diff options
Diffstat (limited to 'drivers/pci')
| -rw-r--r-- | drivers/pci/Makefile | 1 | ||||
| -rw-r--r-- | drivers/pci/pcie_layerscape.c | 314 | ||||
| -rw-r--r-- | drivers/pci/pcie_layerscape.h | 135 | ||||
| -rw-r--r-- | drivers/pci/pcie_layerscape_fixup.c | 204 |
4 files changed, 343 insertions, 311 deletions
diff --git a/drivers/pci/Makefile b/drivers/pci/Makefile index 86717a4fc3..42174f94e9 100644 --- a/drivers/pci/Makefile +++ b/drivers/pci/Makefile @@ -32,4 +32,5 @@ obj-$(CONFIG_TSI108_PCI) += tsi108_pci.o obj-$(CONFIG_WINBOND_83C553) += w83c553f.o obj-$(CONFIG_PCIE_DW_MVEBU) += pcie_dw_mvebu.o obj-$(CONFIG_PCIE_LAYERSCAPE) += pcie_layerscape.o +obj-$(CONFIG_PCIE_LAYERSCAPE) += pcie_layerscape_fixup.o obj-$(CONFIG_PCI_XILINX) += pcie_xilinx.o diff --git a/drivers/pci/pcie_layerscape.c b/drivers/pci/pcie_layerscape.c index 2e6b986dbc..0e3b4941ab 100644 --- a/drivers/pci/pcie_layerscape.c +++ b/drivers/pci/pcie_layerscape.c @@ -14,129 +14,12 @@ #ifndef CONFIG_LS102XA #include <asm/arch/fdt.h> #include <asm/arch/soc.h> +#else +#include <asm/arch/immap_ls102xa.h> #endif - -#ifndef CONFIG_SYS_PCI_MEMORY_BUS -#define CONFIG_SYS_PCI_MEMORY_BUS CONFIG_SYS_SDRAM_BASE -#endif - -#ifndef CONFIG_SYS_PCI_MEMORY_PHYS -#define CONFIG_SYS_PCI_MEMORY_PHYS CONFIG_SYS_SDRAM_BASE -#endif - -#ifndef CONFIG_SYS_PCI_MEMORY_SIZE -#define CONFIG_SYS_PCI_MEMORY_SIZE (2 * 1024 * 1024 * 1024UL) /* 2G */ -#endif - -#ifndef CONFIG_SYS_PCI_EP_MEMORY_BASE -#define CONFIG_SYS_PCI_EP_MEMORY_BASE CONFIG_SYS_LOAD_ADDR -#endif - -/* iATU registers */ -#define PCIE_ATU_VIEWPORT 0x900 -#define PCIE_ATU_REGION_INBOUND (0x1 << 31) -#define PCIE_ATU_REGION_OUTBOUND (0x0 << 31) -#define PCIE_ATU_REGION_INDEX0 (0x0 << 0) -#define PCIE_ATU_REGION_INDEX1 (0x1 << 0) -#define PCIE_ATU_REGION_INDEX2 (0x2 << 0) -#define PCIE_ATU_REGION_INDEX3 (0x3 << 0) -#define PCIE_ATU_CR1 0x904 -#define PCIE_ATU_TYPE_MEM (0x0 << 0) -#define PCIE_ATU_TYPE_IO (0x2 << 0) -#define PCIE_ATU_TYPE_CFG0 (0x4 << 0) -#define PCIE_ATU_TYPE_CFG1 (0x5 << 0) -#define PCIE_ATU_CR2 0x908 -#define PCIE_ATU_ENABLE (0x1 << 31) -#define PCIE_ATU_BAR_MODE_ENABLE (0x1 << 30) -#define PCIE_ATU_BAR_NUM(bar) ((bar) << 8) -#define PCIE_ATU_LOWER_BASE 0x90C -#define PCIE_ATU_UPPER_BASE 0x910 -#define PCIE_ATU_LIMIT 0x914 -#define PCIE_ATU_LOWER_TARGET 0x918 -#define PCIE_ATU_BUS(x) (((x) & 0xff) << 24) -#define PCIE_ATU_DEV(x) (((x) & 0x1f) << 19) -#define PCIE_ATU_FUNC(x) (((x) & 0x7) << 16) -#define PCIE_ATU_UPPER_TARGET 0x91C - -#define PCIE_DBI_RO_WR_EN 0x8bc - -#define PCIE_LINK_CAP 0x7c -#define PCIE_LINK_SPEED_MASK 0xf -#define PCIE_LINK_STA 0x82 - -#define LTSSM_STATE_MASK 0x3f -#define LTSSM_PCIE_L0 0x11 /* L0 state */ - -#define PCIE_DBI_SIZE 0x100000 /* 1M */ - -#define PCIE_LCTRL0_CFG2_ENABLE (1 << 31) -#define PCIE_LCTRL0_VF(vf) ((vf) << 22) -#define PCIE_LCTRL0_PF(pf) ((pf) << 16) -#define PCIE_LCTRL0_VF_ACTIVE (1 << 21) -#define PCIE_LCTRL0_VAL(pf, vf) (PCIE_LCTRL0_PF(pf) | \ - PCIE_LCTRL0_VF(vf) | \ - ((vf) == 0 ? 