xref: /openbmc/u-boot/drivers/ddr/fsl/fsl_ddr_gen4.c (revision a46b1852de967f8a7de26e0b46e864c794a18c16)
134e026f9SYork Sun /*
29f9f0093SYork Sun  * Copyright 2014-2015 Freescale Semiconductor, Inc.
334e026f9SYork Sun  *
434e026f9SYork Sun  * SPDX-License-Identifier:	GPL-2.0+
534e026f9SYork Sun  */
634e026f9SYork Sun 
734e026f9SYork Sun #include <common.h>
834e026f9SYork Sun #include <asm/io.h>
934e026f9SYork Sun #include <fsl_ddr_sdram.h>
1034e026f9SYork Sun #include <asm/processor.h>
118340e7acSYork Sun #include <fsl_immap.h>
1234e026f9SYork Sun #include <fsl_ddr.h>
13*a46b1852SShengzhou Liu #include <fsl_errata.h>
1434e026f9SYork Sun 
159f9f0093SYork Sun #ifdef CONFIG_SYS_FSL_ERRATUM_A008511
169f9f0093SYork Sun static void set_wait_for_bits_clear(void *ptr, u32 value, u32 bits)
179f9f0093SYork Sun {
189f9f0093SYork Sun 	int timeout = 1000;
199f9f0093SYork Sun 
209f9f0093SYork Sun 	ddr_out32(ptr, value);
219f9f0093SYork Sun 
229f9f0093SYork Sun 	while (ddr_in32(ptr) & bits) {
239f9f0093SYork Sun 		udelay(100);
249f9f0093SYork Sun 		timeout--;
259f9f0093SYork Sun 	}
269f9f0093SYork Sun 	if (timeout <= 0)
279f9f0093SYork Sun 		puts("Error: A007865 wait for clear timeout.\n");
289f9f0093SYork Sun }
299f9f0093SYork Sun #endif /* CONFIG_SYS_FSL_ERRATUM_A008511 */
309f9f0093SYork Sun 
3134e026f9SYork Sun #if (CONFIG_CHIP_SELECTS_PER_CTRL > 4)
3234e026f9SYork Sun #error Invalid setting for CONFIG_CHIP_SELECTS_PER_CTRL
3334e026f9SYork Sun #endif
3434e026f9SYork Sun 
3534e026f9SYork Sun /*
3634e026f9SYork Sun  * regs has the to-be-set values for DDR controller registers
3734e026f9SYork Sun  * ctrl_num is the DDR controller number
3834e026f9SYork Sun  * step: 0 goes through the initialization in one pass
3934e026f9SYork Sun  *       1 sets registers and returns before enabling controller
4034e026f9SYork Sun  *       2 resumes from step 1 and continues to initialize
4134e026f9SYork Sun  * Dividing the initialization to two steps to deassert DDR reset signal
4234e026f9SYork Sun  * to comply with JEDEC specs for RDIMMs.
4334e026f9SYork Sun  */
4434e026f9SYork Sun void fsl_ddr_set_memctl_regs(const fsl_ddr_cfg_regs_t *regs,
4534e026f9SYork Sun 			     unsigned int ctrl_num, int step)
4634e026f9SYork Sun {
4734e026f9SYork Sun 	unsigned int i, bus_width;
4834e026f9SYork Sun 	struct ccsr_ddr __iomem *ddr;
4934e026f9SYork Sun 	u32 temp_sdram_cfg;
5034e026f9SYork Sun 	u32 total_gb_size_per_controller;
5134e026f9SYork Sun 	int timeout;
5249fd1f3fSYork Sun #if defined(CONFIG_SYS_FSL_ERRATUM_A008336) || \
5349fd1f3fSYork Sun 	defined(CONFIG_SYS_FSL_ERRATUM_A008514)
549955b4abSYork Sun 	u32 *eddrtqcr1;
559955b4abSYork Sun #endif
569f9f0093SYork Sun #ifdef CONFIG_SYS_FSL_ERRATUM_A008511
579f9f0093SYork Sun 	u32 temp32, mr6;
587cc07998SYork Sun 	u32 vref_seq1[3] = {0x80, 0x96, 0x16};	/* for range 1 */
597cc07998SYork Sun 	u32 vref_seq2[3] = {0xc0, 0xf0, 0x70};	/* for range 2 */
607cc07998SYork Sun 	u32 *vref_seq = vref_seq1;
619f9f0093SYork Sun #endif
624516ff81SYork Sun #ifdef CONFIG_FSL_DDR_BIST
634516ff81SYork Sun 	u32 mtcr, err_detect, err_sbe;
644516ff81SYork Sun 	u32 cs0_bnds, cs1_bnds, cs2_bnds, cs3_bnds, cs0_config;
654516ff81SYork Sun #endif
664516ff81SYork Sun #ifdef CONFIG_FSL_DDR_BIST
674516ff81SYork Sun 	char buffer[CONFIG_SYS_CBSIZE];
684516ff81SYork Sun #endif
6934e026f9SYork Sun 
7034e026f9SYork Sun 	switch (ctrl_num) {
7134e026f9SYork Sun 	case 0:
7234e026f9SYork Sun 		ddr = (void *)CONFIG_SYS_FSL_DDR_ADDR;
7349fd1f3fSYork Sun #if defined(CONFIG_SYS_FSL_ERRATUM_A008336) || \
