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Message-ID: <1589284068-4079-2-git-send-email-christophe.kerello@st.com>
Date: Tue, 12 May 2020 13:47:47 +0200
From: Christophe Kerello <christophe.kerello@...com>
To: <miquel.raynal@...tlin.com>, <richard@....at>, <vigneshr@...com>
CC: <linux-mtd@...ts.infradead.org>, <linux-kernel@...r.kernel.org>,
<linux-stm32@...md-mailman.stormreply.com>,
Christophe Kerello <christophe.kerello@...com>
Subject: [PATCH v5 1/2] mtd: rawnand: stm32_fmc2: cosmetic change to use nfc instead of fmc2 where relevant
This patch renames functions and local variables.
This cleanup is done to get all functions starting by stm32_fmc2_nfc
in the FMC2 raw NAND driver when all functions will start by
stm32_fmc2_ebi in the FMC2 EBI driver.
Signed-off-by: Christophe Kerello <christophe.kerello@...com>
Reviewed-by: Miquel Raynal <miquel.raynal@...tlin.com>
---
Changes in v5:
- rebase on top of nand/next
Changes in v3:
- fix s/conf/cf/, s/nfc/NFC/
- add Miquel reviewed-by tag
drivers/mtd/nand/raw/stm32_fmc2_nand.c | 810 ++++++++++++++++-----------------
1 file changed, 403 insertions(+), 407 deletions(-)
diff --git a/drivers/mtd/nand/raw/stm32_fmc2_nand.c b/drivers/mtd/nand/raw/stm32_fmc2_nand.c
index 30083e5..901ebd8 100644
--- a/drivers/mtd/nand/raw/stm32_fmc2_nand.c
+++ b/drivers/mtd/nand/raw/stm32_fmc2_nand.c
@@ -280,12 +280,12 @@ static inline struct stm32_fmc2_nfc *to_stm32_nfc(struct nand_controller *base)
return container_of(base, struct stm32_fmc2_nfc, base);
}
-static void stm32_fmc2_timings_init(struct nand_chip *chip)
+static void stm32_fmc2_nfc_timings_init(struct nand_chip *chip)
{
- struct stm32_fmc2_nfc *fmc2 = to_stm32_nfc(chip->controller);
+ struct stm32_fmc2_nfc *nfc = to_stm32_nfc(chip->controller);
struct stm32_fmc2_nand *nand = to_fmc2_nand(chip);
struct stm32_fmc2_timings *timings = &nand->timings;
- u32 pcr = readl_relaxed(fmc2->io_base + FMC2_PCR);
+ u32 pcr = readl_relaxed(nfc->io_base + FMC2_PCR);
u32 pmem, patt;
/* Set tclr/tar timings */
@@ -306,15 +306,15 @@ static void stm32_fmc2_timings_init(struct nand_chip *chip)
patt |= FMC2_PATT_ATTHOLD(timings->thold_att);
patt |= FMC2_PATT_ATTHIZ(timings->thiz);
- writel_relaxed(pcr, fmc2->io_base + FMC2_PCR);
- writel_relaxed(pmem, fmc2->io_base + FMC2_PMEM);
- writel_relaxed(patt, fmc2->io_base + FMC2_PATT);
+ writel_relaxed(pcr, nfc->io_base + FMC2_PCR);
+ writel_relaxed(pmem, nfc->io_base + FMC2_PMEM);
+ writel_relaxed(patt, nfc->io_base + FMC2_PATT);
}
-static void stm32_fmc2_setup(struct nand_chip *chip)
+static void stm32_fmc2_nfc_setup(struct nand_chip *chip)
{
- struct stm32_fmc2_nfc *fmc2 = to_stm32_nfc(chip->controller);
- u32 pcr = readl_relaxed(fmc2->io_base + FMC2_PCR);
+ struct stm32_fmc2_nfc *nfc = to_stm32_nfc(chip->controller);
+ u32 pcr = readl_relaxed(nfc->io_base + FMC2_PCR);
/* Configure ECC algorithm (default configuration is Hamming) */
pcr &= ~FMC2_PCR_ECCALG;
@@ -335,174 +335,174 @@ static void stm32_fmc2_setup(struct nand_chip *chip)
pcr &= ~FMC2_PCR_ECCSS_MASK;
pcr |= FMC2_PCR_ECCSS(FMC2_PCR_ECCSS_512);
- writel_relaxed(pcr, fmc2->io_base + FMC2_PCR);
+ writel_relaxed(pcr, nfc->io_base + FMC2_PCR);
}
-static int stm32_fmc2_select_chip(struct nand_chip *chip, int chipnr)
+static int stm32_fmc2_nfc_select_chip(struct nand_chip *chip, int chipnr)
{
- struct stm32_fmc2_nfc *fmc2 = to_stm32_nfc(chip->controller);
+ struct stm32_fmc2_nfc *nfc = to_stm32_nfc(chip->controller);
struct stm32_fmc2_nand *nand = to_fmc2_nand(chip);
struct dma_slave_config dma_cfg;
int ret;
- if (nand->cs_used[chipnr] == fmc2->cs_sel)
+ if (nand->cs_used[chipnr] == nfc->cs_sel)
return 0;
- fmc2->cs_sel = nand->cs_used[chipnr];
- stm32_fmc2_setup(chip);
- stm32_fmc2_timings_init(chip);
+ nfc->cs_sel = nand->cs_used[chipnr];
+ stm32_fmc2_nfc_setup(chip);
+ stm32_fmc2_nfc_timings_init(chip);
- if (fmc2->dma_tx_ch && fmc2->dma_rx_ch) {
+ if (nfc->dma_tx_ch && nfc->dma_rx_ch) {
memset(&dma_cfg, 0, sizeof(dma_cfg));
- dma_cfg.src_addr = fmc2->data_phys_addr[fmc2->cs_sel];
- dma_cfg.dst_addr = fmc2->data_phys_addr[fmc2->cs_sel];
+ dma_cfg.src_addr = nfc->data_phys_addr[nfc->cs_sel];
+ dma_cfg.dst_addr = nfc->data_phys_addr[nfc->cs_sel];
dma_cfg.src_addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES;
dma_cfg.dst_addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES;
dma_cfg.src_maxburst = 32;
dma_cfg.dst_maxburst = 32;
- ret = dmaengine_slave_config(fmc2->dma_tx_ch, &dma_cfg);
+ ret = dmaengine_slave_config(nfc->dma_tx_ch, &dma_cfg);
if (ret) {
- dev_err(fmc2->dev, "tx DMA engine slave config failed\n");
+ dev_err(nfc->dev, "tx DMA engine slave config failed\n");
return ret;
}
- ret = dmaengine_slave_config(fmc2->dma_rx_ch, &dma_cfg);
+ ret = dmaengine_slave_config(nfc->dma_rx_ch, &dma_cfg);
if (ret) {
- dev_err(fmc2->dev, "rx DMA engine slave config failed\n");
+ dev_err(nfc->dev, "rx DMA engine slave config failed\n");
return ret;
}
}
- if (fmc2->dma_ecc_ch) {
+ if (nfc->dma_ecc_ch) {
/*
* Hamming: we read HECCR register
* BCH4/BCH8: we read BCHDSRSx registers
*/
memset(&dma_cfg, 0, sizeof(dma_cfg));
- dma_cfg.src_addr = fmc2->io_phys_addr;
+ dma_cfg.src_addr = nfc->io_phys_addr;
dma_cfg.src_addr += chip->ecc.strength == FMC2_ECC_HAM ?
FMC2_HECCR : FMC2_BCHDSR0;
dma_cfg.src_addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES;
- ret = dmaengine_slave_config(fmc2->dma_ecc_ch, &dma_cfg);
+ ret = dmaengine_slave_config(nfc->dma_ecc_ch, &dma_cfg);
if (ret) {
- dev_err(fmc2->dev, "ECC DMA engine slave config failed\n");
+ dev_err(nfc->dev, "ECC DMA engine slave config failed\n");
return ret;
}
/* Calculate ECC length needed for one sector */
- fmc2->dma_ecc_len = chip->ecc.strength == FMC2_ECC_HAM ?
- FMC2_HECCR_LEN : FMC2_BCHDSRS_LEN;
+ nfc->dma_ecc_len = chip->ecc.strength == FMC2_ECC_HAM ?
