| Message ID | 20240731222831.14895-13-james.quinlan@broadcom.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | PCI: brcnstb: Enable STB 7712 SOC | expand |
On Wed, Jul 31, 2024 at 06:28:26PM -0400, Jim Quinlan wrote: > The Broadcom STB 7712 is the sibling chip of the RPi 5 (2712). > It has one PCIe controller with a single port, supports gen2 > and one lane only. The current revision of the chip is "C0" > or "C1". > > Signed-off-by: Jim Quinlan <james.quinlan@broadcom.com> Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> - Mani > Reviewed-by: Stanimir Varbanov <svarbanov@suse.de> > Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com> > --- > drivers/pci/controller/pcie-brcmstb.c | 20 ++++++++++++++++++++ > 1 file changed, 20 insertions(+) > > diff --git a/drivers/pci/controller/pcie-brcmstb.c b/drivers/pci/controller/pcie-brcmstb.c > index 4623b70f9ad8..44b323a13357 100644 > --- a/drivers/pci/controller/pcie-brcmstb.c > +++ b/drivers/pci/controller/pcie-brcmstb.c > @@ -1202,6 +1202,10 @@ static void brcm_extend_rbus_timeout(struct brcm_pcie *pcie) > const unsigned int REG_OFFSET = PCIE_RGR1_SW_INIT_1(pcie) - 8; > u32 timeout_us = 4000000; /* 4 seconds, our setting for L1SS */ > > + /* 7712 does not have this (RGR1) timer */ > + if (pcie->soc_base == BCM7712) > + return; > + > /* Each unit in timeout register is 1/216,000,000 seconds */ > writel(216 * timeout_us, pcie->base + REG_OFFSET); > } > @@ -1673,6 +1677,13 @@ static const int pcie_offsets_bmips_7425[] = { > [PCIE_INTR2_CPU_BASE] = 0x4300, > }; > > +static const int pcie_offset_bcm7712[] = { > + [EXT_CFG_INDEX] = 0x9000, > + [EXT_CFG_DATA] = 0x9004, > + [PCIE_HARD_DEBUG] = 0x4304, > + [PCIE_INTR2_CPU_BASE] = 0x4400, > +}; > + > static const struct pcie_cfg_data generic_cfg = { > .offsets = pcie_offsets, > .soc_base = GENERIC, > @@ -1738,6 +1749,14 @@ static const struct pcie_cfg_data bcm7216_cfg = { > .num_inbound_wins = 3, > }; > > +static const struct pcie_cfg_data bcm7712_cfg = { > + .offsets = pcie_offset_bcm7712, > + .perst_set = brcm_pcie_perst_set_7278, > + .bridge_sw_init_set = brcm_pcie_bridge_sw_init_set_generic, > + .soc_base = BCM7712, > + .num_inbound_wins = 10, > +}; > + > static const struct of_device_id brcm_pcie_match[] = { > { .compatible = "brcm,bcm2711-pcie", .data = &bcm2711_cfg }, > { .compatible = "brcm,bcm4908-pcie", .data = &bcm4908_cfg }, > @@ -1747,6 +1766,7 @@ static const struct of_device_id brcm_pcie_match[] = { > { .compatible = "brcm,bcm7445-pcie", .data = &generic_cfg }, > { .compatible = "brcm,bcm7435-pcie", .data = &bcm7435_cfg }, > { .compatible = "brcm,bcm7425-pcie", .data = &bcm7425_cfg }, > + { .compatible = "brcm,bcm7712-pcie", .data = &bcm7712_cfg }, > {}, > }; > > -- > 2.17.1 >
diff --git a/drivers/pci/controller/pcie-brcmstb.c b/drivers/pci/controller/pcie-brcmstb.c index 4623b70f9ad8..44b323a13357 100644 --- a/drivers/pci/controller/pcie-brcmstb.c +++ b/drivers/pci/controller/pcie-brcmstb.c @@ -1202,6 +1202,10 @@ static void brcm_extend_rbus_timeout(struct brcm_pcie *pcie) const unsigned int REG_OFFSET = PCIE_RGR1_SW_INIT_1(pcie) - 8; u32 timeout_us = 4000000; /* 4 seconds, our setting for L1SS */ + /* 7712 does not have this (RGR1) timer */ + if (pcie->soc_base == BCM7712) + return; + /* Each unit in timeout register is 1/216,000,000 seconds */ writel(216 * timeout_us, pcie->base + REG_OFFSET); } @@ -1673,6 +1677,13 @@ static const int pcie_offsets_bmips_7425[] = { [PCIE_INTR2_CPU_BASE] = 0x4300, }; +static const int pcie_offset_bcm7712[] = { + [EXT_CFG_INDEX] = 0x9000, + [EXT_CFG_DATA] = 0x9004, + [PCIE_HARD_DEBUG] = 0x4304, + [PCIE_INTR2_CPU_BASE] = 0x4400, +}; + static const struct pcie_cfg_data generic_cfg = { .offsets = pcie_offsets, .soc_base = GENERIC, @@ -1738,6 +1749,14 @@ static const struct pcie_cfg_data bcm7216_cfg = { .num_inbound_wins = 3, }; +static const struct pcie_cfg_data bcm7712_cfg = { + .offsets = pcie_offset_bcm7712, + .perst_set = brcm_pcie_perst_set_7278, + .bridge_sw_init_set = brcm_pcie_bridge_sw_init_set_generic, + .soc_base = BCM7712, + .num_inbound_wins = 10, +}; + static const struct of_device_id brcm_pcie_match[] = { { .compatible = "brcm,bcm2711-pcie", .data = &bcm2711_cfg }, { .compatible = "brcm,bcm4908-pcie", .data = &bcm4908_cfg }, @@ -1747,6 +1766,7 @@ static const struct of_device_id brcm_pcie_match[] = { { .compatible = "brcm,bcm7445-pcie", .data = &generic_cfg }, { .compatible = "brcm,bcm7435-pcie", .data = &bcm7435_cfg }, { .compatible = "brcm,bcm7425-pcie", .data = &bcm7425_cfg }, + { .compatible = "brcm,bcm7712-pcie", .data = &bcm7712_cfg }, {}, };