7449fd1f3fSYork Sun 	defined(CONFIG_SYS_FSL_ERRATUM_A008514)
759955b4abSYork Sun 		eddrtqcr1 = (void *)CONFIG_SYS_FSL_DCSR_DDR_ADDR + 0x800;
769955b4abSYork Sun #endif
7734e026f9SYork Sun 		break;
7834e026f9SYork Sun #if defined(CONFIG_SYS_FSL_DDR2_ADDR) && (CONFIG_NUM_DDR_CONTROLLERS > 1)
7934e026f9SYork Sun 	case 1:
8034e026f9SYork Sun 		ddr = (void *)CONFIG_SYS_FSL_DDR2_ADDR;
8149fd1f3fSYork Sun #if defined(CONFIG_SYS_FSL_ERRATUM_A008336) || \
8249fd1f3fSYork Sun 	defined(CONFIG_SYS_FSL_ERRATUM_A008514)
839955b4abSYork Sun 		eddrtqcr1 = (void *)CONFIG_SYS_FSL_DCSR_DDR2_ADDR + 0x800;
849955b4abSYork Sun #endif
8534e026f9SYork Sun 		break;
8634e026f9SYork Sun #endif
8734e026f9SYork Sun #if defined(CONFIG_SYS_FSL_DDR3_ADDR) && (CONFIG_NUM_DDR_CONTROLLERS > 2)
8834e026f9SYork Sun 	case 2:
8934e026f9SYork Sun 		ddr = (void *)CONFIG_SYS_FSL_DDR3_ADDR;
9049fd1f3fSYork Sun #if defined(CONFIG_SYS_FSL_ERRATUM_A008336) || \
9149fd1f3fSYork Sun 	defined(CONFIG_SYS_FSL_ERRATUM_A008514)
929955b4abSYork Sun 		eddrtqcr1 = (void *)CONFIG_SYS_FSL_DCSR_DDR3_ADDR + 0x800;
939955b4abSYork Sun #endif
9434e026f9SYork Sun 		break;
9534e026f9SYork Sun #endif
9634e026f9SYork Sun #if defined(CONFIG_SYS_FSL_DDR4_ADDR) && (CONFIG_NUM_DDR_CONTROLLERS > 3)
9734e026f9SYork Sun 	case 3:
9834e026f9SYork Sun 		ddr = (void *)CONFIG_SYS_FSL_DDR4_ADDR;
9949fd1f3fSYork Sun #if defined(CONFIG_SYS_FSL_ERRATUM_A008336) || \
10049fd1f3fSYork Sun 	defined(CONFIG_SYS_FSL_ERRATUM_A008514)
1019955b4abSYork Sun 		eddrtqcr1 = (void *)CONFIG_SYS_FSL_DCSR_DDR4_ADDR + 0x800;
1029955b4abSYork Sun #endif
10334e026f9SYork Sun 		break;
10434e026f9SYork Sun #endif
10534e026f9SYork Sun 	default:
10634e026f9SYork Sun 		printf("%s unexpected ctrl_num = %u\n", __func__, ctrl_num);
10734e026f9SYork Sun 		return;
10834e026f9SYork Sun 	}
10934e026f9SYork Sun 
11034e026f9SYork Sun 	if (step == 2)
11134e026f9SYork Sun 		goto step2;
11234e026f9SYork Sun 
1139955b4abSYork Sun #ifdef CONFIG_SYS_FSL_ERRATUM_A008336
11406b53010SPrabhakar Kushwaha #if defined(CONFIG_LS2080A) || defined(CONFIG_LS2085A)
1159955b4abSYork Sun 	/* A008336 only applies to general DDR controllers */
1169955b4abSYork Sun 	if ((ctrl_num == 0) || (ctrl_num == 1))
1179955b4abSYork Sun #endif
1189955b4abSYork Sun 		ddr_out32(eddrtqcr1, 0x63b30002);
1199955b4abSYork Sun #endif
12049fd1f3fSYork Sun #ifdef CONFIG_SYS_FSL_ERRATUM_A008514
12106b53010SPrabhakar Kushwaha #if defined(CONFIG_LS2080A) || defined(CONFIG_LS2085A)
12249fd1f3fSYork Sun 	/* A008514 only applies to DP-DDR controler */
12349fd1f3fSYork Sun 	if (ctrl_num == 2)
12449fd1f3fSYork Sun #endif
12549fd1f3fSYork Sun 		ddr_out32(eddrtqcr1, 0x63b20002);
12649fd1f3fSYork Sun #endif
12734e026f9SYork Sun 	if (regs->ddr_eor)
12834e026f9SYork Sun 		ddr_out32(&ddr->eor, regs->ddr_eor);
12934e026f9SYork Sun 
13034e026f9SYork Sun 	ddr_out32(&ddr->sdram_clk_cntl, regs->ddr_sdram_clk_cntl);
13134e026f9SYork Sun 
13234e026f9SYork Sun 	for (i = 0; i < CONFIG_CHIP_SELECTS_PER_CTRL; i++) {
13334e026f9SYork Sun 		if (i == 0) {
13434e026f9SYork Sun 			ddr_out32(&ddr->cs0_bnds, regs->cs[i].bnds);
13534e026f9SYork Sun 			ddr_out32(&ddr->cs0_config, regs->cs[i].config);
13634e026f9SYork Sun 			ddr_out32(&ddr->cs0_config_2, regs->cs[i].config_2);
13734e026f9SYork Sun 
13834e026f9SYork Sun 		} else if (i == 1) {
13934e026f9SYork Sun 			ddr_out32(&ddr->cs1_bnds, regs->cs[i].bnds);
14034e026f9SYork Sun 			ddr_out32(&ddr->cs1_config, regs->cs[i].config);
14134e026f9SYork Sun 			ddr_out32(&ddr->cs1_config_2, regs->cs[i].config_2);
14234e026f9SYork Sun 
