From fc27e5df637dd4c954b67dd1415b9af144718a9e Mon Sep 17 00:00:00 2001 From: =?utf8?q?Pali=20Roh=C3=A1r?= Date: Fri, 18 Feb 2022 12:25:23 +0100 Subject: [PATCH] pci: pci_mvebu: Cleanup macro names MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit Use "MVPCIE_" prefix instead of generic "PCIE_" prefix for pci_mvebu.c specific macros. Define offset macros for Root Port registers and use standard register macros from pci.h when accessing Root Port registers. Signed-off-by: Pali Rohár Reviewed-by: Marek Behún Reviewed-by: Stefan Roese --- drivers/pci/pci_mvebu.c | 130 +++++++++++++++++++--------------------- 1 file changed, 60 insertions(+), 70 deletions(-) diff --git a/drivers/pci/pci_mvebu.c b/drivers/pci/pci_mvebu.c index 16fe54fd36..f07669374d 100644 --- a/drivers/pci/pci_mvebu.c +++ b/drivers/pci/pci_mvebu.c @@ -30,35 +30,25 @@ #include /* PCIe unit register offsets */ -#define PCIE_DEV_ID_OFF 0x0000 -#define PCIE_CMD_OFF 0x0004 -#define PCIE_DEV_REV_OFF 0x0008 -#define PCIE_BAR_LO_OFF(n) (0x0010 + ((n) << 3)) -#define PCIE_BAR_HI_OFF(n) (0x0014 + ((n) << 3)) -#define PCIE_EXP_ROM_BAR_OFF 0x0030 -#define PCIE_CAPAB_OFF 0x0060 -#define PCIE_CTRL_STAT_OFF 0x0068 -#define PCIE_HEADER_LOG_4_OFF 0x0128 -#define PCIE_BAR_CTRL_OFF(n) (0x1804 + (((n) - 1) * 4)) -#define PCIE_WIN04_CTRL_OFF(n) (0x1820 + ((n) << 4)) -#define PCIE_WIN04_BASE_OFF(n) (0x1824 + ((n) << 4)) -#define PCIE_WIN04_REMAP_OFF(n) (0x182c + ((n) << 4)) -#define PCIE_WIN5_CTRL_OFF 0x1880 -#define PCIE_WIN5_BASE_OFF 0x1884 -#define PCIE_WIN5_REMAP_OFF 0x188c -#define PCIE_CONF_ADDR_OFF 0x18f8 -#define PCIE_CONF_DATA_OFF 0x18fc -#define PCIE_MASK_OFF 0x1910 -#define PCIE_MASK_ENABLE_INTS (0xf << 24) -#define PCIE_CTRL_OFF 0x1a00 -#define PCIE_CTRL_X1_MODE BIT(0) -#define PCIE_CTRL_RC_MODE BIT(1) -#define PCIE_STAT_OFF 0x1a04 -#define PCIE_STAT_BUS (0xff << 8) -#define PCIE_STAT_DEV (0x1f << 16) -#define PCIE_STAT_LINK_DOWN BIT(0) -#define PCIE_DEBUG_CTRL 0x1a60 -#define PCIE_DEBUG_SOFT_RESET BIT(20) +#define MVPCIE_ROOT_PORT_PCI_CFG_OFF 0x0000 +#define MVPCIE_ROOT_PORT_PCI_EXP_OFF 0x0060 +#define MVPCIE_BAR_LO_OFF(n) (0x0010 + ((n) << 3)) +#define MVPCIE_BAR_HI_OFF(n) (0x0014 + ((n) << 3)) +#define MVPCIE_BAR_CTRL_OFF(n) (0x1804 + (((n) - 1) * 4)) +#define MVPCIE_WIN04_CTRL_OFF(n) (0x1820 + ((n) << 4)) +#define MVPCIE_WIN04_BASE_OFF(n) (0x1824 + ((n) << 4)) +#define MVPCIE_WIN04_REMAP_OFF(n) (0x182c + ((n) << 4)) +#define MVPCIE_WIN5_CTRL_OFF 0x1880 +#define MVPCIE_WIN5_BASE_OFF 0x1884 +#define MVPCIE_WIN5_REMAP_OFF 0x188c +#define