diff options
Diffstat (limited to 'arch/arm/cpu/armv7/omap3/lowlevel_init.S')
-rw-r--r-- | arch/arm/cpu/armv7/omap3/lowlevel_init.S | 476 |
1 files changed, 0 insertions, 476 deletions
diff --git a/arch/arm/cpu/armv7/omap3/lowlevel_init.S b/arch/arm/cpu/armv7/omap3/lowlevel_init.S deleted file mode 100644 index 1e58772..0000000 --- a/arch/arm/cpu/armv7/omap3/lowlevel_init.S +++ /dev/null @@ -1,476 +0,0 @@ -/* - * Board specific setup info - * - * (C) Copyright 2008 - * Texas Instruments, <www.ti.com> - * - * Initial Code by: - * Richard Woodruff <r-woodruff2@ti.com> - * Syed Mohammed Khasim <khasim@ti.com> - * - * SPDX-License-Identifier: GPL-2.0+ - */ - -#include <config.h> -#include <asm/arch/mem.h> -#include <asm/arch/clocks_omap3.h> -#include <linux/linkage.h> - -/* - * Funtion for making PPA HAL API calls in secure devices - * Input: - * R0 - Service ID - * R1 - paramer list - */ -ENTRY(do_omap3_emu_romcode_call) - PUSH {r4-r12, lr} @ Save all registers from ROM code! - MOV r12, r0 @ Copy the Secure Service ID in R12 - MOV r3, r1 @ Copy the pointer to va_list in R3 - MOV r1, #0 @ Process ID - 0 - MOV r2, #OMAP3_EMU_HAL_START_HAL_CRITICAL @ Copy the pointer - @ to va_list in R3 - MOV r6, #0xFF @ Indicate new Task call - mcr p15, 0, r0, c7, c10, 4 @ DSB - mcr p15, 0, r0, c7, c10, 5 @ DMB - .word 0xe1600071 @ SMC #1 to call PPA service - hand assembled - @ because we use -march=armv5 - POP {r4-r12, pc} -ENDPROC(do_omap3_emu_romcode_call) - -#if !defined(CONFIG_SYS_NAND_BOOT) && !defined(CONFIG_SYS_NAND_BOOT) -/************************************************************************** - * cpy_clk_code: relocates clock code into SRAM where its safer to execute - * R1 = SRAM destination address. - *************************************************************************/ -ENTRY(cpy_clk_code) - /* Copy DPLL code into SRAM */ - adr r0, go_to_speed /* copy from start of go_to_speed... */ - adr r2, lowlevel_init /* ... up to start of low_level_init */ -next2: - ldmia r0!, {r3 - r10} /* copy from source address [r0] */ - stmia r1!, {r3 - r10} /* copy to target address [r1] */ - cmp r0, r2 /* until source end address [r2] */ - blo next2 - mov pc, lr /* back to caller */ -ENDPROC(cpy_clk_code) - -/* *************************************************************************** - * go_to_speed: -Moves to bypass, -Commits clock dividers, -puts dpll at speed - * -executed from SRAM. - * R0 = CM_CLKEN_PLL-bypass value - * R1 = CM_CLKSEL1_PLL-m, n, and divider values - * R2 = CM_CLKSEL_CORE-divider values - * R3 = CM_IDLEST_CKGEN - addr dpll lock wait - * - * Note: If core unlocks/relocks