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| author | Aaro Koskinen <aaro.koskinen@iki.fi> | 2019-02-05 00:41:45 +0200 |
|---|---|---|
| committer | Paul Burton <paul.burton@mips.com> | 2019-02-07 15:22:30 -0800 |
| commit | 565485b8b5745946a303673873acd91de63b0657 (patch) | |
| tree | 7eeddaa866e0dc63e490a05c59d0f55603e2f29e /arch/mips/cavium-octeon | |
| parent | 3315b6b336c88969547f7e9f2e105a815eea529a (diff) | |
| download | linux-stable-565485b8b5745946a303673873acd91de63b0657.tar.gz linux-stable-565485b8b5745946a303673873acd91de63b0657.tar.bz2 linux-stable-565485b8b5745946a303673873acd91de63b0657.zip | |
MIPS: OCTEON: add fixed-link nodes to in-kernel device tree
Currently OCTEON ethernet falls back to phyless operation on
boards where we have no known PHY address or a fixed-link node.
Add fixed-link support for boards that need it, so we can clean up
the platform code and ethernet driver from some legacy code.
Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: linux-mips@vger.kernel.org
Diffstat (limited to 'arch/mips/cavium-octeon')
| -rw-r--r-- | arch/mips/cavium-octeon/octeon-platform.c | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/arch/mips/cavium-octeon/octeon-platform.c b/arch/mips/cavium-octeon/octeon-platform.c index 1f9ba60f7375..b4073750822d 100644 --- a/arch/mips/cavium-octeon/octeon-platform.c +++ b/arch/mips/cavium-octeon/octeon-platform.c @@ -458,6 +458,23 @@ static bool __init octeon_has_88e1145(void) !OCTEON_IS_MODEL(OCTEON_CN56XX); } +static bool __init octeon_has_fixed_link(int ipd_port) +{ + switch (cvmx_sysinfo_get()->board_type) { + case CVMX_BOARD_TYPE_CN3005_EVB_HS5: + case CVMX_BOARD_TYPE_CN3010_EVB_HS5: + case CVMX_BOARD_TYPE_CN3020_EVB_HS5: + case CVMX_BOARD_TYPE_CUST_NB5: + case CVMX_BOARD_TYPE_EBH3100: + /* Port 1 on these boards is always gigabit. */ + return ipd_port == 1; + case CVMX_BOARD_TYPE_BBGW_REF: + /* Ports 0 and 1 connect to the switch. */ + return ipd_port == 0 || ipd_port == 1; + } + return false; +} + static void __init octeon_fdt_set_phy(int eth, int phy_addr) { const __be32 *phy_handle; @@ -592,6 +609,7 @@ static void __init octeon_fdt_pip_port(int iface, int i, int p, int max) int eth; int phy_addr; int ipd_port; + int fixed_link; snprintf(name_buffer, sizeof(name_buffer), "ethernet@%x", p); eth = fdt_subnode_offset(initial_boot_params, iface, name_buffer); @@ -609,6 +627,12 @@ static void __init octeon_fdt_pip_port(int iface, int i, int p, int max) phy_addr = cvmx_helper_board_get_mii_address(ipd_port); octeon_fdt_set_phy(eth, phy_addr); + + fixed_link = fdt_subnode_offset(initial_boot_params, eth, "fixed-link"); + if (fixed_link < 0) + WARN_ON(octeon_has_fixed_link(ipd_port)); + else if (!octeon_has_fixed_link(ipd_port)) + fdt_nop_node(initial_boot_params, fixed_link); } static void __init octeon_fdt_pip_iface(int pip, int idx) |