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-rw-r--r--drivers/pci/pcie_layerscape.c497
-rw-r--r--drivers/pci/pcie_layerscape.h53
-rw-r--r--drivers/pci/pcie_layerscape_fixup.c167
3 files changed, 1 insertions, 716 deletions
diff --git a/drivers/pci/pcie_layerscape.c b/drivers/pci/pcie_layerscape.c
index 62a0316..90b9fe2 100644
--- a/drivers/pci/pcie_layerscape.c
+++ b/drivers/pci/pcie_layerscape.c
@@ -12,506 +12,10 @@
#include <errno.h>
#include <malloc.h>
#include <dm.h>
-#ifndef CONFIG_LS102XA
-#include <asm/arch/fdt.h>
-#include <asm/arch/soc.h>
-#else
-#include <asm/arch/immap_ls102xa.h>
-#endif
#include "pcie_layerscape.h"
DECLARE_GLOBAL_DATA_PTR;
-#ifndef CONFIG_DM_PCI
-#ifdef CONFIG_LS102XA
-/* PEX1/2 Misc Ports Status Register */
-#define LTSSM_STATE_SHIFT 20
-
-static int ls_pcie_link_state(struct ls_pcie *pcie)
-{
- u32 state;
- struct ccsr_scfg *scfg = (struct ccsr_scfg *)CONFIG_SYS_FSL_SCFG_ADDR;
-
- state = in_be32(&scfg->pexmscportsr[pcie->idx]);
- state = (state >> LTSSM_STATE_SHIFT) & LTSSM_STATE_MASK;
- if (state < LTSSM_PCIE_L0) {
- debug("....PCIe link error. LTSSM=0x%02x.\n", state);
- return 0;
- }
-
- return 1;
-}
-#else
-static int ls_pcie_link_state(struct ls_pcie *pcie)
-{
- u32 state;
-
- state = pex_lut_in32(pcie->dbi + PCIE_LUT_BASE + PCIE_LUT_DBG) &
- LTSSM_STATE_MASK;
- if (state < LTSSM_PCIE_L0) {
- debug("....PCIe link error. LTSSM=0x%02x.\n", state);
- return 0;
- }
-
- return 1;
-}
-#endif
-
-static int ls_pcie_link_up(struct ls_pcie *pcie)
-{
- int state;
- u32 cap;
-
- state = ls_pcie_link_state(pcie);
- if (state)
- return state;
-
- /* Try to download speed to gen1 */
- cap = readl(pcie->dbi + PCIE_LINK_CAP);
- writel((cap & (~PCIE_LINK_SPEED_MASK)) | 1, pcie->dbi + PCIE_LINK_CAP);
- /*
- * Notice: the following delay has critical impact on link training
- * if too short (<30ms) the link doesn't get up.
- */
- mdelay(100);
- state = ls_pcie_link_state(pcie);
- if (state)
- return state;
-
- writel(cap, pcie->dbi + PCIE_LINK_CAP);
-
- return 0;
-}
-
-static void ls_pcie_cfg0_set_busdev(struct ls_pcie *pcie, u32 busdev)
-{
- writel(PCIE_ATU_REGION_OUTBOUND | PCIE_ATU_REGION_INDEX0,
- pcie->dbi + PCIE_ATU_VIEWPORT);
- writel(busdev, pcie->dbi + PCIE_ATU_LOWER_TARGET);
-}
-
-static void ls_pcie_cfg1_set_busdev(struct ls_pcie *pcie, u32 busdev)
-{
- writel(PCIE_ATU_REGION_OUTBOUND | PCIE_ATU_REGION_INDEX1,
- pcie->dbi + PCIE_ATU_VIEWPORT);
- writel(busdev, pcie->dbi + PCIE_ATU_LOWER_TARGET);
-}
-
-static void ls_pcie_iatu_outbound_set(struct ls_pcie *pcie, int idx, int type,
- u64 phys, u64 bus_addr, pci_size_t size)
-{
- writel(PCIE_ATU_REGION_OUTBOUND | idx, pcie->dbi + PCIE_ATU_VIEWPORT);
- writel((u32)phys, pcie->dbi + PCIE_ATU_LOWER_BASE);
- writel(phys >> 32, pcie->dbi + PCIE_ATU_UPPER_BASE);
- writel(phys + size - 1, pcie->dbi + PCIE_ATU_LIMIT);
- writel((u32)bus_addr, pcie->dbi + PCIE_ATU_LOWER_TARGET);
