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 --- 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