tcl: am437x: add reset-init event handler
authorFelipe Balbi <balbi@ti.com>
Mon, 16 Mar 2015 23:50:55 +0000 (18:50 -0500)
committerPaul Fertser <fercerpav@gmail.com>
Tue, 14 Apr 2015 10:15:57 +0000 (11:15 +0100)
this event handler will configure and lock PLLs
and configure DDR so platform is placed in usable
state.

Change-Id: Idd02f4c9789181d69578f8606ac3576ea1dd8a0b
Tested-by: Tom Rini <trini@konsulko.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Reviewed-on: http://openocd.zylin.com/2616
Tested-by: jenkins
Reviewed-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Paul Fertser <fercerpav@gmail.com>
tcl/target/am437x.cfg

index ee62ef9290cd5ae804fd8c21611721a507337476..75c13e4b87ff67cfa3d209ec6d7ffbff97a36b9e 100644 (file)
@@ -508,5 +508,487 @@ proc disable_watchdog { } {
        }
 }
 
+proc ceil { x y } {
+       return [ expr ($x + $y - 1) / $y ]
+}
+
+proc device_type { } {
+       global CONTROL_STATUS
+
+       set tmp [ mrw $CONTROL_STATUS ]
+       set tmp [ expr $tmp & 0x700 ]
+       set tmp [ expr $tmp >> 8 ]
+
+       return $tmp
+}
+
+proc get_input_clock_frequency { } {
+       global CONTROL_STATUS
+
+       if { [ device_type ] != 3 } {
+               error "Unknown device type\n"
+               return -1
+       }
+
+       set freq [ mrw $CONTROL_STATUS ]
+       set freq [ expr $freq & 0x00c00000 ]
+       set freq [ expr $freq >> 22 ]
+
+       switch $freq {
+               0 {
+                       set CLKIN 19200000
+               }
+
+               1 {
+                       set CLKIN 24000000
+               }
+
+               2 {
+                       set CLKIN 25000000
+               }
+
+               3 {
+                       set CLKIN 26000000
+               }
+       }
+
+       return $CLKIN
+}
+
+proc mpu_pll_config { CLKIN N M M2 } {
+       global CM_CLKMODE_DPLL_MPU
+       global CM_CLKSEL_DPLL_MPU
+       global CM_DIV_M2_DPLL_MPU
+       global CM_IDLEST_DPLL_MPU
+
+       set clksel [ mrw $CM_CLKSEL_DPLL_MPU ]
+       set div_m2 [ mrw $CM_DIV_M2_DPLL_MPU ]
+
+       mww $CM_CLKMODE_DPLL_MPU 0x4
+       while { !([ mrw $CM_IDLEST_DPLL_MPU ] & 0x0100) } { }
+
+       set clksel [ expr $clksel & (~0x7ffff) ]
+       set clksel [ expr $clksel | ($M << 0x8) | $N ]
+       mww $CM_CLKSEL_DPLL_MPU $clksel
+
+       set div_m2 [ expr $div_m2 & (~0x1f) ]
+       set div_m2 [ expr $div_m2 | $M2 ]
+       mww $CM_DIV_M2_DPLL_MPU $div_m2
+
+       mww $CM_CLKMODE_DPLL_MPU 0x7
+       while { [ mrw $CM_IDLEST_DPLL_MPU ] != 1 } { }
+
+       echo "MPU DPLL locked"
+}
+
+proc core_pll_config { CLKIN N M M4 M5 M6 } {
+       global CM_CLKMODE_DPLL_CORE
+       global CM_CLKSEL_DPLL_CORE
+       global CM_DIV_M4_DPLL_CORE
+       global CM_DIV_M5_DPLL_CORE
+       global CM_DIV_M6_DPLL_CORE