- writel(bus_addr >> 32, pcie->dbi + PCIE_ATU_UPPER_TARGET);
- writel(type, pcie->dbi + PCIE_ATU_CR1);
- writel(PCIE_ATU_ENABLE, pcie->dbi + PCIE_ATU_CR2);
-}
-
-/* Use bar match mode and MEM type as default */
-static void ls_pcie_iatu_inbound_set(struct ls_pcie *pcie, int idx,
- int bar, u64 phys)
-{
- writel(PCIE_ATU_REGION_INBOUND | idx, pcie->dbi + PCIE_ATU_VIEWPORT);
- writel((u32)phys, pcie->dbi + PCIE_ATU_LOWER_TARGET);
- writel(phys >> 32, pcie->dbi + PCIE_ATU_UPPER_TARGET);
- writel(PCIE_ATU_TYPE_MEM, pcie->dbi + PCIE_ATU_CR1);
- writel(PCIE_ATU_ENABLE | PCIE_ATU_BAR_MODE_ENABLE |
- PCIE_ATU_BAR_NUM(bar), pcie->dbi + PCIE_ATU_CR2);
-}
-
-static void ls_pcie_setup_atu(struct ls_pcie *pcie, struct ls_pcie_info *info)
-{
-#ifdef DEBUG
- int i;
-#endif
-
- /* ATU 0 : OUTBOUND : CFG0 */
- ls_pcie_iatu_outbound_set(pcie, PCIE_ATU_REGION_INDEX0,
- PCIE_ATU_TYPE_CFG0,
- info->cfg0_phys,
- 0,
- info->cfg0_size);
- /* ATU 1 : OUTBOUND : CFG1 */
- ls_pcie_iatu_outbound_set(pcie, PCIE_ATU_REGION_INDEX1,
- PCIE_ATU_TYPE_CFG1,
- info->cfg1_phys,
- 0,
- info->cfg1_size);
- /* ATU 2 : OUTBOUND : MEM */
- ls_pcie_iatu_outbound_set(pcie, PCIE_ATU_REGION_INDEX2,
- PCIE_ATU_TYPE_MEM,
- info->mem_phys,
- info->mem_bus,
- info->mem_size);
- /* ATU 3 : OUTBOUND : IO */
- ls_pcie_iatu_outbound_set(pcie, PCIE_ATU_REGION_INDEX3,
- PCIE_ATU_TYPE_IO,
- info->io_phys,
- info->io_bus,
- info->io_size);
-
-#ifdef DEBUG
- for (i = 0; i <= PCIE_ATU_REGION_INDEX3; i++) {
- writel(PCIE_ATU_REGION_OUTBOUND | i,
- pcie->dbi + PCIE_ATU_VIEWPORT);
- debug("iATU%d:\n", i);
- debug("\tLOWER PHYS 0x%08x\n",
- readl(pcie->dbi + PCIE_ATU_LOWER_BASE));
- debug("\tUPPER PHYS 0x%08x\n",
- readl(pcie->dbi + PCIE_ATU_UPPER_BASE));
- debug("\tLOWER BUS 0x%08x\n",
- readl(pcie->dbi + PCIE_ATU_LOWER_TARGET));
- debug("\tUPPER BUS 0x%08x\n",
- readl(pcie->dbi + PCIE_ATU_UPPER_TARGET));
- debug("\tLIMIT 0x%08x\n",
- readl(pcie->dbi + PCIE_ATU_LIMIT));
- debug("\tCR1 0x%08x\n",
- readl(pcie->dbi + PCIE_ATU_CR1));
- debug("\tCR2 0x%08x\n",
- readl(pcie->dbi + PCIE_ATU_CR2));
- }
-#endif
-}
-
-int pci_skip_dev(struct pci_controller *hose, pci_dev_t dev)
-{
- /* Do not skip controller */
- return 0;
-}
-
-static int ls_pcie_addr_valid(struct pci_controller *hose, pci_dev_t d)
-{
- if (PCI_DEV(d) > 0)
- return -EINVAL;
-
- /* Controller does not support multi-function in RC mode */
- if ((PCI_BUS(d) == hose->first_busno) && (PCI_FUNC(d) > 0))
- return -EINVAL;
-
- return 0;
-}
-
-static int ls_pcie_read_config(struct pci_controller *hose, pci_dev_t d,
- int where, u32 *val)
-{
- struct ls_pcie *pcie = hose->priv_data;
- u32 busdev, *addr;
-
- if (ls_pcie_addr_valid(hose, d)) {
- *val = 0xffffffff;
- return 0;
- }
-
- if (PCI_BUS(d) == hose->first_busno) {
- addr = pcie->dbi + (where & ~0x3);
- } else {
- busdev = PCIE_ATU_BUS(PCI_BUS(d)) |
- PCIE_ATU_DEV(PCI_DEV(d)) |
