From: Marek Vasut Date: Sun, 16 Mar 2025 13:51:42 +0000 (+0100) Subject: ram: renesas: dbsc5: Synchronize initialization code to rev.1.10 X-Git-Tag: v2025.04-rc5~10^2~2 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=9ae94d2aedbbd38dc681f89b82f8ce4f2c3ee387;p=pandora-u-boot.git ram: renesas: dbsc5: Synchronize initialization code to rev.1.10 Update the DRAM initialization code to match DBSC5 initialization code rev.1.10 , which is currently the latest version available. This makes DRAM initialization operational on Renesas R-Car V4H R8A779G0 rev.3.0. Signed-off-by: Marek Vasut --- diff --git a/drivers/ram/renesas/dbsc5/dram.c b/drivers/ram/renesas/dbsc5/dram.c index 0616658e9f8..1b70faff7f7 100644 --- a/drivers/ram/renesas/dbsc5/dram.c +++ b/drivers/ram/renesas/dbsc5/dram.c @@ -220,6 +220,7 @@ static const u16 jedec_spec2_tRFC_ab[] = { #define PHY_RDLVL_RDDQS_DQ_TE_DLY_OBS DDR_REGDEF(0x00, 0x09, 0x103F) #define PHY_WDQLVL_STATUS_OBS DDR_REGDEF(0x00, 0x20, 0x1043) #define PHY_DATA_DC_CAL_START DDR_REGDEF(0x18, 0x01, 0x104D) +#define PHY_SLV_DLY_CTRL_GATE_DISABLE DDR_REGDEF(0x10, 0x01, 0x104E) #define PHY_REGULATOR_EN_CNT DDR_REGDEF(0x18, 0x06, 0x1050) #define PHY_VREF_INITIAL_START_POINT DDR_REGDEF(0x00, 0x09, 0x1055) #define PHY_VREF_INITIAL_STOP_POINT DDR_REGDEF(0x10, 0x09, 0x1055) @@ -469,7 +470,7 @@ static const u32 DDR_PHY_SLICE_REGSET_V4H[DDR_PHY_SLICE_REGSET_NUM_V4H] = { 0x00000000, 0x00500050, 0x00500050, 0x00500050, 0x00500050, 0x0D000050, 0x10100004, 0x06102010, 0x61619041, 0x07097000, 0x00644180, 0x00803280, - 0x00808001, 0x13010100, 0x02000016, 0x10001003, + 0x00808001, 0x13010101, 0x02000016, 0x10001003, 0x06093E42, 0x0F063D01, 0x011700C8, 0x04100140, 0x00000100, 0x000001D1, 0x05000068, 0x00030402, 0x01400000, 0x80800300, 0x00160010, 0x76543210, @@ -512,8 +513,8 @@ static const u32 DDR_PHY_ADR_G_REGSET_V4H[DDR_PHY_ADR_G_REGSET_NUM_V4H] = { 0x00040101, 0x00000000, 0x00000000, 0x00000064, 0x00000000, 0x00000000, 0x39421B42, 0x00010124, 0x00520052, 0x00000052, 0x00000000, 0x00000000, - 0x00000000, 0x00000000, 0x00000000, 0x00000000, - 0x00000000, 0x00000000, 0x00000000, 0x07030102, + 0x00010001, 0x00000000, 0x00000000, 0x00010001, + 0x00000000, 0x00000000, 0x00010001, 0x07030102, 0x01030307, 0x00000054, 0x00004096, 0x08200820, 0x08200820, 0x08200820, 0x08200820, 0x00000820, 0x004103B8, 0x0000003F, 0x000C0006, 0x00000000, @@ -1294,7 +1295,7 @@ static const struct dbsc5_table_patch dbsc5_table_patch_slice_mbpsdiv_572 = { }; static const struct dbsc5_table_patch dbsc5_table_patch_adr_g_mbpsdiv_572 = { - PHY_PAD_ACS_RX_PCLK_CLK_SEL, 0x03 + PHY_PAD_ACS_RX_PCLK_CLK_SEL, 0x02 }; static const struct dbsc5_table_patch dbsc5_table_patch_adr_g_mbpsdiv_400[] = { @@ -1713,14 +1714,17 @@ static void dbsc5_clk_wait_dbpdstat1(struct udevice *dev, u32 status) { struct renesas_dbsc5_dram_priv *priv = dev_get_priv(dev); void __iomem *regs_dbsc_d = priv->regs + DBSC5_DBSC_D_OFFSET; - u32 i, ch, reg; + u32 i, ch, chk, reg; for (i = 0; i < 2; i++) { do { reg = status; - r_foreach_vch(dev, ch) + chk = 0; + r_foreach_vch(dev, ch) { reg &= readl(regs_dbsc_d + DBSC_DBPDSTAT1(ch)); - } while (reg != status); + chk |= readl(regs_dbsc_d + DBSC_DBPDSTAT0(ch)); + } + } while (reg != status && !(chk & BIT(0))); } } @@ -3491,13 +3495,10 @@ static void dbsc5_manual_write_dca(struct udevice *dev) { struct renesas_dbsc5_dram_priv *priv = dev_get_priv(dev); const u32 rank = priv->ch_have_this_cs[1] ? 