14334e026f9SYork Sun 		} else if (i == 2) {
14434e026f9SYork Sun 			ddr_out32(&ddr->cs2_bnds, regs->cs[i].bnds);
14534e026f9SYork Sun 			ddr_out32(&ddr->cs2_config, regs->cs[i].config);
14634e026f9SYork Sun 			ddr_out32(&ddr->cs2_config_2, regs->cs[i].config_2);
14734e026f9SYork Sun 
14834e026f9SYork Sun 		} else if (i == 3) {
14934e026f9SYork Sun 			ddr_out32(&ddr->cs3_bnds, regs->cs[i].bnds);
15034e026f9SYork Sun 			ddr_out32(&ddr->cs3_config, regs->cs[i].config);
15134e026f9SYork Sun 			ddr_out32(&ddr->cs3_config_2, regs->cs[i].config_2);
15234e026f9SYork Sun 		}
15334e026f9SYork Sun 	}
15434e026f9SYork Sun 
15534e026f9SYork Sun 	ddr_out32(&ddr->timing_cfg_3, regs->timing_cfg_3);
15634e026f9SYork Sun 	ddr_out32(&ddr->timing_cfg_0, regs->timing_cfg_0);
15734e026f9SYork Sun 	ddr_out32(&ddr->timing_cfg_1, regs->timing_cfg_1);
15834e026f9SYork Sun 	ddr_out32(&ddr->timing_cfg_2, regs->timing_cfg_2);
15934e026f9SYork Sun 	ddr_out32(&ddr->timing_cfg_4, regs->timing_cfg_4);
16034e026f9SYork Sun 	ddr_out32(&ddr->timing_cfg_5, regs->timing_cfg_5);
16134e026f9SYork Sun 	ddr_out32(&ddr->timing_cfg_6, regs->timing_cfg_6);
16234e026f9SYork Sun 	ddr_out32(&ddr->timing_cfg_7, regs->timing_cfg_7);
16334e026f9SYork Sun 	ddr_out32(&ddr->timing_cfg_8, regs->timing_cfg_8);
16434e026f9SYork Sun 	ddr_out32(&ddr->timing_cfg_9, regs->timing_cfg_9);
16534e026f9SYork Sun 	ddr_out32(&ddr->ddr_zq_cntl, regs->ddr_zq_cntl);
16634e026f9SYork Sun 	ddr_out32(&ddr->dq_map_0, regs->dq_map_0);
16734e026f9SYork Sun 	ddr_out32(&ddr->dq_map_1, regs->dq_map_1);
16834e026f9SYork Sun 	ddr_out32(&ddr->dq_map_2, regs->dq_map_2);
16934e026f9SYork Sun 	ddr_out32(&ddr->dq_map_3, regs->dq_map_3);
17034e026f9SYork Sun 	ddr_out32(&ddr->sdram_cfg_3, regs->ddr_sdram_cfg_3);
17134e026f9SYork Sun 	ddr_out32(&ddr->sdram_mode, regs->ddr_sdram_mode);
17234e026f9SYork Sun 	ddr_out32(&ddr->sdram_mode_2, regs->ddr_sdram_mode_2);
17334e026f9SYork Sun 	ddr_out32(&ddr->sdram_mode_3, regs->ddr_sdram_mode_3);
17434e026f9SYork Sun 	ddr_out32(&ddr->sdram_mode_4, regs->ddr_sdram_mode_4);
17534e026f9SYork Sun 	ddr_out32(&ddr->sdram_mode_5, regs->ddr_sdram_mode_5);
17634e026f9SYork Sun 	ddr_out32(&ddr->sdram_mode_6, regs->ddr_sdram_mode_6);
17734e026f9SYork Sun 	ddr_out32(&ddr->sdram_mode_7, regs->ddr_sdram_mode_7);
17834e026f9SYork Sun 	ddr_out32(&ddr->sdram_mode_8, regs->ddr_sdram_mode_8);
17934e026f9SYork Sun 	ddr_out32(&ddr->sdram_mode_9, regs->ddr_sdram_mode_9);
18034e026f9SYork Sun 	ddr_out32(&ddr->sdram_mode_10, regs->ddr_sdram_mode_10);
18134e026f9SYork Sun 	ddr_out32(&ddr->sdram_mode_11, regs->ddr_sdram_mode_11);
18234e026f9SYork Sun 	ddr_out32(&ddr->sdram_mode_12, regs->ddr_sdram_mode_12);
18334e026f9SYork Sun 	ddr_out32(&ddr->sdram_mode_13, regs->ddr_sdram_mode_13);
18434e026f9SYork Sun 	ddr_out32(&ddr->sdram_mode_14, regs->ddr_sdram_mode_14);
18534e026f9SYork Sun 	ddr_out32(&ddr->sdram_mode_15, regs->ddr_sdram_mode_15);
18634e026f9SYork Sun 	ddr_out32(&ddr->sdram_mode_16, regs->ddr_sdram_mode_16);
18734e026f9SYork Sun 	ddr_out32(&ddr->sdram_md_cntl, regs->ddr_sdram_md_cntl);
18834e026f9SYork Sun 	ddr_out32(&ddr->sdram_interval, regs->ddr_sdram_interval);
18934e026f9SYork Sun 	ddr_out32(&ddr->sdram_data_init, regs->ddr_data_init);
19034e026f9SYork Sun 	ddr_out32(&ddr->ddr_wrlvl_cntl, regs->ddr_wrlvl_cntl);
19134e026f9SYork Sun #ifndef CONFIG_SYS_FSL_DDR_EMU
19234e026f9SYork Sun 	/*
19334e026f9SYork Sun 	 * Skip these two registers if running on emulator
19434e026f9SYork Sun 	 * because emulator doesn't have skew between bytes.
