X-Git-Url: https://git.librecmc.org/?a=blobdiff_plain;f=drivers%2Fddr%2Ffsl%2Futil.c;h=ac4f8d2732d770334e250aa86dc5d866ec80efed;hb=c05ed00afb95fa5237f16962fccf5810437317bf;hp=58b519b4036aca64690bf9cd2e261b03934898ae;hpb=1454ba8e56d88a8b95ac8050cde2c07c651cd0ae;p=oweals%2Fu-boot.git diff --git a/drivers/ddr/fsl/util.c b/drivers/ddr/fsl/util.c index 58b519b403..ac4f8d2732 100644 --- a/drivers/ddr/fsl/util.c +++ b/drivers/ddr/fsl/util.c @@ -1,9 +1,6 @@ +// SPDX-License-Identifier: GPL-2.0 /* * Copyright 2008-2014 Freescale Semiconductor, Inc. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * Version 2 as published by the Free Software Foundation. */ #include @@ -11,10 +8,16 @@ #include #endif #include +#include #include #include +#include #include +#if defined(CONFIG_FSL_LSCH2) || defined(CONFIG_FSL_LSCH3) || \ + defined(CONFIG_ARM) +#include +#endif /* To avoid 64-bit full-divides, we factor this here */ #define ULL_2E12 2000000000000ULL @@ -23,12 +26,34 @@ #define ULL_8FS 0xFFFFFFFFULL -u32 fsl_ddr_get_version(void) +u32 fsl_ddr_get_version(unsigned int ctrl_num) { struct ccsr_ddr __iomem *ddr; u32 ver_major_minor_errata; - ddr = (void *)_DDR_ADDR; + switch (ctrl_num) { + case 0: + ddr = (void *)CONFIG_SYS_FSL_DDR_ADDR; + break; +#if defined(CONFIG_SYS_FSL_DDR2_ADDR) && (CONFIG_SYS_NUM_DDR_CTLRS > 1) + case 1: + ddr = (void *)CONFIG_SYS_FSL_DDR2_ADDR; + break; +#endif +#if defined(CONFIG_SYS_FSL_DDR3_ADDR) && (CONFIG_SYS_NUM_DDR_CTLRS > 2) + case 2: + ddr = (void *)CONFIG_SYS_FSL_DDR3_ADDR; + break; +#endif +#if defined(CONFIG_SYS_FSL_DDR4_ADDR) && (CONFIG_SYS_NUM_DDR_CTLRS > 3) + case 3: + ddr = (void *)CONFIG_SYS_FSL_DDR4_ADDR; + break; +#endif + default: + printf("%s unexpected ctrl_num = %u\n", __func__, ctrl_num); + return 0; + } ver_major_minor_errata = (ddr_in32(&ddr->ip_rev1) & 0xFFFF) << 8; ver_major_minor_errata |= (ddr_in32(&ddr->ip_rev2) & 0xFF00) >> 8; @@ -43,9 +68,9 @@ u32 fsl_ddr_get_version(void) * propagation, compute a suitably rounded mclk_ps to compute * a working memory controller configuration. */ -unsigned int get_memory_clk_period_ps(void) +unsigned int get_memory_clk_period_ps(const unsigned int ctrl_num) { - unsigned int data_rate = get_ddr_freq(0); + unsigned int data_rate = get_ddr_freq(ctrl_num); unsigned int result; /* Round to nearest 10ps, being careful about 64-bit multiply/divide */ @@ -59,10 +84,10 @@ unsigned int get_memory_clk_period_ps(void) } /* Convert picoseconds into DRAM clock cycles (rounding up if needed). */ -unsigned int picos_to_mclk(unsigned int picos) +unsigned int picos_to_mclk(const unsigned int ctrl_num, unsigned int picos) { unsigned long long clks, clks_rem; - unsigned long data_rate = get_ddr_freq(0); + unsigned long data_rate = get_ddr_freq(ctrl_num); /* Short circuit for zero picos */ if (!picos) @@ -88,9 +113,9 @@ unsigned int picos_to_mclk(unsigned int picos) return (unsigned int) clks; } -unsigned int mclk_to_picos(unsigned int mclk) +unsigned int mclk_to_picos(const unsigned int ctrl_num, unsigned int mclk) { - return get_memory_clk_period_ps() * mclk; + return get_memory_clk_period_ps(ctrl_num) * mclk; } #ifdef CONFIG_PPC @@ -154,23 +179,23 @@ void print_ddr_info(unsigned int start_ctrl) struct ccsr_ddr __iomem *ddr = (struct ccsr_ddr __iomem *)(CONFIG_SYS_FSL_DDR_ADDR); -#if defined(CONFIG_E6500) && (CONFIG_NUM_DDR_CONTROLLERS == 3) +#if defined(CONFIG_E6500) && (CONFIG_SYS_NUM_DDR_CTLRS == 3) u32 *mcintl3r = (void *) (CONFIG_SYS_IMMR + 0x18004); #endif -#if (CONFIG_NUM_DDR_CONTROLLERS > 1) +#if (CONFIG_SYS_NUM_DDR_CTLRS > 1) uint32_t cs0_config = ddr_in32(&ddr->cs0_config); #endif uint32_t sdram_cfg = ddr_in32(&ddr->sdram_cfg); int cas_lat; -#if CONFIG_NUM_DDR_CONTROLLERS >= 2 +#if CONFIG_SYS_NUM_DDR_CTLRS >= 2 if ((!