0 : PCIE_LCTRL0_VF_ACTIVE) | \ - PCIE_LCTRL0_CFG2_ENABLE) - -#define PCIE_NO_SRIOV_BAR_BASE 0x1000 - -#define PCIE_PF_NUM 2 -#define PCIE_VF_NUM 64 - -#define PCIE_BAR0_SIZE (4 * 1024) /* 4K */ -#define PCIE_BAR1_SIZE (8 * 1024) /* 8K for MSIX */ -#define PCIE_BAR2_SIZE (4 * 1024) /* 4K */ -#define PCIE_BAR4_SIZE (1 * 1024 * 1024) /* 1M */ - -struct ls_pcie { - int idx; - void __iomem *dbi; - void __iomem *va_cfg0; - void __iomem *va_cfg1; - int next_lut_index; - struct pci_controller hose; -}; - -struct ls_pcie_info { - unsigned long regs; - int pci_num; - u64 phys_base; - u64 cfg0_phys; - u64 cfg0_size; - u64 cfg1_phys; - u64 cfg1_size; - u64 mem_bus; - u64 mem_phys; - u64 mem_size; - u64 io_bus; - u64 io_phys; - u64 io_size; -}; - -#define SET_LS_PCIE_INFO(x, num) \ -{ \ - x.regs = CONFIG_SYS_PCIE##num##_ADDR; \ - x.phys_base = CONFIG_SYS_PCIE##num##_PHYS_ADDR; \ - x.cfg0_phys = CONFIG_SYS_PCIE_CFG0_PHYS_OFF + \ - CONFIG_SYS_PCIE##num##_PHYS_ADDR; \ - x.cfg0_size = CONFIG_SYS_PCIE_CFG0_SIZE; \ - x.cfg1_phys = CONFIG_SYS_PCIE_CFG1_PHYS_OFF + \ - CONFIG_SYS_PCIE##num##_PHYS_ADDR; \ - x.cfg1_size = CONFIG_SYS_PCIE_CFG1_SIZE; \ - x.mem_bus = CONFIG_SYS_PCIE_MEM_BUS; \ - x.mem_phys = CONFIG_SYS_PCIE_MEM_PHYS_OFF + \ - CONFIG_SYS_PCIE##num##_PHYS_ADDR; \ - x.mem_size = CONFIG_SYS_PCIE_MEM_SIZE; \ - x.io_bus = CONFIG_SYS_PCIE_IO_BUS; \ - x.io_phys = CONFIG_SYS_PCIE_IO_PHYS_OFF + \ - CONFIG_SYS_PCIE##num##_PHYS_ADDR; \ - x.io_size = CONFIG_SYS_PCIE_IO_SIZE; \ - x.pci_num = num; \ -} +#include "pcie_layerscape.h" #ifdef CONFIG_LS102XA -#include <asm/arch/immap_ls102xa.h> - /* PEX1/2 Misc Ports Status Register */ #define LTSSM_STATE_SHIFT 20 @@ -483,150 +366,6 @@ static void ls_pcie_setup_ep(struct ls_pcie *pcie, struct ls_pcie_info *info) } } -#ifdef CONFIG_FSL_LSCH3 -/* - * Return next available LUT index. - */ -static int ls_pcie_next_lut_index(struct ls_pcie *pcie) -{ - if (pcie->next_lut_index < PCIE_LUT_ENTRY_COUNT) - return pcie->next_lut_index++; - else - return -1; /* LUT is full */ -} - -/* - * Program a single LUT entry - */ -static void ls_pcie_lut_set_mapping(struct ls_pcie *pcie, int index, u32 devid, - u32 streamid) -{ - void __iomem *lut; - - lut = pcie->dbi + PCIE_LUT_BASE; - - /* leave mask as all zeroes, want to match