diff options
Diffstat (limited to 'drivers/ddr/fsl')
| -rw-r--r-- | drivers/ddr/fsl/fsl_ddr_gen4.c | 60 |
1 files changed, 49 insertions, 11 deletions
diff --git a/drivers/ddr/fsl/fsl_ddr_gen4.c b/drivers/ddr/fsl/fsl_ddr_gen4.c index 7df9178415..c225c8e723 100644 --- a/drivers/ddr/fsl/fsl_ddr_gen4.c +++ b/drivers/ddr/fsl/fsl_ddr_gen4.c @@ -16,6 +16,8 @@ #include <asm/arch/clock.h> #endif +#define CTLR_INTLV_MASK 0x20000000 + #if defined(CONFIG_SYS_FSL_ERRATUM_A008511) | \ defined(CONFIG_SYS_FSL_ERRATUM_A009803) static void set_wait_for_bits_clear(void *ptr, u32 value, u32 bits) @@ -54,6 +56,7 @@ void fsl_ddr_set_memctl_regs(const fsl_ddr_cfg_regs_t *regs, u32 temp32; u32 total_gb_size_per_controller; int timeout; + int mod_bnds = 0; #ifdef CONFIG_SYS_FSL_ERRATUM_A008511 u32 mr6; @@ -91,6 +94,7 @@ void fsl_ddr_set_memctl_regs(const fsl_ddr_cfg_regs_t *regs, printf("%s unexpected ctrl_num = %u\n", __func__, ctrl_num); return; } + mod_bnds = regs->cs[0].config & CTLR_INTLV_MASK; if (step == 2) goto step2; @@ -102,25 +106,48 @@ void fsl_ddr_set_memctl_regs(const fsl_ddr_cfg_regs_t *regs, ddr_out32(&ddr->eor, regs->ddr_eor); ddr_out32(&ddr->sdram_clk_cntl, regs->ddr_sdram_clk_cntl); - for (i = 0; i < CONFIG_CHIP_SELECTS_PER_CTRL; i++) { if (i == 0) { - ddr_out32(&ddr->cs0_bnds, regs->cs[i].bnds); - ddr_out32(&ddr->cs0_config, regs->cs[i].config); + if (mod_bnds) { + debug("modified bnds\n"); + ddr_out32(&ddr->cs0_bnds, + (regs->cs[i].bnds & 0xfffefffe) >> 1); + ddr_out32(&ddr->cs0_config, + (regs->cs[i].config & + ~CTLR_INTLV_MASK)); + } else { + ddr_out32(&ddr->cs0_bnds, regs->cs[i].bnds); + ddr_out32(&ddr->cs0_config, regs->cs[i].config); + } ddr_out32(&ddr->cs0_config_2, regs->cs[i].config_2); } else if (i == 1) { - ddr_out32(&ddr->cs1_bnds, regs->cs[i].bnds); + if (mod_bnds) { + ddr_out32(&ddr->cs1_bnds, + (regs->cs[i].bnds & 0xfffefffe) >> 1); + } else { + ddr_out32(&ddr->cs1_bnds, regs->cs[i].bnds); + } ddr_out32(&ddr->cs1_config, regs->cs[i].config); ddr_out32(&ddr->cs1_config_2, regs->cs[i].config_2); } else if (i == 2) { - ddr_out32(&ddr->cs2_bnds, regs->cs[i].bnds); + if (mod_bnds) { + ddr_out32(&ddr->cs2_bnds, + (regs->cs[i].bnds & 0xfffefffe) >> 1); + } else { + ddr_out32(&ddr->cs2_bnds, regs->cs[i].bnds); + } ddr_out32(&ddr->cs2_config, regs->cs[i].config); ddr_out32(&ddr->cs2_config_2, regs->cs[i].config_2); } else if (i == 3) { - ddr_out32(&ddr->cs3_bnds, regs->cs[i].bnds); + if (mod_bnds) { + ddr_out32(&ddr->cs3_bnds, + (regs->cs[i].bnds & 0xfffefffe) >> 1); + } else { + ddr_out32(&ddr->cs3_bnds, regs->cs[i].bnds); + } ddr_out32(&ddr->cs3_config, regs->cs[i].config); ddr_out32(&ddr->cs3_config_2, regs->cs[i].config_2); } @@ -417,13 +444,10 @@ step2: ((regs->cs[i].config >> 8) & 0x7) + 12 + ((regs->cs[i].config >> 4) & 0x3) + 0 + ((regs->cs[i].config >> 0) & 0x7) + 8 + + ((regs->ddr_sdram_cfg_3 >> 4) & 0x3) + 3 - ((regs->ddr_sdram_cfg >> 19) & 0x3) - 26); /* minus 26 (count of 64M) */ } - if (fsl_ddr_get_intl3r() & 0x80000000) /* 3-way interleaving */ - total_gb_size_per_controller *= 3; - else if (regs->cs[0].config & 0x20000000) /* 2-way interleaving */ - total_gb_size_per_controller <<= 1; /* * total memory / bus width = transactions needed * transactions needed / data rate = seconds @@ -449,6 +473,21 @@ step2: if (timeout <= 0) printf("Waiting for D_INIT timeout. Memory may not work.\n"); + if (mod_bnds) { + debug("Reset to original bnds\n"); + ddr_out32(&ddr->cs0_bnds, regs->cs[0].bnds); +#if (CONFIG_CHIP_SELECTS_PER_CTRL > 1) + ddr_out32(&ddr->cs1_bnds, regs->cs[1].bnds); +#if (CONFIG_CHIP_SELECTS_PER_CTRL > 2) + ddr_out32(&ddr->cs2_bnds, regs->cs[2].bnds); +#if (CONFIG_CHIP_SELECTS_PER_CTRL > 3) + ddr_out32(&ddr->cs3_bnds, regs->cs[3].bnds); +#endif +#endif +#endif + ddr_out32(&ddr->cs0_config, regs->cs[0].config); + } + #ifdef CONFIG_SYS_FSL_ERRATUM_A009663 ddr_out32(&ddr->sdram_interval, regs->ddr_sdram_interval); #endif @@ -468,7 +507,6 @@ step2: #define BIST_CR 0x80010000 #define BIST_CR_EN 0x80000000 #define BIST_CR_STAT 0x00000001 -#define CTLR_INTLV_MASK 0x20000000 /* Perform build-in test on memory. Three-way interleaving is not yet * supported by this code. */ if (env_get_f("ddr_bist", buffer, CONFIG_SYS_CBSIZE) >= 0) { |