X-Git-Url: https://git.librecmc.org/?a=blobdiff_plain;ds=sidebyside;f=arch%2Farm%2Fcpu%2Farmv7%2Fomap3%2Flowlevel_init.S;h=1e587723cec128b4e393a4cba1cf93deb2f756e6;hb=783983f323730540f861413dfbea6802c88afcf8;hp=73063ec8e66173956190551d87d8015fa0723f1d;hpb=16909f34b76e89871c0da528d6fe2ebf4e32231e;p=oweals%2Fu-boot.git diff --git a/arch/arm/cpu/armv7/omap3/lowlevel_init.S b/arch/arm/cpu/armv7/omap3/lowlevel_init.S index 73063ec8e6..1e587723ce 100644 --- a/arch/arm/cpu/armv7/omap3/lowlevel_init.S +++ b/arch/arm/cpu/armv7/omap3/lowlevel_init.S @@ -8,51 +8,51 @@ * Richard Woodruff * Syed Mohammed Khasim * - * See file CREDITS for list of people who contributed to this - * project. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation; either version 2 of - * the License, or (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, - * MA 02111-1307 USA + * SPDX-License-Identifier: GPL-2.0+ */ #include -#include #include #include +#include -_TEXT_BASE: - .word TEXT_BASE /* sdram load addr from config.mk */ +/* + * 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. *************************************************************************/ -.global cpy_clk_code - cpy_clk_code: +ENTRY(cpy_clk_code) /* Copy DPLL code into SRAM */ - adr r0, go_to_speed /* get addr of clock setting code */ - mov r2, #384 /* r2 size to copy (div by 32 bytes) */ - mov r1, r1 /* r1 <- dest address (passed in) */ - add r2, r2, r0 /* r2 <- source end address */ + 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] */ - bne next2 + 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 @@ -67,8 +67,7 @@ next2: * 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. ****************************************************************************/ -.global go_to_speed - go_to_speed: +ENTRY(go_to_speed) stmfd sp!, {r4 - r6} /* move into fast relock bypass */ @@ -129,6 +128,7 @@ wait2: nop ldmfd sp!, {r4 - r6} mov pc, lr /* back to caller, locked */ +ENDPROC(go_to_speed) _go_to_speed: .word go_to_speed @@ -169,17 +169,24 @@ pll_div_val5: #endif -.globl lowlevel_init -lowlevel_init: +ENTRY(lowlevel_init) ldr sp, SRAM_STACK - str ip, [sp] /* stash old link register */ + str ip, [sp] /* stash ip register */ mov ip, lr /* save link reg across call */ - bl s_init /* go setup pll, mux, memory */ - ldr ip, [sp] /* restore save ip */ +#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 - /* back to arch calling code */ - mov pc, lr +ENDPROC(lowlevel_init) /* the literal pools origin */ .ltorg @@ -359,3 +366,111 @@ 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)