sunxi: nand: Add pinmux and clock settings for NAND support

[karo-tx-uboot.git] / board / sunxi / board.c

diff --git a/board/sunxi/board.c b/board/sunxi/board.c
index afed6a31cab6732f334d8dba2272730ee8306ac4..f85e825891bc0dbf8009d8f77c37281917f699a9 100644 (file)
--- a/board/sunxi/board.c
+++ b/board/sunxi/board.c
@@ -107,6 +107,28 @@ int dram_init(void)
        return 0;
 }
 
+#if defined(CONFIG_SPL_NAND_SUNXI) && defined(CONFIG_SPL_BUILD)
+static void nand_pinmux_setup(void)
+{
+       unsigned int pin;
+       for (pin = SUNXI_GPC(0); pin <= SUNXI_GPC(6); pin++)
+               sunxi_gpio_set_cfgpin(pin, SUNXI_GPC_NAND);
+
+       for (pin = SUNXI_GPC(8); pin <= SUNXI_GPC(22); pin++)
+               sunxi_gpio_set_cfgpin(pin, SUNXI_GPC_NAND);
+
+       sunxi_gpio_set_cfgpin(SUNXI_GPC(24), SUNXI_GPC_NAND);
+}
+
+static void nand_clock_setup(void)
+{
+       struct sunxi_ccm_reg *const ccm =
+               (struct sunxi_ccm_reg *)SUNXI_CCM_BASE;
+       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);
+}
+#endif
+
 #ifdef CONFIG_GENERIC_MMC
 static void mmc_pinmux_setup(int sdc)
 {
@@ -431,6 +453,11 @@ 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);