Add support for SATA.
Cc: Igor Grinberg grinberg@compulab.co.il Cc: Stefano Babic sbabic@denx.de Cc: Tom Rini trini@ti.com Signed-off-by: Nikita Kiryanov nikita@compulab.co.il --- Changes in V2: - No changes
board/compulab/cm_fx6/cm_fx6.c | 90 ++++++++++++++++++++++++++++++++++++++++++ board/compulab/cm_fx6/common.h | 13 ++++++ include/configs/cm_fx6.h | 36 ++++++++++++++++- 3 files changed, 138 insertions(+), 1 deletion(-)
diff --git a/board/compulab/cm_fx6/cm_fx6.c b/board/compulab/cm_fx6/cm_fx6.c index 76d7430..8a48f9d 100644 --- a/board/compulab/cm_fx6/cm_fx6.c +++ b/board/compulab/cm_fx6/cm_fx6.c @@ -12,10 +12,12 @@ #include <miiphy.h> #include <netdev.h> #include <fdt_support.h> +#include <sata.h> #include <asm/arch/crm_regs.h> #include <asm/arch/sys_proto.h> #include <asm/arch/iomux.h> #include <asm/imx-common/mxc_i2c.h> +#include <asm/imx-common/sata.h> #include <asm/io.h> #include <asm/gpio.h> #include "common.h" @@ -23,6 +25,94 @@
DECLARE_GLOBAL_DATA_PTR;
+#ifdef CONFIG_DWC_AHSATA +static int cm_fx6_issd_gpios[] = { + /* The order of the GPIOs in the array is important! */ + CM_FX6_SATA_PHY_SLP, + CM_FX6_SATA_NRSTDLY, + CM_FX6_SATA_PWREN, + CM_FX6_SATA_NSTANDBY1, + CM_FX6_SATA_NSTANDBY2, + CM_FX6_SATA_LDO_EN, +}; + +static void cm_fx6_sata_power(int on) +{ + int i; + + if (!on) { /* tell the iSSD that the power will be removed */ + gpio_direction_output(CM_FX6_SATA_PWLOSS_INT, 1); + mdelay(10); + } + + for (i = 0; i < ARRAY_SIZE(cm_fx6_issd_gpios); i++) { + gpio_direction_output(cm_fx6_issd_gpios[i], on); + udelay(100); + } + + if (!on) /* for compatibility lower the power loss interrupt */ + gpio_direction_output(CM_FX6_SATA_PWLOSS_INT, 0); +} + +static iomux_v3_cfg_t const sata_pads[] = { + /* SATA PWR */ + IOMUX_PADS(PAD_ENET_TX_EN__GPIO1_IO28 | MUX_PAD_CTRL(NO_PAD_CTRL)), + IOMUX_PADS(PAD_EIM_A22__GPIO2_IO16 | MUX_PAD_CTRL(NO_PAD_CTRL)), + IOMUX_PADS(PAD_EIM_D20__GPIO3_IO20 | MUX_PAD_CTRL(NO_PAD_CTRL)), + IOMUX_PADS(PAD_EIM_A25__GPIO5_IO02 | MUX_PAD_CTRL(NO_PAD_CTRL)), + /* SATA CTRL */ + IOMUX_PADS(PAD_ENET_TXD0__GPIO1_IO30 | MUX_PAD_CTRL(NO_PAD_CTRL)), + IOMUX_PADS(PAD_EIM_D23__GPIO3_IO23 | MUX_PAD_CTRL(NO_PAD_CTRL)), + IOMUX_PADS(PAD_EIM_D29__GPIO3_IO29 | MUX_PAD_CTRL(NO_PAD_CTRL)), + IOMUX_PADS(PAD_EIM_A23__GPIO6_IO06 | MUX_PAD_CTRL(NO_PAD_CTRL)), + IOMUX_PADS(PAD_EIM_BCLK__GPIO6_IO31 | MUX_PAD_CTRL(NO_PAD_CTRL)), + +}; + +static void cm_fx6_setup_issd(void) +{ + SETUP_IOMUX_PADS(sata_pads); + /* Make sure this gpio has logical 0 value */ + gpio_direction_output(CM_FX6_SATA_PWLOSS_INT, 0); + udelay(100); + + cm_fx6_sata_power(0); + mdelay(250); + cm_fx6_sata_power(1); +} + +#define CM_FX6_SATA_INIT_RETRIES 10 +int sata_initialize(void) +{ + int err, i; + + cm_fx6_setup_issd(); + for (i = 0; i < CM_FX6_SATA_INIT_RETRIES; i++) { + err = setup_sata(); + if (err) { + printf("SATA setup failed: %d\n", err); + return err; + } + + udelay(100); + + err = __sata_initialize(); + if (!err) + break; + + /* There