diff options
Diffstat (limited to 'arch/arm')
-rw-r--r-- | arch/arm/dts/rk3328-sdram-ddr3-666.dtsi | 4 | ||||
-rw-r--r-- | arch/arm/dts/rk3328-sdram-lpddr3-1600.dtsi | 4 | ||||
-rw-r--r-- | arch/arm/dts/rk3328-sdram-lpddr3-666.dtsi | 4 | ||||
-rw-r--r-- | arch/arm/include/asm/arch-rockchip/sdram_rk3328.h | 419 | ||||
-rw-r--r-- | arch/arm/mach-rockchip/Kconfig | 1 |
5 files changed, 134 insertions, 298 deletions
diff --git a/arch/arm/dts/rk3328-sdram-ddr3-666.dtsi b/arch/arm/dts/rk3328-sdram-ddr3-666.dtsi index d99e7e0352..3e88ed443b 100644 --- a/arch/arm/dts/rk3328-sdram-ddr3-666.dtsi +++ b/arch/arm/dts/rk3328-sdram-ddr3-666.dtsi @@ -14,6 +14,8 @@ 0x0 0x10 0x10 + 0x10 + 0x10 0 0x9028b189 @@ -26,6 +28,8 @@ 333 3 + 1 + 0 0 0x00000000 diff --git a/arch/arm/dts/rk3328-sdram-lpddr3-1600.dtsi b/arch/arm/dts/rk3328-sdram-lpddr3-1600.dtsi index cc0011cf7b..d63c761a02 100644 --- a/arch/arm/dts/rk3328-sdram-lpddr3-1600.dtsi +++ b/arch/arm/dts/rk3328-sdram-lpddr3-1600.dtsi @@ -14,6 +14,8 @@ 0x0 0x10 0x10 + 0x10 + 0x10 0 0x98899459 @@ -27,6 +29,8 @@ 800 6 1 + 0 + 1 0x00000000 0x43041008 diff --git a/arch/arm/dts/rk3328-sdram-lpddr3-666.dtsi b/arch/arm/dts/rk3328-sdram-lpddr3-666.dtsi index 62d809e833..b9d3b3b948 100644 --- a/arch/arm/dts/rk3328-sdram-lpddr3-666.dtsi +++ b/arch/arm/dts/rk3328-sdram-lpddr3-666.dtsi @@ -14,6 +14,8 @@ 0x0 0x10 0x10 + 0x10 + 0x10 0 0x0c48a18a @@ -26,6 +28,8 @@ 333 6 + 1 + 0 0 0x00000000 diff --git a/arch/arm/include/asm/arch-rockchip/sdram_rk3328.h b/arch/arm/include/asm/arch-rockchip/sdram_rk3328.h index c747b461a1..10923505d6 100644 --- a/arch/arm/include/asm/arch-rockchip/sdram_rk3328.h +++ b/arch/arm/include/asm/arch-rockchip/sdram_rk3328.h @@ -7,197 +7,13 @@ #ifndef _ASM_ARCH_SDRAM_RK3328_H #define _ASM_ARCH_SDRAM_RK3328_H #include <asm/arch-rockchip/sdram_common.h> +#include <asm/arch-rockchip/sdram_pctl_px30.h> +#include <asm/arch-rockchip/sdram_phy_px30.h> +#include <asm/arch-rockchip/sdram_phy_ron_rtt_px30.h> #define SR_IDLE 93 #define PD_IDLE 13 #define SDRAM_ADDR 0x00000000 -#define PATTERN (0x5aa5f00f) - -/* ddr pctl registers define */ -#define DDR_PCTL2_MSTR 0x0 -#define DDR_PCTL2_STAT 0x4 -#define DDR_PCTL2_MSTR1 0x8 -#define DDR_PCTL2_MRCTRL0 0x10 -#define DDR_PCTL2_MRCTRL1 0x14 -#define DDR_PCTL2_MRSTAT 0x18 -#define DDR_PCTL2_MRCTRL2 0x1c -#define DDR_PCTL2_DERATEEN 0x20 -#define DDR_PCTL2_DERATEINT 0x24 -#define DDR_PCTL2_PWRCTL 0x30 -#define DDR_PCTL2_PWRTMG 0x34 -#define DDR_PCTL2_HWLPCTL 0x38 -#define DDR_PCTL2_RFSHCTL0 0x50 -#define DDR_PCTL2_RFSHCTL1 0x54 -#define