+ FMC2_HECCR_LEN : FMC2_BCHDSRS_LEN;
}
return 0;
}
-static void stm32_fmc2_set_buswidth_16(struct stm32_fmc2_nfc *fmc2, bool set)
+static void stm32_fmc2_nfc_set_buswidth_16(struct stm32_fmc2_nfc *nfc, bool set)
{
- u32 pcr = readl_relaxed(fmc2->io_base + FMC2_PCR);
+ u32 pcr = readl_relaxed(nfc->io_base + FMC2_PCR);
pcr &= ~FMC2_PCR_PWID_MASK;
if (set)
pcr |= FMC2_PCR_PWID(FMC2_PCR_PWID_BUSWIDTH_16);
- writel_relaxed(pcr, fmc2->io_base + FMC2_PCR);
+ writel_relaxed(pcr, nfc->io_base + FMC2_PCR);
}
-static void stm32_fmc2_set_ecc(struct stm32_fmc2_nfc *fmc2, bool enable)
+static void stm32_fmc2_nfc_set_ecc(struct stm32_fmc2_nfc *nfc, bool enable)
{
- u32 pcr = readl(fmc2->io_base + FMC2_PCR);
+ u32 pcr = readl(nfc->io_base + FMC2_PCR);
pcr &= ~FMC2_PCR_ECCEN;
if (enable)
pcr |= FMC2_PCR_ECCEN;
- writel(pcr, fmc2->io_base + FMC2_PCR);
+ writel(pcr, nfc->io_base + FMC2_PCR);
}
-static inline void stm32_fmc2_enable_seq_irq(struct stm32_fmc2_nfc *fmc2)
+static inline void stm32_fmc2_nfc_enable_seq_irq(struct stm32_fmc2_nfc *nfc)
{
- u32 csqier = readl_relaxed(fmc2->io_base + FMC2_CSQIER);
+ u32 csqier = readl_relaxed(nfc->io_base + FMC2_CSQIER);
csqier |= FMC2_CSQIER_TCIE;
- fmc2->irq_state = FMC2_IRQ_SEQ;
+ nfc->irq_state = FMC2_IRQ_SEQ;
- writel_relaxed(csqier, fmc2->io_base + FMC2_CSQIER);
+ writel_relaxed(csqier, nfc->io_base + FMC2_CSQIER);
}
-static inline void stm32_fmc2_disable_seq_irq(struct stm32_fmc2_nfc *fmc2)
+static inline void stm32_fmc2_nfc_disable_seq_irq(struct stm32_fmc2_nfc *nfc)
{
- u32 csqier = readl_relaxed(fmc2->io_base + FMC2_CSQIER);
+ u32 csqier = readl_relaxed(nfc->io_base + FMC2_CSQIER);
csqier &= ~FMC2_CSQIER_TCIE;
- writel_relaxed(csqier, fmc2->io_base + FMC2_CSQIER);
+ writel_relaxed(csqier, nfc->io_base + FMC2_CSQIER);
- fmc2->irq_state = FMC2_IRQ_UNKNOWN;
+ nfc->irq_state = FMC2_IRQ_UNKNOWN;
}
-static inline void stm32_fmc2_clear_seq_irq(struct stm32_fmc2_nfc *fmc2)
+static inline void stm32_fmc2_nfc_clear_seq_irq(struct stm32_fmc2_nfc *nfc)
{
- writel_relaxed(FMC2_CSQICR_CLEAR_IRQ, fmc2->io_base + FMC2_CSQICR);
+ writel_relaxed(FMC2_CSQICR_CLEAR_IRQ, nfc->io_base + FMC2_CSQICR);
}
-static inline void stm32_fmc2_enable_bch_irq(struct stm32_fmc2_nfc *fmc2,
- int mode)
+static inline void stm32_fmc2_nfc_enable_bch_irq(struct stm32_fmc2_nfc *nfc,
+ int mode)
{
- u32 bchier = readl_relaxed(fmc2->io_base + FMC2_BCHIER);
+ u32 bchier = readl_relaxed(nfc->io_base + FMC2_BCHIER);
if (mode == NAND_ECC_WRITE)
bchier |= FMC2_BCHIER_EPBRIE;
else
bchier |= FMC2_BCHIER_DERIE;
- fmc2->irq_state = FMC2_IRQ_BCH;
+ nfc->irq_state = FMC2_IRQ_BCH;
- writel_relaxed(bchier, fmc2->io_base + FMC2_BCHIER);
+ writel_relaxed(bchier, nfc->io_base + FMC2_BCHIER);
}
-static inline void stm32_fmc2_disable_bch_irq(struct stm32_fmc2_nfc *fmc2)
+static inline void stm32_fmc2_nfc_disable_bch_irq(struct stm32_fmc2_nfc *nfc)
{
- u32 bchier = readl_relaxed(fmc2->io_base + FMC2_BCHIER);
+ u32 bchier = readl_relaxed(nfc->io_base + FMC2_BCHIER);
bchier &= ~FMC2_BCHIER_DERIE;
bchier &= ~FMC2_BCHIER_EPBRIE;
- writel_relaxed(bchier, fmc2->io_base + FMC2_BCHIER);
+ writel_relaxed(bchier, nfc->io_base + FMC2_BCHIER);
- fmc2->irq_state = FMC2_IRQ_UNKNOWN;
+ nfc->irq_state = FMC2_IRQ_UNKNOWN;
}
-static inline void stm32_fmc2_clear_bch_irq(struct stm32_fmc2_nfc *fmc2)
+static inline void stm32_fmc2_nfc_clear_bch_irq(struct stm32_fmc2_nfc *nfc)
{
- writel_relaxed(FMC2_BCHICR_CLEAR_IRQ, fmc2->io_base + FMC2_BCHICR);
+ writel_relaxed(FMC2_BCHICR_CLEAR_IRQ, nfc->io_base + FMC2_BCHICR);
}
/*
* Enable ECC logic and reset syndrome/parity bits previously calculated
* Syndrome/parity bits is cleared by setting the ECCEN bit to 0
*/
-static void stm32_fmc2_hwctl(struct nand_chip *chip, int mode)
+static void stm32_fmc2_nfc_hwctl(struct nand_chip *chip, int mode)
{
- struct stm32_fmc2_nfc *fmc2 = to_stm32_nfc(chip->controller);
+ struct stm32_fmc2_nfc *nfc = to_stm32_nfc(chip->controller);
- stm32_fmc2_set_ecc(fmc2, false);
+ stm32_fmc2_nfc_set_ecc(nfc, false);
if (chip->ecc.strength != FMC2_ECC_HAM) {
- u32 pcr = readl_relaxed(fmc2->io_base + FMC2_PCR);
+ u32 pcr = readl_relaxed(nfc->io_base + FMC2_PCR);
if (mode == NAND_ECC_WRITE)
pcr |= FMC2_PCR_WEN;
else
pcr &= ~FMC2_PCR_WEN;
- writel_relaxed(pcr, fmc2->io_base + FMC2_PCR);
+ writel_relaxed(pcr, nfc->io_base + FMC2_PCR);
- reinit_completion(&fmc2->complete);
- stm32_fmc2_clear_bch_irq(fmc2);
- stm32_fmc2_enable_bch_irq(fmc2, mode);
+ reinit_completion(&nfc->complete);
+ stm32_fmc2_nfc_clear_bch_irq(nfc);
+ stm32_fmc2_nfc_enable_bch_irq(nfc, mode);
}
- stm32_fmc2_set_ecc(fmc2, true);
+ stm32_fmc2_nfc_set_ecc(nfc, true);
}
/*
@@ -510,37 +510,37 @@ static void stm32_fmc2_hwctl(struct nand_chip *chip, int mode)
* ECC is 3 bytes for 512 bytes of data (supports error correction up to
* max of 1-bit)
*/
-static inline void stm32_fmc2_ham_set_ecc(const u32 ecc_sta, u8 *ecc)
+static inline void stm32_fmc2_nfc_ham_set_ecc(const u32 ecc_sta, u8 *ecc)
{
ecc[0] = ecc_sta;
ecc[1] = ecc_sta >> 8;
ecc[2] = ecc_sta >> 16;
}
-static int stm32_fmc2_ham_calculate(struct nand_chip *chip, const u8 *data,
- u8 *ecc)
+static int stm32_fmc2_nfc_ham_calculate(struct nand_chip *chip, const u8 *data,
+ u8 *ecc)
{
- struct stm32_fmc2_nfc *fmc2 = to_stm32_nfc(chip->controller);
+ struct stm32_fmc2_nfc *nfc = to_stm32_nfc(chip->controller);
u32 sr, heccr;
int ret;
- ret = readl_relaxed_poll_timeout(fmc2->io_base + FMC2_SR,
+ ret = readl_relaxed_poll_timeout(nfc->io_base + FMC2_SR,
sr, sr & FMC2_SR_NWRF, 1,
1000 * FMC2_TIMEOUT_MS);
if (ret) {
- dev_err(fmc2->dev, "ham timeout\n");
+ dev_err(nfc->dev, "ham timeout\n");
return ret;
}
- heccr = readl_relaxed(fmc2->io_base + FMC2_HECCR);
- stm32_fmc2_ham_set_ecc(heccr, ecc);
- stm32_fmc2_set_ecc(fmc2, false);
+ heccr = readl_relaxed(nfc->io_base + FMC2_HECCR);
+ stm32_fmc2_nfc_ham_set_ecc(heccr, ecc);
+ stm32_fmc2_nfc_set_ecc(nfc, false);
return 0;
}
-static int stm32_fmc2_ham_correct(struct nand_chip *chip, u8 *dat,
- u8 *read_ecc, u8 *calc_ecc)
+static int stm32_fmc2_nfc_ham_correct(struct nand_chip *chip, u8 *dat,
+ u8 *read_ecc, u8 *calc_ecc)
{
u8 bit_position = 0, b0, b1, b2;
u32 byte_addr = 0, b;
@@ -596,28 +596,28 @@ static int stm32_fmc2_ham_correct(struct nand_chip *chip, u8 *dat,
* ECC is 7/13 bytes for 512 bytes of data (supports error correction up to
* max of 4-bit/8-bit)
*/
-static int stm32_fmc2_bch_calculate(struct nand_chip *chip, const u8 *data,
- u8 *ecc)
+static int stm32_fmc2_nfc_bch_calculate(struct nand_chip *chip, const u8 *data,
+ u8 *ecc)
{
- struct stm32_fmc2_nfc *fmc2 = to_stm32_nfc(chip->controller);
+ struct stm32_fmc2_nfc *nfc = to_stm32_nfc(chip->controller);
u32 bchpbr;
/* Wait until the BCH code is ready */
- if (!wait_for_completion_timeout(&fmc2->complete,
+ if (!wait_for_completion_timeout(&nfc->complete,
msecs_to_jiffies(FMC2_TIMEOUT_MS))) {
- dev_err(fmc2->dev, "bch timeout\n");
- stm32_fmc2_disable_bch_irq(fmc2);
