Skip to contentSkip to conversation

am33xx: enable GPMC clocks for TI814x

PATCH New Pekon Gupta 1 participant 2 messages Aug 6, 2013 Arm (32-bit)

lore
Share & tools
lore

Pekon Gupta

author
#0 lore raw

PATCH 1/2 am33xx: enable GPMC clocks for TI814x

GPMC registers need to be pre-initialized for NAND and NOR probe. So this patch brings out GPMC H/W engine from IDLE state.

Signed-off-by Pekon Gupta <[email protected]>
---
 arch/arm/cpu/armv7/am33xx/clock_ti814x.c | 5 +++++
 1 file changed, 5 insertions(+)
arch/arm/cpu/armv7/am33xx/clock_ti814x.c +5 -0
index 658772b..149590e 100644
@@ -269,6 +269,11 @@ static void enable_per_clocks(void)
 	while (readl(&cmalwon->uart0clkctrl) != PRCM_MOD_EN)
 		;
 
+	/* GPMC */
+	writel(PRCM_MOD_EN, &cmalwon->gpmcclkctrl);
+	while (readl(&cmalwon->gpmcclkctrl) != PRCM_MOD_EN)
+		;
+
 	/* HSMMC1 */
 	writel(PRCM_MOD_EN, &cmalwon->mmchs1clkctrl);
 	while (readl(&cmalwon->mmchs1clkctrl) != PRCM_MOD_EN)
Signature · 1 line
1.8.1
author
#1 lore raw

PATCH 2/2 ti814x_evm: enable support for NAND

ti814x_evm has on-board socket for using Micron (MT29Fxx) family of NAND devices to GPMC interface. This patch
- adds NAND related pin-mux configuration for same
- adds #defines for NAND partitions to TI814x configs
- enables support for NAND in TI814x configs
-

Signed-off-by Pekon Gupta <[email protected]>
---
 board/ti/ti814x/evm.c        |  4 +++
 board/ti/ti814x/evm.h        |  1 +
 board/ti/ti814x/mux.c        | 59 +++++++++++++++++++++++++++++++++++++
 include/configs/ti814x_evm.h | 70 +++++++++++++++++++++++++++++++++++++++++++-
 4 files changed, 133 insertions(+), 1 deletion(-)
board/ti/ti814x/evm.c +4 -0
index 17fba5a..165cdf4 100644
@@ -140,6 +140,9 @@ void s_init(void)
 	/* Set Ethernet pins */
 	enable_enet_pin_mux();
 
+	/* Set NAND pins */
+	enable_nand_pin_mux();
+
 	/* Enable UART */
 	uart_enable();
 

@@ -162,6 +165,7 @@ void s_init(void)
 int board_init(void)
 {
 	gd->bd->bi_boot_params = PHYS_DRAM_1 + 0x100;
+	gpmc_init();
 	return 0;
 }
board/ti/ti814x/evm.h +1 -0
index 6aebec6..113ccc0 100644
@@ -4,5 +4,6 @@
 void enable_uart0_pin_mux(void);
 void enable_mmc1_pin_mux(void);
 void enable_enet_pin_mux(void);
+void enable_nand_pin_mux(void);
 
 #endif /* _EVM_H */
board/ti/ti814x/mux.c +59 -0

68 lines not on this page · raw message

include/configs/ti814x_evm.h +69 -1

105 lines not on this page · raw message

Signature · 1 line
1.8.1