diff options
| -rw-r--r-- | arch/arm/mach-davinci/Makefile | 4 | ||||
| -rw-r--r-- | arch/arm/mach-davinci/lowlevel_init.S | 692 |
2 files changed, 0 insertions, 696 deletions
diff --git a/arch/arm/mach-davinci/Makefile b/arch/arm/mach-davinci/Makefile index 6887fe05dd..ed88274072 100644 --- a/arch/arm/mach-davinci/Makefile +++ b/arch/arm/mach-davinci/Makefile @@ -18,7 +18,3 @@ obj-$(CONFIG_SPL_FRAMEWORK) += spl.o obj-$(CONFIG_SOC_DM365) += dm365_lowlevel.o obj-$(CONFIG_SOC_DA8XX) += da850_lowlevel.o endif - -ifndef CONFIG_SKIP_LOWLEVEL_INIT -obj-y += lowlevel_init.o -endif diff --git a/arch/arm/mach-davinci/lowlevel_init.S b/arch/arm/mach-davinci/lowlevel_init.S deleted file mode 100644 index b82dafad2b..0000000000 --- a/arch/arm/mach-davinci/lowlevel_init.S +++ /dev/null @@ -1,692 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0+ */ -/* - * Low-level board setup code for TI DaVinci SoC based boards. - * - * Copyright (C) 2007 Sergey Kubushyn <ksi@koi8.net> - * - * Partially based on TI sources, original copyrights follow: - */ - -/* - * Board specific setup info - * - * (C) Copyright 2003 - * Texas Instruments, <www.ti.com> - * Kshitij Gupta <Kshitij@ti.com> - * - * Modified for OMAP 1610 H2 board by Nishant Kamat, Jan 2004 - * - * Modified for OMAP 5912 OSK board by Rishi Bhattacharya, Apr 2004 - * - * Modified for DV-EVM board by Rishi Bhattacharya, Apr 2005 - * - * Modified for DV-EVM board by Swaminathan S, Nov 2005 - */ - -#include <config.h> - -#define MDSTAT_STATE 0x3f - -.globl lowlevel_init -lowlevel_init: -#ifdef CONFIG_SOC_DM644X - - /*-------------------------------------------------------* - * Mask all IRQs by setting all bits in the EINT default * - *-------------------------------------------------------*/ - mov r1, $0 - ldr r0, =EINT_ENABLE0 - str r1, [r0] - ldr r0, =EINT_ENABLE1 - str r1, [r0] - - /*------------------------------------------------------* - * Put the GEM in reset * - *------------------------------------------------------*/ - - /* Put the GEM in reset */ - ldr r8, PSC_GEM_FLAG_CLEAR - ldr r6, MDCTL_GEM - ldr r7, [r6] - and r7, r7, r8 - str r7, [r6] - - /* Enable the Power Domain Transition Command */ - ldr r6, PTCMD - ldr r7, [r6] - orr r7, r7, $0x02 - str r7, [r6] - - /* Check for Transition Complete(PTSTAT) */ -checkStatClkStopGem: - ldr r6, PTSTAT - ldr r7, [r6] - ands r7, r7, $0x02 - bne checkStatClkStopGem - - /* Check for GEM Reset Completion */ -checkGemStatClkStop: - ldr r6, MDSTAT_GEM - ldr r7, [r6] - ands r7, r7, $0x100 - bne checkGemStatClkStop - - /* Do this for enabling a WDT initiated reset this is a workaround - for a chip bug. Not required under normal situations */ - ldr r6, P1394 - mov r10, $0 - str r10, [r6] - - /*------------------------------------------------------* - * Enable L1 & L2 Memories in Fast mode * - *------------------------------------------------------*/ - ldr r6, DFT_ENABLE - mov r10, $0x01 - str r10, [r6] - - ldr