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Merge branch 'master' of git://git.denx.de/u-boot-spi

This commit is contained in:
Tom Rini 2015-12-11 15:07:44 -05:00
parent f7a5f025ba 76de51a6da
commit 5076c64a08
12 changed files with 465 additions and 419 deletions
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6
.mailmap
View File

@ -13,7 +13,11 @@ Andreas Bießmann <andreas.devel@googlemail.com>
Aneesh V <aneesh@ti.com>
Dirk Behme <dirk.behme@googlemail.com>
Fabio Estevam <fabio.estevam@freescale.com>
Jagannadha Sutradharudu Teki <402jagan@gmail.com>
Jagan Teki <402jagan@gmail.com>
Jagan Teki <jaganna@gmail.com>
Jagan Teki <jaganna@xilinx.com>
Jagan Teki <jagannadh.teki@gmail.com>
Jagan Teki <jagannadha.sutradharudu-teki@xilinx.com>
Markus Klotzbuecher <mk@denx.de>
Prabhakar Kushwaha <prabhakar@freescale.com>
Rajeshwari Shinde <rajeshwari.s@samsung.com>

30
board/freescale/mx7dsabresd/mx7dsabresd.c
View File

@ -44,6 +44,9 @@ DECLARE_GLOBAL_DATA_PTR;
#define LCD_PAD_CTRL (PAD_CTL_HYS | PAD_CTL_PUS_PU100KOHM | \
PAD_CTL_DSE_3P3V_49OHM)
#define QSPI_PAD_CTRL \
(PAD_CTL_DSE_3P3V_49OHM | PAD_CTL_PUE | PAD_CTL_PUS_PU47KOHM)
#ifdef CONFIG_SYS_I2C_MXC
#define PC MUX_PAD_CTRL(I2C_PAD_CTRL)
/* I2C1 for PMIC */
@ -455,6 +458,29 @@ int board_phy_config(struct phy_device *phydev)
}
#endif
#ifdef CONFIG_FSL_QSPI
static iomux_v3_cfg_t const quadspi_pads[] = {
MX7D_PAD_EPDC_DATA00__QSPI_A_DATA0 | MUX_PAD_CTRL(QSPI_PAD_CTRL),
MX7D_PAD_EPDC_DATA01__QSPI_A_DATA1 | MUX_PAD_CTRL(QSPI_PAD_CTRL),
MX7D_PAD_EPDC_DATA02__QSPI_A_DATA2 | MUX_PAD_CTRL(QSPI_PAD_CTRL),
MX7D_PAD_EPDC_DATA03__QSPI_A_DATA3 | MUX_PAD_CTRL(QSPI_PAD_CTRL),
MX7D_PAD_EPDC_DATA05__QSPI_A_SCLK | MUX_PAD_CTRL(QSPI_PAD_CTRL),
MX7D_PAD_EPDC_DATA06__QSPI_A_SS0_B | MUX_PAD_CTRL(QSPI_PAD_CTRL),
};
int board_qspi_init(void)
{
/* Set the iomux */
imx_iomux_v3_setup_multiple_pads(quadspi_pads,
ARRAY_SIZE(quadspi_pads));
/* Set the clock */
set_clk_qspi();
return 0;
}
#endif
int board_early_init_f(void)
{
setup_iomux_uart();
@ -481,6 +507,10 @@ int board_init(void)
setup_lcd();
#endif
#ifdef CONFIG_FSL_QSPI
board_qspi_init();
#endif
return 0;
}

6
drivers/mtd/spi/Makefile
View File

@ -12,11 +12,7 @@ obj-$(CONFIG_SPL_SPI_LOAD) += spi_spl_load.o
obj-$(CONFIG_SPL_SPI_BOOT) += fsl_espi_spl.o
endif
#ifndef CONFIG_DM_SPI
obj-$(CONFIG_SPI_FLASH) += sf_probe.o
#endif
obj-$(CONFIG_CMD_SF) += sf.o
obj-$(CONFIG_SPI_FLASH) += sf_ops.o sf_params.o
obj-$(CONFIG_SPI_FLASH) += sf_probe.o spi_flash.o sf_params.o sf.o
obj-$(CONFIG_SPI_FLASH_DATAFLASH) += sf_dataflash.o
obj-$(CONFIG_SPI_FLASH_MTD) += sf_mtd.o
obj-$(CONFIG_SPI_FLASH_SANDBOX) += sandbox.o