+ dev_err(nfc->dev, "bch timeout\n");
+ stm32_fmc2_nfc_disable_bch_irq(nfc);
return -ETIMEDOUT;
}
/* Read parity bits */
- bchpbr = readl_relaxed(fmc2->io_base + FMC2_BCHPBR1);
+ bchpbr = readl_relaxed(nfc->io_base + FMC2_BCHPBR1);
ecc[0] = bchpbr;
ecc[1] = bchpbr >> 8;
ecc[2] = bchpbr >> 16;
ecc[3] = bchpbr >> 24;
- bchpbr = readl_relaxed(fmc2->io_base + FMC2_BCHPBR2);
+ bchpbr = readl_relaxed(nfc->io_base + FMC2_BCHPBR2);
ecc[4] = bchpbr;
ecc[5] = bchpbr >> 8;
ecc[6] = bchpbr >> 16;
@@ -625,22 +625,22 @@ static int stm32_fmc2_bch_calculate(struct nand_chip *chip, const u8 *data,
if (chip->ecc.strength == FMC2_ECC_BCH8) {
ecc[7] = bchpbr >> 24;
- bchpbr = readl_relaxed(fmc2->io_base + FMC2_BCHPBR3);
+ bchpbr = readl_relaxed(nfc->io_base + FMC2_BCHPBR3);
ecc[8] = bchpbr;
ecc[9] = bchpbr >> 8;
ecc[10] = bchpbr >> 16;
ecc[11] = bchpbr >> 24;
- bchpbr = readl_relaxed(fmc2->io_base + FMC2_BCHPBR4);
+ bchpbr = readl_relaxed(nfc->io_base + FMC2_BCHPBR4);
ecc[12] = bchpbr;
}
- stm32_fmc2_set_ecc(fmc2, false);
+ stm32_fmc2_nfc_set_ecc(nfc, false);
return 0;
}
-static int stm32_fmc2_bch_decode(int eccsize, u8 *dat, u32 *ecc_sta)
+static int stm32_fmc2_nfc_bch_decode(int eccsize, u8 *dat, u32 *ecc_sta)
{
u32 bchdsr0 = ecc_sta[0];
u32 bchdsr1 = ecc_sta[1];
@@ -679,33 +679,33 @@ static int stm32_fmc2_bch_decode(int eccsize, u8 *dat, u32 *ecc_sta)
return nb_errs;
}
-static int stm32_fmc2_bch_correct(struct nand_chip *chip, u8 *dat,
- u8 *read_ecc, u8 *calc_ecc)
+static int stm32_fmc2_nfc_bch_correct(struct nand_chip *chip, u8 *dat,
+ u8 *read_ecc, u8 *calc_ecc)
{
- struct stm32_fmc2_nfc *fmc2 = to_stm32_nfc(chip->controller);
+ struct stm32_fmc2_nfc *nfc = to_stm32_nfc(chip->controller);
u32 ecc_sta[5];
/* Wait until the decoding error is ready */
- if (!wait_for_completion_timeout(&fmc2->complete,
+ if (!wait_for_completion_timeout(&nfc->complete,
msecs_to_jiffies(FMC2_TIMEOUT_MS))) {
- dev_err(fmc2->dev, "bch timeout\n");
- stm32_fmc2_disable_bch_irq(fmc2);
+ dev_err(nfc->dev, "bch timeout\n");
+ stm32_fmc2_nfc_disable_bch_irq(nfc);
return -ETIMEDOUT;
}
- ecc_sta[0] = readl_relaxed(fmc2->io_base + FMC2_BCHDSR0);
- ecc_sta[1] = readl_relaxed(fmc2->io_base + FMC2_BCHDSR1);
- ecc_sta[2] = readl_relaxed(fmc2->io_base + FMC2_BCHDSR2);
- ecc_sta[3] = readl_relaxed(fmc2->io_base + FMC2_BCHDSR3);
- ecc_sta[4] = readl_relaxed(fmc2->io_base + FMC2_BCHDSR4);
+ ecc_sta[0] = readl_relaxed(nfc->io_base + FMC2_BCHDSR0);
+ ecc_sta[1] = readl_relaxed(nfc->io_base + FMC2_BCHDSR1);
+ ecc_sta[2] = readl_relaxed(nfc->io_base + FMC2_BCHDSR2);
+ ecc_sta[3] = readl_relaxed(nfc->io_base + FMC2_BCHDSR3);
+ ecc_sta[4] = readl_relaxed(nfc->io_base + FMC2_BCHDSR4);
- stm32_fmc2_set_ecc(fmc2, false);
+ stm32_fmc2_nfc_set_ecc(nfc, false);
- return stm32_fmc2_bch_decode(chip->ecc.size, dat, ecc_sta);
+ return stm32_fmc2_nfc_bch_decode(chip->ecc.size, dat, ecc_sta);
}
-static int stm32_fmc2_read_page(struct nand_chip *chip, u8 *buf,
- int oob_required, int page)
+static int stm32_fmc2_nfc_read_page(struct nand_chip *chip, u8 *buf,
+ int oob_required, int page)
{
struct mtd_info *mtd = nand_to_mtd(chip);
int ret, i, s, stat, eccsize = chip->ecc.size;
@@ -767,21 +767,21 @@ static int stm32_fmc2_read_page(struct nand_chip *chip, u8 *buf,
}
/* Sequencer read/write configuration */
-static void stm32_fmc2_rw_page_init(struct nand_chip *chip, int page,
- int raw, bool write_data)
+static void stm32_fmc2_nfc_rw_page_init(struct nand_chip *chip, int page,
+ int raw, bool write_data)
{
- struct stm32_fmc2_nfc *fmc2 = to_stm32_nfc(chip->controller);
+ struct stm32_fmc2_nfc *nfc = to_stm32_nfc(chip->controller);
struct mtd_info *mtd = nand_to_mtd(chip);
u32 csqcfgr1, csqcfgr2, csqcfgr3;
u32 csqar1, csqar2;
u32 ecc_offset = mtd->writesize + FMC2_BBM_LEN;
- u32 pcr = readl_relaxed(fmc2->io_base + FMC2_PCR);
+ u32 pcr = readl_relaxed(nfc->io_base + FMC2_PCR);
if (write_data)
pcr |= FMC2_PCR_WEN;
else
pcr &= ~FMC2_PCR_WEN;
- writel_relaxed(pcr, fmc2->io_base + FMC2_PCR);
+ writel_relaxed(pcr, nfc->io_base + FMC2_PCR);
/*
* - Set Program Page/Page Read command
@@ -843,7 +843,7 @@ static void stm32_fmc2_rw_page_init(struct nand_chip *chip, int page,
* - Calculate the number of address cycles to be issued
* - Set byte 5 of address cycle if needed
*/
- csqar2 = FMC2_CSQCAR2_NANDCEN(fmc2->cs_sel);
+ csqar2 = FMC2_CSQCAR2_NANDCEN(nfc->cs_sel);
if (chip->options & NAND_BUSWIDTH_16)
csqar2 |= FMC2_CSQCAR2_SAO(ecc_offset >> 1);
else
@@ -855,31 +855,32 @@ static void stm32_fmc2_rw_page_init(struct nand_chip *chip, int page,
csqcfgr1 |= FMC2_CSQCFGR1_ACYNBR(4);
}
- writel_relaxed(csqcfgr1, fmc2->io_base + FMC2_CSQCFGR1);
- writel_relaxed(csqcfgr2, fmc2->io_base + FMC2_CSQCFGR2);
- writel_relaxed(csqcfgr3, fmc2->io_base + FMC2_CSQCFGR3);
- writel_relaxed(csqar1, fmc2->io_base + FMC2_CSQAR1);
- writel_relaxed(csqar2, fmc2->io_base + FMC2_CSQAR2);
+ writel_relaxed(csqcfgr1, nfc->io_base + FMC2_CSQCFGR1);
+ writel_relaxed(csqcfgr2, nfc->io_base + FMC2_CSQCFGR2);
+ writel_relaxed(csqcfgr3, nfc->io_base + FMC2_CSQCFGR3);
+ writel_relaxed(csqar1, nfc->io_base + FMC2_CSQAR1);
+ writel_relaxed(csqar2, nfc->io_base + FMC2_CSQAR2);
}
-static void stm32_fmc2_dma_callback(void *arg)
+static void stm32_fmc2_nfc_dma_callback(void *arg)
{
complete((struct completion *)arg);
}
/* Read/write data from/to a page */
-static int stm32_fmc2_xfer(struct nand_chip *chip, const u8 *buf,
- int raw, bool write_data)
+static int stm32_fmc2_nfc_xfer(struct nand_chip *chip, const u8 *buf,
+ int raw, bool write_data)
{
- struct stm32_fmc2_nfc *fmc2 = to_stm32_nfc(chip->controller);
+ struct stm32_fmc2_nfc *nfc = to_stm32_nfc(chip->controller);
struct dma_async_tx_descriptor *desc_data, *desc_ecc;
struct scatterlist *sg;
- struct dma_chan *dma_ch = fmc2->dma_rx_ch;
+ struct dma_chan *dma_ch = nfc->dma_rx_ch;
enum dma_data_direction dma_data_dir = DMA_FROM_DEVICE;
enum dma_transfer_direction dma_transfer_dir = DMA_DEV_TO_MEM;
- u32 csqcr = readl_relaxed(fmc2->io_base + FMC2_CSQCR);
+ u32 csqcr = readl_relaxed(nfc->io_base + FMC2_CSQCR);
int eccsteps = chip->ecc.steps;
int eccsize = chip->ecc.size;
+ unsigned long timeout = msecs_to_jiffies(FMC2_TIMEOUT_MS);
const u8 *p = buf;
int s, ret;
@@ -887,20 +888,20 @@ static int stm32_fmc2_xfer(struct nand_chip *chip, const u8 *buf,
if (write_data) {
dma_data_dir = DMA_TO_DEVICE;
dma_transfer_dir = DMA_MEM_TO_DEV;
- dma_ch = fmc2->dma_tx_ch;
+ dma_ch = nfc->dma_tx_ch;
}
- for_each_sg(fmc2->dma_data_sg.sgl, sg, eccsteps, s) {
+ for_each_sg(nfc->dma_data_sg.sgl, sg, eccsteps, s) {
sg_set_buf(sg, p, eccsize);
p += eccsize;
}
- ret = dma_map_sg(fmc2->dev, fmc2->dma_data_sg.sgl,
+ ret = dma_map_sg(nfc->dev, nfc->dma_data_sg.sgl,
eccsteps, dma_data_dir);
if (ret < 0)
return ret;
- desc_data = dmaengine_prep_slave_sg(dma_ch, fmc2->dma_data_sg.sgl,
+ desc_data = dmaengine_prep_slave_sg(dma_ch, nfc->dma_data_sg.sgl,
eccsteps, dma_transfer_dir,
