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https://github.com/AsahiLinux/u-boot
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pci: layerscape: Split the EP and RC driver
Split the RC and EP driver, and reimplement the EP driver base on the EP framework. Signed-off-by: Xiaowei Bao <xiaowei.bao@nxp.com> Signed-off-by: Hou Zhiqiang <Zhiqiang.Hou@nxp.com> [Rebased] Signed-off-by: Priyanka Jain <priyanka.jain@nxp.com>
This commit is contained in:
parent
be2c7d764a
commit
118e58e26e
6 changed files with 735 additions and 497 deletions
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@ -33,7 +33,7 @@ obj-$(CONFIG_PCI_TEGRA) += pci_tegra.o
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obj-$(CONFIG_PCI_AARDVARK) += pci-aardvark.o
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obj-$(CONFIG_PCIE_DW_MVEBU) += pcie_dw_mvebu.o
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obj-$(CONFIG_PCIE_FSL) += pcie_fsl.o pcie_fsl_fixup.o
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obj-$(CONFIG_PCIE_LAYERSCAPE) += pcie_layerscape.o
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obj-$(CONFIG_PCIE_LAYERSCAPE) += pcie_layerscape.o pcie_layerscape_rc.o pcie_layerscape_ep.o
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obj-$(CONFIG_PCIE_LAYERSCAPE) += pcie_layerscape_fixup.o pcie_layerscape_fixup_common.o
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obj-$(CONFIG_PCIE_LAYERSCAPE_GEN4) += pcie_layerscape_gen4.o \
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pcie_layerscape_gen4_fixup.o \
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@ -1,18 +1,15 @@
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// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright 2017-2019 NXP
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* Copyright 2017-2020 NXP
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* Copyright 2014-2015 Freescale Semiconductor, Inc.
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* Layerscape PCIe driver
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*/
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#include <common.h>
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#include <log.h>
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#include <asm/arch/fsl_serdes.h>
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#include <pci.h>
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#include <asm/io.h>
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#include <errno.h>
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#include <malloc.h>
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#include <dm.h>
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#if defined(CONFIG_FSL_LSCH2) || defined(CONFIG_FSL_LSCH3) || \
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defined(CONFIG_ARM)
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#include <asm/arch/clock.h>
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@ -23,18 +20,17 @@ DECLARE_GLOBAL_DATA_PTR;
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LIST_HEAD(ls_pcie_list);
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static unsigned int dbi_readl(struct ls_pcie *pcie, unsigned int offset)
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unsigned int dbi_readl(struct ls_pcie *pcie, unsigned int offset)
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{
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return in_le32(pcie->dbi + offset);
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}
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static void dbi_writel(struct ls_pcie *pcie, unsigned int value,
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unsigned int offset)
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void dbi_writel(struct ls_pcie *pcie, unsigned int value, unsigned int offset)
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{
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out_le32(pcie->dbi + offset, value);
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}
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static unsigned int ctrl_readl(struct ls_pcie *pcie, unsigned int offset)
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unsigned int ctrl_readl(struct ls_pcie *pcie, unsigned int offset)
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{
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if (pcie->big_endian)
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return in_be32(pcie->ctrl + offset);
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@ -42,8 +38,8 @@ static unsigned int ctrl_readl(struct ls_pcie *pcie, unsigned int offset)
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return in_le32(pcie->ctrl + offset);
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}
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static void ctrl_writel(struct ls_pcie *pcie, unsigned int value,
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unsigned int offset)
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void ctrl_writel(struct ls_pcie *pcie, unsigned int value,
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unsigned int offset)
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{
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if (pcie->big_endian)
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out_be32(pcie->ctrl + offset, value);
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@ -51,6 +47,26 @@ static void ctrl_writel(struct ls_pcie *pcie, unsigned int value,
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out_le32(pcie->ctrl + offset, value);
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}
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void ls_pcie_dbi_ro_wr_en(struct ls_pcie *pcie)
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{
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u32 reg, val;
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reg = PCIE_MISC_CONTROL_1_OFF;
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val = dbi_readl(pcie, reg);
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val |= PCIE_DBI_RO_WR_EN;
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dbi_writel(pcie, val, reg);
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}
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void ls_pcie_dbi_ro_wr_dis(struct ls_pcie *pcie)
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{
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u32 reg, val;
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reg = PCIE_MISC_CONTROL_1_OFF;
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val = dbi_readl(pcie, reg);
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val &= ~PCIE_DBI_RO_WR_EN;
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dbi_writel(pcie, val, reg);
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}
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static int ls_pcie_ltssm(struct ls_pcie *pcie)
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{
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u32 state;
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@ -67,7 +83,7 @@ static int ls_pcie_ltssm(struct ls_pcie *pcie)
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return state;
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}
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static int ls_pcie_link_up(struct ls_pcie *pcie)
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int ls_pcie_link_up(struct ls_pcie *pcie)
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{
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int ltssm;
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@ -78,22 +94,8 @@ static int ls_pcie_link_up(struct ls_pcie *pcie)
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return 1;
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}
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static void ls_pcie_cfg0_set_busdev(struct ls_pcie *pcie, u32 busdev)
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{
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dbi_writel(pcie, PCIE_ATU_REGION_OUTBOUND | PCIE_ATU_REGION_INDEX0,
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PCIE_ATU_VIEWPORT);
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dbi_writel(pcie, busdev, PCIE_ATU_LOWER_TARGET);
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}
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static void ls_pcie_cfg1_set_busdev(struct ls_pcie *pcie, u32 busdev)
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{
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dbi_writel(pcie, PCIE_ATU_REGION_OUTBOUND | PCIE_ATU_REGION_INDEX1,
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PCIE_ATU_VIEWPORT);
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dbi_writel(pcie, busdev, PCIE_ATU_LOWER_TARGET);
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}
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static void ls_pcie_atu_outbound_set(struct ls_pcie *pcie, int idx, int type,
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u64 phys, u64 bus_addr, pci_size_t size)
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void ls_pcie_atu_outbound_set(struct ls_pcie *pcie, int idx, int type,
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u64 phys, u64 bus_addr, pci_size_t size)
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{
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dbi_writel(pcie, PCIE_ATU_REGION_OUTBOUND | idx, PCIE_ATU_VIEWPORT);
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dbi_writel(pcie, (u32)phys, PCIE_ATU_LOWER_BASE);
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@ -106,18 +108,18 @@ static void ls_pcie_atu_outbound_set(struct ls_pcie *pcie, int idx, int type,
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}
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/* Use bar match mode and MEM type as default */
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static void ls_pcie_atu_inbound_set(struct ls_pcie *pcie, int idx,
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int bar, u64 phys)
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void ls_pcie_atu_inbound_set(struct ls_pcie *pcie, int idx, int type,
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int bar, u64 phys)
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{
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dbi_writel(pcie, PCIE_ATU_REGION_INBOUND | idx, PCIE_ATU_VIEWPORT);
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dbi_writel(pcie, (u32)phys, PCIE_ATU_LOWER_TARGET);
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dbi_writel(pcie, phys >> 32, PCIE_ATU_UPPER_TARGET);
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dbi_writel(pcie, PCIE_ATU_TYPE_MEM, PCIE_ATU_CR1);
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dbi_writel(pcie, type, PCIE_ATU_CR1);
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dbi_writel(pcie, PCIE_ATU_ENABLE | PCIE_ATU_BAR_MODE_ENABLE |
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PCIE_ATU_BAR_NUM(bar), PCIE_ATU_CR2);
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}
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static void ls_pcie_dump_atu(struct ls_pcie *pcie)
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void ls_pcie_dump_atu(struct ls_pcie *pcie)
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{
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int i;
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@ -134,431 +136,10 @@ static void ls_pcie_dump_atu(struct ls_pcie *pcie)
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debug("\tUPPER BUS 0x%08x\n",
