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authorTang Yuantian <Yuantian.Tang@freescale.com>2014-11-21 11:17:15 +0800
committerYork Sun <yorksun@freescale.com>2014-12-11 09:41:18 -0800
commita7787b78503a2c67fe02f1fcdd995fb6f3830f4b (patch)
tree26184f7b53fe7c7771f9de0a3505ece5054fa543 /drivers/ddr/fsl
parentda5ce448c731321ba8cad5502a35c669b5e1bf8c (diff)
downloadtalos-obmc-uboot-a7787b78503a2c67fe02f1fcdd995fb6f3830f4b.tar.gz
talos-obmc-uboot-a7787b78503a2c67fe02f1fcdd995fb6f3830f4b.zip
fsl/sleep: updated the deep sleep framework for QorIQ platforms
With the introducing of generic board and ARM-based cores, current deep sleep framework doesn't work anymore. This patch will convert the current framework to adapt this change. Basically it does: 1. Converts all the Freescale's DDR driver to support deep sleep. 2. Added basic framework support for ARM-based and PPC-based cores separately. Signed-off-by: Tang Yuantian <Yuantian.Tang@freescale.com> Reviewed-by: York Sun <yorksun@freescale.com>
Diffstat (limited to 'drivers/ddr/fsl')
-rw-r--r--drivers/ddr/fsl/arm_ddr_gen3.c45
-rw-r--r--drivers/ddr/fsl/fsl_ddr_gen4.c44
-rw-r--r--drivers/ddr/fsl/mpc85xx_ddr_gen3.c67
3 files changed, 103 insertions, 53 deletions
diff --git a/drivers/ddr/fsl/arm_ddr_gen3.c b/drivers/ddr/fsl/arm_ddr_gen3.c
index 59f2fd6610..c139da6da9 100644
--- a/drivers/ddr/fsl/arm_ddr_gen3.c
+++ b/drivers/ddr/fsl/arm_ddr_gen3.c
@@ -92,7 +92,6 @@ void fsl_ddr_set_memctl_regs(const fsl_ddr_cfg_regs_t *regs,
ddr_out32(&ddr->timing_cfg_0, regs->timing_cfg_0);
ddr_out32(&ddr->timing_cfg_1, regs->timing_cfg_1);
ddr_out32(&ddr->timing_cfg_2, regs->timing_cfg_2);
- ddr_out32(&ddr->sdram_cfg_2, regs->ddr_sdram_cfg_2);
ddr_out32(&ddr->sdram_mode, regs->ddr_sdram_mode);
ddr_out32(&ddr->sdram_mode_2, regs->ddr_sdram_mode_2);
ddr_out32(&ddr->sdram_mode_3, regs->ddr_sdram_mode_3);
@@ -105,9 +104,6 @@ void fsl_ddr_set_memctl_regs(const fsl_ddr_cfg_regs_t *regs,
ddr_out32(&ddr->sdram_interval, regs->ddr_sdram_interval);
ddr_out32(&ddr->sdram_data_init, regs->ddr_data_init);
ddr_out32(&ddr->sdram_clk_cntl, regs->ddr_sdram_clk_cntl);
- ddr_out32(&ddr->init_addr, regs->ddr_init_addr);
- ddr_out32(&ddr->init_ext_addr, regs->ddr_init_ext_addr);
-
ddr_out32(&ddr->timing_cfg_4, regs->timing_cfg_4);
ddr_out32(&ddr->timing_cfg_5, regs->timing_cfg_5);
ddr_out32(&ddr->ddr_zq_cntl, regs->ddr_zq_cntl);
@@ -128,7 +124,24 @@ void fsl_ddr_set_memctl_regs(const fsl_ddr_cfg_regs_t *regs,
ddr_out32(&ddr->ddr_sdram_rcw_1, regs->ddr_sdram_rcw_1);