19534e026f9SYork Sun 	 */
19634e026f9SYork Sun 
19734e026f9SYork Sun 	if (regs->ddr_wrlvl_cntl_2)
19834e026f9SYork Sun 		ddr_out32(&ddr->ddr_wrlvl_cntl_2, regs->ddr_wrlvl_cntl_2);
19934e026f9SYork Sun 	if (regs->ddr_wrlvl_cntl_3)
20034e026f9SYork Sun 		ddr_out32(&ddr->ddr_wrlvl_cntl_3, regs->ddr_wrlvl_cntl_3);
20134e026f9SYork Sun #endif
20234e026f9SYork Sun 
20334e026f9SYork Sun 	ddr_out32(&ddr->ddr_sr_cntr, regs->ddr_sr_cntr);
20434e026f9SYork Sun 	ddr_out32(&ddr->ddr_sdram_rcw_1, regs->ddr_sdram_rcw_1);
20534e026f9SYork Sun 	ddr_out32(&ddr->ddr_sdram_rcw_2, regs->ddr_sdram_rcw_2);
20634e026f9SYork Sun 	ddr_out32(&ddr->ddr_sdram_rcw_3, regs->ddr_sdram_rcw_3);
20734e026f9SYork Sun 	ddr_out32(&ddr->ddr_sdram_rcw_4, regs->ddr_sdram_rcw_4);
20834e026f9SYork Sun 	ddr_out32(&ddr->ddr_sdram_rcw_5, regs->ddr_sdram_rcw_5);
20934e026f9SYork Sun 	ddr_out32(&ddr->ddr_sdram_rcw_6, regs->ddr_sdram_rcw_6);
21034e026f9SYork Sun 	ddr_out32(&ddr->ddr_cdr1, regs->ddr_cdr1);
211a7787b78STang Yuantian #ifdef CONFIG_DEEP_SLEEP
212a7787b78STang Yuantian 	if (is_warm_boot()) {
213a7787b78STang Yuantian 		ddr_out32(&ddr->sdram_cfg_2,
214a7787b78STang Yuantian 			  regs->ddr_sdram_cfg_2 & ~SDRAM_CFG2_D_INIT);
215a7787b78STang Yuantian 		ddr_out32(&ddr->init_addr, CONFIG_SYS_SDRAM_BASE);
216a7787b78STang Yuantian 		ddr_out32(&ddr->init_ext_addr, DDR_INIT_ADDR_EXT_UIA);
217a7787b78STang Yuantian 
218a7787b78STang Yuantian 		/* DRAM VRef will not be trained */
219a7787b78STang Yuantian 		ddr_out32(&ddr->ddr_cdr2,
220a7787b78STang Yuantian 			  regs->ddr_cdr2 & ~DDR_CDR2_VREF_TRAIN_EN);
221a7787b78STang Yuantian 	} else
222a7787b78STang Yuantian #endif
223a7787b78STang Yuantian 	{
224a7787b78STang Yuantian 		ddr_out32(&ddr->sdram_cfg_2, regs->ddr_sdram_cfg_2);
225a7787b78STang Yuantian 		ddr_out32(&ddr->init_addr, regs->ddr_init_addr);
226a7787b78STang Yuantian 		ddr_out32(&ddr->init_ext_addr, regs->ddr_init_ext_addr);
22734e026f9SYork Sun 		ddr_out32(&ddr->ddr_cdr2, regs->ddr_cdr2);
228a7787b78STang Yuantian 	}
22934e026f9SYork Sun 	ddr_out32(&ddr->err_disable, regs->err_disable);
23034e026f9SYork Sun 	ddr_out32(&ddr->err_int_en, regs->err_int_en);
23134e026f9SYork Sun 	for (i = 0; i < 32; i++) {
23234e026f9SYork Sun 		if (regs->debug[i]) {
23334e026f9SYork Sun 			debug("Write to debug_%d as %08x\n",
23434e026f9SYork Sun 			      i+1, regs->debug[i]);
23534e026f9SYork Sun 			ddr_out32(&ddr->debug[i], regs->debug[i]);
23634e026f9SYork Sun 		}
23734e026f9SYork Sun 	}
238dda3b610SYork Sun #ifdef CONFIG_SYS_FSL_ERRATUM_A008378
239dda3b610SYork Sun 	/* Erratum applies when accumulated ECC is used, or DBI is enabled */
