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author | Anthony Felice <tony.felice@timesys.com> | 2014-09-06 19:47:06 +0200 |
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committer | Albert ARIBAUD <albert.u.boot@aribaud.net> | 2014-10-07 13:08:31 +0200 |
commit | c19a8bc5711ec63e905ef91f045a1489f0aa3cb0 (patch) | |
tree | a29aaf854053be0d81157e8ee1dc106cc9956b8d /board/freescale/vf610twr/vf610twr.c | |
parent | 1454ba8e56d88a8b95ac8050cde2c07c651cd0ae (diff) | |
download | u-boot-imx-c19a8bc5711ec63e905ef91f045a1489f0aa3cb0.zip u-boot-imx-c19a8bc5711ec63e905ef91f045a1489f0aa3cb0.tar.gz u-boot-imx-c19a8bc5711ec63e905ef91f045a1489f0aa3cb0.tar.bz2 |
vf610twr: Tune DDR initialization settings
Removed settings in unsupported register fields. They didn’t
do anything, and in most cases, were not documented in the
reference manual.
Changed register settings to comply with JEDEC required values.
Changed timing parameters because they included full clock
periods that were doing nothing.
Signed-off-by: Anthony Felice <tony.felice@timesys.com>
[rebased on v2014.10-rc2]
Signed-off-by: Stefan Agner <stefan@agner.ch>
Diffstat (limited to 'board/freescale/vf610twr/vf610twr.c')
-rw-r--r-- | board/freescale/vf610twr/vf610twr.c | 94 |
1 files changed, 60 insertions, 34 deletions
diff --git a/board/freescale/vf610twr/vf610twr.c b/board/freescale/vf610twr/vf610twr.c index 54a9f2c..21f49fd 100644 --- a/board/freescale/vf610twr/vf610twr.c +++ b/board/freescale/vf610twr/vf610twr.c @@ -45,6 +45,7 @@ void setup_iomux_ddr(void) 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, @@ -76,6 +77,7 @@ void setup_iomux_ddr(void) 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)); @@ -88,30 +90,30 @@ void ddr_phy_init(void) 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_DQ_TIMING, &ddrmr->phy[48]); writel(DDRMC_PHY_DQS_TIMING, &ddrmr->phy[1]); writel(DDRMC_PHY_DQS_TIMING, &ddrmr->phy[17]); - writel(DDRMC_PHY_DQS_TIMING, &ddrmr->phy[33]); - writel(DDRMC_PHY_DQS_TIMING, &ddrmr->phy[49]); writel(DDRMC_PHY_CTRL, &ddrmr->phy[2]); writel(DDRMC_PHY_CTRL, &ddrmr->phy[18]); writel(DDRMC_PHY_CTRL, &ddrmr->phy[34]); - writel(DDRMC_PHY_CTRL, &ddrmr->phy[50]); 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_MASTER_CTRL, &ddrmr->phy[51]); writel(DDRMC_PHY_SLAVE_CTRL, &ddrmr->phy[4]); writel(DDRMC_PHY_SLAVE_CTRL, &ddrmr->phy[20]); writel(DDRMC_PHY_SLAVE_CTRL, &ddrmr->phy[36]); - writel(DDRMC_PHY_SLAVE_CTRL, &ddrmr->phy[52]); + + /* 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]); } void ddr_ctrl_init(void) @@ -120,12 +122,12 @@ void ddr_ctrl_init(void) writel(DDRMC_CR00_DRAM_CLASS_DDR3, &ddrmr->cr[0]); writel(DDRMC_CR02_DRAM_TINIT(32), &ddrmr->cr[2]); - writel(DDRMC_CR10_TRST_PWRON(124), &ddrmr->cr[10]); + writel(DDRMC_CR10_TRST_PWRON(80000), &ddrmr->cr[10]); - writel(DDRMC_CR11_CKE_INACTIVE(80000), &ddrmr->cr[11]); + writel(DDRMC_CR11_CKE_INACTIVE(200000), &ddrmr->cr[11]); writel(DDRMC_CR12_WRLAT(5) | DDRMC_CR12_CASLAT_LIN(12), &ddrmr->cr[12]); - writel(DDRMC_CR13_TRC(21) | DDRMC_CR13_TRRD(4) | DDRMC_CR13_TCCD(4) | - DDRMC_CR13_TBST_INT_INTERVAL(4), &ddrmr->cr[13]); + writel(DDRMC_CR13_TRC(21) | DDRMC_CR13_TRRD(4) | DDRMC_CR13_TCCD(4), + &ddrmr->cr[13]); writel(DDRMC_CR14_TFAW(20) | DDRMC_CR14_TRP(6) | DDRMC_CR14_TWTR(4) | DDRMC_CR14_TRAS_MIN(15), &ddrmr->cr[14]); writel(DDRMC_CR16_TMRD(4) | DDRMC_CR16_TRTP(4), &ddrmr->cr[16]); @@ -134,24 +136,23 @@ void