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https://github.com/brain-hackers/u-boot-brain
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![Simon Glass](/assets/img/avatar_default.png)
The console includes a global variable and several functions that are only used by a small subset of U-Boot files. Before adding more functions, move the definitions into their own header file. Signed-off-by: Simon Glass <sjg@chromium.org>
607 lines
17 KiB
C
607 lines
17 KiB
C
/*
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* (C) Copyright 2003
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* Martin Winistoerfer, martinwinistoerfer@gmx.ch.
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* Atapted for PATI
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* Denis Peter, d.peter@mpl.ch
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* SPDX-License-Identifier: GPL-2.0+
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*/
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/***********************************************************************************
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* Bits for the SDRAM controller
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* -----------------------------
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*
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* CAL: CAS Latency. If cleared to 0 (default) the SDRAM controller asserts TA# on
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* the 2nd Clock after ACTIVE command (CAS Latency = 2). If set to 1 the SDRAM
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* controller asserts TA# on the 3rd Clock after ACTIVE command (CAS Latency = 3).
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* RCD: RCD ACTIVE to READ or WRITE Delay (Ras to Cas Delay). If cleared 0 (default)
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* tRCD of the SDRAM must equal or less 25ns. If set to 1 tRCD must be equal or less 50ns.
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* WREC:Write Recovery. If cleared 0 (default) tWR of the SDRAM must equal or less 25ns.
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* If set to 1 tWR must be equal or less 50ns.
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* RP: Precharge Command Time. If cleared 0 (default) tRP of the SDRAM must equal or less
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* 25ns. If set to 1 tRP must be equal or less 50ns.
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* RC: Auto Refresh to Active Time. If cleared 0 (default) tRC of the SDRAM must equal
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* or less 75ns. If set to 1 tRC must be equal or less 100ns.
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* LMR: Bit to set the Mode Register of the SDRAM. If set, the next access to the SDRAM
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* is the Load Mode Register Command.
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* IIP: Init in progress. Set to 1 for starting the init sequence
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* (Precharge All). As long this bit is set, the Precharge All is still in progress.
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* After command has completed, wait at least for 8 refresh (200usec) before proceed.
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**********************************************************************************/
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#include <common.h>
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#include <console.h>
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#include <mpc5xx.h>
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#include <stdio_dev.h>
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#include <pci_ids.h>
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#define PLX9056_LOC
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#include "plx9056.h"
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#include "pati.h"
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#if defined(__APPLE__)
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/* Leading underscore on symbols */
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# define SYM_CHAR "_"
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#else /* No leading character on symbols */
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# define SYM_CHAR
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#endif
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#undef SDRAM_DEBUG
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/*
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* Macros to generate global absolutes.
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*/
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#define GEN_SYMNAME(str) SYM_CHAR #str
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#define GEN_VALUE(str) #str
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#define GEN_ABS(name, value) \
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asm (".globl " GEN_SYMNAME(name)); \
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asm (GEN_SYMNAME(name) " = " GEN_VALUE(value))
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/************************************************************************
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* Early debug routines
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*/
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void write_hex (unsigned char i)
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{
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char cc;
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cc = i >> 4;
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cc &= 0xf;
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if (cc > 9)
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serial_putc (cc + 55);
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else
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serial_putc (cc + 48);
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cc = i & 0xf;
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if (cc > 9)
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serial_putc (cc + 55);
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else
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serial_putc (cc + 48);
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}
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#if defined(SDRAM_DEBUG)
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void write_4hex (unsigned long val)
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{
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write_hex ((unsigned char) (val >> 24));
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write_hex ((unsigned char) (val >> 16));
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write_hex ((unsigned char) (val >> 8));
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write_hex ((unsigned char) val);
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}
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#endif
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unsigned long in32(unsigned long addr)
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{
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unsigned long *p=(unsigned long *)addr;
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return *p;
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}
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void out32(unsigned long addr,unsigned long data)
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{
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unsigned long *p=(unsigned long *)addr;
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*p=data;
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}
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typedef struct {
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unsigned short boardtype; /* Board revision and Population Options */
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unsigned char cal; /* cas Latency 0:CAL=2 1:CAL=3 */
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unsigned char rcd; /* ras to cas delay 0:<25ns 1:<50ns*/
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unsigned char wrec; /* write recovery 0:<25ns 1:<50ns */
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unsigned char pr; /* Precharge Command Time 0:<25ns 1:<50ns */
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unsigned char rc; /* Auto Refresh to Active Time 0:<75ns 1:<100ns */
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unsigned char sz; /* log binary => Size = (4MByte<<sz) 5 = 128, 4 = 64, 3 = 32, 2 = 16, 1=8 */
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} sdram_t;
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const sdram_t sdram_table[] = {
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{ 0x0000, /* PATI Rev A, 16MByte -1 Board */
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1, /* Case Latenty = 3 */
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0, /* ras to cas delay 0 (20ns) */
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0, /* write recovery 0:<25ns 1:<50ns*/
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0, /* Precharge Command Time 0 (20ns) */
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0, /* Auto Refresh to Active Time 0 (68) */
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2 /* log binary => Size 2 = 16MByte, 1=8 */
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},
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{ 0xffff, /* terminator */
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0xff,
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0xff,
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0xff,
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0xff,
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0xff,
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0xff }
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};
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extern int mem_test (unsigned long start, unsigned long ramsize, int quiet);
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/*
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* Get RAM size.