DMA_PREP_INTERRUPT);
if (!desc_data) {
@@ -908,10 +909,10 @@ static int stm32_fmc2_xfer(struct nand_chip *chip, const u8 *buf,
goto err_unmap_data;
}
- reinit_completion(&fmc2->dma_data_complete);
- reinit_completion(&fmc2->complete);
- desc_data->callback = stm32_fmc2_dma_callback;
- desc_data->callback_param = &fmc2->dma_data_complete;
+ reinit_completion(&nfc->dma_data_complete);
+ reinit_completion(&nfc->complete);
+ desc_data->callback = stm32_fmc2_nfc_dma_callback;
+ desc_data->callback_param = &nfc->dma_data_complete;
ret = dma_submit_error(dmaengine_submit(desc_data));
if (ret)
goto err_unmap_data;
@@ -920,19 +921,19 @@ static int stm32_fmc2_xfer(struct nand_chip *chip, const u8 *buf,
if (!write_data && !raw) {
/* Configure DMA ECC status */
- p = fmc2->ecc_buf;
- for_each_sg(fmc2->dma_ecc_sg.sgl, sg, eccsteps, s) {
- sg_set_buf(sg, p, fmc2->dma_ecc_len);
- p += fmc2->dma_ecc_len;
+ p = nfc->ecc_buf;
+ for_each_sg(nfc->dma_ecc_sg.sgl, sg, eccsteps, s) {
+ sg_set_buf(sg, p, nfc->dma_ecc_len);
+ p += nfc->dma_ecc_len;
}
- ret = dma_map_sg(fmc2->dev, fmc2->dma_ecc_sg.sgl,
+ ret = dma_map_sg(nfc->dev, nfc->dma_ecc_sg.sgl,
eccsteps, dma_data_dir);
if (ret < 0)
goto err_unmap_data;
- desc_ecc = dmaengine_prep_slave_sg(fmc2->dma_ecc_ch,
- fmc2->dma_ecc_sg.sgl,
+ desc_ecc = dmaengine_prep_slave_sg(nfc->dma_ecc_ch,
+ nfc->dma_ecc_sg.sgl,
eccsteps, dma_transfer_dir,
DMA_PREP_INTERRUPT);
if (!desc_ecc) {
@@ -940,76 +941,73 @@ static int stm32_fmc2_xfer(struct nand_chip *chip, const u8 *buf,
goto err_unmap_ecc;
}
- reinit_completion(&fmc2->dma_ecc_complete);
- desc_ecc->callback = stm32_fmc2_dma_callback;
- desc_ecc->callback_param = &fmc2->dma_ecc_complete;
+ reinit_completion(&nfc->dma_ecc_complete);
+ desc_ecc->callback = stm32_fmc2_nfc_dma_callback;
+ desc_ecc->callback_param = &nfc->dma_ecc_complete;
ret = dma_submit_error(dmaengine_submit(desc_ecc));
if (ret)
goto err_unmap_ecc;
- dma_async_issue_pending(fmc2->dma_ecc_ch);
+ dma_async_issue_pending(nfc->dma_ecc_ch);
}
- stm32_fmc2_clear_seq_irq(fmc2);
- stm32_fmc2_enable_seq_irq(fmc2);
+ stm32_fmc2_nfc_clear_seq_irq(nfc);
+ stm32_fmc2_nfc_enable_seq_irq(nfc);
/* Start the transfer */
csqcr |= FMC2_CSQCR_CSQSTART;
- writel_relaxed(csqcr, fmc2->io_base + FMC2_CSQCR);
+ writel_relaxed(csqcr, nfc->io_base + FMC2_CSQCR);
/* Wait end of sequencer transfer */
- if (!wait_for_completion_timeout(&fmc2->complete,
- msecs_to_jiffies(FMC2_TIMEOUT_MS))) {
- dev_err(fmc2->dev, "seq timeout\n");
- stm32_fmc2_disable_seq_irq(fmc2);
+ if (!wait_for_completion_timeout(&nfc->complete, timeout)) {
+ dev_err(nfc->dev, "seq timeout\n");
+ stm32_fmc2_nfc_disable_seq_irq(nfc);
dmaengine_terminate_all(dma_ch);
if (!write_data && !raw)
- dmaengine_terminate_all(fmc2->dma_ecc_ch);
+ dmaengine_terminate_all(nfc->dma_ecc_ch);
ret = -ETIMEDOUT;
goto err_unmap_ecc;
}
/* Wait DMA data transfer completion */
- if (!wait_for_completion_timeout(&fmc2->dma_data_complete,
- msecs_to_jiffies(FMC2_TIMEOUT_MS))) {
- dev_err(fmc2->dev, "data DMA timeout\n");
+ if (!wait_for_completion_timeout(&nfc->dma_data_complete, timeout)) {
+ dev_err(nfc->dev, "data DMA timeout\n");
dmaengine_terminate_all(dma_ch);
ret = -ETIMEDOUT;
}
/* Wait DMA ECC transfer completion */
if (!write_data && !raw) {
- if (!wait_for_completion_timeout(&fmc2->dma_ecc_complete,
- msecs_to_jiffies(FMC2_TIMEOUT_MS))) {
- dev_err(fmc2->dev, "ECC DMA timeout\n");
- dmaengine_terminate_all(fmc2->dma_ecc_ch);
+ if (!wait_for_completion_timeout(&nfc->dma_ecc_complete,
+ timeout)) {
+ dev_err(nfc->dev, "ECC DMA timeout\n");
+ dmaengine_terminate_all(nfc->dma_ecc_ch);
ret = -ETIMEDOUT;
}
}
err_unmap_ecc:
if (!write_data && !raw)
- dma_unmap_sg(fmc2->dev, fmc2->dma_ecc_sg.sgl,
+ dma_unmap_sg(nfc->dev, nfc->dma_ecc_sg.sgl,
eccsteps, dma_data_dir);
err_unmap_data:
- dma_unmap_sg(fmc2->dev, fmc2->dma_data_sg.sgl, eccsteps, dma_data_dir);
+ dma_unmap_sg(nfc->dev, nfc->dma_data_sg.sgl, eccsteps, dma_data_dir);
return ret;
}
-static int stm32_fmc2_sequencer_write(struct nand_chip *chip,
- const u8 *buf, int oob_required,
- int page, int raw)
+static int stm32_fmc2_nfc_seq_write(struct nand_chip *chip, const u8 *buf,
+ int oob_required, int page, int raw)
{
struct mtd_info *mtd = nand_to_mtd(chip);
int ret;
/* Configure the sequencer */
- stm32_fmc2_rw_page_init(chip, page, raw, true);
+ stm32_fmc2_nfc_rw_page_init(chip, page, raw, true);
/* Write the page */
- ret = stm32_fmc2_xfer(chip, buf, raw, true);
+ ret = stm32_fmc2_nfc_xfer(chip, buf, raw, true);
if (ret)
return ret;
@@ -1025,53 +1023,50 @@ static int stm32_fmc2_sequencer_write(struct nand_chip *chip,
return nand_prog_page_end_op(chip);
}
-static int stm32_fmc2_sequencer_write_page(struct nand_chip *chip,
- const u8 *buf,
- int oob_required,
- int page)
+static int stm32_fmc2_nfc_seq_write_page(struct nand_chip *chip, const u8 *buf,
+ int oob_required, int page)
{
int ret;
- ret = stm32_fmc2_select_chip(chip, chip->cur_cs);
+ ret = stm32_fmc2_nfc_select_chip(chip, chip->cur_cs);
if (ret)
return ret;
- return stm32_fmc2_sequencer_write(chip, buf, oob_required, page, false);
+ return stm32_fmc2_nfc_seq_write(chip, buf, oob_required, page, false);
}
-static int stm32_fmc2_sequencer_write_page_raw(struct nand_chip *chip,
- const u8 *buf,
- int oob_required,
- int page)
+static int stm32_fmc2_nfc_seq_write_page_raw(struct nand_chip *chip,
+ const u8 *buf, int oob_required,
+ int page)
{
int ret;
- ret = stm32_fmc2_select_chip(chip, chip->cur_cs);
+ ret = stm32_fmc2_nfc_select_chip(chip, chip->cur_cs);
if (ret)
return ret;
- return stm32_fmc2_sequencer_write(chip, buf, oob_required, page, true);
+ return stm32_fmc2_nfc_seq_write(chip, buf, oob_required, page, true);
}
/* Get a status indicating which sectors have errors */
-static inline u16 stm32_fmc2_get_mapping_status(struct stm32_fmc2_nfc *fmc2)
+static inline u16 stm32_fmc2_nfc_get_mapping_status(struct stm32_fmc2_nfc *nfc)
{
- u32 csqemsr = readl_relaxed(fmc2->io_base + FMC2_CSQEMSR);
+ u32 csqemsr = readl_relaxed(nfc->io_base + FMC2_CSQEMSR);
return csqemsr & FMC2_CSQEMSR_SEM;
}
-static int stm32_fmc2_sequencer_correct(struct nand_chip *chip, u8 *dat,
- u8 *read_ecc, u8 *calc_ecc)
+static int stm32_fmc2_nfc_seq_correct(struct nand_chip *chip, u8 *dat,
+ u8 *read_ecc, u8 *calc_ecc)
{
struct mtd_info *mtd = nand_to_mtd(chip);
- struct stm32_fmc2_nfc *fmc2 = to_stm32_nfc(chip->controller);
+ struct stm32_fmc2_nfc *nfc = to_stm32_nfc(chip->controller);
int eccbytes = chip->ecc.bytes;
int eccsteps = chip->ecc.steps;
int eccstrength = chip->ecc.strength;
int i, s, eccsize = chip->ecc.size;
- u32 *ecc_sta = (u32 *)fmc2->ecc_buf;
- u16 sta_map = stm32_fmc2_get_mapping_status(fmc2);
+ u32 *ecc_sta = (u32 *)nfc->ecc_buf;
+ u16 sta_map = stm32_fmc2_nfc_get_mapping_status(nfc);
unsigned int max_bitflips = 0;
for (i = 0, s = 0; s < eccsteps; s++, i += eccbytes, dat += eccsize) {
@@ -1080,10 +1075,11 @@ static int stm32_fmc2_sequencer_correct(struct nand_chip *chip, u8 *dat,