240dda3b610SYork Sun #define IS_ACC_ECC_EN(v) ((v) & 0x4)
241dda3b610SYork Sun #define IS_DBI(v) ((((v) >> 12) & 0x3) == 0x2)
242*a46b1852SShengzhou Liu 	if (has_erratum_a008378()) {
243dda3b610SYork Sun 		if (IS_ACC_ECC_EN(regs->ddr_sdram_cfg) ||
244dda3b610SYork Sun 		    IS_DBI(regs->ddr_sdram_cfg_3))
245*a46b1852SShengzhou Liu 			ddr_setbits32(&ddr->debug[28], 0x9 << 20);
246*a46b1852SShengzhou Liu 	}
247dda3b610SYork Sun #endif
24834e026f9SYork Sun 
2499f9f0093SYork Sun #ifdef CONFIG_SYS_FSL_ERRATUM_A008511
2509f9f0093SYork Sun 	/* Part 1 of 2 */
2519f9f0093SYork Sun 	/* This erraum only applies to verion 5.2.0 */
2529f9f0093SYork Sun 	if (fsl_ddr_get_version(ctrl_num) == 0x50200) {
2539f9f0093SYork Sun 		/* Disable DRAM VRef training */
2549f9f0093SYork Sun 		ddr_out32(&ddr->ddr_cdr2,
2559f9f0093SYork Sun 			  regs->ddr_cdr2 & ~DDR_CDR2_VREF_TRAIN_EN);
2569f9f0093SYork Sun 		/* Disable deskew */
2579f9f0093SYork Sun 		ddr_out32(&ddr->debug[28], 0x400);
2589f9f0093SYork Sun 		/* Disable D_INIT */
2599f9f0093SYork Sun 		ddr_out32(&ddr->sdram_cfg_2,
2609f9f0093SYork Sun 			  regs->ddr_sdram_cfg_2 & ~SDRAM_CFG2_D_INIT);
2619f9f0093SYork Sun 		ddr_out32(&ddr->debug[25], 0x9000);
2629f9f0093SYork Sun 	}
2639f9f0093SYork Sun #endif
26434e026f9SYork Sun 	/*
26534e026f9SYork Sun 	 * For RDIMMs, JEDEC spec requires clocks to be stable before reset is
26634e026f9SYork Sun 	 * deasserted. Clocks start when any chip select is enabled and clock
26734e026f9SYork Sun 	 * control register is set. Because all DDR components are connected to
26834e026f9SYork Sun 	 * one reset signal, this needs to be done in two steps. Step 1 is to
26934e026f9SYork Sun 	 * get the clocks started. Step 2 resumes after reset signal is
27034e026f9SYork Sun 	 * deasserted.
27134e026f9SYork Sun 	 */
27234e026f9SYork Sun 	if (step == 1) {
27334e026f9SYork Sun 		udelay(200);
27434e026f9SYork Sun 		return;
27534e026f9SYork Sun 	}
27634e026f9SYork Sun 
27734e026f9SYork Sun step2:
27834e026f9SYork Sun 	/* Set, but do not enable the memory */
27934e026f9SYork Sun 	temp_sdram_cfg = regs->ddr_sdram_cfg;
28034e026f9SYork Sun 	temp_sdram_cfg &= ~(SDRAM_CFG_MEM_EN);
28134e026f9SYork Sun 	ddr_out32(&ddr->sdram_cfg, temp_sdram_cfg);
28234e026f9SYork Sun 
28334e026f9SYork Sun 	/*
28434e026f9SYork Sun 	 * 500 painful micro-seconds must elapse between
28534e026f9SYork Sun 	 * the DDR clock setup and the DDR config enable.
28634e026f9SYork Sun 	 * DDR2 need 200 us, and DDR3 need 500 us from spec,
28734e026f9SYork Sun 	 * we choose the max, that is 500 us for all of case.