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*/
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phys_size_t initdram(int board_type)
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{
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unsigned char board_rev;
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unsigned long reg;
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unsigned long lmr;
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int i,timeout;
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#if defined(SDRAM_DEBUG)
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reg=in32(PLD_CONFIG_BASE+PLD_PART_ID);
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puts("\n\nSYSTEM part 0x"); write_4hex(SYSCNTR_PART(reg));
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puts(" Vers 0x"); write_4hex(SYSCNTR_ID(reg));
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puts("\nSDRAM part 0x"); write_4hex(SDRAM_PART(reg));
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puts(" Vers 0x"); write_4hex(SDRAM_ID(reg));
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reg=in32(PLD_CONFIG_BASE+PLD_BOARD_TIMING);
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puts("\nBoard rev. 0x"); write_4hex(SYSCNTR_BREV(reg));
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putc('\n');
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#endif
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reg=in32(PLD_CONFIG_BASE+PLD_BOARD_TIMING);
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board_rev=(unsigned char)(SYSCNTR_BREV(reg));
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i=0;
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while(1) {
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if(sdram_table[i].boardtype==0xffff) {
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puts("ERROR, found no table for Board 0x");
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write_hex(board_rev);
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while(1);
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}
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if(sdram_table[i].boardtype==(unsigned char)board_rev)
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break;
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i++;
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}
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/* Set CAL, RCD, WREQ, PR and RC Bits */
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#if defined(SDRAM_DEBUG)
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puts("Set CAL, RCD, WREQ, PR and RC Bits\n");
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#endif
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/* mask bits */
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reg &= ~(SET_REG_BIT(1,SDRAM_CAL) | SET_REG_BIT(1,SDRAM_RCD) | SET_REG_BIT(1,SDRAM_WREQ) |
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SET_REG_BIT(1,SDRAM_PR) | SET_REG_BIT(1,SDRAM_RC) | SET_REG_BIT(1,SDRAM_LMR) |
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SET_REG_BIT(1,SDRAM_IIP) | SET_REG_BIT(1,SDRAM_RES0));
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/* set bits */
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reg |= (SET_REG_BIT(sdram_table[i].cal,SDRAM_CAL) |
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SET_REG_BIT(sdram_table[i].rcd,SDRAM_RCD) |
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SET_REG_BIT(sdram_table[i].wrec,SDRAM_WREQ) |
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SET_REG_BIT(sdram_table[i].pr,SDRAM_PR) |
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SET_REG_BIT(sdram_table[i].rc,SDRAM_RC));
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out32(PLD_CONFIG_BASE+PLD_BOARD_TIMING,reg);
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/* step 2 set IIP */
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#if defined(SDRAM_DEBUG)
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puts("step 2 set IIP\n");
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#endif
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/* step 2 set IIP */
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reg |= SET_REG_BIT(1,SDRAM_IIP);
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timeout=0;
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while (timeout!=0xffff) {
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__asm__ volatile("eieio");
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reg=in32(PLD_CONFIG_BASE+PLD_BOARD_TIMING);
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if((reg & SET_REG_BIT(1,SDRAM_IIP))==0)
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break;
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timeout++;
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udelay(1);
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}
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/* wait for at least 8 refresh */
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udelay(1000);
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/* set LMR */
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reg |= SET_REG_BIT(1,SDRAM_LMR);
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out32(PLD_CONFIG_BASE+PLD_BOARD_TIMING,reg);
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__asm__ volatile("eieio");
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lmr=0x00000002; /* sequential burst 4 data */
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if(sdram_table[i].cal==1)
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lmr|=0x00000030; /* cal = 3 */
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else
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lmr|=0000000020; /* cal = 2 */
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/* rest standard operation programmed write burst length */
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/* we have a x32 bit bus to the SDRAM, so shift the addr with 2 */
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lmr<<=2;
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in32(CONFIG_SYS_SDRAM_BASE + lmr);
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/* ok, we're done, return SDRAM size */
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return ((0x400000 << sdram_table[i].sz)); /* log2 value of 4MByte */
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}
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void set_flash_vpp(int ext_vpp, int ext_wp, int int_vpp)
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{
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unsigned long reg;
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reg=in32(PLD_CONF_REG2+PLD_CONFIG_BASE);
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reg &= ~(SET_REG_BIT(1,SYSCNTR_CPU_VPP) |
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SET_REG_BIT(1,SYSCNTR_FL_VPP) |
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SET_REG_BIT(1,SYSCNTR_FL_WP));