38
drivers/mtd/spi/sf_internal.h
View File

@ -44,13 +44,10 @@ enum {
#endif
SECT_32K = 1 << 1,
E_FSR = 1 << 2,
SST_BP = 1 << 3,
SST_WP = 1 << 4,
WR_QPP = 1 << 5,
SST_WR = 1 << 3,
WR_QPP = 1 << 4,
};
#define SST_WR (SST_BP | SST_WP)
enum spi_nor_option_flags {
SNOR_F_SST_WR = (1 << 0),
SNOR_F_USE_FSR = (1 << 1),
@ -66,6 +63,7 @@ enum spi_nor_option_flags {
#define SPI_FLASH_CFI_MFR_MACRONIX 0xc2
#define SPI_FLASH_CFI_MFR_SST 0xbf
#define SPI_FLASH_CFI_MFR_WINBOND 0xef
#define SPI_FLASH_CFI_MFR_ATMEL 0x1f
/* Erase commands */
#define CMD_ERASE_4K 0x20
@ -171,12 +169,6 @@ int spi_flash_cmd_write(struct spi_slave *spi, const u8 *cmd, size_t cmd_len,
/* Flash erase(sectors) operation, support all possible erase commands */
int spi_flash_cmd_erase_ops(struct spi_flash *flash, u32 offset, size_t len);
/* Read the status register */
int spi_flash_cmd_read_status(struct spi_flash *flash, u8 *rs);
/* Program the status register */
int spi_flash_cmd_write_status(struct spi_flash *flash, u8 ws);
/* Lock stmicro spi flash region */
int stm_lock(struct spi_flash *flash, u32 ofs, size_t len);
@ -186,12 +178,6 @@ int stm_unlock(struct spi_flash *flash, u32 ofs, size_t len);
/* Check if a stmicro spi flash region is completely locked */
int stm_is_locked(struct spi_flash *flash, u32 ofs, size_t len);
/* Read the config register */
int spi_flash_cmd_read_config(struct spi_flash *flash, u8 *rc);
/* Program the config register */
int spi_flash_cmd_write_config(struct spi_flash *flash, u8 wc);
/* Enable writing on the SPI flash */
static inline int spi_flash_cmd_write_enable(struct spi_flash *flash)
{
@ -204,12 +190,6 @@ static inline int spi_flash_cmd_write_disable(struct spi_flash *flash)
return spi_flash_cmd(flash->spi, CMD_WRITE_DISABLE, NULL, 0);
}
/*
* Send the read status command to the device and wait for the wip
* (write-in-progress) bit to clear itself.
*/
int spi_flash_cmd_wait_ready(struct spi_flash *flash, unsigned long timeout);
/*
* Used for spi_flash write operation
* - SPI claim
@ -245,4 +225,16 @@ int spi_flash_mtd_register(struct spi_flash *flash);
void spi_flash_mtd_unregister(void);
#endif
/**
* spi_flash_scan - scan the SPI FLASH
* @flash: the spi flash structure
*
* The drivers can use this fuction to scan the SPI FLASH.
* In the scanning, it will try to get all the necessary information to
* fill the spi_flash{}.
*
* Return: 0 for success, others for failure.
*/
int spi_flash_scan(struct spi_flash *flash);
#endif /* _SF_INTERNAL_H_ */

