Add support for the Samsung K9LAG08U0M NAND Flash (2-GiB MLC NAND Flash, 2-kiB
pages, 256-kiB blocks, 30-ns R/W cycles, 1 CS) on mx53ard.
eNFC_CLK_ROOT is set up with a cycle time of 37.5 ns (400 MHz / 3 / 5) for this
board, which satisfies the 30-ns NF R/W cycle requirement.
Signed-off-by: Benoît Thébaudeau <benoit.thebaud...@advansee.com>
Tested-by: Fabio Estevam <fabio.este...@freescale.com>
---
Changes in v11: None
Changes in v10: None
Changes in v9: None
Changes in v8:
- Fix NFC pad setup using Freescale's.
Changes in v7: None
Changes in v6: None
Changes in v5: None
Changes in v4: None
Changes in v3:
- New patch.
Changes in v2: None
board/freescale/mx53ard/mx53ard.c | 66 +++++++++++++++++++++++++++++++++++++
include/configs/mx53ard.h | 10 ++++++
2 files changed, 76 insertions(+)
diff --git a/board/freescale/mx53ard/mx53ard.c
b/board/freescale/mx53ard/mx53ard.c
index 2fc8570..8d433a3 100644
--- a/board/freescale/mx53ard/mx53ard.c
+++ b/board/freescale/mx53ard/mx53ard.c
@@ -58,6 +58,71 @@ void dram_init_banksize(void)
gd->bd->bi_dram[1].size = PHYS_SDRAM_2_SIZE;
}
+#ifdef CONFIG_NAND_MXC
+static void setup_iomux_nand(void)
+{
+ u32 i, reg;
+ #define M4IF_GENP_WEIM_MM_MASK 0x00000001
+ #define WEIM_GCR2_MUX16_BYP_GRANT_MASK 0x00001000
+
+ reg = __raw_readl(M4IF_BASE_ADDR + 0xc);
+ reg &= ~M4IF_GENP_WEIM_MM_MASK;
+ __raw_writel(reg, M4IF_BASE_ADDR + 0xc);
+ for (i = 0x4; i < 0x94; i += 0x18) {
+ reg = __raw_readl(WEIM_BASE_ADDR + i);
+ reg &= ~WEIM_GCR2_MUX16_BYP_GRANT_MASK;
+ __raw_writel(reg, WEIM_BASE_ADDR + i);
+ }
+
+ mxc_request_iomux(MX53_PIN_NANDF_CS0, IOMUX_CONFIG_ALT0);
+ mxc_iomux_set_pad(MX53_PIN_NANDF_CS0, PAD_CTL_DRV_HIGH);
+ mxc_request_iomux(MX53_PIN_NANDF_CS1, IOMUX_CONFIG_ALT0);
+ mxc_iomux_set_pad(MX53_PIN_NANDF_CS1, PAD_CTL_DRV_HIGH);
+ mxc_request_iomux(MX53_PIN_NANDF_RB0, IOMUX_CONFIG_ALT0);
+ mxc_iomux_set_pad(MX53_PIN_NANDF_RB0, PAD_CTL_PKE_ENABLE |
+ PAD_CTL_PUE_PULL | PAD_CTL_100K_PU);
+ mxc_request_iomux(MX53_PIN_NANDF_CLE, IOMUX_CONFIG_ALT0);
+ mxc_iomux_set_pad(MX53_PIN_NANDF_CLE, PAD_CTL_DRV_HIGH);
+ mxc_request_iomux(MX53_PIN_NANDF_ALE, IOMUX_CONFIG_ALT0);
+ mxc_iomux_set_pad(MX53_PIN_NANDF_ALE, PAD_CTL_DRV_HIGH);
+ mxc_request_iomux(MX53_PIN_NANDF_WP_B, IOMUX_CONFIG_ALT0);
+ mxc_iomux_set_pad(MX53_PIN_NANDF_WP_B, PAD_CTL_PKE_ENABLE |
+ PAD_CTL_PUE_PULL | PAD_CTL_100K_PU);
+ mxc_request_iomux(MX53_PIN_NANDF_RE_B, IOMUX_CONFIG_ALT0);
