#include <spi.h>
#include <spi_flash.h>
#include <linux/log2.h>
+#include <dma.h>
#include "sf_internal.h"
cmd[3] = addr >> 0;
}
-/* Read commands array */
-static u8 spi_read_cmds_array[] = {
- CMD_READ_ARRAY_SLOW,
- CMD_READ_ARRAY_FAST,
- CMD_READ_DUAL_OUTPUT_FAST,
- CMD_READ_DUAL_IO_FAST,
- CMD_READ_QUAD_OUTPUT_FAST,
- CMD_READ_QUAD_IO_FAST,
-};
-
static int read_sr(struct spi_flash *flash, u8 *rs)
{
int ret;
}
#endif
+#ifdef CONFIG_SPI_FLASH_STMICRO
+static int read_evcr(struct spi_flash *flash, u8 *evcr)
+{
+ int ret;
+ const u8 cmd = CMD_READ_EVCR;
+
+ ret = spi_flash_read_common(flash, &cmd, 1, evcr, 1);
+ if (ret < 0) {
+ debug("SF: error reading EVCR\n");
+ return ret;
+ }
+
+ return 0;
+}
+
+static int write_evcr(struct spi_flash *flash, u8 evcr)
+{
+ u8 cmd;
+ int ret;
+
+ cmd = CMD_WRITE_EVCR;
+ ret = spi_flash_write_common(flash, &cmd, 1, &evcr, 1);
+ if (ret < 0) {
+ debug("SF: error while writing EVCR register\n");
+ return ret;
+ }
+
+ return 0;
+}
+#endif
+
#ifdef CONFIG_SPI_FLASH_BAR
static int spi_flash_write_bar(struct spi_flash *flash, u32 offset)
{
int ret;
if (flash->size <= SPI_FLASH_16MB_BOUN)
- goto bank_end;
+ goto bar_end;
switch (idcode0) {
case SPI_FLASH_CFI_MFR_SPANSION:
return ret;
}
-bank_end:
+bar_end:
flash->bank_curr = curr_bank;
return 0;
}
return ret;
}
+/*
+ * TODO: remove the weak after all the other spi_flash_copy_mmap
+ * implementations removed from drivers
+ */
void __weak spi_flash_copy_mmap(void *data, void *offset, size_t len)
{
+#ifdef CONFIG_DMA
+ if (!dma_memcpy(data, offset, len))
+ return;
+#endif
memcpy(data, offset, len);
}
#ifdef CONFIG_SPI_FLASH_MACRONIX
-static int spi_flash_set_qeb_mxic(struct spi_flash *flash)
+static int macronix_quad_enable(struct spi_flash *flash)
{
u8 qeb_status;
int ret;
if (ret < 0)
return ret;
- if (qeb_status & STATUS_QEB_MXIC) {
- debug("SF: mxic: QEB is already set\n");
- } else {
- ret = write_sr(flash, STATUS_QEB_MXIC);
- if (ret < 0)
- return ret;
+ if (qeb_status & STATUS_QEB_MXIC)
+ return 0;
+
+ ret = write_sr(flash, qeb_status | STATUS_QEB_MXIC);
+ if (ret < 0)
+ return ret;
+
+ /* read SR and check it */
+ ret = read_sr(flash, &qeb_status);
+ if (!(ret >= 0 && (qeb_status & STATUS_QEB_MXIC))) {
+ printf("SF: Macronix SR Quad bit not clear\n");
+ return -EINVAL;
}
return ret;
#endif
#if defined(CONFIG_SPI_FLASH_SPANSION) || defined(CONFIG_SPI_FLASH_WINBOND)
-static int spi_flash_set_qeb_winspan(struct spi_flash *flash)
+static int spansion_quad_enable(struct spi_flash *flash)
{
u8 qeb_status;
int ret;
if (ret < 0)
return ret;
- if (qeb_status & STATUS_QEB_WINSPAN) {
- debug("SF: winspan: QEB is already set\n");
- } else {
- ret = write_cr(flash, STATUS_QEB_WINSPAN);
- if (ret < 0)
- return ret;
+ if (qeb_status & STATUS_QEB_WINSPAN)
+ return 0;
+
+ ret = write_cr(flash, qeb_status | STATUS_QEB_WINSPAN);
+ if (ret < 0)
+ return ret;
+
+ /* read CR and check it */
+ ret = read_cr(flash, &qeb_status);
+ if (!(ret >= 0 && (qeb_status & STATUS_QEB_WINSPAN))) {
+ printf("SF: Spansion CR Quad bit not clear\n");
+ return -EINVAL;
}
return ret;
}
#endif
-static int spi_flash_set_qeb(struct spi_flash *flash, u8 idcode0)
+#ifdef CONFIG_SPI_FLASH_STMICRO
+static int micron_quad_enable(struct spi_flash *flash)
