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| author | Simon Glass <sjg@chromium.org> | 2016-05-01 11:36:31 -0600 |
|---|---|---|
| committer | Simon Glass <sjg@chromium.org> | 2016-05-17 09:54:43 -0600 |
| commit | 4560ee470f021cfc3f6be37890c1391731c26f38 (patch) | |
| tree | 35267cbb4f5fcb55b44878bf96297350d30529f1 /drivers | |
| parent | a0ff24c4672654fa6d13498e3a3367935bdc7334 (diff) | |
| download | u-boot-imx-4560ee470f021cfc3f6be37890c1391731c26f38.zip u-boot-imx-4560ee470f021cfc3f6be37890c1391731c26f38.tar.gz u-boot-imx-4560ee470f021cfc3f6be37890c1391731c26f38.tar.bz2 | |
dm: systemace: Add driver-mode block-device support
Add support for CONFIG_BLK to the systemace driver.
Signed-off-by: Simon Glass <sjg@chromium.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/block/systemace.c | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/drivers/block/systemace.c b/drivers/block/systemace.c index eeba7f0..9392bea 100644 --- a/drivers/block/systemace.c +++ b/drivers/block/systemace.c @@ -27,6 +27,7 @@ #include <common.h> #include <command.h> +#include <dm.h> #include <part.h> #include <asm/io.h> @@ -68,7 +69,9 @@ static u16 ace_readw(unsigned off) return in16(base + off); } +#ifndef CONFIG_BLK static struct blk_desc systemace_dev = { 0 }; +#endif static int get_cf_lock(void) { @@ -104,9 +107,14 @@ static void release_cf_lock(void) * the dev_desc) to read blocks of data. The return value is the * number of blocks read. A zero return indicates an error. */ +#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; @@ -225,6 +233,41 @@ static unsigned long systemace_read(struct blk_desc *block_dev, return blkcnt; } +#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 @@ -257,3 +300,4 @@ U_BOOT_LEGACY_BLK(systemace) = { .max_devs = 1, .get_dev = systemace_get_dev, }; +#endif |