eaw/u-boot
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

acpi: Support copying properties from device tree to ACPI

Browse Source 
Some drivers in Linux support both device tree and ACPI. U-Boot itself
uses Linux device-tree bindings for its own configuration but does not use
ACPI.

It is convenient to copy these values over to the ACPI DP table for
passing to linux. Add some convenience functions to help with this.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
This commit is contained in:
Simon Glass
2020-07-07 13:11:58 -06:00
committed by Bin Meng
parent 2357234666
commit 0667900049
4 changed files with 174 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

67
test/dm/acpi_dp.c
View File

@@ -423,3 +423,70 @@ static int dm_test_acpi_dp_gpio(struct unit_test_state *uts)
return 0;
}
DM_TEST(dm_test_acpi_dp_gpio, 0);
/* Test copying info from the device tree to ACPI tables */
static int dm_test_acpi_dp_copy(struct unit_test_state *uts)
{
struct acpi_ctx *ctx;
struct udevice *dev;
struct acpi_dp *dp;
ofnode node;
u8 *ptr;
ut_assertok(alloc_context(&ctx));
dp = acpi_dp_new_table("FRED");
ut_assertnonnull(dp);
ut_assertok(uclass_get_device(UCLASS_TEST_FDT, 0, &dev));
ut_asserteq_str("a-test", dev->name);
ut_assertok(acpi_dp_dev_copy_int(dev, dp, "int-value"));
ut_asserteq(-EINVAL, acpi_dp_dev_copy_int(dev, dp, "missing-value"));
ut_assertok(acpi_dp_dev_copy_int(dev, dp, "uint-value"));
ut_assertok(acpi_dp_dev_copy_str(dev, dp, "str-value"));
ut_asserteq(-EINVAL, acpi_dp_dev_copy_str(dev, dp, "missing-value"));
node = ofnode_path("/chosen");
ut_assert(ofnode_valid(node));
ut_assertok(acpi_dp_ofnode_copy_int(node, dp, "int-values"));
ut_asserteq(-EINVAL,
acpi_dp_ofnode_copy_int(node, dp, "missing-value"));
ut_assertok(acpi_dp_ofnode_copy_str(node, dp, "setting"));
ut_asserteq(-EINVAL,
acpi_dp_ofnode_copy_str(node, dp, "missing-value"));
ptr = acpigen_get_current(ctx);
ut_assertok(acpi_dp_write(ctx, dp));
ut_asserteq(0x9d, acpigen_get_current(ctx) - ptr);
ut_asserteq(STRING_PREFIX, ptr[0x2b]);
ut_asserteq_str("int-value", (char *)ptr + 0x2c);
ut_asserteq(WORD_PREFIX, ptr[0x36]);
ut_asserteq(1234, get_unaligned((u16 *)(ptr + 0x37)));
ut_asserteq(STRING_PREFIX, ptr[0x3e]);
ut_asserteq_str("uint-value", (char *)ptr + 0x3f);
ut_asserteq(DWORD_PREFIX, ptr[0x4a]);
ut_asserteq(-1234, get_unaligned((u32 *)(ptr + 0x4b)));
ut_asserteq(STRING_PREFIX, ptr[0x54]);
ut_asserteq_str("str-value", (char *)ptr + 0x55);
ut_asserteq(STRING_PREFIX, ptr[0x5f]);
ut_asserteq_str("test string", (char *)ptr + 0x60);
ut_asserteq(STRING_PREFIX, ptr[0x71]);
ut_asserteq_str("int-values", (char *)ptr + 0x72);
ut_asserteq(WORD_PREFIX, ptr[0x7d]);
ut_asserteq(0x1937, get_unaligned((u16 *)(ptr + 0x7e)));
ut_asserteq(STRING_PREFIX, ptr[0x85]);
ut_asserteq_str("setting", (char *)ptr + 0x86);
ut_asserteq(STRING_PREFIX, ptr[0x8e]);
ut_asserteq_str("sunrise ohoka", (char *)(ptr + 0x8f));
return 0;
}
DM_TEST(dm_test_acpi_dp_copy, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);