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authorSimon Glass <sjg@chromium.org>2016-05-01 11:36:11 -0600
committerSimon Glass <sjg@chromium.org>2016-05-17 09:54:43 -0600
commitd97dc8a0e6d38d11848ee78669639324edc0df01 (patch)
treea0053e748cc2d8fddf9ca615033547c81ca43930 /common
parente9be1ee75ed27c4281cad5168b6c51d26b2e8a15 (diff)
dm: sata: Separate the non-command code into its own file
At present the SATA command code includes both the command-processing code and the core SATA functions and data structures. Separate the latter into its own file, adding functions as needed to avoid the command code accessing data structures directly. With this commit: - All CONFIG option are referenced from the non-command code - The concept of a 'current SATA device' is confined to the command code This will make it easier to convert this code to driver model. Signed-off-by: Simon Glass <sjg@chromium.org>
Diffstat (limited to 'common')
-rw-r--r--common/Makefile1
-rw-r--r--common/sata.c86
2 files changed, 87 insertions, 0 deletions
diff --git a/common/Makefile b/common/Makefile
index 1df5add3256..f9b26b7bbe4 100644
--- a/common/Makefile
+++ b/common/Makefile
@@ -84,6 +84,7 @@ obj-$(CONFIG_LCD_ROTATION) += lcd_console_rotation.o
obj-$(CONFIG_LCD_DT_SIMPLEFB) += lcd_simplefb.o
obj-$(CONFIG_LYNXKDI) += lynxkdi.o
obj-$(CONFIG_MENU) += menu.o
+obj-$(CONFIG_CMD_SATA) += sata.o
obj-$(CONFIG_SCSI) += scsi.o
obj-$(CONFIG_UPDATE_TFTP) += update.o
obj-$(CONFIG_DFU_TFTP) += update.o
diff --git a/common/sata.c b/common/sata.c
new file mode 100644
index 00000000000..1d52fcb2dcb
--- /dev/null
+++ b/common/sata.c
@@ -0,0 +1,86 @@
+/*
+ * Copyright (C) 2000-2005, DENX Software Engineering
+ * Wolfgang Denk <wd@denx.de>
+ * Copyright (C) Procsys. All rights reserved.
+ * Mushtaq Khan <mushtaq_k@procsys.com>
+ * <mushtaqk_921@yahoo.co.in>
+ * Copyright (C) 2008 Freescale Semiconductor, Inc.
+ * Dave Liu <daveliu@freescale.com>
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <common.h>
+#include <sata.h>
+
+struct blk_desc sata_dev_desc[CONFIG_SYS_SATA_MAX_DEVICE];
+
+#ifdef CONFIG_PARTITIONS
+struct blk_desc *sata_get_dev(int dev)
+{
+ return (dev < CONFIG_SYS_SATA_MAX_DEVICE) ? &sata_dev_desc[dev] : NULL;
+}
+#endif
+
+static unsigned long sata_bread(struct blk_desc *block_dev, lbaint_t start,
+ lbaint_t blkcnt, void *dst)
+{
+ return sata_read(block_dev->devnum, start, blkcnt, dst);
+}
+
+static unsigned long sata_bwrite(struct blk_desc *block_dev, lbaint_t start,
+ lbaint_t blkcnt, const void *buffer)
+{
+ return sata_write(block_dev->devnum, start, blkcnt, buffer);
+}
+
+int __sata_initialize(void)
+{
+ int rc;
+ int i;
+
+ for (i = 0; i < CONFIG_SYS_SATA_MAX_DEVICE; i++) {
+ memset(&sata_dev_desc[i], 0, sizeof(struct blk_desc));
+ sata_dev_desc[i].if_type = IF_TYPE_SATA;
+ sata_dev_desc[i].devnum = i;
+ sata_dev_desc[i].part_type = PART_TYPE_UNKNOWN;
+ sata_dev_desc[i].type = DEV_TYPE_HARDDISK;
+ sata_dev_desc[i].lba = 0;
+ sata_dev_desc[i].blksz = 512;
+ sata_dev_desc[i].log2blksz = LOG2(sata_dev_desc[i].blksz);
+ sata_dev_desc[i].block_read = sata_bread;
+ sata_dev_desc[i].block_write = sata_bwrite;
+
+ rc = init_sata(i);
+ if (!rc) {
+ rc = scan_sata(i);
+ if (!rc && sata_dev_desc[i].lba > 0 &&
+ sata_dev_desc[i].blksz > 0)
+ part_init(&sata_dev_desc[i]);
+ }
+ }
+
+ return rc;
+}
+int sata_initialize(void) __attribute__((weak, alias("__sata_initialize")));
+
+__weak int __sata_stop(void)
+{
+ int i, err = 0;
+
+ for (i = 0; i < CONFIG_SYS_SATA_MAX_DEVICE; i++)
+ err |= reset_sata(i);
+
+ if (err)
+ printf("Could not reset some SATA devices\n");
+
+ return err;
+}
+int sata_stop(void) __attribute__((weak, alias("__sata_stop")));
+
+U_BOOT_LEGACY_BLK(sata) = {
+ .if_typename = "sata",
+ .if_type = IF_TYPE_SATA,
+ .max_devs = CONFIG_SYS_SATA_MAX_DEVICE,
+ .desc = sata_dev_desc,
+};