DDR_PCTL2_RFSHCTL2 0x58 -#define DDR_PCTL2_RFSHCTL4 0x5c -#define DDR_PCTL2_RFSHCTL3 0x60 -#define DDR_PCTL2_RFSHTMG 0x64 -#define DDR_PCTL2_RFSHTMG1 0x68 -#define DDR_PCTL2_RFSHCTL5 0x6c -#define DDR_PCTL2_INIT0 0xd0 -#define DDR_PCTL2_INIT1 0xd4 -#define DDR_PCTL2_INIT2 0xd8 -#define DDR_PCTL2_INIT3 0xdc -#define DDR_PCTL2_INIT4 0xe0 -#define DDR_PCTL2_INIT5 0xe4 -#define DDR_PCTL2_INIT6 0xe8 -#define DDR_PCTL2_INIT7 0xec -#define DDR_PCTL2_DIMMCTL 0xf0 -#define DDR_PCTL2_RANKCTL 0xf4 -#define DDR_PCTL2_CHCTL 0xfc -#define DDR_PCTL2_DRAMTMG0 0x100 -#define DDR_PCTL2_DRAMTMG1 0x104 -#define DDR_PCTL2_DRAMTMG2 0x108 -#define DDR_PCTL2_DRAMTMG3 0x10c -#define DDR_PCTL2_DRAMTMG4 0x110 -#define DDR_PCTL2_DRAMTMG5 0x114 -#define DDR_PCTL2_DRAMTMG6 0x118 -#define DDR_PCTL2_DRAMTMG7 0x11c -#define DDR_PCTL2_DRAMTMG8 0x120 -#define DDR_PCTL2_DRAMTMG9 0x124 -#define DDR_PCTL2_DRAMTMG10 0x128 -#define DDR_PCTL2_DRAMTMG11 0x12c -#define DDR_PCTL2_DRAMTMG12 0x130 -#define DDR_PCTL2_DRAMTMG13 0x134 -#define DDR_PCTL2_DRAMTMG14 0x138 -#define DDR_PCTL2_DRAMTMG15 0x13c -#define DDR_PCTL2_DRAMTMG16 0x140 -#define DDR_PCTL2_ZQCTL0 0x180 -#define DDR_PCTL2_ZQCTL1 0x184 -#define DDR_PCTL2_ZQCTL2 0x188 -#define DDR_PCTL2_ZQSTAT 0x18c -#define DDR_PCTL2_DFITMG0 0x190 -#define DDR_PCTL2_DFITMG1 0x194 -#define DDR_PCTL2_DFILPCFG0 0x198 -#define DDR_PCTL2_DFILPCFG1 0x19c -#define DDR_PCTL2_DFIUPD0 0x1a0 -#define DDR_PCTL2_DFIUPD1 0x1a4 -#define DDR_PCTL2_DFIUPD2 0x1a8 -#define DDR_PCTL2_DFIMISC 0x1b0 -#define DDR_PCTL2_DFITMG2 0x1b4 -#define DDR_PCTL2_DFITMG3 0x1b8 -#define DDR_PCTL2_DFISTAT 0x1bc -#define DDR_PCTL2_DBICTL 0x1c0 -#define DDR_PCTL2_ADDRMAP0 0x200 -#define DDR_PCTL2_ADDRMAP1 0x204 -#define DDR_PCTL2_ADDRMAP2 0x208 -#define DDR_PCTL2_ADDRMAP3 0x20c -#define DDR_PCTL2_ADDRMAP4 0x210 -#define DDR_PCTL2_ADDRMAP5 0x214 -#define DDR_PCTL2_ADDRMAP6 0x218 -#define DDR_PCTL2_ADDRMAP7 0x21c -#define DDR_PCTL2_ADDRMAP8 0x220 -#define DDR_PCTL2_ADDRMAP9 0x224 -#define DDR_PCTL2_ADDRMAP10 0x228 -#define DDR_PCTL2_ADDRMAP11 0x22c -#define DDR_PCTL2_ODTCFG 0x240 -#define DDR_PCTL2_ODTMAP 0x244 -#define DDR_PCTL2_SCHED 0x250 -#define DDR_PCTL2_SCHED1 0x254 -#define DDR_PCTL2_PERFHPR1 0x25c -#define DDR_PCTL2_PERFLPR1 0x264 -#define DDR_PCTL2_PERFWR1 0x26c -#define DDR_PCTL2_DQMAP0 0x280 -#define DDR_PCTL2_DQMAP1 0x284 -#define DDR_PCTL2_DQMAP2 0x288 -#define DDR_PCTL2_DQMAP3 0x28c -#define DDR_PCTL2_DQMAP4 0x290 -#define DDR_PCTL2_DQMAP5 0x294 -#define DDR_PCTL2_DBG0 0x300 -#define DDR_PCTL2_DBG1 0x304 -#define DDR_PCTL2_DBGCAM 