* (C) Copyright 2009
* Vipin Kumar, ST Microelectronics, vipin.kumar@st.com.
*
- * See file CREDITS for list of people who contributed to this
- * project.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
- * MA 02111-1307 USA
+ * SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
CONFIG_SYS_FLASH_ADDR_BASE;
flash_info_t flash_info[CONFIG_SYS_MAX_FLASH_BANKS];
-#define ST_M25Pxx_ID 0x00002020
-
-static struct flash_dev flash_ids[] = {
- {0x10, 0x10000, 2}, /* 64K Byte */
- {0x11, 0x20000, 4}, /* 128K Byte */
- {0x12, 0x40000, 4}, /* 256K Byte */
- {0x13, 0x80000, 8}, /* 512K Byte */
- {0x14, 0x100000, 16}, /* 1M Byte */
- {0x15, 0x200000, 32}, /* 2M Byte */
- {0x16, 0x400000, 64}, /* 4M Byte */
- {0x17, 0x800000, 128}, /* 8M Byte */
- {0x18, 0x1000000, 64}, /* 16M Byte */
- {0x00,}
+/* data structure to maintain flash ids from different vendors */
+struct flash_device {
+ char *name;
+ u8 erase_cmd;
+ u32 device_id;
+ u32 pagesize;
+ unsigned long sectorsize;
+ unsigned long size_in_bytes;
+};
+
+#define FLASH_ID(n, es, id, psize, ssize, size) \
+{ \
+ .name = n, \
+ .erase_cmd = es, \
+ .device_id = id, \
+ .pagesize = psize, \
+ .sectorsize = ssize, \
+ .size_in_bytes = size \
+}
+
+/*
+ * List of supported flash devices.
+ * Currently the erase_cmd field is not used in this driver.
+ */
+static struct flash_device flash_devices[] = {
+ FLASH_ID("st m25p16" , 0xd8, 0x00152020, 0x100, 0x10000, 0x200000),
+ FLASH_ID("st m25p32" , 0xd8, 0x00162020, 0x100, 0x10000, 0x400000),
+ FLASH_ID("st m25p64" , 0xd8, 0x00172020, 0x100, 0x10000, 0x800000),
+ FLASH_ID("st m25p128" , 0xd8, 0x00182020, 0x100, 0x40000, 0x1000000),
+ FLASH_ID("st m25p05" , 0xd8, 0x00102020, 0x80 , 0x8000 , 0x10000),
+ FLASH_ID("st m25p10" , 0xd8, 0x00112020, 0x80 , 0x8000 , 0x20000),
+ FLASH_ID("st m25p20" , 0xd8, 0x00122020, 0x100, 0x10000, 0x40000),
+ FLASH_ID("st m25p40" , 0xd8, 0x00132020, 0x100, 0x10000, 0x80000),
+ FLASH_ID("st m25p80" , 0xd8, 0x00142020, 0x100, 0x10000, 0x100000),
+ FLASH_ID("st m45pe10" , 0xd8, 0x00114020, 0x100, 0x10000, 0x20000),
+ FLASH_ID("st m45pe20" , 0xd8, 0x00124020, 0x100, 0x10000, 0x40000),
+ FLASH_ID("st m45pe40" , 0xd8, 0x00134020, 0x100, 0x10000, 0x80000),
+ FLASH_ID("st m45pe80" , 0xd8, 0x00144020, 0x100, 0x10000, 0x100000),
+ FLASH_ID("sp s25fl004" , 0xd8, 0x00120201, 0x100, 0x10000, 0x80000),
+ FLASH_ID("sp s25fl008" , 0xd8, 0x00130201, 0x100, 0x10000, 0x100000),
+ FLASH_ID("sp s25fl016" , 0xd8, 0x00140201, 0x100, 0x10000, 0x200000),
+ FLASH_ID("sp s25fl032" , 0xd8, 0x00150201, 0x100, 0x10000, 0x400000),
+ FLASH_ID("sp s25fl064" , 0xd8, 0x00160201, 0x100, 0x10000, 0x800000),
+ FLASH_ID("mac 25l512" , 0xd8, 0x001020C2, 0x010, 0x10000, 0x10000),
+ FLASH_ID("mac 25l1005" , 0xd8, 0x001120C2, 0x010, 0x10000, 0x20000),
+ FLASH_ID("mac 25l2005" , 0xd8, 0x001220C2, 0x010, 0x10000, 0x40000),
+ FLASH_ID("mac 25l4005" , 0xd8, 0x001320C2, 0x010, 0x10000, 0x80000),
+ FLASH_ID("mac 25l4005a" , 0xd8, 0x001320C2, 0x010, 0x10000, 0x80000),
+ FLASH_ID("mac 25l8005" , 0xd8, 0x001420C2, 0x010, 0x10000, 0x100000),
+ FLASH_ID("mac 25l1605" , 0xd8, 0x001520C2, 0x100, 0x10000, 0x200000),
+ FLASH_ID("mac 25l1605a" , 0xd8, 0x001520C2, 0x010, 0x10000, 0x200000),
+ FLASH_ID("mac 25l3205" , 0xd8, 0x001620C2, 0x100, 0x10000, 0x400000),