is no device on the SATA port */ + if (sata_port_status(0, 0) == 0) + break; + + /* There's a device, but link not established. Retry */ + } + + return err; +} +#else +static void cm_fx6_setup_issd(void) {} +#endif + #ifdef CONFIG_SYS_I2C_MXC #define I2C_PAD_CTRL (PAD_CTL_PUS_100K_UP | PAD_CTL_SPEED_MED | \ PAD_CTL_DSE_40ohm | PAD_CTL_HYS | \ diff --git a/board/compulab/cm_fx6/common.h b/board/compulab/cm_fx6/common.h index bd04d62..ddccffb 100644 --- a/board/compulab/cm_fx6/common.h +++ b/board/compulab/cm_fx6/common.h @@ -19,6 +19,19 @@ #define CM_FX6_ENET_NRST IMX_GPIO_NR(2, 8) #define CM_FX6_USB_HUB_RST IMX_GPIO_NR(7, 8) #define SB_FX6_USB_OTG_PWR IMX_GPIO_NR(3, 22) +#define CM_FX6_ENET_NRST IMX_GPIO_NR(2, 8) +#define CM_FX6_USB_HUB_RST IMX_GPIO_NR(7, 8) +#define SB_FX6_USB_OTG_PWR IMX_GPIO_NR(3, 22) +#define CM_FX6_SATA_PWREN IMX_GPIO_NR(1, 28) +#define CM_FX6_SATA_VDDC_CTRL IMX_GPIO_NR(1, 30) +#define CM_FX6_SATA_LDO_EN IMX_GPIO_NR(2, 16) +#define CM_FX6_SATA_NSTANDBY1 IMX_GPIO_NR(3, 20) +#define CM_FX6_SATA_PHY_SLP IMX_GPIO_NR(3, 23) +#define CM_FX6_SATA_STBY_REQ IMX_GPIO_NR(3, 29) +#define CM_FX6_SATA_NSTANDBY2 IMX_GPIO_NR(5, 2) +#define CM_FX6_SATA_NRSTDLY IMX_GPIO_NR(6, 6) +#define CM_FX6_SATA_PWLOSS_INT IMX_GPIO_NR(6, 31) +
#if defined(CONFIG_FSL_ESDHC) #include <fsl_esdhc.h> diff --git a/include/configs/cm_fx6.h b/include/configs/cm_fx6.h index adfd55e..88925cd 100644 --- a/include/configs/cm_fx6.h +++ b/include/configs/cm_fx6.h @@ -132,6 +132,19 @@ "mmcboot=echo Booting from mmc ...; " \ "run mmcargs; " \ "run doboot\0" \ + "satadev=0\0" \ + "sataroot=/dev/sda2 rw rootwait\0" \ + "sataargs=setenv bootargs console=${console} " \ + "root=${sataroot} " \ + "${video}\0" \ + "loadsatabootscript=fatload sata ${satadev} ${loadaddr} ${bootscr}\0" \ + "satabootscript=echo Running bootscript from sata ...; " \ + "source ${loadaddr}\0" \ + "sataloadkernel=fatload sata ${satadev} ${loadaddr} ${kernel}\0" \ + "sataloadfdt=fatload sata ${satadev} ${fdtaddr} ${fdtfile}\0" \ + "sataboot=echo Booting from sata ...; "\ + "run sataargs; " \ + "run doboot\0" \ "nandroot=/dev/mtdblock4 rw\0" \ "nandrootfstype=ubifs\0" \ "nandargs=setenv bootargs console=${console} " \ @@ -158,7 +171,19 @@ "run mmcboot;" \ "fi;" \ "fi;" \ - "fi;" + "fi;" \ + "if sata init; then " \ + "if run loadsatabootscript; then " \ + "run satabootscript;" \ + "else "\ + "if run sataloadkernel; then " \ + "if ${loadfdt}; then " \ + "run sataloadfdt; " \ + "fi;" \ + "run sataboot;" \ + "fi;" \ + "fi;" \ + "fi;\0"
#define CONFIG_BOOTCOMMAND \ "run setboottypem; run boot" @@ -224,6 +249,15 @@ #define CONFIG_SYS_I2C_EEPROM_ADDR_LEN 1 #define CONFIG_SYS_I2C_EEPROM_BUS 2
+/* SATA */ +#define CONFIG_CMD_SATA +#define CONFIG_SYS_SATA_MAX_DEVICE 1 +#define CONFIG_LIBATA +#define CONFIG_LBA48 +#define CONFIG_DWC_AHSATA +#define CONFIG_DWC_AHSATA_PORT_ID 0 +#define CONFIG_DWC_AHSATA_BASE_ADDR SATA_ARB_BASE_ADDR + /* GPIO */ #define CONFIG_MXC_GPIO