all bits */ - writel((devid << 16), lut + PCIE_LUT_UDR(index)); - writel(streamid | PCIE_LUT_ENABLE, lut + PCIE_LUT_LDR(index)); -} - -/* returns the next available streamid */ -static u32 ls_pcie_next_streamid(void) -{ - static int next_stream_id = FSL_PEX_STREAM_ID_START; - - if (next_stream_id > FSL_PEX_STREAM_ID_END) - return 0xffffffff; - - return next_stream_id++; -} - -/* - * An msi-map is a property to be added to the pci controller - * node. It is a table, where each entry consists of 4 fields - * e.g.: - * - * 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(void *blob, struct ls_pcie *pcie, - u32 devid, u32 streamid) -{ - char pcie_path[19]; - u32 *prop; - u32 phandle; - int nodeoffset; - - /* find pci controller node */ - snprintf(pcie_path, sizeof(pcie_path), "/soc/pcie@%llx", - (u64)pcie->dbi); - nodeoffset = fdt_path_offset(blob, pcie_path); - if (nodeoffset < 0) { - printf("\n%s: ERROR: unable to update PCIe node: %s\n", - __func__, pcie_path); - return; - } - - /* get phandle to MSI controller */ - prop = (u32 *)fdt_getprop(blob, nodeoffset, "msi-parent", 0); - if (prop == NULL) { - printf("\n%s: ERROR: missing msi-parent: %s\n", __func__, - pcie_path); - return; - } - phandle = be32_to_cpu(*prop); - - /* set one msi-map row */ - fdt_appendprop_u32(blob, nodeoffset, "msi-map", devid); - fdt_appendprop_u32(blob, nodeoffset, "msi-map", phandle); - fdt_appendprop_u32(blob, nodeoffset, "msi-map", streamid); - fdt_appendprop_u32(blob, nodeoffset, "msi-map", 1); -} - -static void fdt_fixup_pcie(void *blob) -{ - unsigned int found_multi = 0; - unsigned char header_type; - int index; - u32 streamid; - pci_dev_t dev, bdf; - int bus; - unsigned short id; - struct pci_controller *hose; - struct ls_pcie *pcie; - int i; - - for (i = 0, hose = pci_get_hose_head(); hose; hose = hose->next, i++) { - pcie = hose->priv_data; - for (bus = hose->first_busno; bus <= hose->last_busno; bus++) { - - for (dev = PCI_BDF(bus, 0, 0); - dev < PCI_BDF(bus, PCI_MAX_PCI_DEVICES - 1, - PCI_MAX_PCI_FUNCTIONS - 1); - dev += PCI_BDF(0, 0, 1)) { - - if (PCI_FUNC(dev) && !found_multi) - continue; - - pci_read_config_word(dev, PCI_VENDOR_ID, &id); - - pci_read_config_byte(dev, PCI_HEADER_TYPE, - &header_type); - - if ((id == 0xFFFF) || (id == 0x0000)) - continue; - - if (!PCI_FUNC(dev)) - found_multi = header_type & 0x80; - - streamid = ls_pcie_next_streamid(); - if (streamid == 0xffffffff) { - printf("ERROR: no stream ids free\n"); - continue; - } - - index = ls_pcie_next_lut_index(pcie); - if (index < 0) { - printf("ERROR: no LUT indexes free\n"); - continue; - } - - /* the DT fixup must be relative to