ddr_out32(&ddr->ddr_sdram_rcw_2, regs->ddr_sdram_rcw_2);
ddr_out32(&ddr->ddr_cdr1, regs->ddr_cdr1);
- ddr_out32(&ddr->ddr_cdr2, regs->ddr_cdr2);
+#ifdef CONFIG_DEEP_SLEEP
+ if (is_warm_boot()) {
+ ddr_out32(&ddr->sdram_cfg_2,
+ regs->ddr_sdram_cfg_2 & ~SDRAM_CFG2_D_INIT);
+ ddr_out32(&ddr->init_addr, CONFIG_SYS_SDRAM_BASE);
+ ddr_out32(&ddr->init_ext_addr, DDR_INIT_ADDR_EXT_UIA);
+
+ /* DRAM VRef will not be trained */
+ ddr_out32(&ddr->ddr_cdr2,
+ regs->ddr_cdr2 & ~DDR_CDR2_VREF_TRAIN_EN);
+ } else
+#endif
+ {
+ ddr_out32(&ddr->sdram_cfg_2, regs->ddr_sdram_cfg_2);
+ ddr_out32(&ddr->init_addr, regs->ddr_init_addr);
+ ddr_out32(&ddr->init_ext_addr, regs->ddr_init_ext_addr);
+ ddr_out32(&ddr->ddr_cdr2, regs->ddr_cdr2);
+ }
ddr_out32(&ddr->err_disable, regs->err_disable);
ddr_out32(&ddr->err_int_en, regs->err_int_en);
for (i = 0; i < 32; i++) {
@@ -167,8 +180,20 @@ step2:
udelay(500);
asm volatile("dsb sy;isb");
+#ifdef CONFIG_DEEP_SLEEP
+ if (is_warm_boot()) {
+ /* enter self-refresh */
+ temp_sdram_cfg = ddr_in32(&ddr->sdram_cfg_2);
+ temp_sdram_cfg |= SDRAM_CFG2_FRC_SR;
+ ddr_out32(&ddr->sdram_cfg_2, temp_sdram_cfg);
+ /* do board specific memory setup */
+ board_mem_sleep_setup();
+
+ temp_sdram_cfg = (ddr_in32(&ddr->sdram_cfg) | SDRAM_CFG_BI);
+ } else
+#endif
+ temp_sdram_cfg = ddr_in32(&ddr->sdram_cfg) & ~SDRAM_CFG_BI;
/* Let the controller go */
- temp_sdram_cfg = ddr_in32(&ddr->sdram_cfg) & ~SDRAM_CFG_BI;
ddr_out32(&ddr->sdram_cfg, temp_sdram_cfg | SDRAM_CFG_MEM_EN);
asm volatile("dsb sy;isb");
@@ -211,4 +236,12 @@ step2:
if (timeout <= 0)
printf("Waiting for D_INIT timeout. Memory may not work.\n");
+#ifdef CONFIG_DEEP_SLEEP
+ if (is_warm_boot()) {
+ /* exit self-refresh */
+ temp_sdram_cfg = ddr_in32(&ddr->sdram_cfg_2);
+ temp_sdram_cfg &= ~SDRAM_CFG2_FRC_SR;
+ ddr_out32(&ddr->sdram_cfg_2, temp_sdram_cfg);
+ }
+#endif
}
diff --git a/drivers/ddr/fsl/fsl_ddr_gen4.c b/drivers/ddr/fsl/fsl_ddr_gen4.c
index e024db9ee2..a3c01e7f1e 100644
--- a/drivers/ddr/fsl/fsl_ddr_gen4.c
+++ b/drivers/ddr/fsl/fsl_ddr_gen4.c
@@ -103,7 +103,6 @@ void fsl_ddr_set_memctl_regs(const fsl_ddr_cfg_regs_t *regs,
ddr_out32(&ddr->dq_map_1, regs->dq_map_1);
ddr_out32(&ddr->dq_map_2, regs->dq_map_2);
ddr_out32(&ddr->dq_map_3, regs->dq_map_3);
- ddr_out32(&ddr->sdram_cfg_2, regs->ddr_sdram_cfg_2);
ddr_out32(&ddr->sdram_cfg_3, regs->ddr_sdram_cfg_3);
ddr_out32(&ddr->sdram_mode, regs->ddr_sdram_mode);
ddr_out32(&ddr->sdram_mode_2, regs->ddr_sdram_mode_2);