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dbi_readl(pcie, PCIE_ATU_UPPER_TARGET));
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debug("\tLIMIT 0x%08x\n",
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readl(pcie->dbi + PCIE_ATU_LIMIT));
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dbi_readl(pcie, PCIE_ATU_LIMIT));
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debug("\tCR1 0x%08x\n",
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dbi_readl(pcie, PCIE_ATU_CR1));
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debug("\tCR2 0x%08x\n",
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dbi_readl(pcie, PCIE_ATU_CR2));
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}
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}
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static void ls_pcie_setup_atu(struct ls_pcie *pcie)
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{
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struct pci_region *io, *mem, *pref;
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unsigned long long offset = 0;
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int idx = 0;
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uint svr;
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svr = get_svr();
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if (((svr >> SVR_VAR_PER_SHIFT) & SVR_LS102XA_MASK) == SVR_LS102XA) {
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offset = LS1021_PCIE_SPACE_OFFSET +
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LS1021_PCIE_SPACE_SIZE * pcie->idx;
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}
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/* ATU 0 : OUTBOUND : CFG0 */
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ls_pcie_atu_outbound_set(pcie, PCIE_ATU_REGION_INDEX0,
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PCIE_ATU_TYPE_CFG0,
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pcie->cfg_res.start + offset,
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0,
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fdt_resource_size(&pcie->cfg_res) / 2);
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/* ATU 1 : OUTBOUND : CFG1 */
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ls_pcie_atu_outbound_set(pcie, PCIE_ATU_REGION_INDEX1,
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PCIE_ATU_TYPE_CFG1,
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pcie->cfg_res.start + offset +
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fdt_resource_size(&pcie->cfg_res) / 2,
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0,
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fdt_resource_size(&pcie->cfg_res) / 2);
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pci_get_regions(pcie->bus, &io, &mem, &pref);
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idx = PCIE_ATU_REGION_INDEX1 + 1;
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/* Fix the pcie memory map for LS2088A series SoCs */
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svr = (svr >> SVR_VAR_PER_SHIFT) & 0xFFFFFE;
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if (svr == SVR_LS2088A || svr == SVR_LS2084A ||
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svr == SVR_LS2048A || svr == SVR_LS2044A ||
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svr == SVR_LS2081A || svr == SVR_LS2041A) {
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if (io)
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io->phys_start = (io->phys_start &
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(PCIE_PHYS_SIZE - 1)) +
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LS2088A_PCIE1_PHYS_ADDR +
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LS2088A_PCIE_PHYS_SIZE * pcie->idx;
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if (mem)
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mem->phys_start = (mem->phys_start &
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(PCIE_PHYS_SIZE - 1)) +
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LS2088A_PCIE1_PHYS_ADDR +
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LS2088A_PCIE_PHYS_SIZE * pcie->idx;
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if (pref)
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pref->phys_start = (pref->phys_start &
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(PCIE_PHYS_SIZE - 1)) +
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LS2088A_PCIE1_PHYS_ADDR +
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LS2088A_PCIE_PHYS_SIZE * pcie->idx;
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}
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if (io)
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/* ATU : OUTBOUND : IO */
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ls_pcie_atu_outbound_set(pcie, idx++,
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PCIE_ATU_TYPE_IO,
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io->phys_start + offset,
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io->bus_start,
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io->size);
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if (mem)
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/* ATU : OUTBOUND : MEM */
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ls_pcie_atu_outbound_set(pcie, idx++,
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PCIE_ATU_TYPE_MEM,
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mem->phys_start + offset,
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mem->bus_start,
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mem->size);
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if (pref)
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/* ATU : OUTBOUND : pref */
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ls_pcie_atu_outbound_set(pcie, idx++,
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PCIE_ATU_TYPE_MEM,
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pref->phys_start + offset,
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pref->bus_start,
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pref->size);
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ls_pcie_dump_atu(pcie);
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}
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/* Return 0 if the address is valid, -errno if not valid */
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static int ls_pcie_addr_valid(struct ls_pcie *pcie, pci_dev_t bdf)
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{
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struct udevice *bus = pcie->bus;
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if (pcie->mode == PCI_HEADER_TYPE_NORMAL)
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return -ENODEV;
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if (!pcie->enabled)
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return -ENXIO;
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if (PCI_BUS(bdf) < bus->seq)
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return -EINVAL;
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if ((PCI_BUS(bdf) > bus->seq) && (!ls_pcie_link_up(pcie)))
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return -EINVAL;
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if (PCI_BUS(bdf) <= (bus->seq + 1) && (PCI_DEV(bdf) > 0))
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return -EINVAL;
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return 0;
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}
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int ls_pcie_conf_address(const struct udevice *bus, pci_dev_t bdf,
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uint offset, void **paddress)
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{
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struct ls_pcie *pcie = dev_get_priv(bus);
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u32 busdev;
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if (ls_pcie_addr_valid(pcie, bdf))
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return -EINVAL;
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if (PCI_BUS(bdf) == bus->seq) {
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*paddress = pcie->dbi + offset;
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return 0;
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}
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busdev = PCIE_ATU_BUS(PCI_BUS(bdf) - bus->seq) |
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PCIE_ATU_DEV(PCI_DEV(bdf)) |
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PCIE_ATU_FUNC(PCI_FUNC(bdf));
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if (PCI_BUS(bdf) == bus->seq + 1) {
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ls_pcie_cfg0_set_busdev(pcie, busdev);
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*paddress = pcie->cfg0 + offset;
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} else {
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ls_pcie_cfg1_set_busdev(pcie, busdev);
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*paddress = pcie->cfg1 + offset;
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}
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return 0;
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}
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static int ls_pcie_read_config(const struct udevice *bus, pci_dev_t bdf,
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uint offset, ulong *valuep,
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enum pci_size_t size)
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{
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return pci_generic_mmap_read_config(bus, ls_pcie_conf_address,
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bdf, offset, valuep, size);
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}
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static int ls_pcie_write_config(struct udevice *bus, pci_dev_t bdf,
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uint offset, ulong value,
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enum pci_size_t size)
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{
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return pci_generic_mmap_write_config(bus, ls_pcie_conf_address,
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bdf, offset, value, size);
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}
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/* Clear multi-function bit */
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static void ls_pcie_clear_multifunction(struct ls_pcie *pcie)
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{
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writeb(PCI_HEADER_TYPE_BRIDGE, pcie->dbi + PCI_HEADER_TYPE);
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}
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/* Fix class value */
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static void ls_pcie_fix_class(struct ls_pcie *pcie)
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{
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writew(PCI_CLASS_BRIDGE_PCI, pcie->dbi + PCI_CLASS_DEVICE);
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}
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/* Drop MSG TLP except for Vendor MSG */
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static void ls_pcie_drop_msg_tlp(struct ls_pcie *pcie)
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{