+       global CM_IDLEST_DPLL_CORE
+
+       set clksel [ mrw $CM_CLKSEL_DPLL_CORE ]
+
+       mww $CM_CLKMODE_DPLL_CORE 0x4
+       while { !([ mrw $CM_IDLEST_DPLL_CORE ] & 0x0100) } { }
+
+       set clksel [ expr $clksel & (~0x7ffff) ]
+       set clksel [ expr $clksel | ($M << 0x8) | $N ]
+       mww $CM_CLKSEL_DPLL_CORE $clksel
+       mww $CM_DIV_M4_DPLL_CORE $M4
+       mww $CM_DIV_M5_DPLL_CORE $M5
+       mww $CM_DIV_M6_DPLL_CORE $M6
+
+       mww $CM_CLKMODE_DPLL_CORE 0x7
+       while { !([ mrw $CM_IDLEST_DPLL_CORE ] & 0x01) } { }
+
+       echo "CORE DPLL locked"
+}
+
+proc per_pll_config { CLKIN N M M2 } {
+       global CM_CLKMODE_DPLL_PER
+       global CM_CLKSEL_DPLL_PER
+       global CM_DIV_M2_DPLL_PER
+       global CM_IDLEST_DPLL_PER
+
+       set x [ expr $M * $CLKIN / 1000000 ]
+       set y [ expr ($N + 1) * 250 ]
+       set sd [ ceil $x $y ]
+
+       set clksel [ mrw $CM_CLKSEL_DPLL_PER ]
+       set div_m2 [ mrw $CM_DIV_M2_DPLL_PER ]
+
+       mww $CM_CLKMODE_DPLL_PER 0x4
+       while { !([ mrw $CM_IDLEST_DPLL_PER ] & 0x0100) } { }
+
+       set clksel [ expr $clksel & (~0xff0fffff) ]
+       set clksel [ expr $clksel | ($M << 0x8) | $N ]
+       set clksel [ expr $clksel | ($sd << 24) ]
+       mww $CM_CLKSEL_DPLL_PER $clksel
+
+       set div_m2 [ expr 0xffffff80 | $M2 ]
+
+       mww $CM_CLKMODE_DPLL_PER 0x7
+       while { !([ mrw $CM_IDLEST_DPLL_PER ] & 0x01) } { }
+
+       echo "PER DPLL locked"
+}
+
+proc ddr_pll_config { CLKIN N M M2 M4 } {
+       global CM_CLKMODE_DPLL_DDR
+       global CM_CLKSEL_DPLL_DDR
+       global CM_DIV_M2_DPLL_DDR
+       global CM_DIV_M4_DPLL_DDR
+       global CM_IDLEST_DPLL_DDR
+
+       set clksel [ mrw $CM_CLKSEL_DPLL_DDR ]
+       set div_m2 [ mrw $CM_DIV_M2_DPLL_DDR ]
+
+       mww $CM_CLKMODE_DPLL_DDR 0x4
+       while { !([ mrw $CM_IDLEST_DPLL_DDR ] & 0x0100) } { }
+
+       set clksel [ expr $clksel & (~0x7ffff) ]
+       set clksel [ expr $clksel | ($M << 8) | $N ]
+       mww $CM_CLKSEL_DPLL_DDR $clksel
+
+       set div_m2 [ expr ($div_m2 & 0xffffffe0) | $M2 ]
+       mww $CM_DIV_M2_DPLL_DDR $div_m2
+       mww $CM_DIV_M4_DPLL_DDR $M4
+
+       mww $CM_CLKMODE_DPLL_DDR 0x7
+       while { !([ mrw $CM_IDLEST_DPLL_DDR ] & 0x01) } { }
+
+       echo "DDR DPLL Locked"
+}
+
+proc config_opp100 { } {
+       set CLKIN [ get_input_clock_frequency ]
+
+       if { $CLKIN == -1 } {
+               return -1
+       }
+
+       switch $CLKIN {
+               24000000 {
+                       mpu_pll_config   $CLKIN  0  25   1
+                       core_pll_config  $CLKIN  2  125  10  8  4
+                       per_pll_config   $CLKIN  9  400  5
+                       ddr_pll_config   $CLKIN  2  50   1   2
+               }
+
+               25000000 {
+                       mpu_pll_config   $CLKIN  0  24   1
