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espi: it8xxx2: make sure h2ram offset is configured correctly

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This change for addressing the below symptoms.
Two FW images have different h2ram offset settings.
Jumping to each other will cause offset setting errors.

Signed-off-by: Dino Li <Dino.Li@ite.com.tw>
This commit is contained in:
Dino Li 2022-12-22 17:05:56 +08:00 • committed by Fabio Baltieri
commit 5bcd47f9b9
1 changed files with 4 additions and 1 deletions
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5
drivers/espi/espi_it8xxx2.c
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@ -196,6 +196,7 @@ static const struct ec2i_t pmc2_settings[] = {
* Linker script of h2ram.ld will make the pool 4K aligned.
*/
#define IT8XXX2_ESPI_H2RAM_POOL_SIZE_MAX 0x1000
#define IT8XXX2_ESPI_H2RAM_OFFSET_MASK GENMASK(3, 0)
#if defined(CONFIG_ESPI_PERIPHERAL_ACPI_SHM_REGION)
#define H2RAM_ACPI_SHM_MAX ((CONFIG_ESPI_IT8XXX2_ACPI_SHM_H2RAM_SIZE) + \
@ -249,7 +250,9 @@ static void smfi_it8xxx2_init(const struct device *dev)
/* Set the host to RAM cycle address offset */
h2ram_offset = ((uint32_t)h2ram_pool & 0xffff) /
IT8XXX2_ESPI_H2RAM_POOL_SIZE_MAX;
gctrl->GCTRL_H2ROFSR |= h2ram_offset;
gctrl->GCTRL_H2ROFSR =
(gctrl->GCTRL_H2ROFSR & ~IT8XXX2_ESPI_H2RAM_OFFSET_MASK) |
h2ram_offset;
#ifdef CONFIG_ESPI_PERIPHERAL_EC_HOST_CMD
memset(&h2ram_pool[CONFIG_ESPI_PERIPHERAL_HOST_CMD_PARAM_PORT_NUM], 0,