373
drivers/mtd/spi/sf_probe.c
View File

@ -11,327 +11,21 @@
#include <common.h>
#include <dm.h>
#include <errno.h>
#include <fdtdec.h>
#include <malloc.h>
#include <mapmem.h>
#include <spi.h>
#include <spi_flash.h>
#include <asm/io.h>
#include "sf_internal.h"
DECLARE_GLOBAL_DATA_PTR;
/* 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,
};
#ifdef CONFIG_SPI_FLASH_MACRONIX
static int spi_flash_set_qeb_mxic(struct spi_flash *flash)
{
u8 qeb_status;
int ret;
ret = spi_flash_cmd_read_status(flash, &qeb_status);
if (ret < 0)
return ret;
if (qeb_status & STATUS_QEB_MXIC) {
debug("SF: mxic: QEB is already set\n");
} else {
ret = spi_flash_cmd_write_status(flash, STATUS_QEB_MXIC);
if (ret < 0)
return ret;
}
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)
{
u8 qeb_status;
int ret;
ret = spi_flash_cmd_read_config(flash, &qeb_status);
if (ret < 0)
return ret;
if (qeb_status & STATUS_QEB_WINSPAN) {
debug("SF: winspan: QEB is already set\n");
} else {
ret = spi_flash_cmd_write_config(flash, STATUS_QEB_WINSPAN);
if (ret < 0)
return ret;
}
return ret;
}
#endif
static int spi_flash_set_qeb(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);
#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);
#endif
#ifdef CONFIG_SPI_FLASH_STMICRO
case SPI_FLASH_CFI_MFR_STMICRO:
debug("SF: QEB is volatile for %02x flash\n", idcode0);
return 0;
#endif
default:
printf("SF: Need set QEB func for %02x flash\n", idcode0);
return -1;
}
}
#ifdef CONFIG_SPI_FLASH_BAR
static int spi_flash_read_bank(struct spi_flash *flash, u8 idcode0)
{
u8 curr_bank = 0;
int ret;
if (flash->size <= SPI_FLASH_16MB_BOUN)
goto bank_end;
switch (idcode0) {
case SPI_FLASH_CFI_MFR_SPANSION:
flash->bank_read_cmd = CMD_BANKADDR_BRRD;
flash->bank_write_cmd = CMD_BANKADDR_BRWR;
default:
flash->bank_read_cmd = CMD_EXTNADDR_RDEAR;
flash->bank_write_cmd = CMD_EXTNADDR_WREAR;
}
ret = spi_flash_read_common(flash, &flash->bank_read_cmd, 1,
&curr_bank, 1);
if (ret) {
debug("SF: fail to read bank addr register\n");
return ret;
}
bank_end:
flash->bank_curr = curr_bank;
return 0;
}
#endif
static int spi_flash_validate_params(struct spi_slave *spi, u8 *idcode,
struct spi_flash *flash)
{
const struct spi_flash_params *params;
u8 cmd;
u16 jedec = idcode[1] << 8 | idcode[2];
u16 ext_jedec = idcode[3] << 8 | idcode[4];
/* Validate params from spi_flash_params table */
params = spi_flash_params_table;
for (; params->name != NULL; params++) {
if ((params->jedec >> 16) == idcode[0]) {
if ((params->jedec & 0xFFFF) == jedec) {
if (params->ext_jedec == 0)
break;
else if (params->ext_jedec == ext_jedec)
break;
}
}
}
if (!params->name) {
printf("SF: Unsupported flash IDs: ");
printf("manuf %02x, jedec %04x, ext_jedec %04x\n",
idcode[0], jedec, ext_jedec);
return -EPROTONOSUPPORT;
}
/* Assign spi data */
flash->spi = spi;
flash->name = params->name;
flash->memory_map = spi->memory_map;
flash->dual_flash = flash->spi->option;
/* Assign spi flash flags */
if (params->flags & SST_WR)
flash->flags |= SNOR_F_SST_WR;
/* Assign spi_flash ops */
#ifndef CONFIG_DM_SPI_FLASH
flash->write = spi_flash_cmd_write_ops;
#if defined(CONFIG_SPI_FLASH_SST)
if (flash->flags & SNOR_F_SST_WR) {
if (flash->spi->op_mode_tx & SPI_OPM_TX_BP)
flash->write = sst_write_bp;
else
flash->write = sst_write_wp;
}
#endif
flash->erase = spi_flash_cmd_erase_ops;
flash->read = spi_flash_cmd_read_ops;
#endif
/* lock hooks are flash specific - assign them based on idcode0 */
switch (idcode[0]) {
#if defined(CONFIG_SPI_FLASH_STMICRO) || defined(CONFIG_SPI_FLASH_SST)
case SPI_FLASH_CFI_MFR_STMICRO:
case SPI_FLASH_CFI_MFR_SST:
flash->flash_lock = stm_lock;
flash->flash_unlock = stm_unlock;
flash->flash_is_locked = stm_is_locked;
#endif
break;
default:
debug("SF: Lock ops not supported for %02x flash\n", idcode[0]);
}
/* Compute the flash size */
flash->shift = (flash->dual_flash & SF_DUAL_PARALLEL_FLASH) ? 1 : 0;
/*
* The Spansion S25FL032P and S25FL064P have 256b pages, yet use the
* 0x4d00 Extended JEDEC code. The rest of the Spansion flashes with
* the 0x4d00 Extended JEDEC code have 512b pages. All of the others
* have 256b pages.
*/
if (ext_jedec == 0x4d00) {
if ((jedec == 0x0215) || (jedec == 0x216))
flash->page_size = 256;
else
flash->page_size = 512;
} else {
flash->page_size = 256;
}
flash->page_size <<= flash->shift;
flash->sector_size = params->sector_size << flash->shift;
flash->size = flash->sector_size * params->nr_sectors << flash->shift;
#ifdef CONFIG_SF_DUAL_FLASH
if (flash->dual_flash & SF_DUAL_STACKED_FLASH)
flash->size <<= 1;
#endif
/* Compute erase sector and command */
if (params->flags & SECT_4K) {
flash->erase_cmd = CMD_ERASE_4K;
flash->erase_size = 4096 << flash->shift;
} else if (params->flags & SECT_32K) {
flash->erase_cmd = CMD_ERASE_32K;
flash->erase_size = 32768 << flash->shift;
} else {
flash->erase_cmd = CMD_ERASE_64K;
flash->erase_size = flash->sector_size;
}
/* Now erase size becomes valid sector size */
flash->sector_size = flash->erase_size;
/* Look for the fastest read cmd */
cmd = fls(params->e_rd_cmd & flash->spi->op_mode_rx);
if (cmd) {
cmd = spi_read_cmds_array[cmd - 1];
flash->read_cmd = cmd;
} else {
/* Go for default supported read cmd */
flash->read_cmd = CMD_READ_ARRAY_FAST;
}
/* Not require to look for fastest only two write cmds yet */
if (params->flags & WR_QPP && flash->spi->op_mode_tx & SPI_OPM_TX_QPP)
flash->write_cmd = CMD_QUAD_PAGE_PROGRAM;
else
/* Go for default supported write cmd */
