diff options
Diffstat (limited to 'arch/powerpc')
| -rw-r--r-- | arch/powerpc/cpu/mpc8xxx/ddr/ctrl_regs.c | 4 | ||||
| -rw-r--r-- | arch/powerpc/cpu/mpc8xxx/ddr/ddr3_dimm_params.c | 1 | ||||
| -rw-r--r-- | arch/powerpc/cpu/mpc8xxx/ddr/interactive.c | 4 | ||||
| -rw-r--r-- | arch/powerpc/cpu/mpc8xxx/ddr/options.c | 2 | ||||
| -rw-r--r-- | arch/powerpc/include/asm/fsl_ddr_dimm_params.h | 1 | ||||
| -rw-r--r-- | arch/powerpc/include/asm/fsl_ddr_sdram.h | 1 |
6 files changed, 13 insertions, 0 deletions
diff --git a/arch/powerpc/cpu/mpc8xxx/ddr/ctrl_regs.c b/arch/powerpc/cpu/mpc8xxx/ddr/ctrl_regs.c index b5e4070414..bf5a6f21c1 100644 --- a/arch/powerpc/cpu/mpc8xxx/ddr/ctrl_regs.c +++ b/arch/powerpc/cpu/mpc8xxx/ddr/ctrl_regs.c @@ -681,6 +681,7 @@ static void set_ddr_sdram_cfg_2(fsl_ddr_cfg_regs_t *ddr, unsigned int odt_cfg = 0; /* ODT configuration */ unsigned int num_pr; /* Number of posted refreshes */ unsigned int slow = 0; /* DDR will be run less than 1250 */ + unsigned int x4_en = 0; /* x4 DRAM enable */ unsigned int obc_cfg; /* On-The-Fly Burst Chop Cfg */ unsigned int ap_en; /* Address Parity Enable */ unsigned int d_init; /* DRAM data initialization */ @@ -725,6 +726,8 @@ static void set_ddr_sdram_cfg_2(fsl_ddr_cfg_regs_t *ddr, ap_en = 0; } + x4_en = popts->x4_en ? 1 : 0; + #if defined(CONFIG_ECC_INIT_VIA_DDRCONTROLLER) /* Use the DDR controller to auto initialize memory. */ d_init = popts->ECC_init_using_memctl; @@ -747,6 +750,7 @@ static void set_ddr_sdram_cfg_2(fsl_ddr_cfg_regs_t *ddr, | ((odt_cfg & 0x3) << 21) | ((num_pr & 0xf) << 12) | ((slow & 1) << 11) + | (x4_en << 10) | (qd_en << 9) | (unq_mrs_en << 8) | ((obc_cfg & 0x1) << 6) diff --git a/arch/powerpc/cpu/mpc8xxx/ddr/ddr3_dimm_params.c b/arch/powerpc/cpu/mpc8xxx/ddr/ddr3_dimm_params.c index 3e7c269e40..b67158c0ff 100644 --- a/arch/powerpc/cpu/mpc8xxx/ddr/ddr3_dimm_params.c +++ b/arch/powerpc/cpu/mpc8xxx/ddr/ddr3_dimm_params.c @@ -129,6 +129,7 @@ ddr_compute_dimm_parameters(const ddr3_spd_eeprom_t *spd, pdimm->ec_sdram_width = 0; pdimm->data_width = pdimm->primary_sdram_width + pdimm->ec_sdram_width; + pdimm->device_width = 1 << ((spd->organization & 0x7) + 2); /* These are the types defined by the JEDEC DDR3 SPD spec */ pdimm->mirrored_dimm = 0; diff --git a/arch/powerpc/cpu/mpc8xxx/ddr/interactive.c b/arch/powerpc/cpu/mpc8xxx/ddr/interactive.c index 1ed6c77150..260fce577f 100644 --- a/arch/powerpc/cpu/mpc8xxx/ddr/interactive.c +++ b/arch/powerpc/cpu/mpc8xxx/ddr/interactive.c @@ -205,6 +205,7 @@ static void fsl_ddr_dimm_parameters_edit(fsl_ddr_info_t *pinfo, DIMM_PARM(primary_sdram_width), DIMM_PARM(ec_sdram_width), DIMM_PARM(registered_dimm), + DIMM_PARM(device_width), DIMM_PARM(n_row_addr), DIMM_PARM(n_col_addr), @@ -263,6 +264,7 @@ static void print_dimm_parameters(const dimm_params_t *pdimm) DIMM_PARM(primary_sdram_width), DIMM_PARM(ec_sdram_width), DIMM_PARM(registered_dimm), + DIMM_PARM(device_width), DIMM_PARM(n_row_addr), DIMM_PARM(n_col_addr), @@ -443,6 +445,7 @@ static void fsl_ddr_options_edit(fsl_ddr_info_t *pinfo, CTRL_OPTIONS(twoT_en), CTRL_OPTIONS(threeT_en), CTRL_OPTIONS(ap_en), + CTRL_OPTIONS(x4_en), CTRL_OPTIONS(bstopre), CTRL_OPTIONS(wrlvl_override), CTRL_OPTIONS(wrlvl_sample), @@ -687,6 +690,7 @@ static void print_memctl_options(const memctl_options_t *popts) CTRL_OPTIONS(threeT_en), CTRL_OPTIONS(registered_dimm_en), CTRL_OPTIONS(ap_en), + CTRL_OPTIONS(x4_en), CTRL_OPTIONS(bstopre), CTRL_OPTIONS(wrlvl_override), CTRL_OPTIONS(wrlvl_sample), diff --git a/arch/powerpc/cpu/mpc8xxx/ddr/options.c b/arch/powerpc/cpu/mpc8xxx/ddr/options.c index 26369e0996..30cdca497e 100644 --- a/arch/powerpc/cpu/mpc8xxx/ddr/options.c +++ b/arch/powerpc/cpu/mpc8xxx/ddr/options.c @@ -700,6 +700,8 @@ unsigned int populate_memctl_options(int all_DIMMs_registered, } #endif + popts->x4_en = (pdimm[0].device_width == 4) ? 1 : 0; + /* Choose burst length. */ #if defined(CONFIG_FSL_DDR3) #if defined(CONFIG_E500MC) diff --git a/arch/powerpc/include/asm/fsl_ddr_dimm_params.h b/arch/powerpc/include/asm/fsl_ddr_dimm_params.h index ffe4db8b8a..bd312ad5c5 100644 --- a/arch/powerpc/include/asm/fsl_ddr_dimm_params.h +++ b/arch/powerpc/include/asm/fsl_ddr_dimm_params.h @@ -26,6 +26,7 @@ typedef struct dimm_params_s { unsigned int primary_sdram_width; unsigned int ec_sdram_width; unsigned int registered_dimm; + unsigned int device_width; /* x4, x8, x16 components */ /* SDRAM device parameters */ unsigned int n_row_addr; diff --git a/arch/powerpc/include/asm/fsl_ddr_sdram.h b/arch/powerpc/include/asm/fsl_ddr_sdram.h index 640d3297d6..bac22fcd1d 100644 --- a/arch/powerpc/include/asm/fsl_ddr_sdram.h +++ b/arch/powerpc/include/asm/fsl_ddr_sdram.h @@ -277,6 +277,7 @@ typedef struct memctl_options_s { unsigned int mirrored_dimm; unsigned int quad_rank_present; unsigned int ap_en; /* address parity enable for RDIMM */ + unsigned int x4_en; /* enable x4 devices */ /* Global Timing Parameters */ unsigned int cas_latency_override; |