ddr_ctrl_init(void) writel(DDRMC_CR18_TCKESR(4) | DDRMC_CR18_TCKE(3), &ddrmr->cr[18]); writel(DDRMC_CR20_AP_EN, &ddrmr->cr[20]); - writel(DDRMC_CR21_TRCD_INT(6) | DDRMC_CR21_TRAS_LOCKOUT | - DDRMC_CR21_CCMAP_EN, &ddrmr->cr[21]); + writel(DDRMC_CR21_TRCD_INT(6) | DDRMC_CR21_CCMAP_EN, &ddrmr->cr[21]); - writel(DDRMC_CR22_TDAL(11), &ddrmr->cr[22]); + writel(DDRMC_CR22_TDAL(12), &ddrmr->cr[22]); writel(DDRMC_CR23_BSTLEN(3) | DDRMC_CR23_TDLL(512), &ddrmr->cr[23]); writel(DDRMC_CR24_TRP_AB(6), &ddrmr->cr[24]); writel(DDRMC_CR25_TREF_EN, &ddrmr->cr[25]); - writel(DDRMC_CR26_TREF(3112) | DDRMC_CR26_TRFC(44), &ddrmr->cr[26]); - writel(DDRMC_CR28_TREF_INT(5), &ddrmr->cr[28]); + writel(DDRMC_CR26_TREF(3120) | DDRMC_CR26_TRFC(44), &ddrmr->cr[26]); + writel(DDRMC_CR28_TREF_INT(0), &ddrmr->cr[28]); writel(DDRMC_CR29_TPDEX(3), &ddrmr->cr[29]); writel(DDRMC_CR30_TXPDLL(10), &ddrmr->cr[30]); - writel(DDRMC_CR31_TXSNR(68) | DDRMC_CR31_TXSR(512), &ddrmr->cr[31]); + writel(DDRMC_CR31_TXSNR(48) | DDRMC_CR31_TXSR(468), &ddrmr->cr[31]); writel(DDRMC_CR33_EN_QK_SREF, &ddrmr->cr[33]); writel(DDRMC_CR34_CKSRX(5) | DDRMC_CR34_CKSRE(5), &ddrmr->cr[34]); - writel(DDRMC_CR38_FREQ_CHG_EN, &ddrmr->cr[38]); + 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]); @@ -164,37 +165,45 @@ void ddr_ctrl_init(void) writel(DDRMC_CR69_ZQ_ON_SREF_EX(2), &ddrmr->cr[69]); writel(DDRMC_CR70_REF_PER_ZQ(64), &ddrmr->cr[70]); - writel(DDRMC_CR72_ZQCS_ROTATE, &ddrmr->cr[72]); + writel(DDRMC_CR72_ZQCS_ROTATE(0), &ddrmr->cr[72]); writel(DDRMC_CR73_APREBIT(10) | DDRMC_CR73_COL_DIFF(1) | DDRMC_CR73_ROW_DIFF(3), &ddrmr->cr[73]); writel(DDRMC_CR74_BANKSPLT_EN | DDRMC_CR74_ADDR_CMP_EN | - DDRMC_CR74_CMD_AGE_CNT(255) | DDRMC_CR74_AGE_CNT(255), + 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 | DDRMC_CR76_CS_EN, &ddrmr->cr[76]); + 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_BUR_ON_FLY_BIT(12), &ddrmr->cr[78]); - writel(DDRMC_CR79_CTLUPD_AREF, &ddrmr->cr[79]); + 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 | DDRMC_CR87_ODT_RD_MAPCS0, - &ddrmr->cr[87]); + 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(40) | DDRMC_CR96_WLDQSEN(25), &ddrmr->cr[96]); + writel(DDRMC_CR97_WRLVL_EN, &ddrmr->cr[97]); + writel(DDRMC_CR98_WRLVL_DL_0, &ddrmr->cr[98]); + writel(DDRMC_CR99_WRLVL_DL_1, &ddrmr->cr[99]); + + writel(DDRMC_CR102_RDLVL_GT_REGEN | DDRMC_CR102_RDLVL_REG_EN, + &ddrmr->cr[102]); - writel(DDRMC_CR105_RDLVL_DL_0(32), &ddrmr->cr[105]); - writel(DDRMC_CR110_RDLVL_DL_1(32), &ddrmr->cr[110]); - writel(DDRMC_CR114_RDLVL_GTDL_2(8224), &ddrmr->cr[114]); + writel(DDRMC_CR105_RDLVL_DL_0(0), &ddrmr->cr[105]); + writel(DDRMC_CR106_RDLVL_GTDL_0(4), &ddrmr->cr[106]); + writel(DDRMC_CR110_RDLVL_GTDL_1(4), &ddrmr->cr[110]); + writel(DDRMC_CR114_RDLVL_GTDL_2(0), &ddrmr->cr[114]); + writel(DDRMC_CR115_RDLVL_GTDL_2(0), &ddrmr->cr[115]); - writel(DDRMC_CR117_AXI0_W_PRI(1) | DDRMC_CR117_AXI0_R_PRI(1), + 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]); @@ -205,23 +214,40 @@ void ddr_ctrl_init(void) &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_PRI3_RPRI(1) | DDRMC_CR123_AXI1_PRI2_RPRI(1), - &ddrmr->cr[123]); + 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(11), &ddrmr->cr[126]); + 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), &ddrmr->cr[154]); - writel(DDRMC_CR155_AXI0_AWCACHE | DDRMC_CR155_PAD_ODT_BYTE1(2), + 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]); ddr_phy_init(); |