flash->write_cmd = CMD_PAGE_PROGRAM;
/* Read dummy_byte: dummy byte is determined based on the
* dummy cycles of a particular command.
* Fast commands - dummy_byte = dummy_cycles/8
* I/O commands- dummy_byte = (dummy_cycles * no.of lines)/8
* For I/O commands except cmd[0] everything goes on no.of lines
* based on particular command but incase of fast commands except
* data all go on single line irrespective of command.
*/
switch (flash->read_cmd) {
case CMD_READ_QUAD_IO_FAST:
flash->dummy_byte = 2;
break;
case CMD_READ_ARRAY_SLOW:
flash->dummy_byte = 0;
break;
default:
flash->dummy_byte = 1;
}
#ifdef CONFIG_SPI_FLASH_STMICRO
if (params->flags & E_FSR)
flash->flags |= SNOR_F_USE_FSR;
#endif
/* Configure the BAR - discover bank cmds and read current bank */
#ifdef CONFIG_SPI_FLASH_BAR
int ret = spi_flash_read_bank(flash, idcode[0]);
if (ret < 0)
return ret;
#endif
/* Flash powers up read-only, so clear BP# bits */
#if defined(CONFIG_SPI_FLASH_ATMEL) || \
defined(CONFIG_SPI_FLASH_MACRONIX) || \
defined(CONFIG_SPI_FLASH_SST)
spi_flash_cmd_write_status(flash, 0);
#endif
return 0;
}
#if CONFIG_IS_ENABLED(OF_CONTROL)
int spi_flash_decode_fdt(const void *blob, struct spi_flash *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;
addr = fdtdec_get_addr_size(blob, node, "memory-map", &size);
if (addr == FDT_ADDR_T_NONE) {
debug("%s: Cannot decode address\n", __func__);
return 0;
}
if (flash->size != size) {
debug("%s: Memory map must cover entire device\n", __func__);
return -1;
}
flash->memory_map = map_sysmem(addr, size);
return 0;
}
#endif /* CONFIG_IS_ENABLED(OF_CONTROL) */
/**
* spi_flash_probe_slave() - Probe for a SPI flash device on a bus
*
* @spi: Bus to probe
* @flashp: Pointer to place to put flash info, which may be NULL if the
* space should be allocated
*/
int spi_flash_probe_slave(struct spi_slave *spi, struct spi_flash *flash)
static int spi_flash_probe_slave(struct spi_flash *flash)
{
u8 idcode[5];
struct spi_slave *spi = flash->spi;
int ret;
/* Setup spi_slave */
@ -347,59 +41,12 @@ int spi_flash_probe_slave(struct spi_slave *spi, struct spi_flash *flash)
return ret;
}
/* Read the ID codes */
ret = spi_flash_cmd(spi, CMD_READ_ID, idcode, sizeof(idcode));
ret = spi_flash_scan(flash);
if (ret) {
printf("SF: Failed to get idcodes\n");
goto err_read_id;
}
#ifdef DEBUG
printf("SF: Got idcodes\n");
print_buffer(0, idcode, 1, sizeof(idcode), 0);
#endif
if (spi_flash_validate_params(spi, idcode, flash)) {
ret = -EINVAL;
goto err_read_id;
}
/* Set the quad enable bit - only for quad commands */
if ((flash->read_cmd == CMD_READ_QUAD_OUTPUT_FAST) ||
(flash->read_cmd == CMD_READ_QUAD_IO_FAST) ||
(flash->write_cmd == CMD_QUAD_PAGE_PROGRAM)) {
if (spi_flash_set_qeb(flash, idcode[0])) {
debug("SF: Fail to set QEB for %02x\n", idcode[0]);
ret = -EINVAL;
goto err_read_id;
}
}
#if CONFIG_IS_ENABLED(OF_CONTROL)
if (spi_flash_decode_fdt(gd->fdt_blob, flash)) {
debug("SF: FDT decode error\n");
ret = -EINVAL;
goto err_read_id;
}
#endif
#ifndef CONFIG_SPL_BUILD
printf("SF: Detected %s with page size ", flash->name);
print_size(flash->page_size, ", erase size ");
print_size(flash->erase_size, ", total ");
print_size(flash->size, "");
if (flash->memory_map)
printf(", mapped at %p", flash->memory_map);
puts("\n");
#endif
#ifndef CONFIG_SPI_FLASH_BAR
if (((flash->dual_flash == SF_SINGLE_FLASH) &&
(flash->size > SPI_FLASH_16MB_BOUN)) ||
((flash->dual_flash > SF_SINGLE_FLASH) &&
(flash->size > SPI_FLASH_16MB_BOUN << 1))) {
puts("SF: Warning - Only lower 16MiB accessible,");
puts(" Full access #define CONFIG_SPI_FLASH_BAR\n");
}
#endif
#ifdef CONFIG_SPI_FLASH_MTD
ret = spi_flash_mtd_register(flash);
#endif
@ -410,7 +57,7 @@ err_read_id:
}
#ifndef CONFIG_DM_SPI_FLASH
struct spi_flash *spi_flash_probe_tail(struct spi_slave *bus)
static struct spi_flash *spi_flash_probe_tail(struct spi_slave *bus)
{
struct spi_flash *flash;
@ -421,7 +68,8 @@ struct spi_flash *spi_flash_probe_tail(struct spi_slave *bus)
return NULL;
}
if (spi_flash_probe_slave(bus, flash)) {
flash->spi = bus;
if (spi_flash_probe_slave(flash)) {
spi_free_slave(bus);
free(flash);
return NULL;
@ -473,7 +121,7 @@ static int spi_flash_std_read(struct udevice *dev, u32 offset, size_t len,
return spi_flash_cmd_read_ops(flash, offset, len, buf);
}
int spi_flash_std_write(struct udevice *dev, u32 offset, size_t len,
static int spi_flash_std_write(struct udevice *dev, u32 offset, size_t len,
const void *buf)
{
struct spi_flash *flash = dev_get_uclass_priv(dev);
@ -490,14 +138,14 @@ int spi_flash_std_write(struct udevice *dev, u32 offset, size_t len,
return spi_flash_cmd_write_ops(flash, offset, len, buf);
}
int spi_flash_std_erase(struct udevice *dev, u32 offset, size_t len)
static int spi_flash_std_erase(struct udevice *dev, u32 offset, size_t len)
{
struct spi_flash *flash = dev_get_uclass_priv(dev);
return spi_flash_cmd_erase_ops(flash, offset, len);
}
int spi_flash_std_probe(struct udevice *dev)
static int spi_flash_std_probe(struct udevice *dev)
{
struct spi_slave *slave = dev_get_parent_priv(dev);
struct dm_spi_slave_platdata *plat = dev_get_parent_platdata(dev);
@ -505,8 +153,9 @@ int spi_flash_std_probe(struct udevice *dev)
flash = dev_get_uclass_priv(dev);
flash->dev = dev;
flash->spi = slave;
debug("%s: slave=%p, cs=%d\n", __func__, slave, plat->cs);
return spi_flash_probe_slave(slave, flash);
return spi_flash_probe_slave(flash);
}
static const struct dm_spi_flash_ops spi_flash_std_ops = {

