diff options
Diffstat (limited to 'drivers/ddr/imx/imx8m/ddrphy_utils.c')
| -rw-r--r-- | drivers/ddr/imx/imx8m/ddrphy_utils.c | 360 |
1 files changed, 0 insertions, 360 deletions
diff --git a/drivers/ddr/imx/imx8m/ddrphy_utils.c b/drivers/ddr/imx/imx8m/ddrphy_utils.c deleted file mode 100644 index 326b92d784..0000000000 --- a/drivers/ddr/imx/imx8m/ddrphy_utils.c +++ /dev/null @@ -1,360 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0+ -/* - * Copyright 2018 NXP - */ - -#include <common.h> -#include <errno.h> -#include <log.h> -#include <asm/io.h> -#include <asm/arch/ddr.h> -#include <asm/arch/clock.h> -#include <asm/arch/ddr.h> -#include <asm/arch/lpddr4_define.h> -#include <asm/arch/sys_proto.h> - -static unsigned int g_cdd_rr_max[4]; -static unsigned int g_cdd_rw_max[4]; -static unsigned int g_cdd_wr_max[4]; -static unsigned int g_cdd_ww_max[4]; - -static inline void poll_pmu_message_ready(void) -{ - unsigned int reg; - - do { - reg = reg32_read(IP2APB_DDRPHY_IPS_BASE_ADDR(0) + 4 * 0xd0004); - } while (reg & 0x1); -} - -static inline void ack_pmu_message_receive(void) -{ - unsigned int reg; - - reg32_write(IP2APB_DDRPHY_IPS_BASE_ADDR(0) + 4 * 0xd0031, 0x0); - - do { - reg = reg32_read(IP2APB_DDRPHY_IPS_BASE_ADDR(0) + 4 * 0xd0004); - } while (!(reg & 0x1)); - - reg32_write(IP2APB_DDRPHY_IPS_BASE_ADDR(0) + 4 * 0xd0031, 0x1); -} - -static inline unsigned int get_mail(void) -{ - unsigned int reg; - - poll_pmu_message_ready(); - - reg = reg32_read(IP2APB_DDRPHY_IPS_BASE_ADDR(0) + 4 * 0xd0032); - - ack_pmu_message_receive(); - - return reg; -} - -static inline unsigned int get_stream_message(void) -{ - unsigned int reg, reg2; - - poll_pmu_message_ready(); - - reg = reg32_read(IP2APB_DDRPHY_IPS_BASE_ADDR(0) + 4 * 0xd0032); - - reg2 = reg32_read(IP2APB_DDRPHY_IPS_BASE_ADDR(0) + 4 * 0xd0034); - - reg2 = (reg2 << 16) | reg; - - ack_pmu_message_receive(); - - return reg2; -} - -static inline void decode_major_message(unsigned int mail) -{ - debug("[PMU Major message = 0x%08x]\n", mail); -} - -static inline void decode_streaming_message(void) -{ - unsigned int string_index, arg __maybe_unused; - int i = 0; - - string_index = get_stream_message(); - debug("PMU String index = 0x%08x\n", string_index); - while (i < (string_index & 0xffff)) { - arg = get_stream_message(); - debug("arg[%d] = 0x%08x\n", i, arg); - i++; - } - - debug("\n"); -} - -int wait_ddrphy_training_complete(void) -{ - unsigned int mail; - - while (1) { - mail = get_mail(); - decode_major_message(mail); - if (mail == 0x08) { - decode_streaming_message(); - } else if (mail == 0x07) { - debug("Training PASS\n"); - return 0; - } else if (mail == 0xff) { - printf("Training FAILED\n"); - return -1; - } - } -} - -void ddrphy_init_set_dfi_clk(unsigned int drate) -{ - switch (drate) { - case 4000: - dram_pll_init(MHZ(1000)); - dram_disable_bypass(); - break; - case 3200: - dram_pll_init(MHZ(800)); - dram_disable_bypass(); - break; - case 3000: - dram_pll_init(MHZ(750)); - dram_disable_bypass(); - break; - case 2400: - dram_pll_init(MHZ(600)); - dram_disable_bypass(); - break; - case 1600: - dram_pll_init(MHZ(400)); - dram_disable_bypass(); - break; - case 1066: - dram_pll_init(MHZ(266)); - dram_disable_bypass(); - break; - case 667: - dram_pll_init(MHZ(167)); - dram_disable_bypass(); - break; - case 