; --------------------------------------------------------------------------------
; @Title: eMMC FLASH Programming Script for AM3359 (BeagleBone Black)
; @Description:
; eMMC FLASH(Micron, MTFC4GLDEA, 4GB) is connected
;
; Internal SRAM: 0x40300000
;
; SD/MMC Controller Register : 0x481D8000
;
; @Author: jjeong
; @Copyright: (C) 1989-2022 Lauterbach GmbH, licensed for use with TRACE32(R) only
; @Chip: AM3359
; @Keywords: flash eMMC
; --------------------------------------------------------------------------------
; $Id: am3359-emmc.cmm 12049 2023-04-20 12:32:16Z bschroefel $

LOCAL &arg1
ENTRY &arg1
&arg1=STRing.UPpeR("&arg1")  // for example "PREPAREONLY"


SYStem.CPU AM3359
SYStem.Up

//Disable cache & mmu
PER.Set.simple C15:0x1 %Long 0xc50078

//Disable watchdog
Data.Set A:0x44E35048 %Long  0xAAAA
Data.Set A:0x44E35048 %Long  0x5555

//Enable OCM memory 
B::Data.Set A:0x44E0002C %Long 0x2  

//Pin mux configuration
Data.Set A:0x44E10880 %Long  0x2A   ; conf_gpmc_csn1, GPMC_CSN1/GPMC_CLK/MMC1_CLK
Data.Set A:0x44E10884 %Long  0x32   ; conf_gpmc_csn2, GPMC_CSN2/GPMC_BE1N/MMC1_CMD
Data.Set A:0x44E10800 %Long  0x31   ; GPMC_AD0/MMC1_DAT0
Data.Set A:0x44E10804 %Long  0x31   ; GPMC_AD1/MMC1_DAT1
Data.Set A:0x44E10808 %Long  0x31   ; GPMC_AD2/MMC1_DAT2
Data.Set A:0x44E1080C %Long  0x31   ; GPMC_AD3/MMC1_DAT3

// CM_PER_MMC1_CLKCTRL , This register manages the MMC1 clocks.
Data.Set A:0x44E000F4 %Long 0x00030002  

// pll configuration if you want to program fast
;Data.Set A:<addr> %Long <data>

//MMC controller configuration
&MMC_BASE=0x481D8000
Data.Set A:(&MMC_BASE+0x0240) %LE %Long 0x2e10080
Data.Set A:(&MMC_BASE+0x0110) %LE %Long 0x2017 ; SD_SYSCONFIG
Data.Set A:(&MMC_BASE+0x012C) %LE %Long 0x0600
Data.Set A:(&MMC_BASE+0x0204) %LE %Long 0x0200
Data.Set A:(&MMC_BASE+0x0228) %LE %Long 0x0c10  ; select power level 3.0v
Data.Set A:(&MMC_BASE+0x0228) %LE %Long 0x0d10  ; power on for SD/MMC card
Data.Set A:(&MMC_BASE+0x0234) %LE %Long 0x307f0033
Data.Set A:(&MMC_BASE+0x022C) %LE %Long 0xE6807  

FLASHFILE.RESet

//FLASHFILE.CONFIG <MMC Controller Base,(MMCHS_BLK-0x4)>  0x0   0x0
FLASHFILE.CONFIG (&MMC_BASE+0x200)  0x0   0x0

//FLASHFILE.target <Code_range>       <Data_range>       <Algorithm file>
FLASHFILE.TARGET 0x40300000++0x1FFF 0x40302000++0x1FFF  ~~/demo/arm/flash/byte/emmc_omap.bin  /KEEP

// the mmc clock has to be < 400khz to pass the MMC init state
PER.Set.Field A:(&MMC_BASE+0x022C) %Long 0xFFC0  0x1a0 ; <400khz [15:6]=0x1a0
//Get FLASH info
FLASHFILE.GETID

// MMC mode is switched to the transfer state (tran) after the FLASHFILE.GETID command
// MMC allowes to access the higher clk speed on the transfer state

PER.Set.Field A:(&MMC_BASE+0x022C) %Long 0xFFC0  0x2 ; change to the maximum clk [15:6]=0x2
//Get EXTended CSD registers
FLASHFILE.GETEXTCSD
  
//End of the test prepareonly
IF "&arg1"=="PREPAREONLY"
ENDDO


//When you access to the other partition on the flash
; FLASHFILE.SETEXTCSD  179. 0x00   ; access: partition null, no boot, access: no boot partition
; FLASHFILE.SETEXTCSD  179. 0x48   ; access: partition null
; FLASHFILE.SETEXTCSD  179. 0x49   ; access: partition boot 1
; FLASHFILE.SETEXTCSD  179. 0x4A   ; access: partition boot 2

//Dump FLASH
 FLASHFILE.DUMP 0x0

//Erase FLASH 
 ;FLASHFILE.ERASE 0x0--0xFFFFFF  

//Write FLASH
 ;FLASHFILE.LOAD  * 0x0 
  
//Verify FLASH
 ;FLASHFILE.LOAD  * 0x0  /ComPare

ENDDO