sunxi_nand_spl: Use SYS_NAND_SELF_INIT and only do nand init when necessary
authorHans de Goede <hdegoede@redhat.com>
Sat, 15 Aug 2015 09:55:26 +0000 (11:55 +0200)
committerLothar Waßmann <LW@KARO-electronics.de>
Thu, 10 Sep 2015 10:19:13 +0000 (12:19 +0200)
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
drivers/mtd/nand/Kconfig
drivers/mtd/nand/sunxi_nand_spl.c

index 680523a..b76bb83 100644 (file)
@@ -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);
index efd8fd5..50b91c4 100644 (file)
@@ -101,6 +101,7 @@ 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.
index f6f4928..9efe904 100644 (file)
@@ -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,