and SDRAM is running fast already it gets - * confused. A reset of the controller gets it back. Taking away its - * L3 when its not in self refresh seems bad for it. Normally, this - * code runs from flash before SDR is init so that should be ok. - ****************************************************************************/ -ENTRY(go_to_speed) - stmfd sp!, {r4 - r6} - - /* move into fast relock bypass */ - ldr r4, pll_ctl_add - str r0, [r4] -wait1: - ldr r5, [r3] /* get status */ - and r5, r5, #0x1 /* isolate core status */ - cmp r5, #0x1 /* still locked? */ - beq wait1 /* if lock, loop */ - - /* set new dpll dividers _after_ in bypass */ - ldr r5, pll_div_add1 - str r1, [r5] /* set m, n, m2 */ - ldr r5, pll_div_add2 - str r2, [r5] /* set l3/l4/.. dividers*/ - ldr r5, pll_div_add3 /* wkup */ - ldr r2, pll_div_val3 /* rsm val */ - str r2, [r5] - ldr r5, pll_div_add4 /* gfx */ - ldr r2, pll_div_val4 - str r2, [r5] - ldr r5, pll_div_add5 /* emu */ - ldr r2, pll_div_val5 - str r2, [r5] - - /* now prepare GPMC (flash) for new dpll speed */ - /* flash needs to be stable when we jump back to it */ - ldr r5, flash_cfg3_addr - ldr r2, flash_cfg3_val - str r2, [r5] - ldr r5, flash_cfg4_addr - ldr r2, flash_cfg4_val - str r2, [r5] - ldr r5, flash_cfg5_addr - ldr r2, flash_cfg5_val - str r2, [r5] - ldr r5, flash_cfg1_addr - ldr r2, [r5] - orr r2, r2, #0x3 /* up gpmc divider */ - str r2, [r5] - - /* lock DPLL3 and wait a bit */ - orr r0, r0, #0x7 /* set up for lock mode */ - str r0, [r4] /* lock */ - nop /* ARM slow at this point working at sys_clk */ - nop - nop - nop -wait2: - ldr r5, [r3] /* get status */ - and r5, r5, #0x1 /* isolate core status */ - cmp r5, #0x1 /* still locked? */ - bne wait2 /* if lock, loop */ - nop - nop - nop - nop - ldmfd sp!, {r4 - r6} - mov pc, lr /* back to caller, locked */ -ENDPROC(go_to_speed) - -_go_to_speed: .word go_to_speed - -/* these constants need to be close for PIC code */ -/* The Nor has to be in the Flash Base CS0 for this condition to happen */ -flash_cfg1_addr: - .word (GPMC_CONFIG_CS0_BASE + GPMC_CONFIG1) -flash_cfg3_addr: - .word (GPMC_CONFIG_CS0_BASE + GPMC_CONFIG3) -flash_cfg3_val: - .word STNOR_GPMC_CONFIG3 -flash_cfg4_addr: - .word (GPMC_CONFIG_CS0_BASE + GPMC_CONFIG4) -flash_cfg4_val: - .word STNOR_GPMC_CONFIG4 -flash_cfg5_val: - .word STNOR_GPMC_CONFIG5 -flash_cfg5_addr: - .word (GPMC_CONFIG_CS0_BASE + GPMC_CONFIG5) -pll_ctl_add: - .word CM_CLKEN_PLL -pll_div_add1: - .word CM_CLKSEL1_PLL -pll_div_add2: - .word CM_CLKSEL_CORE -pll_div_add3: - .word CM_CLKSEL_WKUP -pll_div_val3: - .word (WKUP_RSM << 1) -pll_div_add4: - .word CM_CLKSEL_GFX -pll_div_val4: - .word (GFX_DIV << 0) -pll_div_add5: - .word CM_CLKSEL1_EMU -pll_div_val5: - .word CLSEL1_EMU_VAL - -#endif - -ENTRY(lowlevel_init) - ldr sp, SRAM_STACK - str ip, [sp] /* stash ip register */ - mov ip, lr /* save link reg across call */ -#if !defined(CONFIG_SYS_NAND_BOOT) && !defined(CONFIG_SYS_ONENAND_BOOT) -/* - * No need to copy/exec the clock code - DPLL adjust already done - * in NAND/oneNAND Boot. - */ - ldr r1, =SRAM_CLK_CODE - bl cpy_clk_code -#endif /* NAND Boot */ - mov lr, ip /* restore link reg */ - ldr ip, [sp] /* restore save ip */ - /* tail-call s_init to setup pll, mux, memory */ - b s_init - -ENDPROC(lowlevel_init) - - /* the literal pools origin */ - .ltorg - -REG_CONTROL_STATUS: - .word CONTROL_STATUS -SRAM_STACK: - .word LOW_LEVEL_SRAM_STACK - -/* DPLL(1-4) PARAM TABLES */ - -/* - * Each of the tables has M, N, FREQSEL, M2 values defined for nominal - * OPP (1.2V). The fields are defined according to dpll_param struct (clock.c). - * The values are defined for all possible sysclk and for ES1 and ES2. - */ - -mpu_dpll_param: -/* 12MHz */ -/* ES1 */ -.word MPU_M_12_ES1, MPU_N_12_ES1, MPU_FSEL_12_ES1, MPU_M2_12_ES1 -/* ES2 */ -.word MPU_M_12_ES2, MPU_N_12_ES2, MPU_FSEL_12_ES2, MPU_M2_ES2 -/* 3410 */ -.word MPU_M_12, MPU_N_12, MPU_FSEL_12, MPU_M2_12 - -/* 13MHz */ -/* ES1 */ -.word MPU_M_13_ES1, MPU_N_13_ES1, MPU_FSEL_13_ES1, MPU_M2_13_ES1 -/* ES2 */ -.word MPU_M_13_ES2, MPU_N_13_ES2, MPU_FSEL_13_ES2, MPU_M2_13_ES2 -/* 3410 */ -.word MPU_M_13, MPU_N_13, MPU_FSEL_13, MPU_M2_13 - -/* 19.2MHz */ -/* ES1 */ -.word MPU_M_19P2_ES1, MPU_N_19P2_ES1, MPU_FSEL_19P2_ES1, MPU_M2_19P2_ES1 -/* ES2 */ -.word MPU_M_19P2_ES2, MPU_N_19P2_ES2, MPU_FSEL_19P2_ES2, MPU_M2_19P2_ES2 -/* 3410 */ -.word MPU_M_19P2, MPU_N_19P2, MPU_FSEL_19P2, MPU_M2_19P2 - -/* 26MHz */ -/* ES1 */ -.word MPU_M_26_ES1, MPU_N_26_ES1, MPU_FSEL_26_ES1, MPU_M2_26_ES1 -/* ES2 */ -.word MPU_M_26_ES2, MPU_N_26_ES2, MPU_FSEL_26_ES2, MPU_M2_26_ES2 -/* 3410 */ -.word MPU_M_26, MPU_N_26, MPU_FSEL_26, MPU_M2_26 - -/* 38.4MHz */ -/* ES1 */ -.word MPU_M_38P4_ES1, MPU_N_38P4_ES1, MPU_FSEL_38P4_ES1, MPU_M2_38P4_ES1 -/* ES2 */ -.word MPU_M_38P4_ES2, MPU_N_38P4_ES2, MPU_FSEL_38P4_ES2, MPU_M2_38P4_ES2 -/* 3410 */ -.word MPU_M_38P4, MPU_N_38P4, MPU_FSEL_38P4, MPU_M2_38P4 - - -.globl get_mpu_dpll_param -get_mpu_dpll_param: - adr r0, mpu_dpll_param - mov pc, lr - -iva_dpll_param: -/* 12MHz */ -/* ES1 */ -.word IVA_M_12_ES1, IVA_N_12_ES1, IVA_FSEL_12_ES1, IVA_M2_12_ES1 -/* ES2 */ -.word IVA_M_12_ES2, IVA_N_12_ES2, IVA_FSEL_12_ES2, IVA_M2_12_ES2 -/* 3410 */ -.word IVA_M_12, IVA_N_12, IVA_FSEL_12, IVA_M2_12 - -/* 13MHz */ -/* ES1 */ -.word IVA_M_13_ES1, IVA_N_13_ES1, IVA_FSEL_13_ES1, IVA_M2_13_ES1 -/* ES2 */ -.word IVA_M_13_ES2, IVA_N_13_ES2, IVA_FSEL_13_ES2, IVA_M2_13_ES2 -/* 3410 */ -.word IVA_M_13, IVA_N_13, IVA_FSEL_13, IVA_M2_13 - -/* 19.2MHz */ -/* ES1 */ -.word IVA_M_19P2_ES1, IVA_N_19P2_ES1, IVA_FSEL_19P2_ES1, IVA_M2_19P2_ES1 -/* ES2 */ -.word IVA_M_19P2_ES2, IVA_N_19P2_ES2, IVA_FSEL_19P2_ES2, IVA_M2_19P2_ES2 -/* 3410 */ -.word IVA_M_19P2, IVA_N_19P2, IVA_FSEL_19P2, IVA_M2_19P2 - -/* 26MHz */ -/* ES1 */ -.word IVA_M_26_ES1, IVA_N_26_ES1, IVA_FSEL_26_ES1, IVA_M2_26_ES1 -/* ES2 */ -.word IVA_M_26_ES2, IVA_N_26_ES2, IVA_FSEL_26_ES2, IVA_M2_26_ES2 -/* 3410 */ -.word IVA_M_26, IVA_N_26, IVA_FSEL_26, IVA_M2_26 - -/* 38.4MHz */ -/* ES1 */ -.word IVA_M_38P4_ES1, IVA_N_38P4_ES1, IVA_FSEL_38P4_ES1, IVA_M2_38P4_ES1 -/* ES2 */ -.word IVA_M_38P4_ES2, IVA_N_38P4_ES2, IVA_FSEL_38P4_ES2, IVA_M2_38P4_ES2 -/* 3410 */ -.word IVA_M_38P4, IVA_N_38P4, IVA_FSEL_38P4, IVA_M2_38P4 - - -.globl get_iva_dpll_param -get_iva_dpll_param: - adr r0, iva_dpll_param - mov pc, lr - -/* Core DPLL targets for L3 at 166 & L133 */ -core_dpll_param: -/* 12MHz */ -/* ES1 */ -.word CORE_M_12_ES1, CORE_N_12_ES1, CORE_FSL_12_ES1, CORE_M2_12_ES1 -/* ES2 */ -.word CORE_M_12, CORE_N_12, CORE_FSEL_12, CORE_M2_12 -/* 3410 */ -.word CORE_M_12, CORE_N_12, CORE_FSEL_12, CORE_M2_12 - -/* 13MHz */ -/* ES1 */ -.word CORE_M_13_ES1, CORE_N_13_ES1, CORE_FSL_13_ES1, CORE_M2_13_ES1 -/* ES2 */ -.word CORE_M_13, CORE_N_13, CORE_FSEL_13, CORE_M2_13 -/* 3410 */ -.word CORE_M_13, CORE_N_13, CORE_FSEL_13, CORE_M2_13 - -/* 19.2MHz */ -/* ES1 */ -.word CORE_M_19P2_ES1, CORE_N_19P2_ES1, CORE_FSL_19P2_ES1, CORE_M2_19P2_ES1 -/* ES2 */ -.word CORE_M_19P2, CORE_N_19P2, CORE_FSEL_19P2, CORE_M2_19P2 -/* 3410 */ -.word CORE_M_19P2, CORE_N_19P2, CORE_FSEL_19P2, CORE_M2_19P2 - -/* 26MHz */ -/* ES1 */ -.word CORE_M_26_ES1, CORE_N_26_ES1, CORE_FSL_26_ES1, CORE_M2_26_ES1 -/* ES2 */ -.word CORE_M_26, CORE_N_26, CORE_FSEL_26, CORE_M2_26 -/* 3410 */ -.word CORE_M_26, CORE_N_26, CORE_FSEL_26, CORE_M2_26 - -/* 38.4MHz */ -/* ES1 */ -.word CORE_M_38P4_ES1, CORE_N_38P4_ES1, CORE_FSL_38P4_ES1, CORE_M2_38P4_ES1 -/* ES2 */ -.word CORE_M_38P4, CORE_N_38P4, CORE_FSEL_38P4, CORE_M2_38P4 -/* 3410 */ -.word CORE_M_38P4, CORE_N_38P4, CORE_FSEL_38P4, CORE_M2_38P4 - -.globl get_core_dpll_param -get_core_dpll_param: - adr r0, core_dpll_param - mov pc, lr - -/* PER DPLL values are same for both ES1 and ES2 */ -per_dpll_param: -/* 12MHz */ -.word PER_M_12, PER_N_12, PER_FSEL_12, PER_M2_12 - -/* 13MHz */ -.word PER_M_13, PER_N_13, PER_FSEL_13, PER_M2_13 - -/* 19.2MHz */ -.word PER_M_19P2, PER_N_19P2, PER_FSEL_19P2, PER_M2_19P2 - -/* 26MHz */ -.word PER_M_26, PER_N_26, PER_FSEL_26, PER_M2_26 - -/* 38.4MHz */ -.word PER_M_38P4, PER_N_38P4, PER_FSEL_38P4, PER_M2_38P4 - -.globl get_per_dpll_param -get_per_dpll_param: - adr r0, per_dpll_param - mov pc, lr - -/* PER2 DPLL values */ -per2_dpll_param: -/* 12MHz */ -.word PER2_M_12, PER2_N_12, PER2_FSEL_12, PER2_M2_12 - -/* 13MHz */ -.word PER2_M_13, PER2_N_13, PER2_FSEL_13, PER2_M2_13 - -/* 19.2MHz */ -.word PER2_M_19P2, PER2_N_19P2, PER2_FSEL_19P2, PER2_M2_19P2 - -/* 26MHz */ -.word PER2_M_26, PER2_N_26, PER2_FSEL_26, PER2_M2_26 - -/* 38.4MHz */ -.word PER2_M_38P4, PER2_N_38P4, PER2_FSEL_38P4, PER2_M2_38P4 - -.globl get_per2_dpll_param -get_per2_dpll_param: - adr r0, per2_dpll_param - mov pc, lr - -/* - * Tables for 36XX/37XX devices - * - */ -mpu_36x_dpll_param: -/* 12MHz */ -.word 50, 0, 0, 1 -/* 13MHz */ -.word 600, 12, 0, 1 -/* 19.2MHz */ -.word 125, 3, 0, 1 -/* 26MHz */ -.word 300, 12, 0, 1 -/* 38.4MHz */ -.word 125, 7, 0, 1 - -iva_36x_dpll_param: -/* 12MHz */ -.word 130, 2, 0, 1 -/* 13MHz */ -.word 20, 0, 0, 1 -/* 19.2MHz */ -.word 325, 11, 0, 1 -/* 26MHz */ -.word 10, 0, 0, 1 -/* 38.4MHz */ -.word 325, 23, 0, 1 - -core_36x_dpll_param: -/* 12MHz */ -.word 100, 2, 0, 1 -/* 13MHz */ -.word 400, 12, 0, 1 -/* 19.2MHz */ -.word 375, 17, 0, 1 -/* 26MHz */ -.word 200, 12, 0, 1 -/* 38.4MHz */ -.word 375, 35, 0, 1 - -per_36x_dpll_param: -/* SYSCLK M N M2 M3 M4 M5 M6 m2DIV */ -.word 12000, 360, 4, 9, 16, 5, 4, 3, 1 -.word 13000, 864, 12, 9, 16, 9, 4, 3, 1 -.word 19200, 360, 7, 9, 16, 5, 4, 3, 1 -.word 26000, 432, 12, 9, 16, 9, 4, 3, 1 -.word 38400, 360, 15, 9, 16, 5, 4, 3, 1 - -per2_36x_dpll_param: -/* 12MHz */ -.word PER2_36XX_M_12, PER2_36XX_N_12, 0, PER2_36XX_M2_12 -/* 13MHz */ -.word PER2_36XX_M_13, PER2_36XX_N_13, 0, PER2_36XX_M2_13 -/* 19.2MHz */ -.word PER2_36XX_M_19P2, PER2_36XX_N_19P2, 0, PER2_36XX_M2_19P2 -/* 26MHz */ -.word PER2_36XX_M_26, PER2_36XX_N_26, 0, PER2_36XX_M2_26 -/* 38.4MHz */ -.word PER2_36XX_M_38P4, PER2_36XX_N_38P4, 0, PER2_36XX_M2_38P4 - - -ENTRY(get_36x_mpu_dpll_param) - adr r0, mpu_36x_dpll_param - mov pc, lr -ENDPROC(get_36x_mpu_dpll_param) - -ENTRY(get_36x_iva_dpll_param) - adr r0, iva_36x_dpll_param - mov pc, lr -ENDPROC(get_36x_iva_dpll_param) - -ENTRY(get_36x_core_dpll_param) - adr r0, core_36x_dpll_param - mov pc, lr -ENDPROC(get_36x_core_dpll_param) - -ENTRY(get_36x_per_dpll_param) - adr r0, per_36x_dpll_param - mov pc, lr -ENDPROC(get_36x_per_dpll_param) - -ENTRY(get_36x_per2_dpll_param) - adr r0, per2_36x_dpll_param - mov pc, lr -ENDPROC(get_36x_per2_dpll_param) |