+                       core_pll_config  $CLKIN  0  40   10  8  4
+                       per_pll_config   $CLKIN  9  384  5
+                       ddr_pll_config   $CLKIN  0  16   1   2
+               }
+
+               26000000 {
+                       mpu_pll_config   $CLKIN  12  300  1
+                       core_pll_config  $CLKIN  12  500  10  8  4
+                       per_pll_config   $CLKIN  12  480  5
+                       ddr_pll_config   $CLKIN  12  200  1   2
+               }
+
+               19200000 {
+                       mpu_pll_config   $CLKIN  3   125  1
+                       core_pll_config  $CLKIN  11  625  10  8  4
+                       per_pll_config   $CLKIN  7   400  5
+                       ddr_pll_config   $CLKIN  2   125  1   2
+               }
+       }
+}
+
+proc emif_prcm_clk_enable { } {
+       global CM_PER_EMIF_FW_CLKCTRL
+       global CM_PER_EMIF_CLKCTRL
+
+       mww $CM_PER_EMIF_FW_CLKCTRL 0x02
+       mww $CM_PER_EMIF_CLKCTRL 0x02
+
+       while { [ mrw $CM_PER_EMIF_CLKCTRL ] != 0x02 } { }
+}
+
+proc vtp_enable { } {
+       global VTP_CTRL_REG
+
+       set vtp [ expr [ mrw $VTP_CTRL_REG ] | 0x40 ]
+       mww $VTP_CTRL_REG $vtp
+
+       set vtp [ expr [ mrw $VTP_CTRL_REG ] & ~0x01 ]
+       mww $VTP_CTRL_REG $vtp
+
+       set vtp [ expr [ mrw $VTP_CTRL_REG ] | 0x01 ]
+       mww $VTP_CTRL_REG $vtp
+
+}
+
+proc config_ddr_ioctrl { } {
+       global DDR_ADDRCTRL_IOCTRL
+       global DDR_ADDRCTRL_WD0_IOCTRL
+       global DDR_ADDRCTRL_WD1_IOCTRL
+       global DDR_CKE_CTRL
+       global DDR_DATA0_IOCTRL
+       global DDR_DATA1_IOCTRL
+       global DDR_DATA2_IOCTRL
+       global DDR_DATA3_IOCTRL
+       global DDR_IO_CTRL
+
+       mww $DDR_ADDRCTRL_IOCTRL        0x84
+       mww $DDR_ADDRCTRL_WD0_IOCTRL    0x00
+       mww $DDR_ADDRCTRL_WD1_IOCTRL    0x00
+       mww $DDR_DATA0_IOCTRL           0x84
+       mww $DDR_DATA1_IOCTRL           0x84
+       mww $DDR_DATA2_IOCTRL           0x84
+       mww $DDR_DATA3_IOCTRL           0x84
+
+       mww $DDR_IO_CTRL                0x00
+       mww $DDR_CKE_CTRL               0x03
+}
+
+proc config_ddr_phy { } {
+       global EMIF_DDR_PHY_CTRL_1
+       global EMIF_DDR_PHY_CTRL_1_SHDW
+
+       global EXT_PHY_CTRL_1
+       global EXT_PHY_CTRL_1_SHDW
+       global EXT_PHY_CTRL_2
+       global EXT_PHY_CTRL_2_SHDW
+       global EXT_PHY_CTRL_3
+       global EXT_PHY_CTRL_3_SHDW
+       global EXT_PHY_CTRL_4
+       global EXT_PHY_CTRL_4_SHDW
+       global EXT_PHY_CTRL_5
+       global EXT_PHY_CTRL_5_SHDW
+       global EXT_PHY_CTRL_6
+       global EXT_PHY_CTRL_6_SHDW
+       global EXT_PHY_CTRL_7
+       global EXT_PHY_CTRL_7_SHDW
+       global EXT_PHY_CTRL_8
+       global EXT_PHY_CTRL_8_SHDW
+       global EXT_PHY_CTRL_9