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u32 val;
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val = dbi_readl(pcie, PCIE_STRFMR1);
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val &= 0xDFFFFFFF;
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dbi_writel(pcie, val, PCIE_STRFMR1);
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}
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/* Disable all bars in RC mode */
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static void ls_pcie_disable_bars(struct ls_pcie *pcie)
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{
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dbi_writel(pcie, 0, PCIE_CS2_OFFSET + PCI_BASE_ADDRESS_0);
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dbi_writel(pcie, 0, PCIE_CS2_OFFSET + PCI_BASE_ADDRESS_1);
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dbi_writel(pcie, 0xfffffffe, PCIE_CS2_OFFSET + PCI_ROM_ADDRESS1);
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}
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static void ls_pcie_setup_ctrl(struct ls_pcie *pcie)
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{
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ls_pcie_setup_atu(pcie);
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dbi_writel(pcie, 1, PCIE_DBI_RO_WR_EN);
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ls_pcie_fix_class(pcie);
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ls_pcie_clear_multifunction(pcie);
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ls_pcie_drop_msg_tlp(pcie);
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dbi_writel(pcie, 0, PCIE_DBI_RO_WR_EN);
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ls_pcie_disable_bars(pcie);
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pcie->stream_id_cur = 0;
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}
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static void ls_pcie_ep_setup_atu(struct ls_pcie *pcie)
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{
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u64 phys = CONFIG_SYS_PCI_EP_MEMORY_BASE;
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/* ATU 0 : INBOUND : map BAR0 */
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ls_pcie_atu_inbound_set(pcie, 0, 0, phys);
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/* ATU 1 : INBOUND : map BAR1 */
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phys += PCIE_BAR1_SIZE;
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ls_pcie_atu_inbound_set(pcie, 1, 1, phys);
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/* ATU 2 : INBOUND : map BAR2 */
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phys += PCIE_BAR2_SIZE;
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ls_pcie_atu_inbound_set(pcie, 2, 2, phys);
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/* ATU 3 : INBOUND : map BAR4 */
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phys = CONFIG_SYS_PCI_EP_MEMORY_BASE + PCIE_BAR4_SIZE;
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ls_pcie_atu_inbound_set(pcie, 3, 4, phys);
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/* ATU 0 : OUTBOUND : map MEM */
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ls_pcie_atu_outbound_set(pcie, 0,
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PCIE_ATU_TYPE_MEM,
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pcie->cfg_res.start,
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0,
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CONFIG_SYS_PCI_MEMORY_SIZE);
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}
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/* BAR0 and BAR1 are 32bit BAR2 and BAR4 are 64bit */
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static void ls_pcie_ep_setup_bar(void *bar_base, int bar, u32 size)
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{
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/* The least inbound window is 4KiB */
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if (size < 4 * 1024)
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return;
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switch (bar) {
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case 0:
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writel(size - 1, bar_base + PCI_BASE_ADDRESS_0);
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break;
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case 1:
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writel(size - 1, bar_base + PCI_BASE_ADDRESS_1);
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break;
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case 2:
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writel(size - 1, bar_base + PCI_BASE_ADDRESS_2);
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writel(0, bar_base + PCI_BASE_ADDRESS_3);
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break;
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case 4:
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writel(size - 1, bar_base + PCI_BASE_ADDRESS_4);
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writel(0, bar_base + PCI_BASE_ADDRESS_5);
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break;
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default:
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break;
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}
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}
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static void ls_pcie_ep_setup_bars(void *bar_base)
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{
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/* BAR0 - 32bit - 4K configuration */
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ls_pcie_ep_setup_bar(bar_base, 0, PCIE_BAR0_SIZE);
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/* BAR1 - 32bit - 8K MSIX*/
|
||||
ls_pcie_ep_setup_bar(bar_base, 1, PCIE_BAR1_SIZE);
|
||||
/* BAR2 - 64bit - 4K MEM desciptor */
|
||||
ls_pcie_ep_setup_bar(bar_base, 2, PCIE_BAR2_SIZE);
|
||||
/* BAR4 - 64bit - 1M MEM*/
|
||||
ls_pcie_ep_setup_bar(bar_base, 4, PCIE_BAR4_SIZE);
|
||||
}
|
||||
|
||||
static void ls_pcie_ep_enable_cfg(struct ls_pcie *pcie)
|
||||
{
|
||||
u32 config;
|
||||
|
||||
config = ctrl_readl(pcie, PCIE_PF_CONFIG);
|
||||
config |= PCIE_CONFIG_READY;
|
||||
ctrl_writel(pcie, config, PCIE_PF_CONFIG);
|
||||
}
|
||||
|
||||
static void ls_pcie_setup_ep(struct ls_pcie *pcie)
|
||||
{
|
||||
u32 sriov;
|
||||
|
||||
sriov = readl(pcie->dbi + PCIE_SRIOV);
|
||||
if (PCI_EXT_CAP_ID(sriov) == PCI_EXT_CAP_ID_SRIOV) {
|
||||
int pf, vf;
|
||||
|
||||
for (pf = 0; pf < PCIE_PF_NUM; pf++) {
|
||||
for (vf = 0; vf <= PCIE_VF_NUM; vf++) {
|
||||
ctrl_writel(pcie, PCIE_LCTRL0_VAL(pf, vf),
|
||||
PCIE_PF_VF_CTRL);
|
||||
|
||||
ls_pcie_ep_setup_bars(pcie->dbi);
|
||||
ls_pcie_ep_setup_atu(pcie);
|
||||
}
|
||||
}
|
||||
/* Disable CFG2 */
|
||||
ctrl_writel(pcie, 0, PCIE_PF_VF_CTRL);
|
||||
} else {
|
||||
ls_pcie_ep_setup_bars(pcie->dbi + PCIE_NO_SRIOV_BAR_BASE);
|
||||
ls_pcie_ep_setup_atu(pcie);
|
||||
}
|
||||
|
||||
ls_pcie_ep_enable_cfg(pcie);
|
||||
}
|
||||
|
||||
static int ls_pcie_probe(struct udevice *dev)
|
||||
{
|
||||
struct ls_pcie *pcie = dev_get_priv(dev);
|
||||
const void *fdt = gd->fdt_blob;
|
||||
int node = dev_of_offset(dev);
|
||||
u16 link_sta;
|
||||
uint svr;
|
||||
int ret;
|
||||
fdt_size_t cfg_size;
|
||||
|
||||
pcie->bus = dev;
|
||||
|
||||
ret = fdt_get_named_resource(fdt, node, "reg", "reg-names",
|
||||
"dbi", &pcie->dbi_res);
|
||||
if (ret) {
|
||||
printf("ls-pcie: resource \"dbi\" not found\n");
|
||||
return ret;
|
||||
}
|
||||
|
||||
pcie->idx = (pcie->dbi_res.start - PCIE_SYS_BASE_ADDR) / PCIE_CCSR_SIZE;
|
||||
|
||||
list_add(&pcie->list, &ls_pcie_list);
|
||||
|
||||
pcie->enabled = is_serdes_configured(PCIE_SRDS_PRTCL(pcie->idx));
|
||||
if (!pcie->enabled) {
|
||||
printf("PCIe%d: %s disabled\n", pcie->idx, dev->name);
|
||||
return 0;
|
||||
}
|
||||
|
||||
pcie->dbi = map_physmem(pcie->dbi_res.start,
|
||||
fdt_resource_size(&pcie->dbi_res),
|
||||
MAP_NOCACHE);
|
||||
|
||||
ret = fdt_get_named_resource(fdt, node, "reg", "reg-names",
|
||||
"lut", &pcie->lut_res);
|
||||
if (!ret)
|
||||
pcie->lut = map_physmem(pcie->lut_res.start,
|
||||
fdt_resource_size(&pcie->lut_res),
|
||||
MAP_NOCACHE);
|
||||
|
||||
ret = fdt_get_named_resource(fdt, node, "reg", "reg-names",
|
||||
"ctrl", &pcie->ctrl_res);
|
||||
if (!ret)
|
||||
pcie->ctrl = map_physmem(pcie->ctrl_res.start,
|
||||
fdt_resource_size(&pcie->ctrl_res),
|
||||
MAP_NOCACHE);
|
||||
if (!pcie->ctrl)
|
||||
pcie->ctrl = pcie->lut;
|
||||
|
||||
if (!pcie->ctrl) {
|
||||
printf("%s: NOT find CTRL\n", dev->name);
|
||||
return -1;
|
||||
}
|
||||
|
||||
ret = fdt_get_named_resource(fdt, node, "reg", "reg-names",
|
||||
"config", &pcie->cfg_res);
|
||||
if (ret) {
|
||||
printf("%s: resource \"config\" not found\n", dev->name);
|
||||
return ret;
|
||||
}
|
||||
|
||||
/*
|
||||
* Fix the pcie memory map address and PF control registers address
|
||||
* for LS2088A series SoCs
|
||||
*/
|
||||
svr = get_svr();
|
||||
svr = (svr >> SVR_VAR_PER_SHIFT) & 0xFFFFFE;
|
||||
if (svr == SVR_LS2088A || svr == SVR_LS2084A ||
|
||||
svr == SVR_LS2048A || svr == SVR_LS2044A ||
|
||||
svr == SVR_LS2081A || svr == SVR_LS2041A) {
|
||||
cfg_size = fdt_resource_size(&pcie->cfg_res);
|
||||
pcie->cfg_res.start = LS2088A_PCIE1_PHYS_ADDR +
|
||||
LS2088A_PCIE_PHYS_SIZE * pcie->idx;
|
||||
pcie->cfg_res.end = pcie->cfg_res.start + cfg_size;
|
||||
pcie->ctrl = pcie->lut + 0x40000;
|
||||
}
|
||||
|
||||
pcie->cfg0 = map_physmem(pcie->cfg_res.start,
|
||||
fdt_resource_size(&pcie->cfg_res),
|
||||
MAP_NOCACHE);
|
||||
pcie->cfg1 = pcie->cfg0 + fdt_resource_size(&pcie->cfg_res) / 2;
|
||||
|
||||
pcie->big_endian = fdtdec_get_bool(fdt, node, "big-endian");
|
||||
|
||||
debug("%s dbi:%lx lut:%lx ctrl:0x%lx cfg0:0x%lx, big-endian:%d\n",
|
||||
dev->name, (unsigned long)pcie->dbi, (unsigned long)pcie->lut,
|
||||
(unsigned long)pcie->ctrl, (unsigned long)pcie->cfg0,
|
||||
pcie->big_endian);
|
||||
|
||||
pcie->mode = readb(pcie->dbi + PCI_HEADER_TYPE) & 0x7f;
|
||||
|
||||
if (pcie->mode == PCI_HEADER_TYPE_NORMAL) {
|
||||
printf("PCIe%u: %s %s", pcie->idx, dev->name, "Endpoint");
|
||||
ls_pcie_setup_ep(pcie);
|
||||
} else {
|
||||
printf("PCIe%u: %s %s", pcie->idx, dev->name, "Root Complex");
|
||||
ls_pcie_setup_ctrl(pcie);
|
||||
}
|
||||
|
||||
if (!ls_pcie_link_up(pcie)) {
|
||||
/* Let the user know there's no PCIe link */
|
||||
printf(": no link\n");
|
||||
return 0;
|
||||
}
|
||||
|
||||
/* Print the negotiated PCIe link width */
|
||||
link_sta = readw(pcie->dbi + PCIE_LINK_STA);
|
||||
printf(": x%d gen%d\n", (link_sta & PCIE_LINK_WIDTH_MASK) >> 4,
|
||||
link_sta & PCIE_LINK_SPEED_MASK);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static const struct dm_pci_ops ls_pcie_ops = {
|
||||
.read_config = ls_pcie_read_config,
|
||||
.write_config = ls_pcie_write_config,
|
||||
};
|
||||
|
||||
static const struct udevice_id ls_pcie_ids[] = {
|
||||
{ .compatible = "fsl,ls-pcie" },
|
||||
{ }
|
||||
};
|
||||
|
||||
U_BOOT_DRIVER(pci_layerscape) = {
|
||||
.name = "pci_layerscape",
|
||||
.id = UCLASS_PCI,
|
||||
.of_match = ls_pcie_ids,
|
||||
.ops = &ls_pcie_ops,
|
||||
.probe = ls_pcie_probe,
|
||||
.priv_auto_alloc_size = sizeof(struct ls_pcie),
|
||||
};
|
||||
|
|
|
@ -1,6 +1,6 @@
|
|||
/* SPDX-License-Identifier: GPL-2.0+ */
|
||||
/*
|
||||
* Copyright 2017-2019 NXP
|
||||
* Copyright 2017-2020 NXP
|
||||
* Copyright 2014-2015 Freescale Semiconductor, Inc.
