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authorKumar Gala <galak@kernel.crashing.org>2011-07-21 00:20:20 -0500
committerKumar Gala <galak@kernel.crashing.org>2011-07-29 08:53:38 -0500
commitdb564bccefaa537b4a2bd46778b00536bab17258 (patch)
treee4f28f38a67059725917d52128ee88bd28a682ea /arch
parent88b91f2d3b71101830e58f48cf31e6cefa25b1c8 (diff)
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powerpc/85xx: Add support for P2041[e] XAUI in SERDES
We add XAUI_FM1 into the SERDES tables for P2041[e] devices. However for the P2040[e] devices that dont support XAUI we handle this at runtime via SVR checks. If we are on a P2040[e] device the SERDES functions will behave as follows: is_serdes_prtcl_valid() will always report invalid if prtcl passed in is XAUI_FM1. serdes_get_prtcl() will report NONE if the prtcl in the table is set to XAUI_FM1. Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Diffstat (limited to 'arch')
-rw-r--r--arch/powerpc/cpu/mpc85xx/p2041_serdes.c26
1 files changed, 21 insertions, 5 deletions
diff --git a/arch/powerpc/cpu/mpc85xx/p2041_serdes.c b/arch/powerpc/cpu/mpc85xx/p2041_serdes.c
index 83bc82f..f68f281 100644
--- a/arch/powerpc/cpu/mpc85xx/p2041_serdes.c
+++ b/arch/powerpc/cpu/mpc85xx/p2041_serdes.c
@@ -37,8 +37,8 @@ static u8 serdes_cfg_tbl[][SRDS_MAX_LANES] = {
PCIE2, PCIE2, PCIE2, NONE, NONE, NONE, NONE, SATA1,
SATA2, NONE, NONE, NONE, NONE, },
[0x9] = {NONE, NONE, SGMII_FM1_DTSEC1, SGMII_FM1_DTSEC2, PCIE2,
- PCIE2, PCIE2, PCIE2, NONE, NONE, NONE, NONE,
- NONE, NONE, NONE, NONE, NONE, NONE, },
+ PCIE2, PCIE2, PCIE2, NONE, NONE, XAUI_FM1, XAUI_FM1,
+ XAUI_FM1, XAUI_FM1, NONE, NONE, NONE, NONE, },
[0xa] = {NONE, NONE, SGMII_FM1_DTSEC1, SGMII_FM1_DTSEC2, PCIE2,
PCIE2, PCIE2, PCIE2, NONE, NONE, PCIE3, PCIE3, PCIE3,
PCIE3, NONE, NONE, NONE, NONE, },
@@ -53,8 +53,8 @@ static u8 serdes_cfg_tbl[][SRDS_MAX_LANES] = {
SGMII_FM1_DTSEC4, NONE, NONE, NONE, NONE, SATA1, SATA2, NONE,
NONE, NONE, NONE, },
[0x17] = {NONE, NONE, PCIE1, PCIE3, PCIE2, PCIE2, SGMII_FM1_DTSEC3,
- SGMII_FM1_DTSEC4, NONE, NONE, NONE, NONE, NONE,
- NONE, NONE, NONE, NONE, NONE, },
+ SGMII_FM1_DTSEC4, NONE, NONE, XAUI_FM1, XAUI_FM1, XAUI_FM1,
+ XAUI_FM1, NONE, NONE, NONE, NONE, },
[0x19] = {NONE, NONE, SGMII_FM1_DTSEC1, SGMII_FM1_DTSEC2, PCIE2,
PCIE2, SGMII_FM1_DTSEC3, SGMII_FM1_DTSEC4, NONE, NONE,
NONE, NONE, SATA1, SATA2, NONE, NONE, NONE, NONE, },
@@ -68,19 +68,35 @@ static u8 serdes_cfg_tbl[][SRDS_MAX_LANES] = {
enum srds_prtcl serdes_get_prtcl(int cfg, int lane)
{
+ enum srds_prtcl prtcl;
+ u32 svr = get_svr();
+ u32 ver = SVR_SOC_VER(svr);
+
if (!serdes_lane_enabled(lane))
return NONE;
- return serdes_cfg_tbl[cfg][lane];
+ prtcl = serdes_cfg_tbl[cfg][lane];
+
+ /* P2040[e] does not support XAUI */
+ if (((ver == SVR_P2040) || (ver == SVR_P2040_E)) && (prtcl == XAUI_FM1))
+ prtcl = NONE;
+
+ return prtcl;
}
int is_serdes_prtcl_valid(u32 prtcl)
{
int i;
+ u32 svr = get_svr();
+ u32 ver = SVR_SOC_VER(svr);
if (prtcl > ARRAY_SIZE(serdes_cfg_tbl))
return 0;
+ /* P2040[e] does not support XAUI */
+ if (((ver == SVR_P2040) || (ver == SVR_P2040_E)) && (prtcl == XAUI_FM1))
+ return 0;
+
for (i = 0; i < SRDS_MAX_LANES; i++) {
if (serdes_cfg_tbl[prtcl][i] != NONE)
return 1;