0x2 : 0x1; - u32 slv_dly_center[DRAM_CH_CNT][CS_CNT][SLICE_CNT]; - u32 slv_dly_center_cyc; - u32 slv_dly_center_dly; + u32 phy_slv_dly[DRAM_CH_CNT][CS_CNT][SLICE_CNT]; + u32 phy_slv_dly_avg[DRAM_CH_CNT][SLICE_CNT]; u32 slv_dly_min[DRAM_CH_CNT][SLICE_CNT]; u32 slv_dly_max[DRAM_CH_CNT][SLICE_CNT]; - u32 slv_dly_min_tmp[DRAM_CH_CNT][CS_CNT][SLICE_CNT]; - u32 slv_dly_max_tmp[DRAM_CH_CNT][CS_CNT][SLICE_CNT]; u32 phy_dcc_code_min[DRAM_CH_CNT][SLICE_CNT]; u32 phy_dcc_code_max[DRAM_CH_CNT][SLICE_CNT]; u32 phy_dcc_code_mid; @@ -3521,18 +3522,9 @@ static void dbsc5_manual_write_dca(struct udevice *dev) dbsc5_ddr_setval_all_ch_all_slice(dev, PHY_PER_CS_TRAINING_INDEX, cs); r_foreach_vch(dev, ch) { for (slice = 0; slice < SLICE_CNT; slice++) { - slv_dly_center[ch][cs][slice] = - dbsc5_ddr_getval_slice(dev, ch, slice, PHY_CLK_WRDQS_SLAVE_DELAY); - slv_dly_center_cyc = slv_dly_center[ch][cs][slice] & 0x180; - slv_dly_center_dly = slv_dly_center[ch][cs][slice] & 0x7F; - slv_dly_min_tmp[ch][cs][slice] = - slv_dly_center_cyc | - (slv_dly_center_dly * ratio_min / ratio_min_div); - slv_dly_max_tmp[ch][cs][slice] = slv_dly_center_cyc; - if ((slv_dly_center_dly * ratio_max) > (0x7F * ratio_max_div)) - slv_dly_max_tmp[ch][cs][slice] |= 0x7F; - else - slv_dly_max_tmp[ch][cs][slice] |= slv_dly_center_dly * ratio_max / ratio_max_div; + phy_slv_dly[ch][cs][slice] = + dbsc5_ddr_getval_slice(dev, ch, slice, + PHY_CLK_WRDQS_SLAVE_DELAY); } } } @@ -3540,22 +3532,22 @@ static void dbsc5_manual_write_dca(struct udevice *dev) r_foreach_vch(dev, ch) { for (slice = 0; slice < SLICE_CNT; slice++) { if (rank == 0x2) { - if (slv_dly_max_tmp[ch][0][slice] < slv_dly_max_tmp[ch][1][slice]) - slv_dly_max[ch][slice] = slv_dly_max_tmp[ch][1][slice]; - else - slv_dly_max[ch][slice] = slv_dly_max_tmp[ch][0][slice]; - - if (slv_dly_min_tmp[ch][0][slice] < slv_dly_min_tmp[ch][1][slice]) - slv_dly_min[ch][slice] = slv_dly_min_tmp[ch][0][slice]; - else - slv_dly_min[ch][slice] = slv_dly_min_tmp[ch][1][slice]; + /* Calculate average between ranks */ + phy_slv_dly_avg[ch][slice] = (phy_slv_dly[ch][0][slice] + + phy_slv_dly[ch][1][slice]) / 2; } else { - slv_dly_max[ch][slice] = slv_dly_max_tmp[ch][0][slice]; - slv_dly_min[ch][slice] = slv_dly_min_tmp[ch][0][slice]; + phy_slv_dly_avg[ch][slice] = phy_slv_dly[ch][0][slice]; } + /* Determine the search range */ + slv_dly_min[ch][slice] = (phy_slv_dly_avg[ch][slice] & 0x07F) * ratio_min / ratio_min_div; + slv_dly_max[ch][slice] = (phy_slv_dly_avg[ch][slice] & 0x07F) * ratio_max / ratio_max_div; + if (slv_dly_max[ch][slice] > 0x7F) + slv_dly_max[ch][slice] = 0x7F; } } + dbsc5_ddr_setval_all_ch_all_slice(dev, PHY_SLV_DLY_CTRL_GATE_DISABLE, 0x1); + for (i = 0; i <= 0x7F; i++) { r_foreach_vch(dev, ch) { for (slice = 0; slice < SLICE_CNT; slice++) { @@ -3621,13 +3613,16 @@ static void dbsc5_manual_write_dca(struct udevice *dev) for (slice = 0; slice < SLICE_CNT; slice++) { dbsc5_ddr_setval_slice(dev, ch, slice, PHY_CLK_WRDQS_SLAVE_DELAY, - slv_dly_center[ch][cs][slice]); + phy_slv_dly[ch][cs][slice]); dbsc5_ddr_setval_slice(dev, ch, slice, SC_PHY_WCK_CALC, 0x1); dbsc5_ddr_setval(dev, ch, SC_PHY_MANUAL_UPDATE, 0x1); } } } + + dbsc5_ddr_setval_all_ch_all_slice(dev, PHY_SLV_DLY_CTRL_GATE_DISABLE, 0x0); + dbsc5_ddr_setval_all_ch_all_slice(dev, PHY_PER_CS_TRAINING_MULTICAST_EN, 0x1); r_foreach_vch(dev, ch) {