r6, MMARG_BRF0 - ldr r10, MMARG_BRF0_VAL - str r10, [r6] - - ldr r6, DFT_ENABLE - mov r10, $0 - str r10, [r6] - - /*------------------------------------------------------* - * DDR2 PLL Initialization * - *------------------------------------------------------*/ - - /* Select the Clock Mode Depending on the Value written in the Boot Table by the run script */ - mov r10, $0 - ldr r6, PLL2_CTL - ldr r7, PLL_CLKSRC_MASK - ldr r8, [r6] - and r8, r8, r7 - mov r9, r10, lsl $8 - orr r8, r8, r9 - str r8, [r6] - - /* Select the PLLEN source */ - ldr r7, PLL_ENSRC_MASK - and r8, r8, r7 - str r8, [r6] - - /* Bypass the PLL */ - ldr r7, PLL_BYPASS_MASK - and r8, r8, r7 - str r8, [r6] - - /* Wait for few cycles to allow PLLEN Mux switch properly to bypass Clock */ - mov r10, $0x20 -WaitPPL2Loop: - subs r10, r10, $1 - bne WaitPPL2Loop - - /* Reset the PLL */ - ldr r7, PLL_RESET_MASK - and r8, r8, r7 - str r8, [r6] - - /* Power up the PLL */ - ldr r7, PLL_PWRUP_MASK - and r8, r8, r7 - str r8, [r6] - - /* Enable the PLL from Disable Mode */ - ldr r7, PLL_DISABLE_ENABLE_MASK - and r8, r8, r7 - str r8, [r6] - - /* Program the PLL Multiplier */ - ldr r6, PLL2_PLLM - mov r2, $0x17 /* 162 MHz */ - str r2, [r6] - - /* Program the PLL2 Divisor Value */ - ldr r6, PLL2_DIV2 - mov r3, $0x01 - str r3, [r6] - - /* Program the PLL2 Divisor Value */ - ldr r6, PLL2_DIV1 - mov r4, $0x0b /* 54 MHz */ - str r4, [r6] - - /* PLL2 DIV2 MMR */ - ldr r8, PLL2_DIV_MASK - ldr r6, PLL2_DIV2 - ldr r9, [r6] - and r8, r8, r9 - mov r9, $0x01 - mov r9, r9, lsl $15 - orr r8, r8, r9 - str r8, [r6] - - /* Program the GOSET bit to take new divider values */ - ldr r6, PLL2_PLLCMD - ldr r7, [r6] - orr r7, r7, $0x01 - str r7, [r6] - - /* Wait for Done */ - ldr r6, PLL2_PLLSTAT -doneLoop_0: - ldr r7, [r6] - ands r7, r7, $0x01 - bne doneLoop_0 - - /* PLL2 DIV1 MMR */ - ldr r8, PLL2_DIV_MASK - ldr r6, PLL2_DIV1 - ldr r9, [r6] - and r8, r8, r9 - mov r9, $0x01 - mov r9, r9, lsl $15 - orr r8, r8, r9 - str r8, [r6] - - /* Program the GOSET bit to take new divider values */ - ldr r6, PLL2_PLLCMD - ldr r7, [r6] - orr r7, r7, $0x01 - str r7, [r6] - - /* Wait for Done */ - ldr r6, PLL2_PLLSTAT -doneLoop: - ldr r7, [r6] - ands r7, r7, $0x01 - bne doneLoop - - /* Wait for PLL to Reset Properly */ - mov r10, $0x218 -ResetPPL2Loop: - subs r10, r10, $1 - bne ResetPPL2Loop - - /* Bring PLL out of Reset */ - ldr r6, PLL2_CTL - ldr r8, [r6] - orr r8, r8, $0x08 - str r8, [r6] - - /* Wait for PLL to Lock */ - ldr r10, PLL_LOCK_COUNT -PLL2Lock: - subs r10, r10, $1 - bne PLL2Lock - - /* Enable the PLL */ - ldr r6, PLL2_CTL - ldr r8, [r6] - orr r8, r8, $0x01 - str r8, [r6] - - /*------------------------------------------------------* - * Issue Soft Reset to DDR Module * - *------------------------------------------------------*/ - - /* Shut down the DDR2 LPSC Module */ - ldr r8, PSC_FLAG_CLEAR - ldr r6, MDCTL_DDR2 - ldr r7, [r6] - and r7, r7, r8 - orr