ARM: rmobile: salvator-x: Add DVFS and PMIC support
Add support for rebooting the board using the ROHM BD9571MWV I2C PMIC,
but keep the CPU reboot option as a fallback.
Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Hiroyuki Yokoyama <hiroyuki.yokoyama.vx@renesas.com>
Cc: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
diff --git a/board/renesas/salvator-x/salvator-x.c b/board/renesas/salvator-x/salvator-x.c
index 38ff99a..acc541d 100644
--- a/board/renesas/salvator-x/salvator-x.c
+++ b/board/renesas/salvator-x/salvator-x.c
@@ -50,6 +50,7 @@
#define TMU1_MSTP124 BIT(24) /* non-secure */
#define SCIF2_MSTP310 BIT(10) /* SCIF2 */
#define ETHERAVB_MSTP812 BIT(12)
+#define DVFS_MSTP926 BIT(26)
#define SD0_MSTP314 BIT(14)
#define SD1_MSTP313 BIT(13)
#define SD2_MSTP312 BIT(12) /* either MMC0 */
@@ -78,6 +79,10 @@
writel(0, SD2CKCR);
writel(0, SD3CKCR);
+#if defined(CONFIG_SYS_I2C) && defined(CONFIG_SYS_I2C_SH)
+ /* DVFS for reset */
+ mstp_clrbits_le32(MSTPSR9, SMSTPCR9, DVFS_MSTP926);
+#endif
return 0;
}
@@ -235,8 +240,12 @@
void reset_cpu(ulong addr)
{
+#if defined(CONFIG_SYS_I2C) && defined(CONFIG_SYS_I2C_SH)
+ i2c_reg_write(CONFIG_SYS_I2C_POWERIC_ADDR, 0x20, 0x80);
+#else
/* only CA57 ? */
writel(RST_CODE, RST_CA57RESCNT);
+#endif
}
static const struct sh_serial_platdata serial_platdata = {
diff --git a/include/configs/salvator-x.h b/include/configs/salvator-x.h
index b5a98d6..0e5c130 100644
--- a/include/configs/salvator-x.h
+++ b/include/configs/salvator-x.h
@@ -50,6 +50,18 @@
#define GICD_BASE 0xF1010000
#define GICC_BASE 0xF1020000
+/* i2c */
+#define CONFIG_SYS_I2C
+#define CONFIG_SYS_I2C_SH
+#define CONFIG_SYS_I2C_SLAVE 0x60
+#define CONFIG_SYS_I2C_SH_NUM_CONTROLLERS 1
+#define CONFIG_SYS_I2C_SH_SPEED0 400000
+#define CONFIG_SH_I2C_DATA_HIGH 4
+#define CONFIG_SH_I2C_DATA_LOW 5
+#define CONFIG_SH_I2C_CLOCK 10000000
+
+#define CONFIG_SYS_I2C_POWERIC_ADDR 0x30
+
/* SDHI */
#define CONFIG_SH_SDHI_FREQ 200000000