diff options
Diffstat (limited to 'target/linux/brcm47xx/patches-3.2/0037-bcma-constants-for-PCI-and-use-them.patch')
| -rw-r--r-- | target/linux/brcm47xx/patches-3.2/0037-bcma-constants-for-PCI-and-use-them.patch | 334 |
1 files changed, 334 insertions, 0 deletions
diff --git a/target/linux/brcm47xx/patches-3.2/0037-bcma-constants-for-PCI-and-use-them.patch b/target/linux/brcm47xx/patches-3.2/0037-bcma-constants-for-PCI-and-use-them.patch new file mode 100644 index 0000000000..ab5f48198e --- /dev/null +++ b/target/linux/brcm47xx/patches-3.2/0037-bcma-constants-for-PCI-and-use-them.patch @@ -0,0 +1,334 @@ +From 300efafa8e1381a208c723bb9d03d46bf29f1ec0 Mon Sep 17 00:00:00 2001 +From: Hauke Mehrtens <hauke@hauke-m.de> +Date: Sat, 14 Jan 2012 20:02:15 +0100 +Subject: [PATCH 24/31] bcma: constants for PCI and use them + +There are loots of magic numbers used in the PCIe code. These constants +are from the Broadcom SDK and will also used in the host controller. + +Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de> +--- + drivers/bcma/driver_pci.c | 124 +++++++++++++++++++--------------- + include/linux/bcma/bcma_driver_pci.h | 85 +++++++++++++++++++++++ + 2 files changed, 155 insertions(+), 54 deletions(-) + +--- a/drivers/bcma/driver_pci.c ++++ b/drivers/bcma/driver_pci.c +@@ -4,6 +4,7 @@ + * + * Copyright 2005, Broadcom Corporation + * Copyright 2006, 2007, Michael Buesch <m@bues.ch> ++ * Copyright 2011, 2012, Hauke Mehrtens <hauke@hauke-m.de> + * + * Licensed under the GNU/GPL. See COPYING for details. + */ +@@ -18,38 +19,39 @@ + + static u32 bcma_pcie_read(struct bcma_drv_pci *pc, u32 address) + { +- pcicore_write32(pc, 0x130, address); +- pcicore_read32(pc, 0x130); +- return pcicore_read32(pc, 0x134); ++ pcicore_write32(pc, BCMA_CORE_PCI_PCIEIND_ADDR, address); ++ pcicore_read32(pc, BCMA_CORE_PCI_PCIEIND_ADDR); ++ return pcicore_read32(pc, BCMA_CORE_PCI_PCIEIND_DATA); + } + + #if 0 + static void bcma_pcie_write(struct bcma_drv_pci *pc, u32 address, u32 data) + { +- pcicore_write32(pc, 0x130, address); +- pcicore_read32(pc, 0x130); +- pcicore_write32(pc, 0x134, data); ++ pcicore_write32(pc, BCMA_CORE_PCI_PCIEIND_ADDR, address); ++ pcicore_read32(pc, BCMA_CORE_PCI_PCIEIND_ADDR); ++ pcicore_write32(pc, BCMA_CORE_PCI_PCIEIND_DATA, data); + } + #endif + + static void bcma_pcie_mdio_set_phy(struct bcma_drv_pci *pc, u8 phy) + { +- const u16 mdio_control = 0x128; +- const u16 mdio_data = 0x12C; + u32 v; + int i; + +- v = (1 << 30); /* Start of Transaction */ +- v |= (1 << 28); /* Write Transaction */ +- v |= (1 << 17); /* Turnaround */ +- v |= (0x1F << 18); ++ v = BCMA_CORE_PCI_MDIODATA_START; ++ v |= BCMA_CORE_PCI_MDIODATA_WRITE; ++ v |= (BCMA_CORE_PCI_MDIODATA_DEV_ADDR << ++ BCMA_CORE_PCI_MDIODATA_DEVADDR_SHF); ++ v |= (BCMA_CORE_PCI_MDIODATA_BLK_ADDR << ++ BCMA_CORE_PCI_MDIODATA_REGADDR_SHF); ++ v |= BCMA_CORE_PCI_MDIODATA_TA; + v |= (phy << 4); +- pcicore_write32(pc, mdio_data, v); ++ pcicore_write32(pc, BCMA_CORE_PCI_MDIO_DATA, v); + + udelay(10); + for (i = 0; i < 200; i++) { +- v = pcicore_read32(pc, mdio_control); +- if (v & 0x100 /* Trans complete */) ++ v = pcicore_read32(pc, BCMA_CORE_PCI_MDIO_CONTROL); ++ if (v & BCMA_CORE_PCI_MDIOCTL_ACCESS_DONE) + break; + msleep(1); + } +@@ -57,79 +59,84 @@ static void bcma_pcie_mdio_set_phy(struc + + static u16 bcma_pcie_mdio_read(struct bcma_drv_pci *pc, u8 device, u8 address) + { +- const u16 mdio_control = 0x128; +- const u16 mdio_data = 0x12C; + int max_retries = 10; + u16 ret = 0; + u32 v; + int i; + +- v = 0x80; /* Enable Preamble Sequence */ +- v |= 0x2; /* MDIO Clock Divisor */ +- pcicore_write32(pc, mdio_control, v); ++ /* enable mdio access to SERDES */ ++ v = BCMA_CORE_PCI_MDIOCTL_PREAM_EN; ++ v |= BCMA_CORE_PCI_MDIOCTL_DIVISOR_VAL; ++ pcicore_write32(pc, BCMA_CORE_PCI_MDIO_CONTROL, v); + + if (pc->core->id.rev >= 10) { + max_retries = 200; + bcma_pcie_mdio_set_phy(pc, device); ++ v = (BCMA_CORE_PCI_MDIODATA_DEV_ADDR << ++ BCMA_CORE_PCI_MDIODATA_DEVADDR_SHF); ++ v |= (address << BCMA_CORE_PCI_MDIODATA_REGADDR_SHF); ++ } else { ++ v = (device << BCMA_CORE_PCI_MDIODATA_DEVADDR_SHF_OLD); ++ v |= (address << BCMA_CORE_PCI_MDIODATA_REGADDR_SHF_OLD); + } + +- v = (1 << 30); /* Start of Transaction */ +- v |= (1 << 29); /* Read Transaction */ +- v |= (1 << 17); /* Turnaround */ +- if (pc->core->id.rev < 10) +- v |= (u32)device << 22; +- v |= (u32)address << 18; +- pcicore_write32(pc, mdio_data, v); ++ v = BCMA_CORE_PCI_MDIODATA_START; ++ v |= BCMA_CORE_PCI_MDIODATA_READ; ++ v |= BCMA_CORE_PCI_MDIODATA_TA; ++ ++ pcicore_write32(pc, BCMA_CORE_PCI_MDIO_DATA, v); + /* Wait for the device to complete the transaction */ + udelay(10); + for (i = 0; i < max_retries; i++) { +- v = pcicore_read32(pc, mdio_control); +- if (v & 0x100 /* Trans complete */) { ++ v = pcicore_read32(pc, BCMA_CORE_PCI_MDIO_CONTROL); ++ if (v & BCMA_CORE_PCI_MDIOCTL_ACCESS_DONE) { + udelay(10); +- ret = pcicore_read32(pc, mdio_data); ++ ret = pcicore_read32(pc, BCMA_CORE_PCI_MDIO_DATA); + break; + } + msleep(1); + } +- pcicore_write32(pc, mdio_control, 0); ++ pcicore_write32(pc, BCMA_CORE_PCI_MDIO_CONTROL, 0); + return ret; + } + + static void bcma_pcie_mdio_write(struct bcma_drv_pci *pc, u8 device, + u8 address, u16 data) + { +- const u16 mdio_control = 0x128; +- const u16 mdio_data = 0x12C; + int max_retries = 10; + u32 v; + int i; + +- v = 0x80; /* Enable Preamble Sequence */ +- v |= 0x2; /* MDIO Clock Divisor */ +- pcicore_write32(pc, mdio_control, v); ++ /* enable mdio access to SERDES */ ++ v = BCMA_CORE_PCI_MDIOCTL_PREAM_EN; ++ v |= BCMA_CORE_PCI_MDIOCTL_DIVISOR_VAL; ++ pcicore_write32(pc, BCMA_CORE_PCI_MDIO_CONTROL, v); + + if (pc->core->id.rev >= 10) { + max_retries = 200; + bcma_pcie_mdio_set_phy(pc, device); ++ v = (BCMA_CORE_PCI_MDIODATA_DEV_ADDR << ++ BCMA_CORE_PCI_MDIODATA_DEVADDR_SHF); ++ v |= (address << BCMA_CORE_PCI_MDIODATA_REGADDR_SHF); ++ } else { ++ v = (device << BCMA_CORE_PCI_MDIODATA_DEVADDR_SHF_OLD); ++ v |= (address << BCMA_CORE_PCI_MDIODATA_REGADDR_SHF_OLD); + } + +- v = (1 << 30); /* Start of Transaction */ +- v |= (1 << 28); /* Write Transaction */ +- v |= (1 << 17); /* Turnaround */ +- if (pc->core->id.rev < 10) +- v |= (u32)device << 22; +- v |= (u32)address << 18; ++ v = BCMA_CORE_PCI_MDIODATA_START; ++ v |= BCMA_CORE_PCI_MDIODATA_WRITE; ++ v |= BCMA_CORE_PCI_MDIODATA_TA; + v |= data; +- pcicore_write32(pc, mdio_data, v); ++ pcicore_write32(pc, BCMA_CORE_PCI_MDIO_DATA, v); + /* Wait for the device to complete the transaction */ + udelay(10); + for (i = 0; i < max_retries; i++) { +- v = pcicore_read32(pc, mdio_control); +- if (v & 0x100 /* Trans complete */) ++ v = pcicore_read32(pc, BCMA_CORE_PCI_MDIO_CONTROL); ++ if (v & BCMA_CORE_PCI_MDIOCTL_ACCESS_DONE) + break; + msleep(1); + } +- pcicore_write32(pc, mdio_control, 0); ++ pcicore_write32(pc, BCMA_CORE_PCI_MDIO_CONTROL, 0); + } + + /************************************************** +@@ -138,20 +145,29 @@ static void bcma_pcie_mdio_write(struct + + static u8 bcma_pcicore_polarity_workaround(struct bcma_drv_pci *pc) + { +- return (bcma_pcie_read(pc, 0x204) & 0x10) ? 