+       global EXT_PHY_CTRL_9_SHDW
+       global EXT_PHY_CTRL_10
+       global EXT_PHY_CTRL_10_SHDW
+       global EXT_PHY_CTRL_11
+       global EXT_PHY_CTRL_11_SHDW
+       global EXT_PHY_CTRL_12
+       global EXT_PHY_CTRL_12_SHDW
+       global EXT_PHY_CTRL_13
+       global EXT_PHY_CTRL_13_SHDW
+       global EXT_PHY_CTRL_14
+       global EXT_PHY_CTRL_14_SHDW
+       global EXT_PHY_CTRL_15
+       global EXT_PHY_CTRL_15_SHDW
+       global EXT_PHY_CTRL_16
+       global EXT_PHY_CTRL_16_SHDW
+       global EXT_PHY_CTRL_17
+       global EXT_PHY_CTRL_17_SHDW
+       global EXT_PHY_CTRL_18
+       global EXT_PHY_CTRL_18_SHDW
+       global EXT_PHY_CTRL_19
+       global EXT_PHY_CTRL_19_SHDW
+       global EXT_PHY_CTRL_20
+       global EXT_PHY_CTRL_20_SHDW
+       global EXT_PHY_CTRL_21
+       global EXT_PHY_CTRL_21_SHDW
+       global EXT_PHY_CTRL_22
+       global EXT_PHY_CTRL_22_SHDW
+       global EXT_PHY_CTRL_23
+       global EXT_PHY_CTRL_23_SHDW
+       global EXT_PHY_CTRL_24
+       global EXT_PHY_CTRL_24_SHDW
+       global EXT_PHY_CTRL_25
+       global EXT_PHY_CTRL_25_SHDW
+       global EXT_PHY_CTRL_26
+       global EXT_PHY_CTRL_26_SHDW
+       global EXT_PHY_CTRL_27
+       global EXT_PHY_CTRL_27_SHDW
+       global EXT_PHY_CTRL_28
+       global EXT_PHY_CTRL_28_SHDW
+       global EXT_PHY_CTRL_29
+       global EXT_PHY_CTRL_29_SHDW
+       global EXT_PHY_CTRL_30
+       global EXT_PHY_CTRL_30_SHDW
+       global EXT_PHY_CTRL_31
+       global EXT_PHY_CTRL_31_SHDW
+       global EXT_PHY_CTRL_32
+       global EXT_PHY_CTRL_32_SHDW
+       global EXT_PHY_CTRL_33
+       global EXT_PHY_CTRL_33_SHDW
+       global EXT_PHY_CTRL_34
+       global EXT_PHY_CTRL_34_SHDW
+       global EXT_PHY_CTRL_35
+       global EXT_PHY_CTRL_35_SHDW
+       global EXT_PHY_CTRL_36
+       global EXT_PHY_CTRL_36_SHDW
+
+       mww $EMIF_DDR_PHY_CTRL_1        0x8009
+       mww $EMIF_DDR_PHY_CTRL_1_SHDW   0x8009
+
+       set slave_ratio         0x80
+       set gatelvl_init_ratio  0x20
+       set wr_dqs_slave_delay  0x60
+       set rd_dqs_slave_delay  0x60
+       set dq_offset           0x40
+       set gatelvl_init_mode   0x01
+       set wr_data_slave_delay 0x80
+       set gatelvl_num_dq0 0x0f
+       set wrlvl_num_dq0 0x0f
+
+       mww $EXT_PHY_CTRL_1        [ expr ($slave_ratio << 20) | ($slave_ratio << 10) | $slave_ratio ]
+       mww $EXT_PHY_CTRL_1_SHDW   [ expr ($slave_ratio << 20) | ($slave_ratio << 10) | $slave_ratio ]
+       mww $EXT_PHY_CTRL_26       [ expr ($gatelvl_init_ratio << 16) | $gatelvl_init_ratio ]
+       mww $EXT_PHY_CTRL_26_SHDW  [ expr ($gatelvl_init_ratio << 16) | $gatelvl_init_ratio ]
+       mww $EXT_PHY_CTRL_27       [ expr ($gatelvl_init_ratio << 16) | $gatelvl_init_ratio ]
+       mww $EXT_PHY_CTRL_27_SHDW  [ expr ($gatelvl_init_ratio << 16) | $gatelvl_init_ratio ]
