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soc/intel/quark: Add temperature sensor support

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Migrate the temperature sensor support from QuarkFspPkg into coreboot.

TEST=Build and run on Galileo Gen2

Change-Id: I6dc68c735375c9d1777693264674521f67397556
Signed-off-by: Lee Leahy <leroy.p.leahy@intel.com>
Reviewed-on: https://review.coreboot.org/14565
Tested-by: build bot (Jenkins)
Reviewed-by: Martin Roth <martinroth@google.com>
This commit is contained in:
Lee Leahy
2016-04-30 08:48:52 -07:00
committed by Leroy P Leahy
parent 4dd34eee09
commit 63e3dff02f
3 changed files with 197 additions and 0 deletions
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54
src/soc/intel/quark/reg_access.c
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@@ -45,6 +45,40 @@ void mea_write(uint32_t reg_address)
& QNC_MEA_MASK);
}
uint32_t reg_rmu_temp_read(uint32_t reg_address)
{
/* Read the RMU temperature register */
mea_write(reg_address);
mcr_write(QUARK_OPCODE_READ, QUARK_NC_RMU_SB_PORT_ID, reg_address);
return mdr_read();
}
static void reg_rmu_temp_write(uint32_t reg_address, uint32_t value)
{
/* Write the RMU temperature register */
mea_write(reg_address);
mdr_write(value);
mcr_write(QUARK_OPCODE_WRITE, QUARK_NC_RMU_SB_PORT_ID, reg_address);
}
static uint32_t reg_soc_unit_read(uint32_t reg_address)
{
/* Read the temperature sensor register */
mea_write(reg_address);
mcr_write(QUARK_ALT_OPCODE_READ, QUARK_SCSS_SOC_UNIT_SB_PORT_ID,
reg_address);
return mdr_read();
}
static void reg_soc_unit_write(uint32_t reg_address, uint32_t value)
{
/* Write the temperature sensor register */
mea_write(reg_address);
mdr_write(value);
mcr_write(QUARK_ALT_OPCODE_WRITE, QUARK_SCSS_SOC_UNIT_SB_PORT_ID,
reg_address);
}
static uint32_t reg_usb_read(uint32_t reg_address)
{
/* Read the USB register */
@@ -76,6 +110,16 @@ static uint64_t reg_read(struct reg_script_context *ctx)
ctx->display_features = REG_SCRIPT_DISPLAY_NOTHING;
return 0;
case RMU_TEMP_REGS:
ctx->display_prefix = "RMU TEMP";
value = reg_rmu_temp_read(step->reg);
break;
case SOC_UNIT_REGS:
ctx->display_prefix = "SOC Unit";
value = reg_soc_unit_read(step->reg);
break;
case USB_PHY_REGS:
ctx->display_prefix = "USB PHY";
value = reg_usb_read(step->reg);
@@ -96,6 +140,16 @@ static void reg_write(struct reg_script_context *ctx)
ctx->display_features = REG_SCRIPT_DISPLAY_NOTHING;
return;
case RMU_TEMP_REGS:
ctx->display_prefix = "RMU TEMP";
reg_rmu_temp_write(step->reg, (uint32_t)step->value);
break;
case SOC_UNIT_REGS:
ctx->display_prefix = "SOC Unit";
reg_soc_unit_write(step->reg, (uint32_t)step->value);
break;
case USB_PHY_REGS:
ctx->display_prefix = "USB PHY";
reg_usb_write(step->reg, (uint32_t)step->value);