0x308 -#define DDR_PCTL2_DBGCMD 0x30c -#define DDR_PCTL2_DBGSTAT 0x310 -#define DDR_PCTL2_SWCTL 0x320 -#define DDR_PCTL2_SWSTAT 0x324 -#define DDR_PCTL2_POISONCFG 0x36c -#define DDR_PCTL2_POISONSTAT 0x370 -#define DDR_PCTL2_ADVECCINDEX 0x374 -#define DDR_PCTL2_ADVECCSTAT 0x378 -#define DDR_PCTL2_PSTAT 0x3fc -#define DDR_PCTL2_PCCFG 0x400 -#define DDR_PCTL2_PCFGR_n 0x404 -#define DDR_PCTL2_PCFGW_n 0x408 -#define DDR_PCTL2_PCTRL_n 0x490 - -/* PCTL2_MRSTAT */ -#define MR_WR_BUSY BIT(0) - -/* PHY_REG0 */ -#define DIGITAL_DERESET BIT(3) -#define ANALOG_DERESET BIT(2) -#define DIGITAL_RESET (0 << 3) -#define ANALOG_RESET (0 << 2) - -/* PHY_REG1 */ -#define PHY_DDR2 (0) -#define PHY_LPDDR2 (1) -#define PHY_DDR3 (2) -#define PHY_LPDDR3 (3) -#define PHY_DDR4 (4) -#define PHY_BL_4 (0 << 2) -#define PHY_BL_8 BIT(2) - -/* PHY_REG2 */ -#define PHY_DTT_EN BIT(0) -#define PHY_DTT_DISB (0 << 0) -#define PHY_WRITE_LEVELING_EN BIT(2) -#define PHY_WRITE_LEVELING_DISB (0 << 2) -#define PHY_SELECT_CS0 (2) -#define PHY_SELECT_CS1 (1) -#define PHY_SELECT_CS0_1 (0) -#define PHY_WRITE_LEVELING_SELECTCS(n) (n << 6) -#define PHY_DATA_TRAINING_SELECTCS(n) (n << 4) - -#define PHY_DDR3_RON_RTT_DISABLE (0) -#define PHY_DDR3_RON_RTT_451ohm (1) -#define PHY_DDR3_RON_RTT_225ohm (2) -#define PHY_DDR3_RON_RTT_150ohm (3) -#define PHY_DDR3_RON_RTT_112ohm (4) -#define PHY_DDR3_RON_RTT_90ohm (5) -#define PHY_DDR3_RON_RTT_75ohm (6) -#define PHY_DDR3_RON_RTT_64ohm (7) -#define PHY_DDR3_RON_RTT_56ohm (16) -#define PHY_DDR3_RON_RTT_50ohm (17) -#define PHY_DDR3_RON_RTT_45ohm (18) -#define PHY_DDR3_RON_RTT_41ohm (19) -#define PHY_DDR3_RON_RTT_37ohm (20) -#define PHY_DDR3_RON_RTT_34ohm (21) -#define PHY_DDR3_RON_RTT_33ohm (22) -#define PHY_DDR3_RON_RTT_30ohm (23) -#define PHY_DDR3_RON_RTT_28ohm (24) -#define PHY_DDR3_RON_RTT_26ohm (25) -#define PHY_DDR3_RON_RTT_25ohm (26) -#define PHY_DDR3_RON_RTT_23ohm (27) -#define PHY_DDR3_RON_RTT_22ohm (28) -#define PHY_DDR3_RON_RTT_21ohm (29) -#define PHY_DDR3_RON_RTT_20ohm (30) -#define PHY_DDR3_RON_RTT_19ohm (31) - -#define PHY_DDR4_LPDDR3_RON_RTT_DISABLE (0) -#define PHY_DDR4_LPDDR3_RON_RTT_480ohm (1) -#define PHY_DDR4_LPDDR3_RON_RTT_240ohm (2) -#define PHY_DDR4_LPDDR3_RON_RTT_160ohm (3) -#define PHY_DDR4_LPDDR3_RON_RTT_120ohm (4) -#define PHY_DDR4_LPDDR3_RON_RTT_96ohm (5) -#define PHY_DDR4_LPDDR3_RON_RTT_80ohm (6) -#define PHY_DDR4_LPDDR3_RON_RTT_68ohm (7) -#define PHY_DDR4_LPDDR3_RON_RTT_60ohm (16) -#define PHY_DDR4_LPDDR3_RON_RTT_53ohm (17) -#define PHY_DDR4_LPDDR3_RON_RTT_48ohm (18) -#define PHY_DDR4_LPDDR3_RON_RTT_43ohm (19) -#define PHY_DDR4_LPDDR3_RON_RTT_40ohm (20) -#define PHY_DDR4_LPDDR3_RON_RTT_37ohm (21) -#define PHY_DDR4_LPDDR3_RON_RTT_34ohm (22) -#define PHY_DDR4_LPDDR3_RON_RTT_32ohm (23) -#define PHY_DDR4_LPDDR3_RON_RTT_30ohm (24) -#define PHY_DDR4_LPDDR3_RON_RTT_28ohm (25) -#define PHY_DDR4_LPDDR3_RON_RTT_26ohm (26) -#define PHY_DDR4_LPDDR3_RON_RTT_25ohm (27) -#define PHY_DDR4_LPDDR3_RON_RTT_24ohm (28) -#define PHY_DDR4_LPDDR3_RON_RTT_22ohm (29) -#define PHY_DDR4_LPDDR3_RON_RTT_21ohm (30) -#define PHY_DDR4_LPDDR3_RON_RTT_20ohm (31) /* noc registers define */ #define DDRCONF 0x8 @@ -220,16 +36,16 @@ #define DDR_GRF_STATUS(n) (DDR_GRF_STATUS_BASE + (n) * 4) /* CRU_SOFTRESET_CON5 */ -#define ddrphy_psrstn_req(n) (((0x1 << 15) << 16) | (n << 15)) -#define ddrphy_srstn_req(n) (((0x1 << 14) << 16) | (n << 14)) -#define ddrctrl_psrstn_req(n) (((0x1 << 13) << 16) | (n << 13)) -#define ddrctrl_srstn_req(n) (((0x1 << 12) << 16) | (n << 12)) -#define ddrmsch_srstn_req(n) (((0x1 << 11) << 16) | (n << 11)) -#define msch_srstn_req(n) (((0x1 << 9) << 16) | (n << 9)) -#define dfimon_srstn_req(n) (((0x1 << 8) << 16) | (n << 8)) -#define grf_ddr_srstn_req(n) (((0x1 << 7) << 16) | (n << 7)) +#define ddrphy_psrstn_req(n) (((0x1 << 15) << 16) | ((n) << 15)) +#define ddrphy_srstn_req(n) (((0x1 << 14) << 16) | ((n) << 14)) +#define ddrctrl_psrstn_req(n) (((0x1 << 13) << 16) | ((n) << 13)) +#define ddrctrl_srstn_req(n) (((0x1 << 12) << 16) | ((n) << 12)) +#define ddrmsch_srstn_req(n) (((0x1 << 11) << 16) | ((n) << 11)) +#define msch_srstn_req(n) (((0x1 << 9) << 16) | ((n) << 9)) +#define dfimon_srstn_req(n) (((0x1 << 8) << 16) | ((n) << 8)) +#define grf_ddr_srstn_req(n) (((0x1 << 7) << 16) | ((n) << 7)) /* CRU_SOFTRESET_CON9 */ -#define ddrctrl_asrstn_req(n) (((0x1 << 9) << 16) | (n << 9)) +#define ddrctrl_asrstn_req(n) (((0x1 << 9) << 16) | ((n) << 9)) /* CRU register */ #define CRU_PLL_CON(pll_id, n) ((pll_id) * 0x20 + (n) * 4) @@ -256,56 +72,46 @@ #define POSTDIV2(n) ((0x7 << (6 + 16)) | ((n) << 6)) #define REFDIV(n) ((0x3F << 16) | (n)) -union noc_ddrtiming { - u32 d32; - struct { - unsigned acttoact:6; - unsigned rdtomiss:6; - unsigned wrtomiss:6; - unsigned burstlen:3; - unsigned rdtowr:5; - unsigned wrtord:5; - unsigned bwratio:1; - } b; -} NOC_TIMING_T; - -union noc_activate { - u32 d32; - struct { - unsigned rrd:4; - unsigned faw:6; - unsigned fawbank:1; - unsigned reserved1:21; - } b; -}; - -union noc_devtodev { - u32 d32; - struct { - unsigned busrdtord:2; - unsigned busrdtowr:2; - unsigned buswrtord:2; - unsigned