28834e026f9SYork Sun 	 */
28934e026f9SYork Sun 	udelay(500);
2908340e7acSYork Sun 	mb();
2918340e7acSYork Sun 	isb();
29234e026f9SYork Sun 
293a7787b78STang Yuantian #ifdef CONFIG_DEEP_SLEEP
294a7787b78STang Yuantian 	if (is_warm_boot()) {
295a7787b78STang Yuantian 		/* enter self-refresh */
296a7787b78STang Yuantian 		temp_sdram_cfg = ddr_in32(&ddr->sdram_cfg_2);
297a7787b78STang Yuantian 		temp_sdram_cfg |= SDRAM_CFG2_FRC_SR;
298a7787b78STang Yuantian 		ddr_out32(&ddr->sdram_cfg_2, temp_sdram_cfg);
299a7787b78STang Yuantian 		/* do board specific memory setup */
300a7787b78STang Yuantian 		board_mem_sleep_setup();
301a7787b78STang Yuantian 
302a7787b78STang Yuantian 		temp_sdram_cfg = (ddr_in32(&ddr->sdram_cfg) | SDRAM_CFG_BI);
303a7787b78STang Yuantian 	} else
304a7787b78STang Yuantian #endif
30534e026f9SYork Sun 		temp_sdram_cfg = ddr_in32(&ddr->sdram_cfg) & ~SDRAM_CFG_BI;
306a7787b78STang Yuantian 	/* Let the controller go */
30734e026f9SYork Sun 	ddr_out32(&ddr->sdram_cfg, temp_sdram_cfg | SDRAM_CFG_MEM_EN);
3088340e7acSYork Sun 	mb();
3098340e7acSYork Sun 	isb();
31034e026f9SYork Sun 
3119f9f0093SYork Sun #ifdef CONFIG_SYS_FSL_ERRATUM_A008511
3129f9f0093SYork Sun 	/* Part 2 of 2 */
3139f9f0093SYork Sun 	/* This erraum only applies to verion 5.2.0 */
3149f9f0093SYork Sun 	if (fsl_ddr_get_version(ctrl_num) == 0x50200) {
3159f9f0093SYork Sun 		/* Wait for idle */
3167cc07998SYork Sun 		timeout = 40;
3179f9f0093SYork Sun 		while (!(ddr_in32(&ddr->debug[1]) & 0x2) &&
3189f9f0093SYork Sun 		       (timeout > 0)) {
3197cc07998SYork Sun 			udelay(1000);
3209f9f0093SYork Sun 			timeout--;
3219f9f0093SYork Sun 		}
3229f9f0093SYork Sun 		if (timeout <= 0) {
3239f9f0093SYork Sun 			printf("Controler %d timeout, debug_2 = %x\n",
3249f9f0093SYork Sun 			       ctrl_num, ddr_in32(&ddr->debug[1]));
3259f9f0093SYork Sun 		}
3267cc07998SYork Sun 
3277cc07998SYork Sun 		/* The vref setting sequence is different for range 2 */
3287cc07998SYork Sun 		if (regs->ddr_cdr2 & DDR_CDR2_VREF_RANGE_2)
3297cc07998SYork Sun 			vref_seq = vref_seq2;
3307cc07998SYork Sun 
3319f9f0093SYork Sun 		/* Set VREF */
3329f9f0093SYork Sun 		for (i = 0; i < CONFIG_CHIP_SELECTS_PER_CTRL; i++) {
3339f9f0093SYork Sun 			if (!(regs->cs[i].config & SDRAM_CS_CONFIG_EN))
3349f9f0093SYork Sun 				continue;
3359f9f0093SYork Sun 
3369f9f0093SYork Sun 			mr6 = (regs->ddr_sdram_mode_10 >> 16)		|
3379f9f0093SYork Sun 				 MD_CNTL_MD_EN				|
3389f9f0093SYork Sun 				 MD_CNTL_CS_SEL(i)			|
3399f9f0093SYork Sun 				 MD_CNTL_MD_SEL(6)			|
3409f9f0093SYork Sun 				 0x00200000;
3417cc07998SYork Sun 			temp32 = mr6 | vref_seq[0];
3429f9f0093SYork Sun 			set_wait_for_bits_clear(&ddr->sdram_md_cntl,
3439f9f0093SYork Sun 						temp32, MD_CNTL_MD_EN);
3449f9f0093SYork Sun 			udelay(1);
3459f9f0093SYork Sun 			debug("MR6 = 0x%08x\n", temp32);
3467cc07998SYork Sun 			temp32 = mr6 | vref_seq[1];
3479f9f0093SYork Sun 			set_wait_for_bits_clear(&ddr->sdram_md_cntl,
3489f9f0093SYork Sun 						temp32, MD_CNTL_MD_EN);
3499f9f0093SYork Sun 			udelay(1);
3509f9f0093SYork Sun 			debug("MR6 = 0x%08x\n", temp32);
3517cc07998SYork Sun 			temp32 = mr6 | vref_seq[2];
3529f9f0093SYork Sun 			set_wait_for_bits_clear(&ddr->sdram_md_cntl,
3539f9f0093SYork Sun 						temp32, MD_CNTL_MD_EN);
3549f9f0093SYork Sun 			udelay(1);
3559f9f0093SYork Sun 			debug("MR6 = 0x%08x\n", temp32);
3569f9f0093SYork Sun 		}
3579f9f0093SYork Sun 		ddr_out32(&ddr->sdram_md_cntl, 0);
3589f9f0093SYork Sun 		ddr_out32(&ddr->debug[28], 0);		/* Enable deskew */
3599f9f0093SYork Sun 		ddr_out32(&ddr->debug[1], 0x400);	/* restart deskew */
