From: Rosen Penev <rosenp@gmail.com>
Date: Tue, 2 Jun 2026 02:07:23 +0000 (-0700)
Subject: mtd: rawnand: ndfc: use ioread32be/iowrite32be and allow COMPILE_TEST
X-Git-Url: http://git.ipfire.org/gitweb/?a=commitdiff_plain;h=4f2692a5383e4bdd43ae940cda012360f7217a2d;p=thirdparty%2Fkernel%2Flinux.git

mtd: rawnand: ndfc: use ioread32be/iowrite32be and allow COMPILE_TEST

Replace ppc4xx-specific in_be32/out_be32 with generic ioread32be/
iowrite32be to make the driver portable. Add COMPILE_TEST dependency
to get build coverage on non-ppc4xx architectures.

While at it, replace 4xx with 44x. The latter was removed a while ago
and is only kept for compatibility.

Assisted-by: opencode:big-pickle
Signed-off-by: Rosen Penev <rosenp@gmail.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
---

diff --git a/drivers/mtd/nand/raw/Kconfig b/drivers/mtd/nand/raw/Kconfig
index 7408f34f0c68..ee01b845694d 100644
--- a/drivers/mtd/nand/raw/Kconfig
+++ b/drivers/mtd/nand/raw/Kconfig
@@ -71,7 +71,7 @@ config MTD_NAND_AU1550
 
 config MTD_NAND_NDFC
 	tristate "IBM/MCC 4xx NAND controller"
-	depends on 4xx
+	depends on 44x || COMPILE_TEST
 	select MTD_NAND_ECC_SW_HAMMING
 	select MTD_NAND_ECC_SW_HAMMING_SMC
 	help
diff --git a/drivers/mtd/nand/raw/ndfc.c b/drivers/mtd/nand/raw/ndfc.c
index 7ad8bc04be1a..a937ca3eeff5 100644
--- a/drivers/mtd/nand/raw/ndfc.c
+++ b/drivers/mtd/nand/raw/ndfc.c
@@ -44,13 +44,13 @@ static void ndfc_select_chip(struct nand_chip *nchip, int chip)
 	uint32_t ccr;
 	struct ndfc_controller *ndfc = nand_get_controller_data(nchip);
 
-	ccr = in_be32(ndfc->ndfcbase + NDFC_CCR);
+	ccr = ioread32be(ndfc->ndfcbase + NDFC_CCR);
 	if (chip >= 0) {
 		ccr &= ~NDFC_CCR_BS_MASK;
 		ccr |= NDFC_CCR_BS(chip + ndfc->chip_select);
 	} else
 		ccr |= NDFC_CCR_RESET_CE;
-	out_be32(ndfc->ndfcbase + NDFC_CCR, ccr);
+	iowrite32be(ccr, ndfc->ndfcbase + NDFC_CCR);
 }
 
 static void ndfc_hwcontrol(struct nand_chip *chip, int cmd, unsigned int ctrl)
@@ -70,7 +70,7 @@ static int ndfc_ready(struct nand_chip *chip)
 {
 	struct ndfc_controller *ndfc = nand_get_controller_data(chip);
 
-	return in_be32(ndfc->ndfcbase + NDFC_STAT) & NDFC_STAT_IS_READY;
+	return ioread32be(ndfc->ndfcbase + NDFC_STAT) & NDFC_STAT_IS_READY;
 }
 
 static void ndfc_enable_hwecc(struct nand_chip *chip, int mode)
@@ -78,9 +78,9 @@ static void ndfc_enable_hwecc(struct nand_chip *chip, int mode)
 	uint32_t ccr;
 	struct ndfc_controller *ndfc = nand_get_controller_data(chip);
 
-	ccr = in_be32(ndfc->ndfcbase + NDFC_CCR);
+	ccr = ioread32be(ndfc->ndfcbase + NDFC_CCR);
 	ccr |= NDFC_CCR_RESET_ECC;
-	out_be32(ndfc->ndfcbase + NDFC_CCR, ccr);
+	iowrite32be(ccr, ndfc->ndfcbase + NDFC_CCR);
 	wmb();
 }
 
@@ -92,7 +92,7 @@ static int ndfc_calculate_ecc(struct nand_chip *chip,
 	uint8_t *p = (uint8_t *)&ecc;
 
 	wmb();
-	ecc = in_be32(ndfc->ndfcbase + NDFC_ECC);
+	ecc = ioread32be(ndfc->ndfcbase + NDFC_ECC);
 	/* The NDFC uses Smart Media (SMC) bytes order */
 	ecc_code[0] = p[1];
 	ecc_code[1] = p[2];
@@ -114,7 +114,7 @@ static void ndfc_read_buf(struct nand_chip *chip, uint8_t *buf, int len)
 	uint32_t *p = (uint32_t *) buf;
 
 	for(;len > 0; len -= 4)
-		*p++ = in_be32(ndfc->ndfcbase + NDFC_DATA);
+		*p++ = ioread32be(ndfc->ndfcbase + NDFC_DATA);
 }
 
 static void ndfc_write_buf(struct nand_chip *chip, const uint8_t *buf, int len)
@@ -123,7 +123,7 @@ static void ndfc_write_buf(struct nand_chip *chip, const uint8_t *buf, int len)
 	uint32_t *p = (uint32_t *) buf;
 
 	for(;len > 0; len -= 4)
-		out_be32(ndfc->ndfcbase + NDFC_DATA, *p++);
+		iowrite32be(*p++, ndfc->ndfcbase + NDFC_DATA);
 }
 
 /*
@@ -223,13 +223,13 @@ static int ndfc_probe(struct platform_device *ofdev)
 	if (reg)
 		ccr |= be32_to_cpup(reg);
 
-	out_be32(ndfc->ndfcbase + NDFC_CCR, ccr);
+	iowrite32be(ccr, ndfc->ndfcbase + NDFC_CCR);
 
 	/* Set the bank settings if given */
 	reg = of_get_property(ofdev->dev.of_node, "bank-settings", NULL);
 	if (reg) {
 		int offset = NDFC_BCFG0 + (ndfc->chip_select << 2);
-		out_be32(ndfc->ndfcbase + offset, be32_to_cpup(reg));
+		iowrite32be(be32_to_cpup(reg), ndfc->ndfcbase + offset);
 	}
 
 	err = ndfc_chip_init(ndfc, ofdev->dev.of_node);