From c7ea243cc095d6510e1a1e3a4969e787a9d41271 Mon Sep 17 00:00:00 2001 From: Sanchayan Maity Date: Wed, 15 Apr 2015 16:24:22 +0530 Subject: ARM: vf610: Move DDR3 initialization to imx-common In order to avoid code duplication, move the DDR3 initialization to the common place under imx-common. Currently ROW_DIFF and COL_DIFF can be chosen from the board file. The JEDEC timings are specified using a common ddr3_jedec_timings structure. Signed-off-by: Stefan Agner Signed-off-by: Sanchayan Maity --- arch/arm/imx-common/Makefile | 3 + arch/arm/imx-common/ddrmc-vf610.c | 278 ++++++++++++++++++++++++++++++++++++++ 2 files changed, 281 insertions(+) create mode 100644 arch/arm/imx-common/ddrmc-vf610.c (limited to 'arch/arm/imx-common') diff --git a/arch/arm/imx-common/Makefile b/arch/arm/imx-common/Makefile index 606482f7a3..b9f1ca4da9 100644 --- a/arch/arm/imx-common/Makefile +++ b/arch/arm/imx-common/Makefile @@ -22,6 +22,9 @@ ifeq ($(SOC),$(filter $(SOC),mx6)) obj-$(CONFIG_CMD_SATA) += sata.o obj-$(CONFIG_IMX_VIDEO_SKIP) += video.o endif +ifeq ($(SOC),$(filter $(SOC),vf610)) +obj-y += ddrmc-vf610.o +endif obj-$(CONFIG_CMD_BMODE) += cmd_bmode.o obj-$(CONFIG_CMD_HDMIDETECT) += cmd_hdmidet.o obj-$(CONFIG_CMD_DEKBLOB) += cmd_dek.o diff --git a/arch/arm/imx-common/ddrmc-vf610.c b/arch/arm/imx-common/ddrmc-vf610.c new file mode 100644 index 0000000000..e46263144d --- /dev/null +++ b/arch/arm/imx-common/ddrmc-vf610.c @@ -0,0 +1,278 @@ +/* + * Copyright 2015 Toradex, Inc. + * + * Based on vf610twr: + * Copyright 2013 Freescale Semiconductor, Inc. + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include +#include +#include +#include + +void ddrmc_setup_iomux(void) +{ + static const iomux_v3_cfg_t ddr_pads[] = { + VF610_PAD_DDR_A15__DDR_A_15, + VF610_PAD_DDR_A14__DDR_A_14, + VF610_PAD_DDR_A13__DDR_A_13, + VF610_PAD_DDR_A12__DDR_A_12, + VF610_PAD_DDR_A11__DDR_A_11, + VF610_PAD_DDR_A10__DDR_A_10, + VF610_PAD_DDR_A9__DDR_A_9, + VF610_PAD_DDR_A8__DDR_A_8, + VF610_PAD_DDR_A7__DDR_A_7, + VF610_PAD_DDR_A6__DDR_A_6, + VF610_PAD_DDR_A5__DDR_A_5, + VF610_PAD_DDR_A4__DDR_A_4, + VF610_PAD_DDR_A3__DDR_A_3, + VF610_PAD_DDR_A2__DDR_A_2, + VF610_PAD_DDR_A1__DDR_A_1, + VF610_PAD_DDR_A0__DDR_A_0, + VF610_PAD_DDR_BA2__DDR_BA_2, + VF610_PAD_DDR_BA1__DDR_BA_