+       mww $EXT_PHY_CTRL_28       [ expr ($gatelvl_init_ratio << 16) | $gatelvl_init_ratio ]
+       mww $EXT_PHY_CTRL_28_SHDW  [ expr ($gatelvl_init_ratio << 16) | $gatelvl_init_ratio ]
+       mww $EXT_PHY_CTRL_29       [ expr ($gatelvl_init_ratio << 16) | $gatelvl_init_ratio ]
+       mww $EXT_PHY_CTRL_29_SHDW  [ expr ($gatelvl_init_ratio << 16) | $gatelvl_init_ratio ]
+       mww $EXT_PHY_CTRL_30       [ expr ($gatelvl_init_ratio << 16) | $gatelvl_init_ratio ]
+       mww $EXT_PHY_CTRL_30_SHDW  [ expr ($gatelvl_init_ratio << 16) | $gatelvl_init_ratio ]
+       mww $EXT_PHY_CTRL_31       0x00
+       mww $EXT_PHY_CTRL_31_SHDW  0x00
+       mww $EXT_PHY_CTRL_32       0x00
+       mww $EXT_PHY_CTRL_32_SHDW  0x00
+       mww $EXT_PHY_CTRL_33       0x00
+       mww $EXT_PHY_CTRL_33_SHDW  0x00
+       mww $EXT_PHY_CTRL_34       0x00
+       mww $EXT_PHY_CTRL_34_SHDW  0x00
+       mww $EXT_PHY_CTRL_35       0x00
+       mww $EXT_PHY_CTRL_35_SHDW  0x00
+       mww $EXT_PHY_CTRL_22       0x00
+       mww $EXT_PHY_CTRL_22_SHDW  0x00
+       mww $EXT_PHY_CTRL_23       [ expr ($wr_dqs_slave_delay  <<  16) | $rd_dqs_slave_delay ]
+       mww $EXT_PHY_CTRL_23_SHDW  [ expr ($wr_dqs_slave_delay  <<  16) | $rd_dqs_slave_delay ]
+       mww $EXT_PHY_CTRL_24       [ expr ($dq_offset << 24) | ($gatelvl_init_mode << 16) | $wr_data_slave_delay ]
+       mww $EXT_PHY_CTRL_24_SHDW  [ expr ($dq_offset << 24) | ($gatelvl_init_mode << 16) | $wr_data_slave_delay << 0 ]
+       mww $EXT_PHY_CTRL_25       [ expr ($dq_offset << 21) | ($dq_offset << 14) | ($dq_offset << 7) | $dq_offset ]
+       mww $EXT_PHY_CTRL_25_SHDW  [ expr ($dq_offset << 21) | ($dq_offset << 14) | ($dq_offset << 7) | $dq_offset ]
+       mww $EXT_PHY_CTRL_36       [ expr ($wrlvl_num_dq0 << 4) | $gatelvl_num_dq0 ]
+       mww $EXT_PHY_CTRL_36_SHDW  [ expr ($wrlvl_num_dq0 << 4) | $gatelvl_num_dq0 ]
+}
+
+proc config_ddr_timing { } {
+       global EMIF_SDRAM_TIM_1
+       global EMIF_SDRAM_TIM_2
+       global EMIF_SDRAM_TIM_3
+       global EMIF_SDRAM_TIM_1_SHDW
+       global EMIF_SDRAM_TIM_2_SHDW
+       global EMIF_SDRAM_TIM_3_SHDW
+       global EMIF_ZQ_CONFIG
+
+       mww $EMIF_SDRAM_TIM_1           0xeaaad4db
+       mww $EMIF_SDRAM_TIM_1_SHDW      0xeaaad4db
+
+       mww $EMIF_SDRAM_TIM_2           0x266b7fda
+       mww $EMIF_SDRAM_TIM_2_SHDW      0x266b7fda
+
+       mww $EMIF_SDRAM_TIM_3           0x107f8678
+       mww $EMIF_SDRAM_TIM_3_SHDW      0x107f8678
+
+       mww $EMIF_ZQ_CONFIG             0x50074be4
+}
+
+proc config_ddr_pm { } {
+       global EMIF_PWR_MGMT_CTRL
+       global EMIF_PWR_MGMT_CTRL_SHDW
+       global EMIF_DLL_CALIB_CTRL
+       global EMIF_DLL_CALIB_CTRL_SHDW
+       global EMIF_TEMP_ALERT_CONFIG
+
+       mww $EMIF_PWR_MGMT_CTRL         0x00
