| Message ID | 20190611145135.21399-1-jagan@amarulasolutions.com (mailing list archive) |
|---|---|
| Headers | show |
| Series | ram: rk3399: Add LPDDR4 support | expand |
> On 11.06.2019, at 16:50, Jagan Teki <jagan@amarulasolutions.com> wrote: > > Yes, it can be possible to break this series into multiple sub series > but idea here is to mark all the required changes to support LPDDR4 > in rk3399 in one set. if required we can break it from next versions. > > This is the initial set for supporting LPDDR4 with associated > features. > > Thanks to > - YouMin Chen > - Akash Gajjar > - Kever Yang > for supporting all the help on this work. > > On summary this series support > - Code warning and fixes > - rank detection, this would required to probe single channel > sdram configured in NanoPI-NEO4 > - LPDDR4 support, tested in Rockpro64 and Rock-PI-4 > > patch 0001 - 0033: fix code warnings, prints, new macros > > patch 0034 - 0051: rank detection, sdram debug code > > patch 0052: Use DDR3-1800 on NanoPI-NEO4 > > patch 0053 - 0089: lpddr4 support > > patch 0090: LPDDR4-100 timings > > patch 0091: Use LPDDR4-100 on Rockpro64 > > patch 0092: Use LPDDR4-100 on Rock-PI 4 > > Note: Puma rk3399 has SPL size overflow, better to enable TPL > for this board. We need to keep Puma on a SPL-only configuration for the time being. Please make sure that the LPDDR4 code is an optional feature that does not increase the DRAM-driver size for boards that don’t need/want it. Thanks, Philipp. > > Any inputs? > Jagan. > > Jagan Teki (92): > ram: rk3399: Fix code warnings > ram: rk3399: Add space between string with format specifier > ram: rk3399: Add proper spaces in data training > ram: rk3399: Handle data training return types > ram: rk3399: Order include files > ram: rk3399: Move macro after include files > ram: rk3399: Clear PI_175 interrupts in data training > ram: rk3399: Use rank mask in ca data training > ram: rk3399: Use rank mask in wdql data training > ram: rk3399: Add ddrtype enc macro > ram: rk3399: Add channel number encoder macro > ram: rk3399: Add row_3_4 enc macro > ram: rk3399: Add chipinfo macro > ram: rk3399: Add rank enc macro > ram: rk3399: Add column enc macro > ram: rk3399: Add bk enc macro > ram: rk3399: Add dbw enc macro > ram: rk3399: Add cs0_rw macro > ram: rk3399: Add cs1_rw macro > ram: rk3399: Add bw enc macro > ram: rk3399: Rename sys_reg with sys_reg2 > ram: rk3399: Update cs0_row to use sys_reg3 > ram: rk3399: Update cs1_row to use sys_reg3 > ram: rk3399: Add cs1_col enc macro > ram: rk3399: Add ddr version enc macro > ram: rk3399: Add ddrtimingC0 > ram: rk3399: Add DdrMode > ram: rk3399: Handle pctl_cfg return type > ram: rk3399: s/tsel_wr_select_n/tsel_wr_select_dq_n > ram: rk3399: s/tsel_wr_select_p/tsel_wr_select_dq_p > ram: rk3399: s/ca_tsel_wr_select_n/tsel_wr_select_ca_n > ram: rk3399: s/ca_tsel_wr_select_p/tsel_wr_select_ca_p > ram: rk3399: Order tsel variables > ram: rk3399: Add phy pctrl reset support > ram: rk3399: Move pwrup_srefresh_exit to dram_info > ram: rk3399: Add pctl start support > ram: rockchip: rk3399: Add cap_info structure > ram: rk3399: s/rk3399_base_params/sdram_base_params > ram: rk3399: Move common sdram structures in common header > arm: include: rockchip: Move dramtypes to common header > arm: include: rockchip: Add DDR4 enum > ram: rockchip: Add initial Kconfig > debug_uart: Add printdec > ram: rockchip: Add debug sdram driver > ram: rockchip: debug: Add sdram_print_ddr_info > ram: rockchip: debug: Get the cs capacity > ram: rk3399: debug: Add sdram_print_stride > ram: rk3399: Compute stride for 2 