if (eccstrength == FMC2_ECC_HAM) {
/* Ecc_sta = FMC2_HECCR */
if (sta_map & BIT(s)) {
- stm32_fmc2_ham_set_ecc(*ecc_sta, &calc_ecc[i]);
- stat = stm32_fmc2_ham_correct(chip, dat,
- &read_ecc[i],
- &calc_ecc[i]);
+ stm32_fmc2_nfc_ham_set_ecc(*ecc_sta,
+ &calc_ecc[i]);
+ stat = stm32_fmc2_nfc_ham_correct(chip, dat,
+ &read_ecc[i],
+ &calc_ecc[i]);
}
ecc_sta++;
} else {
@@ -1095,8 +1091,8 @@ static int stm32_fmc2_sequencer_correct(struct nand_chip *chip, u8 *dat,
* Ecc_sta[4] = FMC2_BCHDSR4
*/
if (sta_map & BIT(s))
- stat = stm32_fmc2_bch_decode(eccsize, dat,
- ecc_sta);
+ stat = stm32_fmc2_nfc_bch_decode(eccsize, dat,
+ ecc_sta);
ecc_sta += 5;
}
@@ -1119,29 +1115,29 @@ static int stm32_fmc2_sequencer_correct(struct nand_chip *chip, u8 *dat,
return max_bitflips;
}
-static int stm32_fmc2_sequencer_read_page(struct nand_chip *chip, u8 *buf,
- int oob_required, int page)
+static int stm32_fmc2_nfc_seq_read_page(struct nand_chip *chip, u8 *buf,
+ int oob_required, int page)
{
struct mtd_info *mtd = nand_to_mtd(chip);
- struct stm32_fmc2_nfc *fmc2 = to_stm32_nfc(chip->controller);
+ struct stm32_fmc2_nfc *nfc = to_stm32_nfc(chip->controller);
u8 *ecc_calc = chip->ecc.calc_buf;
u8 *ecc_code = chip->ecc.code_buf;
u16 sta_map;
int ret;
- ret = stm32_fmc2_select_chip(chip, chip->cur_cs);
+ ret = stm32_fmc2_nfc_select_chip(chip, chip->cur_cs);
if (ret)
return ret;
/* Configure the sequencer */
- stm32_fmc2_rw_page_init(chip, page, 0, false);
+ stm32_fmc2_nfc_rw_page_init(chip, page, 0, false);
/* Read the page */
- ret = stm32_fmc2_xfer(chip, buf, 0, false);
+ ret = stm32_fmc2_nfc_xfer(chip, buf, 0, false);
if (ret)
return ret;
- sta_map = stm32_fmc2_get_mapping_status(fmc2);
+ sta_map = stm32_fmc2_nfc_get_mapping_status(nfc);
/* Check if errors happen */
if (likely(!sta_map)) {
@@ -1168,21 +1164,21 @@ static int stm32_fmc2_sequencer_read_page(struct nand_chip *chip, u8 *buf,
return chip->ecc.correct(chip, buf, ecc_code, ecc_calc);
}
-static int stm32_fmc2_sequencer_read_page_raw(struct nand_chip *chip, u8 *buf,
- int oob_required, int page)
+static int stm32_fmc2_nfc_seq_read_page_raw(struct nand_chip *chip, u8 *buf,
+ int oob_required, int page)
{
struct mtd_info *mtd = nand_to_mtd(chip);
int ret;
- ret = stm32_fmc2_select_chip(chip, chip->cur_cs);
+ ret = stm32_fmc2_nfc_select_chip(chip, chip->cur_cs);
if (ret)
return ret;
/* Configure the sequencer */
- stm32_fmc2_rw_page_init(chip, page, 1, false);
+ stm32_fmc2_nfc_rw_page_init(chip, page, 1, false);
/* Read the page */
- ret = stm32_fmc2_xfer(chip, buf, 1, false);
+ ret = stm32_fmc2_nfc_xfer(chip, buf, 1, false);
if (ret)
return ret;
@@ -1195,31 +1191,31 @@ static int stm32_fmc2_sequencer_read_page_raw(struct nand_chip *chip, u8 *buf,
return 0;
}
-static irqreturn_t stm32_fmc2_irq(int irq, void *dev_id)
+static irqreturn_t stm32_fmc2_nfc_irq(int irq, void *dev_id)
{
- struct stm32_fmc2_nfc *fmc2 = (struct stm32_fmc2_nfc *)dev_id;
+ struct stm32_fmc2_nfc *nfc = (struct stm32_fmc2_nfc *)dev_id;
- if (fmc2->irq_state == FMC2_IRQ_SEQ)
+ if (nfc->irq_state == FMC2_IRQ_SEQ)
/* Sequencer is used */
- stm32_fmc2_disable_seq_irq(fmc2);
- else if (fmc2->irq_state == FMC2_IRQ_BCH)
+ stm32_fmc2_nfc_disable_seq_irq(nfc);
+ else if (nfc->irq_state == FMC2_IRQ_BCH)
/* BCH is used */
- stm32_fmc2_disable_bch_irq(fmc2);
+ stm32_fmc2_nfc_disable_bch_irq(nfc);
- complete(&fmc2->complete);
+ complete(&nfc->complete);
return IRQ_HANDLED;
}
-static void stm32_fmc2_read_data(struct nand_chip *chip, void *buf,
- unsigned int len, bool force_8bit)
+static void stm32_fmc2_nfc_read_data(struct nand_chip *chip, void *buf,
+ unsigned int len, bool force_8bit)
{
- struct stm32_fmc2_nfc *fmc2 = to_stm32_nfc(chip->controller);
- void __iomem *io_addr_r = fmc2->data_base[fmc2->cs_sel];
+ struct stm32_fmc2_nfc *nfc = to_stm32_nfc(chip->controller);
+ void __iomem *io_addr_r = nfc->data_base[nfc->cs_sel];
if (force_8bit && chip->options & NAND_BUSWIDTH_16)
/* Reconfigure bus width to 8-bit */
- stm32_fmc2_set_buswidth_16(fmc2, false);
+ stm32_fmc2_nfc_set_buswidth_16(nfc, false);
if (!IS_ALIGNED((uintptr_t)buf, sizeof(u32))) {
if (!IS_ALIGNED((uintptr_t)buf, sizeof(u16)) && len) {
@@ -1255,18 +1251,18 @@ static void stm32_fmc2_read_data(struct nand_chip *chip, void *buf,
if (force_8bit && chip->options & NAND_BUSWIDTH_16)
/* Reconfigure bus width to 16-bit */
- stm32_fmc2_set_buswidth_16(fmc2, true);
+ stm32_fmc2_nfc_set_buswidth_16(nfc, true);
}
-static void stm32_fmc2_write_data(struct nand_chip *chip, const void *buf,
- unsigned int len, bool force_8bit)
+static void stm32_fmc2_nfc_write_data(struct nand_chip *chip, const void *buf,
+ unsigned int len, bool force_8bit)
{
- struct stm32_fmc2_nfc *fmc2 = to_stm32_nfc(chip->controller);
- void __iomem *io_addr_w = fmc2->data_base[fmc2->cs_sel];
+ struct stm32_fmc2_nfc *nfc = to_stm32_nfc(chip->controller);
+ void __iomem *io_addr_w = nfc->data_base[nfc->cs_sel];
if (force_8bit && chip->options & NAND_BUSWIDTH_16)
/* Reconfigure bus width to 8-bit */
- stm32_fmc2_set_buswidth_16(fmc2, false);
+ stm32_fmc2_nfc_set_buswidth_16(nfc, false);
if (!IS_ALIGNED((uintptr_t)buf, sizeof(u32))) {
if (!IS_ALIGNED((uintptr_t)buf, sizeof(u16)) && len) {
@@ -1302,47 +1298,48 @@ static void stm32_fmc2_write_data(struct nand_chip *chip, const void *buf,
if (force_8bit && chip->options & NAND_BUSWIDTH_16)
/* Reconfigure bus width to 16-bit */
- stm32_fmc2_set_buswidth_16(fmc2, true);
+ stm32_fmc2_nfc_set_buswidth_16(nfc, true);
}
-static int stm32_fmc2_waitrdy(struct nand_chip *chip, unsigned long timeout_ms)
+static int stm32_fmc2_nfc_waitrdy(struct nand_chip *chip,
+ unsigned long timeout_ms)
{
- struct stm32_fmc2_nfc *fmc2 = to_stm32_nfc(chip->controller);
+ struct stm32_fmc2_nfc *nfc = to_stm32_nfc(chip->controller);
const struct nand_sdr_timings *timings;
u32 isr, sr;
/* Check if there is no pending requests to the NAND flash */
- if (readl_relaxed_poll_timeout_atomic(fmc2->io_base + FMC2_SR, sr,
+ if (readl_relaxed_poll_timeout_atomic(nfc->io_base + FMC2_SR, sr,
sr & FMC2_SR_NWRF, 1,
1000 * FMC2_TIMEOUT_MS))
- dev_warn(fmc2->dev, "Waitrdy timeout\n");
+ dev_warn(nfc->dev, "Waitrdy timeout\n");
/* Wait tWB before R/B# signal is low */
timings = nand_get_sdr_timings(&chip->data_interface);
ndelay(PSEC_TO_NSEC(timings->tWB_max));
/* R/B# signal is low, clear high level flag */
- writel_relaxed(FMC2_ICR_CIHLF, fmc2->io_base + FMC2_ICR);
+ writel_relaxed(FMC2_ICR_CIHLF, nfc->io_base + FMC2_ICR);
/* Wait R/B# signal is high */
- return readl_relaxed_poll_timeout_atomic(fmc2->io_base + FMC2_ISR,
+ return readl_relaxed_poll_timeout_atomic(nfc->io_base + FMC2_ISR,
isr, isr & FMC2_ISR_IHLF,
5, 1000 * timeout_ms);
}
-static int stm32_fmc2_exec_op(struct nand_chip *chip,
- const struct nand_operation *op,
- bool check_only)
+static int stm32_fmc2_nfc_exec_op(struct nand_chip *chip,
+ const struct nand_operation *op,
