Hello Simon,
Am 21.10.2019 um 05:38 schrieb Simon Glass:
For apollolake we need to take the I2C bus controller out of reset before
using this. Add this functionality to the driver.
Signed-off-by: Simon Glass <s...@chromium.org>
---
Changes in v3:
- Add a weak function to avoid errors on other platforms
Changes in v2: None
drivers/i2c/dw_i2c_pci.c | 20 +++++++++++++++++++-
1 file changed, 19 insertions(+), 1 deletion(-)
diff --git a/drivers/i2c/dw_i2c_pci.c b/drivers/i2c/dw_i2c_pci.c
index 065c0aa5994..d6d93f08a56 100644
--- a/drivers/i2c/dw_i2c_pci.c
+++ b/drivers/i2c/dw_i2c_pci.c
@@ -6,8 +6,14 @@
*/
#include <dm.h>
+#include <asm/lpss.h>
#include "designware_i2c.h"
+enum {
+ VANILLA = 0,
+ INTEL_APL,
+};
+
/* BayTrail HCNT/LCNT/SDA hold time */
static struct dw_scl_sda_cfg byt_config = {
.ss_hcnt = 0x200,
@@ -17,6 +23,9 @@ static struct dw_scl_sda_cfg byt_config = {
.sda_hold = 0x6,
};
+/* Have a weak function for now - possibly should be a new uclass */
+void lpss_reset_release(void *regs);
+
static int designware_i2c_pci_probe(struct udevice *dev)
{
struct dw_i2c *priv = dev_get_priv(dev);
@@ -25,9 +34,12 @@ static int designware_i2c_pci_probe(struct udevice *dev)
priv->regs = (struct i2c_regs *)
dm_pci_map_bar(dev, PCI_BASE_ADDRESS_0, PCI_REGION_MEM);
if (IS_ENABLED(CONFIG_INTEL_BAYTRAIL))
- /* Use BayTrail specific timing values */
+ /* Use BayTrail-specific timing values */
Nitpick only: unrelated change.
Reviewed-by: Heiko Schocher <h...@denx.de>
[...]
bye,
Heiko
--
DENX Software Engineering GmbH, Managing Director: Wolfgang Denk
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: +49-8142-66989-52 Fax: +49-8142-66989-80 Email: h...@denx.de
_______________________________________________
U-Boot mailing list
U-Boot@lists.denx.de
https://lists.denx.de/listinfo/u-boot
