), + sw_type); ++ } else if (bgmac->feature_flags & BGMAC_FEAT_CC4_IF_SW_TYPE) { ++ u32 sw_type = BGMAC_CHIPCTL_4_IF_TYPE_MII | ++ BGMAC_CHIPCTL_4_SW_TYPE_EPHY; ++ u8 et_swtype = 0; ++ char buf[4]; ++ ++ if (bcm47xx_nvram_getenv("et_swtype", buf, sizeof(buf)) > 0) { ++ if (kstrtou8(buf, 0, &et_swtype)) ++ dev_err(bgmac->dev, "Failed to parse et_swtype (%s)\n", ++ buf); ++ sw_type = (et_swtype & 0x0f) << 12; ++ } else if (bgmac->feature_flags & BGMAC_FEAT_CC4_IF_SW_TYPE_RGMII) { ++ sw_type = BGMAC_CHIPCTL_4_IF_TYPE_RGMII | ++ BGMAC_CHIPCTL_4_SW_TYPE_RGMII; ++ } ++ bgmac_cco_ctl_maskset(bgmac, 4, ~(BGMAC_CHIPCTL_4_IF_TYPE_MASK | ++ BGMAC_CHIPCTL_4_SW_TYPE_MASK), ++ sw_type); ++ } else if (bgmac->feature_flags & BGMAC_FEAT_CC7_IF_TYPE_RGMII) { ++ bgmac_cco_ctl_maskset(bgmac, 7, ~BGMAC_CHIPCTL_7_IF_TYPE_MASK, ++ BGMAC_CHIPCTL_7_IF_TYPE_RGMII); + } + + if (iost & BGMAC_BCMA_IOST_ATTACHED && !bgmac->has_robosw) +@@ -1483,6 +1504,10 @@ int bgmac_enet_probe(struct bgmac *info) + */ + bgmac_clk_enable(bgmac, 0); + ++ /* This seems to be fixing IRQ by assigning OOB #6 to the core */ ++ if (bgmac->feature_flags & BGMAC_FEAT_IRQ_ID_OOB_6) ++ bgmac_idm_write(bgmac, BCMA_OOB_SEL_OUT_A30, 0x86); ++ + bgmac_chip_reset(bgmac); + + err = bgmac_dma_alloc(bgmac); +--- a/drivers/net/ethernet/broadcom/bgmac.h ++++ b/drivers/net/ethernet/broadcom/bgmac.h +@@ -369,6 +369,21 @@ + #define BGMAC_CHIPCTL_1_SW_TYPE_RGMII 0x000000C0 + #define BGMAC_CHIPCTL_1_RXC_DLL_BYPASS 0x00010000 + ++#define BGMAC_CHIPCTL_4_IF_TYPE_MASK 0x00003000 ++#define BGMAC_CHIPCTL_4_IF_TYPE_RMII 0x00000000 ++#define BGMAC_CHIPCTL_4_IF_TYPE_MII 0x00001000 ++#define BGMAC_CHIPCTL_4_IF_TYPE_RGMII 0x00002000 ++#define BGMAC_CHIPCTL_4_SW_TYPE_MASK 0x0000C000 ++#define BGMAC_CHIPCTL_4_SW_TYPE_EPHY 0x00000000 ++#define BGMAC_CHIPCTL_4_SW_TYPE_EPHYMII 0x00004000 ++#define BGMAC_CHIPCTL_4_SW_TYPE_EPHYRMII 0x00008000 ++#define BGMAC_CHIPCTL_4_SW_TYPE_RGMII 0x0000C000 ++ ++#define BGMAC_CHIPCTL_7_IF_TYPE_MASK 0x000000C0 ++#define BGMAC_CHIPCTL_7_IF_TYPE_RMII 0x00000000 ++#define BGMAC_CHIPCTL_7_IF_TYPE_MII 0x00000040 ++#define BGMAC_CHIPCTL_7_IF_TYPE_RGMII 0x00000080 ++ + #define BGMAC_WEIGHT 64 + + #define ETHER_MAX_LEN 1518 +@@ -390,6 +405,10 @@ + #define BGMAC_FEAT_NO_CLR_MIB BIT(13) + #define BGMAC_FEAT_FORCE_SPEED_2500 BIT(14) + #define BGMAC_FEAT_CMDCFG_SR_REV4 BIT(15) ++#define BGMAC_FEAT_IRQ_ID_OOB_6 BIT(16) ++#define BGMAC_FEAT_CC4_IF_SW_TYPE BIT(17) ++#define BGMAC_FEAT_CC4_IF_SW_TYPE_RGMII BIT(18) ++#define BGMAC_FEAT_CC7_IF_TYPE_RGMII BIT(19) + + struct bgmac_slot_info { + union { +--- a/include/linux/bcma/bcma_regs.h ++++ b/include/linux/bcma/bcma_regs.h +@@ -23,6 +23,7 @@ + #define BCMA_CLKCTLST_4328A0_HAVEALP 0x00020000 /* 4328a0 has reversed bits */ + + /* Agent registers (common for every core) */ ++#define BCMA_OOB_SEL_OUT_A30 0x0100 + #define BCMA_IOCTL 0x0408 /* IO control */ + #define BCMA_IOCTL_CLK 0x0001 + #define BCMA_IOCTL_FGC 0x0002 |