diff options
| author | York Sun <yorksun@freescale.com> | 2014-10-27 11:31:33 -0700 |
|---|---|---|
| committer | York Sun <yorksun@freescale.com> | 2014-12-05 08:06:08 -0800 |
| commit | 14109c7a6aa9d9a30da85ad9e6bbd502ba125abc (patch) | |
| tree | 9571da41139d9af1158662d0b388b46efef3912a /arch/powerpc/cpu | |
| parent | ed9e4e427295623197d8dd76a1ca9ac15e085572 (diff) | |
mpc85xx/t2080: Fix parsing DDR ratio for new revision
T2080 rev 1.1 changes MEM_RAT in RCW, which requires new parsing for ratio,
the same way as T4240 rev 2.0.
Signed-off-by: York Sun <yorksun@freescale.com>
CC: Shengzhou Liu <Shengzhou.Liu@freescale.com>
Diffstat (limited to 'arch/powerpc/cpu')
| -rw-r--r-- | arch/powerpc/cpu/mpc85xx/speed.c | 23 |
1 files changed, 20 insertions, 3 deletions
diff --git a/arch/powerpc/cpu/mpc85xx/speed.c b/arch/powerpc/cpu/mpc85xx/speed.c index 8426b1a5c2..56f41bcf7b 100644 --- a/arch/powerpc/cpu/mpc85xx/speed.c +++ b/arch/powerpc/cpu/mpc85xx/speed.c @@ -37,6 +37,7 @@ void get_sys_info(sys_info_t *sys_info) #ifdef CONFIG_SYS_FSL_QORIQ_CHASSIS2 int cc_group[12] = CONFIG_SYS_FSL_CLUSTER_CLOCKS; #endif + __maybe_unused u32 svr; const u8 core_cplx_PLL[16] = { [ 0] = 0, /* CC1 PPL / 1 */ @@ -122,11 +123,27 @@ void get_sys_info(sys_info_t *sys_info) /* T4240/T4160 Rev2.0 MEM_PLL_RAT uses a value which is half of * T4240/T4160 Rev1.0. eg. It's 12 in Rev1.0, however, for Rev2.0 * it uses 6. + * T2080 rev 1.1 and later also use half mem_pll comparing with rev 1.0 */ #if defined(CONFIG_PPC_T4240) || defined(CONFIG_PPC_T4160) || \ - defined(CONFIG_PPC_T4080) - if (SVR_MAJ(get_svr()) >= 2) - mem_pll_rat *= 2; + defined(CONFIG_PPC_T4080) || defined(CONFIG_PPC_T2080) + svr = get_svr(); + switch (SVR_SOC_VER(svr)) { + case SVR_T4240: + case SVR_T4160: + case SVR_T4120: + case SVR_T4080: + if (SVR_MAJ(svr) >= 2) + mem_pll_rat *= 2; + break; + case SVR_T2080: + case SVR_T2081: + if ((SVR_MAJ(svr) > 1) || (SVR_MIN(svr) >= 1)) + mem_pll_rat *= 2; + break; + default: + break; + } #endif if (mem_pll_rat > 2) sys_info->freq_ddrbus *= mem_pll_rat; |