channels > ram: rk3399: Compute stride for 1 channel a > ram: rk3399: Add rank detection support > ram: rk3399: Enable sdram debug functions > rockchip: dts: rk3399: nanopi-neo4: Use DDR3-1866 dtsi > clk: rockchip: rk3399: Fix check patch warnings and checks > clk: rockchip: rk3399: Set 50MHz ddr clock > clk: rockchip: rk3399: Set 400MHz ddr clock > ram: rk3399: Add spaces in pctl_cfg > ram: rk3399: Configure phy IO in ds odt > ram: rk3399: Add lpddr4 rank mask for cs training > ram: rk3399: Add lpddr4 rank mask for wdql training > ram: rk3399: Move mode_sel assignment > ram: rk3399: Don't wait for PLL lock in lpddr4 > ram: rk3399: Avoid two channel ZQ Cal Start at the same time > ram: rk3399: Configure PHY_898, PHY_919 for lpddr4 > ram: rk3399: Configure BOOSTP_EN, BOOSTN_EN for lpddr4 > ram: rk3399: Configure SLEWP_EN, SLEWN_EN for lpddr4 > ram: rk3399: Configure PHY RX_CM_INPUT for lpddr4 > ram: rk3399: Map chipselect for lpddr4 > ram: rk3399: Configure tsel write ca for lpddr4 > ram: rk3399: Don't disable dfi dram clk for lpddr4, rank 1 > ram: rk3399: Add IO settings > ram: sdram: Configure lpddr4 tsel rd, wr based on IO settings > ram: rk3399: Add tsel control clock drive > ram: rk3399: Configure soc odt support > ram: rk3399: Get lpddr4 tsel_rd_en from io settings > ram: rk3399: Update lpddr4 vref based on io settings > ram: rk3399: Update lpddr4 mode_sel based on io settings > ram: rk3399: Update lpddr4 vref_mode_ac > ram: rk3399: Add LPPDR4 mr detection > arm: include: rockchip: Add rk3399 pmu file > rockchip: rk3399: syscon: Add pmu support > rockchip: dts: rk3399: Add u-boot,dm-pre-reloc for pmu > ram: rk3399: Add LPPDDR4-400 timings inc > ram: rk3399: Add LPPDDR4-800 timings inc > ram: rk3399: Add lpddr4 set rate support > ram: rk3399: Set lpddr4 dq odt > ram: rk3399: Set lpddr4 ca odt > ram: rk3399: Set lpddr4 MR3 > ram: rk3399: Set lpddr4 MR12 > ram: rk3399: Set lpddr4 MR14 > rockchip: dts: rk3399: Add LPDDR4-100 timings > rockchip: dts: rk3399: rockpro64: Use LPDDR4-100 dtsi > rockchip: dts: rk3399: rock-pi-4: Use LPDDR4-100 dtsi > > arch/arm/dts/rk3399-nanopi-neo4-u-boot.dtsi | 1 + > arch/arm/dts/rk3399-rock-pi-4-u-boot.dtsi | 1 + > arch/arm/dts/rk3399-rockpro64-u-boot.dtsi | 1 + > arch/arm/dts/rk3399-sdram-lpddr4-100.dtsi | 1537 ++++++++++++ > arch/arm/dts/rk3399-u-boot.dtsi | 4 + > .../include/asm/arch-rockchip/pmu_rk3399.h | 72 + > arch/arm/include/asm/arch-rockchip/sdram.h | 6 - > .../include/asm/arch-rockchip/sdram_common.h | 89 + > .../include/asm/arch-rockchip/sdram_rk322x.h | 7 - > .../include/asm/arch-rockchip/sdram_rk3399.h | 65 +- > arch/arm/mach-rockchip/rk3399/syscon_rk3399.c | 8 + > drivers/clk/rockchip/clk_rk3399.c | 76 +- > drivers/ram/Kconfig | 1 + > drivers/ram/rockchip/Kconfig | 26 + > drivers/ram/rockchip/Makefile | 3 +- > .../ram/rockchip/sdram-rk3399-lpddr4-400.inc | 1570 ++++++++++++ > .../ram/rockchip/sdram-rk3399-lpddr4-800.inc | 1570 ++++++++++++ > drivers/ram/rockchip/sdram_debug.c | 147 ++ > drivers/ram/rockchip/sdram_rk3399.c | 2176 ++++++++++++++--- > include/debug_uart.h | 19 + > 20 files changed, 6964 insertions(+), 415 deletions(-) > create mode 100644 arch/arm/dts/rk3399-sdram-lpddr4-100.dtsi > create mode 100644 arch/arm/include/asm/arch-rockchip/pmu_rk3399.h > create mode 100644 drivers/ram/rockchip/Kconfig > create mode 100644 drivers/ram/rockchip/sdram-rk3399-lpddr4-400.inc > create mode 100644 drivers/ram/rockchip/sdram-rk3399-lpddr4-800.inc > create mode 100644 drivers/ram/rockchip/sdram_debug.c > > -- > 2.18.0.321.gffc6fa0e3 >