|
||||
* Layerscape PCIe driver
|
||||
*/
|
||||
|
@ -60,7 +60,8 @@
|
|||
/* DBI registers */
|
||||
#define PCIE_SRIOV 0x178
|
||||
#define PCIE_STRFMR1 0x71c /* Symbol Timer & Filter Mask Register1 */
|
||||
#define PCIE_DBI_RO_WR_EN 0x8bc
|
||||
#define PCIE_DBI_RO_WR_EN BIT(0)
|
||||
#define PCIE_MISC_CONTROL_1_OFF 0x8BC
|
||||
|
||||
#define PCIE_LINK_CAP 0x7c
|
||||
#define PCIE_LINK_SPEED_MASK 0xf
|
||||
|
@ -82,7 +83,7 @@
|
|||
PCIE_LCTRL0_CFG2_ENABLE)
|
||||
|
||||
#define PCIE_NO_SRIOV_BAR_BASE 0x1000
|
||||
|
||||
#define FSL_PCIE_EP_MIN_APERTURE 4096 /* 4 Kbytes */
|
||||
#define PCIE_PF_NUM 2
|
||||
#define PCIE_VF_NUM 64
|
||||
|
||||
|
@ -129,25 +130,52 @@
|
|||
#define LS1021_LTSSM_STATE_SHIFT 20
|
||||
|
||||
struct ls_pcie {
|
||||
void __iomem *dbi;
|
||||
void __iomem *lut;
|
||||
void __iomem *ctrl;
|
||||
int idx;
|
||||
bool big_endian;
|
||||
int mode;
|
||||
};
|
||||
|
||||
struct ls_pcie_rc {
|
||||
struct ls_pcie *pcie;
|
||||
struct list_head list;
|
||||
struct udevice *bus;
|
||||
struct fdt_resource dbi_res;
|
||||
struct fdt_resource lut_res;
|
||||
struct fdt_resource ctrl_res;
|
||||
struct fdt_resource cfg_res;
|
||||
void __iomem *dbi;
|
||||
void __iomem *lut;
|
||||
void __iomem *ctrl;
|
||||
void __iomem *cfg0;
|
||||
void __iomem *cfg1;
|
||||
bool big_endian;
|
||||
bool enabled;
|
||||
int next_lut_index;
|
||||
int stream_id_cur;
|
||||
int mode;
|
||||
};
|
||||
|
||||
struct ls_pcie_ep {
|
||||
struct fdt_resource addr_res;
|
||||
struct ls_pcie *pcie;
|
||||
struct udevice *bus;
|
||||
void __iomem *addr;
|
||||
u32 num_ib_wins;
|
||||
u32 num_ob_wins;
|
||||
u8 max_functions;
|
||||
};
|
||||
|
||||
extern struct list_head ls_pcie_list;
|
||||
|
||||
unsigned int dbi_readl(struct ls_pcie *pcie, unsigned int offset);
|
||||
void dbi_writel(struct ls_pcie *pcie, unsigned int value, unsigned int offset);
|
||||
unsigned int ctrl_readl(struct ls_pcie *pcie, unsigned int offset);
|
||||
void ctrl_writel(struct ls_pcie *pcie, unsigned int value, unsigned int offset);
|
||||
void ls_pcie_atu_outbound_set(struct ls_pcie *pcie, int idx, int type,
|
||||
u64 phys, u64 bus_addr, pci_size_t size);
|
||||
void ls_pcie_atu_inbound_set(struct ls_pcie *pcie, int idx, int type,
|
||||
int bar, u64 phys);
|
||||
void ls_pcie_dump_atu(struct ls_pcie *pcie);
|
||||
int ls_pcie_link_up(struct ls_pcie *pcie);
|
||||
void ls_pcie_dbi_ro_wr_en(struct ls_pcie *pcie);
|
||||
void ls_pcie_dbi_ro_wr_dis(struct ls_pcie *pcie);
|
||||
|
||||
#endif /* _PCIE_LAYERSCAPE_H_ */
|
||||
|
|
241
drivers/pci/pcie_layerscape_ep.c
Normal file
241
drivers/pci/pcie_layerscape_ep.c
Normal file
|
@ -0,0 +1,241 @@
|
|||
// SPDX-License-Identifier: GPL-2.0+
|
||||
/*
|
||||
* Copyright 2020 NXP
|
||||
* Layerscape PCIe EP driver
|
||||
*/
|
||||
|
||||
#include <common.h>
|
||||
#include <dm.h>
|
||||
#include <dm/devres.h>
|
||||
#include <errno.h>
|
||||
#include <pci_ep.h>
|
||||
#include <asm/io.h>
|
||||
#include <linux/sizes.h>
|
||||
#include <linux/log2.h>
|
||||
#include "pcie_layerscape.h"
|
||||
|
||||
DECLARE_GLOBAL_DATA_PTR;
|
||||
|
||||
static void ls_pcie_ep_enable_cfg(struct ls_pcie_ep *pcie_ep)
|
||||
{
|
||||
struct ls_pcie *pcie = pcie_ep->pcie;
|
||||
u32 config;
|
||||
|
||||
config = ctrl_readl(pcie, PCIE_PF_CONFIG);
|
||||
config |= PCIE_CONFIG_READY;
|
||||
ctrl_writel(pcie, config, PCIE_PF_CONFIG);
|
||||
}
|
||||
|
||||
static int ls_ep_set_bar(struct udevice *dev, uint fn, struct pci_bar *ep_bar)
|
||||
{
|
||||
struct ls_pcie_ep *pcie_ep = dev_get_priv(dev);
|
||||
struct ls_pcie *pcie = pcie_ep->pcie;
|
||||
dma_addr_t bar_phys = ep_bar->phys_addr;
|
||||
enum pci_barno bar = ep_bar->barno;
|
||||
u32 reg = PCI_BASE_ADDRESS_0 + (4 * bar);
|
||||
int flags = ep_bar->flags;
|
||||
int type, idx;
|
||||
u64 size;
|
||||
|
||||
idx = bar;
|
||||
/* BAR size is 2^(aperture + 11) */
|
||||
size = max_t(size_t, ep_bar->size, FSL_PCIE_EP_MIN_APERTURE);
|
||||
|
||||
if (!(flags & PCI_BASE_ADDRESS_SPACE))
|
||||
type = PCIE_ATU_TYPE_MEM;
|
||||
else
|
||||
type = PCIE_ATU_TYPE_IO;
|
||||
|
||||
ls_pcie_atu_inbound_set(pcie, idx, bar, bar_phys, type);
|
||||
|
||||
dbi_writel(pcie, lower_32_bits(size - 1), reg + PCIE_NO_SRIOV_BAR_BASE);
|
||||
dbi_writel(pcie, flags, reg);
|
||||
|
||||
if (flags & PCI_BASE_ADDRESS_MEM_TYPE_64) {
|
||||
dbi_writel(pcie, upper_32_bits(size - 1),
|
||||
reg + 4 + PCIE_NO_SRIOV_BAR_BASE);
|
||||
dbi_writel(pcie, 0, reg + 4);
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static struct pci_ep_ops ls_pcie_ep_ops = {
|
||||
.set_bar = ls_ep_set_bar,
|
||||
};
|
||||
|
||||
static void ls_pcie_ep_setup_atu(struct ls_pcie_ep *pcie_ep)
|
||||
{
|
||||
struct ls_pcie *pcie = pcie_ep->pcie;
|
||||
u64 phys = CONFIG_SYS_PCI_EP_MEMORY_BASE;
|
||||
|
||||
/* ATU 0 : INBOUND : map BAR0 */
|
||||
ls_pcie_atu_inbound_set(pcie, 0, PCIE_ATU_TYPE_MEM, 0, phys);
|
||||
/* ATU 1 : INBOUND : map BAR1 */
|
||||
phys += PCIE_BAR1_SIZE;
|
||||
ls_pcie_atu_inbound_set(pcie, 1, PCIE_ATU_TYPE_MEM, 1, phys);
|
||||
/* ATU 2 : INBOUND : map BAR2 */
|
||||
phys += PCIE_BAR2_SIZE;
|
||||
ls_pcie_atu_inbound_set(pcie, 2, PCIE_ATU_TYPE_MEM, 2, phys);
|
||||
/* ATU 3 : INBOUND : map BAR4 */
|
||||
phys = CONFIG_SYS_PCI_EP_MEMORY_BASE + PCIE_BAR4_SIZE;
|
||||
ls_pcie_atu_inbound_set(pcie, 3, PCIE_ATU_TYPE_MEM, 4, phys);
|
||||
|
||||
/* ATU 0 : OUTBOUND : map MEM */
|
||||
ls_pcie_atu_outbound_set(pcie, 0,
|
||||
PCIE_ATU_TYPE_MEM,
|
||||
pcie_ep->addr_res.start,
|
||||
0,
|
||||
CONFIG_SYS_PCI_MEMORY_SIZE);
|
||||
}
|
||||
|
||||
/* BAR0 and BAR1 are 32bit BAR2 and BAR4 are 64bit */
|
||||
static void ls_pcie_ep_setup_bar(void *bar_base, int bar, u32 size)
|
||||
{
|
||||
/* The least inbound window is 4KiB */
|
||||
if (size < 4 * 1024)
|
||||
return;
|
||||
|
||||
switch (bar) {
|
||||
case 0:
|
||||
writel(size - 1, bar_base + PCI_BASE_ADDRESS_0);
|
||||
break;
|
||||
case 1:
|
||||
writel(size - 1, bar_base + PCI_BASE_ADDRESS_1);
|
||||
break;
|
||||
case 2:
|
||||
writel(size - 1, bar_base + PCI_BASE_ADDRESS_2);
|
||||
writel(0, bar_base + PCI_BASE_ADDRESS_3);
|
||||
break;
|
||||
case 4:
|
||||
writel(size - 1, bar_base + PCI_BASE_ADDRESS_4);
|
||||
writel(0, bar_base + PCI_BASE_ADDRESS_5);