400: - dram_enable_bypass(MHZ(400)); - break; - case 100: - dram_enable_bypass(MHZ(100)); - break; - default: - return; - } -} - -void ddrphy_init_read_msg_block(enum fw_type type) -{ -} - -void lpddr4_mr_write(unsigned int mr_rank, unsigned int mr_addr, - unsigned int mr_data) -{ - unsigned int tmp; - /* - * 1. Poll MRSTAT.mr_wr_busy until it is 0. - * This checks that there is no outstanding MR transaction. - * No writes should be performed to MRCTRL0 and MRCTRL1 if - * MRSTAT.mr_wr_busy = 1. - */ - do { - tmp = reg32_read(DDRC_MRSTAT(0)); - } while (tmp & 0x1); - /* - * 2. Write the MRCTRL0.mr_type, MRCTRL0.mr_addr, MRCTRL0.mr_rank and - * (for MRWs) MRCTRL1.mr_data to define the MR transaction. - */ - reg32_write(DDRC_MRCTRL0(0), (mr_rank << 4)); - reg32_write(DDRC_MRCTRL1(0), (mr_addr << 8) | mr_data); - reg32setbit(DDRC_MRCTRL0(0), 31); -} - -unsigned int lpddr4_mr_read(unsigned int mr_rank, unsigned int mr_addr) -{ - unsigned int tmp; - - reg32_write(DRC_PERF_MON_MRR0_DAT(0), 0x1); - do { - tmp = reg32_read(DDRC_MRSTAT(0)); - } while (tmp & 0x1); - - reg32_write(DDRC_MRCTRL0(0), (mr_rank << 4) | 0x1); - reg32_write(DDRC_MRCTRL1(0), (mr_addr << 8)); - reg32setbit(DDRC_MRCTRL0(0), 31); - do { - tmp = reg32_read(DRC_PERF_MON_MRR0_DAT(0)); - } while ((tmp & 0x8) == 0); - tmp = reg32_read(DRC_PERF_MON_MRR1_DAT(0)); - tmp = tmp & 0xff; - reg32_write(DRC_PERF_MON_MRR0_DAT(0), 0x4); - - return tmp; -} - -unsigned int look_for_max(unsigned int data[], - unsigned int addr_start, unsigned int addr_end) -{ - unsigned int i, imax = 0; - - for (i = addr_start; i <= addr_end; i++) { - if (((data[i] >> 7) == 0) && (data[i] > imax)) - imax = data[i]; - } - - return imax; -} - -void get_trained_CDD(u32 fsp) -{ - unsigned int i, ddr_type, tmp; - unsigned int cdd_cha[12], cdd_chb[12]; - unsigned int cdd_cha_rr_max, cdd_cha_rw_max, cdd_cha_wr_max, cdd_cha_ww_max; - unsigned int cdd_chb_rr_max, cdd_chb_rw_max, cdd_chb_wr_max, cdd_chb_ww_max; - - ddr_type = reg32_read(DDRC_MSTR(0)) & 0x3f; - if (ddr_type == 0x20) { - for (i = 0; i < 6; i++) { - tmp = reg32_read(IP2APB_DDRPHY_IPS_BASE_ADDR(0) + (0x54013 + i) * 4); - cdd_cha[i * 2] = tmp & 0xff; - cdd_cha[i * 2 + 1] = (tmp >> 8) & 0xff; - } - - for (i = 0; i < 7; i++) { - tmp = reg32_read(IP2APB_DDRPHY_IPS_BASE_ADDR(0) + (0x5402c + i) * 4); - if (i == 0) { - cdd_cha[0] = (tmp >> 8) & 0xff; - } else if (i == 6) { - cdd_cha[11] = tmp & 0xff; - } else { - cdd_chb[i * 2 - 1] = tmp & 0xff; - cdd_chb[i * 2] = (tmp >> 8) & 0xff; - } - } - - cdd_cha_rr_max = look_for_max(cdd_cha, 0, 1); - cdd_cha_rw_max = look_for_max(cdd_cha, 2, 5); - cdd_cha_wr_max = look_for_max(cdd_cha, 6, 9); - cdd_cha_ww_max = look_for_max(cdd_cha, 10, 11); - cdd_chb_rr_max = look_for_max(cdd_chb, 0, 1); - cdd_chb_rw_max = look_for_max(cdd_chb, 2, 5); - cdd_chb_wr_max = look_for_max(cdd_chb, 6, 9); - cdd_chb_ww_max = look_for_max(cdd_chb, 10, 11); - g_cdd_rr_max[fsp] = cdd_cha_rr_max > cdd_chb_rr_max ? cdd_cha_rr_max : cdd_chb_rr_max; - g_cdd_rw_max[fsp] = cdd_cha_rw_max > cdd_chb_rw_max ? cdd_cha_rw_max : cdd_chb_rw_max; - g_cdd_wr_max[fsp] = cdd_cha_wr_max > cdd_chb_wr_max ? cdd_cha_wr_max : cdd_chb_wr_max; - g_cdd_ww_max[fsp] = cdd_cha_ww_max > cdd_chb_ww_max ? cdd_cha_ww_max : cdd_chb_ww_max; - } else { - unsigned int ddr4_cdd[64]; - - for (i = 0; i < 29; i++) { - tmp = reg32_read(IP2APB_DDRPHY_IPS_BASE_ADDR(0) + (0x54012 + i) * 4); - ddr4_cdd[i * 2] = tmp & 0xff; - ddr4_cdd[i * 2 + 1] = (tmp >> 8) & 0xff; - } - - g_cdd_rr_max[fsp] = look_for_max(ddr4_cdd, 1, 12); - g_cdd_ww_max[fsp] = look_for_max(ddr4_cdd, 13, 24); - g_cdd_rw_max[fsp] = look_for_max(ddr4_cdd, 25, 40); - g_cdd_wr_max[fsp] = look_for_max(ddr4_cdd, 41, 56); - } -} - -void update_umctl2_rank_space_setting(unsigned int pstat_num) -{ - unsigned int i, ddr_type; - unsigned int addr_slot, rdata, tmp, tmp_t; - unsigned int ddrc_w2r, ddrc_r2w, ddrc_wr_gap, ddrc_rd_gap; - - ddr_type = reg32_read(DDRC_MSTR(0)) & 0x3f; - for (i = 0; i < pstat_num; i++) { - addr_slot = i ? (i + 1) * 0x1000 : 0; - if (ddr_type == 0x20) { - /* update r2w:[13:8], w2r:[5:0] */ - rdata = reg32_read(DDRC_DRAMTMG2(0) + addr_slot); - ddrc_w2r = rdata & 0x3f; - if (is_imx8mp()) - tmp = ddrc_w2r + (g_cdd_wr_max[i] >> 1); - else - tmp = ddrc_w2r + (g_cdd_wr_max[i] >> 1) + 1; - ddrc_w2r = (tmp > 0x3f) ? 0x3f : tmp; - - ddrc_r2w = (rdata >> 8) & 0x3f; - if (is_imx8mp()) - tmp = ddrc_r2w + (g_cdd_rw_max[i] >> 1); - else - tmp = ddrc_r2w + (g_cdd_rw_max[i] >> 1) + 1; - ddrc_r2w = (tmp > 0x3f) ? 0x3f : tmp; - - tmp_t = (rdata & 0xffffc0c0) | (ddrc_r2w << 8) | ddrc_w2r; - reg32_write((DDRC_DRAMTMG2(0) + addr_slot), tmp_t); - } else { - /* update w2r:[5:0] */ - rdata = reg32_read(DDRC_DRAMTMG9(0) + addr_slot); - ddrc_w2r = rdata & 0x3f; - if (is_imx8mp()) - tmp = ddrc_w2r + (g_cdd_wr_max[i] >> 1); - else - tmp = ddrc_w2r + (g_cdd_wr_max[i] >> 1) + 1; - ddrc_w2r = (tmp > 0x3f) ? 0x3f : tmp; - tmp_t = (rdata & 0xffffffc0) | ddrc_w2r; - reg32_write((DDRC_DRAMTMG9(0) + addr_slot), tmp_t); - - /* update r2w:[13:8] */ - rdata = reg32_read(DDRC_DRAMTMG2(0) + addr_slot); - ddrc_r2w = (rdata >> 8) & 0x3f; - if (is_imx8mp()) - tmp = ddrc_r2w + (g_cdd_rw_max[i] >> 1); - else - tmp = ddrc_r2w + (g_cdd_rw_max[i] >> 1) + 1; - ddrc_r2w = (tmp > 0x3f) ? 0x3f : tmp; - - tmp_t = (rdata & 0xffffc0ff) | (ddrc_r2w << 8); - reg32_write((DDRC_DRAMTMG2(0) + addr_slot), tmp_t); - } - - if (!is_imx8mq()) { - /* update rankctl: wr_gap:11:8; rd:gap:7:4; quasi-dymic, doc wrong(static) */ - rdata = reg32_read(DDRC_RANKCTL(0) + addr_slot); - ddrc_wr_gap = (rdata >> 8) & 0xf; - if (is_imx8mp()) - tmp = ddrc_wr_gap + (g_cdd_ww_max[i] >> 1); - else - tmp = ddrc_wr_gap + (g_cdd_ww_max[i] >> 1) + 1; - ddrc_wr_gap = (tmp > 0xf) ? 0xf : tmp; - - ddrc_rd_gap = (rdata >> 4) & 0xf; - if (is_imx8mp()) - tmp = ddrc_rd_gap + (g_cdd_rr_max[i] >> 1); - else - tmp = ddrc_rd_gap + (g_cdd_rr_max[i] >> 1) + 1; - ddrc_rd_gap = (tmp > 0xf) ? 0xf : tmp; - - tmp_t = (rdata & 0xfffff00f) | (ddrc_wr_gap << 8) | (ddrc_rd_gap << 4); - reg32_write((DDRC_RANKCTL(0) + addr_slot), tmp_t); - } - } - - if (is_imx8mq()) { - /* update rankctl: wr_gap:11:8; rd:gap:7:4; quasi-dymic, doc wrong(static) */ - rdata = reg32_read(DDRC_RANKCTL(0)); - ddrc_wr_gap = (rdata >> 8) & 0xf; - tmp = ddrc_wr_gap + (g_cdd_ww_max[0] >> 1) + 1; - ddrc_wr_gap = (tmp > 0xf) ? 0xf : tmp; - - ddrc_rd_gap = (rdata >> 4) & 0xf; - tmp = ddrc_rd_gap + (g_cdd_rr_max[0] >> 1) + 1; - ddrc_rd_gap = (tmp > 0xf) ? 0xf : tmp; - - tmp_t = (rdata & 0xfffff00f) | (ddrc_wr_gap << 8) | (ddrc_rd_gap << 4); - reg32_write(DDRC_RANKCTL(0), tmp_t); - } -} |