From e7f533cd5972d762e0544a38c74fce495a9d9d2f Mon Sep 17 00:00:00 2001 From: Zhao Qiang Date: Thu, 30 Oct 2014 14:07:39 +0800 Subject: [PATCH] powerpc/mpc85xx: modify erratum A007186 T2080 v1.0 has this errata while v1.1 has fixed this errata by hardware, add a new function has_errata_a007186 to check the SVR_SOC_VER, SVR_MAJ and SVR_MIN first, if the sil has errata a007186, then run the errata code, if not, doesn't run the code. Signed-off-by: Zhao Qiang Reviewed-by: York Sun --- arch/powerpc/cpu/mpc85xx/cmd_errata.c | 3 ++- .../powerpc/cpu/mpc85xx/fsl_corenet2_serdes.c | 3 ++- arch/powerpc/include/asm/fsl_errata.h | 24 +++++++++++++++++++ 3 files changed, 28 insertions(+), 2 deletions(-) diff --git a/arch/powerpc/cpu/mpc85xx/cmd_errata.c b/arch/powerpc/cpu/mpc85xx/cmd_errata.c index f9085a63e1..ec75383dea 100644 --- a/arch/powerpc/cpu/mpc85xx/cmd_errata.c +++ b/arch/powerpc/cpu/mpc85xx/cmd_errata.c @@ -271,7 +271,8 @@ static int do_errata(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) puts("Work-around for Erratum USB14 enabled\n"); #endif #ifdef CONFIG_SYS_FSL_ERRATUM_A007186 - puts("Work-around for Erratum A007186 enabled\n"); + if (has_erratum_a007186()) + puts("Work-around for Erratum A007186 enabled\n"); #endif #ifdef CONFIG_SYS_FSL_ERRATUM_A006593 puts("Work-around for Erratum A006593 enabled\n"); diff --git a/arch/powerpc/cpu/mpc85xx/fsl_corenet2_serdes.c b/arch/powerpc/cpu/mpc85xx/fsl_corenet2_serdes.c index 8edf5bb20e..5cfae47069 100644 --- a/arch/powerpc/cpu/mpc85xx/fsl_corenet2_serdes.c +++ b/arch/powerpc/cpu/mpc85xx/fsl_corenet2_serdes.c @@ -11,6 +11,7 @@ #include #include #include +#include #include "fsl_corenet2_serdes.h" #ifdef CONFIG_SYS_FSL_SRDS_1 @@ -203,7 +204,7 @@ u64 serdes_init(u32 sd, u32 sd_addr, u32 sd_prctl_mask, u32 sd_prctl_shift) sel = (sfp_spfr0 >> FUSE_VAL_SHIFT) & FUSE_VAL_MASK; - if (sel == 0x01 || sel == 0x02) { + if (has_erratum_a007186() && (sel == 0x01 || sel == 0x02)) { for (pll_num = 0; pll_num < SRDS_MAX_BANK; pll_num++) { pll_status = in_be32(&srds_regs->bank[pll_num].pllcr0); debug("A007186: pll_num=%x pllcr0=%x\n", diff --git a/arch/powerpc/include/asm/fsl_errata.h b/arch/powerpc/include/asm/fsl_errata.h index b9e2fb00fa..61c6d70c4b 100644 --- a/arch/powerpc/include/asm/fsl_errata.h +++ b/arch/powerpc/include/asm/fsl_errata.h @@ -27,3 +27,27 @@ static inline bool has_erratum_a006379(void) } #endif #endif + +#ifdef CONFIG_SYS_FSL_ERRATUM_A007186 +static inline bool has_erratum_a007186(void) +{ + u32 svr = get_svr(); + u32 soc = SVR_SOC_VER(svr); + + switch (soc) { + case SVR_T4240: + return IS_SVR_REV(svr, 2, 0); + case SVR_T4160: + return IS_SVR_REV(svr, 2, 0); + case SVR_B4860: + return IS_SVR_REV(svr, 2, 0); + case SVR_B4420: + return IS_SVR_REV(svr, 2, 0); + case SVR_T2081: + case SVR_T2080: + return IS_SVR_REV(svr, 1, 0); + } + + return false; +} +#endif -- 2.25.1