|
||||
break;
|
||||
default:
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
static void ls_pcie_ep_setup_bars(void *bar_base)
|
||||
{
|
||||
/* BAR0 - 32bit - 4K configuration */
|
||||
ls_pcie_ep_setup_bar(bar_base, 0, PCIE_BAR0_SIZE);
|
||||
/* BAR1 - 32bit - 8K MSIX */
|
||||
ls_pcie_ep_setup_bar(bar_base, 1, PCIE_BAR1_SIZE);
|
||||
/* BAR2 - 64bit - 4K MEM descriptor */
|
||||
ls_pcie_ep_setup_bar(bar_base, 2, PCIE_BAR2_SIZE);
|
||||
/* BAR4 - 64bit - 1M MEM */
|
||||
ls_pcie_ep_setup_bar(bar_base, 4, PCIE_BAR4_SIZE);
|
||||
}
|
||||
|
||||
static void ls_pcie_setup_ep(struct ls_pcie_ep *pcie_ep)
|
||||
{
|
||||
u32 sriov;
|
||||
struct ls_pcie *pcie = pcie_ep->pcie;
|
||||
|
||||
sriov = readl(pcie->dbi + PCIE_SRIOV);
|
||||
if (PCI_EXT_CAP_ID(sriov) == PCI_EXT_CAP_ID_SRIOV) {
|
||||
int pf, vf;
|
||||
|
||||
for (pf = 0; pf < PCIE_PF_NUM; pf++) {
|
||||
for (vf = 0; vf <= PCIE_VF_NUM; vf++) {
|
||||
ctrl_writel(pcie, PCIE_LCTRL0_VAL(pf, vf),
|
||||
PCIE_PF_VF_CTRL);
|
||||
|
||||
ls_pcie_ep_setup_bars(pcie->dbi);
|
||||
ls_pcie_ep_setup_atu(pcie_ep);
|
||||
}
|
||||
}
|
||||
/* Disable CFG2 */
|
||||
ctrl_writel(pcie, 0, PCIE_PF_VF_CTRL);
|
||||
} else {
|
||||
ls_pcie_ep_setup_bars(pcie->dbi + PCIE_NO_SRIOV_BAR_BASE);
|
||||
ls_pcie_ep_setup_atu(pcie_ep);
|
||||
}
|
||||
|
||||
ls_pcie_ep_enable_cfg(pcie_ep);
|
||||
}
|
||||
|
||||
static int ls_pcie_ep_probe(struct udevice *dev)
|
||||
{
|
||||
struct ls_pcie_ep *pcie_ep = dev_get_priv(dev);
|
||||
struct ls_pcie *pcie;
|
||||
u16 link_sta;
|
||||
int ret;
|
||||
|
||||
pcie = devm_kmalloc(dev, sizeof(*pcie), GFP_KERNEL);
|
||||
if (!pcie)
|
||||
return -ENOMEM;
|
||||
|
||||
pcie_ep->pcie = pcie;
|
||||
|
||||
pcie->dbi = (void __iomem *)devfdt_get_addr_index(dev, 0);
|
||||
if (!pcie->dbi)
|
||||
return -ENOMEM;
|
||||
|
||||
pcie->ctrl = (void __iomem *)devfdt_get_addr_index(dev, 1);
|
||||
if (!pcie->ctrl)
|
||||
return -ENOMEM;
|
||||
|
||||
ret = fdt_get_named_resource(gd->fdt_blob, dev_of_offset(dev),
|
||||
"reg", "reg-names",
|
||||
"addr_space", &pcie_ep->addr_res);
|
||||
if (ret) {
|
||||
printf("%s: resource \"addr_space\" not found\n", dev->name);
|
||||
return ret;
|
||||
}
|
||||
|
||||
pcie->idx = ((unsigned long)pcie->dbi - PCIE_SYS_BASE_ADDR) /
|
||||
PCIE_CCSR_SIZE;
|
||||
|
||||
pcie->big_endian = fdtdec_get_bool(gd->fdt_blob, dev_of_offset(dev),
|
||||
"big-endian");
|
||||
|
||||
pcie->mode = readb(pcie->dbi + PCI_HEADER_TYPE) & 0x7f;
|
||||
if (pcie->mode != PCI_HEADER_TYPE_NORMAL)
|
||||
return 0;
|
||||
|
||||
pcie_ep->max_functions = fdtdec_get_int(gd->fdt_blob,
|
||||
dev_of_offset(dev),
|
||||
"max-functions", 1);
|
||||
pcie_ep->num_ib_wins = fdtdec_get_int(gd->fdt_blob, dev_of_offset(dev),
|
||||
"num-ib-windows", 8);
|
||||
pcie_ep->num_ob_wins = fdtdec_get_int(gd->fdt_blob, dev_of_offset(dev),
|
||||
"num-ob-windows", 8);
|
||||
|
||||
printf("PCIe%u: %s %s", pcie->idx, dev->name, "Endpoint");
|
||||
ls_pcie_setup_ep(pcie_ep);
|
||||
|
||||
if (!ls_pcie_link_up(pcie)) {
|
||||
/* Let the user know there's no PCIe link */
|
||||
printf(": no link\n");
|
||||
return 0;
|
||||
}
|
||||
|
||||
/* Print the negotiated PCIe link width */
|
||||
link_sta = readw(pcie->dbi + PCIE_LINK_STA);
|
||||
printf(": x%d gen%d\n", (link_sta & PCIE_LINK_WIDTH_MASK) >> 4,
|
||||
link_sta & PCIE_LINK_SPEED_MASK);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int ls_pcie_ep_remove(struct udevice *dev)
|
||||
{
|
||||
return 0;
|
||||
}
|
||||
|
||||
const struct udevice_id ls_pcie_ep_ids[] = {
|
||||
{ .compatible = "fsl,ls-pcie-ep" },
|
||||
{ }
|
||||
};
|
||||
|
||||
U_BOOT_DRIVER(pci_layerscape_ep) = {
|
||||
.name = "pci_layerscape_ep",
|
||||
.id = UCLASS_PCI_EP,
|
||||
.of_match = ls_pcie_ep_ids,
|
||||
.ops = &ls_pcie_ep_ops,
|
||||
.probe = ls_pcie_ep_probe,
|
||||
.remove = ls_pcie_ep_remove,
|
||||
.priv_auto_alloc_size = sizeof(struct ls_pcie_ep),
|
||||
};
|
|
@ -25,17 +25,19 @@
|
|||
/*
|
||||
* Return next available LUT index.
|
||||
*/
|
||||
static int ls_pcie_next_lut_index(struct ls_pcie *pcie)
|
||||
static int ls_pcie_next_lut_index(struct ls_pcie_rc *pcie_rc)
|
||||
{
|
||||
if (pcie->next_lut_index < PCIE_LUT_ENTRY_COUNT)
|
||||
return pcie->next_lut_index++;
|
||||
if (pcie_rc->next_lut_index < PCIE_LUT_ENTRY_COUNT)
|
||||
return pcie_rc->next_lut_index++;
|
||||
else
|
||||
return -ENOSPC; /* LUT is full */
|
||||
}
|
||||
|
||||
static void lut_writel(struct ls_pcie *pcie, unsigned int value,
|
||||
static void lut_writel(struct ls_pcie_rc *pcie_rc, unsigned int value,
|
||||
unsigned int offset)
|
||||
{
|
||||
struct ls_pcie *pcie = pcie_rc->pcie;
|
||||
|
||||
if (pcie->big_endian)
|
||||
out_be32(pcie->lut + offset, value);
|
||||
else
|
||||
|
@ -45,12 +47,12 @@ static void lut_writel(struct ls_pcie *pcie, unsigned int value,
|
|||
/*
|
||||
* Program a single LUT entry
|
||||
*/
|
||||
static void ls_pcie_lut_set_mapping(struct ls_pcie *pcie, int index, u32 devid,
|
||||
u32 streamid)
|
||||
static void ls_pcie_lut_set_mapping(struct ls_pcie_rc *pcie_rc, int index,
|
||||
u32 devid, u32 streamid)
|
||||
{
|
||||
/* leave mask as all zeroes, want to match all bits */
|
||||
lut_writel(pcie, devid << 16, PCIE_LUT_UDR(index));
|
||||
lut_writel(pcie, streamid | PCIE_LUT_ENABLE, PCIE_LUT_LDR(index));
|
||||
lut_writel(pcie_rc, devid << 16, PCIE_LUT_UDR(index));
|
||||
lut_writel(pcie_rc, streamid | PCIE_LUT_ENABLE, PCIE_LUT_LDR(index));
|
||||
}
|
||||
|
||||
/*
|
||||
|
@ -61,7 +63,8 @@ static void ls_pcie_lut_set_mapping(struct ls_pcie *pcie, int index, u32 devid,
|
|||
* msi-map = <[devid] [phandle-to-msi-ctrl] [stream-id] [count]
|
||||
* [devid] [phandle-to-msi-ctrl] [stream-id] [count]>;
|
||||
*/
|
||||
static void fdt_pcie_set_msi_map_entry_ls(void *blob, struct ls_pcie *pcie,
|
||||
static void fdt_pcie_set_msi_map_entry_ls(void *blob,
|
||||
struct ls_pcie_rc *pcie_rc,
|
||||
u32 devid, u32 streamid)
|
||||
{
|
||||
u32 *prop;
|
||||
|
@ -69,10 +72,11 @@ static void fdt_pcie_set_msi_map_entry_ls(void *blob, struct ls_pcie *pcie,
|
|||
int nodeoffset;
|
||||
uint svr;
|
||||
char *compat = NULL;
|
||||
struct ls_pcie *pcie = pcie_rc->pcie;
|
||||
|
||||
/* find pci controller node */