@@ -124,8 +123,6 @@ void fsl_ddr_set_memctl_regs(const fsl_ddr_cfg_regs_t *regs,
ddr_out32(&ddr->sdram_md_cntl, regs->ddr_sdram_md_cntl);
ddr_out32(&ddr->sdram_interval, regs->ddr_sdram_interval);
ddr_out32(&ddr->sdram_data_init, regs->ddr_data_init);
- ddr_out32(&ddr->init_addr, regs->ddr_init_addr);
- ddr_out32(&ddr->init_ext_addr, regs->ddr_init_ext_addr);
ddr_out32(&ddr->ddr_wrlvl_cntl, regs->ddr_wrlvl_cntl);
#ifndef CONFIG_SYS_FSL_DDR_EMU
/*
@@ -147,7 +144,24 @@ void fsl_ddr_set_memctl_regs(const fsl_ddr_cfg_regs_t *regs,
ddr_out32(&ddr->ddr_sdram_rcw_5, regs->ddr_sdram_rcw_5);
ddr_out32(&ddr->ddr_sdram_rcw_6, regs->ddr_sdram_rcw_6);
ddr_out32(&ddr->ddr_cdr1, regs->ddr_cdr1);
- ddr_out32(&ddr->ddr_cdr2, regs->ddr_cdr2);
+#ifdef CONFIG_DEEP_SLEEP
+ if (is_warm_boot()) {
+ ddr_out32(&ddr->sdram_cfg_2,
+ regs->ddr_sdram_cfg_2 & ~SDRAM_CFG2_D_INIT);
+ ddr_out32(&ddr->init_addr, CONFIG_SYS_SDRAM_BASE);
+ ddr_out32(&ddr->init_ext_addr, DDR_INIT_ADDR_EXT_UIA);
+
+ /* DRAM VRef will not be trained */
+ ddr_out32(&ddr->ddr_cdr2,
+ regs->ddr_cdr2 & ~DDR_CDR2_VREF_TRAIN_EN);
+ } else
+#endif
+ {
+ ddr_out32(&ddr->sdram_cfg_2, regs->ddr_sdram_cfg_2);
+ ddr_out32(&ddr->init_addr, regs->ddr_init_addr);
+ ddr_out32(&ddr->init_ext_addr, regs->ddr_init_ext_addr);
+ ddr_out32(&ddr->ddr_cdr2, regs->ddr_cdr2);
+ }
ddr_out32(&ddr->err_disable, regs->err_disable);
ddr_out32(&ddr->err_int_en, regs->err_int_en);
for (i = 0; i < 32; i++) {
@@ -187,8 +201,20 @@ step2:
mb();
isb();
+#ifdef CONFIG_DEEP_SLEEP
+ if (is_warm_boot()) {
+ /* enter self-refresh */
+ temp_sdram_cfg = ddr_in32(&ddr->sdram_cfg_2);
+ temp_sdram_cfg |= SDRAM_CFG2_FRC_SR;
+ ddr_out32(&ddr->sdram_cfg_2, temp_sdram_cfg);
+ /* do board specific memory setup */
+ board_mem_sleep_setup();
+
+ temp_sdram_cfg = (ddr_in32(&ddr->sdram_cfg) | SDRAM_CFG_BI);
+ } else
+#endif
+ temp_sdram_cfg = ddr_in32(&ddr->sdram_cfg) & ~SDRAM_CFG_BI;
/* Let the controller go */
- temp_sdram_cfg = ddr_in32(&ddr->sdram_cfg) & ~SDRAM_CFG_BI;
ddr_out32(&ddr->sdram_cfg, temp_sdram_cfg | SDRAM_CFG_MEM_EN);
mb();
isb();
@@ -233,4 +259,12 @@ step2:
if (timeout <= 0)
printf("Waiting for D_INIT timeout. Memory may not work.\n");
+#ifdef CONFIG_DEEP_SLEEP
+ if (is_warm_boot()) {
+ /* exit self-refresh */
+ temp_sdram_cfg = ddr_in32(&ddr->sdram_cfg_2);
+ temp_sdram_cfg &= ~SDRAM_CFG2_FRC_SR;
+ ddr_out32(&ddr->sdram_cfg_2, temp_sdram_cfg);
+ }
+#endif
}
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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