* Richard Woodruff <r-woodruff2@ti.com>
* Syed Mohammed Khasim <khasim@ti.com>
*
- * 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 <config.h>
#include <version.h>
#include <asm/arch/mem.h>
#include <asm/arch/clocks_omap3.h>
+#include <linux/linkage.h>
_TEXT_BASE:
.word CONFIG_SYS_TEXT_BASE /* sdram load addr from config.mk */
+#ifdef CONFIG_SPL_BUILD
+ENTRY(save_boot_params)
+ ldr r4, =omap3_boot_device
+ ldr r5, [r0, #0x4]
+ and r5, r5, #0xff
+ str r5, [r4]
+ bx lr
+ENDPROC(save_boot_params)
+#endif
+
+ENTRY(omap3_gp_romcode_call)
+ PUSH {r4-r12, lr} @ Save all registers from ROM code!
+ MOV r12, r0 @ Copy the Service ID in R12
+ MOV r0, r1 @ Copy parameter to R0
+ mcr p15, 0, r0, c7, c10, 4 @ DSB
+ mcr p15, 0, r0, c7, c10, 5 @ DMB
+ .word 0xe1600070 @ SMC #0 to enter monitor - hand assembled
+ @ because we use -march=armv5
+ POP {r4-r12, pc}
+ENDPROC(omap3_gp_romcode_call)
+
+/*
+ * 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
* 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 */
nop
ldmfd sp!, {r4 - r6}
mov pc, lr /* back to caller, locked */
+ENDPROC(go_to_speed)
_go_to_speed: .word go_to_speed
#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
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
*
.word 26000, 432, 12, 9, 16, 9, 4, 3, 1
.word 38400, 360, 15, 9, 16, 5, 4, 3, 1
-.globl get_36x_mpu_dpll_param
-get_36x_mpu_dpll_param:
+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)
-.globl get_36x_iva_dpll_param
-get_36x_iva_dpll_param:
+ENTRY(get_36x_iva_dpll_param)
adr r0, iva_36x_dpll_param
mov pc, lr
+ENDPROC(get_36x_iva_dpll_param)
-.globl get_36x_core_dpll_param
-get_36x_core_dpll_param:
+ENTRY(get_36x_core_dpll_param)
adr r0, core_36x_dpll_param
mov pc, lr
+ENDPROC(get_36x_core_dpll_param)
-.globl get_36x_per_dpll_param
-get_36x_per_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)
projects / karo-tx-uboot.git / blobdiff