#include <common.h>
#include <asm/io.h>
#include <linux/errno.h>
-#include <linux/mtd/omap_elm.h>
#include <asm/arch/hardware.h>
+#include <dm.h>
+#include <linux/ioport.h>
+#include <linux/io.h>
+
+#include "omap_elm.h"
+
#define DRIVER_NAME "omap-elm"
#define ELM_DEFAULT_POLY (0)
;
}
+#ifdef ELM_BASE
/**
* elm_init - Initialize ELM module
*
elm_cfg = (struct elm *)ELM_BASE;
elm_reset();
}
+#endif
+
+#if CONFIG_IS_ENABLED(SYS_NAND_SELF_INIT)
+
+static int elm_probe(struct udevice *dev)
+{
+#ifndef ELM_BASE
+ struct resource res;
+
+ dev_read_resource(dev, 0, &res);
+ elm_cfg = devm_ioremap(dev, res.start, resource_size(&res));
+ elm_reset();
+#endif
+
+ return 0;
+}
+
+static const struct udevice_id elm_ids[] = {
+ { .compatible = "ti,am3352-elm" },
+ { .compatible = "ti,am64-elm" },
+ { }
+};
+
+U_BOOT_DRIVER(gpmc_elm) = {
+ .name = DRIVER_NAME,
+ .id = UCLASS_MTD,
+ .of_match = elm_ids,
+ .probe = elm_probe,
+};
+#endif /* CONFIG_SYS_NAND_SELF_INIT */
--- /dev/null
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * (C) Copyright 2010-2011 Texas Instruments, <www.ti.com>
+ * Mansoor Ahamed <mansoor.ahamed@ti.com>
+ *
+ * Derived from work done by Rohit Choraria <rohitkc@ti.com> for omap3
+ */
+#ifndef __ASM_ARCH_ELM_H
+#define __ASM_ARCH_ELM_H
+/*
+ * ELM Module Registers
+ */
+
+/* ELM registers bit fields */
+#define ELM_SYSCONFIG_SOFTRESET_MASK (0x2)
+#define ELM_SYSCONFIG_SOFTRESET (0x2)
+#define ELM_SYSSTATUS_RESETDONE_MASK (0x1)
+#define ELM_SYSSTATUS_RESETDONE (0x1)
+#define ELM_LOCATION_CONFIG_ECC_BCH_LEVEL_MASK (0x3)
+#define ELM_LOCATION_CONFIG_ECC_SIZE_MASK (0x7FF0000)
+#define ELM_LOCATION_CONFIG_ECC_SIZE_POS (16)
+#define ELM_SYNDROME_FRAGMENT_6_SYNDROME_VALID (0x00010000)
+#define ELM_LOCATION_STATUS_ECC_CORRECTABLE_MASK (0x100)
+#define ELM_LOCATION_STATUS_ECC_NB_ERRORS_MASK (0x1F)
+
+#define ELM_MAX_CHANNELS 8
+#define ELM_MAX_ERROR_COUNT 16
+
+#ifndef __ASSEMBLY__
+
+enum bch_level {
+ BCH_4_BIT = 0,
+ BCH_8_BIT,
+ BCH_16_BIT
+};
+
+
+/* BCH syndrome registers */
+struct syndrome {
+ u32 syndrome_fragment_x[7]; /* 0x400, 0x404.... 0x418 */
+ u8 res1[36]; /* 0x41c */
+};
+
+/* BCH error status & location register */
+struct location {
+ u32 location_status; /* 0x800 */
+ u8 res1[124]; /* 0x804 */
+ u32 error_location_x[ELM_MAX_ERROR_COUNT]; /* 0x880, 0x980, .. */
+ u8 res2[64]; /* 0x8c0 */
+};
+
+/* BCH ELM register map - do not try to allocate memmory for this structure.
+ * We have used plenty of reserved variables to fill the slots in the ELM
+ * register memory map.
+ * Directly initialize the struct pointer to ELM base address.