406
drivers/mtd/spi/sf_ops.c → drivers/mtd/spi/spi_flash.c
View File

@ -1,9 +1,10 @@
/*
* SPI flash operations
* SPI Flash Core
*
* Copyright (C) 2008 Atmel Corporation
* Copyright (C) 2010 Reinhard Meyer, EMK Elektronik
* Copyright (C) 2015 Jagan Teki <jteki@openedev.com>
* Copyright (C) 2013 Jagannadha Sutradharudu Teki, Xilinx Inc.
* Copyright (C) 2010 Reinhard Meyer, EMK Elektronik
* Copyright (C) 2008 Atmel Corporation
*
* SPDX-License-Identifier: GPL-2.0+
*/
@ -11,14 +12,15 @@
#include <common.h>
#include <errno.h>
#include <malloc.h>
#include <mapmem.h>
#include <spi.h>
#include <spi_flash.h>
#include <watchdog.h>
#include <linux/compiler.h>
#include <linux/log2.h>
#include "sf_internal.h"
DECLARE_GLOBAL_DATA_PTR;
static void spi_flash_addr(u32 addr, u8 *cmd)
{
/* cmd[0] is actual command */
@ -27,7 +29,17 @@ static void spi_flash_addr(u32 addr, u8 *cmd)
cmd[3] = addr >> 0;
}
int spi_flash_cmd_read_status(struct spi_flash *flash, u8 *rs)
/* 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;
u8 cmd;
@ -56,7 +68,7 @@ static int read_fsr(struct spi_flash *flash, u8 *fsr)
return 0;
}
int spi_flash_cmd_write_status(struct spi_flash *flash, u8 ws)
static int write_sr(struct spi_flash *flash, u8 ws)
{
u8 cmd;
int ret;
@ -72,7 +84,7 @@ int spi_flash_cmd_write_status(struct spi_flash *flash, u8 ws)
}
#if defined(CONFIG_SPI_FLASH_SPANSION) || defined(CONFIG_SPI_FLASH_WINBOND)
int spi_flash_cmd_read_config(struct spi_flash *flash, u8 *rc)
static int read_cr(struct spi_flash *flash, u8 *rc)
{
int ret;
u8 cmd;
@ -87,13 +99,13 @@ int spi_flash_cmd_read_config(struct spi_flash *flash, u8 *rc)
return 0;
}
int spi_flash_cmd_write_config(struct spi_flash *flash, u8 wc)
static int write_cr(struct spi_flash *flash, u8 wc)
{
u8 data[2];
u8 cmd;
int ret;
ret = spi_flash_cmd_read_status(flash, &data[0]);
ret = read_sr(flash, &data[0]);
if (ret < 0)
return ret;
@ -110,7 +122,7 @@ int spi_flash_cmd_write_config(struct spi_flash *flash, u8 wc)
#endif
#ifdef CONFIG_SPI_FLASH_BAR
static int spi_flash_write_bank(struct spi_flash *flash, u32 offset)
static int spi_flash_write_bar(struct spi_flash *flash, u32 offset)
{
u8 cmd, bank_sel;
int ret;
@ -130,10 +142,40 @@ bar_end:
flash->bank_curr = bank_sel;
return flash->bank_curr;
}
static int spi_flash_read_bar(struct spi_flash *flash, u8 idcode0)
{
u8 curr_bank = 0;
int ret;
if (flash->size <= SPI_FLASH_16MB_BOUN)
goto bank_end;
switch (idcode0) {
case SPI_FLASH_CFI_MFR_SPANSION:
flash->bank_read_cmd = CMD_BANKADDR_BRRD;
flash->bank_write_cmd = CMD_BANKADDR_BRWR;
break;
default:
flash->bank_read_cmd = CMD_EXTNADDR_RDEAR;
flash->bank_write_cmd = CMD_EXTNADDR_WREAR;
}
ret = spi_flash_read_common(flash, &flash->bank_read_cmd, 1,
&curr_bank, 1);
if (ret) {
debug("SF: fail to read bank addr register\n");
return ret;
}
bank_end:
flash->bank_curr = curr_bank;
return 0;
}
#endif
#ifdef CONFIG_SF_DUAL_FLASH
static void spi_flash_dual_flash(struct spi_flash *flash, u32 *addr)
static void spi_flash_dual(struct spi_flash *flash, u32 *addr)
{
switch (flash->dual_flash) {
case SF_DUAL_STACKED_FLASH:
@ -159,7 +201,7 @@ static int spi_flash_sr_ready(struct spi_flash *flash)
u8 sr;
int ret;
ret = spi_flash_cmd_read_status(flash, &sr);
ret = read_sr(flash, &sr);
if (ret < 0)
return ret;
@ -196,7 +238,8 @@ static int spi_flash_ready(struct spi_flash *flash)
return sr && fsr;
}
int spi_flash_cmd_wait_ready(struct spi_flash *flash, unsigned long timeout)
static int spi_flash_cmd_wait_ready(struct spi_flash *flash,
unsigned long timeout)
{
int timebase, ret;
@ -282,10 +325,10 @@ int spi_flash_cmd_erase_ops(struct spi_flash *flash, u32 offset, size_t len)
#ifdef CONFIG_SF_DUAL_FLASH
if (flash->dual_flash > SF_SINGLE_FLASH)
spi_flash_dual_flash(flash, &erase_addr);
spi_flash_dual(flash, &erase_addr);
#endif
#ifdef CONFIG_SPI_FLASH_BAR
ret = spi_flash_write_bank(flash, erase_addr);
ret = spi_flash_write_bar(flash, erase_addr);
if (ret < 0)
return ret;
#endif
@ -332,10 +375,10 @@ int spi_flash_cmd_write_ops(struct spi_flash *flash, u32 offset,
#ifdef CONFIG_SF_DUAL_FLASH
if (flash->dual_flash > SF_SINGLE_FLASH)
spi_flash_dual_flash(flash, &write_addr);
spi_flash_dual(flash, &write_addr);
#endif
#ifdef CONFIG_SPI_FLASH_BAR
ret = spi_flash_write_bank(flash, write_addr);
