* Copyright (c) 2004 Picture Elements, Inc.
* Stephen Williams (XXXXXXXXXXXXXXXX)
*
- * This source code is free software; you can redistribute it
- * and/or modify it in source code form under the terms of the GNU
- * General Public License as published by the Free Software
- * Foundation; either version 2 of the License, or (at your option)
- * any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
+ * SPDX-License-Identifier: GPL-2.0+
*/
/*
* The Xilinx SystemACE chip support is activated by defining
- * CONFIG_SYSTEMACE to turn on support, and CFG_SYSTEMACE_BASE
+ * CONFIG_SYSTEMACE to turn on support, and CONFIG_SYS_SYSTEMACE_BASE
* to set the base address of the device. This code currently
* assumes that the chip is connected via a byte-wide bus.
*
#include <common.h>
#include <command.h>
-#include <systemace.h>
+#include <dm.h>
#include <part.h>
#include <asm/io.h>
-#ifdef CONFIG_SYSTEMACE
-
/*
* The ace_readw and writew functions read/write 16bit words, but the
* offset value is the BYTE offset as most used in the Xilinx
- * datasheet for the SystemACE chip. The CFG_SYSTEMACE_BASE is defined
+ * datasheet for the SystemACE chip. The CONFIG_SYS_SYSTEMACE_BASE is defined
* to be the base address for the chip, usually in the local
* peripheral bus.
*/
-#if (CFG_SYSTEMACE_WIDTH == 8)
+
+static u32 base = CONFIG_SYS_SYSTEMACE_BASE;
+static u32 width = CONFIG_SYS_SYSTEMACE_WIDTH;
+
+static void ace_writew(u16 val, unsigned off)
+{
+ if (width == 8) {
#if !defined(__BIG_ENDIAN)
-#define ace_readw(off) ((readb(CFG_SYSTEMACE_BASE+off)<<8) | \
- (readb(CFG_SYSTEMACE_BASE+off+1)))
-#define ace_writew(val, off) {writeb(val>>8, CFG_SYSTEMACE_BASE+off); \
- writeb(val, CFG_SYSTEMACE_BASE+off+1);}
+ writeb(val >> 8, base + off);
+ writeb(val, base + off + 1);
#else
-#define ace_readw(off) ((readb(CFG_SYSTEMACE_BASE+off)) | \
- (readb(CFG_SYSTEMACE_BASE+off+1)<<8))
-#define ace_writew(val, off) {writeb(val, CFG_SYSTEMACE_BASE+off); \
- writeb(val>>8, CFG_SYSTEMACE_BASE+off+1);}
+ writeb(val, base + off);
+ writeb(val >> 8, base + off + 1);
#endif
+ } else
+ out16(base + off, val);
+}
+
+static u16 ace_readw(unsigned off)
+{
+ if (width == 8) {
+#if !defined(__BIG_ENDIAN)
+ return (readb(base + off) << 8) | readb(base + off + 1);
#else
-#define ace_readw(off) (in16(CFG_SYSTEMACE_BASE+off))
-#define ace_writew(val, off) (out16(CFG_SYSTEMACE_BASE+off,val))
+ return readb(base + off) | (readb(base + off + 1) << 8);
#endif
+ }
-/* */
-
-static unsigned long systemace_read(int dev, unsigned long start,
- unsigned long blkcnt, void *buffer);
+ return in16(base + off);
+}
-static block_dev_desc_t systemace_dev = { 0 };
+#ifndef CONFIG_BLK
+static struct blk_desc systemace_dev = { 0 };
+#endif
static int get_cf_lock(void)
{
ace_writew((val & 0xffff), 0x18);
}
-block_dev_desc_t *systemace_get_dev(int dev)
-{
- /* The first time through this, the systemace_dev object is
- not yet initialized. In that case, fill it in. */
- if (systemace_dev.blksz == 0) {
- systemace_dev.if_type = IF_TYPE_UNKNOWN;
- systemace_dev.dev = 0;
- systemace_dev.part_type = PART_TYPE_UNKNOWN;
- systemace_dev.type = DEV_TYPE_HARDDISK;
- systemace_dev.blksz = 512;
- systemace_dev.removable = 1;
- systemace_dev.block_read = systemace_read;
-
- /*
- * Ensure the correct bus mode (8/16 bits) gets enabled
- */
- ace_writew(CFG_SYSTEMACE_WIDTH == 8 ? 0 : 0x0001, 0);
-
- init_part(&systemace_dev);
-
- }
-
- return &systemace_dev;
-}
-
/*
* This function is called (by dereferencing the block_read pointer in
* the dev_desc) to read blocks of data. The return value is the
* number of blocks read. A zero return indicates an error.
