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STR750: Add SMI interface support 

Modified spearsmi driver to include support for STR75x
Added missing initialization in tcl file for STR750

Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
This commit is contained in:
Antonio Borneo 2010-11-17 11:28:46 +08:00 committed by Øyvind Harboe
parent e6fc371e2e
commit 4bbdf966d4
2 changed files with 56 additions and 36 deletions
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80
src/flash/nor/spearsmi.c
View File

@ -42,8 +42,6 @@
#include <jtag/jtag.h>
#include <helper/time_support.h>
#define JTAG_ID_3XX_6XX (0x07926041)
#define SMI_READ_REG(a) (_SMI_READ_REG(a))
#define _SMI_READ_REG(a) \
{ \
@ -84,12 +82,6 @@
#define SMI_BANK_SIZE (0x01000000)
#define SMI_BASE_3XX_6XX (0xf8000000)
#define SMI_CFGREG_3XX_6XX (0xfc000000)
/* #define SMI_BASE_13XX (0xe6000000) */
/* #define SMI_CFGREG_13XX (0xea000000) */
#define SMI_CR1 (0x00) /* Control register 1 */
#define SMI_CR2 (0x04) /* Control register 2 */
#define SMI_SR (0x08) /* Status register */
@ -192,6 +184,20 @@ static struct flash_device flash_devices[] = {
FLASH_ID(NULL, 0, 0, 0, 0, 0)
};
struct spearsmi_target {
char *name;
uint32_t tap_idcode;
uint32_t smi_base;
uint32_t io_base;
};
static struct spearsmi_target target_devices[] = {
/* name, tap_idcode, smi_base, io_base */
{ "SPEAr3xx/6xx", 0x07926041, 0xf8000000, 0xfc000000 },
{ "STR75x", 0x4f1f0041, 0x80000000, 0x90000000 },
{ NULL, 0, 0, 0 }
};
FLASH_BANK_COMMAND_HANDLER(spearsmi_flash_bank_command)
{
struct spearsmi_flash_bank *spearsmi_info;
@ -602,44 +608,46 @@ static int spearsmi_probe(struct flash_bank *bank)
uint32_t io_base;
struct flash_sector *sectors;
uint32_t id = 0; /* silence uninitialized warning */
struct spearsmi_target *target_device;
int retval;
if (spearsmi_info->probed)
free(bank->sectors);
spearsmi_info->probed = 0;
/* check for SPEAr device */
switch (target->tap->idcode)
{
case JTAG_ID_3XX_6XX:
/* SPEAr3xx/6xx */
spearsmi_info->io_base = SMI_CFGREG_3XX_6XX;
switch (bank->base)
{
case SMI_BASE_3XX_6XX:
spearsmi_info->bank_num = SMI_SEL_BANK0;
break;
case SMI_BASE_3XX_6XX + SMI_BANK_SIZE:
spearsmi_info->bank_num = SMI_SEL_BANK1;
break;
case SMI_BASE_3XX_6XX + 2*SMI_BANK_SIZE:
spearsmi_info->bank_num = SMI_SEL_BANK2;
break;
case SMI_BASE_3XX_6XX + 3*SMI_BANK_SIZE:
spearsmi_info->bank_num = SMI_SEL_BANK3;
break;
default:
LOG_ERROR("Invalid base address 0x%" PRIx32, bank->base);
return ERROR_FAIL;
}
for (target_device=target_devices ; target_device->name ; ++target_device)
if (target_device->tap_idcode == target->tap->idcode)
break;
default:
LOG_ERROR("0x%" PRIx32 " is invalid id for SPEAr device",
if (!target_device->name)
{
LOG_ERROR("Device ID 0x%" PRIx32 " is not known as SMI capable",
target->tap->idcode);
return ERROR_FAIL;
}
switch (bank->base - target_device->smi_base)
{
case 0:
spearsmi_info->bank_num = SMI_SEL_BANK0;
break;
case SMI_BANK_SIZE:
spearsmi_info->bank_num = SMI_SEL_BANK1;
break;
case 2*SMI_BANK_SIZE:
spearsmi_info->bank_num = SMI_SEL_BANK2;
break;
case 3*SMI_BANK_SIZE:
spearsmi_info->bank_num = SMI_SEL_BANK3;
break;
default:
LOG_ERROR("Invalid SMI base address 0x%" PRIx32, bank->base);
return ERROR_FAIL;
}
io_base = spearsmi_info->io_base;
io_base = target_device->io_base;
spearsmi_info->io_base = io_base;
LOG_DEBUG("Valid SMI on device %s at address 0x%" PRIx32,
target_device->name, bank->base);
/* read and decode flash ID; returns in SW mode */
retval = read_flash_id(bank, &id);

12
tcl/target/str750.cfg
View File

@ -39,6 +39,7 @@ $_TARGETNAME configure -event reset-start { adapter_khz 10 }
$_TARGETNAME configure -event reset-init {
adapter_khz 3000
init_smi
# Because the hardware cannot be interrogated for the protection state
# of sectors, initialize all the sectors to be unprotected. The initial
# state is reflected by the driver, too.
@ -58,3 +59,14 @@ flash bank $_FLASHNAME str7x 0x20000000 0x00040000 0 0 $_TARGETNAME STR75x
set _FLASHNAME $_CHIPNAME.flash1
flash bank $_FLASHNAME str7x 0x200C0000 0x00004000 0 0 $_TARGETNAME STR75x
# Serial NOR on SMI CS0.
set _FLASHNAME $_CHIPNAME.snor
flash bank $_FLASHNAME spearsmi 0x80000000 0 0 0 $_TARGETNAME
source [find mem_helper.tcl]
proc init_smi {} {
mmw 0x60000030 0x01000000 0x00000000; # enable clock for GPIO regs
mmw 0xffffe420 0x00000001 0x00000000; # set SMI_EN bit
mmw 0x90000000 0x00000001 0x00000000; # set BLOCK_EN_1
}