ret = spi_flash_write_bar(flash, write_addr);
if (ret < 0)
return ret;
#endif
@ -427,10 +470,10 @@ int spi_flash_cmd_read_ops(struct spi_flash *flash, u32 offset,
#ifdef CONFIG_SF_DUAL_FLASH
if (flash->dual_flash > SF_SINGLE_FLASH)
spi_flash_dual_flash(flash, &read_addr);
spi_flash_dual(flash, &read_addr);
#endif
#ifdef CONFIG_SPI_FLASH_BAR
ret = spi_flash_write_bank(flash, read_addr);
ret = spi_flash_write_bar(flash, read_addr);
if (ret < 0)
return ret;
bank_sel = flash->bank_curr;
@ -628,7 +671,7 @@ int stm_is_locked(struct spi_flash *flash, u32 ofs, size_t len)
int status;
u8 sr;
status = spi_flash_cmd_read_status(flash, &sr);
status = read_sr(flash, &sr);
if (status < 0)
return status;
@ -665,7 +708,7 @@ int stm_lock(struct spi_flash *flash, u32 ofs, size_t len)
u8 shift = ffs(mask) - 1, pow, val;
int ret;
ret = spi_flash_cmd_read_status(flash, &status_old);
ret = read_sr(flash, &status_old);
if (ret < 0)
return ret;
@ -702,7 +745,7 @@ int stm_lock(struct spi_flash *flash, u32 ofs, size_t len)
if ((status_new & mask) <= (status_old & mask))
return -EINVAL;
spi_flash_cmd_write_status(flash, status_new);
write_sr(flash, status_new);
return 0;
}
@ -719,7 +762,7 @@ int stm_unlock(struct spi_flash *flash, u32 ofs, size_t len)
u8 shift = ffs(mask) - 1, pow, val;
int ret;
ret = spi_flash_cmd_read_status(flash, &status_old);
ret = read_sr(flash, &status_old);
if (ret < 0)
return ret;
@ -752,8 +795,321 @@ int stm_unlock(struct spi_flash *flash, u32 ofs, size_t len)
if ((status_new & mask) >= (status_old & mask))
return -EINVAL;
spi_flash_cmd_write_status(flash, status_new);
write_sr(flash, status_new);
return 0;
}
#endif
#ifdef CONFIG_SPI_FLASH_MACRONIX
static int spi_flash_set_qeb_mxic(struct spi_flash *flash)
{
u8 qeb_status;
int ret;
ret = read_sr(flash, &qeb_status);
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;
}
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)
{
u8 qeb_status;
int ret;
ret = read_cr(flash, &qeb_status);
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;
}
return ret;
}
#endif
static int spi_flash_set_qeb(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);
#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);
#endif
#ifdef CONFIG_SPI_FLASH_STMICRO
case SPI_FLASH_CFI_MFR_STMICRO:
debug("SF: QEB is volatile for %02x flash\n", idcode0);
return 0;
#endif
default:
printf("SF: Need set QEB func for %02x flash\n", idcode0);
return -1;
}
}
#if CONFIG_IS_ENABLED(OF_CONTROL)
int spi_flash_decode_fdt(const void *blob, struct spi_flash *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;
addr = fdtdec_get_addr_size(blob, node, "memory-map", &size);
if (addr == FDT_ADDR_T_NONE) {
debug("%s: Cannot decode address\n", __func__);
return 0;
}
if (flash->size != size) {
debug("%s: Memory map must cover entire device\n", __func__);
return -1;
}
flash->memory_map = map_sysmem(addr, size);
return 0;
}
#endif /* CONFIG_IS_ENABLED(OF_CONTROL) */
int spi_flash_scan(struct spi_flash *flash)
{
struct spi_slave *spi = flash->spi;
const struct spi_flash_params *params;
u16 jedec, ext_jedec;
u8 idcode[5];
u8 cmd;
int ret;
/* Read the ID codes */
ret = spi_flash_cmd(spi, CMD_READ_ID, idcode, sizeof(idcode));
if (ret) {
printf("SF: Failed to get idcodes\n");
return -EINVAL;
}
#ifdef DEBUG
printf("SF: Got idcodes\n");
print_buffer(0, idcode, 1, sizeof(idcode), 0);
#endif
jedec = idcode[1] << 8 | idcode[2];
ext_jedec = idcode[3] << 8 | idcode[4];
/* Validate params from spi_flash_params table */
params = spi_flash_params_table;
for (; params->name != NULL; params++) {
if ((params->jedec >> 16) == idcode[0]) {
if ((params->jedec & 0xFFFF) == jedec) {
if (params->ext_jedec == 0)
break;
else if (params->ext_jedec == ext_jedec)
break;
}
}
}
if (!params->name) {
printf("SF: Unsupported flash IDs: ");
printf("manuf %02x, jedec %04x, ext_jedec %04x\n",
idcode[0], jedec, ext_jedec);
return -EPROTONOSUPPORT;
}
/* Flash powers up read-only, so clear BP# bits */
if (idcode[0] == SPI_FLASH_CFI_MFR_ATMEL ||
idcode[0] == SPI_FLASH_CFI_MFR_MACRONIX ||
idcode[0] == SPI_FLASH_CFI_MFR_SST)
write_sr(flash, 0);
/* Assign spi data */
flash->name = params->name;
flash->memory_map = spi->memory_map;
flash->dual_flash = flash->spi->option;
/* Assign spi flash flags */
if (params->flags & SST_WR)
flash->flags |= SNOR_F_SST_WR;