1, + VF610_PAD_DDR_BA0__DDR_BA_0, + VF610_PAD_DDR_CAS__DDR_CAS_B, + VF610_PAD_DDR_CKE__DDR_CKE_0, + VF610_PAD_DDR_CLK__DDR_CLK_0, + VF610_PAD_DDR_CS__DDR_CS_B_0, + VF610_PAD_DDR_D15__DDR_D_15, + VF610_PAD_DDR_D14__DDR_D_14, + VF610_PAD_DDR_D13__DDR_D_13, + VF610_PAD_DDR_D12__DDR_D_12, + VF610_PAD_DDR_D11__DDR_D_11, + VF610_PAD_DDR_D10__DDR_D_10, + VF610_PAD_DDR_D9__DDR_D_9, + VF610_PAD_DDR_D8__DDR_D_8, + VF610_PAD_DDR_D7__DDR_D_7, + VF610_PAD_DDR_D6__DDR_D_6, + VF610_PAD_DDR_D5__DDR_D_5, + VF610_PAD_DDR_D4__DDR_D_4, + VF610_PAD_DDR_D3__DDR_D_3, + VF610_PAD_DDR_D2__DDR_D_2, + VF610_PAD_DDR_D1__DDR_D_1, + VF610_PAD_DDR_D0__DDR_D_0, + VF610_PAD_DDR_DQM1__DDR_DQM_1, + VF610_PAD_DDR_DQM0__DDR_DQM_0, + VF610_PAD_DDR_DQS1__DDR_DQS_1, + VF610_PAD_DDR_DQS0__DDR_DQS_0, + VF610_PAD_DDR_RAS__DDR_RAS_B, + VF610_PAD_DDR_WE__DDR_WE_B, + VF610_PAD_DDR_ODT1__DDR_ODT_0, + VF610_PAD_DDR_ODT0__DDR_ODT_1, + VF610_PAD_DDR_RESETB, + }; + + imx_iomux_v3_setup_multiple_pads(ddr_pads, ARRAY_SIZE(ddr_pads)); +} + +void ddrmc_phy_init(void) +{ + struct ddrmr_regs *ddrmr = (struct ddrmr_regs *)DDR_BASE_ADDR; + + writel(DDRMC_PHY_DQ_TIMING, &ddrmr->phy[0]); + writel(DDRMC_PHY_DQ_TIMING, &ddrmr->phy[16]); + writel(DDRMC_PHY_DQ_TIMING, &ddrmr->phy[32]); + + writel(DDRMC_PHY_DQS_TIMING, &ddrmr->phy[1]); + writel(DDRMC_PHY_DQS_TIMING, &ddrmr->phy[17]); + + writel(DDRMC_PHY_CTRL, &ddrmr->phy[2]); + writel(DDRMC_PHY_CTRL, &ddrmr->phy[18]); + writel(DDRMC_PHY_CTRL, &ddrmr->phy[34]); + + writel(DDRMC_PHY_MASTER_CTRL, &ddrmr->phy[3]); + writel(DDRMC_PHY_MASTER_CTRL, &ddrmr->phy[19]); + writel(DDRMC_PHY_MASTER_CTRL, &ddrmr->phy[35]); + + writel(DDRMC_PHY_SLAVE_CTRL, &ddrmr->phy[4]); + writel(DDRMC_PHY_SLAVE_CTRL, &ddrmr->phy[20]); + writel(DDRMC_PHY_SLAVE_CTRL, &ddrmr->phy[36]); + + /* LPDDR2 only parameter */ + writel(DDRMC_PHY_OFF, &ddrmr->phy[49]); + + writel(DDRMC_PHY50_DDR3_MODE | + DDRMC_PHY50_EN_SW_HALF_CYCLE, &ddrmr->phy[50]); + + /* Processor Pad ODT settings */ + writel(DDRMC_PHY_PROC_PAD_ODT, &ddrmr->phy[52]); +} + +static void ddrmc_ctrl_lvl_init(struct ddrmc_lvl_info *lvl) +{ + struct ddrmr_regs *ddrmr = (struct ddrmr_regs *)DDR_BASE_ADDR; + u32 cr102 = 0, cr105 = 0, cr106 = 0, cr110 = 0; + + if (lvl->wrlvl_reg_en) { + writel(DDRMC_CR97_WRLVL_EN, &ddrmr->cr[97]); + writel(DDRMC_CR98_WRLVL_DL_0(lvl->wrlvl_dl_0), &ddrmr->cr[98]); + writel(DDRMC_CR99_WRLVL_DL_1(lvl->wrlvl_dl_1), &ddrmr->cr[99]); + } + + if (lvl->rdlvl_reg_en) { + cr102 |= DDRMC_CR102_RDLVL_REG_EN; + cr105 |= DDRMC_CR105_RDLVL_DL_0(lvl->rdlvl_dl_0); + cr110 |= DDRMC_CR110_RDLVL_DL_1(lvl->rdlvl_dl_1); + } + + if (lvl->rdlvl_gt_reg_en) { + cr102 |= DDRMC_CR102_RDLVL_GT_REGEN; + cr106 |= DDRMC_CR106_RDLVL_GTDL_0(lvl->rdlvl_gt_dl_0); + cr110 |= DDRMC_CR110_RDLVL_GTDL_1(lvl->rdlvl_gt_dl_1); + } + + writel(cr102, &ddrmr->cr[102]); + writel(cr105, &ddrmr->cr[105]); + writel(cr106, &ddrmr->cr[106]); + writel(cr110, &ddrmr->cr[110]); +} + +void ddrmc_ctrl_init_ddr3(struct ddr3_jedec_timings const *timings, + struct ddrmc_lvl_info *lvl, + int col_diff, int row_diff) +{ + struct ddrmr_regs *ddrmr = (struct ddrmr_regs *)DDR_BASE_ADDR; + + writel(DDRMC_CR00_DRAM_CLASS_DDR3, &ddrmr->cr[0]); + writel(DDRMC_CR02_DRAM_TINIT(timings->tinit), &ddrmr->cr[2]); + writel(DDRMC_CR10_TRST_PWRON(timings->trst_pwron), &ddrmr->cr[10]); + + writel(DDRMC_CR11_CKE_INACTIVE(timings->cke_inactive), &ddrmr->cr[11]); + writel(DDRMC_CR12_WRLAT(timings->wrlat) | + DDRMC_CR12_CASLAT_LIN(timings->caslat_lin), &ddrmr->cr[12]); + writel(DDRMC_CR13_TRC(timings->trc) | DDRMC_CR13_TRRD(timings->trrd) | + DDRMC_CR13_TCCD(timings->tccd), &ddrmr->cr[13]); + writel(DDRMC_CR14_TFAW(timings->tfaw) | DDRMC_CR14_TRP(timings->trp) | + DDRMC_CR14_TWTR(timings->twtr) | + DDRMC_CR14_TRAS_MIN(timings->tras_min), &ddrmr->cr[14]); + writel(DDRMC_CR16_TMRD(timings->tmrd) | + DDRMC_CR16_TRTP(timings->trtp), &ddrmr->cr[16]); + writel(DDRMC_CR17_TRAS_MAX(timings->tras_max) | + DDRMC_CR17_TMOD(timings->tmod), &ddrmr->cr[17]); + writel(DDRMC_CR18_TCKESR(timings->tckesr) | + DDRMC_CR18_TCKE(timings->tcke), &ddrmr->cr[18]); + + writel(DDRMC_CR20_AP_EN, &ddrmr->cr[20]); + writel(DDRMC_CR21_TRCD_INT(timings->trcd_int) | + DDRMC_CR21_CCMAP_EN, &ddrmr->cr[21]); + + writel(DDRMC_CR22_TDAL(timings->tdal), &ddrmr->cr[22]); + writel(DDRMC_CR23_BSTLEN(3) | + DDRMC_CR23_TDLL(timings->tdll), &ddrmr->cr[23]); + writel(DDRMC_CR24_TRP_AB(timings->trp_ab), &ddrmr->cr[24]); + + writel(DDRMC_CR25_TREF_EN, &ddrmr->cr[25]); + writel(DDRMC_CR26_TREF(timings->tref) | + DDRMC_CR26_TRFC(timings->trfc), &ddrmr->cr[26]); + writel(DDRMC_CR28_TREF_INT(0), &ddrmr->cr[28]); + writel(DDRMC_CR29_TPDEX(timings->tpdex), &ddrmr->cr[29]); + + writel(DDRMC_CR30_TXPDLL(timings->txpdll), &ddrmr->cr[30]); + writel(DDRMC_CR31_TXSNR(timings->txsnr) | + DDRMC_CR31_TXSR(timings->txsr), &ddrmr->cr[31]); + writel(DDRMC_CR33_EN_QK_SREF, &ddrmr->cr[33]); + writel(DDRMC_CR34_CKSRX(timings->cksrx) | + DDRMC_CR34_CKSRE(timings->cksre), &ddrmr->cr[34]); + + writel(DDRMC_CR38_FREQ_CHG_EN(0), &ddrmr->cr[38]); + writel(DDRMC_CR39_PHY_INI_COM(1024) | DDRMC_CR39_PHY_INI_STA(16) | + DDRMC_CR39_FRQ_CH_DLLOFF(2), &ddrmr->cr[39]); + + writel(DDRMC_CR41_PHY_INI_STRT_INI_DIS, &ddrmr->cr[41]); + writel(DDRMC_CR48_MR1_DA_0(70) | + DDRMC_CR48_MR0_DA_0(1056), &ddrmr->cr[48]); + + writel(DDRMC_CR66_ZQCL(timings->zqcl) | + DDRMC_CR66_ZQINIT(timings->zqinit), &ddrmr->cr[66]); + writel(DDRMC_CR67_ZQCS(timings->zqcs), &ddrmr->cr[67]); + writel(DDRMC_CR69_ZQ_ON_SREF_EX(2), &ddrmr->cr[69]); + + writel(DDRMC_CR70_REF_PER_ZQ(timings->ref_per_zq), &ddrmr->cr[70]); + writel(DDRMC_CR72_ZQCS_ROTATE(0), &ddrmr->cr[72]); + + writel(DDRMC_CR73_APREBIT(timings->aprebit) | + DDRMC_CR73_COL_DIFF(col_diff) | + DDRMC_CR73_ROW_DIFF(row_diff), &ddrmr->cr[73]); + writel(DDRMC_CR74_BANKSPLT_EN | DDRMC_CR74_ADDR_CMP_EN | + DDRMC_CR74_CMD_AGE_CNT(64) | DDRMC_CR74_AGE_CNT(64), + &ddrmr->cr[74]); + writel(DDRMC_CR75_RW_PG_EN | DDRMC_CR75_RW_EN | DDRMC_CR75_PRI_EN | + DDRMC_CR75_PLEN, &ddrmr->cr[75]); + writel(DDRMC_CR76_NQENT_ACTDIS(3) | DDRMC_CR76_D_RW_G_BKCN(3) | + DDRMC_CR76_W2R_SPLT_EN, &ddrmr->cr[76]); + writel(DDRMC_CR77_CS_MAP | DDRMC_CR77_DI_RD_INTLEAVE | + DDRMC_CR77_SWAP_EN, &ddrmr->cr[77]); + writel(DDRMC_CR78_Q_FULLNESS(7) | + DDRMC_CR78_BUR_ON_FLY_BIT(12), &ddrmr->cr[78]); + writel(DDRMC_CR79_CTLUPD_AREF(0), &ddrmr->cr[79]); + + writel(DDRMC_CR82_INT_MASK, &ddrmr->cr[82]); + + writel(DDRMC_CR87_ODT_WR_MAPCS0, &ddrmr->cr[87]); + writel(DDRMC_CR88_TODTL_CMD(4), &ddrmr->cr[88]); + writel(DDRMC_CR89_AODT_RWSMCS(2), &ddrmr->cr[89]); + + writel(DDRMC_CR91_R2W_SMCSDL(2), &ddrmr->cr[91]); + writel(DDRMC_CR96_WLMRD(timings->wlmrd) | + DDRMC_CR96_WLDQSEN(timings->wldqsen), &ddrmr->cr[96]); + + if (lvl != NULL) + ddrmc_ctrl_lvl_init(lvl); + + writel(DDRMC_CR117_AXI0_W_PRI(0) | + DDRMC_CR117_AXI0_R_PRI(0), &ddrmr->cr[117]); + writel(DDRMC_CR118_AXI1_W_PRI(1) | + DDRMC_CR118_AXI1_R_PRI(1), &ddrmr->cr[118]); + + writel(DDRMC_CR120_AXI0_PRI1_RPRI(2) | + DDRMC_CR120_AXI0_PRI0_RPRI(2), &ddrmr->cr[120]); + writel(DDRMC_CR121_AXI0_PRI3_RPRI(2) | + DDRMC_CR121_AXI0_PRI2_RPRI(2), &ddrmr->cr[121]); + writel(DDRMC_CR122_AXI1_PRI1_RPRI(1) | DDRMC_CR122_AXI1_PRI0_RPRI(1) | + DDRMC_CR122_AXI0_PRIRLX(100), &ddrmr->cr[122]); + writel(DDRMC_CR123_AXI1_P_ODR_EN | DDRMC_CR123_AXI1_PRI3_RPRI(1) | + DDRMC_CR123_AXI1_PRI2_RPRI(1), &ddrmr->cr[123]); + writel(DDRMC_CR124_AXI1_PRIRLX(100), &ddrmr->cr[124]); + + writel(DDRMC_CR126_PHY_RDLAT(8), &ddrmr->cr[126]); + writel(DDRMC_CR132_WRLAT_ADJ(5) | + DDRMC_CR132_RDLAT_ADJ(6), &ddrmr->cr[132]); + writel(DDRMC_CR137_PHYCTL_DL(2), &ddrmr->cr[137]); + writel(DDRMC_CR138_PHY_WRLV_MXDL(256) | + DDRMC_CR138_PHYDRAM_CK_EN(1), &ddrmr->cr[138]); + writel(DDRMC_CR139_PHY_WRLV_RESPLAT(4) | DDRMC_CR139_PHY_WRLV_LOAD(7) | + DDRMC_CR139_PHY_WRLV_DLL(3) | + DDRMC_CR139_PHY_WRLV_EN(3), &ddrmr->cr[139]); + writel(DDRMC_CR140_PHY_WRLV_WW(64), &ddrmr->cr[140]); + writel(DDRMC_CR143_RDLV_GAT_MXDL(1536) | + DDRMC_CR143_RDLV_MXDL(128), &ddrmr->cr[143]); + writel(DDRMC_CR144_PHY_RDLVL_RES(4) | DDRMC_CR144_PHY_RDLV_LOAD(7) | + DDRMC_CR144_PHY_RDLV_DLL(3) | + DDRMC_CR144_PHY_RDLV_EN(3), &ddrmr->cr[144]); + writel(DDRMC_CR145_PHY_RDLV_RR(64), &ddrmr->cr[145]); + writel(DDRMC_CR146_PHY_RDLVL_RESP(64), &ddrmr->cr[146]); + writel(DDRMC_CR147_RDLV_RESP_MASK(983040), &ddrmr->cr[147]); + writel(DDRMC_CR148_RDLV_GATE_RESP_MASK(983040), &ddrmr->cr[148]); + writel(DDRMC_CR151_RDLV_GAT_DQ_ZERO_CNT(1) | + DDRMC_CR151_RDLVL_DQ_ZERO_CNT(1), &ddrmr->cr[151]); + + writel(DDRMC_CR154_PAD_ZQ_EARLY_CMP_EN_TIMER(13) | + DDRMC_CR154_PAD_ZQ_MODE(1) | + DDRMC_CR154_DDR_SEL_PAD_CONTR(3) | + DDRMC_CR154_PAD_ZQ_HW_FOR(1), &ddrmr->cr[154]); + writel(DDRMC_CR155_PAD_ODT_BYTE1(2) | + DDRMC_CR155_PAD_ODT_BYTE0(2), &ddrmr->cr[155]); + writel(DDRMC_CR158_TWR(6), &ddrmr->cr[158]); + writel(DDRMC_CR161_ODT_EN(1) | DDRMC_CR161_TODTH_RD(2) | + DDRMC_CR161_TODTH_WR(2), &ddrmr->cr[161]); + + ddrmc_phy_init(); + + writel(DDRMC_CR00_DRAM_CLASS_DDR3 | DDRMC_CR00_START, &ddrmr->cr[0]); + + while (!(readl(&ddrmr->cr[80]) && 0x100)) + udelay(10); +} -- cgit v1.2.1