- PCIE_ATU_FUNC(PCI_FUNC(d));
-
- if (PCI_BUS(d) == hose->first_busno + 1) {
- ls_pcie_cfg0_set_busdev(pcie, busdev);
- addr = pcie->va_cfg0 + (where & ~0x3);
- } else {
- ls_pcie_cfg1_set_busdev(pcie, busdev);
- addr = pcie->va_cfg1 + (where & ~0x3);
- }
- }
-
- *val = readl(addr);
-
- return 0;
-}
-
-static int ls_pcie_write_config(struct pci_controller *hose, pci_dev_t d,
- int where, u32 val)
-{
- struct ls_pcie *pcie = hose->priv_data;
- u32 busdev, *addr;
-
- if (ls_pcie_addr_valid(hose, d))
- return -EINVAL;
-
- if (PCI_BUS(d) == hose->first_busno) {
- addr = pcie->dbi + (where & ~0x3);
- } else {
- busdev = PCIE_ATU_BUS(PCI_BUS(d)) |
- PCIE_ATU_DEV(PCI_DEV(d)) |
- PCIE_ATU_FUNC(PCI_FUNC(d));
-
- if (PCI_BUS(d) == hose->first_busno + 1) {
- ls_pcie_cfg0_set_busdev(pcie, busdev);
- addr = pcie->va_cfg0 + (where & ~0x3);
- } else {
- ls_pcie_cfg1_set_busdev(pcie, busdev);
- addr = pcie->va_cfg1 + (where & ~0x3);
- }
- }
-
- writel(val, addr);
-
- return 0;
-}
-
-static void ls_pcie_setup_ctrl(struct ls_pcie *pcie,
- struct ls_pcie_info *info)
-{
- struct pci_controller *hose = &pcie->hose;
- pci_dev_t dev = PCI_BDF(hose->first_busno, 0, 0);
-
- ls_pcie_setup_atu(pcie, info);
-
- pci_hose_write_config_dword(hose, dev, PCI_BASE_ADDRESS_0, 0);
-
- /* program correct class for RC */
- writel(1, pcie->dbi + PCIE_DBI_RO_WR_EN);
- pci_hose_write_config_word(hose, dev, PCI_CLASS_DEVICE,
- PCI_CLASS_BRIDGE_PCI);
-#ifndef CONFIG_LS102XA
- writel(0, pcie->dbi + PCIE_DBI_RO_WR_EN);
-#endif
-}
-
-static void ls_pcie_ep_setup_atu(struct ls_pcie *pcie,
- struct ls_pcie_info *info)
-{
- u64 phys = CONFIG_SYS_PCI_EP_MEMORY_BASE;
-
- /* ATU 0 : INBOUND : map BAR0 */
- ls_pcie_iatu_inbound_set(pcie, PCIE_ATU_REGION_INDEX0, 0, phys);
- /* ATU 1 : INBOUND : map BAR1 */
- phys += PCIE_BAR1_SIZE;
- ls_pcie_iatu_inbound_set(pcie, PCIE_ATU_REGION_INDEX1, 1, phys);
- /* ATU 2 : INBOUND : map BAR2 */
- phys += PCIE_BAR2_SIZE;
- ls_pcie_iatu_inbound_set(pcie, PCIE_ATU_REGION_INDEX2, 2, phys);
- /* ATU 3 : INBOUND : map BAR4 */
- phys = CONFIG_SYS_PCI_EP_MEMORY_BASE + PCIE_BAR4_SIZE;
- ls_pcie_iatu_inbound_set(pcie, PCIE_ATU_REGION_INDEX3, 4, phys);
-
- /* ATU 0 : OUTBOUND : map 4G MEM */
- ls_pcie_iatu_outbound_set(pcie, PCIE_ATU_REGION_INDEX0,
- PCIE_ATU_TYPE_MEM,
- info->phys_base,
- 0,
- 4 * 1024 * 1024 * 1024ULL);
-}
-
-/* BAR0 and BAR1 are 32bit BAR2 and BAR4 are 64bit */
-static void ls_pcie_ep_setup_bar(void *bar_base, int bar, u32 size)
-{
- 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 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_setup_ep(struct ls_pcie *pcie, struct ls_pcie_info *info)
-{
- struct pci_controller *hose = &pcie->hose;
- pci_dev_t dev = PCI_BDF(hose->first_busno, 0, 0);
- int sriov;
-
- sriov = pci_hose_find_ext_capability(hose, dev, PCI_EXT_CAP_ID_SRIOV);
- if (sriov) {
- int pf, vf;
-
