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/* all about fm 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_FM_QE_BIT BIT(1)
#define NOR_FM_WPS_BIT BIT(3)
/* sr1 here actually is sr2 in datasheet */
#define NOR_FM_CMD_READ_SR1 (0x35)
#define NOR_FM_CMD_BLK_LOCK_STATUS (0x3D)
#define NOR_FM_CMD_BLK_LOCK (0x36)
#define NOR_FM_CMD_BLK_UNLOCK (0x39)
static struct nor_info idt_fm[] =
{
{
.model = "fm25w128",
.id = {0xa1, 0x28, 0x18},
.total_size = SZ_16M,
.flag = SUPPORT_GENERAL | SUPPORT_INDIVIDUAL_PROTECT,
},
{
.model = "fm25q128a",
.id = {0xa1, 0x40, 0x18},
.total_size = SZ_16M,
.flag = SUPPORT_GENERAL | SUPPORT_INDIVIDUAL_PROTECT,
},
};
static int nor_fm_read_status1(unsigned char *sr1)
{
int ret;
char cmd[1] = {NOR_FM_CMD_READ_SR1};
char reg[2] = {0};
ret = nor_transfer(1, cmd, 1, reg, 2);
if (ret) {
SPINOR_ERR("read fm status1 register fail\n");
return ret;
}
*sr1 = reg[1];
return 0;
}
static int nor_fm_quad_mode(struct nor_flash *unused)
{
int ret;
unsigned char sr[2];
ret = nor_fm_read_status1(&sr[1]);
if (ret)
return ret;
if (sr[1] & NOR_FM_QE_BIT)
return 0;
sr[1] |= NOR_FM_QE_BIT;
ret = nor_read_status(&sr[0]);
if (ret)
return ret;
ret = nor_write_status(sr, 2);
if (ret)
return ret;
ret = nor_fm_read_status1(&sr[1]);
if (ret)
return ret;
if (!(sr[1] & NOR_FM_QE_BIT)) {
SPINOR_ERR("set fm QE failed (0x%x)\n", sr[1]);
return -EINVAL;
}
return 0;
}
static int nor_fm_set_wps(int wps)
{
int ret;
unsigned char sr[2];
unsigned char sr1;
ret = nor_fm_read_status1(&sr1);
if (ret)
return ret;
if (wps)
sr[1] = sr1 | NOR_FM_WPS_BIT;
else
sr[1] = sr1 & ~NOR_FM_WPS_BIT;
if (sr1 == sr[1])
return 0;
ret = nor_read_status(&sr[0]);
if (ret)
return ret;
ret = nor_write_status(sr, 2);
if (ret)
return ret;
ret = nor_fm_read_status1(&sr1);
if (ret)
return ret;
if ((sr1 & NOR_FM_WPS_BIT) != (sr[1] & NOR_FM_WPS_BIT)) {
SPINOR_ERR("set fm wps %d failed (0x%x)\n", wps, sr1);
return -EINVAL;
}
return 0;
}
static int nor_fm_init_lock(struct nor_flash *nor)
{
return nor_fm_set_wps(true);
}
static void nor_fm_deinit_lock(struct nor_flash *nor)
{
nor_fm_set_wps(false);
}
static bool nor_fm_blk_islock(unsigned int addr)
{
int ret;
unsigned char tbuf[4], st;
tbuf[0] = NOR_FM_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_fm_blk_unlock(unsigned int addr)
{
int ret;
unsigned char tbuf[4];
ret = nor_write_enable();
if (ret)
return ret;
tbuf[0] = NOR_FM_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_fm_blk_islock(addr) == true)
return -EBUSY;
return 0;
}
static int nor_fm_blk_lock(unsigned int addr)
{
int ret;
unsigned char tbuf[4];
ret = nor_write_enable();
if (ret)
return ret;
tbuf[0] = NOR_FM_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_fm_blk_islock(addr) == true)
return 0;
return -EBUSY;
}
static int nor_fm_lock(struct nor_flash *nor, unsigned int addr,
unsigned int len)
{
return nor_fm_blk_lock(addr);
}
static int nor_fm_unlock(struct nor_flash *nor, unsigned int addr,
unsigned int len)
{
return nor_fm_blk_unlock(addr);
}
static bool nor_fm_islock(struct nor_flash *nor, unsigned int addr,
unsigned int len)
{
return nor_fm_blk_islock(addr);
}
static struct nor_factory nor_fm = {
.factory = FACTORY_FM,
.idt = idt_fm,
.idt_cnt = sizeof(idt_fm),
.init = NULL,
.deinit = NULL,
.init_lock = nor_fm_init_lock,
.deinit_lock = nor_fm_deinit_lock,
.lock = nor_fm_lock,
.unlock = nor_fm_unlock,
.islock = nor_fm_islock,
.set_quad_mode = nor_fm_quad_mode,
.set_4bytes_addr = NULL,
};
int nor_register_factory_fm(void)
{
return nor_register_factory(&nor_fm);
}
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