/* Assign spi_flash ops */
#ifndef CONFIG_DM_SPI_FLASH
flash->write = spi_flash_cmd_write_ops;
#if defined(CONFIG_SPI_FLASH_SST)
if (flash->flags & SNOR_F_SST_WR) {
if (flash->spi->op_mode_tx & SPI_OPM_TX_BP)
flash->write = sst_write_bp;
else
flash->write = sst_write_wp;
}
#endif
flash->erase = spi_flash_cmd_erase_ops;
flash->read = spi_flash_cmd_read_ops;
#endif
/* lock hooks are flash specific - assign them based on idcode0 */
switch (idcode[0]) {
#if defined(CONFIG_SPI_FLASH_STMICRO) || defined(CONFIG_SPI_FLASH_SST)
case SPI_FLASH_CFI_MFR_STMICRO:
case SPI_FLASH_CFI_MFR_SST:
flash->flash_lock = stm_lock;
flash->flash_unlock = stm_unlock;
flash->flash_is_locked = stm_is_locked;
#endif
break;
default:
debug("SF: Lock ops not supported for %02x flash\n", idcode[0]);
}
/* Compute the flash size */
flash->shift = (flash->dual_flash & SF_DUAL_PARALLEL_FLASH) ? 1 : 0;
/*
* The Spansion S25FL032P and S25FL064P have 256b pages, yet use the
* 0x4d00 Extended JEDEC code. The rest of the Spansion flashes with
* the 0x4d00 Extended JEDEC code have 512b pages. All of the others
* have 256b pages.
*/
if (ext_jedec == 0x4d00) {
if ((jedec == 0x0215) || (jedec == 0x216))
flash->page_size = 256;
else
flash->page_size = 512;
} else {
flash->page_size = 256;
}
flash->page_size <<= flash->shift;
flash->sector_size = params->sector_size << flash->shift;
flash->size = flash->sector_size * params->nr_sectors << flash->shift;
#ifdef CONFIG_SF_DUAL_FLASH
if (flash->dual_flash & SF_DUAL_STACKED_FLASH)
flash->size <<= 1;
#endif
/* Compute erase sector and command */
if (params->flags & SECT_4K) {
flash->erase_cmd = CMD_ERASE_4K;
flash->erase_size = 4096 << flash->shift;
} else if (params->flags & SECT_32K) {
flash->erase_cmd = CMD_ERASE_32K;
flash->erase_size = 32768 << flash->shift;
} else {
flash->erase_cmd = CMD_ERASE_64K;
flash->erase_size = flash->sector_size;
}
/* Now erase size becomes valid sector size */
flash->sector_size = flash->erase_size;
/* Look for the fastest read cmd */
cmd = fls(params->e_rd_cmd & flash->spi->op_mode_rx);
if (cmd) {
cmd = spi_read_cmds_array[cmd - 1];
flash->read_cmd = cmd;
} else {
/* Go for default supported read cmd */
flash->read_cmd = CMD_READ_ARRAY_FAST;
}
/* Not require to look for fastest only two write cmds yet */
if (params->flags & WR_QPP && flash->spi->op_mode_tx & SPI_OPM_TX_QPP)
flash->write_cmd = CMD_QUAD_PAGE_PROGRAM;
else
/* Go for default supported write cmd */
flash->write_cmd = CMD_PAGE_PROGRAM;
/* Set the quad enable bit - only for quad commands */
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]);
if (ret) {
debug("SF: Fail to set QEB for %02x\n", idcode[0]);
return -EINVAL;
}
}
/* Read dummy_byte: dummy byte is determined based on the
* dummy cycles of a particular command.
* Fast commands - dummy_byte = dummy_cycles/8
* I/O commands- dummy_byte = (dummy_cycles * no.of lines)/8
* For I/O commands except cmd[0] everything goes on no.of lines
* based on particular command but incase of fast commands except
* data all go on single line irrespective of command.
*/
switch (flash->read_cmd) {
case CMD_READ_QUAD_IO_FAST:
flash->dummy_byte = 2;
break;
case CMD_READ_ARRAY_SLOW:
flash->dummy_byte = 0;
break;
default:
flash->dummy_byte = 1;
}
#ifdef CONFIG_SPI_FLASH_STMICRO
if (params->flags & E_FSR)
flash->flags |= SNOR_F_USE_FSR;
#endif
/* Configure the BAR - discover bank cmds and read current bank */
#ifdef CONFIG_SPI_FLASH_BAR
ret = spi_flash_read_bar(flash, idcode[0]);
if (ret < 0)
return ret;
#endif
#if CONFIG_IS_ENABLED(OF_CONTROL)
ret = spi_flash_decode_fdt(gd->fdt_blob, flash);
if (ret) {
debug("SF: FDT decode error\n");
return -EINVAL;
}
#endif
#ifndef CONFIG_SPL_BUILD
printf("SF: Detected %s with page size ", flash->name);
print_size(flash->page_size, ", erase size ");
print_size(flash->erase_size, ", total ");
print_size(flash->size, "");
if (flash->memory_map)
printf(", mapped at %p", flash->memory_map);
puts("\n");
#endif
#ifndef CONFIG_SPI_FLASH_BAR
if (((flash->dual_flash == SF_SINGLE_FLASH) &&
(flash->size > SPI_FLASH_16MB_BOUN)) ||
((flash->dual_flash > SF_SINGLE_FLASH) &&
(flash->size > SPI_FLASH_16MB_BOUN << 1))) {
puts("SF: Warning - Only lower 16MiB accessible,");
puts(" Full access #define CONFIG_SPI_FLASH_BAR\n");
}
#endif
return ret;
}