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reg |= (SET_REG_BIT(int_vpp,SYSCNTR_CPU_VPP) |
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SET_REG_BIT(ext_vpp,SYSCNTR_FL_VPP) |
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SET_REG_BIT(ext_wp,SYSCNTR_FL_WP));
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out32(PLD_CONF_REG2+PLD_CONFIG_BASE,reg);
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udelay(100);
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}
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void show_pld_regs(void)
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{
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unsigned long reg,reg1;
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reg=in32(PLD_CONFIG_BASE+PLD_PART_ID);
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printf("\nSYSTEM part %ld, Vers %ld\n",SYSCNTR_PART(reg),SYSCNTR_ID(reg));
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printf("SDRAM part %ld, Vers %ld\n",SDRAM_PART(reg),SDRAM_ID(reg));
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reg=in32(PLD_CONFIG_BASE+PLD_BOARD_TIMING);
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printf("Board rev. %c\n",(char) (SYSCNTR_BREV(reg)+'A'));
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printf("Waitstates %ld\n",GET_SYSCNTR_FLWAIT(reg));
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printf("SDRAM: CAL=%ld RCD=%ld WREQ=%ld PR=%ld\n RC=%ld LMR=%ld IIP=%ld\n",
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GET_REG_BIT(reg,SDRAM_CAL),GET_REG_BIT(reg,SDRAM_RCD),
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GET_REG_BIT(reg,SDRAM_WREQ),GET_REG_BIT(reg,SDRAM_PR),
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GET_REG_BIT(reg,SDRAM_RC),GET_REG_BIT(reg,SDRAM_LMR),
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GET_REG_BIT(reg,SDRAM_IIP));
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reg=in32(PLD_CONFIG_BASE+PLD_CONF_REG1);
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reg1=in32(PLD_CONFIG_BASE+PLD_CONF_REG2);
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printf("HW Config: FLAG=%ld IP=%ld index=%ld PRPM=%ld\n ICW=%ld ISB=%ld BDIS=%ld PCIM=%ld\n",
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GET_REG_BIT(reg,SYSCNTR_FLAG),GET_REG_BIT(reg,SYSCNTR_IP),
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GET_SYSCNTR_BOOTIND(reg),GET_REG_BIT(reg,SYSCNTR_PRM),
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GET_REG_BIT(reg,SYSCNTR_ICW),GET_SYSCNTR_ISB(reg),
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GET_REG_BIT(reg1,SYSCNTR_BDIS),GET_REG_BIT(reg1,SYSCNTR_PCIM));
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printf("Switches: MUX=%ld PCI_DIS=%ld Boot_EN=%ld Config=%ld\n",GET_SDRAM_MUX(reg),
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GET_REG_BIT(reg,SDRAM_PDIS),GET_REG_BIT(reg1,SYSCNTR_BOOTEN),
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GET_SYSCNTR_CFG(reg1));
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printf("Misc: RIP=%ld CPU_VPP=%ld FLSH_VPP=%ld FLSH_WP=%ld\n\n",
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GET_REG_BIT(reg,SDRAM_RIP),GET_REG_BIT(reg1,SYSCNTR_CPU_VPP),
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GET_REG_BIT(reg1,SYSCNTR_FL_VPP),GET_REG_BIT(reg1,SYSCNTR_FL_WP));
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}
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/****************************************************************
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* Setting IOs
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* -----------
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* GPIO6 is User LED1
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* GPIO7 is Interrupt PLX (Output)
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* GPIO5 is User LED0
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* GPIO2 is PLX USERi (Output)
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* GPIO1 is PLX Interrupt (Input)
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****************************************************************/
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void init_ios(void)
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{
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volatile immap_t * immr = (immap_t *) CONFIG_SYS_IMMR;
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volatile sysconf5xx_t *sysconf = &immr->im_siu_conf;
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unsigned long reg;
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reg=sysconf->sc_sgpiocr; /* Data direction register */
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reg &= ~0x67000000;
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reg |= 0x27000000; /* set outpupts */
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sysconf->sc_sgpiocr=reg; /* Data direction register */
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reg=sysconf->sc_sgpiodt2; /* Data register */
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/* set output to 0 */
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reg &= ~0x27000000;
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/* set IRQ and USERi to 1 */
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reg |= 0x28000000;
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sysconf->sc_sgpiodt2=reg; /* Data register */
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}
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void user_led0(int led_on)
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{
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volatile immap_t * immr = (immap_t *) CONFIG_SYS_IMMR;
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volatile sysconf5xx_t *sysconf = &immr->im_siu_conf;
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unsigned long reg;
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reg=sysconf->sc_sgpiodt2; /* Data register */
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if(led_on) /* set output to 1 */
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reg |= 0x04000000;
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else
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reg &= ~0x04000000;
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sysconf->sc_sgpiodt2=reg; /* Data register */
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}
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void user_led1(int led_on)
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{
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volatile immap_t * immr = (immap_t *) CONFIG_SYS_IMMR;
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volatile sysconf5xx_t *sysconf = &immr->im_siu_conf;
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unsigned long reg;
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reg=sysconf->sc_sgpiodt2; /* Data register */
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if(led_on) /* set output to 1 */
