From a7787b78503a2c67fe02f1fcdd995fb6f3830f4b Mon Sep 17 00:00:00 2001 From: Tang Yuantian Date: Fri, 21 Nov 2014 11:17:15 +0800 Subject: 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 Reviewed-by: York Sun --- drivers/ddr/fsl/arm_ddr_gen3.c | 45 +++++++++++++++++++++---- drivers/ddr/fsl/fsl_ddr_gen4.c | 44 ++++++++++++++++++++++--- drivers/ddr/fsl/mpc85xx_ddr_gen3.c | 67 ++++++++++++++------------------------ 3 files changed, 103 insertions(+), 53 deletions(-) (limited to 'drivers/ddr/fsl') 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 } -- cgit v1.2.1