feat(plat/rcar3): add SYSCEXTMASK bit set/clear in scu_power_up
Added the process of SYSECEXTMASK bit set/clear for following
power Resume/Shutoff flow.
Signed-off-by: Hideyuki Nitta <hideyuki.nitta.jf@hitachi.com>
Signed-off-by: Toshiyuki Ogasahara <toshiyuki.ogasahara.bo@hitachi.com>
Signed-off-by: Yoshifumi Hosoya <yoshifumi.hosoya.wj@renesas.com>
Change-Id: I71ed22840a42e7ab7d87bfd4241eec6f5ddb129b
diff --git a/drivers/renesas/common/pwrc/pwrc.c b/drivers/renesas/common/pwrc/pwrc.c
index 3f60fe6..d29a026 100644
--- a/drivers/renesas/common/pwrc/pwrc.c
+++ b/drivers/renesas/common/pwrc/pwrc.c
@@ -44,6 +44,7 @@
#define CPU_PWR_OFF (0x00000003U)
#define RCAR_PSTR_MASK (0x00000003U)
#define ST_ALL_STANDBY (0x00003333U)
+#define SYSCEXTMASK_EXTMSK0 (0x00000001U)
/* Suspend to ram */
#define DBSC4_REG_BASE (0xE6790000U)
#define DBSC4_REG_DBSYSCNT0 (DBSC4_REG_BASE + 0x0100U)
@@ -191,6 +192,8 @@
{
uintptr_t reg_pwrsr, reg_cpumcr, reg_pwron, reg_pwrer;
uint32_t c, sysc_reg_bit;
+ uint32_t lsi_product;
+ uint32_t lsi_cut;
c = rcar_pwrc_get_mpidr_cluster(mpidr);
reg_cpumcr = IS_CA57(c) ? RCAR_CA57CPUCMCR : RCAR_CA53CPUCMCR;
@@ -205,6 +208,17 @@
if (mmio_read_32(reg_cpumcr) != 0)
mmio_write_32(reg_cpumcr, 0);
+ lsi_product = mmio_read_32((uintptr_t)RCAR_PRR);
+ lsi_cut = lsi_product & PRR_CUT_MASK;
+ lsi_product &= PRR_PRODUCT_MASK;
+
+ if ((lsi_product == PRR_PRODUCT_M3 && lsi_cut >= PRR_PRODUCT_30) ||
+ lsi_product == PRR_PRODUCT_H3 ||
+ lsi_product == PRR_PRODUCT_M3N ||
+ lsi_product == PRR_PRODUCT_E3) {
+ mmio_setbits_32(RCAR_SYSCEXTMASK, SYSCEXTMASK_EXTMSK0);
+ }
+
mmio_setbits_32(RCAR_SYSCIER, sysc_reg_bit);
mmio_setbits_32(RCAR_SYSCIMR, sysc_reg_bit);
@@ -217,6 +231,14 @@
while ((mmio_read_32(RCAR_SYSCISR) & sysc_reg_bit) == 0)
;
mmio_write_32(RCAR_SYSCISR, sysc_reg_bit);
+
+ if ((lsi_product == PRR_PRODUCT_M3 && lsi_cut >= PRR_PRODUCT_30) ||
+ lsi_product == PRR_PRODUCT_H3 ||
+ lsi_product == PRR_PRODUCT_M3N ||
+ lsi_product == PRR_PRODUCT_E3) {
+ mmio_clrbits_32(RCAR_SYSCEXTMASK, SYSCEXTMASK_EXTMSK0);
+ }
+
while ((mmio_read_32(reg_pwrsr) & STATUS_PWRUP) == 0)
;
}