+ bool check_only)
{
- struct stm32_fmc2_nfc *fmc2 = to_stm32_nfc(chip->controller);
+ struct stm32_fmc2_nfc *nfc = to_stm32_nfc(chip->controller);
const struct nand_op_instr *instr = NULL;
- unsigned int op_id, i;
+ unsigned int op_id, i, timeout;
int ret;
if (check_only)
return 0;
- ret = stm32_fmc2_select_chip(chip, op->cs);
+ ret = stm32_fmc2_nfc_select_chip(chip, op->cs);
if (ret)
return ret;
@@ -1352,30 +1349,30 @@ static int stm32_fmc2_exec_op(struct nand_chip *chip,
switch (instr->type) {
case NAND_OP_CMD_INSTR:
writeb_relaxed(instr->ctx.cmd.opcode,
- fmc2->cmd_base[fmc2->cs_sel]);
+ nfc->cmd_base[nfc->cs_sel]);
break;
case NAND_OP_ADDR_INSTR:
for (i = 0; i < instr->ctx.addr.naddrs; i++)
writeb_relaxed(instr->ctx.addr.addrs[i],
- fmc2->addr_base[fmc2->cs_sel]);
+ nfc->addr_base[nfc->cs_sel]);
break;
case NAND_OP_DATA_IN_INSTR:
- stm32_fmc2_read_data(chip, instr->ctx.data.buf.in,
- instr->ctx.data.len,
- instr->ctx.data.force_8bit);
+ stm32_fmc2_nfc_read_data(chip, instr->ctx.data.buf.in,
+ instr->ctx.data.len,
+ instr->ctx.data.force_8bit);
break;
case NAND_OP_DATA_OUT_INSTR:
- stm32_fmc2_write_data(chip, instr->ctx.data.buf.out,
- instr->ctx.data.len,
- instr->ctx.data.force_8bit);
+ stm32_fmc2_nfc_write_data(chip, instr->ctx.data.buf.out,
+ instr->ctx.data.len,
+ instr->ctx.data.force_8bit);
break;
case NAND_OP_WAITRDY_INSTR:
- ret = stm32_fmc2_waitrdy(chip,
- instr->ctx.waitrdy.timeout_ms);
+ timeout = instr->ctx.waitrdy.timeout_ms;
+ ret = stm32_fmc2_nfc_waitrdy(chip, timeout);
break;
}
}
@@ -1383,13 +1380,13 @@ static int stm32_fmc2_exec_op(struct nand_chip *chip,
return ret;
}
-static void stm32_fmc2_init(struct stm32_fmc2_nfc *fmc2)
+static void stm32_fmc2_nfc_init(struct stm32_fmc2_nfc *nfc)
{
- u32 pcr = readl_relaxed(fmc2->io_base + FMC2_PCR);
- u32 bcr1 = readl_relaxed(fmc2->io_base + FMC2_BCR1);
+ u32 pcr = readl_relaxed(nfc->io_base + FMC2_PCR);
+ u32 bcr1 = readl_relaxed(nfc->io_base + FMC2_BCR1);
/* Set CS used to undefined */
- fmc2->cs_sel = -1;
+ nfc->cs_sel = -1;
/* Enable wait feature and nand flash memory bank */
pcr |= FMC2_PCR_PWAITEN;
@@ -1419,19 +1416,19 @@ static void stm32_fmc2_init(struct stm32_fmc2_nfc *fmc2)
/* Enable FMC2 controller */
bcr1 |= FMC2_BCR1_FMC2EN;
- writel_relaxed(bcr1, fmc2->io_base + FMC2_BCR1);
- writel_relaxed(pcr, fmc2->io_base + FMC2_PCR);
- writel_relaxed(FMC2_PMEM_DEFAULT, fmc2->io_base + FMC2_PMEM);
- writel_relaxed(FMC2_PATT_DEFAULT, fmc2->io_base + FMC2_PATT);
+ writel_relaxed(bcr1, nfc->io_base + FMC2_BCR1);
+ writel_relaxed(pcr, nfc->io_base + FMC2_PCR);
+ writel_relaxed(FMC2_PMEM_DEFAULT, nfc->io_base + FMC2_PMEM);
+ writel_relaxed(FMC2_PATT_DEFAULT, nfc->io_base + FMC2_PATT);
}
-static void stm32_fmc2_calc_timings(struct nand_chip *chip,
- const struct nand_sdr_timings *sdrt)
+static void stm32_fmc2_nfc_calc_timings(struct nand_chip *chip,
+ const struct nand_sdr_timings *sdrt)
{
- struct stm32_fmc2_nfc *fmc2 = to_stm32_nfc(chip->controller);
+ struct stm32_fmc2_nfc *nfc = to_stm32_nfc(chip->controller);
struct stm32_fmc2_nand *nand = to_fmc2_nand(chip);
struct stm32_fmc2_timings *tims = &nand->timings;
- unsigned long hclk = clk_get_rate(fmc2->clk);
+ unsigned long hclk = clk_get_rate(nfc->clk);
unsigned long hclkp = NSEC_PER_SEC / (hclk / 1000);
unsigned long timing, tar, tclr, thiz, twait;
unsigned long tset_mem, tset_att, thold_mem, thold_att;
@@ -1555,8 +1552,8 @@ static void stm32_fmc2_calc_timings(struct nand_chip *chip,
tims->thold_att = clamp_val(timing, 1, FMC2_PMEM_PATT_TIMING_MASK);
}
-static int stm32_fmc2_setup_interface(struct nand_chip *chip, int chipnr,
- const struct nand_data_interface *conf)
+static int stm32_fmc2_nfc_setup_interface(struct nand_chip *chip, int chipnr,
+ const struct nand_data_interface *conf)
{
const struct nand_sdr_timings *sdrt;
@@ -1567,68 +1564,67 @@ static int stm32_fmc2_setup_interface(struct nand_chip *chip, int chipnr,
if (chipnr == NAND_DATA_IFACE_CHECK_ONLY)
return 0;
- stm32_fmc2_calc_timings(chip, sdrt);
- stm32_fmc2_timings_init(chip);
+ stm32_fmc2_nfc_calc_timings(chip, sdrt);
+ stm32_fmc2_nfc_timings_init(chip);
return 0;
}
-static int stm32_fmc2_dma_setup(struct stm32_fmc2_nfc *fmc2)
+static int stm32_fmc2_nfc_dma_setup(struct stm32_fmc2_nfc *nfc)
{
int ret = 0;
- fmc2->dma_tx_ch = dma_request_chan(fmc2->dev, "tx");
- if (IS_ERR(fmc2->dma_tx_ch)) {
- ret = PTR_ERR(fmc2->dma_tx_ch);
+ nfc->dma_tx_ch = dma_request_chan(nfc->dev, "tx");
+ if (IS_ERR(nfc->dma_tx_ch)) {
+ ret = PTR_ERR(nfc->dma_tx_ch);
if (ret != -ENODEV)
- dev_err(fmc2->dev,
+ dev_err(nfc->dev,
"failed to request tx DMA channel: %d\n", ret);
- fmc2->dma_tx_ch = NULL;
+ nfc->dma_tx_ch = NULL;
goto err_dma;
}
- fmc2->dma_rx_ch = dma_request_chan(fmc2->dev, "rx");
- if (IS_ERR(fmc2->dma_rx_ch)) {
- ret = PTR_ERR(fmc2->dma_rx_ch);
+ nfc->dma_rx_ch = dma_request_chan(nfc->dev, "rx");
+ if (IS_ERR(nfc->dma_rx_ch)) {
+ ret = PTR_ERR(nfc->dma_rx_ch);
if (ret != -ENODEV)
- dev_err(fmc2->dev,
+ dev_err(nfc->dev,
"failed to request rx DMA channel: %d\n", ret);
- fmc2->dma_rx_ch = NULL;
+ nfc->dma_rx_ch = NULL;
goto err_dma;
}
- fmc2->dma_ecc_ch = dma_request_chan(fmc2->dev, "ecc");
- if (IS_ERR(fmc2->dma_ecc_ch)) {
- ret = PTR_ERR(fmc2->dma_ecc_ch);
+ nfc->dma_ecc_ch = dma_request_chan(nfc->dev, "ecc");
+ if (IS_ERR(nfc->dma_ecc_ch)) {
+ ret = PTR_ERR(nfc->dma_ecc_ch);
if (ret != -ENODEV)
- dev_err(fmc2->dev,
+ dev_err(nfc->dev,
"failed to request ecc DMA channel: %d\n", ret);
- fmc2->dma_ecc_ch = NULL;
+ nfc->dma_ecc_ch = NULL;
goto err_dma;
}
- ret = sg_alloc_table(&fmc2->dma_ecc_sg, FMC2_MAX_SG, GFP_KERNEL);
+ ret = sg_alloc_table(&nfc->dma_ecc_sg, FMC2_MAX_SG, GFP_KERNEL);
if (ret)
return ret;
/* Allocate a buffer to store ECC status registers */
- fmc2->ecc_buf = devm_kzalloc(fmc2->dev, FMC2_MAX_ECC_BUF_LEN,
- GFP_KERNEL);
- if (!fmc2->ecc_buf)
+ nfc->ecc_buf = devm_kzalloc(nfc->dev, FMC2_MAX_ECC_BUF_LEN, GFP_KERNEL);
+ if (!nfc->ecc_buf)
return -ENOMEM;
- ret = sg_alloc_table(&fmc2->dma_data_sg, FMC2_MAX_SG, GFP_KERNEL);
+ ret = sg_alloc_table(&nfc->dma_data_sg, FMC2_MAX_SG, GFP_KERNEL);
if (ret)
return ret;
- init_completion(&fmc2->dma_data_complete);
- init_completion(&fmc2->dma_ecc_complete);
+ init_completion(&nfc->dma_data_complete);
+ init_completion(&nfc->dma_ecc_complete);
return 0;
err_dma:
if (ret == -ENODEV) {
- dev_warn(fmc2->dev,
+ dev_warn(nfc->dev,
"DMAs not defined in the DT, polling mode is used\n");
ret = 0;
}
@@ -1636,34 +1632,34 @@ static int stm32_fmc2_dma_setup(struct stm32_fmc2_nfc *fmc2)
return ret;
}
-static void stm32_fmc2_nand_callbacks_setup(struct nand_chip *chip)
+static void stm32_fmc2_nfc_nand_callbacks_setup(struct nand_chip *chip)
{
- struct stm32_fmc2_nfc *fmc2 = to_stm32_nfc(chip->controller);
+ struct stm32_fmc2_nfc *nfc = to_stm32_nfc(chip->controller);
/*
* Specific callbacks to read/write a page depending on
* the mode (polling/sequencer) and the algo used (Hamming, BCH).
