arm: rmobile: rcar: Stop clock prior to booting kernel
This stops clock except INTC-RT, MSIF, INTC-SYS, IRQC and SCIF before
kernel boots.
Signed-off-by: Hisashi Nakamura <hisashi.nakamura.ak@renesas.com>
Signed-off-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
Signed-off-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
diff --git a/board/renesas/rcar-gen2-common/common.c b/board/renesas/rcar-gen2-common/common.c
index 23010ee..0103f42b 100644
--- a/board/renesas/rcar-gen2-common/common.c
+++ b/board/renesas/rcar-gen2-common/common.c
@@ -16,12 +16,44 @@
#define TSTR0 0x04
#define TSTR0_STR0 0x01
-#define TMU0_MSTP125 (1 << 25)
+static struct mstp_ctl mstptbl[] = {
+ { SMSTPCR0, MSTP0_BITS, CONFIG_SMSTP0_ENA,
+ RMSTPCR0, MSTP0_BITS, CONFIG_RMSTP0_ENA },
+ { SMSTPCR1, MSTP1_BITS, CONFIG_SMSTP1_ENA,
+ RMSTPCR1, MSTP1_BITS, CONFIG_RMSTP1_ENA },
+ { SMSTPCR2, MSTP2_BITS, CONFIG_SMSTP2_ENA,
+ RMSTPCR2, MSTP2_BITS, CONFIG_RMSTP2_ENA },
+ { SMSTPCR3, MSTP3_BITS, CONFIG_SMSTP3_ENA,
+ RMSTPCR3, MSTP3_BITS, CONFIG_RMSTP3_ENA },
+ { SMSTPCR4, MSTP4_BITS, CONFIG_SMSTP4_ENA,
+ RMSTPCR4, MSTP4_BITS, CONFIG_RMSTP4_ENA },
+ { SMSTPCR5, MSTP5_BITS, CONFIG_SMSTP5_ENA,
+ RMSTPCR5, MSTP5_BITS, CONFIG_RMSTP5_ENA },
+ /* No MSTP6 */
+ { SMSTPCR7, MSTP7_BITS, CONFIG_SMSTP7_ENA,
+ RMSTPCR7, MSTP7_BITS, CONFIG_RMSTP7_ENA },
+ { SMSTPCR8, MSTP8_BITS, CONFIG_SMSTP8_ENA,
+ RMSTPCR8, MSTP8_BITS, CONFIG_RMSTP8_ENA },
+ { SMSTPCR9, MSTP9_BITS, CONFIG_SMSTP9_ENA,
+ RMSTPCR9, MSTP9_BITS, CONFIG_RMSTP9_ENA },
+ { SMSTPCR10, MSTP10_BITS, CONFIG_SMSTP10_ENA,
+ RMSTPCR10, MSTP10_BITS, CONFIG_RMSTP10_ENA },
+ { SMSTPCR11, MSTP11_BITS, CONFIG_SMSTP1_ENA,
+ RMSTPCR11, MSTP11_BITS, CONFIG_RMSTP11_ENA },
+};
+
void arch_preboot_os(void)
{
+ int i;
+
/* stop TMU0 */
mstp_clrbits_le32(TMU_BASE + TSTR0, TMU_BASE + TSTR0, TSTR0_STR0);
- /* Disable TMU0 */
- mstp_setbits_le32(MSTPSR1, SMSTPCR1, TMU0_MSTP125);
+ /* Stop module clock */
+ for (i = 0; i < ARRAY_SIZE(mstptbl); i++) {
+ mstp_setclrbits_le32(mstptbl[i].s_addr, mstptbl[i].s_dis,
+ mstptbl[i].s_ena);
+ mstp_setclrbits_le32(mstptbl[i].r_addr, mstptbl[i].r_dis,
+ mstptbl[i].r_ena);
+ }
}