the hose first_busno */ - bdf = dev - PCI_BDF(hose->first_busno, 0, 0); - - /* map PCI b.d.f to streamID in LUT */ - ls_pcie_lut_set_mapping(pcie, index, bdf >> 8, - streamid); - - /* update msi-map in device tree */ - fdt_pcie_set_msi_map_entry(blob, pcie, bdf >> 8, - streamid); - } - } - } -} -#endif - int ls_pcie_init_ctrl(int busno, enum srds_prtcl dev, struct ls_pcie_info *info) { struct ls_pcie *pcie; @@ -767,50 +506,3 @@ void pci_init_board(void) { ls_pcie_init_board(0); } - -#ifdef CONFIG_OF_BOARD_SETUP -#include <libfdt.h> -#include <fdt_support.h> - -static void ft_pcie_ls_setup(void *blob, const char *pci_compat, - unsigned long ctrl_addr, enum srds_prtcl dev) -{ - int off; - - off = fdt_node_offset_by_compat_reg(blob, pci_compat, - (phys_addr_t)ctrl_addr); - if (off < 0) - return; - - if (!is_serdes_configured(dev)) - fdt_set_node_status(blob, off, FDT_STATUS_DISABLED, 0); -} - -void ft_pci_setup(void *blob, bd_t *bd) -{ - #ifdef CONFIG_PCIE1 - ft_pcie_ls_setup(blob, FSL_PCIE_COMPAT, CONFIG_SYS_PCIE1_ADDR, PCIE1); - #endif - - #ifdef CONFIG_PCIE2 - ft_pcie_ls_setup(blob, FSL_PCIE_COMPAT, CONFIG_SYS_PCIE2_ADDR, PCIE2); - #endif - - #ifdef CONFIG_PCIE3 - ft_pcie_ls_setup(blob, FSL_PCIE_COMPAT, CONFIG_SYS_PCIE3_ADDR, PCIE3); - #endif - - #ifdef CONFIG_PCIE4 - ft_pcie_ls_setup(blob, FSL_PCIE_COMPAT, CONFIG_SYS_PCIE4_ADDR, PCIE4); - #endif - - #ifdef CONFIG_FSL_LSCH3 - fdt_fixup_pcie(blob); - #endif -} - -#else -void ft_pci_setup(void *blob, bd_t *bd) -{ -} -#endif diff --git a/drivers/pci/pcie_layerscape.h b/drivers/pci/pcie_layerscape.h new file mode 100644 index 0000000000..159e5ce8fd --- /dev/null +++ b/drivers/pci/pcie_layerscape.h @@ -0,0 +1,135 @@ +/* + * Copyright 2014-2015 Freescale Semiconductor, Inc. + * Layerscape PCIe driver + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#ifndef _PCIE_LAYERSCAPE_H_ +#define _PCIE_LAYERSCAPE_H_ +#include <pci.h> + +#ifndef CONFIG_SYS_PCI_MEMORY_BUS +#define CONFIG_SYS_PCI_MEMORY_BUS CONFIG_SYS_SDRAM_BASE +#endif + +#ifndef CONFIG_SYS_PCI_MEMORY_PHYS +#define CONFIG_SYS_PCI_MEMORY_PHYS CONFIG_SYS_SDRAM_BASE +#endif + +#ifndef CONFIG_SYS_PCI_MEMORY_SIZE +#define CONFIG_SYS_PCI_MEMORY_SIZE (2 * 1024 * 1024 * 1024UL) /* 2G */ +#endif + +#ifndef CONFIG_SYS_PCI_EP_MEMORY_BASE +#define CONFIG_SYS_PCI_EP_MEMORY_BASE CONFIG_SYS_LOAD_ADDR +#endif + +/* iATU registers */ +#define PCIE_ATU_VIEWPORT 0x900 +#define PCIE_ATU_REGION_INBOUND (0x1 << 31) +#define PCIE_ATU_REGION_OUTBOUND (0x0 << 31) +#define PCIE_ATU_REGION_INDEX0 (0x0 << 0) +#define PCIE_ATU_REGION_INDEX1 (0x1 << 0) +#define PCIE_ATU_REGION_INDEX2 (0x2 << 0) +#define PCIE_ATU_REGION_INDEX3 (0x3 << 0) +#define PCIE_ATU_REGION_NUM 6 +#define PCIE_ATU_CR1 0x904 +#define PCIE_ATU_TYPE_MEM (0x0 << 0) +#define PCIE_ATU_TYPE_IO (0x2 << 0) +#define PCIE_ATU_TYPE_CFG0 (0x4 << 0) +#define PCIE_ATU_TYPE_CFG1 (0x5 << 0) +#define PCIE_ATU_CR2 0x908 +#define PCIE_ATU_ENABLE (0x1 << 31) +#define PCIE_ATU_BAR_MODE_ENABLE (0x1 << 30) +#define PCIE_ATU_BAR_NUM(bar) ((bar) << 8) +#define PCIE_ATU_LOWER_BASE 0x90C +#define PCIE_ATU_UPPER_BASE 0x910 +#define PCIE_ATU_LIMIT 0x914 +#define PCIE_ATU_LOWER_TARGET 0x918 +#define PCIE_ATU_BUS(x) (((x) & 0xff) << 24) +#define PCIE_ATU_DEV(x) (((x) & 0x1f) << 19) +#define PCIE_ATU_FUNC(x) (((x) & 0x7) << 16) +#define PCIE_ATU_UPPER_TARGET 0x91C + +/* DBI registers */ +#define PCIE_SRIOV 0x178 +#define PCIE_STRFMR1 0x71c /* Symbol Timer & Filter Mask Register1 */ +#define PCIE_DBI_RO_WR_EN 0x8bc + +#define PCIE_LINK_CAP 0x7c +#define PCIE_LINK_SPEED_MASK 0xf +#define PCIE_LINK_WIDTH_MASK 0x3f0 +#define PCIE_LINK_STA 0x82 + +#define LTSSM_STATE_MASK 0x3f +#define LTSSM_PCIE_L0 0x11 /* L0 state */ + +#define PCIE_DBI_SIZE 0x100000 /* 1M */ + +#define PCIE_LCTRL0_CFG2_ENABLE (1 << 31) +#define PCIE_LCTRL0_VF(vf) ((vf) << 22) +#define PCIE_LCTRL0_PF(pf) ((pf) << 16) +#define PCIE_LCTRL0_VF_ACTIVE (1 << 21) +#define PCIE_LCTRL0_VAL(pf, vf) (PCIE_LCTRL0_PF(pf) | \ + PCIE_LCTRL0_VF(vf) | \ + ((vf) == 0 ? 0 : PCIE_LCTRL0_VF_ACTIVE) | \ + PCIE_LCTRL0_CFG2_ENABLE) + +#define PCIE_NO_SRIOV_BAR_BASE 0x1000 + +#define PCIE_PF_NUM 2 +#define PCIE_VF_NUM 64 + +#define PCIE_BAR0_SIZE (4 * 1024) /* 4K */ +#define PCIE_BAR1_SIZE (8 * 1024) /* 8K for MSIX */ +#define PCIE_BAR2_SIZE (4 * 1024) /* 4K */ +#define PCIE_BAR4_SIZE (1 * 1024 * 1024) /* 1M */ + +struct ls_pcie { + int idx; + void __iomem *dbi; + void __iomem *va_cfg0; + void __iomem *va_cfg1; + int next_lut_index; + struct pci_controller hose; +}; + +struct ls_pcie_info { + unsigned long regs; + int pci_num; + u64 phys_base; + u64 cfg0_phys; + u64 cfg0_size; + u64 cfg1_phys; + u64 cfg1_size; + u64 mem_bus; + u64 mem_phys; + u64 mem_size; + u64 io_bus; + u64 io_phys; + u64 io_size; +}; + +#define SET_LS_PCIE_INFO(x, num) \ +{ \ + x.regs = CONFIG_SYS_PCIE##num##_ADDR; \ + x.phys_base = CONFIG_SYS_PCIE##num##_PHYS_ADDR; \ + x.cfg0_phys = CONFIG_SYS_PCIE_CFG0_PHYS_OFF + \ + CONFIG_SYS_PCIE##num##_PHYS_ADDR; \ + x.cfg0_size = CONFIG_SYS_PCIE_CFG0_SIZE; \ + x.cfg1_phys = CONFIG_SYS_PCIE_CFG1_PHYS_OFF + \ + CONFIG_SYS_PCIE##num##_PHYS_ADDR; \ + x.cfg1_size = CONFIG_SYS_PCIE_CFG1_SIZE; \ + x.mem_bus = CONFIG_SYS_PCIE_MEM_BUS; \ + x.mem_phys = CONFIG_SYS_PCIE_MEM_PHYS_OFF + \ + CONFIG_SYS_PCIE##num##_PHYS_ADDR; \ + x.mem_size = CONFIG_SYS_PCIE_MEM_SIZE; \ + x.io_bus = CONFIG_SYS_PCIE_IO_BUS; \ + x.io_phys = CONFIG_SYS_PCIE_IO_PHYS_OFF + \ + CONFIG_SYS_PCIE##num##_PHYS_ADDR; \ + x.io_size = CONFIG_SYS_PCIE_IO_SIZE; \ + x.pci_num = num; \ +} + +#endif /* _PCIE_LAYERSCAPE_H_ */ diff --git a/drivers/pci/pcie_layerscape_fixup.c b/drivers/pci/pcie_layerscape_fixup.c new file mode 100644 index 0000000000..6de9355645 --- /dev/null +++ b/drivers/pci/pcie_layerscape_fixup.c @@ -0,0 +1,204 @@ +/* + * Copyright 2014-2015 Freescale Semiconductor, Inc. + * Layerscape PCIe driver + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <common.h> +#include <pci.h> +#include <asm/arch/fsl_serdes.h> +#include <asm/io.h> +#include <errno.h> +#ifdef CONFIG_OF_BOARD_SETUP +#include <libfdt.h> +#include <fdt_support.h> +#include "pcie_layerscape.h" + +#ifdef CONFIG_FSL_LSCH3 +/* + * Return next available LUT index. + */ +static int ls_pcie_next_lut_index(struct ls_pcie *pcie) +{ + if (pcie->next_lut_index < PCIE_LUT_ENTRY_COUNT) + return pcie->next_lut_index++; + else + return -ENOSPC; /* LUT is full */ +} + +/* returns the next available streamid for pcie, -errno if failed */ +static int ls_pcie_next_streamid(void) +{ + static int next_stream_id = FSL_PEX_STREAM_ID_START; + + if (next_stream_id > FSL_PEX_STREAM_ID_END) + return -EINVAL; + + return next_stream_id++; +} + +/* + * Program a single LUT entry + */ +static void ls_pcie_lut_set_mapping(struct ls_pcie *pcie, int index, u32 devid, + u32 streamid) +{ + void __iomem *lut; + + lut = pcie->dbi + PCIE_LUT_BASE; + + /* leave mask as all zeroes, want to match all bits */ + writel((devid << 16), lut + PCIE_LUT_UDR(index)); + writel(streamid | PCIE_LUT_ENABLE, lut + PCIE_LUT_LDR(index)); +} + +/* + * An msi-map is a property to be added to the pci controller + * node. It is a table, where each entry consists of 4 fields + * e.g.: + * + * 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(void *blob, struct ls_pcie *pcie, + u32 devid, u32 streamid) +{ + char pcie_path[19]; + u32 *prop; + u32 phandle; + int nodeoffset; + + /* find pci controller node */ + snprintf(pcie_path, sizeof(pcie_path), "/soc/pcie@%llx", + (u64)pcie->dbi); + nodeoffset = fdt_path_offset(blob, pcie_path); + if (nodeoffset < 0) { + printf("\n%s: ERROR: unable to update PCIe node: %s\n", + __func__, pcie_path); + return; + } + + /* get phandle to MSI controller */ + prop = (u32 *)fdt_getprop(blob, nodeoffset, "msi-parent", 0); + if (prop == NULL) { + printf("\n%s: ERROR: missing msi-parent: %s\n", __func__, + pcie_path); + return; + } + phandle = fdt32_to_cpu(*prop); + + /* set one msi-map row */ + fdt_appendprop_u32(blob, nodeoffset, "msi-map", devid); + fdt_appendprop_u32(blob, nodeoffset, "msi-map", phandle); + fdt_appendprop_u32(blob, nodeoffset, "msi-map", streamid); + fdt_appendprop_u32(blob, nodeoffset, "msi-map", 1); +} + +static void fdt_fixup_pcie(void *blob) +{ + unsigned int found_multi = 0; + unsigned char header_type; + int index; + u32 streamid; + pci_dev_t dev, bdf; + int bus; + unsigned short id; + struct pci_controller *hose; + struct ls_pcie *pcie; + int i; + + for (i = 0, hose = pci_get_hose_head(); hose; hose = hose->next, i++) { + pcie = hose->priv_data; + for (bus = hose->first_busno; bus <= hose->last_busno; bus++) { + + for (dev = PCI_BDF(bus, 0, 0); + dev < PCI_BDF(bus, PCI_MAX_PCI_DEVICES - 1, + PCI_MAX_PCI_FUNCTIONS - 1); + dev += PCI_BDF(0, 0, 1)) { + + if (PCI_FUNC(dev) && !found_multi) + continue; + + pci_read_config_word(dev, PCI_VENDOR_ID, &id); + + pci_read_config_byte(dev, PCI_HEADER_TYPE, + &header_type); + + if ((id == 0xFFFF) || (id == 0x0000)) + continue; + + if (!PCI_FUNC(dev)) + found_multi = header_type & 0x80; + + streamid = ls_pcie_next_streamid(); + if (streamid < 0) { + debug("ERROR: no stream ids free\n"); + continue; + } + + index = ls_pcie_next_lut_index(pcie); + if (index < 0) { + debug("ERROR: no LUT indexes free\n"); + continue; + } + + /* the DT fixup must be relative to the hose first_busno */ + bdf = dev - PCI_BDF(hose->first_busno, 0, 0); + + /* map PCI b.d.f to streamID in LUT */ + ls_pcie_lut_set_mapping(pcie, index, bdf >> 8, + streamid); + + /* update msi-map in device tree */ + fdt_pcie_set_msi_map_entry(blob, pcie, bdf >> 8, + streamid); + } + } + } +} +#endif + +static void ft_pcie_ls_setup(void *blob, const char *pci_compat, + unsigned long ctrl_addr, enum srds_prtcl dev) +{ + int off; + + off = fdt_node_offset_by_compat_reg(blob, pci_compat, + (phys_addr_t)ctrl_addr); + if (off < 0) + return; + + if (!is_serdes_configured(dev)) + fdt_set_node_status(blob, off, FDT_STATUS_DISABLED, 0); +} + +/* Fixup Kernel DT for PCIe */ +void ft_pci_setup(void *blob, bd_t *bd) +{ +#ifdef CONFIG_PCIE1 + ft_pcie_ls_setup(blob, FSL_PCIE_COMPAT, CONFIG_SYS_PCIE1_ADDR, PCIE1); +#endif + +#ifdef CONFIG_PCIE2 + ft_pcie_ls_setup(blob, FSL_PCIE_COMPAT, CONFIG_SYS_PCIE2_ADDR, PCIE2); +#endif + +#ifdef CONFIG_PCIE3 + ft_pcie_ls_setup(blob, FSL_PCIE_COMPAT, CONFIG_SYS_PCIE3_ADDR, PCIE3); +#endif + +#ifdef CONFIG_PCIE4 + ft_pcie_ls_setup(blob, FSL_PCIE_COMPAT, CONFIG_SYS_PCIE4_ADDR, PCIE4); +#endif + +#ifdef CONFIG_FSL_LSCH3 + fdt_fixup_pcie(blob); +#endif +} + +#else /* !CONFIG_OF_BOARD_SETUP */ +void ft_pci_setup(void *blob, bd_t *bd) +{ +} +#endif |