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/* all about winbond factory */
#include <string.h>
#include <stdlib.h>
#include <time.h>
#include <pthread.h>
#include <errno.h>
#include <unistd.h>
#include <hal_timer.h>
#include "inter.h"
#define NOR_WINBOND_CMD_BLK_LOCK_STATUS (0x3D)
#define NOR_WINBOND_CMD_BLK_LOCK (0x36)
#define NOR_WINBOND_CMD_BLK_UNLOCK (0x39)
#define NOR_WINBOND_CMD_WRITE_SR3 0x11
#define NOR_WINBOND_CMD_READ_SR3 0x15
#define NOR_WINBOND_WPS_MASK BIT(2)
#define NOR_WINBOND_RCV_BIT BIT(3)
static struct nor_info idt_winbond[] =
{
{
.model = "w25q64jv",
.id = {0xef, 0x40, 0x17},
.total_size = SZ_8M,
.flag = SUPPORT_GENERAL,
},
{
.model = "w25q128jv",
.id = {0xef, 0x40, 0x18},
.total_size = SZ_16M,
.flag = SUPPORT_GENERAL | SUPPORT_INDIVIDUAL_PROTECT,
},
};
static int nor_winbond_set_wps(int val)
{
int ret;
unsigned char tbuf[2], reg[2], sr3;
/* read status register-3 */
tbuf[0] = NOR_WINBOND_CMD_READ_SR3;
ret = nor_transfer(1, tbuf, 1, reg, 2);
if (ret) {
SPINOR_ERR("winbond read status register-3 fail\n");
return ret;
}
sr3 = reg[0];
if (val)
sr3 |= NOR_WINBOND_WPS_MASK;
else
sr3 &= ~NOR_WINBOND_WPS_MASK;
/* already set before, no need to set again */
if (sr3 == reg[0])
return 0;
/* write status regsiter-3 */
ret = nor_write_enable();
if (ret)
return ret;
tbuf[0] = NOR_WINBOND_CMD_WRITE_SR3;
tbuf[1] = sr3;
ret = nor_transfer(2, tbuf, 2, NULL, 0);
if (ret)
return ret;
return nor_wait_ready(10, 100 * 1000);
}
static int nor_winbond_set_rcv(int val)
{
int ret;
unsigned char tbuf[2], reg[2], sr3;
/* read status register-3 */
tbuf[0] = NOR_WINBOND_CMD_READ_SR3;
ret = nor_transfer(1, tbuf, 1, reg, 2);
if (ret) {
SPINOR_ERR("winbond read status register-3 fail\n");
return ret;
}
sr3 = reg[0];
if (val)
sr3 |= NOR_WINBOND_RCV_BIT;
else
sr3 &= ~NOR_WINBOND_RCV_BIT;
/* already set before, no need to set again */
if (sr3 == reg[0])
return 0;
/* write status regsiter-3 */
ret = nor_write_enable();
if (ret)
return ret;
tbuf[0] = NOR_WINBOND_CMD_WRITE_SR3;
tbuf[1] = sr3;
ret = nor_transfer(2, tbuf, 2, NULL, 0);
if (ret)
return ret;
return nor_wait_ready(10, 100 * 1000);
}
static int nor_winbond_init(struct nor_flash *nor)
{
return nor_winbond_set_rcv(true);
}
static int nor_winbond_init_lock(struct nor_flash *nor)
{
return nor_winbond_set_wps(true);
}
static void nor_winbond_deinit_lock(struct nor_flash *nor)
{
nor_winbond_set_wps(false);
}
static bool nor_winbond_blk_islock(unsigned int addr)
{
int ret;
unsigned char tbuf[4], st;
tbuf[0] = NOR_WINBOND_CMD_BLK_LOCK_STATUS;
tbuf[1] = addr >> 16;
tbuf[2] = addr >> 8;
tbuf[3] = addr & 0xFF;
ret = nor_transfer(4, tbuf, 4, &st, 1);
if (ret)
return ret;
return st & 0x1 ? true : false;
}
static int nor_winbond_blk_unlock(unsigned int addr)
{
int ret;
unsigned char tbuf[4];
ret = nor_write_enable();
if (ret)
return ret;
tbuf[0] = NOR_WINBOND_CMD_BLK_UNLOCK;
tbuf[1] = addr >> 16;
tbuf[2] = addr >> 8;
tbuf[3] = addr & 0xFF;
ret = nor_transfer(4, tbuf, 4, NULL, 0);
if (ret)
return ret;
if (nor_winbond_blk_islock(addr) == true)
return -EBUSY;
return 0;
}
static int nor_winbond_blk_lock(unsigned int addr)
{
int ret;
unsigned char tbuf[4];
ret = nor_write_enable();
if (ret)
return ret;
tbuf[0] = NOR_WINBOND_CMD_BLK_LOCK;
tbuf[1] = addr >> 16;
tbuf[2] = addr >> 8;
tbuf[3] = addr & 0xFF;
ret = nor_transfer(4, tbuf, 4, NULL, 0);
if (ret)
return ret;
if (nor_winbond_blk_islock(addr) == true)
return 0;
return -EBUSY;
}
static int nor_winbond_lock(struct nor_flash *nor, unsigned int addr,
unsigned int len)
{
return nor_winbond_blk_lock(addr);
}
static int nor_winbond_unlock(struct nor_flash *nor, unsigned int addr,
unsigned int len)
{
return nor_winbond_blk_unlock(addr);
}
static bool nor_winbond_islock(struct nor_flash *nor, unsigned int addr,
unsigned int len)
{
return nor_winbond_blk_islock(addr);
}
static struct nor_factory nor_winbond = {
.factory = FACTORY_WINBOND,
.idt = idt_winbond,
.idt_cnt = sizeof(idt_winbond),
.init = nor_winbond_init,
.deinit = NULL,
.init_lock = nor_winbond_init_lock,
.deinit_lock = nor_winbond_deinit_lock,
.lock = nor_winbond_lock,
.unlock = nor_winbond_unlock,
.islock = nor_winbond_islock,
.set_quad_mode = NULL,
.set_4bytes_addr = NULL,
};
int nor_register_factory_winbond(void)
{
return nor_register_factory(&nor_winbond);
}
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