On Tue, Jun 11, 2019 at 8:23 PM Philipp Tomsich <philipp.tomsich@theobroma-systems.com> wrote: > > > > > On 11.06.2019, at 16:50, Jagan Teki <jagan@amarulasolutions.com> wrote: > > > > Yes, it can be possible to break this series into multiple sub series > > but idea here is to mark all the required changes to support LPDDR4 > > in rk3399 in one set. if required we can break it from next versions. > > > > This is the initial set for supporting LPDDR4 with associated > > features. > > > > Thanks to > > - YouMin Chen > > - Akash Gajjar > > - Kever Yang > > for supporting all the help on this work. > > > > On summary this series support > > - Code warning and fixes > > - rank detection, this would required to probe single channel > > sdram configured in NanoPI-NEO4 > > - LPDDR4 support, tested in Rockpro64 and Rock-PI-4 > > > > patch 0001 - 0033: fix code warnings, prints, new macros > > > > patch 0034 - 0051: rank detection, sdram debug code > > > > patch 0052: Use DDR3-1800 on NanoPI-NEO4 > > > > patch 0053 - 0089: lpddr4 support > > > > patch 0090: LPDDR4-100 timings > > > > patch 0091: Use LPDDR4-100 on Rockpro64 > > > > patch 0092: Use LPDDR4-100 on Rock-PI 4 > > > > Note: Puma rk3399 has SPL size overflow, better to enable TPL > > for this board. > > We need to keep Puma on a SPL-only configuration for the time being. > Please make sure that the LPDDR4 code is an optional feature that does not > increase the DRAM-driver size for boards that don’t need/want it. We have few boards do have TPL-runnable, would be any technical issue to switch puma to TPL? because we have lpddr4 code part of existing driver itself and it require extra ifdef to consider which indeed look awful from code point-of-view.
> On 11.06.2019, at 17:03, Jagan Teki <jagan@amarulasolutions.com> wrote: > > On Tue, Jun 11, 2019 at 8:23 PM Philipp Tomsich > <philipp.tomsich@theobroma-systems.com> wrote: >> >> >> >>> On 11.06.2019, at 16:50, Jagan Teki <jagan@amarulasolutions.com> wrote: >>> >>> Yes, it can be possible to break this series into multiple sub series >>> but idea here is to mark all the required changes to support LPDDR4 >>> in rk3399 in one set. if required we can break it from next versions. >>> >>> This is the initial set for supporting LPDDR4 with associated >>> features. >>> >>> Thanks to >>> - YouMin Chen >>> - Akash Gajjar >>> - Kever Yang >>> for supporting all the help on this work. >>> >>> On summary this series support >>> - Code warning and fixes >>> - rank detection, this would required to probe single channel >>> sdram configured in NanoPI-NEO4 >>> - LPDDR4 support, tested in Rockpro64 and Rock-PI-4 >>> >>> patch 0001 - 0033: fix code warnings, prints, new macros >>> >>> patch 0034 - 0051: rank detection, sdram debug code >>> >>> patch 0052: Use DDR3-1800 on NanoPI-NEO4 >>> >>> patch 0053 - 0089: lpddr4 support >>> >>> patch 0090: LPDDR4-100 timings >>> >>> patch 0091: Use LPDDR4-100 on Rockpro64 >>> >>> patch 0092: Use LPDDR4-100 on Rock-PI 4 >>> >>> Note: Puma rk3399 has SPL size overflow, better to enable TPL >>> for this board. >> >> We need to keep Puma on a SPL-only configuration for the time being. >> Please make sure that the LPDDR4 code is an optional feature that does not >> increase the DRAM-driver size for boards that don’t need/want it. > > We have few boards do have TPL-runnable, would be any technical issue > to switch puma to TPL? because we have lpddr4 code part of existing > driver itself and it require extra ifdef to consider which indeed look > awful from code point-of-view. Our secure boot process (i.e. signing tools) currently depends on this and the changeover won’t be quick… Thanks, Philipp.
