[U-Boot] [PATCHv2 04/20] arm: socfpga: add functions to bring sdram, timer, and uart out of reset

[dinguyen at opensource.altera.com]

From: Dinh Nguyen <dinguyen at opensource.altera.com>

These functions will be needed for use by the SPL for enabling the
console and sdram initialization.

Signed-off-by: Dinh Nguyen <dinguyen at opensource.altera.com>
Acked-by: Marek Vasut <marex at denx.de>
Acked-by: Pavel Machek <pavel at denx.de>
---
 arch/arm/cpu/armv7/socfpga/reset_manager.c        | 24 +++++++++++++++++++++++
 arch/arm/include/asm/arch-socfpga/reset_manager.h |  6 ++++++
 2 files changed, 30 insertions(+)

diff --git a/arch/arm/cpu/armv7/socfpga/reset_manager.c b/arch/arm/cpu/armv7/socfpga/reset_manager.c
index 25921e7..45b352b 100644
--- a/arch/arm/cpu/armv7/socfpga/reset_manager.c
+++ b/arch/arm/cpu/armv7/socfpga/reset_manager.c
@@ -113,3 +113,27 @@ void socfpga_spim_enable(void)
 	clrbits_le32(reset, (1 << RSTMGR_PERMODRST_SPIM0_LSB) |
 		     (1 << RSTMGR_PERMODRST_SPIM1_LSB));
 }
+
+/* Bring UART0 out of reset. */
+void socfpga_uart0_enable(void)
+{
+	const void *reset = &reset_manager_base->per_mod_reset;
+
+	clrbits_le32(reset, 1 << RSTMGR_PERMODRST_UART0_LSB);
+}
+
+/* Bring SDRAM controller out of reset. */
+void socfpga_sdram_enable(void)
+{
+	const void *reset = &reset_manager_base->per_mod_reset;
+
+	clrbits_le32(reset, 1 << RSTMGR_PERMODRST_SDR_LSB);
+}
+
+/* Bring OSC1 timer out of reset. */
+void socfpga_osc1timer_enable(void)
+{
+	const void *reset = &reset_manager_base->per_mod_reset;
+
+	clrbits_le32(reset, 1 << RSTMGR_PERMODRST_OSC1TIMER0_LSB);
+}
diff --git a/arch/arm/include/asm/arch-socfpga/reset_manager.h b/arch/arm/include/asm/arch-socfpga/reset_manager.h
index 034135b..d63a285 100644
--- a/arch/arm/include/asm/arch-socfpga/reset_manager.h
+++ b/arch/arm/include/asm/arch-socfpga/reset_manager.h
@@ -15,6 +15,9 @@ void socfpga_bridges_reset(int enable);
 void socfpga_emac_reset(int enable);
 void socfpga_watchdog_reset(void);
 void socfpga_spim_enable(void);
+void socfpga_uart0_enable(void);
+void socfpga_sdram_enable(void);
+void socfpga_osc1timer_enable(void);
 
 struct socfpga_reset_manager {
 	u32	status;
@@ -36,7 +39,10 @@ struct socfpga_reset_manager {
 #define RSTMGR_PERMODRST_EMAC0_LSB	0
 #define RSTMGR_PERMODRST_EMAC1_LSB	1
 #define RSTMGR_PERMODRST_L4WD0_LSB	6
+#define RSTMGR_PERMODRST_OSC1TIMER0_LSB	8
+#define RSTMGR_PERMODRST_UART0_LSB	16
 #define RSTMGR_PERMODRST_SPIM0_LSB	18
 #define RSTMGR_PERMODRST_SPIM1_LSB	19
+#define RSTMGR_PERMODRST_SDR_LSB	29
 
 #endif /* _RESET_MANAGER_H_ */
-- 
2.2.1