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pci: tegra: add/enable support for Tegra210 

This needs a separate compatible value from Tegra124 since the new HW
version has bugs that would prevent a driver for previous HW versions
from operating at all.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Tom Warren <twarren@nvidia.com>
This commit is contained in:
Stephen Warren 2015-10-05 17:00:44 -06:00 committed by Tom Warren
parent a02e263548
commit d9eda6c441
3 changed files with 24 additions and 0 deletions
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22
drivers/pci/pci_tegra.c
View File

@ -387,6 +387,7 @@ static int tegra_pcie_get_xbar_config(const void *fdt, int node, u32 lanes,
break;
case COMPAT_NVIDIA_TEGRA124_PCIE:
case COMPAT_NVIDIA_TEGRA210_PCIE:
switch (lanes) {
case 0x0000104:
debug("4x1, 1x1 configuration\n");
@ -1033,6 +1034,17 @@ static const struct tegra_pcie_soc tegra124_pcie_soc = {
.force_pca_enable = false,
};
static const struct tegra_pcie_soc tegra210_pcie_soc = {
.num_ports = 2,
.pads_pll_ctl = PADS_PLL_CTL_TEGRA30,
.tx_ref_sel = PADS_PLL_CTL_TXCLKREF_BUF_EN,
.has_pex_clkreq_en = true,
.has_pex_bias_ctrl = true,
.has_cml_clk = true,
.has_gen2 = true,
.force_pca_enable = true,
};
static int process_nodes(const void *fdt, int nodes[], unsigned int count)
{
unsigned int i;
@ -1068,6 +1080,10 @@ static int process_nodes(const void *fdt, int nodes[], unsigned int count)
soc = &tegra124_pcie_soc;
break;
case COMPAT_NVIDIA_TEGRA210_PCIE:
soc = &tegra210_pcie_soc;
break;
default:
error("unsupported compatible: %s",
fdtdec_get_compatible(id));
@ -1164,6 +1180,12 @@ void pci_init_board(void)
tegra_pcie_board_init();
count = fdtdec_find_aliases_for_id(fdt, "pcie-controller",
COMPAT_NVIDIA_TEGRA210_PCIE,
nodes, ARRAY_SIZE(nodes));
if (process_nodes(fdt, nodes, count))
return;
count = fdtdec_find_aliases_for_id(fdt, "pcie-controller",
COMPAT_NVIDIA_TEGRA124_PCIE,
nodes, ARRAY_SIZE(nodes));

1
include/fdtdec.h
View File

@ -130,6 +130,7 @@ enum fdt_compat_id {
COMPAT_NVIDIA_TEGRA30_SDMMC, /* Tegra30 SDMMC controller */
COMPAT_NVIDIA_TEGRA20_SDMMC, /* Tegra20 SDMMC controller */
COMPAT_NVIDIA_TEGRA124_PCIE, /* Tegra 124 PCIe controller */
COMPAT_NVIDIA_TEGRA210_PCIE, /* Tegra 210 PCIe controller */
COMPAT_NVIDIA_TEGRA30_PCIE, /* Tegra 30 PCIe controller */
COMPAT_NVIDIA_TEGRA20_PCIE, /* Tegra 20 PCIe controller */
COMPAT_NVIDIA_TEGRA124_XUSB_PADCTL,

1
lib/fdtdec.c
View File

@ -36,6 +36,7 @@ static const char * const compat_names[COMPAT_COUNT] = {
COMPAT(NVIDIA_TEGRA30_SDMMC, "nvidia,tegra30-sdhci"),
COMPAT(NVIDIA_TEGRA20_SDMMC, "nvidia,tegra20-sdhci"),
COMPAT(NVIDIA_TEGRA124_PCIE, "nvidia,tegra124-pcie"),
COMPAT(NVIDIA_TEGRA210_PCIE, "nvidia,tegra210-pcie"),
COMPAT(NVIDIA_TEGRA30_PCIE, "nvidia,tegra30-pcie"),
COMPAT(NVIDIA_TEGRA20_PCIE, "nvidia,tegra20-pcie"),
COMPAT(NVIDIA_TEGRA124_XUSB_PADCTL, "nvidia,tegra124-xusb-padctl"),