diff options
| author | York Sun <yorksun@freescale.com> | 2014-02-10 13:59:44 -0800 |
|---|---|---|
| committer | Tom Rini <trini@ti.com> | 2014-02-21 11:06:13 -0500 |
| commit | 6b1e1254f326940e5b65c7029f71b964bdf28fd4 (patch) | |
| tree | a8e596b2d01fe4a952e253b9b42972b040a4a165 /drivers/ddr/fsl/options.c | |
| parent | 6b9e309a8a7f0f33252288f0ed8794a83a488301 (diff) | |
| download | u-boot-6b1e1254f326940e5b65c7029f71b964bdf28fd4.tar.gz | |
driver/ddr: Add 256 byte interleaving support
Freescale LayerScape SoCs support controller interleaving on 256 byte size.
This interleaving is mandoratory.
Signed-off-by: York Sun <yorksun@freescale.com>
Diffstat (limited to 'drivers/ddr/fsl/options.c')
| -rw-r--r-- | drivers/ddr/fsl/options.c | 17 |
1 files changed, 15 insertions, 2 deletions
diff --git a/drivers/ddr/fsl/options.c b/drivers/ddr/fsl/options.c index 4aafcceaf5..b0cf046fdc 100644 --- a/drivers/ddr/fsl/options.c +++ b/drivers/ddr/fsl/options.c @@ -818,21 +818,33 @@ unsigned int populate_memctl_options(int all_dimms_registered, * If memory controller interleaving is enabled, then the data * bus widths must be programmed identically for all memory controllers. * - * XXX: Attempt to set all controllers to the same chip select + * Attempt to set all controllers to the same chip select * interleaving mode. It will do a best effort to get the * requested ranks interleaved together such that the result * should be a subset of the requested configuration. + * + * if CONFIG_SYS_FSL_DDR_INTLV_256B is defined, mandatory interleaving + * with 256 Byte is enabled. */ #if (CONFIG_NUM_DDR_CONTROLLERS > 1) if (!hwconfig_sub_f("fsl_ddr", "ctlr_intlv", buf)) +#ifdef CONFIG_SYS_FSL_DDR_INTLV_256B + ; +#else goto done; - +#endif if (pdimm[0].n_ranks == 0) { printf("There is no rank on CS0 for controller %d.\n", ctrl_num); popts->memctl_interleaving = 0; goto done; } popts->memctl_interleaving = 1; +#ifdef CONFIG_SYS_FSL_DDR_INTLV_256B + popts->memctl_interleaving_mode = FSL_DDR_256B_INTERLEAVING; + popts->memctl_interleaving = 1; + debug("256 Byte interleaving\n"); + goto done; +#endif /* * test null first. if CONFIG_HWCONFIG is not defined * hwconfig_arg_cmp returns non-zero @@ -1085,6 +1097,7 @@ void check_interleaving_options(fsl_ddr_info_t *pinfo) "Memory controller interleaving disabled.\n"); } else { switch (check_intlv) { + case FSL_DDR_256B_INTERLEAVING: case FSL_DDR_CACHE_LINE_INTERLEAVING: case FSL_DDR_PAGE_INTERLEAVING: case FSL_DDR_BANK_INTERLEAVING: |