+ FLASH_ID("mac 25l3205a" , 0xd8, 0x001620C2, 0x100, 0x10000, 0x400000),
+ FLASH_ID("mac 25l6405" , 0xd8, 0x001720C2, 0x100, 0x10000, 0x800000),
+ FLASH_ID("wbd w25q128" , 0xd8, 0x001840EF, 0x100, 0x10000, 0x1000000),
};
/*
*/
static int smi_wait_xfer_finish(int timeout)
{
- do {
+ ulong start = get_timer(0);
+
+ while (get_timer(start) < timeout) {
if (readl(&smicntl->smi_sr) & TFF)
return 0;
- udelay(1000);
- } while (timeout--);
+
+ /* Try after 10 ms */
+ udelay(10);
+ };
return -1;
}
static ulong flash_get_size(ulong base, int banknum)
{
flash_info_t *info = &flash_info[banknum];
- struct flash_dev *dev;
int value;
- unsigned int density;
int i;
value = smi_read_id(info, banknum);
return 0;
}
- density = (value >> 16) & 0xff;
+ /* Matches chip-id to entire list of 'serial-nor flash' ids */
+ for (i = 0; i < ARRAY_SIZE(flash_devices); i++) {
+ if (flash_devices[i].device_id == value) {
+ info->size = flash_devices[i].size_in_bytes;
+ info->flash_id = value;
+ info->start[0] = base;
+ info->sector_count =
+ info->size/flash_devices[i].sectorsize;
- for (i = 0, dev = &flash_ids[0]; dev->density != 0x0;
- i++, dev = &flash_ids[i]) {
- if (dev->density == density) {
- info->size = dev->size;
- info->sector_count = dev->sector_count;
- break;
+ return info->size;
}
}
- if (dev->density == 0x0)
- return 0;
-
- info->flash_id = value & 0xffff;
- info->start[0] = base;
-
- return info->size;
+ return 0;
}
/*
*/
static int smi_read_sr(int bank)
{
- u32 ctrlreg1;
+ u32 ctrlreg1, val;
/* store the CTRL REG1 state */
ctrlreg1 = readl(&smicntl->smi_cr1);
if (smi_wait_xfer_finish(XFER_FINISH_TOUT))
return -1;
+ val = readl(&smicntl->smi_sr);
+
/* Restore the CTRL REG1 state */
writel(ctrlreg1, &smicntl->smi_cr1);
- return readl(&smicntl->smi_sr);
+ return val;
}
/*
static int smi_wait_till_ready(int bank, int timeout)
{
int sr;
+ ulong start = get_timer(0);
/* One chip guarantees max 5 msec wait here after page writes,
but potentially three seconds (!) after page erase. */
- do {
+ while (get_timer(start) < timeout) {
sr = smi_read_sr(bank);
- if (sr < 0)
- continue; /* try until timeout */
- else if (!(sr & WIP_BIT))
+ if ((sr >= 0) && (!(sr & WIP_BIT)))
return 0;
- /* Try again after 1m-sec */
- udelay(1000);
+ /* Try again after 10 usec */
+ udelay(10);
} while (timeout--);
printf("SMI controller is still in wait, timeout=%d\n", timeout);
static int smi_write_enable(int bank)
{
u32 ctrlreg1;
+ u32 start;
int timeout = WMODE_TOUT;
int sr;
/* Restore the CTRL REG1 state */
writel(ctrlreg1, &smicntl->smi_cr1);
- do {
+ start = get_timer(0);
+ while (get_timer(start) < timeout) {
sr = smi_read_sr(bank);
- if (sr < 0)
- break;
- else if (sr & (1 << (bank + WM_SHIFT)))
+ if ((sr >= 0) && (sr & (1 << (bank + WM_SHIFT))))
return 0;
- /* Try again after 1m-sec */
- udelay(1000);
- } while (timeout--);
+ /* Try again after 10 usec */
+ udelay(10);
+ };
return -1;
}
writel(readl(&smicntl->smi_sr) & ~(ERF1 | ERF2), &smicntl->smi_sr);
- if (info->flash_id == ST_M25Pxx_ID) {
- /* Wait until finished previous write command. */
- if (smi_wait_till_ready(bank, CONFIG_SYS_FLASH_ERASE_TOUT))
- return -EBUSY;
+ /* Wait until finished previous write command. */