*/
-static unsigned long systemace_read(int dev, unsigned long start,
- unsigned long blkcnt, void *buffer)
+#ifdef CONFIG_BLK
+static unsigned long systemace_read(struct udevice *dev, unsigned long start,
+ lbaint_t blkcnt, void *buffer)
+#else
+static unsigned long systemace_read(struct blk_desc *block_dev,
+ unsigned long start, lbaint_t blkcnt,
+ void *buffer)
+#endif
{
int retry;
unsigned blk_countdown;
return blkcnt;
}
-#endif /* CONFIG_SYSTEMACE */
+
+#ifdef CONFIG_BLK
+static int systemace_bind(struct udevice *dev)
+{
+ struct blk_desc *bdesc;
+ struct udevice *bdev;
+ int ret;
+
+ ret = blk_create_devicef(dev, "systemace_blk", "blk", IF_TYPE_SYSTEMACE,
+ -1, 512, 0, &bdev);
+ if (ret) {
+ debug("Cannot create block device\n");
+ return ret;
+ }
+ bdesc = dev_get_uclass_platdata(bdev);
+ bdesc->removable = 1;
+ bdesc->part_type = PART_TYPE_UNKNOWN;
+ bdesc->log2blksz = LOG2(bdesc->blksz);
+
+ /* Ensure the correct bus mode (8/16 bits) gets enabled */
+ ace_writew(width == 8 ? 0 : 0x0001, 0);
+
+ return 0;
+}
+
+static const struct blk_ops systemace_blk_ops = {
+ .read = systemace_read,
+};
+
+U_BOOT_DRIVER(systemace_blk) = {
+ .name = "systemace_blk",
+ .id = UCLASS_BLK,
+ .ops = &systemace_blk_ops,
+ .bind = systemace_bind,
+};
+#else
+static int systemace_get_dev(int dev, struct blk_desc **descp)
+{
+ /* The first time through this, the systemace_dev object is
+ not yet initialized. In that case, fill it in. */
+ if (systemace_dev.blksz == 0) {
+ systemace_dev.if_type = IF_TYPE_UNKNOWN;
+ systemace_dev.devnum = 0;
+ systemace_dev.part_type = PART_TYPE_UNKNOWN;
+ systemace_dev.type = DEV_TYPE_HARDDISK;
+ systemace_dev.blksz = 512;
+ systemace_dev.log2blksz = LOG2(systemace_dev.blksz);
+ systemace_dev.removable = 1;
+ systemace_dev.block_read = systemace_read;
+
+ /*
+ * Ensure the correct bus mode (8/16 bits) gets enabled
+ */
+ ace_writew(width == 8 ? 0 : 0x0001, 0);
+
+ part_init(&systemace_dev);
+ }
+ *descp = &systemace_dev;
+
+ return 0;
+}
+
+U_BOOT_LEGACY_BLK(systemace) = {
+ .if_typename = "ace",
+ .if_type = IF_TYPE_SYSTEMACE,
+ .max_devs = 1,
+ .get_dev = systemace_get_dev,
+};
+#endif
projects / u-boot / blobdiff