From f62bfa56daf17e3e8fac85795196c0ffad42e444 Mon Sep 17 00:00:00 2001
From: Hans de Goede <hdegoede@redhat.com>
Date: Sat, 15 Aug 2015 11:55:26 +0200
Subject: [PATCH] sunxi_nand_spl: Use SYS_NAND_SELF_INIT and only do nand init
when necessary
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@redhat.com>
Acked-by: Ian Campbell <ijc@hellion.org.uk>
---
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 680523ac63..b76bb83251 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 b6dfb0e835..28597f0c8b 100644
--- a/drivers/mtd/nand/Kconfig
+++ b/drivers/mtd/nand/Kconfig
@@ -95,6 +95,7 @@ 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 f6f49289f8..9efe904cc7 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,
--
2.39.5