+ if (smi_wait_till_ready(bank, CONFIG_SYS_FLASH_ERASE_TOUT))
+ return -EBUSY;
- /* Send write enable, before erase commands. */
- if (smi_write_enable(bank))
- return -EIO;
+ /* Send write enable, before erase commands. */
+ if (smi_write_enable(bank))
+ return -EIO;
- /* Put SMI in SW mode */
- writel(readl(&smicntl->smi_cr1) | SW_MODE, &smicntl->smi_cr1);
+ /* Put SMI in SW mode */
+ writel(readl(&smicntl->smi_cr1) | SW_MODE, &smicntl->smi_cr1);
- /* Send Sector Erase command in SW Mode */
- writel(instruction, &smicntl->smi_tr);
- writel((bank << BANKSEL_SHIFT) | SEND | TX_LEN_4,
+ /* Send Sector Erase command in SW Mode */
+ writel(instruction, &smicntl->smi_tr);
+ writel((bank << BANKSEL_SHIFT) | SEND | TX_LEN_4,
&smicntl->smi_cr2);
- if (smi_wait_xfer_finish(XFER_FINISH_TOUT))
- return -EIO;
+ if (smi_wait_xfer_finish(XFER_FINISH_TOUT))
+ return -EIO;
- if (smi_wait_till_ready(bank, CONFIG_SYS_FLASH_ERASE_TOUT))
- return -EBUSY;
+ if (smi_wait_till_ready(bank, CONFIG_SYS_FLASH_ERASE_TOUT))
+ return -EBUSY;
- /* Put SMI in HW mode */
- writel(readl(&smicntl->smi_cr1) & ~SW_MODE,
+ /* Put SMI in HW mode */
+ writel(readl(&smicntl->smi_cr1) & ~SW_MODE,
&smicntl->smi_cr1);
- return 0;
- } else {
- /* Put SMI in HW mode */
- writel(readl(&smicntl->smi_cr1) & ~SW_MODE,
- &smicntl->smi_cr1);
- return -EINVAL;
- }
+ return 0;
}
/*
* smi_write - Write to SMI flash
* @src_addr: source buffer
* @dst_addr: destination buffer
- * @length: length to write in words
+ * @length: length to write in bytes
* @bank: bank base address
*
* Write to SMI flash
static int smi_write(unsigned int *src_addr, unsigned int *dst_addr,
unsigned int length, ulong bank_addr)
{
+ u8 *src_addr8 = (u8 *)src_addr;
+ u8 *dst_addr8 = (u8 *)dst_addr;
int banknum;
+ int i;
switch (bank_addr) {
case SMIBANK0_BASE:
return -EIO;
/* Perform the write command */
- while (length--) {
+ for (i = 0; i < length; i += 4) {
if (((ulong) (dst_addr) % SFLASH_PAGE_SIZE) == 0) {
if (smi_wait_till_ready(banknum,
CONFIG_SYS_FLASH_WRITE_TOUT))
return -EIO;
}
- *dst_addr++ = *src_addr++;
+ if (length < 4) {
+ int k;
+
+ /*
+ * Handle special case, where length < 4 (redundant env)
+ */
+ for (k = 0; k < length; k++)
+ *dst_addr8++ = *src_addr8++;
+ } else {
+ /* Normal 32bit write */
+ *dst_addr++ = *src_addr++;
+ }
if ((readl(&smicntl->smi_sr) & (ERF1 | ERF2)))
return -EIO;
int write_buff(flash_info_t *info, uchar *src, ulong dest_addr, ulong length)
{
return smi_write((unsigned int *)src, (unsigned int *)dest_addr,
- (length + 3) / 4, info->start[0]);
+ length, info->start[0]);
}
/*
puts("missing or unknown FLASH type\n");
return;
}
- printf(" Size: %ld MB in %d Sectors\n",
- info->size >> 20, info->sector_count);
+
+ if (info->size >= 0x100000)
+ printf(" Size: %ld MB in %d Sectors\n",
+ info->size >> 20, info->sector_count);
+ else
+ printf(" Size: %ld KB in %d Sectors\n",
+ info->size >> 10, info->sector_count);
puts(" Sector Start Addresses:");
for (i = 0; i < info->sector_count; ++i) {
int prot = 0;
flash_sect_t sect;
- if (info->flash_id != ST_M25Pxx_ID) {
- puts("Can't erase unknown flash type - aborted\n");
- return 1;
- }
-
if ((s_first < 0) || (s_first > s_last)) {
puts("- no sectors to erase\n");
return 1;
projects / karo-tx-uboot.git / blobdiff