|
||||
nodeoffset = fdt_node_offset_by_compat_reg(blob, "fsl,ls-pcie",
|
||||
pcie->dbi_res.start);
|
||||
pcie_rc->dbi_res.start);
|
||||
if (nodeoffset < 0) {
|
||||
#ifdef CONFIG_FSL_PCIE_COMPAT /* Compatible with older version of dts node */
|
||||
svr = (get_svr() >> SVR_VAR_PER_SHIFT) & 0xFFFFFE;
|
||||
|
@ -84,7 +88,7 @@ static void fdt_pcie_set_msi_map_entry_ls(void *blob, struct ls_pcie *pcie,
|
|||
compat = CONFIG_FSL_PCIE_COMPAT;
|
||||
if (compat)
|
||||
nodeoffset = fdt_node_offset_by_compat_reg(blob,
|
||||
compat, pcie->dbi_res.start);
|
||||
compat, pcie_rc->dbi_res.start);
|
||||
#endif
|
||||
if (nodeoffset < 0)
|
||||
return;
|
||||
|
@ -114,7 +118,8 @@ static void fdt_pcie_set_msi_map_entry_ls(void *blob, struct ls_pcie *pcie,
|
|||
* iommu-map = <[devid] [phandle-to-iommu-ctrl] [stream-id] [count]
|
||||
* [devid] [phandle-to-iommu-ctrl] [stream-id] [count]>;
|
||||
*/
|
||||
static void fdt_pcie_set_iommu_map_entry_ls(void *blob, struct ls_pcie *pcie,
|
||||
static void fdt_pcie_set_iommu_map_entry_ls(void *blob,
|
||||
struct ls_pcie_rc *pcie_rc,
|
||||
u32 devid, u32 streamid)
|
||||
{
|
||||
u32 *prop;
|
||||
|
@ -123,10 +128,11 @@ static void fdt_pcie_set_iommu_map_entry_ls(void *blob, struct ls_pcie *pcie,
|
|||
int lenp;
|
||||
uint svr;
|
||||
char *compat = NULL;
|
||||
struct ls_pcie *pcie = pcie_rc->pcie;
|
||||
|
||||
/* find pci controller node */
|
||||
nodeoffset = fdt_node_offset_by_compat_reg(blob, "fsl,ls-pcie",
|
||||
pcie->dbi_res.start);
|
||||
pcie_rc->dbi_res.start);
|
||||
if (nodeoffset < 0) {
|
||||
#ifdef CONFIG_FSL_PCIE_COMPAT /* Compatible with older version of dts node */
|
||||
svr = (get_svr() >> SVR_VAR_PER_SHIFT) & 0xFFFFFE;
|
||||
|
@ -139,7 +145,7 @@ static void fdt_pcie_set_iommu_map_entry_ls(void *blob, struct ls_pcie *pcie,
|
|||
|
||||
if (compat)
|
||||
nodeoffset = fdt_node_offset_by_compat_reg(blob,
|
||||
compat, pcie->dbi_res.start);
|
||||
compat, pcie_rc->dbi_res.start);
|
||||
#endif
|
||||
if (nodeoffset < 0)
|
||||
return;
|
||||
|
@ -170,7 +176,7 @@ static void fdt_pcie_set_iommu_map_entry_ls(void *blob, struct ls_pcie *pcie,
|
|||
static void fdt_fixup_pcie_ls(void *blob)
|
||||
{
|
||||
struct udevice *dev, *bus;
|
||||
struct ls_pcie *pcie;
|
||||
struct ls_pcie_rc *pcie_rc;
|
||||
int streamid;
|
||||
int index;
|
||||
pci_dev_t bdf;
|
||||
|
@ -181,17 +187,18 @@ static void fdt_fixup_pcie_ls(void *blob)
|
|||
pci_find_next_device(&dev)) {
|
||||
for (bus = dev; device_is_on_pci_bus(bus);)
|
||||
bus = bus->parent;
|
||||
pcie = dev_get_priv(bus);
|
||||
pcie_rc = dev_get_priv(bus);
|
||||
|
||||
streamid = pcie_next_streamid(pcie->stream_id_cur, pcie->idx);
|
||||
streamid = pcie_next_streamid(pcie_rc->stream_id_cur,
|
||||
pcie_rc->pcie->idx);
|
||||
if (streamid < 0) {
|
||||
debug("ERROR: no stream ids free\n");
|
||||
continue;
|
||||
} else {
|
||||
pcie->stream_id_cur++;
|
||||
pcie_rc->stream_id_cur++;
|
||||
}
|
||||
|
||||
index = ls_pcie_next_lut_index(pcie);
|
||||
index = ls_pcie_next_lut_index(pcie_rc);
|
||||
if (index < 0) {
|
||||
debug("ERROR: no LUT indexes free\n");
|
||||
continue;
|
||||
|
@ -200,27 +207,28 @@ static void fdt_fixup_pcie_ls(void *blob)
|
|||
/* the DT fixup must be relative to the hose first_busno */
|
||||
bdf = dm_pci_get_bdf(dev) - PCI_BDF(bus->seq, 0, 0);
|
||||
/* map PCI b.d.f to streamID in LUT */
|
||||
ls_pcie_lut_set_mapping(pcie, index, bdf >> 8,
|
||||
ls_pcie_lut_set_mapping(pcie_rc, index, bdf >> 8,
|
||||
streamid);
|
||||
/* update msi-map in device tree */
|
||||
fdt_pcie_set_msi_map_entry_ls(blob, pcie, bdf >> 8,
|
||||
fdt_pcie_set_msi_map_entry_ls(blob, pcie_rc, bdf >> 8,
|
||||
streamid);
|
||||
/* update iommu-map in device tree */
|
||||
fdt_pcie_set_iommu_map_entry_ls(blob, pcie, bdf >> 8,
|
||||
fdt_pcie_set_iommu_map_entry_ls(blob, pcie_rc, bdf >> 8,
|
||||
streamid);
|
||||
}
|
||||
pcie_board_fix_fdt(blob);
|
||||
}
|
||||
#endif
|
||||
|
||||
static void ft_pcie_rc_fix(void *blob, struct ls_pcie *pcie)
|
||||
static void ft_pcie_rc_fix(void *blob, struct ls_pcie_rc *pcie_rc)
|
||||
{
|
||||
int off;
|
||||
uint svr;
|
||||
char *compat = NULL;
|
||||
struct ls_pcie *pcie = pcie_rc->pcie;
|
||||
|
||||
off = fdt_node_offset_by_compat_reg(blob, "fsl,ls-pcie",
|
||||
pcie->dbi_res.start);
|
||||
pcie_rc->dbi_res.start);
|
||||
if (off < 0) {
|
||||
#ifdef CONFIG_FSL_PCIE_COMPAT /* Compatible with older version of dts node */
|
||||
svr = (get_svr() >> SVR_VAR_PER_SHIFT) & 0xFFFFFE;
|
||||
|
@ -232,46 +240,47 @@ static void ft_pcie_rc_fix(void *blob, struct ls_pcie *pcie)
|
|||
compat = CONFIG_FSL_PCIE_COMPAT;
|
||||
if (compat)
|
||||
off = fdt_node_offset_by_compat_reg(blob,
|
||||
compat, pcie->dbi_res.start);
|
||||
compat, pcie_rc->dbi_res.start);
|
||||
#endif
|
||||
if (off < 0)
|
||||
return;
|
||||
}
|
||||
|
||||
if (pcie->enabled && pcie->mode == PCI_HEADER_TYPE_BRIDGE)
|
||||
if (pcie_rc->enabled && pcie->mode == PCI_HEADER_TYPE_BRIDGE)
|
||||
fdt_set_node_status(blob, off, FDT_STATUS_OKAY, 0);
|
||||
else
|
||||
fdt_set_node_status(blob, off, FDT_STATUS_DISABLED, 0);
|
||||
}
|
||||
|
||||
static void ft_pcie_ep_fix(void *blob, struct ls_pcie *pcie)
|
||||
static void ft_pcie_ep_fix(void *blob, struct ls_pcie_rc *pcie_rc)
|
||||
{
|
||||
int off;
|
||||
struct ls_pcie *pcie = pcie_rc->pcie;
|
||||
|
||||
off = fdt_node_offset_by_compat_reg(blob, CONFIG_FSL_PCIE_EP_COMPAT,
|
||||
pcie->dbi_res.start);
|
||||
pcie_rc->dbi_res.start);
|
||||
if (off < 0)
|
||||
return;
|
||||
|
||||
if (pcie->enabled && pcie->mode == PCI_HEADER_TYPE_NORMAL)
|
||||
if (pcie_rc->enabled && pcie->mode == PCI_HEADER_TYPE_NORMAL)
|
||||
fdt_set_node_status(blob, off, FDT_STATUS_OKAY, 0);
|
||||
else
|
||||
fdt_set_node_status(blob, off, FDT_STATUS_DISABLED, 0);
|
||||
}
|
||||
|
||||
static void ft_pcie_ls_setup(void *blob, struct ls_pcie *pcie)
|
||||
static void ft_pcie_ls_setup(void *blob, struct ls_pcie_rc *pcie_rc)
|
||||
{
|
||||
ft_pcie_ep_fix(blob, pcie);
|
||||
ft_pcie_rc_fix(blob, pcie);
|
||||
ft_pcie_ep_fix(blob, pcie_rc);
|
||||
ft_pcie_rc_fix(blob, pcie_rc);
|
||||
}
|
||||
|
||||
/* Fixup Kernel DT for PCIe */
|
||||
void ft_pci_setup_ls(void *blob, struct bd_info *bd)
