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authorTom Rini <trini@konsulko.com>2019-08-29 14:26:13 +0300
committerTom Rini <trini@konsulko.com>2019-08-29 14:26:13 +0300
commit25f32e0dffb17292dc17cd0f6694dd5e91c405a2 (patch)
tree72f737787a843f1609168e7120cea424ac937b2c /drivers
parent80505e59df9bddc9037bd2145b0fff38f4a0d95e (diff)
parent43e881e38b505835dd3d20ab35b5845bc20a1aae (diff)
downloadu-boot-25f32e0dffb17292dc17cd0f6694dd5e91c405a2.tar.xz
Merge https://gitlab.denx.de/u-boot/custodians/u-boot-mpc85xx
Enable DM PCI for T2080RDB, T4240RDB, T1024RDB, T1042D4RDB, P1020RDB, P2020RDB, P2041RDB, P3041DS, P4080DS, and MPC8548CDS
Diffstat (limited to 'drivers')
-rw-r--r--drivers/pci/pcie_fsl.c121
-rw-r--r--drivers/pci/pcie_fsl.h10
2 files changed, 92 insertions, 39 deletions
diff --git a/drivers/pci/pcie_fsl.c b/drivers/pci/pcie_fsl.c
index 4d61a46cef..ab25aeee73 100644
--- a/drivers/pci/pcie_fsl.c
+++ b/drivers/pci/pcie_fsl.c
@@ -299,8 +299,9 @@ static int fsl_pcie_setup_inbound_win(struct fsl_pcie *pcie, int idx,
out_be32(&pi->piwbear, 0);
#endif
- if (IS_ENABLED(CONFIG_SYS_FSL_ERRATUM_A005434))
- flag = 0;
+#ifdef CONFIG_SYS_FSL_ERRATUM_A005434
+ flag = 0;
+#endif
flag |= PIWAR_EN | PIWAR_READ_SNOOP | PIWAR_WRITE_SNOOP;
if (pf)
@@ -401,47 +402,47 @@ static int fsl_pcie_init_port(struct fsl_pcie *pcie)
fsl_pcie_init_atmu(pcie);
- if (IS_ENABLED(CONFIG_FSL_PCIE_DISABLE_ASPM)) {
- val_32 = 0;
- fsl_pcie_hose_read_config_dword(pcie, PCI_LCR, &val_32);
- val_32 &= ~0x03;
- fsl_pcie_hose_write_config_dword(pcie, PCI_LCR, val_32);
- udelay(1);
- }
+#ifdef CONFIG_FSL_PCIE_DISABLE_ASPM
+ val_32 = 0;
+ fsl_pcie_hose_read_config_dword(pcie, PCI_LCR, &val_32);
+ val_32 &= ~0x03;
+ fsl_pcie_hose_write_config_dword(pcie, PCI_LCR, val_32);
+ udelay(1);
+#endif
- if (IS_ENABLED(CONFIG_FSL_PCIE_RESET)) {
- u16 ltssm;
- int i;
+#ifdef CONFIG_FSL_PCIE_RESET
+ u16 ltssm;
+ int i;
- if (pcie->block_rev >= PEX_IP_BLK_REV_3_0) {
+ if (pcie->block_rev >= PEX_IP_BLK_REV_3_0) {
+ /* assert PCIe reset */
+ setbits_be32(&regs->pdb_stat, 0x08000000);
+ (void)in_be32(&regs->pdb_stat);
+ udelay(1000);
+ /* clear PCIe reset */
+ clrbits_be32(&regs->pdb_stat, 0x08000000);
+ asm("sync;isync");
+ for (i = 0; i < 100 && !fsl_pcie_link_up(pcie); i++)
+ udelay(1000);
+ } else {
+ fsl_pcie_hose_read_config_word(pcie, PCI_LTSSM, &ltssm);
+ if (ltssm == 1) {
/* assert PCIe reset */
setbits_be32(&regs->pdb_stat, 0x08000000);
(void)in_be32(&regs->pdb_stat);
- udelay(1000);
+ udelay(100);
/* clear PCIe reset */
clrbits_be32(&regs->pdb_stat, 0x08000000);
asm("sync;isync");
- for (i = 0; i < 100 && !fsl_pcie_link_up(pcie); i++)
+ for (i = 0; i < 100 &&
+ !fsl_pcie_link_up(pcie); i++)
udelay(1000);
- } else {
- fsl_pcie_hose_read_config_word(pcie, PCI_LTSSM, &ltssm);
- if (ltssm == 1) {
- /* assert PCIe reset */
- setbits_be32(&regs->pdb_stat, 0x08000000);
- (void)in_be32(&regs->pdb_stat);
- udelay(100);
- /* clear PCIe reset */
- clrbits_be32(&regs->pdb_stat, 0x08000000);
- asm("sync;isync");
- for (i = 0; i < 100 &&
- !fsl_pcie_link_up(pcie); i++)
- udelay(1000);
- }
}
}
+#endif
- if (IS_ENABLED(CONFIG_SYS_P4080_ERRATUM_PCIE_A003) &&
- !fsl_pcie_link_up(pcie)) {
+#ifdef CONFIG_SYS_P4080_ERRATUM_PCIE_A003
+ if (!fsl_pcie_link_up(pcie)) {
serdes_corenet_t *srds_regs;
srds_regs = (void *)CONFIG_SYS_FSL_CORENET_SERDES_ADDR;
@@ -460,13 +461,15 @@ static int fsl_pcie_init_port(struct fsl_pcie *pcie)
udelay(1000);
}
}
+#endif
/*
* The Read-Only Write Enable bit defaults to 1 instead of 0.
