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net: dwc_eth_qos: add Kconfig option to select supported configuration

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Add configuration flag to select the supported dwc driver configuration:
- CONFIG_DWC_ETH_QOS_TEGRA186
- CONFIG_DWC_ETH_QOS_IMX
- CONFIG_DWC_ETH_QOS_STM32

See Linux driver ethernet/stmicro/stmmac and associated glue layers
for other configuration examples.

This patch removes the not-selected compatibles and lets the linker remove
the unused functions to reduce the size of the driver.

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
This commit is contained in:
Patrick Delaunay 2020-06-08 11:27:19 +02:00 committed by Tom Rini
parent 9996cea75f
commit a08f2f7b94
2 changed files with 33 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

27
drivers/net/Kconfig
View File

@ -156,9 +156,30 @@ config DWC_ETH_QOS
help help
This driver supports the Synopsys Designware Ethernet QOS (Quality This driver supports the Synopsys Designware Ethernet QOS (Quality
Of Service) IP block. The IP supports many options for bus type, Of Service) IP block. The IP supports many options for bus type,
clocking/reset structure, and feature list. This driver currently clocking/reset structure, and feature list.
supports the specific configuration used in NVIDIA's Tegra186 chip,
but should be extensible to other combinations quite easily. config DWC_ETH_QOS_IMX
bool "Synopsys DWC Ethernet QOS device support for IMX"
depends on DWC_ETH_QOS
help
The Synopsys Designware Ethernet QOS IP block with the specific
configuration used in IMX soc.
config DWC_ETH_QOS_STM32
bool "Synopsys DWC Ethernet QOS device support for STM32"
depends on DWC_ETH_QOS
default y if ARCH_STM32MP
help
The Synopsys Designware Ethernet QOS IP block with the specific
configuration used in STM32MP soc.
config DWC_ETH_QOS_TEGRA186
bool "Synopsys DWC Ethernet QOS device support for TEGRA186"
depends on DWC_ETH_QOS
default y if TEGRA186
help
The Synopsys Designware Ethernet QOS IP block with specific
configuration used in NVIDIA's Tegra186 chip.
config E1000 config E1000
bool "Intel PRO/1000 Gigabit Ethernet support" bool "Intel PRO/1000 Gigabit Ethernet support"

12
drivers/net/dwc_eth_qos.c
View File

@ -2100,7 +2100,7 @@ static struct eqos_ops eqos_tegra186_ops = {
.eqos_get_tick_clk_rate = eqos_get_tick_clk_rate_tegra186 .eqos_get_tick_clk_rate = eqos_get_tick_clk_rate_tegra186
}; };
static const struct eqos_config eqos_tegra186_config = { static const struct eqos_config __maybe_unused eqos_tegra186_config = {
.reg_access_always_ok = false, .reg_access_always_ok = false,
.mdio_wait = 10, .mdio_wait = 10,
.swr_wait = 10, .swr_wait = 10,
@ -2127,7 +2127,7 @@ static struct eqos_ops eqos_stm32_ops = {
.eqos_get_tick_clk_rate = eqos_get_tick_clk_rate_stm32 .eqos_get_tick_clk_rate = eqos_get_tick_clk_rate_stm32
}; };
static const struct eqos_config eqos_stm32_config = { static const struct eqos_config __maybe_unused eqos_stm32_config = {
.reg_access_always_ok = false, .reg_access_always_ok = false,
.mdio_wait = 10000, .mdio_wait = 10000,
.swr_wait = 50, .swr_wait = 50,
@ -2154,7 +2154,7 @@ static struct eqos_ops eqos_imx_ops = {
.eqos_get_tick_clk_rate = eqos_get_tick_clk_rate_imx .eqos_get_tick_clk_rate = eqos_get_tick_clk_rate_imx
}; };
struct eqos_config eqos_imx_config = { struct eqos_config __maybe_unused eqos_imx_config = {
.reg_access_always_ok = false, .reg_access_always_ok = false,
.mdio_wait = 10000, .mdio_wait = 10000,
.swr_wait = 50, .swr_wait = 50,
@ -2165,18 +2165,24 @@ struct eqos_config eqos_imx_config = {
}; };
static const struct udevice_id eqos_ids[] = { static const struct udevice_id eqos_ids[] = {
#if IS_ENABLED(CONFIG_DWC_ETH_QOS_TEGRA186)
{ {
.compatible = "nvidia,tegra186-eqos", .compatible = "nvidia,tegra186-eqos",
.data = (ulong)&eqos_tegra186_config .data = (ulong)&eqos_tegra186_config
}, },
#endif
#if IS_ENABLED(CONFIG_DWC_ETH_QOS_STM32)
{ {
.compatible = "st,stm32mp1-dwmac", .compatible = "st,stm32mp1-dwmac",
.data = (ulong)&eqos_stm32_config .data = (ulong)&eqos_stm32_config
}, },
#endif
#if IS_ENABLED(CONFIG_DWC_ETH_QOS_IMX)
{ {
.compatible = "fsl,imx-eqos", .compatible = "fsl,imx-eqos",
.data = (ulong)&eqos_imx_config .data = (ulong)&eqos_imx_config
}, },
#endif
{ } { }
}; };