diff options
Diffstat (limited to 'src/ec/google/chromeec/ec_lpc.c')
| -rw-r--r-- | src/ec/google/chromeec/ec_lpc.c | 29 |
1 files changed, 28 insertions, 1 deletions
diff --git a/src/ec/google/chromeec/ec_lpc.c b/src/ec/google/chromeec/ec_lpc.c index 021735ec6b..f9d0f8bfc7 100644 --- a/src/ec/google/chromeec/ec_lpc.c +++ b/src/ec/google/chromeec/ec_lpc.c @@ -14,6 +14,7 @@ */ #include <arch/io.h> +#include <assert.h> #include <console/console.h> #include <delay.h> #include <device/pnp.h> @@ -407,9 +408,35 @@ static void lpc_ec_init(struct device *dev) google_chromeec_init(); } +/* + * Declare the IO ports that we are using: + * + * All ECs (not explicitly declared): + * 0x60/0x64, 0x62/0x66, 0x80, 0x200->0x207 + * + * mec1322: 0x800->0x807 + * All others: 0x800->0x9ff + * + * EC_GOOGLE_CHROMEEC_ACPI_MEMMAP is only used for MEC ECs. + */ static void lpc_ec_read_resources(struct device *dev) { - /* Nothing, but this function avoids an error on serial console. */ + unsigned int idx = 0; + struct resource * res; + + + res = new_resource(dev, idx++); + if (IS_ENABLED(CONFIG_EC_GOOGLE_CHROMEEC_MEC)) { + res->base = MEC_EMI_BASE; + res->size = MEC_EMI_SIZE; + } else { + res->base = EC_HOST_CMD_REGION0; + res->size = 2 * EC_HOST_CMD_REGION_SIZE; + /* Make sure MEMMAP region follows host cmd region. */ + assert(res->base + res->size == EC_LPC_ADDR_MEMMAP); + res->size += EC_MEMMAP_SIZE; + } + res->flags = IORESOURCE_IO | IORESOURCE_ASSIGNED | IORESOURCE_FIXED; } static void lpc_ec_enable_resources(struct device *dev) |