|
||||
{
|
||||
struct ls_pcie *pcie;
|
||||
struct ls_pcie_rc *pcie_rc;
|
||||
|
||||
list_for_each_entry(pcie, &ls_pcie_list, list)
|
||||
ft_pcie_ls_setup(blob, pcie);
|
||||
list_for_each_entry(pcie_rc, &ls_pcie_list, list)
|
||||
ft_pcie_ls_setup(blob, pcie_rc);
|
||||
|
||||
#if defined(CONFIG_FSL_LSCH3) || defined(CONFIG_FSL_LSCH2)
|
||||
fdt_fixup_pcie_ls(blob);
|
||||
|
|
379
drivers/pci/pcie_layerscape_rc.c
Normal file
379
drivers/pci/pcie_layerscape_rc.c
Normal file
|
@ -0,0 +1,379 @@
|
|||
// SPDX-License-Identifier: GPL-2.0+
|
||||
/*
|
||||
* Copyright 2020 NXP
|
||||
* Layerscape PCIe driver
|
||||
*/
|
||||
|
||||
#include <common.h>
|
||||
#include <asm/arch/fsl_serdes.h>
|
||||
#include <pci.h>
|
||||
#include <asm/io.h>
|
||||
#include <errno.h>
|
||||
#include <malloc.h>
|
||||
#include <dm.h>
|
||||
#include <dm/devres.h>
|
||||
#if defined(CONFIG_FSL_LSCH2) || defined(CONFIG_FSL_LSCH3) || \
|
||||
defined(CONFIG_ARM)
|
||||
#include <asm/arch/clock.h>
|
||||
#endif
|
||||
#include "pcie_layerscape.h"
|
||||
|
||||
DECLARE_GLOBAL_DATA_PTR;
|
||||
|
||||
static void ls_pcie_cfg0_set_busdev(struct ls_pcie_rc *pcie_rc, u32 busdev)
|
||||
{
|
||||
struct ls_pcie *pcie = pcie_rc->pcie;
|
||||
|
||||
dbi_writel(pcie, PCIE_ATU_REGION_OUTBOUND | PCIE_ATU_REGION_INDEX0,
|
||||
PCIE_ATU_VIEWPORT);
|
||||
dbi_writel(pcie, busdev, PCIE_ATU_LOWER_TARGET);
|
||||
}
|
||||
|
||||
static void ls_pcie_cfg1_set_busdev(struct ls_pcie_rc *pcie_rc, u32 busdev)
|
||||
{
|
||||
struct ls_pcie *pcie = pcie_rc->pcie;
|
||||
|
||||
dbi_writel(pcie, PCIE_ATU_REGION_OUTBOUND | PCIE_ATU_REGION_INDEX1,
|
||||
PCIE_ATU_VIEWPORT);
|
||||
dbi_writel(pcie, busdev, PCIE_ATU_LOWER_TARGET);
|
||||
}
|
||||
|
||||
static void ls_pcie_setup_atu(struct ls_pcie_rc *pcie_rc)
|
||||
{
|
||||
struct pci_region *io, *mem, *pref;
|
||||
unsigned long long offset = 0;
|
||||
struct ls_pcie *pcie = pcie_rc->pcie;
|
||||
int idx = 0;
|
||||
uint svr;
|
||||
|
||||
svr = get_svr();
|
||||
if (((svr >> SVR_VAR_PER_SHIFT) & SVR_LS102XA_MASK) == SVR_LS102XA) {
|
||||
offset = LS1021_PCIE_SPACE_OFFSET +
|
||||
LS1021_PCIE_SPACE_SIZE * pcie->idx;
|
||||
}
|
||||
|
||||
/* ATU 0 : OUTBOUND : CFG0 */
|
||||
ls_pcie_atu_outbound_set(pcie, PCIE_ATU_REGION_INDEX0,
|
||||
PCIE_ATU_TYPE_CFG0,
|
||||
pcie_rc->cfg_res.start + offset,
|
||||
0,
|
||||
fdt_resource_size(&pcie_rc->cfg_res) / 2);
|
||||
/* ATU 1 : OUTBOUND : CFG1 */
|
||||
ls_pcie_atu_outbound_set(pcie, PCIE_ATU_REGION_INDEX1,
|
||||
PCIE_ATU_TYPE_CFG1,
|
||||
pcie_rc->cfg_res.start + offset +
|
||||
fdt_resource_size(&pcie_rc->cfg_res) / 2,
|
||||
0,
|
||||
fdt_resource_size(&pcie_rc->cfg_res) / 2);
|
||||
|
||||
pci_get_regions(pcie_rc->bus, &io, &mem, &pref);
|
||||
idx = PCIE_ATU_REGION_INDEX1 + 1;
|
||||
|
||||
/* Fix the pcie memory map for LS2088A series SoCs */
|
||||
svr = (svr >> SVR_VAR_PER_SHIFT) & 0xFFFFFE;
|
||||
if (svr == SVR_LS2088A || svr == SVR_LS2084A ||
|
||||
svr == SVR_LS2048A || svr == SVR_LS2044A ||
|
||||
svr == SVR_LS2081A || svr == SVR_LS2041A) {
|
||||
if (io)
|
||||
io->phys_start = (io->phys_start &
|
||||
(PCIE_PHYS_SIZE - 1)) +
|
||||
LS2088A_PCIE1_PHYS_ADDR +
|
||||
LS2088A_PCIE_PHYS_SIZE * pcie->idx;
|
||||
if (mem)
|
||||
mem->phys_start = (mem->phys_start &
|
||||
(PCIE_PHYS_SIZE - 1)) +
|
||||
LS2088A_PCIE1_PHYS_ADDR +
|
||||
LS2088A_PCIE_PHYS_SIZE * pcie->idx;
|
||||
if (pref)
|
||||
pref->phys_start = (pref->phys_start &
|
||||
(PCIE_PHYS_SIZE - 1)) +
|
||||
LS2088A_PCIE1_PHYS_ADDR +
|
||||
LS2088A_PCIE_PHYS_SIZE * pcie->idx;
|
||||
}
|
||||
|
||||
if (io)
|
||||
/* ATU : OUTBOUND : IO */
|
||||
ls_pcie_atu_outbound_set(pcie, idx++,
|
||||
PCIE_ATU_TYPE_IO,
|
||||
io->phys_start + offset,
|
||||
io->bus_start,
|
||||
io->size);
|
||||
|
||||
if (mem)
|
||||
/* ATU : OUTBOUND : MEM */
|
||||
ls_pcie_atu_outbound_set(pcie, idx++,
|
||||
PCIE_ATU_TYPE_MEM,
|
||||
mem->phys_start + offset,
|
||||
mem->bus_start,
|
||||
mem->size);
|
||||
|
||||
if (pref)
|
||||
/* ATU : OUTBOUND : pref */
|
||||
ls_pcie_atu_outbound_set(pcie, idx++,
|
||||
PCIE_ATU_TYPE_MEM,
|
||||
pref->phys_start + offset,
|
||||
pref->bus_start,
|
||||
pref->size);
|
||||
|
||||
ls_pcie_dump_atu(pcie);
|
||||
}
|
||||
|
||||
/* Return 0 if the address is valid, -errno if not valid */
|
||||
static int ls_pcie_addr_valid(struct ls_pcie_rc *pcie_rc, pci_dev_t bdf)
|
||||
{
|
||||
struct udevice *bus = pcie_rc->bus;
|
||||
struct ls_pcie *pcie = pcie_rc->pcie;
|
||||
|
||||
if (pcie->mode == PCI_HEADER_TYPE_NORMAL)
|
||||
return -ENODEV;
|
||||
|
||||
if (!pcie_rc->enabled)
|
||||
return -ENXIO;
|
||||
|
||||
if (PCI_BUS(bdf) < bus->seq)
|
||||
return -EINVAL;
|
||||
|
||||
if ((PCI_BUS(bdf) > bus->seq) && (!ls_pcie_link_up(pcie)))
|
||||
return -EINVAL;
|
||||
|
||||
if (PCI_BUS(bdf) <= (bus->seq + 1) && (PCI_DEV(bdf) > 0))
|
||||
return -EINVAL;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
int ls_pcie_conf_address(const struct udevice *bus, pci_dev_t bdf,
|
||||
uint offset, void **paddress)
|
||||
{
|
||||
struct ls_pcie_rc *pcie_rc = dev_get_priv(bus);
|
||||
struct ls_pcie *pcie = pcie_rc->pcie;
|
||||
u32 busdev;
|
||||
|
||||
if (ls_pcie_addr_valid(pcie_rc, bdf))
|
||||
return -EINVAL;
|
||||
|
||||
if (PCI_BUS(bdf) == bus->seq) {
|
||||
*paddress = pcie->dbi + offset;
|
||||
return 0;
|
||||
}
|
||||
|
||||
busdev = PCIE_ATU_BUS(PCI_BUS(bdf) - bus->seq) |
|
||||
PCIE_ATU_DEV(PCI_DEV(bdf)) |
|
||||
PCIE_ATU_FUNC(PCI_FUNC(bdf));
|
||||
|
||||
if (PCI_BUS(bdf) == bus->seq + 1) {
|
||||
ls_pcie_cfg0_set_busdev(pcie_rc, busdev);
|
||||
*paddress = pcie_rc->cfg0 + offset;
|
||||
} else {
|
||||
ls_pcie_cfg1_set_busdev(pcie_rc, busdev);
|
||||
*paddress = pcie_rc->cfg1 + offset;
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int ls_pcie_read_config(const struct udevice *bus, pci_dev_t bdf,
|
||||
uint offset, ulong *valuep,
|
||||
enum pci_size_t size)
|
||||
{
|
||||
return pci_generic_mmap_read_config(bus, ls_pcie_conf_address,
|
||||
bdf, offset, valuep, size);
|
||||
}
|
||||
|
||||
static int ls_pcie_write_config(struct udevice *bus, pci_dev_t bdf,
|
||||
uint offset, ulong value,
|
||||
enum pci_size_t size)
|
||||
{
|
||||