On Tue, Jun 11, 2019 at 8:36 PM Philipp Tomsich <philipp.tomsich@theobroma-systems.com> wrote: > > > > > On 11.06.2019, at 17:03, Jagan Teki <jagan@amarulasolutions.com> wrote: > > > > On Tue, Jun 11, 2019 at 8:23 PM Philipp Tomsich > > <philipp.tomsich@theobroma-systems.com> wrote: > >> > >> > >> > >>> On 11.06.2019, at 16:50, Jagan Teki <jagan@amarulasolutions.com> wrote: > >>> > >>> Yes, it can be possible to break this series into multiple sub series > >>> but idea here is to mark all the required changes to support LPDDR4 > >>> in rk3399 in one set. if required we can break it from next versions. > >>> > >>> This is the initial set for supporting LPDDR4 with associated > >>> features. > >>> > >>> Thanks to > >>> - YouMin Chen > >>> - Akash Gajjar > >>> - Kever Yang > >>> for supporting all the help on this work. > >>> > >>> On summary this series support > >>> - Code warning and fixes > >>> - rank detection, this would required to probe single channel > >>> sdram configured in NanoPI-NEO4 > >>> - LPDDR4 support, tested in Rockpro64 and Rock-PI-4 > >>> > >>> patch 0001 - 0033: fix code warnings, prints, new macros > >>> > >>> patch 0034 - 0051: rank detection, sdram debug code > >>> > >>> patch 0052: Use DDR3-1800 on NanoPI-NEO4 > >>> > >>> patch 0053 - 0089: lpddr4 support > >>> > >>> patch 0090: LPDDR4-100 timings > >>> > >>> patch 0091: Use LPDDR4-100 on Rockpro64 > >>> > >>> patch 0092: Use LPDDR4-100 on Rock-PI 4 > >>> > >>> Note: Puma rk3399 has SPL size overflow, better to enable TPL > >>> for this board. > >> > >> We need to keep Puma on a SPL-only configuration for the time being. > >> Please make sure that the LPDDR4 code is an optional feature that does not > >> increase the DRAM-driver size for boards that don’t need/want it. > > > > We have few boards do have TPL-runnable, would be any technical issue > > to switch puma to TPL? because we have lpddr4 code part of existing > > driver itself and it require extra ifdef to consider which indeed look > > awful from code point-of-view. > > Our secure boot process (i.e. signing tools) currently depends on this and > the changeover won’t be quick… Not so quick, we have time till MW. isn't it possible? enabling secure tools in both TPL and SPL or TPL-alone would be meaningful trail. what do you think?
Hi Jagan, Very grateful for you to send this patch set for LPDDR4 support. But, 92 patches, a little bit too much for merge them one by one, is it possible for U-Boot to merge this from somewhere after we review all these patches? Thanks, - Kever On 06/11/2019 10:50 PM, Jagan Teki wrote: > Yes, it can be possible to break this series into multiple sub series > but idea here is to mark all the required changes to support LPDDR4 > in rk3399 in one set. if required we can break it from next versions. > > This is the initial set for supporting LPDDR4 with associated > features. > > Thanks to > - YouMin Chen > - Akash Gajjar > - Kever Yang > for supporting all the help on this work. > > On summary this series support > - Code warning and fixes > - rank detection, this would required to probe single channel > sdram configured in NanoPI-NEO4 > - LPDDR4 support, tested in Rockpro64 and Rock-PI-4 > > patch 0001 - 0033: fix code warnings, prints, new macros > > patch 0034 - 0051: rank detection, sdram debug code > > patch 0052: Use DDR3-1800 on NanoPI-NEO4 > > patch 0053 - 0089: lpddr4 support > > patch 0090: LPDDR4-100 timings > > patch 0091: Use LPDDR4-100 on Rockpro64 > > patch 0092: Use LPDDR4-100 on Rock-PI 4 > > Note: Puma rk3399 has SPL size overflow, better to enable TPL > for this board. > > Any inputs? > Jagan. > > Jagan Teki (92): > ram: rk3399: Fix