add support for "fsl,mpc8540-pci":
- add flag "ispci" in struct fsl_pcie_data so we can code out differences to existing devices without breaking them
- changes if ispci is set: - in fsl_pcie_addr_valid() check only common checks - fsl_pcie_link_up( returns always 1 - in inbound setup, add flag PIWAR_MEM_2G - set pcie->enabled always to 1
Signed-off-by: Heiko Schocher hs@denx.de ---
drivers/pci/pcie_fsl.c | 27 ++++++++++++++++++++++++++- drivers/pci/pcie_fsl.h | 1 + 2 files changed, 27 insertions(+), 1 deletion(-)
diff --git a/drivers/pci/pcie_fsl.c b/drivers/pci/pcie_fsl.c index 05b2522dac..3c207e761e 100644 --- a/drivers/pci/pcie_fsl.c +++ b/drivers/pci/pcie_fsl.c @@ -23,6 +23,7 @@ static int fsl_pcie_link_up(struct fsl_pcie *pcie); static int fsl_pcie_addr_valid(struct fsl_pcie *pcie, pci_dev_t bdf) { struct udevice *bus = pcie->bus; + struct fsl_pcie_data *info = pcie->info;
if (!pcie->enabled) return -ENXIO; @@ -33,6 +34,9 @@ static int fsl_pcie_addr_valid(struct fsl_pcie *pcie, pci_dev_t bdf) if (PCI_BUS(bdf) == (bus->seq + 1) && (PCI_DEV(bdf) > 0)) return -EINVAL;
+ if (info->ispci) + return 0; + if (PCI_BUS(bdf) > bus->seq && (!fsl_pcie_link_up(pcie) || pcie->mode)) return -EINVAL;
@@ -161,9 +165,13 @@ static int fsl_pcie_hose_write_config_dword(struct fsl_pcie *pcie, uint offset,
static int fsl_pcie_link_up(struct fsl_pcie *pcie) { + struct fsl_pcie_data *info = pcie->info; ccsr_fsl_pci_t *regs = pcie->regs; u16 ltssm;
+ if (info->ispci) + return 1; + if (pcie->block_rev >= PEX_IP_BLK_REV_3_0) { ltssm = (in_be32(®s->pex_csr0) & PEX_CSR0_LTSSM_MASK) >> PEX_CSR0_LTSSM_SHIFT; @@ -251,6 +259,7 @@ static int fsl_pcie_setup_inbound_win(struct fsl_pcie *pcie, int idx, bool pf, u64 phys, u64 bus_addr, pci_size_t size) { + struct fsl_pcie_data *info = pcie->info; ccsr_fsl_pci_t *regs = pcie->regs; pit_t *pi = ®s->pit[idx]; u32 sz = (__ilog2_u64(size) - 1); @@ -275,6 +284,10 @@ static int fsl_pcie_setup_inbound_win(struct fsl_pcie *pcie, int idx, flag |= PIWAR_EN | PIWAR_READ_SNOOP | PIWAR_WRITE_SNOOP; if (pf) flag |= PIWAR_PF; + + if (info->ispci) + flag |= PIWAR_MEM_2G; + out_be32(&pi->piwar, flag | sz);
return 0; @@ -508,6 +521,7 @@ static int fsl_pcie_init_ep(struct fsl_pcie *pcie) static int fsl_pcie_probe(struct udevice *dev) { struct fsl_pcie *pcie = dev_get_priv(dev); + struct fsl_pcie_data *info = pcie->info; ccsr_fsl_pci_t *regs = pcie->regs; u16 val_16;
@@ -515,7 +529,10 @@ static int fsl_pcie_probe(struct udevice *dev) pcie->block_rev = in_be32(®s->block_rev1);
list_add(&pcie->list, &fsl_pcie_list); - pcie->enabled = is_serdes_configured(PCIE1 + pcie->idx); + if (info->ispci) + pcie->enabled = 1; + else + pcie->enabled = is_serdes_configured(PCIE1 + pcie->idx); if (!pcie->enabled) { printf("PCIe%d: %s disabled\n", pcie->idx, dev->name); return 0; @@ -579,6 +596,13 @@ static const struct dm_pci_ops fsl_pcie_ops = { .write_config = fsl_pcie_write_config, };
+static struct fsl_pcie_data mpc85xx_data = { + .block_offset = 0x8000, + .block_offset_mask = 0xffff, + .stride = 0x1000, + .ispci = 1, +}; + static struct fsl_pcie_data p1_p2_data = { .block_offset = 0xa000, .block_offset_mask = 0xffff, @@ -598,6 +622,7 @@ static struct fsl_pcie_data t2080_data = { };
static const struct udevice_id fsl_pcie_ids[] = { + { .compatible = "fsl,mpc8540-pci", .data = (ulong)&mpc85xx_data }, { .compatible = "fsl,pcie-mpc8548", .data = (ulong)&p1_p2_data }, { .compatible = "fsl,pcie-p1_p2", .data = (ulong)&p1_p2_data }, { .compatible = "fsl,pcie-p2041", .data = (ulong)&p2041_data }, diff --git a/drivers/pci/pcie_fsl.h b/drivers/pci/pcie_fsl.h index dc8368d559..ef1b1ac8d4 100644 --- a/drivers/pci/pcie_fsl.h +++ b/drivers/pci/pcie_fsl.h @@ -47,6 +47,7 @@ struct fsl_pcie_data { u32 block_offset; /* Offset from CCSR of 1st controller */ u32 block_offset_mask; /* Mask out the CCSR base */ u32 stride; /* Offset stride between controllers */ + int ispci; /* if PCI only */ };
struct fsl_pcie {