reserved2:26; - } b; -}; - -union noc_ddr4timing { - u32 d32; - struct { - unsigned ccdl:3; - unsigned wrtordl:5; - unsigned rrdl:4; - unsigned reserved2:20; - } b; +u16 ddr_cfg_2_rbc[] = { + /* + * [5:4] row(13+n) + * [3] cs(0:0 cs, 1:2 cs) + * [2] bank(0:0bank,1:8bank) + * [1:0] col(11+n) + */ + /* row, cs, bank, col */ + ((3 << 4) | (0 << 3) | (1 << 2) | 0), + ((3 << 4) | (0 << 3) | (1 << 2) | 1), + ((2 << 4) | (0 << 3) | (1 << 2) | 2), + ((3 << 4) | (0 << 3) | (1 << 2) | 2), + ((2 << 4) | (0 << 3) | (1 << 2) | 3), + ((3 << 4) | (1 << 3) | (1 << 2) | 0), + ((3 << 4) | (1 << 3) | (1 << 2) | 1), + ((2 << 4) | (1 << 3) | (1 << 2) | 2), + ((3 << 4) | (0 << 3) | (0 << 2) | 1), + ((2 << 4) | (0 << 3) | (1 << 2) | 1), }; -union noc_ddrmode { - u32 d32; - struct { - unsigned autoprecharge:1; - unsigned bwratioextended:1; - unsigned reserved3:30; - } b; +u16 ddr4_cfg_2_rbc[] = { + /*************************** + * [6] cs 0:0cs 1:2 cs + * [5:3] row(13+n) + * [2] cs(0:0 cs, 1:2 cs) + * [1] bw 0: 16bit 1:32bit + * [0] diebw 0:8bit 1:16bit + ***************************/ + /* cs, row, cs, bw, diebw */ + ((0 << 6) | (3 << 3) | (0 << 2) | (1 << 1) | 0), + ((1 << 6) | (2 << 3) | (0 << 2) | (1 << 1) | 0), + ((0 << 6) | (4 << 3) | (0 << 2) | (0 << 1) | 0), + ((1 << 6) | (3 << 3) | (0 << 2) | (0 << 1) | 0), + ((0 << 6) | (4 << 3) | (0 << 2) | (1 << 1) | 1), + ((1 << 6) | (3 << 3) | (0 << 2) | (1 << 1) | 1), + ((1 << 6) | (4 << 3) | (0 << 2) | (0 << 1) | 1), + ((0 << 6) | (2 << 3) | (1 << 2) | (1 << 1) | 0), + ((0 << 6) | (3 << 3) | (1 << 2) | (0 << 1) | 0), + ((0 << 6) | (3 << 3) | (1 << 2) | (1 << 1) | 1), + ((0 << 6) | (4 << 3) | (1 << 2) | (0 << 1) | 1), }; u32 addrmap[21][9] = { @@ -356,17 +162,65 @@ u32 addrmap[21][9] = { 0x07070707, 0x00000f07, 0x3f00} }; -struct rk3328_msch_timings { - union noc_ddrtiming ddrtiming; - union noc_ddrmode ddrmode; - u32 readlatency; - union noc_activate activate; - union noc_devtodev devtodev; - union noc_ddr4timing ddr4timing; - u32 agingx0; +struct rk3328_ddr_grf_regs { + u32 ddr_grf_con[4]; + u32 reserved[(0x100 - 0x10) / 4]; + u32 ddr_grf_status[11]; }; -struct rk3328_msch_regs { +union noc_ddrtiming { + u32 d32; + struct { + unsigned acttoact:6; + unsigned rdtomiss:6; + unsigned wrtomiss:6; + unsigned burstlen:3; + unsigned rdtowr:5; + unsigned wrtord:5; + unsigned bwratio:1; + } b; +}; + +union noc_activate { + u32 d32; + struct { + unsigned rrd:4; + unsigned faw:6; + unsigned fawbank:1; + unsigned reserved1:21; + } b; +}; + +union noc_devtodev { + u32 d32; + struct { + unsigned