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Add experimental shutdown support for OPi PC2

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This commit is contained in:
zador-blood-stained 2017-02-11 23:17:07 +03:00
parent bacf567104
commit 33dfd56034
1 changed files with 65 additions and 0 deletions
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65
patch/u-boot/u-boot-sun50i-dev/add-pc2-shutdown.patch Normal file
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@ -0,0 +1,65 @@
diff --git a/arm-trusted-firmware/plat/sun50iw1p1/plat_pm.c b/arm-trusted-firmware/plat/sun50iw1p1/plat_pm.c
index ec26248..ed53871 100644
--- a/arm-trusted-firmware/plat/sun50iw1p1/plat_pm.c
+++ b/arm-trusted-firmware/plat/sun50iw1p1/plat_pm.c
@@ -254,7 +254,59 @@ static int32_t sunxi_affinst_suspend_finish(uint64_t mpidr,
******************************************************************************/
static void __dead2 sunxi_system_off(void)
{
- sunxi_pmic_write(0x32, sunxi_pmic_read(0x32) | 0x80);
+ uint16_t soc_id;
+ uint32_t reg;
+ soc_id = sunxi_get_socid();
+
+ switch (soc_id) {
+ case 0x1689:
+ sunxi_pmic_write(0x32, sunxi_pmic_read(0x32) | 0x80);
+ break;
+ case 0x1718:
+ /* Disable EMAC power: PD6 to low */
+ reg = mmio_read_32(0x01c20800 + 0x6c);
+ reg &= ~(0x7 << 24);
+ reg |= (0x1 << 24);
+ mmio_write_32(0x01f02c00 + 0x6c, reg);
+
+ reg = mmio_read_32(0x01c20800 + 0x7c);
+ reg &= ~(0x1 << 6);
+ mmio_write_32(0x01f02c00 + 0x7c, reg);
+
+ /* Disable DRAM regulator: PL9 to low */
+ reg = mmio_read_32(0x01f02c00 + 0x04);
+ reg &= ~(0x7 << 4);
+ reg |= (0x1 << 4);
+ mmio_write_32(0x01f02c00 + 0x04, reg);
+
+ reg = mmio_read_32(0x01f02c00 + 0x10);
+ reg &= ~(0x1 << 9);
+ mmio_write_32(0x01f02c00 + 0x10, reg);
+
+ /* Disable I/O regulator: PL5 to low */
+ reg = mmio_read_32(0x01f02c00 + 0x00);
+ reg &= ~(0x7 << 20);
+ reg |= (0x1 << 20);
+ mmio_write_32(0x01f02c00 + 0x00, reg);
+
+ reg = mmio_read_32(0x01f02c00 + 0x10);
+ reg &= ~(0x1 << 5);
+ mmio_write_32(0x01f02c00 + 0x10, reg);
+
+ /* Disable CPU regulator: PL8 to low */
+ reg = mmio_read_32(0x01f02c00 + 0x04);
+ reg &= ~0x7;
+ reg |= 0x1;
+ mmio_write_32(0x01f02c00 + 0x04, reg);
+
+ reg = mmio_read_32(0x01f02c00 + 0x10);
+ reg &= ~(0x1 << 8);
+ mmio_write_32(0x01f02c00 + 0x10, reg);
+
+ udelay(100);
+ break;
+ }
+
ERROR("PSCI system shutdown: still alive ...\n");
wfi();