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@intel.com> Reviewed-on: https://review.coreboot.org/14555 Tested-by: build bot (Jenkins) Reviewed-by: Martin Roth <martinroth@google.com>
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@ -16,6 +16,7 @@
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#ifndef _QUARK_REG_ACCESS_H_
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#define _QUARK_REG_ACCESS_H_
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#include <delay.h>
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#include <fsp/util.h>
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#include <reg_script.h>
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#include <soc/IntelQNCConfig.h>
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@ -25,6 +26,7 @@ enum {
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USB_PHY_REGS = 1,
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SOC_UNIT_REGS,
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RMU_TEMP_REGS,
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MICROSECOND_DELAY,
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};
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enum {
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@ -78,6 +80,10 @@ enum {
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#define REG_SOC_UNIT_XOR(reg_, value_) \
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REG_SOC_UNIT_RXW(reg_, 0xffffffff, value_)
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/* Time delays */
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#define TIME_DELAY_USEC(value_) \
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SOC_ACCESS(WRITE, 0, REG_SCRIPT_SIZE_32, 0, value_, 0, MICROSECOND_DELAY)
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/* USB register access macros */
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#define REG_USB_ACCESS(cmd_, reg_, mask_, value_, timeout_) \
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SOC_ACCESS(cmd_, reg_, REG_SCRIPT_SIZE_32, mask_, value_, timeout_, \
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@ -150,6 +150,16 @@ static void reg_write(struct reg_script_context *ctx)
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reg_soc_unit_write(step->reg, (uint32_t)step->value);
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break;
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case MICROSECOND_DELAY:
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/* The actual delay is >= the requested delay */
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if (ctx->display_features) {
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/* Higher baud-rates will reduce the impact of displaying this message */
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printk(BIOS_INFO, "Delay %lld uSec\n", step->value);
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ctx->display_features = REG_SCRIPT_DISPLAY_NOTHING;
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}
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udelay(step->value);
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break;
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case USB_PHY_REGS:
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ctx->display_prefix = "USB PHY";
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reg_usb_write(step->reg, (uint32_t)step->value);
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