return pci_generic_mmap_write_config(bus, ls_pcie_conf_address,
|
||||
bdf, offset, value, size);
|
||||
}
|
||||
|
||||
/* Clear multi-function bit */
|
||||
static void ls_pcie_clear_multifunction(struct ls_pcie_rc *pcie_rc)
|
||||
{
|
||||
struct ls_pcie *pcie = pcie_rc->pcie;
|
||||
|
||||
writeb(PCI_HEADER_TYPE_BRIDGE, pcie->dbi + PCI_HEADER_TYPE);
|
||||
}
|
||||
|
||||
/* Fix class value */
|
||||
static void ls_pcie_fix_class(struct ls_pcie_rc *pcie_rc)
|
||||
{
|
||||
struct ls_pcie *pcie = pcie_rc->pcie;
|
||||
|
||||
writew(PCI_CLASS_BRIDGE_PCI, pcie->dbi + PCI_CLASS_DEVICE);
|
||||
}
|
||||
|
||||
/* Drop MSG TLP except for Vendor MSG */
|
||||
static void ls_pcie_drop_msg_tlp(struct ls_pcie_rc *pcie_rc)
|
||||
{
|
||||
struct ls_pcie *pcie = pcie_rc->pcie;
|
||||
u32 val;
|
||||
|
||||
val = dbi_readl(pcie, PCIE_STRFMR1);
|
||||
val &= 0xDFFFFFFF;
|
||||
dbi_writel(pcie, val, PCIE_STRFMR1);
|
||||
}
|
||||
|
||||
/* Disable all bars in RC mode */
|
||||
static void ls_pcie_disable_bars(struct ls_pcie_rc *pcie_rc)
|
||||
{
|
||||
struct ls_pcie *pcie = pcie_rc->pcie;
|
||||
|
||||
dbi_writel(pcie, 0, PCIE_CS2_OFFSET + PCI_BASE_ADDRESS_0);
|
||||
dbi_writel(pcie, 0, PCIE_CS2_OFFSET + PCI_BASE_ADDRESS_1);
|
||||
dbi_writel(pcie, 0xfffffffe, PCIE_CS2_OFFSET + PCI_ROM_ADDRESS1);
|
||||
}
|
||||
|
||||
static void ls_pcie_setup_ctrl(struct ls_pcie_rc *pcie_rc)
|
||||
{
|
||||
struct ls_pcie *pcie = pcie_rc->pcie;
|
||||
|
||||
ls_pcie_setup_atu(pcie_rc);
|
||||
|
||||
ls_pcie_dbi_ro_wr_en(pcie);
|
||||
ls_pcie_fix_class(pcie_rc);
|
||||
ls_pcie_clear_multifunction(pcie_rc);
|
||||
ls_pcie_drop_msg_tlp(pcie_rc);
|
||||
ls_pcie_dbi_ro_wr_dis(pcie);
|
||||
|
||||
ls_pcie_disable_bars(pcie_rc);
|
||||
pcie_rc->stream_id_cur = 0;
|
||||
}
|
||||
|
||||
static int ls_pcie_probe(struct udevice *dev)
|
||||
{
|
||||
struct ls_pcie_rc *pcie_rc = dev_get_priv(dev);
|
||||
const void *fdt = gd->fdt_blob;
|
||||
int node = dev_of_offset(dev);
|
||||
struct ls_pcie *pcie;
|
||||
u16 link_sta;
|
||||
uint svr;
|
||||
int ret;
|
||||
fdt_size_t cfg_size;
|
||||
|
||||
pcie_rc->bus = dev;
|
||||
|
||||
pcie = devm_kmalloc(dev, sizeof(*pcie), GFP_KERNEL);
|
||||
if (!pcie)
|
||||
return -ENOMEM;
|
||||
|
||||
pcie_rc->pcie = pcie;
|
||||
|
||||
ret = fdt_get_named_resource(fdt, node, "reg", "reg-names",
|
||||
"dbi", &pcie_rc->dbi_res);
|
||||
if (ret) {
|
||||
printf("ls-pcie: resource \"dbi\" not found\n");
|
||||
return ret;
|
||||
}
|
||||
|
||||
pcie->idx = (pcie_rc->dbi_res.start - PCIE_SYS_BASE_ADDR) /
|
||||
PCIE_CCSR_SIZE;
|
||||
|
||||
list_add(&pcie_rc->list, &ls_pcie_list);
|
||||
|
||||
pcie_rc->enabled = is_serdes_configured(PCIE_SRDS_PRTCL(pcie->idx));
|
||||
if (!pcie_rc->enabled) {
|
||||
printf("PCIe%d: %s disabled\n", pcie->idx, dev->name);
|
||||
return 0;
|
||||
}
|
||||
|
||||
pcie->dbi = map_physmem(pcie_rc->dbi_res.start,
|
||||
fdt_resource_size(&pcie_rc->dbi_res),
|
||||
MAP_NOCACHE);
|
||||
|
||||
pcie->mode = readb(pcie->dbi + PCI_HEADER_TYPE) & 0x7f;
|
||||
if (pcie->mode == PCI_HEADER_TYPE_NORMAL)
|
||||
return 0;
|
||||
|
||||
ret = fdt_get_named_resource(fdt, node, "reg", "reg-names",
|
||||
"lut", &pcie_rc->lut_res);
|
||||
if (!ret)
|
||||
pcie->lut = map_physmem(pcie_rc->lut_res.start,
|
||||
fdt_resource_size(&pcie_rc->lut_res),
|
||||
MAP_NOCACHE);
|
||||
|
||||
ret = fdt_get_named_resource(fdt, node, "reg", "reg-names",
|
||||
"ctrl", &pcie_rc->ctrl_res);
|
||||
if (!ret)
|
||||
pcie->ctrl = map_physmem(pcie_rc->ctrl_res.start,
|
||||
fdt_resource_size(&pcie_rc->ctrl_res),
|
||||
MAP_NOCACHE);
|
||||
if (!pcie->ctrl)
|
||||
pcie->ctrl = pcie->lut;
|
||||
|
||||
if (!pcie->ctrl) {
|
||||
printf("%s: NOT find CTRL\n", dev->name);
|
||||
return -1;
|
||||
}
|
||||
|
||||
ret = fdt_get_named_resource(fdt, node, "reg", "reg-names",
|
||||
"config", &pcie_rc->cfg_res);
|
||||
if (ret) {
|
||||
printf("%s: resource \"config\" not found\n", dev->name);
|
||||
return ret;
|
||||
}
|
||||
|
||||
/*
|
||||
* Fix the pcie memory map address and PF control registers address
|
||||
* for LS2088A series SoCs
|
||||
*/
|
||||
svr = get_svr();
|
||||
svr = (svr >> SVR_VAR_PER_SHIFT) & 0xFFFFFE;
|
||||
if (svr == SVR_LS2088A || svr == SVR_LS2084A ||
|
||||
svr == SVR_LS2048A || svr == SVR_LS2044A ||
|
||||
svr == SVR_LS2081A || svr == SVR_LS2041A) {
|
||||
cfg_size = fdt_resource_size(&pcie_rc->cfg_res);
|
||||
pcie_rc->cfg_res.start = LS2088A_PCIE1_PHYS_ADDR +
|
||||
LS2088A_PCIE_PHYS_SIZE * pcie->idx;
|
||||
pcie_rc->cfg_res.end = pcie_rc->cfg_res.start + cfg_size;
|
||||
pcie->ctrl = pcie->lut + 0x40000;
|
||||
}
|
||||
|
||||
pcie_rc->cfg0 = map_physmem(pcie_rc->cfg_res.start,
|
||||
fdt_resource_size(&pcie_rc->cfg_res),
|
||||
MAP_NOCACHE);
|
||||
pcie_rc->cfg1 = pcie_rc->cfg0 +
|
||||
fdt_resource_size(&pcie_rc->cfg_res) / 2;
|
||||
|
||||
pcie->big_endian = fdtdec_get_bool(fdt, node, "big-endian");
|
||||
|
||||
debug("%s dbi:%lx lut:%lx ctrl:0x%lx cfg0:0x%lx, big-endian:%d\n",
|
||||
dev->name, (unsigned long)pcie->dbi, (unsigned long)pcie->lut,
|
||||
(unsigned long)pcie->ctrl, (unsigned long)pcie_rc->cfg0,
|
||||
pcie->big_endian);
|
||||
|
||||
printf("PCIe%u: %s %s", pcie->idx, dev->name, "Root Complex");
|
||||
ls_pcie_setup_ctrl(pcie_rc);
|
||||
|
||||
if (!ls_pcie_link_up(pcie)) {
|
||||
/* Let the user know there's no PCIe link */
|
||||
printf(": no link\n");
|
||||
return 0;
|
||||
}
|
||||
|
||||
/* Print the negotiated PCIe link width */
|
||||
link_sta = readw(pcie->dbi + PCIE_LINK_STA);
|
||||
printf(": x%d gen%d\n", (link_sta & PCIE_LINK_WIDTH_MASK) >> 4,
|
||||
link_sta & PCIE_LINK_SPEED_MASK);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static const struct dm_pci_ops ls_pcie_ops = {
|
||||
.read_config = ls_pcie_read_config,
|
||||
.write_config = ls_pcie_write_config,
|
||||
};
|
||||
|
||||
static const struct udevice_id ls_pcie_ids[] = {
|
||||
{ .compatible = "fsl,ls-pcie" },
|
||||
{ }
|
||||
};
|
||||
|
||||
U_BOOT_DRIVER(pci_layerscape) = {
|
||||
.name = "pci_layerscape",
|
||||
.id = UCLASS_PCI,
|
||||
.of_match = ls_pcie_ids,
|
||||
.ops = &ls_pcie_ops,
|
||||
.probe = ls_pcie_probe,
|
||||
.priv_auto_alloc_size = sizeof(struct ls_pcie_rc),
|
||||
};
|
Loading…
Reference in a new issue