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reg |= 0x02000000;
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else
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reg &= ~0x02000000;
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sysconf->sc_sgpiodt2=reg; /* Data register */
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}
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int board_early_init_f(void)
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{
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spi_init_f();
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return 0;
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}
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/****************************************************************
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* Last Stage Init
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****************************************************************/
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int last_stage_init (void)
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{
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init_ios();
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return 0;
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}
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/****************************************************************
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* Check the board
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****************************************************************/
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#define BOARD_NAME "PATI"
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int checkboard (void)
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{
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char s[50];
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ulong reg;
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char rev;
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int i;
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puts ("\nBoard: ");
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reg=in32(PLD_CONFIG_BASE+PLD_BOARD_TIMING);
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rev=(char)(SYSCNTR_BREV(reg)+'A');
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i = getenv_f("serial#", s, 32);
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if ((i == -1)) {
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puts ("### No HW ID - assuming " BOARD_NAME);
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printf(" Rev. %c\n",rev);
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}
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else {
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s[sizeof(BOARD_NAME)-1] = 0;
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printf ("%s-1 Rev %c SN: %s\n", s,rev,
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&s[sizeof(BOARD_NAME)]);
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}
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set_flash_vpp(1,0,0); /* set Flash VPP */
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return 0;
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}
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#ifdef CONFIG_SYS_PCI_CON_DEVICE
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/************************************************************************
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* PCI Communication
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*
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* Alive (Pinging):
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* ----------------
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* PCI Host sends message ALIVE, Local acknowledges with ALIVE
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*
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* PCI_CON console over PCI:
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* -------------------------
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* Local side:
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* - uses PCI9056_LOC_TO_PCI_DBELL register to signal that
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* data is avaible (PCIMSG_CONN)
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* - uses PCI9056_MAILBOX1 to send data
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* - uses PCI9056_MAILBOX0 to receive data
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* PCI side:
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* - uses PCI9056_PCI_TO_LOC_DBELL register to signal that
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* data is avaible (PCIMSG_CONN)
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* - uses PCI9056_MAILBOX0 to send data
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* - uses PCI9056_MAILBOX1 to receive data
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*
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* How it works:
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* Send:
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* - check if PCICON_TRANSMIT_REG is empty
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* - write data or'ed with 0x80000000 into the PCICON_TRANSMIT_REG
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* - write PCIMSG_CONN into the PCICON_DBELL_REG to signal a data
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* is waiting
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* Receive:
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* - get an interrupt via the PCICON_ACK_REG register message
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* PCIMSG_CONN
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* - write the data from the PCICON_RECEIVE_REG into the receive
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* buffer and if the receive buffer is not full, clear the
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* PCICON_RECEIVE_REG (this allows the counterpart to write more data)
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* - Clear the interrupt by writing 0xFFFFFFFF to the PCICON_ACK_REG
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*
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* The PCICON_RECEIVE_REG must be cleared by the routine which reads
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* the receive buffer if the buffer is not full any more
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*
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*/
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#undef PCI_CON_DEBUG
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#ifdef PCI_CON_DEBUG
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#define PCI_CON_PRINTF(fmt,args...) serial_printf (fmt ,##args)
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#else
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#define PCI_CON_PRINTF(fmt,args...)