r7, r7, $0x03 - str r7, [r6] - - /* Enable the Power Domain Transition Command */ - ldr r6, PTCMD - ldr r7, [r6] - orr r7, r7, $0x01 - str r7, [r6] - - /* Check for Transition Complete(PTSTAT) */ -checkStatClkStop: - ldr r6, PTSTAT - ldr r7, [r6] - ands r7, r7, $0x01 - bne checkStatClkStop - - /* Check for DDR2 Controller Enable Completion */ -checkDDRStatClkStop: - ldr r6, MDSTAT_DDR2 - ldr r7, [r6] - and r7, r7, $MDSTAT_STATE - cmp r7, $0x03 - bne checkDDRStatClkStop - - /*------------------------------------------------------* - * Program DDR2 MMRs for 162MHz Setting * - *------------------------------------------------------*/ - - /* Program PHY Control Register */ - ldr r6, DDRCTL - ldr r7, DDRCTL_VAL - str r7, [r6] - - /* Program SDRAM Bank Config Register */ - ldr r6, SDCFG - ldr r7, SDCFG_VAL - str r7, [r6] - - /* Program SDRAM TIM-0 Config Register */ - ldr r6, SDTIM0 - ldr r7, SDTIM0_VAL_162MHz - str r7, [r6] - - /* Program SDRAM TIM-1 Config Register */ - ldr r6, SDTIM1 - ldr r7, SDTIM1_VAL_162MHz - str r7, [r6] - - /* Program the SDRAM Bank Config Control Register */ - ldr r10, MASK_VAL - ldr r8, SDCFG - ldr r9, SDCFG_VAL - and r9, r9, r10 - str r9, [r8] - - /* Program SDRAM SDREF Config Register */ - ldr r6, SDREF - ldr r7, SDREF_VAL - str r7, [r6] - - /*------------------------------------------------------* - * Issue Soft Reset to DDR Module * - *------------------------------------------------------*/ - - /* Issue a Dummy DDR2 read/write */ - ldr r8, DDR2_START_ADDR - ldr r7, DUMMY_VAL - str r7, [r8] - ldr r7, [r8] - - /* Shut down the DDR2 LPSC Module */ - ldr r8, PSC_FLAG_CLEAR - ldr r6, MDCTL_DDR2 - ldr r7, [r6] - and r7, r7, r8 - orr r7, r7, $0x01 - str r7, [r6] - - /* Enable the Power Domain Transition Command */ - ldr r6, PTCMD - ldr r7, [r6] - orr r7, r7, $0x01 - str r7, [r6] - - /* Check for Transition Complete(PTSTAT) */ -checkStatClkStop2: - ldr r6, PTSTAT - ldr r7, [r6] - ands r7, r7, $0x01 - bne checkStatClkStop2 - - /* Check for DDR2 Controller Enable Completion */ -checkDDRStatClkStop2: - ldr r6, MDSTAT_DDR2 - ldr r7, [r6] - and r7, r7, $MDSTAT_STATE - cmp r7, $0x01 - bne checkDDRStatClkStop2 - - /*------------------------------------------------------* - * Turn DDR2 Controller Clocks On * - *------------------------------------------------------*/ - - /* Enable the DDR2 LPSC Module */ - ldr r6, MDCTL_DDR2 - ldr r7, [r6] - orr r7, r7, $0x03 - str r7, [r6] - - /* Enable the Power Domain Transition Command */ - ldr r6, PTCMD - ldr r7, [r6] - orr r7, r7, $0x01 - str r7, [r6] - - /* Check for Transition Complete(PTSTAT) */ -checkStatClkEn2: - ldr r6, PTSTAT - ldr r7, [r6] - ands r7, r7, $0x01 - bne checkStatClkEn2 - - /* Check for DDR2 Controller Enable Completion */ -checkDDRStatClkEn2: - ldr r6, MDSTAT_DDR2 - ldr r7, [r6] - and r7, r7, $MDSTAT_STATE - cmp r7, $0x03 - bne checkDDRStatClkEn2 - - /* DDR Writes and Reads */ - ldr r6, CFGTEST - mov r3, $0x01 - str r3, [r6] - - /*------------------------------------------------------* - * System PLL Initialization * - *------------------------------------------------------*/ - - /* Select the Clock Mode Depending on the Value written in the Boot Table by the run script */ - mov r2, $0 - ldr r6, PLL1_CTL - ldr r7, PLL_CLKSRC_MASK - ldr r8, [r6] - and r8, r8, r7 - mov r9, r2, lsl $8 - orr r8, r8, r9 - str r8, [r6] - - /* Select the PLLEN source */ - ldr r7, PLL_ENSRC_MASK - and r8, r8, r7 - str r8, [r6] - - /* Bypass the PLL */ - ldr r7, PLL_BYPASS_MASK - and r8, r8, r7 - str r8, [r6] - - /* Wait for few cycles to allow PLLEN Mux switch properly to bypass Clock */ - mov r10, $0x20 - -WaitLoop: - subs r10, r10, $1 - bne WaitLoop - - /* Reset the PLL */ - ldr r7, PLL_RESET_MASK - and r8, r8, r7 - str r8, [r6] - - /* Disable the PLL */ - orr r8, r8, $0x10 - str r8, [r6] - - /* Power up the PLL */ - ldr r7, PLL_PWRUP_MASK - and r8, r8, r7 - str r8, [r6] - - /* Enable the PLL from Disable Mode */ - ldr r7, PLL_DISABLE_ENABLE_MASK - and r8, r8, r7 - str r8, [r6] - - /* Program the PLL Multiplier */ - ldr r6, PLL1_PLLM - mov r3, $0x15 /* For 594MHz */ - str r3, [r6] - - /* Wait for PLL to Reset Properly */ - mov r10, $0xff - -ResetLoop: - subs r10, r10, $1 - bne ResetLoop - - /* Bring PLL out of Reset */ - ldr r6, PLL1_CTL - orr r8, r8, $0x08 - str r8, [r6] - - /* Wait for PLL to Lock */ - ldr r10, PLL_LOCK_COUNT - -PLL1Lock: - subs r10, r10, $1 - bne PLL1Lock - - /* Enable the PLL */ - orr r8, r8, $0x01 - str r8, [r6] - - nop - nop - nop - nop - - /*------------------------------------------------------* - * AEMIF configuration for NOR Flash (double check) * - *------------------------------------------------------*/ - ldr r0, _PINMUX0 - ldr r1, _DEV_SETTING - str r1, [r0] - - ldr r0, WAITCFG - ldr r1, WAITCFG_VAL - ldr r2, [r0] - orr r2, r2, r1 - str r2, [r0] - - ldr r0, ACFG3 - ldr r1, ACFG3_VAL - ldr r2, [r0] - and r1, r2, r1 - str r1, [r0] - - ldr r0, ACFG4 - ldr r1, ACFG4_VAL - ldr r2, [r0] - and r1, r2, r1 - str r1, [r0] - - ldr r0, ACFG5 - ldr r1, ACFG5_VAL - ldr r2, [r0] - and r1, r2, r1 - str r1, [r0] - - /*--------------------------------------* - * VTP manual Calibration * - *--------------------------------------*/ - ldr r0, VTPIOCR - ldr r1, VTP_MMR0 - str r1, [r0] - - ldr r0, VTPIOCR - ldr r1, VTP_MMR1 - str r1, [r0] - - /* Wait for 33 VTP CLK cycles. VRP operates at 27 MHz */ - ldr r10, VTP_LOCK_COUNT -VTPLock: - subs r10, r10, $1 - bne VTPLock - - ldr r6, DFT_ENABLE - mov r10, $0x01 - str r10, [r6] - - ldr r6, DDRVTPR - ldr r7, [r6] - mov r8, r7, LSL #32-10 - mov r8, r8, LSR #32-10 /* grab low 10 bits */ - ldr r7, VTP_RECAL - orr r8, r7, r8 - ldr r7, VTP_EN - orr r8, r7, r8 - str r8, [r0] - - - /* Wait for 33 VTP CLK cycles. VRP operates at 27 MHz */ - ldr r10, VTP_LOCK_COUNT -VTP1Lock: - subs r10, r10, $1 - bne VTP1Lock - - ldr r1, [r0] - ldr r2, VTP_MASK - and r2, r1, r2 - str