0xC0 : 0x80; ++ u32 tmp; ++ ++ tmp = bcma_pcie_read(pc, BCMA_CORE_PCI_PLP_STATUSREG); ++ if (tmp & BCMA_CORE_PCI_PLP_POLARITYINV_STAT) ++ return BCMA_CORE_PCI_SERDES_RX_CTRL_FORCE | ++ BCMA_CORE_PCI_SERDES_RX_CTRL_POLARITY; ++ else ++ return BCMA_CORE_PCI_SERDES_RX_CTRL_FORCE; + } + + static void bcma_pcicore_serdes_workaround(struct bcma_drv_pci *pc) + { +- const u8 serdes_pll_device = 0x1D; +- const u8 serdes_rx_device = 0x1F; + u16 tmp; + +- bcma_pcie_mdio_write(pc, serdes_rx_device, 1 /* Control */, +- bcma_pcicore_polarity_workaround(pc)); +- tmp = bcma_pcie_mdio_read(pc, serdes_pll_device, 1 /* Control */); +- if (tmp & 0x4000) +- bcma_pcie_mdio_write(pc, serdes_pll_device, 1, tmp & ~0x4000); ++ bcma_pcie_mdio_write(pc, BCMA_CORE_PCI_MDIODATA_DEV_RX, ++ BCMA_CORE_PCI_SERDES_RX_CTRL, ++ bcma_pcicore_polarity_workaround(pc)); ++ tmp = bcma_pcie_mdio_read(pc, BCMA_CORE_PCI_MDIODATA_DEV_PLL, ++ BCMA_CORE_PCI_SERDES_PLL_CTRL); ++ if (tmp & BCMA_CORE_PCI_PLL_CTRL_FREQDET_EN) ++ bcma_pcie_mdio_write(pc, BCMA_CORE_PCI_MDIODATA_DEV_PLL, ++ BCMA_CORE_PCI_SERDES_PLL_CTRL, ++ tmp & ~BCMA_CORE_PCI_PLL_CTRL_FREQDET_EN); + } + + /************************************************** +--- a/include/linux/bcma/bcma_driver_pci.h ++++ b/include/linux/bcma/bcma_driver_pci.h +@@ -53,6 +53,35 @@ struct pci_dev; + #define BCMA_CORE_PCI_SBTOPCI1_MASK 0xFC000000 + #define BCMA_CORE_PCI_SBTOPCI2 0x0108 /* Backplane to PCI translation 2 (sbtopci2) */ + #define BCMA_CORE_PCI_SBTOPCI2_MASK 0xC0000000 ++#define BCMA_CORE_PCI_CONFIG_ADDR 0x0120 /* pcie config space access */ ++#define BCMA_CORE_PCI_CONFIG_DATA 0x0124 /* pcie config space access */ ++#define BCMA_CORE_PCI_MDIO_CONTROL 0x0128 /* controls the mdio access */ ++#define BCMA_CORE_PCI_MDIOCTL_DIVISOR_MASK 0x7f /* clock to be used on MDIO */ ++#define BCMA_CORE_PCI_MDIOCTL_DIVISOR_VAL 0x2 ++#define BCMA_CORE_PCI_MDIOCTL_PREAM_EN 0x80 /* Enable preamble sequnce */ ++#define BCMA_CORE_PCI_MDIOCTL_ACCESS_DONE 0x100 /* Tranaction complete */ ++#define BCMA_CORE_PCI_MDIO_DATA 0x012c /* Data to the mdio access */ ++#define BCMA_CORE_PCI_MDIODATA_MASK 0x0000ffff /* data 2 bytes */ ++#define BCMA_CORE_PCI_MDIODATA_TA 0x00020000 /* Turnaround */ ++#define BCMA_CORE_PCI_MDIODATA_REGADDR_SHF_OLD 18 /* Regaddr shift (rev < 10) */ ++#define BCMA_CORE_PCI_MDIODATA_REGADDR_MASK_OLD 0x003c0000 /* Regaddr Mask (rev < 10) */ ++#define BCMA_CORE_PCI_MDIODATA_DEVADDR_SHF_OLD 22 /* Physmedia devaddr shift (rev < 10) */ ++#define BCMA_CORE_PCI_MDIODATA_DEVADDR_MASK_OLD 0x0fc00000 /* Physmedia devaddr Mask (rev < 10) */ ++#define BCMA_CORE_PCI_MDIODATA_REGADDR_SHF 18 /* Regaddr shift */ ++#define BCMA_CORE_PCI_MDIODATA_REGADDR_MASK 0x007c0000 /* Regaddr Mask */ ++#define BCMA_CORE_PCI_MDIODATA_DEVADDR_SHF 