code warnings > ram: rk3399: Add space between string with format specifier > ram: rk3399: Add proper spaces in data training > ram: rk3399: Handle data training return types > ram: rk3399: Order include files > ram: rk3399: Move macro after include files > ram: rk3399: Clear PI_175 interrupts in data training > ram: rk3399: Use rank mask in ca data training > ram: rk3399: Use rank mask in wdql data training > ram: rk3399: Add ddrtype enc macro > ram: rk3399: Add channel number encoder macro > ram: rk3399: Add row_3_4 enc macro > ram: rk3399: Add chipinfo macro > ram: rk3399: Add rank enc macro > ram: rk3399: Add column enc macro > ram: rk3399: Add bk enc macro > ram: rk3399: Add dbw enc macro > ram: rk3399: Add cs0_rw macro > ram: rk3399: Add cs1_rw macro > ram: rk3399: Add bw enc macro > ram: rk3399: Rename sys_reg with sys_reg2 > ram: rk3399: Update cs0_row to use sys_reg3 > ram: rk3399: Update cs1_row to use sys_reg3 > ram: rk3399: Add cs1_col enc macro > ram: rk3399: Add ddr version enc macro > ram: rk3399: Add ddrtimingC0 > ram: rk3399: Add DdrMode > ram: rk3399: Handle pctl_cfg return type > ram: rk3399: s/tsel_wr_select_n/tsel_wr_select_dq_n > ram: rk3399: s/tsel_wr_select_p/tsel_wr_select_dq_p > ram: rk3399: s/ca_tsel_wr_select_n/tsel_wr_select_ca_n > ram: rk3399: s/ca_tsel_wr_select_p/tsel_wr_select_ca_p > ram: rk3399: Order tsel variables > ram: rk3399: Add phy pctrl reset support > ram: rk3399: Move pwrup_srefresh_exit to dram_info > ram: rk3399: Add pctl start support > ram: rockchip: rk3399: Add cap_info structure > ram: rk3399: s/rk3399_base_params/sdram_base_params > ram: rk3399: Move common sdram structures in common header > arm: include: rockchip: Move dramtypes to common header > arm: include: rockchip: Add DDR4 enum > ram: rockchip: Add initial Kconfig > debug_uart: Add printdec > ram: rockchip: Add debug sdram driver > ram: rockchip: debug: Add sdram_print_ddr_info > ram: rockchip: debug: Get the cs capacity > ram: rk3399: debug: Add sdram_print_stride > ram: rk3399: Compute stride for 2 channels > ram: rk3399: Compute stride for 1 channel a > ram: rk3399: Add rank detection support > ram: rk3399: Enable sdram debug functions > rockchip: dts: rk3399: nanopi-neo4: Use DDR3-1866 dtsi > clk: rockchip: rk3399: Fix check patch warnings and checks > clk: rockchip: rk3399: Set 50MHz ddr clock > clk: rockchip: rk3399: Set 400MHz ddr clock > ram: rk3399: Add spaces in pctl_cfg > ram: rk3399: Configure phy IO in ds odt > ram: rk3399: Add lpddr4 rank mask for cs training > ram: rk3399: Add lpddr4 rank mask for wdql training > ram: rk3399: Move mode_sel assignment > ram: rk3399: Don't wait for PLL lock in lpddr4 > ram: rk3399: Avoid two channel ZQ Cal Start at the same time > ram: rk3399: Configure PHY_898, PHY_919 for lpddr4 > ram: rk3399: Configure BOOSTP_EN, BOOSTN_EN for lpddr4 > ram: rk3399: Configure SLEWP_EN, SLEWN_EN for lpddr4 > ram: rk3399: Configure PHY RX_CM_INPUT for lpddr4 > ram: rk3399: Map chipselect for lpddr4 > ram: rk3399: Configure tsel write ca for lpddr4 > ram: rk3399: Don't disable dfi dram clk for lpddr4, rank 1 > ram: rk3399: Add IO settings > ram: sdram: Configure lpddr4 tsel rd, wr based on IO settings > ram: rk3399: Add tsel control clock drive > ram: rk3399: Configure soc odt support > ram: rk3399: Get lpddr4 tsel_rd_en from io settings > ram: rk3399: Update lpddr4 vref based on io settings > ram: rk3399: Update lpddr4 mode_sel based on io settings > ram: rk3399: Update lpddr4 vref_mode_ac > ram: rk3399: Add LPPDR4 mr detection > arm: include: rockchip: Add rk3399 pmu file > rockchip: rk3399: syscon: Add pmu support > rockchip: dts: rk3399: Add u-boot,dm-pre-reloc