3609f9f0093SYork Sun 		/* wait for idle */
3617cc07998SYork Sun 		timeout = 40;
3629f9f0093SYork Sun 		while (!(ddr_in32(&ddr->debug[1]) & 0x2) &&
3639f9f0093SYork Sun 		       (timeout > 0)) {
3647cc07998SYork Sun 			udelay(1000);
3659f9f0093SYork Sun 			timeout--;
3669f9f0093SYork Sun 		}
3679f9f0093SYork Sun 		if (timeout <= 0) {
3689f9f0093SYork Sun 			printf("Controler %d timeout, debug_2 = %x\n",
3699f9f0093SYork Sun 			       ctrl_num, ddr_in32(&ddr->debug[1]));
3709f9f0093SYork Sun 		}
3719f9f0093SYork Sun 		/* Restore D_INIT */
3729f9f0093SYork Sun 		ddr_out32(&ddr->sdram_cfg_2, regs->ddr_sdram_cfg_2);
3739f9f0093SYork Sun 	}
3749f9f0093SYork Sun #endif /* CONFIG_SYS_FSL_ERRATUM_A008511 */
3759f9f0093SYork Sun 
37634e026f9SYork Sun 	total_gb_size_per_controller = 0;
37734e026f9SYork Sun 	for (i = 0; i < CONFIG_CHIP_SELECTS_PER_CTRL; i++) {
37834e026f9SYork Sun 		if (!(regs->cs[i].config & 0x80000000))
37934e026f9SYork Sun 			continue;
38034e026f9SYork Sun 		total_gb_size_per_controller += 1 << (
38134e026f9SYork Sun 			((regs->cs[i].config >> 14) & 0x3) + 2 +
38234e026f9SYork Sun 			((regs->cs[i].config >> 8) & 0x7) + 12 +
38334e026f9SYork Sun 			((regs->cs[i].config >> 4) & 0x3) + 0 +
38434e026f9SYork Sun 			((regs->cs[i].config >> 0) & 0x7) + 8 +
38534e026f9SYork Sun 			3 - ((regs->ddr_sdram_cfg >> 19) & 0x3) -
38634e026f9SYork Sun 			26);			/* minus 26 (count of 64M) */
38734e026f9SYork Sun 	}
38834e026f9SYork Sun 	if (fsl_ddr_get_intl3r() & 0x80000000)	/* 3-way interleaving */
38934e026f9SYork Sun 		total_gb_size_per_controller *= 3;
39034e026f9SYork Sun 	else if (regs->cs[0].config & 0x20000000) /* 2-way interleaving */
39134e026f9SYork Sun 		total_gb_size_per_controller <<= 1;
39234e026f9SYork Sun 	/*
39334e026f9SYork Sun 	 * total memory / bus width = transactions needed
39434e026f9SYork Sun 	 * transactions needed / data rate = seconds
39534e026f9SYork Sun 	 * to add plenty of buffer, double the time
39634e026f9SYork Sun 	 * For example, 2GB on 666MT/s 64-bit bus takes about 402ms
39734e026f9SYork Sun 	 * Let's wait for 800ms
39834e026f9SYork Sun 	 */
399f80d6472SYork Sun 	bus_width = 3 - ((ddr_in32(&ddr->sdram_cfg) & SDRAM_CFG_DBW_MASK)
40034e026f9SYork Sun 			>> SDRAM_CFG_DBW_SHIFT);
40134e026f9SYork Sun 	timeout = ((total_gb_size_per_controller << (6 - bus_width)) * 100 /
40203e664d8SYork Sun 		(get_ddr_freq(ctrl_num) >> 20)) << 2;
40334e026f9SYork Sun 	total_gb_size_per_controller >>= 4;	/* shift down to gb size */
40434e026f9SYork Sun 	debug("total %d GB\n", total_gb_size_per_controller);
40534e026f9SYork Sun 	debug("Need to wait up to %d * 10ms\n", timeout);
40634e026f9SYork Sun 
40734e026f9SYork Sun 	/* Poll DDR_SDRAM_CFG_2[D_INIT] bit until auto-data init is done.  */
40834e026f9SYork Sun 	while ((ddr_in32(&ddr->sdram_cfg_2) & SDRAM_CFG2_D_INIT) &&
40934e026f9SYork Sun 		(timeout >= 0)) {
41034e026f9SYork Sun 		udelay(10000);		/* throttle polling rate */
41134e026f9SYork Sun 		timeout--;
41234e026f9SYork Sun 	}
41334e026f9SYork Sun 
41434e026f9SYork Sun 	if (timeout <= 0)
41534e026f9SYork Sun 		printf("Waiting for D_INIT timeout. Memory may not work.\n");
416a7787b78STang Yuantian #ifdef CONFIG_DEEP_SLEEP
417a7787b78STang Yuantian 	if (is_warm_boot()) {
418a7787b78STang Yuantian 		/* exit self-refresh */
419a7787b78STang Yuantian 		temp_sdram_cfg = ddr_in32(&ddr->sdram_cfg_2);
420a7787b78STang Yuantian 		temp_sdram_cfg &= ~SDRAM_CFG2_FRC_SR;
421a7787b78STang Yuantian 		ddr_out32(&ddr->sdram_cfg_2, temp_sdram_cfg);
422a7787b78STang Yuantian 	}
423a7787b78STang Yuantian #endif