23 /* Physmedia devaddr shift */ ++#define BCMA_CORE_PCI_MDIODATA_DEVADDR_MASK 0x0f800000 /* Physmedia devaddr Mask */ ++#define BCMA_CORE_PCI_MDIODATA_WRITE 0x10000000 /* write Transaction */ ++#define BCMA_CORE_PCI_MDIODATA_READ 0x20000000 /* Read Transaction */ ++#define BCMA_CORE_PCI_MDIODATA_START 0x40000000 /* start of Transaction */ ++#define BCMA_CORE_PCI_MDIODATA_DEV_ADDR 0x0 /* dev address for serdes */ ++#define BCMA_CORE_PCI_MDIODATA_BLK_ADDR 0x1F /* blk address for serdes */ ++#define BCMA_CORE_PCI_MDIODATA_DEV_PLL 0x1d /* SERDES PLL Dev */ ++#define BCMA_CORE_PCI_MDIODATA_DEV_TX 0x1e /* SERDES TX Dev */ ++#define BCMA_CORE_PCI_MDIODATA_DEV_RX 0x1f /* SERDES RX Dev */ ++#define BCMA_CORE_PCI_PCIEIND_ADDR 0x0130 /* indirect access to the internal register */ ++#define BCMA_CORE_PCI_PCIEIND_DATA 0x0134 /* Data to/from the internal regsiter */ ++#define BCMA_CORE_PCI_CLKREQENCTRL 0x0138 /* >= rev 6, Clkreq rdma control */ + #define BCMA_CORE_PCI_PCICFG0 0x0400 /* PCI config space 0 (rev >= 8) */ + #define BCMA_CORE_PCI_PCICFG1 0x0500 /* PCI config space 1 (rev >= 8) */ + #define BCMA_CORE_PCI_PCICFG2 0x0600 /* PCI config space 2 (rev >= 8) */ +@@ -72,6 +101,62 @@ struct pci_dev; + #define BCMA_CORE_PCI_SBTOPCI_RC_READL 0x00000010 /* Memory read line */ + #define BCMA_CORE_PCI_SBTOPCI_RC_READM 0x00000020 /* Memory read multiple */ + ++/* PCIE protocol PHY diagnostic registers */ ++#define BCMA_CORE_PCI_PLP_MODEREG 0x200 /* Mode */ ++#define BCMA_CORE_PCI_PLP_STATUSREG 0x204 /* Status */ ++#define BCMA_CORE_PCI_PLP_POLARITYINV_STAT 0x10 /* Status reg PCIE_PLP_STATUSREG */ ++#define BCMA_CORE_PCI_PLP_LTSSMCTRLREG 0x208 /* LTSSM control */ ++#define BCMA_CORE_PCI_PLP_LTLINKNUMREG 0x20c /* Link Training Link number */ ++#define BCMA_CORE_PCI_PLP_LTLANENUMREG 0x210 /* Link Training Lane number */ ++#define BCMA_CORE_PCI_PLP_LTNFTSREG 0x214 /* Link Training N_FTS */ ++#define BCMA_CORE_PCI_PLP_ATTNREG 0x218 /* Attention */ ++#define BCMA_CORE_PCI_PLP_ATTNMASKREG 0x21C /* Attention Mask */ ++#define BCMA_CORE_PCI_PLP_RXERRCTR 0x220 /* Rx Error */ ++#define BCMA_CORE_PCI_PLP_RXFRMERRCTR 0x224 /* Rx Framing Error */ ++#define BCMA_CORE_PCI_PLP_RXERRTHRESHREG 0x228 /* Rx Error threshold */ ++#define BCMA_CORE_PCI_PLP_TESTCTRLREG 0x22C /* Test Control reg */ ++#define BCMA_CORE_PCI_PLP_SERDESCTRLOVRDREG 0x230 /* SERDES Control Override */ ++#define BCMA_CORE_PCI_PLP_TIMINGOVRDREG 0x234 /* Timing param override */ ++#define