MX31: Add NAND SPL boot support to i.MX31 PDK board.
Signed-off-by: Magnus Lilja <lilja.magnus@gmail.com>
diff --git a/include/asm-arm/arch-mx31/mx31-regs.h b/include/asm-arm/arch-mx31/mx31-regs.h
index 76f4d53..51b02a2 100644
--- a/include/asm-arm/arch-mx31/mx31-regs.h
+++ b/include/asm-arm/arch-mx31/mx31-regs.h
@@ -61,6 +61,29 @@
#define PLL_MFI(x) (((x) & 0xf) << 10)
#define PLL_MFN(x) (((x) & 0x3ff) << 0)
+#define WEIM_ESDCTL0 0xB8001000
+#define WEIM_ESDCFG0 0xB8001004
+#define WEIM_ESDCTL1 0xB8001008
+#define WEIM_ESDCFG1 0xB800100C
+#define WEIM_ESDMISC 0xB8001010
+
+#define ESDCTL_SDE (1 << 31)
+#define ESDCTL_CMD_RW (0 << 28)
+#define ESDCTL_CMD_PRECHARGE (1 << 28)
+#define ESDCTL_CMD_AUTOREFRESH (2 << 28)
+#define ESDCTL_CMD_LOADMODEREG (3 << 28)
+#define ESDCTL_CMD_MANUALREFRESH (4 << 28)
+#define ESDCTL_ROW_13 (2 << 24)
+#define ESDCTL_ROW(x) ((x) << 24)
+#define ESDCTL_COL_9 (1 << 20)
+#define ESDCTL_COL(x) ((x) << 20)
+#define ESDCTL_DSIZ(x) ((x) << 16)
+#define ESDCTL_SREFR(x) ((x) << 13)
+#define ESDCTL_PWDT(x) ((x) << 10)
+#define ESDCTL_FP(x) ((x) << 8)
+#define ESDCTL_BL(x) ((x) << 7)
+#define ESDCTL_PRCT(x) ((x) << 0)
+
#define WEIM_BASE 0xb8002000
#define CSCR_U(x) (WEIM_BASE + (x) * 0x10)
#define CSCR_L(x) (WEIM_BASE + 4 + (x) * 0x10)
@@ -181,6 +204,37 @@
#define MUX_CSPI2_MOSI__I2C2_SCL IOMUX_MODE(MUX_CTL_CSPI2_MOSI, MUX_CTL_ALT1)
#define MUX_CSPI2_MISO__I2C2_SDA IOMUX_MODE(MUX_CTL_CSPI2_MISO, MUX_CTL_ALT1)
+/* PAD control registers for SDR/DDR */
+#define IOMUXC_SW_PAD_CTL_SDCKE1_SDCLK_SDCLK_B (IOMUXC_BASE + 0x26C)
+#define IOMUXC_SW_PAD_CTL_CAS_SDWE_SDCKE0 (IOMUXC_BASE + 0x270)
+#define IOMUXC_SW_PAD_CTL_BCLK_RW_RAS (IOMUXC_BASE + 0x274)
+#define IOMUXC_SW_PAD_CTL_CS5_ECB_LBA (IOMUXC_BASE + 0x278)
+#define IOMUXC_SW_PAD_CTL_CS2_CS3_CS4 (IOMUXC_BASE + 0x27C)
+#define IOMUXC_SW_PAD_CTL_OE_CS0_CS1 (IOMUXC_BASE + 0x280)
+#define IOMUXC_SW_PAD_CTL_DQM3_EB0_EB1 (IOMUXC_BASE + 0x284)
+#define IOMUXC_SW_PAD_CTL_DQM0_DQM1_DQM2 (IOMUXC_BASE + 0x288)
+#define IOMUXC_SW_PAD_CTL_SD29_SD30_SD31 (IOMUXC_BASE + 0x28C)
+#define IOMUXC_SW_PAD_CTL_SD26_SD27_SD28 (IOMUXC_BASE + 0x290)
+#define IOMUXC_SW_PAD_CTL_SD23_SD24_SD25 (IOMUXC_BASE + 0x294)
+#define IOMUXC_SW_PAD_CTL_SD20_SD21_SD22 (IOMUXC_BASE + 0x298)
+#define IOMUXC_SW_PAD_CTL_SD17_SD18_SD19 (IOMUXC_BASE + 0x29C)
+#define IOMUXC_SW_PAD_CTL_SD14_SD15_SD16 (IOMUXC_BASE + 0x2A0)
+#define IOMUXC_SW_PAD_CTL_SD11_SD12_SD13 (IOMUXC_BASE + 0x2A4)
+#define IOMUXC_SW_PAD_CTL_SD8_SD9_SD10 (IOMUXC_BASE + 0x2A8)
+#define IOMUXC_SW_PAD_CTL_SD5_SD6_SD7 (IOMUXC_BASE + 0x2AC)
+#define IOMUXC_SW_PAD_CTL_SD2_SD3_SD4 (IOMUXC_BASE + 0x2B0)
+#define IOMUXC_SW_PAD_CTL_SDBA0_SD0_SD1 (IOMUXC_BASE + 0x2B4)