MVPCIE_CONF_ADDR_OFF 0x18f8 +#define MVPCIE_CONF_DATA_OFF 0x18fc +#define MVPCIE_CTRL_OFF 0x1a00 +#define MVPCIE_CTRL_RC_MODE BIT(1) +#define MVPCIE_STAT_OFF 0x1a04 +#define MVPCIE_STAT_BUS (0xff << 8) +#define MVPCIE_STAT_DEV (0x1f << 16) +#define MVPCIE_STAT_LINK_DOWN BIT(0) #define LINK_WAIT_RETRIES 100 #define LINK_WAIT_TIMEOUT 1000 @@ -87,8 +77,8 @@ struct mvebu_pcie { static inline bool mvebu_pcie_link_up(struct mvebu_pcie *pcie) { u32 val; - val = readl(pcie->base + PCIE_STAT_OFF); - return !(val & PCIE_STAT_LINK_DOWN); + val = readl(pcie->base + MVPCIE_STAT_OFF); + return !(val & MVPCIE_STAT_LINK_DOWN); } static void mvebu_pcie_wait_for_link(struct mvebu_pcie *pcie) @@ -112,20 +102,20 @@ static void mvebu_pcie_set_local_bus_nr(struct mvebu_pcie *pcie, int busno) { u32 stat; - stat = readl(pcie->base + PCIE_STAT_OFF); - stat &= ~PCIE_STAT_BUS; + stat = readl(pcie->base + MVPCIE_STAT_OFF); + stat &= ~MVPCIE_STAT_BUS; stat |= busno << 8; - writel(stat, pcie->base + PCIE_STAT_OFF); + writel(stat, pcie->base + MVPCIE_STAT_OFF); } static void mvebu_pcie_set_local_dev_nr(struct mvebu_pcie *pcie, int devno) { u32 stat; - stat = readl(pcie->base + PCIE_STAT_OFF); - stat &= ~PCIE_STAT_DEV; + stat = readl(pcie->base + MVPCIE_STAT_OFF); + stat &= ~MVPCIE_STAT_DEV; stat |= devno << 16; - writel(stat, pcie->base + PCIE_STAT_OFF); + writel(stat, pcie->base + MVPCIE_STAT_OFF); } static inline struct mvebu_pcie *hose_to_pcie(struct pci_controller *hose) @@ -195,18 +185,18 @@ static int mvebu_pcie_read_config(const struct udevice *bus, pci_dev_t bdf, addr = PCI_CONF1_EXT_ADDRESS(busno, PCI_DEV(bdf), PCI_FUNC(bdf), offset); /* write address */ - writel(addr, pcie->base + PCIE_CONF_ADDR_OFF); + writel(addr, pcie->base + MVPCIE_CONF_ADDR_OFF); /* read data */ switch (size) { case PCI_SIZE_8: - data = readb(pcie->base + PCIE_CONF_DATA_OFF + (offset & 3)); + data = readb(pcie->base + MVPCIE_CONF_DATA_OFF + (offset & 3)); break; case PCI_SIZE_16: - data = readw(pcie->base + PCIE_CONF_DATA_OFF + (offset & 2)); + data = readw(pcie->base + MVPCIE_CONF_DATA_OFF + (offset & 2)); break; case PCI_SIZE_32: - data = readl(pcie->base + PCIE_CONF_DATA_OFF); + data = readl(pcie->base + MVPCIE_CONF_DATA_OFF); break; default: return -EINVAL; @@ -286,18 +276,18 @@ static int mvebu_pcie_write_config(struct udevice *bus, pci_dev_t bdf, addr = PCI_CONF1_EXT_ADDRESS(busno, PCI_DEV(bdf), PCI_FUNC(bdf), offset); /* write address */ - writel(addr, pcie->base + PCIE_CONF_ADDR_OFF); + writel(addr, pcie->base + MVPCIE_CONF_ADDR_OFF); /* write