BCMA_CORE_PCI_PLP_RXTXSMDIAGREG 0x238 /* RXTX State Machine Diag */ ++#define BCMA_CORE_PCI_PLP_LTSSMDIAGREG 0x23C /* LTSSM State Machine Diag */ ++ ++/* PCIE protocol DLLP diagnostic registers */ ++#define BCMA_CORE_PCI_DLLP_LCREG 0x100 /* Link Control */ ++#define BCMA_CORE_PCI_DLLP_LSREG 0x104 /* Link Status */ ++#define BCMA_CORE_PCI_DLLP_LAREG 0x108 /* Link Attention */ ++#define BCMA_CORE_PCI_DLLP_LSREG_LINKUP (1 << 16) ++#define BCMA_CORE_PCI_DLLP_LAMASKREG 0x10C /* Link Attention Mask */ ++#define BCMA_CORE_PCI_DLLP_NEXTTXSEQNUMREG 0x110 /* Next Tx Seq Num */ ++#define BCMA_CORE_PCI_DLLP_ACKEDTXSEQNUMREG 0x114 /* Acked Tx Seq Num */ ++#define BCMA_CORE_PCI_DLLP_PURGEDTXSEQNUMREG 0x118 /* Purged Tx Seq Num */ ++#define BCMA_CORE_PCI_DLLP_RXSEQNUMREG 0x11C /* Rx Sequence Number */ ++#define BCMA_CORE_PCI_DLLP_LRREG 0x120 /* Link Replay */ ++#define BCMA_CORE_PCI_DLLP_LACKTOREG 0x124 /* Link Ack Timeout */ ++#define BCMA_CORE_PCI_DLLP_PMTHRESHREG 0x128 /* Power Management Threshold */ ++#define BCMA_CORE_PCI_DLLP_RTRYWPREG 0x12C /* Retry buffer write ptr */ ++#define BCMA_CORE_PCI_DLLP_RTRYRPREG 0x130 /* Retry buffer Read ptr */ ++#define BCMA_CORE_PCI_DLLP_RTRYPPREG 0x134 /* Retry buffer Purged ptr */ ++#define BCMA_CORE_PCI_DLLP_RTRRWREG 0x138 /* Retry buffer Read/Write */ ++#define BCMA_CORE_PCI_DLLP_ECTHRESHREG 0x13C /* Error Count Threshold */ ++#define BCMA_CORE_PCI_DLLP_TLPERRCTRREG 0x140 /* TLP Error Counter */ ++#define BCMA_CORE_PCI_DLLP_ERRCTRREG 0x144 /* Error Counter */ ++#define BCMA_CORE_PCI_DLLP_NAKRXCTRREG 0x148 /* NAK Received Counter */ ++#define BCMA_CORE_PCI_DLLP_TESTREG 0x14C /* Test */ ++#define BCMA_CORE_PCI_DLLP_PKTBIST 0x150 /* Packet BIST */ ++#define BCMA_CORE_PCI_DLLP_PCIE11 0x154 /* DLLP PCIE 1.1 reg */ ++ ++/* SERDES RX registers */ ++#define BCMA_CORE_PCI_SERDES_RX_CTRL 1 /* Rx cntrl */ ++#define BCMA_CORE_PCI_SERDES_RX_CTRL_FORCE 0x80 /* rxpolarity_force */ ++#define BCMA_CORE_PCI_SERDES_RX_CTRL_POLARITY 0x40 /* rxpolarity_value */ ++#define BCMA_CORE_PCI_SERDES_RX_TIMER1 2 /* Rx Timer1 */ ++#define BCMA_CORE_PCI_SERDES_RX_CDR 6 /* CDR */ ++#define BCMA_CORE_PCI_SERDES_RX_CDRBW 7 /* CDR BW */ ++ ++/* SERDES PLL registers */ ++#define BCMA_CORE_PCI_SERDES_PLL_CTRL 1 /* PLL control reg */ ++#define BCMA_CORE_PCI_PLL_CTRL_FREQDET_EN 0x4000 /* bit 14 is FREQDET on */ ++ + /* PCIcore specific boardflags */ + #define BCMA_CORE_PCI_BFL_NOPCI 0x00000400 /* Board leaves PCI floating */ + |