diff options
Diffstat (limited to 'zephyr/shim/chip/npcx/system_external_storage.c')
| -rw-r--r-- | zephyr/shim/chip/npcx/system_external_storage.c | 43 |
1 files changed, 30 insertions, 13 deletions
diff --git a/zephyr/shim/chip/npcx/system_external_storage.c b/zephyr/shim/chip/npcx/system_external_storage.c index b53db04e18..373a4a48f7 100644 --- a/zephyr/shim/chip/npcx/system_external_storage.c +++ b/zephyr/shim/chip/npcx/system_external_storage.c @@ -3,6 +3,9 @@ * found in the LICENSE file. */ +#include <devicetree.h> +#include <drivers/syscon.h> + #include "clock_chip.h" #include "common.h" #include "rom_chip.h" @@ -11,10 +14,19 @@ /* TODO (b:179900857) Make this implementation not npcx specific. */ -#define NPCX_MDC_BASE_ADDR 0x4000C000 -#define NPCX_FWCTRL REG8(NPCX_MDC_BASE_ADDR + 0x007) +static const struct device *mdc_dev = DEVICE_DT_GET(DT_NODELABEL(mdc)); + +#ifdef CONFIG_SOC_SERIES_NPCX7 +#define NPCX_FWCTRL 0x007 #define NPCX_FWCTRL_RO_REGION 0 #define NPCX_FWCTRL_FW_SLOT 1 +#elif defined(CONFIG_SOC_SERIES_NPCX9) +#define NPCX_FWCTRL 0x009 +#define NPCX_FWCTRL_RO_REGION 6 +#define NPCX_FWCTRL_FW_SLOT 7 +#else +#error "Unsupported NPCX SoC series." +#endif void system_jump_to_booter(void) { @@ -97,18 +109,20 @@ uint32_t system_get_lfw_address() enum ec_image system_get_shrspi_image_copy(void) { - /* TODO (b:179900857) Make this implementation not npcx specific. */ - if (IS_BIT_SET(NPCX_FWCTRL, NPCX_FWCTRL_RO_REGION)) { + uint32_t fwctrl = 0; + + syscon_read_reg(mdc_dev, NPCX_FWCTRL, &fwctrl); + if (IS_BIT_SET(fwctrl, NPCX_FWCTRL_RO_REGION)) { /* RO image */ #ifdef CHIP_HAS_RO_B - if (!IS_BIT_SET(NPCX_FWCTRL, NPCX_FWCTRL_FW_SLOT)) + if (!IS_BIT_SET(fwctrl, NPCX_FWCTRL_FW_SLOT)) return EC_IMAGE_RO_B; #endif return EC_IMAGE_RO; } else { #ifdef CONFIG_RW_B /* RW image */ - if (!IS_BIT_SET(NPCX_FWCTRL, NPCX_FWCTRL_FW_SLOT)) + if (!IS_BIT_SET(fwctrl, NPCX_FWCTRL_FW_SLOT)) /* Slot A */ return EC_IMAGE_RW_B; #endif @@ -118,23 +132,26 @@ enum ec_image system_get_shrspi_image_copy(void) void system_set_image_copy(enum ec_image copy) { - /* TODO (b:179900857) Make this implementation not npcx specific. */ + uint32_t fwctrl = 0; + + syscon_read_reg(mdc_dev, NPCX_FWCTRL, &fwctrl); switch (copy) { case EC_IMAGE_RW: - CLEAR_BIT(NPCX_FWCTRL, NPCX_FWCTRL_RO_REGION); - SET_BIT(NPCX_FWCTRL, NPCX_FWCTRL_FW_SLOT); + CLEAR_BIT(fwctrl, NPCX_FWCTRL_RO_REGION); + SET_BIT(fwctrl, NPCX_FWCTRL_FW_SLOT); break; #ifdef CONFIG_RW_B case EC_IMAGE_RW_B: - CLEAR_BIT(NPCX_FWCTRL, NPCX_FWCTRL_RO_REGION); - CLEAR_BIT(NPCX_FWCTRL, NPCX_FWCTRL_FW_SLOT); + CLEAR_BIT(fwctrl, NPCX_FWCTRL_RO_REGION); + CLEAR_BIT(fwctrl, NPCX_FWCTRL_FW_SLOT); break; #endif default: /* Fall through to EC_IMAGE_RO */ case EC_IMAGE_RO: - SET_BIT(NPCX_FWCTRL, NPCX_FWCTRL_RO_REGION); - SET_BIT(NPCX_FWCTRL, NPCX_FWCTRL_FW_SLOT); + SET_BIT(fwctrl, NPCX_FWCTRL_RO_REGION); + SET_BIT(fwctrl, NPCX_FWCTRL_FW_SLOT); break; } + syscon_write_reg(mdc_dev, NPCX_FWCTRL, fwctrl); } |