[coreboot-gerrit] Patch set updated for coreboot: soc/intel/quark: Add script time delay support
Leroy P Leahy (leroy.p.leahy@intel.com)
gerrit at coreboot.org
Sat Apr 30 18:33:42 CEST 2016
Leroy P Leahy (leroy.p.leahy at intel.com) just uploaded a new patch set to gerrit, which you can find at https://review.coreboot.org/14555
-gerrit
commit 43f249e005603f6b0852ce425d92be029802ea89
Author: Lee Leahy <leroy.p.leahy at intel.com>
Date: Fri Apr 29 16:36:02 2016 -0700
soc/intel/quark: Add script time delay support
Add time delay support to the scripts.
TEST=Build and run on Galileo Gen2
Change-Id: I2c87977e2a2547e00769e59e1ee81fbbb5dff33f
Signed-off-by: Lee Leahy <leroy.p.leahy at intel.com>
---
src/soc/intel/quark/include/soc/reg_access.h | 6 ++++++
src/soc/intel/quark/reg_access.c | 8 ++++++++
2 files changed, 14 insertions(+)
diff --git a/src/soc/intel/quark/include/soc/reg_access.h b/src/soc/intel/quark/include/soc/reg_access.h
index ddca668..63624a3 100644
--- a/src/soc/intel/quark/include/soc/reg_access.h
+++ b/src/soc/intel/quark/include/soc/reg_access.h
@@ -16,6 +16,7 @@
#ifndef _QUARK_REG_ACCESS_H_
#define _QUARK_REG_ACCESS_H_
+#include <delay.h>
#include <fsp/util.h>
#include <reg_script.h>
#include <soc/IntelQNCConfig.h>
@@ -25,6 +26,7 @@ enum {
USB_PHY_REGS = 1,
SOC_UNIT_REGS,
RMU_TEMP_REGS,
+ TIME_DELAY,
};
enum {
@@ -78,6 +80,10 @@ enum {
#define REG_SOC_UNIT_XOR(reg_, value_) \
REG_SOC_UNIT_RXW(reg_, 0xffffffff, value_)
+/* Time delays */
+#define TIME_DELAY_USEC(value_) \
+ SOC_ACCESS(WRITE, 0, REG_SCRIPT_SIZE_32, 0, value_, 0, TIME_DELAY)
+
/* USB register access macros */
#define REG_USB_ACCESS(cmd_, reg_, mask_, value_, timeout_) \
SOC_ACCESS(cmd_, reg_, REG_SCRIPT_SIZE_32, mask_, value_, timeout_, \
diff --git a/src/soc/intel/quark/reg_access.c b/src/soc/intel/quark/reg_access.c
index 27c9c40..ee6b116 100644
--- a/src/soc/intel/quark/reg_access.c
+++ b/src/soc/intel/quark/reg_access.c
@@ -157,6 +157,14 @@ static void reg_write(struct reg_script_context *ctx)
reg_soc_unit_write(step->reg, (uint32_t)step->value);
break;
+ case TIME_DELAY:
+ if (display) {
+ printk(BIOS_INFO, "Delay %lld uSec\n", step->value);
+ car_set_var(reg_script_display, 0);
+ }
+ udelay(step->value);
+ break;
+
case USB_PHY_REGS:
if (display)
printk(BIOS_INFO, "USB PHY: ");
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