*/
- if (fmc2->dma_tx_ch && fmc2->dma_rx_ch && fmc2->dma_ecc_ch) {
+ if (nfc->dma_tx_ch && nfc->dma_rx_ch && nfc->dma_ecc_ch) {
/* DMA => use sequencer mode callbacks */
- chip->ecc.correct = stm32_fmc2_sequencer_correct;
- chip->ecc.write_page = stm32_fmc2_sequencer_write_page;
- chip->ecc.read_page = stm32_fmc2_sequencer_read_page;
- chip->ecc.write_page_raw = stm32_fmc2_sequencer_write_page_raw;
- chip->ecc.read_page_raw = stm32_fmc2_sequencer_read_page_raw;
+ chip->ecc.correct = stm32_fmc2_nfc_seq_correct;
+ chip->ecc.write_page = stm32_fmc2_nfc_seq_write_page;
+ chip->ecc.read_page = stm32_fmc2_nfc_seq_read_page;
+ chip->ecc.write_page_raw = stm32_fmc2_nfc_seq_write_page_raw;
+ chip->ecc.read_page_raw = stm32_fmc2_nfc_seq_read_page_raw;
} else {
/* No DMA => use polling mode callbacks */
- chip->ecc.hwctl = stm32_fmc2_hwctl;
+ chip->ecc.hwctl = stm32_fmc2_nfc_hwctl;
if (chip->ecc.strength == FMC2_ECC_HAM) {
/* Hamming is used */
- chip->ecc.calculate = stm32_fmc2_ham_calculate;
- chip->ecc.correct = stm32_fmc2_ham_correct;
+ chip->ecc.calculate = stm32_fmc2_nfc_ham_calculate;
+ chip->ecc.correct = stm32_fmc2_nfc_ham_correct;
chip->ecc.options |= NAND_ECC_GENERIC_ERASED_CHECK;
} else {
/* BCH is used */
- chip->ecc.calculate = stm32_fmc2_bch_calculate;
- chip->ecc.correct = stm32_fmc2_bch_correct;
- chip->ecc.read_page = stm32_fmc2_read_page;
+ chip->ecc.calculate = stm32_fmc2_nfc_bch_calculate;
+ chip->ecc.correct = stm32_fmc2_nfc_bch_correct;
+ chip->ecc.read_page = stm32_fmc2_nfc_read_page;
}
}
@@ -1676,8 +1672,8 @@ static void stm32_fmc2_nand_callbacks_setup(struct nand_chip *chip)
chip->ecc.bytes = chip->options & NAND_BUSWIDTH_16 ? 8 : 7;
}
-static int stm32_fmc2_nand_ooblayout_ecc(struct mtd_info *mtd, int section,
- struct mtd_oob_region *oobregion)
+static int stm32_fmc2_nfc_ooblayout_ecc(struct mtd_info *mtd, int section,
+ struct mtd_oob_region *oobregion)
{
struct nand_chip *chip = mtd_to_nand(mtd);
struct nand_ecc_ctrl *ecc = &chip->ecc;
@@ -1691,8 +1687,8 @@ static int stm32_fmc2_nand_ooblayout_ecc(struct mtd_info *mtd, int section,
return 0;
}
-static int stm32_fmc2_nand_ooblayout_free(struct mtd_info *mtd, int section,
- struct mtd_oob_region *oobregion)
+static int stm32_fmc2_nfc_ooblayout_free(struct mtd_info *mtd, int section,
+ struct mtd_oob_region *oobregion)
{
struct nand_chip *chip = mtd_to_nand(mtd);
struct nand_ecc_ctrl *ecc = &chip->ecc;
@@ -1706,12 +1702,12 @@ static int stm32_fmc2_nand_ooblayout_free(struct mtd_info *mtd, int section,
return 0;
}
-static const struct mtd_ooblayout_ops stm32_fmc2_nand_ooblayout_ops = {
- .ecc = stm32_fmc2_nand_ooblayout_ecc,
- .free = stm32_fmc2_nand_ooblayout_free,
+static const struct mtd_ooblayout_ops stm32_fmc2_nfc_ooblayout_ops = {
+ .ecc = stm32_fmc2_nfc_ooblayout_ecc,
+ .free = stm32_fmc2_nfc_ooblayout_free,
};
-static int stm32_fmc2_calc_ecc_bytes(int step_size, int strength)
+static int stm32_fmc2_nfc_calc_ecc_bytes(int step_size, int strength)
{
/* Hamming */
if (strength == FMC2_ECC_HAM)
@@ -1725,13 +1721,13 @@ static int stm32_fmc2_calc_ecc_bytes(int step_size, int strength)
return 8;
}
-NAND_ECC_CAPS_SINGLE(stm32_fmc2_ecc_caps, stm32_fmc2_calc_ecc_bytes,
+NAND_ECC_CAPS_SINGLE(stm32_fmc2_nfc_ecc_caps, stm32_fmc2_nfc_calc_ecc_bytes,
FMC2_ECC_STEP_SIZE,
FMC2_ECC_HAM, FMC2_ECC_BCH4, FMC2_ECC_BCH8);
-static int stm32_fmc2_attach_chip(struct nand_chip *chip)
+static int stm32_fmc2_nfc_attach_chip(struct nand_chip *chip)
{
- struct stm32_fmc2_nfc *fmc2 = to_stm32_nfc(chip->controller);
+ struct stm32_fmc2_nfc *nfc = to_stm32_nfc(chip->controller);
struct mtd_info *mtd = nand_to_mtd(chip);
int ret;
@@ -1743,45 +1739,45 @@ static int stm32_fmc2_attach_chip(struct nand_chip *chip)
* ECC sector size = 512
*/
if (chip->ecc.mode != NAND_ECC_HW) {
- dev_err(fmc2->dev, "nand_ecc_mode is not well defined in the DT\n");
+ dev_err(nfc->dev, "nand_ecc_mode is not well defined in the DT\n");
return -EINVAL;
}
- ret = nand_ecc_choose_conf(chip, &stm32_fmc2_ecc_caps,
+ ret = nand_ecc_choose_conf(chip, &stm32_fmc2_nfc_ecc_caps,
mtd->oobsize - FMC2_BBM_LEN);
if (ret) {
- dev_err(fmc2->dev, "no valid ECC settings set\n");
+ dev_err(nfc->dev, "no valid ECC settings set\n");
return ret;
}
if (mtd->writesize / chip->ecc.size > FMC2_MAX_SG) {
- dev_err(fmc2->dev, "nand page size is not supported\n");
+ dev_err(nfc->dev, "nand page size is not supported\n");
return -EINVAL;
}
if (chip->bbt_options & NAND_BBT_USE_FLASH)
chip->bbt_options |= NAND_BBT_NO_OOB;
- stm32_fmc2_nand_callbacks_setup(chip);
+ stm32_fmc2_nfc_nand_callbacks_setup(chip);
- mtd_set_ooblayout(mtd, &stm32_fmc2_nand_ooblayout_ops);
+ mtd_set_ooblayout(mtd, &stm32_fmc2_nfc_ooblayout_ops);
if (chip->options & NAND_BUSWIDTH_16)
- stm32_fmc2_set_buswidth_16(fmc2, true);
+ stm32_fmc2_nfc_set_buswidth_16(nfc, true);
return 0;
}
-static const struct nand_controller_ops stm32_fmc2_nand_controller_ops = {
- .attach_chip = stm32_fmc2_attach_chip,
- .exec_op = stm32_fmc2_exec_op,
- .setup_data_interface = stm32_fmc2_setup_interface,
+static const struct nand_controller_ops stm32_fmc2_nfc_controller_ops = {
+ .attach_chip = stm32_fmc2_nfc_attach_chip,
+ .exec_op = stm32_fmc2_nfc_exec_op,
+ .setup_data_interface = stm32_fmc2_nfc_setup_interface,
};
-static int stm32_fmc2_parse_child(struct stm32_fmc2_nfc *fmc2,
- struct device_node *dn)
+static int stm32_fmc2_nfc_parse_child(struct stm32_fmc2_nfc *nfc,
+ struct device_node *dn)
{
- struct stm32_fmc2_nand *nand = &fmc2->nand;
+ struct stm32_fmc2_nand *nand = &nfc->nand;
u32 cs;
int ret, i;
@@ -1790,29 +1786,29 @@ static int stm32_fmc2_parse_child(struct stm32_fmc2_nfc *fmc2,
nand->ncs /= sizeof(u32);
if (!nand->ncs) {
- dev_err(fmc2->dev, "invalid reg property size\n");
+ dev_err(nfc->dev, "invalid reg property size\n");
return -EINVAL;
}
for (i = 0; i < nand->ncs; i++) {
ret = of_property_read_u32_index(dn, "reg", i, &cs);
if (ret) {
- dev_err(fmc2->dev, "could not retrieve reg property: %d\n",
+ dev_err(nfc->dev, "could not retrieve reg property: %d\n",
ret);
return ret;
}
if (cs > FMC2_MAX_CE) {
- dev_err(fmc2->dev, "invalid reg value: %d\n", cs);
+ dev_err(nfc->dev, "invalid reg value: %d\n", cs);
return -EINVAL;
}
- if (fmc2->cs_assigned & BIT(cs)) {
- dev_err(fmc2->dev, "cs already assigned: %d\n", cs);
+ if (nfc->cs_assigned & BIT(cs)) {
+ dev_err(nfc->dev, "cs already assigned: %d\n", cs);
return -EINVAL;
}
- fmc2->cs_assigned |= BIT(cs);
+ nfc->cs_assigned |= BIT(cs);
nand->cs_used[i] = cs;
}
@@ -1821,25 +1817,25 @@ static int stm32_fmc2_parse_child(struct stm32_fmc2_nfc *fmc2,
return 0;
}
-static int stm32_fmc2_parse_dt(struct stm32_fmc2_nfc *fmc2)
+static int stm32_fmc2_nfc_parse_dt(struct stm32_fmc2_nfc *nfc)
{
- struct device_node *dn = fmc2->dev->of_node;
+ struct device_node *dn = nfc->dev->of_node;
struct device_node *child;
int nchips = of_get_child_count(dn);
int ret = 0;
if (!nchips) {
- dev_err(fmc2->dev, "NAND chip not defined\n");
+ dev_err(nfc->dev, "NAND chip not defined\n");
return -EINVAL;
}
if (nchips > 1) {
- dev_err(fmc2->dev, "too many NAND chips defined\n");
+ dev_err(nfc->dev, "too many NAND chips defined\n");
return -EINVAL;
}
for_each_child_of_node(dn, child) {
- ret = stm32_fmc2_parse_child(fmc2, child);
+ ret = stm32_fmc2_nfc_parse_child(nfc, child);
if (ret < 0) {
of_node_put(child);
return ret;
@@ -1849,79 +1845,79 @@ static int stm32_fmc2_parse_dt(struct stm32_fmc2_nfc *fmc2)
return ret;
}
-static int stm32_fmc2_probe(struct platform_device *pdev)
+static int stm32_fmc2_nfc_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
struct reset_control *rstc;
- struct stm32_fmc2_nfc *fmc2;
+ struct stm32_fmc2_nfc *nfc;
struct stm32_fmc2_nand *nand;
struct resource *res;
struct mtd_info *mtd;
struct nand_chip *chip;
int chip_cs, mem_region, ret, irq;