data */ switch (size) { case PCI_SIZE_8: - writeb(value, pcie->base + PCIE_CONF_DATA_OFF + (offset & 3)); + writeb(value, pcie->base + MVPCIE_CONF_DATA_OFF + (offset & 3)); break; case PCI_SIZE_16: - writew(value, pcie->base + PCIE_CONF_DATA_OFF + (offset & 2)); + writew(value, pcie->base + MVPCIE_CONF_DATA_OFF + (offset & 2)); break; case PCI_SIZE_32: - writel(value, pcie->base + PCIE_CONF_DATA_OFF); + writel(value, pcie->base + MVPCIE_CONF_DATA_OFF); break; default: return -EINVAL; @@ -321,20 +311,20 @@ static void mvebu_pcie_setup_wins(struct mvebu_pcie *pcie) /* First, disable and clear BARs and windows. */ for (i = 1; i < 3; i++) { - writel(0, pcie->base + PCIE_BAR_CTRL_OFF(i)); - writel(0, pcie->base + PCIE_BAR_LO_OFF(i)); - writel(0, pcie->base + PCIE_BAR_HI_OFF(i)); + writel(0, pcie->base + MVPCIE_BAR_CTRL_OFF(i)); + writel(0, pcie->base + MVPCIE_BAR_LO_OFF(i)); + writel(0, pcie->base + MVPCIE_BAR_HI_OFF(i)); } for (i = 0; i < 5; i++) { - writel(0, pcie->base + PCIE_WIN04_CTRL_OFF(i)); - writel(0, pcie->base + PCIE_WIN04_BASE_OFF(i)); - writel(0, pcie->base + PCIE_WIN04_REMAP_OFF(i)); + writel(0, pcie->base + MVPCIE_WIN04_CTRL_OFF(i)); + writel(0, pcie->base + MVPCIE_WIN04_BASE_OFF(i)); + writel(0, pcie->base + MVPCIE_WIN04_REMAP_OFF(i)); } - writel(0, pcie->base + PCIE_WIN5_CTRL_OFF); - writel(0, pcie->base + PCIE_WIN5_BASE_OFF); - writel(0, pcie->base + PCIE_WIN5_REMAP_OFF); + writel(0, pcie->base + MVPCIE_WIN5_CTRL_OFF); + writel(0, pcie->base + MVPCIE_WIN5_BASE_OFF); + writel(0, pcie->base + MVPCIE_WIN5_REMAP_OFF); /* Setup windows for DDR banks. Count total DDR size on the fly. */ size = 0; @@ -342,12 +332,12 @@ static void mvebu_pcie_setup_wins(struct mvebu_pcie *pcie) const struct mbus_dram_window *cs = dram->cs + i; writel(cs->base & 0xffff0000, - pcie->base + PCIE_WIN04_BASE_OFF(i)); - writel(0, pcie->base + PCIE_WIN04_REMAP_OFF(i)); + pcie->base + MVPCIE_WIN04_BASE_OFF(i)); + writel(0, pcie->base + MVPCIE_WIN04_REMAP_OFF(i)); writel(((cs->size - 1) & 0xffff0000) | (cs->mbus_attr << 8) | (dram->mbus_dram_target_id << 4) | 1, - pcie->base + PCIE_WIN04_CTRL_OFF(i)); + pcie->base + MVPCIE_WIN04_CTRL_OFF(i)); size += cs->size; } @@ -357,14 +347,14 @@ static void mvebu_pcie_setup_wins(struct mvebu_pcie *pcie) size = 1 << fls(size); /* Setup BAR[1] to all DRAM banks. */ - writel(dram->cs[0].base | 0xc, pcie->base + PCIE_BAR_LO_OFF(1)); - writel(0, pcie->base + PCIE_BAR_HI_OFF(1)); + writel(dram->cs[0].base | 0xc, pcie->base + MVPCIE_BAR_LO_OFF(1)); + writel(0, pcie->base + MVPCIE_BAR_HI_OFF(1)); writel(((size - 1) & 0xffff0000) | 0x1, - pcie->base + PCIE_BAR_CTRL_OFF(1)); + pcie->base + MVPCIE_BAR_CTRL_OFF(1)); /* Setup BAR[0] to internal registers. */ - writel(pcie->intregs, pcie->base + PCIE_BAR_LO_OFF(0)); - writel(0, pcie->base + PCIE_BAR_HI_OFF(0)); + writel(pcie->intregs, pcie->base + MVPCIE_BAR_LO_OFF(0)); + writel(0, pcie->base + MVPCIE_BAR_HI_OFF(0)); } /* Only enable PCIe link, do not setup it */ @@ -403,9 +393,9 @@ static void mvebu_pcie_setup_link(struct mvebu_pcie *pcie) u32 reg; /* Setup PCIe controller to Root Complex mode */ - reg = readl(pcie->base + PCIE_CTRL_OFF); - reg |= PCIE_CTRL_RC_MODE; - writel(reg, pcie->base + PCIE_CTRL_OFF); + reg = readl(pcie->base + MVPCIE_CTRL_OFF); + reg |= MVPCIE_CTRL_RC_MODE; + writel(reg, pcie->base + MVPCIE_CTRL_OFF); /* * Set Maximum Link Width to X1 or X4 in Root Port's PCIe Link @@ -414,10 +404,10 @@ static void mvebu_pcie_setup_link(struct mvebu_pcie *pcie) * be set to number of SerDes PCIe lanes (1 or 4). If this register is * not set correctly then link with endpoint card is not established. */ - reg = readl(pcie->base + PCIE_CAPAB_OFF + PCI_EXP_LNKCAP); + reg = readl(pcie->base + MVPCIE_ROOT_PORT_PCI_EXP_OFF + PCI_EXP_LNKCAP); reg &= ~PCI_EXP_LNKCAP_MLW; reg |= (pcie->is_x4 ? 4 : 1) << 4; - writel(reg, pcie->base + PCIE_CAPAB_OFF + PCI_EXP_LNKCAP); + writel(reg, pcie->base + MVPCIE_ROOT_PORT_PCI_EXP_OFF + PCI_EXP_LNKCAP); } static int mvebu_pcie_probe(struct udevice *dev) @@ -440,7 +430,7 @@ static int mvebu_pcie_probe(struct udevice *dev) * have the same format in Marvell's specification as in PCIe * specification, but their meaning is totally different and they do * different things: they are aliased into internal mvebu registers - * (e.g. PCIE_BAR_LO_OFF) and these should not be changed or + * (e.g. MVPCIE_BAR_LO_OFF) and these should not be changed or * reconfigured by pci device drivers. * * So our driver converts Type 0 config space to Type 1 and reports @@ -448,10 +438,10 @@ static int mvebu_pcie_probe(struct udevice *dev) * Type 1 registers is redirected to the virtual cfgcache[] buffer, * which avoids changing unrelated registers. */ - reg = readl(pcie->base + PCIE_DEV_REV_OFF); + reg = readl(pcie->base + MVPCIE_ROOT_PORT_PCI_CFG_OFF + PCI_CLASS_REVISION); reg &= ~0xffffff00; reg |= (PCI_CLASS_BRIDGE_PCI << 8) << 8; - writel(reg, pcie->base + PCIE_DEV_REV_OFF); + writel(reg, pcie->base + MVPCIE_ROOT_PORT_PCI_CFG_OFF + PCI_CLASS_REVISION); /* * mvebu uses local bus number and local device number to determinate -- 2.39.5