+ */
+struct elm {
+ u32 rev; /* 0x000 */
+ u8 res1[12]; /* 0x004 */
+ u32 sysconfig; /* 0x010 */
+ u32 sysstatus; /* 0x014 */
+ u32 irqstatus; /* 0x018 */
+ u32 irqenable; /* 0x01c */
+ u32 location_config; /* 0x020 */
+ u8 res2[92]; /* 0x024 */
+ u32 page_ctrl; /* 0x080 */
+ u8 res3[892]; /* 0x084 */
+ struct syndrome syndrome_fragments[ELM_MAX_CHANNELS]; /* 0x400,0x420 */
+ u8 res4[512]; /* 0x600 */
+ struct location error_location[ELM_MAX_CHANNELS]; /* 0x800,0x900 ... */
+};
+
+int elm_check_error(u8 *syndrome, enum bch_level bch_type, u32 *error_count,
+ u32 *error_locations);
+int elm_config(enum bch_level level);
+void elm_reset(void);
+#ifdef ELM_BASE
+void elm_init(void);
+#else
+static inline void elm_init(void)
+{
+}
+#endif
+#endif /* __ASSEMBLY__ */
+#endif /* __ASM_ARCH_ELM_H */
#include <linux/bch.h>
#include <linux/compiler.h>
#include <nand.h>
-#include <linux/mtd/omap_elm.h>
+
+#include "omap_elm.h"
#ifndef GPMC_MAX_CS
#define GPMC_MAX_CS 4
struct udevice *dev;
int ret;
+#ifdef CONFIG_NAND_OMAP_ELM
+ ret = uclass_get_device_by_driver(UCLASS_MTD,
+ DM_DRIVER_GET(gpmc_elm), &dev);
+ if (ret && ret != -ENODEV) {
+ pr_err("%s: Failed to get ELM device: %d\n", __func__, ret);
+ return;
+ }
+#endif
+
ret = uclass_get_device_by_driver(UCLASS_MTD,
DM_DRIVER_GET(gpmc_nand), &dev);
if (ret && ret != -ENODEV)
+++ /dev/null
-/* SPDX-License-Identifier: GPL-2.0+ */
-/*
- * (C) Copyright 2010-2011 Texas Instruments, <www.ti.com>
- * Mansoor Ahamed <mansoor.ahamed@ti.com>
- *
- * Derived from work done by Rohit Choraria <rohitkc@ti.com> for omap3
- */
-#ifndef __ASM_ARCH_ELM_H
-#define __ASM_ARCH_ELM_H
-/*
- * ELM Module Registers
- */
-
-/* ELM registers bit fields */
-#define ELM_SYSCONFIG_SOFTRESET_MASK (0x2)
-#define ELM_SYSCONFIG_SOFTRESET (0x2)
-#define ELM_SYSSTATUS_RESETDONE_MASK (0x1)
-#define ELM_SYSSTATUS_RESETDONE (0x1)
-#define ELM_LOCATION_CONFIG_ECC_BCH_LEVEL_MASK (0x3)
-#define ELM_LOCATION_CONFIG_ECC_SIZE_MASK (0x7FF0000)
-#define ELM_LOCATION_CONFIG_ECC_SIZE_POS (16)
-#define ELM_SYNDROME_FRAGMENT_6_SYNDROME_VALID (0x00010000)
-#define ELM_LOCATION_STATUS_ECC_CORRECTABLE_MASK (0x100)
-#define ELM_LOCATION_STATUS_ECC_NB_ERRORS_MASK (0x1F)
-
-#define ELM_MAX_CHANNELS 8
-#define ELM_MAX_ERROR_COUNT 16
-
-#ifndef __ASSEMBLY__
-
-enum bch_level {
- BCH_4_BIT = 0,
- BCH_8_BIT,
- BCH_16_BIT
-};
-
-
-/* BCH syndrome registers */
-struct syndrome {
- u32 syndrome_fragment_x[7]; /* 0x400, 0x404.... 0x418 */
- u8 res1[36]; /* 0x41c */
-};
-
-/* BCH error status & location register */
-struct location {
- u32 location_status; /* 0x800 */
- u8 res1[124]; /* 0x804 */
- u32 error_location_x[ELM_MAX_ERROR_COUNT]; /* 0x880, 0x980, .. */
- u8 res2[64]; /* 0x8c0 */
-};
-
-/* BCH ELM register map - do not try to allocate memmory for this structure.
- * We have used plenty of reserved variables to fill the slots in the ELM
- * register memory map.
- * Directly initialize the struct pointer to ELM base address.
- */
-struct elm {
- u32 rev; /* 0x000 */
- u8 res1[12]; /* 0x004 */
- u32 sysconfig; /* 0x010 */
- u32 sysstatus; /* 0x014 */
- u32 irqstatus; /* 0x018 */
- u32 irqenable; /* 0x01c */
- u32 location_config; /* 0x020 */
- u8 res2[92]; /* 0x024 */
- u32 page_ctrl; /* 0x080 */
- u8 res3[892]; /* 0x084 */
- struct syndrome syndrome_fragments[ELM_MAX_CHANNELS]; /* 0x400,0x420 */
- u8 res4[512]; /* 0x600 */
- struct location error_location[ELM_MAX_CHANNELS]; /* 0x800,0x900 ... */
-};
-
-int elm_check_error(u8 *syndrome, enum bch_level bch_type, u32 *error_count,
- u32 *error_locations);
-int elm_config(enum bch_level level);
-void elm_reset(void);
-void elm_init(void);
-#endif /* __ASSEMBLY__ */
-#endif /* __ASM_ARCH_ELM_H */
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