diff options
| author | York Sun <yorksun@freescale.com> | 2014-08-13 10:21:05 -0700 |
|---|---|---|
| committer | York Sun <yorksun@freescale.com> | 2014-09-25 08:36:18 -0700 |
| commit | d9c68b1444acb383684636eb856fd7e4cec04129 (patch) | |
| tree | 10f046be69384766c2418bde0b6f215412ded707 /board/freescale/ls2085a/ddr.c | |
| parent | 1d71efbb0345ff3a8ac45e62bef36813abe1703e (diff) | |
ARMv8/ls2085a_emu: Enable DP-DDR as standalone memory block
DP-DDR is used for DPAA, separated from main memory pool for general
use. It has 32-bit bus width and use a standard DDR4 DIMM (64-bit).
Signed-off-by: York Sun <yorksun@freescale.com>
Diffstat (limited to 'board/freescale/ls2085a/ddr.c')
| -rw-r--r-- | board/freescale/ls2085a/ddr.c | 34 |
1 files changed, 32 insertions, 2 deletions
diff --git a/board/freescale/ls2085a/ddr.c b/board/freescale/ls2085a/ddr.c index 257bc162d0..b4a3fc9a9e 100644 --- a/board/freescale/ls2085a/ddr.c +++ b/board/freescale/ls2085a/ddr.c @@ -30,9 +30,9 @@ void fsl_ddr_board_options(memctl_options_t *popts, * to pbsp = rdimms[ctrl_num] or pbsp = udimms[ctrl_num]; */ if (popts->registered_dimm_en) - pbsp = rdimms[0]; + pbsp = rdimms[ctrl_num]; else - pbsp = udimms[0]; + pbsp = udimms[ctrl_num]; /* Get clk_adjust, wrlvl_start, wrlvl_ctl, according to the board ddr @@ -72,6 +72,12 @@ found: pbsp->clk_adjust, pbsp->wrlvl_start, pbsp->wrlvl_ctl_2, pbsp->wrlvl_ctl_3); + if (ctrl_num == CONFIG_DP_DDR_CTRL) { + /* force DDR bus width to 32 bits */ + popts->data_bus_width = 1; + popts->otf_burst_chop_en = 0; + popts->burst_length = DDR_BL8; + } /* * Factors to consider for half-strength driver enable: * - number of DIMMs installed @@ -163,6 +169,10 @@ phys_size_t initdram(int board_type) void dram_init_banksize(void) { +#ifdef CONFIG_SYS_DP_DDR_BASE_PHY + phys_size_t dp_ddr_size; +#endif + gd->bd->bi_dram[0].start = CONFIG_SYS_SDRAM_BASE; if (gd->ram_size > CONFIG_SYS_LS2_DDR_BLOCK1_SIZE) { gd->bd->bi_dram[0].size = CONFIG_SYS_LS2_DDR_BLOCK1_SIZE; @@ -172,4 +182,24 @@ void dram_init_banksize(void) } else { gd->bd->bi_dram[0].size = gd->ram_size; } + +#ifdef CONFIG_SYS_DP_DDR_BASE_PHY + /* initialize DP-DDR here */ + puts("DP-DDR: "); + /* + * DDR controller use 0 as the base address for binding. + * It is mapped to CONFIG_SYS_DP_DDR_BASE for core to access. + */ + dp_ddr_size = fsl_other_ddr_sdram(CONFIG_SYS_DP_DDR_BASE_PHY, + CONFIG_DP_DDR_CTRL, + CONFIG_DP_DDR_NUM_CTRLS, + CONFIG_DP_DDR_DIMM_SLOTS_PER_CTLR, + NULL, NULL, NULL); + if (dp_ddr_size) { + gd->bd->bi_dram[2].start = CONFIG_SYS_DP_DDR_BASE; + gd->bd->bi_dram[2].size = dp_ddr_size; + } else { + puts("Not detected"); + } +#endif } |