plat: marvell: ap807: implement workaround for errata-id 3033912
ERRATA ID: RES-3033912 - Internal Address Space Init state causes
a hang upon accesses to [0xf070_0000, 0xf07f_ffff]
Workaround: Boot Firmware (ATF) should configure CCU_RGF_WIN(4) to
split [0x6e_0000, 0xff_ffff] to values [0x6e_0000, 0x6f_ffff] and
[0x80_0000, 0xff_ffff] that cause accesses to the segment of
[0xf070_0000, 0xf07f_ffff] to act as RAZWI. Reuse common
work-around code for both AP806 and AP807.
Change-Id: Ia91a4802d02917d1682faa0c81571093d1687d97
Signed-off-by: Stefan Chulski <stefanc@marvell.com>
diff --git a/drivers/marvell/ccu.c b/drivers/marvell/ccu.c
index c73516e..ecf5091 100644
--- a/drivers/marvell/ccu.c
+++ b/drivers/marvell/ccu.c
@@ -30,6 +30,9 @@
((tgt) == DRAM_1_TID) || \
((tgt) == RAR_TID)) ? 1 : 0)
+#define CCU_RGF(win) (MVEBU_CCU_BASE(MVEBU_AP0) + \
+ 0x90 + 4 * (win))
+
/* For storage of CR, SCR, ALR, AHR abd GCR */
static uint32_t ccu_regs_save[MVEBU_CCU_MAX_WINS * 4 + 1];
@@ -366,3 +369,17 @@
return 0;
}
+
+void errata_wa_init(void)
+{
+ /*
+ * EERATA ID: RES-3033912 - Internal Address Space Init state causes
+ * a hang upon accesses to [0xf070_0000, 0xf07f_ffff]
+ * Workaround: Boot Firmware (ATF) should configure CCU_RGF_WIN(4) to
+ * split [0x6e_0000, 0xff_ffff] to values [0x6e_0000, 0x6f_ffff] and
+ * [0x80_0000, 0xff_ffff] that cause accesses to the
+ * segment of [0xf070_0000, 0xf07f_ffff] to act as RAZWI.
+ */
+ mmio_write_32(CCU_RGF(4), 0x37f9b809);
+ mmio_write_32(CCU_RGF(5), 0x7ffa0009);
+}
diff --git a/drivers/marvell/mochi/ap807_setup.c b/drivers/marvell/mochi/ap807_setup.c
index 7b68195..7cdfe05 100644
--- a/drivers/marvell/mochi/ap807_setup.c
+++ b/drivers/marvell/mochi/ap807_setup.c
@@ -117,6 +117,8 @@
reg |= (0x1 << CCU_SET_POC_OFFSET);
mmio_write_32(CCU_HTC_CR, reg);
#endif /* LLC_ENABLE */
+
+ errata_wa_init();
}
diff --git a/drivers/marvell/mochi/apn806_setup.c b/drivers/marvell/mochi/apn806_setup.c
index 1a02bd4..b8925d9 100644
--- a/drivers/marvell/mochi/apn806_setup.c
+++ b/drivers/marvell/mochi/apn806_setup.c
@@ -28,9 +28,6 @@
0x200)
#define CCU_SET_POC_OFFSET 5
-#define CCU_RGF(win) (MVEBU_CCU_BASE(MVEBU_AP0) + \
- 0x90 + 4 * (win))
-
#define DSS_CR0 (MVEBU_RFU_BASE + 0x100)
#define DVM_48BIT_VA_ENABLE (1 << 21)
@@ -95,20 +92,6 @@
mmio_write_32(SMMU_sACR, reg);
}
-static void apn806_errata_wa_init(void)
-{
- /*
- * ERRATA ID: RES-3033912 - Internal Address Space Init state causes
- * a hang upon accesses to [0xf070_0000, 0xf07f_ffff]
- * Workaround: Boot Firmware (ATF) should configure CCU_RGF_WIN(4) to
- * split [0x6e_0000, 0xff_ffff] to values [0x6e_0000, 0x6f_ffff] and
- * [0x80_0000, 0xff_ffff] that cause accesses to the
- * segment of [0xf070_0000, 0xf07f_ffff] to act as RAZWI.
- */
- mmio_write_32(CCU_RGF(4), 0x37f9b809);
- mmio_write_32(CCU_RGF(5), 0x7ffa0009);
-}
-
static void init_aurora2(void)
{
uint32_t reg;
@@ -131,7 +114,7 @@
mmio_write_32(CCU_HTC_CR, reg);
#endif /* LLC_ENABLE */
- apn806_errata_wa_init();
+ errata_wa_init();
}
diff --git a/include/drivers/marvell/ccu.h b/include/drivers/marvell/ccu.h
index 413ffb9..f8f0adf 100644
--- a/include/drivers/marvell/ccu.h
+++ b/include/drivers/marvell/ccu.h
@@ -47,6 +47,7 @@
void ccu_save_win_all(int ap_id);
void ccu_restore_win_all(int ap_id);
int ccu_is_win_enabled(int ap_index, uint32_t win_id);
+void errata_wa_init(void);
#endif
#endif /* CCU_H */