+#define IOMUXC_SW_PAD_CTL_A24_A25_SDBA1 (IOMUXC_BASE + 0x2B8)
+#define IOMUXC_SW_PAD_CTL_A21_A22_A23 (IOMUXC_BASE + 0x2BC)
+#define IOMUXC_SW_PAD_CTL_A18_A19_A20 (IOMUXC_BASE + 0x2C0)
+#define IOMUXC_SW_PAD_CTL_A15_A16_A17 (IOMUXC_BASE + 0x2C4)
+#define IOMUXC_SW_PAD_CTL_A12_A13_A14 (IOMUXC_BASE + 0x2C8)
+#define IOMUXC_SW_PAD_CTL_A10_MA10_A11 (IOMUXC_BASE + 0x2CC)
+#define IOMUXC_SW_PAD_CTL_A7_A8_A9 (IOMUXC_BASE + 0x2D0)
+#define IOMUXC_SW_PAD_CTL_A4_A5_A6 (IOMUXC_BASE + 0x2D4)
+#define IOMUXC_SW_PAD_CTL_A1_A2_A3 (IOMUXC_BASE + 0x2D8)
+#define IOMUXC_SW_PAD_CTL_VPG0_VPG1_A0 (IOMUXC_BASE + 0x2DC)
+
/*
* Memory regions and CS
*/
diff --git a/include/configs/mx31pdk.h b/include/configs/mx31pdk.h
index 7167e9d..a4862c6 100644
--- a/include/configs/mx31pdk.h
+++ b/include/configs/mx31pdk.h
@@ -43,10 +43,10 @@
#define CONFIG_SETUP_MEMORY_TAGS 1
#define CONFIG_INITRD_TAG 1
-/* No support for NAND boot for i.MX31 PDK yet, so we rely on some other
- * program to initialize the SDRAM.
- */
+#if defined(CONFIG_NAND_U_BOOT) && !defined(CONFIG_NAND_SPL)
#define CONFIG_SKIP_LOWLEVEL_INIT
+#define CONFIG_SKIP_RELOCATE_UBOOT
+#endif
/*
* Size of malloc() pool
@@ -159,4 +159,41 @@
#define CONFIG_ENV_SIZE (128 * 1024)
+/* NAND configuration for the NAND_SPL */
+
+/* Start copying real U-boot from the second page */
+#define CONFIG_SYS_NAND_U_BOOT_OFFS 0x800
+#define CONFIG_SYS_NAND_U_BOOT_SIZE 0x30000
+/* Load U-Boot to this address */
+#define CONFIG_SYS_NAND_U_BOOT_DST 0x87f00000
+#define CONFIG_SYS_NAND_U_BOOT_START CONFIG_SYS_NAND_U_BOOT_DST
+
+#define CONFIG_SYS_NAND_PAGE_SIZE 0x800
+#define CONFIG_SYS_NAND_BLOCK_SIZE (128 * 1024)
+#define CONFIG_SYS_NAND_PAGE_COUNT 64
+#define CONFIG_SYS_NAND_SIZE (256 * 1024 * 1024)
+#define CONFIG_SYS_NAND_BAD_BLOCK_POS 0
+
+
+/* Configuration of lowlevel_init.S (clocks and SDRAM) */
+#define CCM_CCMR_SETUP 0x074B0BF5
+#define CCM_PDR0_SETUP_532MHZ (PDR0_CSI_PODF(0x1ff) | PDR0_PER_PODF(7) | \
+ PDR0_HSP_PODF(3) | PDR0_NFC_PODF(5) | \
+ PDR0_IPG_PODF(1) | PDR0_MAX_PODF(3) | \
+ PDR0_MCU_PODF(0))
+#define CCM_MPCTL_SETUP_532MHZ (PLL_PD(0) | PLL_MFD(51) | PLL_MFI(10) | \
+ PLL_MFN(12))
+
+#define ESDMISC_MDDR_SETUP 0x00000004
+#define ESDMISC_MDDR_RESET_DL 0x0000000c
+#define ESDCFG0_MDDR_SETUP 0x006ac73a
+
+#define ESDCTL_ROW_COL (ESDCTL_SDE | ESDCTL_ROW(2) | ESDCTL_COL(2))
+#define ESDCTL_SETTINGS (ESDCTL_ROW_COL | ESDCTL_SREFR(3) | \
+ ESDCTL_DSIZ(2) | ESDCTL_BL(1))
+#define ESDCTL_PRECHARGE (ESDCTL_ROW_COL | ESDCTL_CMD_PRECHARGE)
+#define ESDCTL_AUTOREFRESH (ESDCTL_ROW_COL | ESDCTL_CMD_AUTOREFRESH)
+#define ESDCTL_LOADMODEREG (ESDCTL_ROW_COL | ESDCTL_CMD_LOADMODEREG)
+#define ESDCTL_RW ESDCTL_SETTINGS
+
#endif /* __CONFIG_H */