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it8xxx2: espi: reduce h2ram pool size

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This saves 1280 bytes memory space by default eSPI configurations.

Signed-off-by: Dino Li <Dino.Li@ite.com.tw>
This commit is contained in:
Dino Li 2022-03-02 10:21:22 +08:00 • committed by Maureen Helm
commit 7a9a5cec0b
1 changed files with 7 additions and 6 deletions
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13
drivers/espi/espi_it8xxx2.c
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@ -188,14 +188,12 @@ static const struct ec2i_t pmc2_settings[] = {
* Eg. the I/O cycle 800h~8ffh from host can be mapped to x800h~x8ffh.
* Linker script of h2ram.ld will make the pool 4K aligned.
*/
#define IT8XXX2_ESPI_H2RAM_POOL_SIZE 0x1000
static uint8_t h2ram_pool[IT8XXX2_ESPI_H2RAM_POOL_SIZE]
__attribute__((section(".h2ram_pool")));
#define IT8XXX2_ESPI_H2RAM_POOL_SIZE_MAX 0x1000
#if defined(CONFIG_ESPI_PERIPHERAL_ACPI_SHM_REGION)
#define H2RAM_ACPI_SHM_MAX ((CONFIG_ESPI_IT8XXX2_ACPI_SHM_H2RAM_SIZE) + \
(CONFIG_ESPI_PERIPHERAL_ACPI_SHM_REGION_PORT_NUM))
#if (H2RAM_ACPI_SHM_MAX > IT8XXX2_ESPI_H2RAM_POOL_SIZE)
#if (H2RAM_ACPI_SHM_MAX > IT8XXX2_ESPI_H2RAM_POOL_SIZE_MAX)
#error "ACPI shared memory region out of h2ram"
#endif
#endif /* CONFIG_ESPI_PERIPHERAL_ACPI_SHM_REGION */
@ -203,7 +201,7 @@ static uint8_t h2ram_pool[IT8XXX2_ESPI_H2RAM_POOL_SIZE]
#if defined(CONFIG_ESPI_PERIPHERAL_EC_HOST_CMD)
#define H2RAM_EC_HOST_CMD_MAX ((CONFIG_ESPI_IT8XXX2_HC_H2RAM_SIZE) + \
(CONFIG_ESPI_PERIPHERAL_HOST_CMD_PARAM_PORT_NUM))
#if (H2RAM_EC_HOST_CMD_MAX > IT8XXX2_ESPI_H2RAM_POOL_SIZE)
#if (H2RAM_EC_HOST_CMD_MAX > IT8XXX2_ESPI_H2RAM_POOL_SIZE_MAX)
#error "EC host command parameters out of h2ram"
#endif
#endif /* CONFIG_ESPI_PERIPHERAL_EC_HOST_CMD */
@ -217,6 +215,9 @@ static uint8_t h2ram_pool[IT8XXX2_ESPI_H2RAM_POOL_SIZE]
#endif
#endif
static uint8_t h2ram_pool[MAX(H2RAM_ACPI_SHM_MAX, H2RAM_EC_HOST_CMD_MAX)]
__attribute__((section(".h2ram_pool")));
#define H2RAM_WINDOW_SIZE(ram_size) ((find_msb_set((ram_size) / 16) - 1) & 0x7)
static const struct ec2i_t smfi_settings[] = {
@ -240,7 +241,7 @@ 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;
IT8XXX2_ESPI_H2RAM_POOL_SIZE_MAX;
gctrl->GCTRL_H2ROFSR |= h2ram_offset;
#ifdef CONFIG_ESPI_PERIPHERAL_EC_HOST_CMD