(sdram_cfg & SDRAM_CFG_MEM_EN)) || (start_ctrl == 1)) { ddr = (void __iomem *)CONFIG_SYS_FSL_DDR2_ADDR; sdram_cfg = ddr_in32(&ddr->sdram_cfg); } #endif -#if CONFIG_NUM_DDR_CONTROLLERS >= 3 +#if CONFIG_SYS_NUM_DDR_CTLRS >= 3 if ((!(sdram_cfg & SDRAM_CFG_MEM_EN)) || (start_ctrl == 2)) { ddr = (void __iomem *)CONFIG_SYS_FSL_DDR3_ADDR; @@ -212,7 +237,7 @@ void print_ddr_info(unsigned int start_ctrl) /* Calculate CAS latency based on timing cfg values */ cas_lat = ((ddr_in32(&ddr->timing_cfg_1) >> 16) & 0xf); - if (fsl_ddr_get_version() <= 0x40400) + if (fsl_ddr_get_version(0) <= 0x40400) cas_lat += 1; else cas_lat += 2; @@ -226,7 +251,7 @@ void print_ddr_info(unsigned int start_ctrl) else puts(", ECC off)"); -#if (CONFIG_NUM_DDR_CONTROLLERS == 3) +#if (CONFIG_SYS_NUM_DDR_CTLRS == 3) #ifdef CONFIG_E6500 if (*mcintl3r & 0x80000000) { puts("\n"); @@ -248,7 +273,7 @@ void print_ddr_info(unsigned int start_ctrl) } #endif #endif -#if (CONFIG_NUM_DDR_CONTROLLERS >= 2) +#if (CONFIG_SYS_NUM_DDR_CTLRS >= 2) if ((cs0_config & 0x20000000) && (start_ctrl == 0)) { puts("\n"); puts(" DDR Controller Interleaving Mode: "); @@ -308,3 +333,98 @@ void board_add_ram_info(int use_default) { detail_board_ddr_info(); } + +#ifdef CONFIG_FSL_DDR_SYNC_REFRESH +#define DDRC_DEBUG20_INIT_DONE 0x80000000 +#define DDRC_DEBUG2_RF 0x00000040 +void fsl_ddr_sync_memctl_refresh(unsigned int first_ctrl, + unsigned int last_ctrl) +{ + unsigned int i; + u32 ddrc_debug20; + u32 ddrc_debug2[CONFIG_SYS_NUM_DDR_CTLRS] = {}; + u32 *ddrc_debug2_p[CONFIG_SYS_NUM_DDR_CTLRS] = {}; + struct ccsr_ddr __iomem *ddr; + + for (i = first_ctrl; i <= last_ctrl; i++) { + switch (i) { + case 0: + ddr = (void *)CONFIG_SYS_FSL_DDR_ADDR; + break; +#if defined(CONFIG_SYS_FSL_DDR2_ADDR) && (CONFIG_SYS_NUM_DDR_CTLRS > 1) + case 1: + ddr = (void *)CONFIG_SYS_FSL_DDR2_ADDR; + break; +#endif +#if defined(CONFIG_SYS_FSL_DDR3_ADDR) && (CONFIG_SYS_NUM_DDR_CTLRS > 2) + case 2: + ddr = (void *)CONFIG_SYS_FSL_DDR3_ADDR; + break; +#endif +#if defined(CONFIG_SYS_FSL_DDR4_ADDR) && (CONFIG_SYS_NUM_DDR_CTLRS > 3) + case 3: + ddr = (void *)CONFIG_SYS_FSL_DDR4_ADDR; + break; +#endif + default: + printf("%s unexpected ctrl = %u\n", __func__, i); + return; + } + ddrc_debug20 = ddr_in32(&ddr->debug[19]); + ddrc_debug2_p[i] = &ddr->debug[1]; + while (!(ddrc_debug20 & DDRC_DEBUG20_INIT_DONE)) { + /* keep polling until DDRC init is done */ + udelay(100); + ddrc_debug20 = ddr_in32(&ddr->debug[19]); + } + ddrc_debug2[i] = ddr_in32(&ddr->debug[1]) | DDRC_DEBUG2_RF; + } + /* + * Sync refresh + * This is put together to make sure the refresh reqeusts are sent + * closely to each other. + */ + for (i = first_ctrl; i <= last_ctrl; i++) + 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_SYS_FSL_HAS_CCN504 + 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 +}