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path: root/drivers/ddr/fsl/mpc85xx_ddr_gen3.c
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Diffstat (limited to 'drivers/ddr/fsl/mpc85xx_ddr_gen3.c')
-rw-r--r--drivers/ddr/fsl/mpc85xx_ddr_gen3.c67
1 files changed, 25 insertions, 42 deletions
diff --git a/drivers/ddr/fsl/mpc85xx_ddr_gen3.c b/drivers/ddr/fsl/mpc85xx_ddr_gen3.c
index 4d5572ef21..8f4d01ad85 100644
--- a/drivers/ddr/fsl/mpc85xx_ddr_gen3.c
+++ b/drivers/ddr/fsl/mpc85xx_ddr_gen3.c
@@ -15,8 +15,6 @@
#error Invalid setting for CONFIG_CHIP_SELECTS_PER_CTRL
#endif
-DECLARE_GLOBAL_DATA_PTR;
-
/*
* regs has the to-be-set values for DDR controller registers
* ctrl_num is the DDR controller number
@@ -44,16 +42,6 @@ void fsl_ddr_set_memctl_regs(const fsl_ddr_cfg_regs_t *regs,
u32 save1, save2;
#endif
-#ifdef CONFIG_DEEP_SLEEP
- const ccsr_gur_t *gur = (void __iomem *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
- bool sleep_flag = 0;
-#endif
-
-#ifdef CONFIG_DEEP_SLEEP
- if (in_be32(&gur->scrtsr[0]) & (1 << 3))
- sleep_flag = 1;
-#endif
-
switch (ctrl_num) {
case 0:
ddr = (void *)CONFIG_SYS_FSL_DDR_ADDR;
@@ -130,13 +118,6 @@ void fsl_ddr_set_memctl_regs(const fsl_ddr_cfg_regs_t *regs,
out_be32(&ddr->timing_cfg_0, regs->timing_cfg_0);
out_be32(&ddr->timing_cfg_1, regs->timing_cfg_1);
out_be32(&ddr->timing_cfg_2, regs->timing_cfg_2);
-#ifdef CONFIG_DEEP_SLEEP
- if (sleep_flag)
- out_be32(&ddr->sdram_cfg_2,
- regs->ddr_sdram_cfg_2 & ~SDRAM_CFG2_D_INIT);
- else
-#endif
- out_be32(&ddr->sdram_cfg_2, regs->ddr_sdram_cfg_2);
out_be32(&ddr->sdram_mode, regs->ddr_sdram_mode);
out_be32(&ddr->sdram_mode_2, regs->ddr_sdram_mode_2);
out_be32(&ddr->sdram_mode_3, regs->ddr_sdram_mode_3);
@@ -149,17 +130,6 @@ void fsl_ddr_set_memctl_regs(const fsl_ddr_cfg_regs_t *regs,
out_be32(&ddr->sdram_interval, regs->ddr_sdram_interval);
out_be32(&ddr->sdram_data_init, regs->ddr_data_init);
out_be32(&ddr->sdram_clk_cntl, regs->ddr_sdram_clk_cntl);
-#ifdef CONFIG_DEEP_SLEEP
- if (sleep_flag) {
- out_be32(&ddr->init_addr, 0);
- out_be32(&ddr->init_ext_addr, (1 << 31));
- } else
-#endif
- {
- out_be32(&ddr->init_addr, regs->ddr_init_addr);
- out_be32(&ddr->init_ext_addr, regs->ddr_init_ext_addr);
- }
-
out_be32(&ddr->timing_cfg_4, regs->timing_cfg_4);
out_be32(&ddr->timing_cfg_5, regs->timing_cfg_5);
out_be32(&ddr->ddr_zq_cntl, regs->ddr_zq_cntl);
@@ -180,7 +150,24 @@ void fsl_ddr_set_memctl_regs(const fsl_ddr_cfg_regs_t *regs,
out_be32(&ddr->ddr_sdram_rcw_1, regs->ddr_sdram_rcw_1);
out_be32(&ddr->ddr_sdram_rcw_2, regs->ddr_sdram_rcw_2);
out_be32(&ddr->ddr_cdr1, regs->ddr_cdr1);
- out_be32(&ddr->ddr_cdr2, regs->ddr_cdr2);
+#ifdef CONFIG_DEEP_SLEEP
+ if (is_warm_boot()) {
+ out_be32(&ddr->sdram_cfg_2,
+ regs->ddr_sdram_cfg_2 & ~SDRAM_CFG2_D_INIT);
+ out_be32(&ddr->init_addr, CONFIG_SYS_SDRAM_BASE);
+ out_be32(&ddr->init_ext_addr, DDR_INIT_ADDR_EXT_UIA);
+
+ /* DRAM VRef will not be trained */
+ out_be32(&ddr->ddr_cdr2,
+ regs->ddr_cdr2 & ~DDR_CDR2_VREF_TRAIN_EN);
+ } else
+#endif
+ {
+ out_be32(&ddr->sdram_cfg_2, regs->ddr_sdram_cfg_2);
+ out_be32(&ddr->init_addr, regs->ddr_init_addr);
+ out_be32(&ddr->init_ext_addr, regs->ddr_init_ext_addr);
+ out_be32(&ddr->ddr_cdr2, regs->ddr_cdr2);
+ }
out_be32(&ddr->err_disable, regs->err_disable);
out_be32(&ddr->err_int_en, regs->err_int_en);
for (i = 0; i < 32; i++) {
@@ -400,21 +387,17 @@ step2:
asm volatile("sync;isync");
#ifdef CONFIG_DEEP_SLEEP
- if (sleep_flag) {
+ if (is_warm_boot()) {
/* enter self-refresh */
- setbits_be32(&ddr->sdram_cfg_2, (1 << 31));
+ setbits_be32(&ddr->sdram_cfg_2, SDRAM_CFG2_FRC_SR);
/* do board specific memory setup */
board_mem_sleep_setup();
- }
-#endif
-
- /* Let the controller go */
-#ifdef CONFIG_DEEP_SLEEP
- if (sleep_flag)
temp_sdram_cfg = (in_be32(&ddr->sdram_cfg) | SDRAM_CFG_BI);
- else
+ } else
#endif
temp_sdram_cfg = (in_be32(&ddr->sdram_cfg) & ~SDRAM_CFG_BI);
+
+ /* Let the controller go */
out_be32(&ddr->sdram_cfg, temp_sdram_cfg | SDRAM_CFG_MEM_EN);
asm volatile("sync;isync");
@@ -566,8 +549,8 @@ step2:
}
#endif /* CONFIG_SYS_FSL_ERRATUM_DDR111_DDR134 */
#ifdef CONFIG_DEEP_SLEEP
- if (sleep_flag)
+ if (is_warm_boot())
/* exit self-refresh */
- clrbits_be32(&ddr->sdram_cfg_2, (1 << 31));
+ clrbits_be32(&ddr->sdram_cfg_2, SDRAM_CFG2_FRC_SR);
#endif
}
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