busrdtord:2; + unsigned busrdtowr:2; + unsigned buswrtord:2; + unsigned reserved2:26; + } b; +}; + +union noc_ddr4timing { + u32 d32; + struct { + unsigned ccdl:3; + unsigned wrtordl:5; + unsigned rrdl:4; + unsigned reserved2:20; + } b; +}; + +union noc_ddrmode { + u32 d32; + struct { + unsigned autoprecharge:1; + unsigned bwratioextended:1; + unsigned reserved3:30; + } b; +}; + +struct msch_regs { u32 coreid; u32 revisionid; u32 ddrconf; @@ -385,58 +239,27 @@ struct rk3328_msch_regs { u32 ddr4_timing; }; -struct rk3328_ddr_grf_regs { - u32 ddr_grf_con[4]; - u32 reserved[(0x100 - 0x10) / 4]; - u32 ddr_grf_status[11]; -}; - -struct rk3328_ddr_pctl_regs { - u32 pctl[30][2]; -}; - -struct rk3328_ddr_phy_regs { - u32 phy[5][2]; -}; - -struct rk3328_ddr_skew { - u32 a0_a1_skew[15]; - u32 cs0_dm0_skew[11]; - u32 cs0_dm1_skew[11]; - u32 cs0_dm2_skew[11]; - u32 cs0_dm3_skew[11]; - u32 cs1_dm0_skew[11]; - u32 cs1_dm1_skew[11]; - u32 cs1_dm2_skew[11]; - u32 cs1_dm3_skew[11]; +struct sdram_msch_timings { + union noc_ddrtiming ddrtiming; + union noc_ddrmode ddrmode; + u32 readlatency; + union noc_activate activate; + union noc_devtodev devtodev; + union noc_ddr4timing ddr4timing; + u32 agingx0; }; struct rk3328_sdram_channel { - unsigned int rank; - unsigned int col; - /* 3:8bank, 2:4bank */ - unsigned int bk; - /* channel buswidth, 2:32bit, 1:16bit, 0:8bit */ - unsigned int bw; - /* die buswidth, 2:32bit, 1:16bit, 0:8bit */ - unsigned int dbw; - unsigned int row_3_4; - unsigned int cs0_row; - unsigned int cs1_row; - unsigned int ddrconfig; - struct rk3328_msch_timings noc_timings; + struct sdram_cap_info cap_info; + struct sdram_msch_timings noc_timings; }; struct rk3328_sdram_params { struct rk3328_sdram_channel ch; - unsigned int ddr_freq; - unsigned int dramtype; - unsigned int odt; - struct rk3328_ddr_pctl_regs pctl_regs; - struct rk3328_ddr_phy_regs phy_regs; - struct rk3328_ddr_skew skew; + struct sdram_base_params base; + struct ddr_pctl_regs pctl_regs; + struct ddr_phy_regs phy_regs; + struct ddr_phy_skew skew; }; -#define PHY_REG(base, n) (base + 4 * (n)) - #endif diff --git a/arch/arm/mach-rockchip/Kconfig b/arch/arm/mach-rockchip/Kconfig index f5a80b4f0c..5f1ad51cac 100644 --- a/arch/arm/mach-rockchip/Kconfig +++ b/arch/arm/mach-rockchip/Kconfig @@ -115,6 +115,7 @@ config ROCKCHIP_RK3328 select TPL_NEEDS_SEPARATE_TEXT_BASE if TPL select TPL_NEEDS_SEPARATE_STACK if TPL imply ROCKCHIP_COMMON_BOARD + imply ROCKCHIP_SDRAM_COMMON imply SPL_ROCKCHIP_COMMON_BOARD imply SPL_SERIAL_SUPPORT imply TPL_SERIAL_SUPPORT |