+       mww $EMIF_PWR_MGMT_CTRL_SHDW    0x00
+       mww $EMIF_DLL_CALIB_CTRL        0x00050000
+       mww $EMIF_DLL_CALIB_CTRL_SHDW   0x00050000
+       mww $EMIF_TEMP_ALERT_CONFIG     0x00
+}
+
+proc config_ddr_priority { } {
+       global EMIF_PRI_COS_MAP
+       global EMIF_CONNID_COS_1_MAP
+       global EMIF_CONNID_COS_2_MAP
+       global EMIF_RD_WR_EXEC_THRSH
+       global COS_CONFIG
+
+       mww $EMIF_PRI_COS_MAP       0x00
+       mww $EMIF_CONNID_COS_1_MAP  0x00
+       mww $EMIF_CONNID_COS_2_MAP  0x0
+       mww $EMIF_RD_WR_EXEC_THRSH  0x0405
+       mww $COS_CONFIG             0x00ffffff
+}
+
+proc config_ddr3 { SDRAM_CONFIG } {
+       global CM_DLL_CTRL
+       global EMIF_IODFT_TLGC
+       global EMIF_RDWR_LVL_CTRL
+       global EMIF_RDWR_LVL_RMP_CTRL
+       global EMIF_SDRAM_CONFIG
+       global EMIF_SDRAM_CONFIG_EXT
+       global EMIF_SDRAM_REF_CTRL
+       global EMIF_SDRAM_REF_CTRL_SHDW
+       global EMIF_STATUS
+       global EXT_PHY_CTRL_36
+       global EXT_PHY_CTRL_36_SHDW
+
+       emif_prcm_clk_enable
+       vtp_enable
+
+       set dll [ expr [ mrw $CM_DLL_CTRL ] & ~0x01 ]
+       mww $CM_DLL_CTRL $dll
+       while { !([ mrw $CM_DLL_CTRL ] & 0x04) } { }
+
+       config_ddr_ioctrl
+
+       mww $EMIF_SDRAM_CONFIG_EXT      0xc163
+       mww $EMIF_IODFT_TLGC            0x2011
+       mww $EMIF_IODFT_TLGC            0x2411
+       mww $EMIF_IODFT_TLGC            0x2011
+       mww $EMIF_SDRAM_REF_CTRL        0x80003000
+
+       config_ddr_phy
+
+       mww $EMIF_IODFT_TLGC            0x2011
+       mww $EMIF_IODFT_TLGC            0x2411
+       mww $EMIF_IODFT_TLGC            0x2011
+
+       config_ddr_timing
+       config_ddr_pm
+       config_ddr_priority
+
+       mww $EMIF_SDRAM_REF_CTRL        0x3000
+       mww $EMIF_SDRAM_CONFIG          $SDRAM_CONFIG
+
+       mww $EMIF_SDRAM_REF_CTRL        0x0c30
+       mww $EMIF_SDRAM_REF_CTRL_SHDW   0x0c30
+
+       sleep 10
+
+       set tmp [ expr [ mrw $EXT_PHY_CTRL_36 ] | 0x0100 ]
+       mww $EXT_PHY_CTRL_36            $tmp
+       mww $EXT_PHY_CTRL_36_SHDW       $tmp
+
+       mww $EMIF_RDWR_LVL_RMP_CTRL     0x80000000
+       mww $EMIF_RDWR_LVL_CTRL         0x80000000
+
+       while { [ mrw $EMIF_RDWR_LVL_CTRL ] & 0x80000000 } { }
+
+       if { [ mrw $EMIF_STATUS ]  & 0x70 } {
+               error "DDR3 Hardware Leveling incomplete!!!"
+       }
+}
+
+proc init_platform { SDRAM_CONFIG } {
+       config_opp100
+       config_ddr3 $SDRAM_CONFIG
+
+       # now that PLLs are configured, we can run JTAG at full speed
+       adapter_khz 16000
+}
+
 $_TARGETNAME configure -event reset-start { adapter_khz 1000 }
+$_TARGETNAME configure -event reset-init { init_platform 0x61a013b2 }
 $_TARGETNAME configure -event reset-end { disable_watchdog }