+ mxc_iomux_set_pad(MX53_PIN_NANDF_RE_B, PAD_CTL_DRV_HIGH);
+ mxc_request_iomux(MX53_PIN_NANDF_WE_B, IOMUX_CONFIG_ALT0);
+ mxc_iomux_set_pad(MX53_PIN_NANDF_WE_B, PAD_CTL_DRV_HIGH);
+ mxc_request_iomux(MX53_PIN_EIM_DA0, IOMUX_CONFIG_ALT0);
+ mxc_iomux_set_pad(MX53_PIN_EIM_DA0, PAD_CTL_PKE_ENABLE |
+ PAD_CTL_100K_PU | PAD_CTL_DRV_HIGH);
+ mxc_request_iomux(MX53_PIN_EIM_DA1, IOMUX_CONFIG_ALT0);
+ mxc_iomux_set_pad(MX53_PIN_EIM_DA1, PAD_CTL_PKE_ENABLE |
+ PAD_CTL_100K_PU | PAD_CTL_DRV_HIGH);
+ mxc_request_iomux(MX53_PIN_EIM_DA2, IOMUX_CONFIG_ALT0);
+ mxc_iomux_set_pad(MX53_PIN_EIM_DA2, PAD_CTL_PKE_ENABLE |
+ PAD_CTL_100K_PU | PAD_CTL_DRV_HIGH);
+ mxc_request_iomux(MX53_PIN_EIM_DA3, IOMUX_CONFIG_ALT0);
+ mxc_iomux_set_pad(MX53_PIN_EIM_DA3, PAD_CTL_PKE_ENABLE |
+ PAD_CTL_100K_PU | PAD_CTL_DRV_HIGH);
+ mxc_request_iomux(MX53_PIN_EIM_DA4, IOMUX_CONFIG_ALT0);
+ mxc_iomux_set_pad(MX53_PIN_EIM_DA4, PAD_CTL_PKE_ENABLE |
+ PAD_CTL_100K_PU | PAD_CTL_DRV_HIGH);
+ mxc_request_iomux(MX53_PIN_EIM_DA5, IOMUX_CONFIG_ALT0);
+ mxc_iomux_set_pad(MX53_PIN_EIM_DA5, PAD_CTL_PKE_ENABLE |
+ PAD_CTL_100K_PU | PAD_CTL_DRV_HIGH);
+ mxc_request_iomux(MX53_PIN_EIM_DA6, IOMUX_CONFIG_ALT0);
+ mxc_iomux_set_pad(MX53_PIN_EIM_DA6, PAD_CTL_PKE_ENABLE |
+ PAD_CTL_100K_PU | PAD_CTL_DRV_HIGH);
+ mxc_request_iomux(MX53_PIN_EIM_DA7, IOMUX_CONFIG_ALT0);
+ mxc_iomux_set_pad(MX53_PIN_EIM_DA7, PAD_CTL_PKE_ENABLE |
+ PAD_CTL_100K_PU | PAD_CTL_DRV_HIGH);
+}
+#else
+static void setup_iomux_nand(void)
+{
+}
+#endif
+
static void setup_iomux_uart(void)
{
/* UART1 RXD */
@@ -277,6 +342,7 @@ static void weim_cs1_settings(void)
int board_early_init_f(void)
{
+ setup_iomux_nand();
setup_iomux_uart();
return 0;
}
diff --git a/include/configs/mx53ard.h b/include/configs/mx53ard.h
index 62cb42b..148f7a2 100644
--- a/include/configs/mx53ard.h
+++ b/include/configs/mx53ard.h
@@ -41,6 +41,16 @@
#define CONFIG_BOARD_EARLY_INIT_F
#define CONFIG_MXC_GPIO
+#define CONFIG_SYS_MAX_NAND_DEVICE 1
+#define CONFIG_SYS_NAND_BASE NFC_BASE_ADDR_AXI
+#define CONFIG_NAND_MXC
+#define CONFIG_MXC_NAND_REGS_BASE NFC_BASE_ADDR_AXI
+#define CONFIG_MXC_NAND_IP_REGS_BASE NFC_BASE_ADDR
+#define CONFIG_SYS_NAND_LARGEPAGE
+#define CONFIG_MXC_NAND_HWECC
+#define CONFIG_SYS_NAND_USE_FLASH_BBT
+#define CONFIG_CMD_NAND
+
#define CONFIG_MXC_UART
#define CONFIG_MXC_UART_BASE UART1_BASE
--
1.7.10.4
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