r2, [r0] - - ldr r6, DFT_ENABLE - mov r10, $0 - str r10, [r6] - - /* - * Call board-specific lowlevel init. - * That MUST be present and THAT returns - * back to arch calling code with "mov pc, lr." - */ - b dv_board_init - -.ltorg - -_PINMUX0: - .word 0x01c40000 /* Device Configuration Registers */ -_PINMUX1: - .word 0x01c40004 /* Device Configuration Registers */ - -_DEV_SETTING: - .word 0x00000c1f - -WAITCFG: - .word 0x01e00004 -WAITCFG_VAL: - .word 0 -ACFG3: - .word 0x01e00014 -ACFG3_VAL: - .word 0x3ffffffd -ACFG4: - .word 0x01e00018 -ACFG4_VAL: - .word 0x3ffffffd -ACFG5: - .word 0x01e0001c -ACFG5_VAL: - .word 0x3ffffffd - -MDCTL_DDR2: - .word 0x01c41a34 -MDSTAT_DDR2: - .word 0x01c41834 - -PTCMD: - .word 0x01c41120 -PTSTAT: - .word 0x01c41128 - -EINT_ENABLE0: - .word 0x01c48018 -EINT_ENABLE1: - .word 0x01c4801c - -PSC_FLAG_CLEAR: - .word 0xffffffe0 -PSC_GEM_FLAG_CLEAR: - .word 0xfffffeff - -/* DDR2 MMR & CONFIGURATION VALUES, 162 MHZ clock */ -DDRCTL: - .word 0x200000e4 -DDRCTL_VAL: - .word 0x50006405 -SDREF: - .word 0x2000000c -SDREF_VAL: - .word 0x000005c3 -SDCFG: - .word 0x20000008 -SDCFG_VAL: -#ifdef DDR_4BANKS - .word 0x00178622 -#elif defined DDR_8BANKS - .word 0x00178632 -#else -#error "Unknown DDR configuration!!!" -#endif -SDTIM0: - .word 0x20000010 -SDTIM0_VAL_162MHz: - .word 0x28923211 -SDTIM1: - .word 0x20000014 -SDTIM1_VAL_162MHz: - .word 0x0016c722 -VTPIOCR: - .word 0x200000f0 /* VTP IO Control register */ -DDRVTPR: - .word 0x01c42030 /* DDR VPTR MMR */ -VTP_MMR0: - .word 0x201f -VTP_MMR1: - .word 0xa01f -DFT_ENABLE: - .word 0x01c4004c -VTP_LOCK_COUNT: - .word 0x5b0 -VTP_MASK: - .word 0xffffdfff -VTP_RECAL: - .word 0x08000 -VTP_EN: - .word 0x02000 -CFGTEST: - .word 0x80010000 -MASK_VAL: - .word 0x00000fff - -/* GEM Power Up & LPSC Control Register */ -MDCTL_GEM: - .word 0x01c41a9c -MDSTAT_GEM: - .word 0x01c4189c - -/* For WDT reset chip bug */ -P1394: - .word 0x01c41a20 - -PLL_CLKSRC_MASK: - .word 0xfffffeff /* Mask the Clock Mode bit */ -PLL_ENSRC_MASK: - .word 0xffffffdf /* Select the PLLEN source */ -PLL_BYPASS_MASK: - .word 0xfffffffe /* Put the PLL in BYPASS */ -PLL_RESET_MASK: - .word 0xfffffff7 /* Put the PLL in Reset Mode */ -PLL_PWRUP_MASK: - .word 0xfffffffd /* PLL Power up Mask Bit */ -PLL_DISABLE_ENABLE_MASK: - .word 0xffffffef /* Enable the PLL from Disable */ -PLL_LOCK_COUNT: - .word 0x2000 - -/* PLL1-SYSTEM PLL MMRs */ -PLL1_CTL: - .word 0x01c40900 -PLL1_PLLM: - .word 0x01c40910 - -/* PLL2-SYSTEM PLL MMRs */ -PLL2_CTL: - .word 0x01c40d00 -PLL2_PLLM: - .word 0x01c40d10 -PLL2_DIV1: - .word 0x01c40d18 -PLL2_DIV2: - .word 0x01c40d1c -PLL2_PLLCMD: - .word 0x01c40d38 -PLL2_PLLSTAT: - .word 0x01c40d3c -PLL2_DIV_MASK: - .word 0xffff7fff - -MMARG_BRF0: - .word 0x01c42010 /* BRF margin mode 0 (R/W)*/ -MMARG_BRF0_VAL: - .word 0x00444400 - -DDR2_START_ADDR: - .word 0x80000000 -DUMMY_VAL: - .word 0xa55aa55a -#else /* CONFIG_SOC_DM644X */ - mov pc, lr -#endif |