for pmu > ram: rk3399: Add LPPDDR4-400 timings inc > ram: rk3399: Add LPPDDR4-800 timings inc > ram: rk3399: Add lpddr4 set rate support > ram: rk3399: Set lpddr4 dq odt > ram: rk3399: Set lpddr4 ca odt > ram: rk3399: Set lpddr4 MR3 > ram: rk3399: Set lpddr4 MR12 > ram: rk3399: Set lpddr4 MR14 > rockchip: dts: rk3399: Add LPDDR4-100 timings > rockchip: dts: rk3399: rockpro64: Use LPDDR4-100 dtsi > rockchip: dts: rk3399: rock-pi-4: Use LPDDR4-100 dtsi > > arch/arm/dts/rk3399-nanopi-neo4-u-boot.dtsi | 1 + > arch/arm/dts/rk3399-rock-pi-4-u-boot.dtsi | 1 + > arch/arm/dts/rk3399-rockpro64-u-boot.dtsi | 1 + > arch/arm/dts/rk3399-sdram-lpddr4-100.dtsi | 1537 ++++++++++++ > arch/arm/dts/rk3399-u-boot.dtsi | 4 + > .../include/asm/arch-rockchip/pmu_rk3399.h | 72 + > arch/arm/include/asm/arch-rockchip/sdram.h | 6 - > .../include/asm/arch-rockchip/sdram_common.h | 89 + > .../include/asm/arch-rockchip/sdram_rk322x.h | 7 - > .../include/asm/arch-rockchip/sdram_rk3399.h | 65 +- > arch/arm/mach-rockchip/rk3399/syscon_rk3399.c | 8 + > drivers/clk/rockchip/clk_rk3399.c | 76 +- > drivers/ram/Kconfig | 1 + > drivers/ram/rockchip/Kconfig | 26 + > drivers/ram/rockchip/Makefile | 3 +- > .../ram/rockchip/sdram-rk3399-lpddr4-400.inc | 1570 ++++++++++++ > .../ram/rockchip/sdram-rk3399-lpddr4-800.inc | 1570 ++++++++++++ > drivers/ram/rockchip/sdram_debug.c | 147 ++ > drivers/ram/rockchip/sdram_rk3399.c | 2176 ++++++++++++++--- > include/debug_uart.h | 19 + > 20 files changed, 6964 insertions(+), 415 deletions(-) > create mode 100644 arch/arm/dts/rk3399-sdram-lpddr4-100.dtsi > create mode 100644 arch/arm/include/asm/arch-rockchip/pmu_rk3399.h > create mode 100644 drivers/ram/rockchip/Kconfig > create mode 100644 drivers/ram/rockchip/sdram-rk3399-lpddr4-400.inc > create mode 100644 drivers/ram/rockchip/sdram-rk3399-lpddr4-800.inc > create mode 100644 drivers/ram/rockchip/sdram_debug.c >
On Thu, Jun 13, 2019 at 7:14 AM Kever Yang <kever.yang@rock-chips.com> wrote: > > Hi Jagan, > > Very grateful for you to send this patch set for LPDDR4 support. > > But, 92 patches, a little bit too much for merge them one by one, > > is it possible for U-Boot to merge this from somewhere after we review > > all these patches? Applying entire series still not working for me via pwclient or git-pw, but I usually create a bundle and apply them in single instant like as below ₹ git config pw.server https://patchwork.ozlabs.org/ ₹ git config pw.project uboot ₹ git config pw.username ₹ git config pw.password ₹ git-pw bundle list ₹ git-pw bundle apply <id>
On Thu, Jun 13, 2019 at 7:21 AM Kever Yang <kever.yang@rock-chips.com> wrote: > > Hi Jagan, > > > On 06/11/2019 11:03 PM, Jagan Teki wrote: > > Note: Puma rk3399 has SPL size overflow, better to enable TPL > for this board. > > We need to keep Puma on a SPL-only configuration for the time being. > Please make sure that the LPDDR4 code is an optional feature that does not > increase the DRAM-driver size for boards that don’t need/want it. > > We have few boards do have TPL-runnable, would be any technical issue > to switch puma to TPL? because we have lpddr4 code part of existing > driver itself and it require extra ifdef to consider which indeed look > awful from code point-of-view. > > Dose the driver size increase too much for Puma because of the lpddr4 > init logic or because of the two extra timing data? The two timing data > are pretty big, maybe we do not need them if the board is not lpddr4? Yes, along with the code that support set rate for lpddr4. Still thinking how we can manage to mark the lpddr4 changes independent, marking ifdef in all the code look awful. let me know if you have any inputs?