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imx: mx53ard: Add support for NAND Flash 

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.thebaudeau@advansee.com>
Tested-by: Fabio Estevam <fabio.estevam@freescale.com>
This commit is contained in:
Benoît Thébaudeau 2013-04-11 09:35:39 +00:00 committed by Albert ARIBAUD
parent e78b140801
commit 68fbc0e686
2 changed files with 76 additions and 0 deletions
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66
board/freescale/mx53ard/mx53ard.c
View File

@ -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;
}

10
include/configs/mx53ard.h
View File

@ -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