2
drivers/spi/Kconfig
View File

@ -140,7 +140,7 @@ config XILINX_SPI
config ZYNQ_SPI
bool "Zynq SPI driver"
depends on ARCH_ZYNQ || TARGET_XILINX_ZYNQMP
depends on ARCH_ZYNQ || ARCH_ZYNQMP
help
Enable the Zynq SPI driver. This driver can be used to
access the SPI NOR flash on platforms embedding this Zynq

2
drivers/spi/spi-uclass.c
View File

@ -378,6 +378,8 @@ int spi_slave_ofdata_to_platdata(const void *blob, int node,
mode |= SPI_CPHA;
if (fdtdec_get_bool(blob, node, "spi-cs-high"))
mode |= SPI_CS_HIGH;
if (fdtdec_get_bool(blob, node, "spi-3wire"))
mode |= SPI_3WIRE;
if (fdtdec_get_bool(blob, node, "spi-half-duplex"))
mode |= SPI_PREAMBLE;
plat->mode = mode;

2
drivers/spi/ti_qspi.c
View File

@ -293,7 +293,7 @@ int spi_xfer(struct spi_slave *slave, unsigned int bitlen, const void *dout,
qslave->cmd = 0;
qslave->cmd |= QSPI_WLEN(8);
qslave->cmd |= QSPI_EN_CS(slave->cs);
if (flags & SPI_3WIRE)
if (qslave->mode & SPI_3WIRE)
qslave->cmd |= QSPI_3_PIN;
qslave->cmd |= 0xfff;

3
drivers/spi/xilinx_spi.c
View File

@ -287,7 +287,8 @@ static const struct dm_spi_ops xilinx_spi_ops = {
};
static const struct udevice_id xilinx_spi_ids[] = {
{ .compatible = "xlnx,xilinx-spi" },
{ .compatible = "xlnx,xps-spi-2.00.a" },
{ .compatible = "xlnx,xps-spi-2.00.b" },
{ }
};

1
drivers/spi/zynq_spi.c
View File

@ -313,6 +313,7 @@ static const struct dm_spi_ops zynq_spi_ops = {
static const struct udevice_id zynq_spi_ids[] = {
{ .compatible = "xlnx,zynq-spi-r1p6" },
{ .compatible = "cdns,spi-r1p6" },
{ }
};

15
include/configs/mx7dsabresd.h
View File

@ -236,4 +236,19 @@
#define CONFIG_VIDEO_BMP_LOGO
#endif
#ifdef CONFIG_FSL_QSPI
#define CONFIG_CMD_SF
#define CONFIG_SPI_FLASH
#define CONFIG_SPI_FLASH_MACRONIX
#define CONFIG_SPI_FLASH_BAR
#define CONFIG_SF_DEFAULT_BUS 0
#define CONFIG_SF_DEFAULT_CS 0
#define CONFIG_SF_DEFAULT_SPEED 40000000
#define CONFIG_SF_DEFAULT_MODE SPI_MODE_0
#define FSL_QSPI_FLASH_NUM 1
#define FSL_QSPI_FLASH_SIZE SZ_64M
#define QSPI0_BASE_ADDR QSPI1_IPS_BASE_ADDR
#define QSPI0_AMBA_BASE QSPI0_ARB_BASE_ADDR
#endif
#endif /* __CONFIG_H */