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x86: coral: Show memory config and SKU ID on startup

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Provide the model information through sysinfo so that it shows up on
boot. For memconfig 4 pins are provided, for 16 combinations. For SKU
ID there are two options:

   - two pins provided in a ternary arrangement, for 9 combinations.
   - reading from the EC

Add a binding doc and drop the unused #defines as well.

Example:

   U-Boot 2021.01-rc5

   CPU:   Intel(R) Celeron(R) CPU N3450 @ 1.10GHz
   DRAM:  3.9 GiB
   MMC:   sdmmc@1b,0: 1, emmc@1c,0: 2
   Video: 1024x768x32 @ b0000000
   Model: Google Coral (memconfig 5, SKU 3)

This depends on the GPIO series:

   http://patchwork.ozlabs.org/project/uboot/list/?series=228126

Signed-off-by: Simon Glass <sjg@chromium.org>

Acked-by: Bin Meng <bmeng.cn@gmail.com>
This commit is contained in:
Simon Glass
2021-03-21 16:50:07 +13:00
parent 96dedb0da2
commit 80a4570c99
4 changed files with 179 additions and 14 deletions
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11
arch/x86/dts/chromebook_coral.dts
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@@ -56,6 +56,17 @@
recovery-gpios = <&gpio_nw (-1) GPIO_ACTIVE_LOW>;
write-protect-gpios = <&gpio_nw GPIO_75 GPIO_ACTIVE_HIGH>;
phase-enforce-gpios = <&gpio_n GPIO_10 GPIO_ACTIVE_HIGH>;
memconfig-gpios = <&gpio_nw GPIO_101 GPIO_ACTIVE_HIGH
&gpio_nw GPIO_102 GPIO_ACTIVE_HIGH
&gpio_n GPIO_38 GPIO_ACTIVE_HIGH
&gpio_n GPIO_45 GPIO_ACTIVE_HIGH>;
/*
* This is used for reef only:
*
* skuconfig-gpios = <&gpio_nw GPIO_16 GPIO_ACTIVE_HIGH
* &gpio_nw GPIO_17 GPIO_ACTIVE_HIGH>;
*/
smbios {
/* Type 1 table */
system {