4244516ff81SYork Sun 
4254516ff81SYork Sun #ifdef CONFIG_FSL_DDR_BIST
4264516ff81SYork Sun #define BIST_PATTERN1	0xFFFFFFFF
4274516ff81SYork Sun #define BIST_PATTERN2	0x0
4284516ff81SYork Sun #define BIST_CR		0x80010000
4294516ff81SYork Sun #define BIST_CR_EN	0x80000000
4304516ff81SYork Sun #define BIST_CR_STAT	0x00000001
4314516ff81SYork Sun #define CTLR_INTLV_MASK	0x20000000
4324516ff81SYork Sun 	/* Perform build-in test on memory. Three-way interleaving is not yet
4334516ff81SYork Sun 	 * supported by this code. */
4344516ff81SYork Sun 	if (getenv_f("ddr_bist", buffer, CONFIG_SYS_CBSIZE) >= 0) {
4354516ff81SYork Sun 		puts("Running BIST test. This will take a while...");
4364516ff81SYork Sun 		cs0_config = ddr_in32(&ddr->cs0_config);
437da305b9fSYork Sun 		cs0_bnds = ddr_in32(&ddr->cs0_bnds);
438da305b9fSYork Sun 		cs1_bnds = ddr_in32(&ddr->cs1_bnds);
439da305b9fSYork Sun 		cs2_bnds = ddr_in32(&ddr->cs2_bnds);
440da305b9fSYork Sun 		cs3_bnds = ddr_in32(&ddr->cs3_bnds);
4414516ff81SYork Sun 		if (cs0_config & CTLR_INTLV_MASK) {
4424516ff81SYork Sun 			/* set bnds to non-interleaving */
443da305b9fSYork Sun 			ddr_out32(&ddr->cs0_bnds, (cs0_bnds & 0xfffefffe) >> 1);
444da305b9fSYork Sun 			ddr_out32(&ddr->cs1_bnds, (cs1_bnds & 0xfffefffe) >> 1);
445da305b9fSYork Sun 			ddr_out32(&ddr->cs2_bnds, (cs2_bnds & 0xfffefffe) >> 1);
446da305b9fSYork Sun 			ddr_out32(&ddr->cs3_bnds, (cs3_bnds & 0xfffefffe) >> 1);
4474516ff81SYork Sun 		}
4484516ff81SYork Sun 		ddr_out32(&ddr->mtp1, BIST_PATTERN1);
4494516ff81SYork Sun 		ddr_out32(&ddr->mtp2, BIST_PATTERN1);
4504516ff81SYork Sun 		ddr_out32(&ddr->mtp3, BIST_PATTERN2);
4514516ff81SYork Sun 		ddr_out32(&ddr->mtp4, BIST_PATTERN2);
4524516ff81SYork Sun 		ddr_out32(&ddr->mtp5, BIST_PATTERN1);
4534516ff81SYork Sun 		ddr_out32(&ddr->mtp6, BIST_PATTERN1);
4544516ff81SYork Sun 		ddr_out32(&ddr->mtp7, BIST_PATTERN2);
4554516ff81SYork Sun 		ddr_out32(&ddr->mtp8, BIST_PATTERN2);
4564516ff81SYork Sun 		ddr_out32(&ddr->mtp9, BIST_PATTERN1);
4574516ff81SYork Sun 		ddr_out32(&ddr->mtp10, BIST_PATTERN2);
4584516ff81SYork Sun 		mtcr = BIST_CR;
4594516ff81SYork Sun 		ddr_out32(&ddr->mtcr, mtcr);
4604516ff81SYork Sun 		timeout = 100;
4614516ff81SYork Sun 		while (timeout > 0 && (mtcr & BIST_CR_EN)) {
4624516ff81SYork Sun 			mdelay(1000);
4634516ff81SYork Sun 			timeout--;
4644516ff81SYork Sun 			mtcr = ddr_in32(&ddr->mtcr);
4654516ff81SYork Sun 		}
4664516ff81SYork Sun 		if (timeout <= 0)
4674516ff81SYork Sun 			puts("Timeout\n");
4684516ff81SYork Sun 		else
4694516ff81SYork Sun 			puts("Done\n");
4704516ff81SYork Sun 		err_detect = ddr_in32(&ddr->err_detect);
4714516ff81SYork Sun 		err_sbe = ddr_in32(&ddr->err_sbe);
4724516ff81SYork Sun 		if (mtcr & BIST_CR_STAT) {
4734516ff81SYork Sun 			printf("BIST test failed on controller %d.\n",
4744516ff81SYork Sun 			       ctrl_num);
4754516ff81SYork Sun 		}
4764516ff81SYork Sun 		if (err_detect || (err_sbe & 0xffff)) {
4774516ff81SYork Sun 			printf("ECC error detected on controller %d.\n",
4784516ff81SYork Sun 			       ctrl_num);
4794516ff81SYork Sun 		}
4804516ff81SYork Sun 
4814516ff81SYork Sun 		if (cs0_config & CTLR_INTLV_MASK) {
4824516ff81SYork Sun 			/* restore bnds registers */
483da305b9fSYork Sun 			ddr_out32(&ddr->cs0_bnds, cs0_bnds);
484da305b9fSYork Sun 			ddr_out32(&ddr->cs1_bnds, cs1_bnds);
485da305b9fSYork Sun 			ddr_out32(&ddr->cs2_bnds, cs2_bnds);
486da305b9fSYork Sun 			ddr_out32(&ddr->cs3_bnds, cs3_bnds);
4874516ff81SYork Sun 		}
4884516ff81SYork Sun 	}
4894516ff81SYork Sun #endif
49034e026f9SYork Sun }
491