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#endif
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/*********************************************************
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* we work only with a receive buffer on eiter side.
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* Transmit buffer is free, if mailbox is cleared.
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* Transmit character is or'ed with 0x80000000
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* PATI receive register MAILBOX0
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* PATI transmit register MAILBOX1
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*********************************************************/
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#define PCICON_RECEIVE_REG PCI9056_MAILBOX0
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#define PCICON_TRANSMIT_REG PCI9056_MAILBOX1
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#define PCICON_DBELL_REG PCI9056_LOC_TO_PCI_DBELL
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#define PCICON_ACK_REG PCI9056_PCI_TO_LOC_DBELL
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#define PCIMSG_ALIVE 0x1
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#define PCIMSG_CONN 0x2
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#define PCIMSG_DISC 0x3
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#define PCIMSG_CON_DATA 0x5
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#define PCICON_GET_REG(x) (in32(x + PCI_CONFIG_BASE))
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#define PCICON_SET_REG(x,y) (out32(x + PCI_CONFIG_BASE,y))
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#define PCICON_TX_FLAG 0x80000000
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#define REC_BUFFER_SIZE 0x100
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int recbuf[REC_BUFFER_SIZE];
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static int r_ptr = 0;
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int w_ptr;
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struct stdio_dev pci_con_dev;
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int conn=0;
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int buff_full=0;
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void pci_con_put_it(const char c)
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{
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/* Test for completition */
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unsigned long reg;
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do {
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reg=PCICON_GET_REG(PCICON_TRANSMIT_REG);
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}while(reg);
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reg=PCICON_TX_FLAG + c;
|
|
PCICON_SET_REG(PCICON_TRANSMIT_REG,reg);
|
|
PCICON_SET_REG(PCICON_DBELL_REG,PCIMSG_CON_DATA);
|
|
}
|
|
|
|
void pci_con_putc(struct stdio_dev *dev, const char c)
|
|
{
|
|
pci_con_put_it(c);
|
|
if(c == '\n')
|
|
pci_con_put_it('\r');
|
|
}
|
|
|
|
|
|
int pci_con_getc(struct stdio_dev *dev)
|
|
{
|
|
int res;
|
|
int diff;
|
|
while(r_ptr==(volatile int)w_ptr);
|
|
res=recbuf[r_ptr++];
|
|
if(r_ptr==REC_BUFFER_SIZE)
|
|
r_ptr=0;
|
|
if(w_ptr<r_ptr)
|
|
diff=r_ptr+REC_BUFFER_SIZE-w_ptr;
|
|
else
|
|
diff=r_ptr-w_ptr;
|
|
if((diff<(REC_BUFFER_SIZE-4)) && buff_full) {