* Set to 0 to protect the read-only registers.
*/
- if (IS_ENABLED(CONFIG_SYS_FSL_ERRATUM_A007815))
- clrbits_be32(&regs->dbi_ro_wr_en, 0x01);
+#ifdef CONFIG_SYS_FSL_ERRATUM_A007815
+ clrbits_be32(&regs->dbi_ro_wr_en, 0x01);
+#endif
/*
* Enable All Error Interrupts except
@@ -500,14 +503,23 @@ static int fsl_pcie_init_port(struct fsl_pcie *pcie)
static int fsl_pcie_fixup_classcode(struct fsl_pcie *pcie)
{
ccsr_fsl_pci_t *regs = pcie->regs;
+ u32 classcode_reg;
u32 val;
- setbits_be32(&regs->dbi_ro_wr_en, 0x01);
- fsl_pcie_hose_read_config_dword(pcie, PCI_CLASS_REVISION, &val);
+ if (pcie->block_rev >= PEX_IP_BLK_REV_3_0) {
+ classcode_reg = PCI_CLASS_REVISION;
+ setbits_be32(&regs->dbi_ro_wr_en, 0x01);
+ } else {
+ classcode_reg = CSR_CLASSCODE;
+ }
+
+ fsl_pcie_hose_read_config_dword(pcie, classcode_reg, &val);
val &= 0xff;
val |= PCI_CLASS_BRIDGE_PCI << 16;
- fsl_pcie_hose_write_config_dword(pcie, PCI_CLASS_REVISION, val);
- clrbits_be32(&regs->dbi_ro_wr_en, 0x01);
+ fsl_pcie_hose_write_config_dword(pcie, classcode_reg, val);
+
+ if (pcie->block_rev >= PEX_IP_BLK_REV_3_0)
+ clrbits_be32(&regs->dbi_ro_wr_en, 0x01);
return 0;
}
@@ -570,6 +582,7 @@ static int fsl_pcie_probe(struct udevice *dev)
static int fsl_pcie_ofdata_to_platdata(struct udevice *dev)
{
struct fsl_pcie *pcie = dev_get_priv(dev);
+ struct fsl_pcie_data *info;
int ret;
pcie->regs = dev_remap_addr(dev);
@@ -584,7 +597,10 @@ static int fsl_pcie_ofdata_to_platdata(struct udevice *dev)
return ret;
}
- pcie->idx = (dev_read_addr(dev) - 0xffe240000) / 0x10000;
+ info = (struct fsl_pcie_data *)dev_get_driver_data(dev);
+ pcie->info = info;
+ pcie->idx = abs((u32)(dev_read_addr(dev) & info->block_offset_mask) -
+ info->block_offset) / info->stride;
return 0;
}
@@ -594,8 +610,35 @@ static const struct dm_pci_ops fsl_pcie_ops = {
.write_config = fsl_pcie_write_config,
};
+static struct fsl_pcie_data p1_p2_data = {
+ .block_offset = 0xa000,
+ .block_offset_mask = 0xffff,
+ .stride = 0x1000,
+};
+
+static struct fsl_pcie_data p2041_data = {
+ .block_offset = 0x200000,
+ .block_offset_mask = 0x3fffff,
+ .stride = 0x1000,
+};
+
+static struct fsl_pcie_data t2080_data = {
+ .block_offset = 0x240000,
+ .block_offset_mask = 0x3fffff,
+ .stride = 0x10000,
+};
+
static const struct udevice_id fsl_pcie_ids[] = {
- { .compatible = "fsl,pcie-t2080" },
+ { .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 },
+ { .compatible = "fsl,pcie-p3041", .data = (ulong)&p2041_data },
+ { .compatible = "fsl,pcie-p4080", .data = (ulong)&p2041_data },
+ { .compatible = "fsl,pcie-p5040", .data = (ulong)&p2041_data },
+ { .compatible = "fsl,pcie-t102x", .data = (ulong)&t2080_data },
+ { .compatible = "fsl,pcie-t104x", .data = (ulong)&t2080_data },
+ { .compatible = "fsl,pcie-t2080", .data = (ulong)&t2080_data },
+ { .compatible = "fsl,pcie-t4240", .data = (ulong)&t2080_data },
{ }
};
diff --git a/drivers/pci/pcie_fsl.h b/drivers/pci/pcie_fsl.h
index 5eefc31fa9..dc8368d559 100644
--- a/drivers/pci/pcie_fsl.h
+++ b/drivers/pci/pcie_fsl.h
@@ -9,6 +9,9 @@
#ifndef _PCIE_FSL_H_
#define _PCIE_FSL_H_
+/* GPEX CSR */
+#define CSR_CLASSCODE 0x474
+
#ifdef CONFIG_SYS_FSL_PCI_VER_3_X
#define FSL_PCIE_CAP_ID 0x70
#else
@@ -40,6 +43,12 @@
#define LTSSM_L0_REV3 0x11
#define LTSSM_L0 0x16
+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 */
+};
+
struct fsl_pcie {
int idx;
struct udevice *bus;
@@ -49,6 +58,7 @@ struct fsl_pcie {
bool mode; /* RC&EP mode flag */
bool enabled; /* Enable status */
struct list_head list;
+ struct fsl_pcie_data *info;
};
extern struct list_head fsl_pcie_list;