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google/edgar: add new board as variant of cyan baseboard

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Add support for google/edgar (Acer Chromebook 14 CB3-431) as
a variant of the cyan Braswell basebaseboard.

- Add board-specific code as the new edgar variant
- Add common code to the baseboard which will apply to all
  variants other than cyan

Sourced from Chromium branch firmware-edgar-7287.167.B,
commit 2319742: Edgar: Add Micron MT52L256M32D1PF-107 SPD data

Change-Id: I58548cbbc85828f37c0023e8aa9e09bdca612659
Signed-off-by: Matt DeVillier <matt.devillier@gmail.com>
Reviewed-on: https://review.coreboot.org/21127
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Martin Roth <martinroth@google.com>
This commit is contained in:
Matt DeVillier
2017-08-20 17:56:48 -05:00
committed by Martin Roth
parent 7427abce07
commit 4f20a4ae47
19 changed files with 865 additions and 7 deletions
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23
src/mainboard/google/cyan/chromeos.c
View File

@@ -16,6 +16,7 @@
#include <arch/io.h>
#include <rules.h>
#include <gpio.h>
#include <soc/gpio.h>
#include <string.h>
#include <vendorcode/google/chromeos/chromeos.h>
@@ -24,6 +25,8 @@
#define WP_STATUS_PAD_CFG0 0x4838
#define WP_STATUS_PAD_CFG1 0x483C
#define WP_GPIO GP_E_22
#if ENV_RAMSTAGE
#include <boot/coreboot_tables.h>
@@ -52,15 +55,23 @@ int get_write_protect_state(void)
* in the reading.
*/
#if ENV_ROMSTAGE
write32((void *)(COMMUNITY_GPEAST_BASE + WP_STATUS_PAD_CFG0),
(PAD_PULL_UP_20K | PAD_GPIO_ENABLE | PAD_CONFIG0_GPI_DEFAULT));
write32((void *)(COMMUNITY_GPEAST_BASE + WP_STATUS_PAD_CFG1),
PAD_CONFIG1_DEFAULT0);
if (IS_ENABLED(CONFIG_BOARD_GOOGLE_CYAN)) {
write32((void *)(COMMUNITY_GPEAST_BASE + WP_STATUS_PAD_CFG0),
(PAD_PULL_UP_20K | PAD_GPIO_ENABLE | PAD_CONFIG0_GPI_DEFAULT));
write32((void *)(COMMUNITY_GPEAST_BASE + WP_STATUS_PAD_CFG1),
PAD_CONFIG1_DEFAULT0);
} else {
gpio_input_pullup(WP_GPIO);
}
#endif
/* WP is enabled when the pin is reading high. */
return (read32((void *)(COMMUNITY_GPEAST_BASE + WP_STATUS_PAD_CFG0))
& PAD_VAL_HIGH);
if (IS_ENABLED(CONFIG_BOARD_GOOGLE_CYAN)) {
return (read32((void *)(COMMUNITY_GPEAST_BASE + WP_STATUS_PAD_CFG0))
& PAD_VAL_HIGH);
} else {
return !!gpio_get(WP_GPIO);
}
}
static const struct cros_gpio cros_gpios[] = {