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| author | Hou Zhiqiang <Zhiqiang.Hou@nxp.com> | 2016-08-02 14:03:22 +0300 |
|---|---|---|
| committer | York Sun <york.sun@nxp.com> | 2016-09-15 00:06:49 +0300 |
| commit | 71fe22256cc9eb5decdd98842ec030ba921cd321 (patch) | |
| tree | 8b1aa6d21838bf6391d1e7ef1e54a3822fc154ca /arch/arm/cpu/armv7/ls102xa/fsl_ls1_serdes.c | |
| parent | 07806e622963902efa57959a447c1dd6419e126b (diff) | |
| download | u-boot-71fe22256cc9eb5decdd98842ec030ba921cd321.tar.xz | |
fsl: serdes: ensure accessing the initialized maps of serdes protocol
Up to now, the function is_serdes_configed() doesn't check if the map
of serdes protocol is initialized before accessing it. The function
is_serdes_configed() will get wrong result when it was called before
the serdes protocol maps initialized. As the first element of the map
isn't used for any device, so use it as the flag to indicate if the
map has been initialized.
Signed-off-by: Hou Zhiqiang <Zhiqiang.Hou@nxp.com>
Reviewed-by: York Sun <york.sun@nxp.com>
Diffstat (limited to 'arch/arm/cpu/armv7/ls102xa/fsl_ls1_serdes.c')
| -rw-r--r-- | arch/arm/cpu/armv7/ls102xa/fsl_ls1_serdes.c | 15 |
1 files changed, 13 insertions, 2 deletions
diff --git a/arch/arm/cpu/armv7/ls102xa/fsl_ls1_serdes.c b/arch/arm/cpu/armv7/ls102xa/fsl_ls1_serdes.c index 9b78acb25a..86ace9081a 100644 --- a/arch/arm/cpu/armv7/ls102xa/fsl_ls1_serdes.c +++ b/arch/arm/cpu/armv7/ls102xa/fsl_ls1_serdes.c @@ -23,9 +23,15 @@ int is_serdes_configured(enum srds_prtcl device) u64 ret = 0; #ifdef CONFIG_SYS_FSL_SRDS_1 + if (!(serdes1_prtcl_map & (1ULL << NONE))) + fsl_serdes_init(); + ret |= (1ULL << device) & serdes1_prtcl_map; #endif #ifdef CONFIG_SYS_FSL_SRDS_2 + if (!(serdes2_prtcl_map & (1ULL << NONE))) + fsl_serdes_init(); + ret |= (1ULL << device) & serdes2_prtcl_map; #endif @@ -87,19 +93,24 @@ u64 serdes_init(u32 sd, u32 sd_addr, u32 sd_prctl_mask, u32 sd_prctl_shift) serdes_prtcl_map |= (1ULL << lane_prtcl); } + /* Set the first bit to indicate serdes has been initialized */ + serdes_prtcl_map |= (1ULL << NONE); + return serdes_prtcl_map; } void fsl_serdes_init(void) { #ifdef CONFIG_SYS_FSL_SRDS_1 - serdes1_prtcl_map = serdes_init(FSL_SRDS_1, + if (!(serdes1_prtcl_map & (1ULL << NONE))) + serdes1_prtcl_map = serdes_init(FSL_SRDS_1, CONFIG_SYS_FSL_SERDES_ADDR, RCWSR4_SRDS1_PRTCL_MASK, RCWSR4_SRDS1_PRTCL_SHIFT); #endif #ifdef CONFIG_SYS_FSL_SRDS_2 - serdes2_prtcl_map = serdes_init(FSL_SRDS_2, + if (!(serdes2_prtcl_map & (1ULL << NONE))) + serdes2_prtcl_map = serdes_init(FSL_SRDS_2, CONFIG_SYS_FSL_SERDES_ADDR + FSL_SRDS_2 * 0x1000, RCWSR4_SRDS2_PRTCL_MASK, |