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mx6slevk: Add SPI NOR flash support

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mx6slevk has a m25p32 SPI NOR flash connected to ESCSPI port.

Add support for it.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Acked-by: Marek Vasut <marex@denx.de>
Reviewed-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com>
This commit is contained in:
Fabio Estevam 2014-04-11 08:39:43 -03:00 committed by Stefano Babic
parent 0782bdf898
commit 694c3bc107
3 changed files with 36 additions and 0 deletions
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4
arch/arm/include/asm/arch-mx6/mx6sl_pins.h
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@ -10,6 +10,10 @@
#include <asm/imx-common/iomux-v3.h>
enum {
MX6_PAD_ECSPI1_MISO__ECSPI_MISO = IOMUX_PAD(0x0358, 0x0068, 0, 0x0684, 0, 0),
MX6_PAD_ECSPI1_MOSI__ECSPI_MOSI = IOMUX_PAD(0x035C, 0x006C, 0, 0x0688, 0, 0),
MX6_PAD_ECSPI1_SCLK__ECSPI_SCLK = IOMUX_PAD(0x0360, 0x0070, 0, 0x067C, 0, 0),
MX6_PAD_ECSPI1_SS0__GPIO4_IO11 = IOMUX_PAD(0x0364, 0x0074, 5, 0x0000, 0, 0),
MX6_PAD_SD2_CLK__USDHC2_CLK = IOMUX_PAD(0x055C, 0x0254, 0, 0x0000, 0, 0),
MX6_PAD_SD2_CMD__USDHC2_CMD = IOMUX_PAD(0x0560, 0x0258, 0, 0x0000, 0, 0),
MX6_PAD_SD2_DAT0__USDHC2_DAT0 = IOMUX_PAD(0x0564, 0x025C, 0, 0x0000, 0, 0),

20
board/freescale/mx6slevk/mx6slevk.c
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@ -34,6 +34,9 @@ DECLARE_GLOBAL_DATA_PTR;
PAD_CTL_PUS_100K_UP | PAD_CTL_SPEED_MED | \
PAD_CTL_DSE_40ohm | PAD_CTL_HYS)
#define SPI_PAD_CTRL (PAD_CTL_HYS | PAD_CTL_SPEED_MED | \
PAD_CTL_DSE_40ohm | PAD_CTL_SRE_FAST)
#define ETH_PHY_RESET IMX_GPIO_NR(4, 21)
int dram_init(void)
@ -71,6 +74,20 @@ static iomux_v3_cfg_t const fec_pads[] = {
MX6_PAD_FEC_TX_CLK__GPIO_4_21 | MUX_PAD_CTRL(NO_PAD_CTRL),
};
#ifdef CONFIG_MXC_SPI
static iomux_v3_cfg_t ecspi1_pads[] = {
MX6_PAD_ECSPI1_MISO__ECSPI_MISO | MUX_PAD_CTRL(SPI_PAD_CTRL),
MX6_PAD_ECSPI1_MOSI__ECSPI_MOSI | MUX_PAD_CTRL(SPI_PAD_CTRL),
MX6_PAD_ECSPI1_SCLK__ECSPI_SCLK | MUX_PAD_CTRL(SPI_PAD_CTRL),
MX6_PAD_ECSPI1_SS0__GPIO4_IO11 | MUX_PAD_CTRL(NO_PAD_CTRL),
};
static void setup_spi(void)
{
imx_iomux_v3_setup_multiple_pads(ecspi1_pads, ARRAY_SIZE(ecspi1_pads));
}
#endif
static void setup_iomux_uart(void)
{
imx_iomux_v3_setup_multiple_pads(uart1_pads, ARRAY_SIZE(uart1_pads));
@ -132,6 +149,9 @@ static int setup_fec(void)
int board_early_init_f(void)
{
setup_iomux_uart();
#ifdef CONFIG_MXC_SPI
setup_spi();
#endif
return 0;
}

12
include/configs/mx6slevk.h
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@ -10,6 +10,7 @@
#define __CONFIG_H
#include <asm/arch/imx-regs.h>
#include <asm/imx-common/gpio.h>
#include <linux/sizes.h>
#include "mx6_common.h"
@ -196,4 +197,15 @@
#define CONFIG_CMD_CACHE
#endif
#define CONFIG_CMD_SF
#ifdef CONFIG_CMD_SF
#define CONFIG_SPI_FLASH
#define CONFIG_SPI_FLASH_STMICRO
#define CONFIG_MXC_SPI
#define CONFIG_SF_DEFAULT_BUS 0
#define CONFIG_SF_DEFAULT_CS (0 | (IMX_GPIO_NR(4, 11) << 8))
#define CONFIG_SF_DEFAULT_SPEED 20000000
#define CONFIG_SF_DEFAULT_MODE SPI_MODE_0
#endif
#endif /* __CONFIG_H */