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@xxxxxxxxxxxx>
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@xxxxxxxxxx>
- Mani
> Reviewed-by: Stanimir Varbanov <svarbanov@xxxxxxx>
> Reviewed-by: Florian Fainelli <florian.fainelli@xxxxxxxxxxxx>
> ---
> 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
>
--
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