+{
+ u8 qeb_status;
+ int ret;
+
+ ret = read_evcr(flash, &qeb_status);
+ if (ret < 0)
+ return ret;
+
+ if (!(qeb_status & STATUS_QEB_MICRON))
+ return 0;
+
+ ret = write_evcr(flash, qeb_status & ~STATUS_QEB_MICRON);
+ if (ret < 0)
+ return ret;
+
+ /* read EVCR and check it */
+ ret = read_evcr(flash, &qeb_status);
+ if (!(ret >= 0 && !(qeb_status & STATUS_QEB_MICRON))) {
+ printf("SF: Micron EVCR Quad bit not clear\n");
+ return -EINVAL;
+ }
+
+ return ret;
+}
+#endif
+
+static int set_quad_mode(struct spi_flash *flash, u8 idcode0)
{
switch (idcode0) {
#ifdef CONFIG_SPI_FLASH_MACRONIX
case SPI_FLASH_CFI_MFR_MACRONIX:
- return spi_flash_set_qeb_mxic(flash);
+ return macronix_quad_enable(flash);
#endif
#if defined(CONFIG_SPI_FLASH_SPANSION) || defined(CONFIG_SPI_FLASH_WINBOND)
case SPI_FLASH_CFI_MFR_SPANSION:
case SPI_FLASH_CFI_MFR_WINBOND:
- return spi_flash_set_qeb_winspan(flash);
+ return spansion_quad_enable(flash);
#endif
#ifdef CONFIG_SPI_FLASH_STMICRO
case SPI_FLASH_CFI_MFR_STMICRO:
- debug("SF: QEB is volatile for %02x flash\n", idcode0);
- return 0;
+ return micron_quad_enable(flash);
#endif
default:
printf("SF: Need set QEB func for %02x flash\n", idcode0);
#if CONFIG_IS_ENABLED(OF_CONTROL)
int spi_flash_decode_fdt(const void *blob, struct spi_flash *flash)
{
+#ifdef CONFIG_DM_SPI_FLASH
fdt_addr_t addr;
fdt_size_t size;
- int node;
-
- /* If there is no node, do nothing */
- node = fdtdec_next_compatible(blob, 0, COMPAT_GENERIC_SPI_FLASH);
- if (node < 0)
- return 0;
+ int node = flash->dev->of_offset;
addr = fdtdec_get_addr_size(blob, node, "memory-map", &size);
if (addr == FDT_ADDR_T_NONE) {
return -1;
}
flash->memory_map = map_sysmem(addr, size);
+#endif
return 0;
}
struct spi_slave *spi = flash->spi;
const struct spi_flash_params *params;
u16 jedec, ext_jedec;
- u8 idcode[5];
- u8 cmd;
+ u8 cmd, idcode[5];
int ret;
+ static u8 spi_read_cmds_array[] = {
+ CMD_READ_ARRAY_SLOW,
+ CMD_READ_ARRAY_FAST,
+ CMD_READ_DUAL_OUTPUT_FAST,
+ CMD_READ_QUAD_OUTPUT_FAST,
+ CMD_READ_DUAL_IO_FAST,
+ CMD_READ_QUAD_IO_FAST };
/* Read the ID codes */
ret = spi_flash_cmd(spi, CMD_READ_ID, idcode, sizeof(idcode));
flash->write = spi_flash_cmd_write_ops;
#if defined(CONFIG_SPI_FLASH_SST)
if (flash->flags & SNOR_F_SST_WR) {
- if (spi->mode & SPI_TX_BP)
+ if (spi->mode & SPI_TX_BYTE)
flash->write = sst_write_bp;
else
flash->write = sst_write_wp;
flash->sector_size = flash->erase_size;
/* Look for the fastest read cmd */
- cmd = fls(params->e_rd_cmd & spi->op_mode_rx);
+ cmd = fls(params->e_rd_cmd & spi->mode_rx);
if (cmd) {
cmd = spi_read_cmds_array[cmd - 1];
flash->read_cmd = cmd;
}
/* Not require to look for fastest only two write cmds yet */
- if (params->flags & WR_QPP && spi->mode & SPI_TX_QPP)
+ if (params->flags & WR_QPP && spi->mode & SPI_TX_QUAD)
flash->write_cmd = CMD_QUAD_PAGE_PROGRAM;
else
/* Go for default supported write cmd */
if ((flash->read_cmd == CMD_READ_QUAD_OUTPUT_FAST) ||
(flash->read_cmd == CMD_READ_QUAD_IO_FAST) ||
(flash->write_cmd == CMD_QUAD_PAGE_PROGRAM)) {
- ret = spi_flash_set_qeb(flash, idcode[0]);
+ ret = set_quad_mode(flash, idcode[0]);
if (ret) {
debug("SF: Fail to set QEB for %02x\n", idcode[0]);
return -EINVAL;
projects / oweals / u-boot.git / blobdiff