[U-Boot] [PATCH 05/15] sunxi_nand_spl: Use SYS_NAND_SELF_INIT and only do nand init when necessary

[Hans de Goede]

Use SYS_NAND_SELF_INIT and only setup the pinmux and clocks when we are
actually using the nand.

Signed-off-by: Hans de Goede <hdegoede at redhat.com>
---
 board/sunxi/board.c               | 12 +++++++-----
 drivers/mtd/nand/Kconfig          |  1 +
 drivers/mtd/nand/sunxi_nand_spl.c |  2 ++
 3 files changed, 10 insertions(+), 5 deletions(-)

diff --git a/board/sunxi/board.c b/board/sunxi/board.c
index 680523a..b76bb83 100644
--- a/board/sunxi/board.c
+++ b/board/sunxi/board.c
@@ -31,6 +31,7 @@
 #include <asm/arch/usb_phy.h>
 #include <asm/gpio.h>
 #include <asm/io.h>
+#include <nand.h>
 #include <net.h>
 
 #if defined CONFIG_VIDEO_LCD_PANEL_I2C && !(defined CONFIG_SPL_BUILD)
@@ -127,6 +128,12 @@ static void nand_clock_setup(void)
 	setbits_le32(&ccm->ahb_gate0, (CLK_GATE_OPEN << AHB_GATE_OFFSET_NAND0));
 	setbits_le32(&ccm->nand0_clk_cfg, CCM_NAND_CTRL_ENABLE | AHB_DIV_1);
 }
+
+void board_nand_init(void)
+{
+	nand_pinmux_setup();
+	nand_clock_setup();
+}
 #endif
 
 #ifdef CONFIG_GENERIC_MMC
@@ -453,11 +460,6 @@ void sunxi_board_init(void)
 	power_failed |= axp221_set_eldo(3, CONFIG_AXP221_ELDO3_VOLT);
 #endif
 
-#ifdef CONFIG_SPL_NAND_SUNXI
-	nand_pinmux_setup();
-	nand_clock_setup();
-#endif
-
 	printf("DRAM:");
 	ramsize = sunxi_dram_init();
 	printf(" %lu MiB\n", ramsize >> 20);
diff --git a/drivers/mtd/nand/Kconfig b/drivers/mtd/nand/Kconfig
index 41ebfea..18039f7 100644
--- a/drivers/mtd/nand/Kconfig
+++ b/drivers/mtd/nand/Kconfig
@@ -88,6 +88,7 @@ config SPL_NAND_DENALI
 config SPL_NAND_SUNXI
 	bool "Support for NAND on Allwinner A20 in SPL"
 	depends on MACH_SUN7I
+	select SYS_NAND_SELF_INIT
 	---help---
 	Enable support for NAND. This option allows SPL to read from
 	sunxi NAND using DMA transfers.
diff --git a/drivers/mtd/nand/sunxi_nand_spl.c b/drivers/mtd/nand/sunxi_nand_spl.c
index f6f4928..9efe904 100644
--- a/drivers/mtd/nand/sunxi_nand_spl.c
+++ b/drivers/mtd/nand/sunxi_nand_spl.c
@@ -153,6 +153,8 @@ void nand_init(void)
 {
 	uint32_t val;
 
+	board_nand_init();
+
 	val = readl(SUNXI_NFC_BASE + NFC_CTL);
 	/* enable and reset CTL */
 	writel(val | NFC_CTL_EN | NFC_CTL_RESET,
-- 
2.4.3