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dm: imx: cm_fx6: Support driver model for SATA

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Add support for using driver model for SATA with the cm_fx6 board. The old
code remains for now to permit testing.

Signed-off-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Simon Glass 2017-07-29 11:35:25 -06:00 committed by Jaehoon Chung
parent 653282b567
commit 8d331e38e0
1 changed files with 69 additions and 0 deletions
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69
board/compulab/cm_fx6/cm_fx6.c
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@ -9,7 +9,9 @@
*/
#include <common.h>
#include <ahci.h>
#include <dm.h>
#include <dwc_ahsata.h>
#include <fsl_esdhc.h>
#include <miiphy.h>
#include <mtd_node.h>
@ -29,6 +31,7 @@
#include <asm/io.h>
#include <asm/gpio.h>
#include <dm/platform_data/serial_mxc.h>
#include <dm/device-internal.h>
#include <jffs2/load_kernel.h>
#include "common.h"
#include "../common/eeprom.h"
@ -206,6 +209,8 @@ static int cm_fx6_setup_issd(void)
}
#define CM_FX6_SATA_INIT_RETRIES 10
# if !CONFIG_IS_ENABLED(AHCI)
int sata_initialize(void)
{
int err, i;
@ -246,6 +251,7 @@ int sata_stop(void)
return 0;
}
# endif
#else
static int cm_fx6_setup_issd(void) { return 0; }
#endif
@ -757,3 +763,66 @@ U_BOOT_DEVICE(cm_fx6_serial) = {
.name = "serial_mxc",
.platdata = &cm_fx6_mxc_serial_plat,
};
#if CONFIG_IS_ENABLED(AHCI)
static int sata_imx_probe(struct udevice *dev)
{
int i, err;
/* Make sure this gpio has logical 0 value */
gpio_direction_output(CM_FX6_SATA_PWLOSS_INT, 0);
udelay(100);
cm_fx6_sata_power(1);
for (i = 0; i < CM_FX6_SATA_INIT_RETRIES; i++) {
err = setup_sata();
if (err) {
printf("SATA setup failed: %d\n", err);
return err;
}
udelay(100);
err = dwc_ahsata_probe(dev);
if (!err)
break;
/* There is no device on the SATA port */
if (sata_dm_port_status(0, 0) == 0)
break;
/* There's a device, but link not established. Retry */
device_remove(dev, DM_REMOVE_NORMAL);
}
return 0;
}
static int sata_imx_remove(struct udevice *dev)
{
cm_fx6_sata_power(0);
mdelay(250);
return 0;
}
struct ahci_ops sata_imx_ops = {
.port_status = dwc_ahsata_port_status,
.reset = dwc_ahsata_bus_reset,
.scan = dwc_ahsata_scan,
};
static const struct udevice_id sata_imx_ids[] = {
{ .compatible = "fsl,imx6q-ahci" },
{ }
};
U_BOOT_DRIVER(sata_imx) = {
.name = "dwc_ahci",
.id = UCLASS_AHCI,
.of_match = sata_imx_ids,
.ops = &sata_imx_ops,
.probe = sata_imx_probe,
.remove = sata_imx_remove, /* reset bus to stop it */
};
#endif /* AHCI */