diff options
| -rw-r--r-- | arch/arm/include/asm/arch-fsl-layerscape/config.h | 7 | ||||
| -rw-r--r-- | drivers/ddr/fsl/main.c | 1 | ||||
| -rw-r--r-- | drivers/ddr/fsl/util.c | 40 | ||||
| -rw-r--r-- | include/fsl_ddr.h | 1 |
4 files changed, 49 insertions, 0 deletions
diff --git a/arch/arm/include/asm/arch-fsl-layerscape/config.h b/arch/arm/include/asm/arch-fsl-layerscape/config.h index 5ce916c4d0..afc329ad6b 100644 --- a/arch/arm/include/asm/arch-fsl-layerscape/config.h +++ b/arch/arm/include/asm/arch-fsl-layerscape/config.h @@ -67,6 +67,13 @@ #define CCI_MN_DVM_DOMAIN_CTL 0x200 #define CCI_MN_DVM_DOMAIN_CTL_SET 0x210 +#define CCI_HN_F_0_BASE (CCI_MN_BASE + 0x200000) +#define CCI_HN_F_1_BASE (CCI_MN_BASE + 0x210000) +#define CCN_HN_F_SAM_CTL 0x8 /* offset on base HN_F base */ +#define CCN_HN_F_SAM_NODEID_MASK 0x7f +#define CCN_HN_F_SAM_NODEID_DDR0 0x4 +#define CCN_HN_F_SAM_NODEID_DDR1 0xe + #define CCI_RN_I_0_BASE (CCI_MN_BASE + 0x800000) #define CCI_RN_I_2_BASE (CCI_MN_BASE + 0x820000) #define CCI_RN_I_6_BASE (CCI_MN_BASE + 0x860000) diff --git a/drivers/ddr/fsl/main.c b/drivers/ddr/fsl/main.c index 72ec1be65d..c68663220d 100644 --- a/drivers/ddr/fsl/main.c +++ b/drivers/ddr/fsl/main.c @@ -813,6 +813,7 @@ phys_size_t fsl_ddr_sdram(void) info.board_need_mem_reset = board_need_mem_reset; info.board_mem_reset = board_assert_mem_reset; info.board_mem_de_reset = board_deassert_mem_reset; + remove_unused_controllers(&info); return __fsl_ddr_sdram(&info); } diff --git a/drivers/ddr/fsl/util.c b/drivers/ddr/fsl/util.c index ce55aea1b4..1a49b28f33 100644 --- a/drivers/ddr/fsl/util.c +++ b/drivers/ddr/fsl/util.c @@ -385,3 +385,43 @@ void fsl_ddr_sync_memctl_refresh(unsigned int first_ctrl, ddr_out32(ddrc_debug2_p[i], ddrc_debug2[i]); } #endif /* CONFIG_FSL_DDR_SYNC_REFRESH */ + +void remove_unused_controllers(fsl_ddr_info_t *info) +{ +#ifdef CONFIG_FSL_LSCH3 + int i; + u64 nodeid; + void *hnf_sam_ctrl = (void *)(CCI_HN_F_0_BASE + CCN_HN_F_SAM_CTL); + bool ddr0_used = false; + bool ddr1_used = false; + + for (i = 0; i < 8; i++) { + nodeid = in_le64(hnf_sam_ctrl) & CCN_HN_F_SAM_NODEID_MASK; + if (nodeid == CCN_HN_F_SAM_NODEID_DDR0) { + ddr0_used = true; + } else if (nodeid == CCN_HN_F_SAM_NODEID_DDR1) { + ddr1_used = true; + } else { + printf("Unknown nodeid in HN-F SAM control: 0x%llx\n", + nodeid); + } + hnf_sam_ctrl += (CCI_HN_F_1_BASE - CCI_HN_F_0_BASE); + } + if (!ddr0_used && !ddr1_used) { + printf("Invalid configuration in HN-F SAM control\n"); + return; + } + + if (!ddr0_used && info->first_ctrl == 0) { + info->first_ctrl = 1; + info->num_ctrls = 1; + debug("First DDR controller disabled\n"); + return; + } + + if (!ddr1_used && info->first_ctrl + info->num_ctrls > 1) { + info->num_ctrls = 1; + debug("Second DDR controller disabled\n"); + } +#endif +} diff --git a/include/fsl_ddr.h b/include/fsl_ddr.h index 1ac092bb92..9aaf6b334c 100644 --- a/include/fsl_ddr.h +++ b/include/fsl_ddr.h @@ -131,6 +131,7 @@ void board_add_ram_info(int use_default); /* processor specific function */ void fsl_ddr_set_memctl_regs(const fsl_ddr_cfg_regs_t *regs, unsigned int ctrl_num, int step); +void remove_unused_controllers(fsl_ddr_info_t *info); /* board specific function */ int fsl_ddr_get_dimm_params(dimm_params_t *pdimm, |