- for (pf = 0; pf < PCIE_PF_NUM; pf++) {
- for (vf = 0; vf <= PCIE_VF_NUM; vf++) {
-#ifndef CONFIG_LS102XA
- writel(PCIE_LCTRL0_VAL(pf, vf),
- pcie->dbi + PCIE_LUT_BASE +
- PCIE_LUT_LCTRL0);
-#endif
- ls_pcie_ep_setup_bars(pcie->dbi);
- ls_pcie_ep_setup_atu(pcie, info);
- }
- }
-
- /* Disable CFG2 */
-#ifndef CONFIG_LS102XA
- writel(0, pcie->dbi + PCIE_LUT_BASE + PCIE_LUT_LCTRL0);
-#endif
- } else {
- ls_pcie_ep_setup_bars(pcie->dbi + PCIE_NO_SRIOV_BAR_BASE);
- ls_pcie_ep_setup_atu(pcie, info);
- }
-}
-
-int ls_pcie_init_ctrl(int busno, enum srds_prtcl dev, struct ls_pcie_info *info)
-{
- struct ls_pcie *pcie;
- struct pci_controller *hose;
- int num = dev - PCIE1;
- pci_dev_t pdev = PCI_BDF(busno, 0, 0);
- int i, linkup, ep_mode;
- u8 header_type;
- u16 temp16;
-
- if (!is_serdes_configured(dev)) {
- printf("PCIe%d: disabled\n", num + 1);
- return busno;
- }
-
- pcie = malloc(sizeof(*pcie));
- if (!pcie)
- return busno;
- memset(pcie, 0, sizeof(*pcie));
-
- hose = &pcie->hose;
- hose->priv_data = pcie;
- hose->first_busno = busno;
- pcie->idx = num;
- pcie->dbi = map_physmem(info->regs, PCIE_DBI_SIZE, MAP_NOCACHE);
- pcie->va_cfg0 = map_physmem(info->cfg0_phys,
- info->cfg0_size,
- MAP_NOCACHE);
- pcie->va_cfg1 = map_physmem(info->cfg1_phys,
- info->cfg1_size,
- MAP_NOCACHE);
- pcie->next_lut_index = 0;
-
- /* outbound memory */
- pci_set_region(&hose->regions[0],
- (pci_size_t)info->mem_bus,
- (phys_size_t)info->mem_phys,
- (pci_size_t)info->mem_size,
- PCI_REGION_MEM);
-
- /* outbound io */
- pci_set_region(&hose->regions[1],
- (pci_size_t)info->io_bus,
- (phys_size_t)info->io_phys,
- (pci_size_t)info->io_size,
- PCI_REGION_IO);
-
- /* System memory space */
- pci_set_region(&hose->regions[2],
- CONFIG_SYS_PCI_MEMORY_BUS,
- CONFIG_SYS_PCI_MEMORY_PHYS,
- CONFIG_SYS_PCI_MEMORY_SIZE,
- PCI_REGION_SYS_MEMORY);
-
- hose->region_count = 3;
-
- for (i = 0; i < hose->region_count; i++)
- debug("PCI reg:%d %016llx:%016llx %016llx %08lx\n",
- i,
- (u64)hose->regions[i].phys_start,
- (u64)hose->regions[i].bus_start,
- (u64)hose->regions[i].size,
- hose->regions[i].flags);
-
- pci_set_ops(hose,
- pci_hose_read_config_byte_via_dword,
- pci_hose_read_config_word_via_dword,
- ls_pcie_read_config,
- pci_hose_write_config_byte_via_dword,
- pci_hose_write_config_word_via_dword,
- ls_pcie_write_config);
-
- pci_hose_read_config_byte(hose, pdev, PCI_HEADER_TYPE, &header_type);
- ep_mode = (header_type & 0x7f) == PCI_HEADER_TYPE_NORMAL;
- printf("PCIe%u: %s ", info->pci_num,
- ep_mode ? "Endpoint" : "Root Complex");
-
- if (ep_mode)
- ls_pcie_setup_ep(pcie, info);
- else
- ls_pcie_setup_ctrl(pcie, info);
-
- linkup = ls_pcie_link_up(pcie);
-
- if (!linkup) {
- /* Let the user know there's no PCIe link */
- printf("no link, regs @ 0x%lx\n", info->regs);
- hose->last_busno = hose->first_busno;
- return busno;
- }
-
- /* Print the negotiated PCIe link width */