|
|
/* clear Mail box */
|
|
buff_full=0;
|
|
PCICON_SET_REG(PCICON_RECEIVE_REG,0L);
|
|
}
|
|
return res;
|
|
}
|
|
|
|
int pci_con_tstc(struct stdio_dev *dev)
|
|
{
|
|
if(r_ptr==(volatile int)w_ptr)
|
|
return 0;
|
|
return 1;
|
|
}
|
|
|
|
void pci_con_puts(struct stdio_dev *dev, const char *s)
|
|
{
|
|
while (*s) {
|
|
pci_con_putc(*s);
|
|
++s;
|
|
}
|
|
}
|
|
|
|
void pci_con_init (void)
|
|
{
|
|
w_ptr = 0;
|
|
r_ptr = 0;
|
|
PCICON_SET_REG(PCICON_RECEIVE_REG,0L);
|
|
conn=1;
|
|
}
|
|
|
|
/*******************************************
|
|
* IRQ routine
|
|
******************************************/
|
|
int pci_dorbell_irq(void)
|
|
{
|
|
unsigned long reg,data;
|
|
int diff;
|
|
reg=PCICON_GET_REG(PCI9056_INT_CTRL_STAT);
|
|
PCI_CON_PRINTF(" PCI9056_INT_CTRL_STAT = %08lX\n",reg);
|
|
if(reg & (1<<20) ) {
|
|
/* read doorbell */
|
|
reg=PCICON_GET_REG(PCICON_ACK_REG);
|
|
switch(reg) {
|
|
case PCIMSG_ALIVE:
|
|
PCI_CON_PRINTF(" Alive\n");
|
|
PCICON_SET_REG(PCICON_DBELL_REG,PCIMSG_ALIVE);
|
|
break;
|
|
case PCIMSG_CONN:
|
|
PCI_CON_PRINTF(" Conn %d",conn);
|
|
w_ptr = 0;
|
|
r_ptr = 0;
|
|
buff_full=0;
|
|
PCICON_SET_REG(PCICON_RECEIVE_REG,0L);
|
|
conn=1;
|
|
PCI_CON_PRINTF(" ... %d\n",conn);
|
|
break;
|
|
case PCIMSG_CON_DATA:
|
|
data=PCICON_GET_REG(PCICON_RECEIVE_REG);
|
|
recbuf[w_ptr++]=(int)(data&0xff);
|
|
PCI_CON_PRINTF(" Data Console %lX, %X %d %d %X\n",data,((int)(data&0xFF)),
|
|
r_ptr,w_ptr,recbuf[w_ptr-1]);
|
|
if(w_ptr==REC_BUFFER_SIZE)
|
|
w_ptr=0;
|
|
if(w_ptr<r_ptr)
|
|
diff=r_ptr+REC_BUFFER_SIZE-w_ptr;
|
|
else
|
|
diff=r_ptr-w_ptr;
|
|
if(diff>(REC_BUFFER_SIZE-4))
|
|
buff_full=1;
|
|
else
|
|
/* clear Mail box */
|
|
PCICON_SET_REG(PCICON_RECEIVE_REG,0L);
|
|
break;
|
|
default:
|
|
serial_printf(" PCI9056_PCI_TO_LOC_DBELL = %08lX\n",reg);
|
|
}
|
|
/* clear IRQ */
|
|
PCICON_SET_REG(PCICON_ACK_REG,~0L);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
void pci_con_connect(void)
|
|
{
|
|
unsigned long reg;
|
|
conn=0;
|
|
reg=PCICON_GET_REG(PCI9056_INT_CTRL_STAT);
|
|
/* default 0x0f010180 */
|
|
reg &= 0xff000000;
|
|
reg |= 0x00030000; /* enable local dorbell */
|
|
reg |= 0x00000300; /* enable PCI dorbell */
|
|
PCICON_SET_REG(PCI9056_INT_CTRL_STAT , reg);
|
|
irq_install_handler (0x2, (interrupt_handler_t *) pci_dorbell_irq,NULL);
|
|
memset (&pci_con_dev, 0, sizeof (pci_con_dev));
|
|
strcpy (pci_con_dev.name, "pci_con");
|
|
pci_con_dev.flags = DEV_FLAGS_OUTPUT | DEV_FLAGS_INPUT;
|
|
pci_con_dev.putc = pci_con_putc;
|
|
pci_con_dev.puts = pci_con_puts;
|
|
pci_con_dev.getc = pci_con_getc;
|
|
pci_con_dev.tstc = pci_con_tstc;
|
|
stdio_register (&pci_con_dev);
|
|
printf("PATI ready for PCI connection, type ctrl-c for exit\n");
|
|
do {
|
|
udelay(10);
|
|
if((volatile int)conn)
|
|
break;
|
|
if(ctrlc()) {
|
|
irq_free_handler(0x2);
|
|
return;
|
|
}
|
|
}while(1);
|
|
console_assign(stdin,"pci_con");
|
|
console_assign(stderr,"pci_con");
|
|
console_assign(stdout,"pci_con");
|
|
}
|
|
|
|
void pci_con_disc(void)
|
|
{
|
|
console_assign(stdin,"serial");
|
|
console_assign(stderr,"serial");
|
|
console_assign(stdout,"serial");
|
|
PCICON_SET_REG(PCICON_DBELL_REG,PCIMSG_DISC);
|
|
/* reconnection */
|
|
irq_free_handler(0x02);
|
|
pci_con_connect();
|
|
}
|
|
#endif /* #ifdef CONFIG_SYS_PCI_CON_DEVICE */
|
|
|
|
/*
|
|
* Absolute environment address for linker file.
|
|
*/
|
|
GEN_ABS(env_start, CONFIG_ENV_OFFSET + CONFIG_SYS_FLASH_BASE);
|