- fmc2 = devm_kzalloc(dev, sizeof(*fmc2), GFP_KERNEL);
- if (!fmc2)
+ nfc = devm_kzalloc(dev, sizeof(*nfc), GFP_KERNEL);
+ if (!nfc)
return -ENOMEM;
- fmc2->dev = dev;
- nand_controller_init(&fmc2->base);
- fmc2->base.ops = &stm32_fmc2_nand_controller_ops;
+ nfc->dev = dev;
+ nand_controller_init(&nfc->base);
+ nfc->base.ops = &stm32_fmc2_nfc_controller_ops;
- ret = stm32_fmc2_parse_dt(fmc2);
+ ret = stm32_fmc2_nfc_parse_dt(nfc);
if (ret)
return ret;
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- fmc2->io_base = devm_ioremap_resource(dev, res);
- if (IS_ERR(fmc2->io_base))
- return PTR_ERR(fmc2->io_base);
+ nfc->io_base = devm_ioremap_resource(dev, res);
+ if (IS_ERR(nfc->io_base))
+ return PTR_ERR(nfc->io_base);
- fmc2->io_phys_addr = res->start;
+ nfc->io_phys_addr = res->start;
for (chip_cs = 0, mem_region = 1; chip_cs < FMC2_MAX_CE;
chip_cs++, mem_region += 3) {
- if (!(fmc2->cs_assigned & BIT(chip_cs)))
+ if (!(nfc->cs_assigned & BIT(chip_cs)))
continue;
res = platform_get_resource(pdev, IORESOURCE_MEM, mem_region);
- fmc2->data_base[chip_cs] = devm_ioremap_resource(dev, res);
- if (IS_ERR(fmc2->data_base[chip_cs]))
- return PTR_ERR(fmc2->data_base[chip_cs]);
+ nfc->data_base[chip_cs] = devm_ioremap_resource(dev, res);
+ if (IS_ERR(nfc->data_base[chip_cs]))
+ return PTR_ERR(nfc->data_base[chip_cs]);
- fmc2->data_phys_addr[chip_cs] = res->start;
+ nfc->data_phys_addr[chip_cs] = res->start;
res = platform_get_resource(pdev, IORESOURCE_MEM,
mem_region + 1);
- fmc2->cmd_base[chip_cs] = devm_ioremap_resource(dev, res);
- if (IS_ERR(fmc2->cmd_base[chip_cs]))
- return PTR_ERR(fmc2->cmd_base[chip_cs]);
+ nfc->cmd_base[chip_cs] = devm_ioremap_resource(dev, res);
+ if (IS_ERR(nfc->cmd_base[chip_cs]))
+ return PTR_ERR(nfc->cmd_base[chip_cs]);
res = platform_get_resource(pdev, IORESOURCE_MEM,
mem_region + 2);
- fmc2->addr_base[chip_cs] = devm_ioremap_resource(dev, res);
- if (IS_ERR(fmc2->addr_base[chip_cs]))
- return PTR_ERR(fmc2->addr_base[chip_cs]);
+ nfc->addr_base[chip_cs] = devm_ioremap_resource(dev, res);
+ if (IS_ERR(nfc->addr_base[chip_cs]))
+ return PTR_ERR(nfc->addr_base[chip_cs]);
}
irq = platform_get_irq(pdev, 0);
if (irq < 0)
return irq;
- ret = devm_request_irq(dev, irq, stm32_fmc2_irq, 0,
- dev_name(dev), fmc2);
+ ret = devm_request_irq(dev, irq, stm32_fmc2_nfc_irq, 0,
+ dev_name(dev), nfc);
if (ret) {
dev_err(dev, "failed to request irq\n");
return ret;
}
- init_completion(&fmc2->complete);
+ init_completion(&nfc->complete);
- fmc2->clk = devm_clk_get(dev, NULL);
- if (IS_ERR(fmc2->clk))
- return PTR_ERR(fmc2->clk);
+ nfc->clk = devm_clk_get(dev, NULL);
+ if (IS_ERR(nfc->clk))
+ return PTR_ERR(nfc->clk);
- ret = clk_prepare_enable(fmc2->clk);
+ ret = clk_prepare_enable(nfc->clk);
if (ret) {
dev_err(dev, "can not enable the clock\n");
return ret;
@@ -1937,18 +1933,18 @@ static int stm32_fmc2_probe(struct platform_device *pdev)
reset_control_deassert(rstc);
}
- ret = stm32_fmc2_dma_setup(fmc2);
+ ret = stm32_fmc2_nfc_dma_setup(nfc);
if (ret)
goto err_release_dma;
- stm32_fmc2_init(fmc2);
+ stm32_fmc2_nfc_init(nfc);
- nand = &fmc2->nand;
+ nand = &nfc->nand;
chip = &nand->chip;
mtd = nand_to_mtd(chip);
mtd->dev.parent = dev;
- chip->controller = &fmc2->base;
+ chip->controller = &nfc->base;
chip->options |= NAND_BUSWIDTH_AUTO | NAND_NO_SUBPAGE_WRITE |
NAND_USES_DMA;
@@ -1966,7 +1962,7 @@ static int stm32_fmc2_probe(struct platform_device *pdev)
if (ret)
goto err_nand_cleanup;
- platform_set_drvdata(pdev, fmc2);
+ platform_set_drvdata(pdev, nfc);
return 0;
@@ -1974,73 +1970,73 @@ static int stm32_fmc2_probe(struct platform_device *pdev)
nand_cleanup(chip);
err_release_dma:
- if (fmc2->dma_ecc_ch)
- dma_release_channel(fmc2->dma_ecc_ch);
- if (fmc2->dma_tx_ch)
- dma_release_channel(fmc2->dma_tx_ch);
- if (fmc2->dma_rx_ch)
- dma_release_channel(fmc2->dma_rx_ch);
+ if (nfc->dma_ecc_ch)
+ dma_release_channel(nfc->dma_ecc_ch);
+ if (nfc->dma_tx_ch)
+ dma_release_channel(nfc->dma_tx_ch);
+ if (nfc->dma_rx_ch)
+ dma_release_channel(nfc->dma_rx_ch);
- sg_free_table(&fmc2->dma_data_sg);
- sg_free_table(&fmc2->dma_ecc_sg);
+ sg_free_table(&nfc->dma_data_sg);
+ sg_free_table(&nfc->dma_ecc_sg);
err_clk_disable:
- clk_disable_unprepare(fmc2->clk);
+ clk_disable_unprepare(nfc->clk);
return ret;
}
-static int stm32_fmc2_remove(struct platform_device *pdev)
+static int stm32_fmc2_nfc_remove(struct platform_device *pdev)
{
- struct stm32_fmc2_nfc *fmc2 = platform_get_drvdata(pdev);
- struct stm32_fmc2_nand *nand = &fmc2->nand;
+ struct stm32_fmc2_nfc *nfc = platform_get_drvdata(pdev);
+ struct stm32_fmc2_nand *nand = &nfc->nand;
nand_release(&nand->chip);
- if (fmc2->dma_ecc_ch)
- dma_release_channel(fmc2->dma_ecc_ch);
- if (fmc2->dma_tx_ch)
- dma_release_channel(fmc2->dma_tx_ch);
- if (fmc2->dma_rx_ch)
- dma_release_channel(fmc2->dma_rx_ch);
+ if (nfc->dma_ecc_ch)
+ dma_release_channel(nfc->dma_ecc_ch);
+ if (nfc->dma_tx_ch)
+ dma_release_channel(nfc->dma_tx_ch);
+ if (nfc->dma_rx_ch)
+ dma_release_channel(nfc->dma_rx_ch);
- sg_free_table(&fmc2->dma_data_sg);
- sg_free_table(&fmc2->dma_ecc_sg);
+ sg_free_table(&nfc->dma_data_sg);
+ sg_free_table(&nfc->dma_ecc_sg);
- clk_disable_unprepare(fmc2->clk);
+ clk_disable_unprepare(nfc->clk);
return 0;
}
-static int __maybe_unused stm32_fmc2_suspend(struct device *dev)
+static int __maybe_unused stm32_fmc2_nfc_suspend(struct device *dev)
{
- struct stm32_fmc2_nfc *fmc2 = dev_get_drvdata(dev);
+ struct stm32_fmc2_nfc *nfc = dev_get_drvdata(dev);
- clk_disable_unprepare(fmc2->clk);
+ clk_disable_unprepare(nfc->clk);
pinctrl_pm_select_sleep_state(dev);
return 0;
}
-static int __maybe_unused stm32_fmc2_resume(struct device *dev)
+static int __maybe_unused stm32_fmc2_nfc_resume(struct device *dev)
{
- struct stm32_fmc2_nfc *fmc2 = dev_get_drvdata(dev);
- struct stm32_fmc2_nand *nand = &fmc2->nand;
+ struct stm32_fmc2_nfc *nfc = dev_get_drvdata(dev);
+ struct stm32_fmc2_nand *nand = &nfc->nand;
int chip_cs, ret;
pinctrl_pm_select_default_state(dev);
- ret = clk_prepare_enable(fmc2->clk);
+ ret = clk_prepare_enable(nfc->clk);
if (ret) {
dev_err(dev, "can not enable the clock\n");
return ret;
}
- stm32_fmc2_init(fmc2);
+ stm32_fmc2_nfc_init(nfc);
for (chip_cs = 0; chip_cs < FMC2_MAX_CE; chip_cs++) {
- if (!(fmc2->cs_assigned & BIT(chip_cs)))
+ if (!(nfc->cs_assigned & BIT(chip_cs)))
continue;
nand_reset(&nand->chip, chip_cs);
@@ -2049,27 +2045,27 @@ static int __maybe_unused stm32_fmc2_resume(struct device *dev)
return 0;
}
-static SIMPLE_DEV_PM_OPS(stm32_fmc2_pm_ops, stm32_fmc2_suspend,
- stm32_fmc2_resume);
+static SIMPLE_DEV_PM_OPS(stm32_fmc2_nfc_pm_ops, stm32_fmc2_nfc_suspend,
+ stm32_fmc2_nfc_resume);
-static const struct of_device_id stm32_fmc2_match[] = {
+static const struct of_device_id stm32_fmc2_nfc_match[] = {
{.compatible = "st,stm32mp15-fmc2"},
{}
};
-MODULE_DEVICE_TABLE(of, stm32_fmc2_match);
+MODULE_DEVICE_TABLE(of, stm32_fmc2_nfc_match);
-static struct platform_driver stm32_fmc2_driver = {
- .probe = stm32_fmc2_probe,
- .remove = stm32_fmc2_remove,
+static struct platform_driver stm32_fmc2_nfc_driver = {
+ .probe = stm32_fmc2_nfc_probe,
+ .remove = stm32_fmc2_nfc_remove,
.driver = {
- .name = "stm32_fmc2_nand",
- .of_match_table = stm32_fmc2_match,
- .pm = &stm32_fmc2_pm_ops,
+ .name = "stm32_fmc2_nfc",
+ .of_match_table = stm32_fmc2_nfc_match,
+ .pm = &stm32_fmc2_nfc_pm_ops,
},
};
-module_platform_driver(stm32_fmc2_driver);
+module_platform_driver(stm32_fmc2_nfc_driver);
-MODULE_ALIAS("platform:stm32_fmc2_nand");
+MODULE_ALIAS("platform:stm32_fmc2_nfc");
MODULE_AUTHOR("Christophe Kerello <christophe.kerello@...com>");
-MODULE_DESCRIPTION("STMicroelectronics STM32 FMC2 nand driver");
+MODULE_DESCRIPTION("STMicroelectronics STM32 FMC2 NFC driver");
MODULE_LICENSE("GPL v2");
--
1.9.1
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