- pci_hose_read_config_word(hose, pdev, PCIE_LINK_STA, &temp16);
- printf("x%d gen%d, regs @ 0x%lx\n", (temp16 & 0x3f0) >> 4,
- (temp16 & 0xf), info->regs);
-
- if (ep_mode)
- return busno;
-
- pci_register_hose(hose);
-
- hose->last_busno = pci_hose_scan(hose);
-
- printf("PCIe%x: Bus %02x - %02x\n",
- info->pci_num, hose->first_busno, hose->last_busno);
-
- return hose->last_busno + 1;
-}
-
-int ls_pcie_init_board(int busno)
-{
- struct ls_pcie_info info;
-
-#ifdef CONFIG_PCIE1
- SET_LS_PCIE_INFO(info, 1);
- busno = ls_pcie_init_ctrl(busno, PCIE1, &info);
-#endif
-
-#ifdef CONFIG_PCIE2
- SET_LS_PCIE_INFO(info, 2);
- busno = ls_pcie_init_ctrl(busno, PCIE2, &info);
-#endif
-
-#ifdef CONFIG_PCIE3
- SET_LS_PCIE_INFO(info, 3);
- busno = ls_pcie_init_ctrl(busno, PCIE3, &info);
-#endif
-
-#ifdef CONFIG_PCIE4
- SET_LS_PCIE_INFO(info, 4);
- busno = ls_pcie_init_ctrl(busno, PCIE4, &info);
-#endif
-
- return busno;
-}
-
-void pci_init_board(void)
-{
- ls_pcie_init_board(0);
-}
-
-#else
LIST_HEAD(ls_pcie_list);
static unsigned int dbi_readl(struct ls_pcie *pcie, unsigned int offset)
@@ -1045,4 +549,3 @@ U_BOOT_DRIVER(pci_layerscape) = {
.probe = ls_pcie_probe,
.priv_auto_alloc_size = sizeof(struct ls_pcie),
};
-#endif /* CONFIG_DM_PCI */
diff --git a/drivers/pci/pcie_layerscape.h b/drivers/pci/pcie_layerscape.h
index 5e893d4..1e635ef 100644
--- a/drivers/pci/pcie_layerscape.h
+++ b/drivers/pci/pcie_layerscape.h
@@ -8,6 +8,7 @@
#ifndef _PCIE_LAYERSCAPE_H_
#define _PCIE_LAYERSCAPE_H_
#include <pci.h>
+#include <dm.h>
#ifndef CONFIG_SYS_PCI_MEMORY_BUS
#define CONFIG_SYS_PCI_MEMORY_BUS CONFIG_SYS_SDRAM_BASE
@@ -86,57 +87,6 @@
#define PCIE_BAR2_SIZE (4 * 1024) /* 4K */
#define PCIE_BAR4_SIZE (1 * 1024 * 1024) /* 1M */
-#ifndef CONFIG_DM_PCI
-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; \
-}
-
-#else /* CONFIG_DM_PCI */
-
-#include <dm.h>
-
/* LUT registers */
#define PCIE_LUT_UDR(n) (0x800 + (n) * 8)
#define PCIE_LUT_LDR(n) (0x804 + (n) * 8)
@@ -187,5 +137,4 @@ struct ls_pcie {
extern struct list_head ls_pcie_list;
-#endif /* CONFIG_DM_PCI */
#endif /* _PCIE_LAYERSCAPE_H_ */
diff --git a/drivers/pci/pcie_layerscape_fixup.c b/drivers/pci/pcie_layerscape_fixup.c
index c30a330..47e621f 100644
--- a/drivers/pci/pcie_layerscape_fixup.c
+++ b/drivers/pci/pcie_layerscape_fixup.c
@@ -37,173 +37,7 @@ static int ls_pcie_next_streamid(void)
return next_stream_id++;
}
-#endif
-
-#ifndef CONFIG_DM_PCI
-
-#ifdef CONFIG_FSL_LSCH3
-/*
- * 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_DM_PCI */
-
-#ifdef CONFIG_FSL_LSCH3
static void lut_writel(struct ls_pcie *pcie, unsigned int value,
unsigned int offset)
{
@@ -345,7 +179,6 @@ void ft_pci_setup(void *blob, bd_t *bd)
fdt_fixup_pcie(blob);
#endif
}
-#endif /* CONFIG_DM_PCI */
#else /* !CONFIG_OF_BOARD_SETUP */
void ft_pci_setup(void *blob, bd_t *bd)
generated by cgit v0.10.2 at 2024-11-19 17:59:46 (GMT)