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imx: Use IMX6_BMODE_* macros instead of numericals 

Use meaningful macros IMX6_BMODE_*, instead of numerical
number in boot mode detection code.

Cc: Tim Harvey <tharvey@gateworks.com>
Acked-by: Stefano Babic <sbabic@denx.de>
Signed-off-by: Jagan Teki <jagan@openedev.com>
This commit is contained in:
Jagan Teki 2017-02-24 15:45:14 +05:30 committed by Stefano Babic
parent 20f1471416
commit 96aac843b6
2 changed files with 60 additions and 15 deletions
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40
arch/arm/imx-common/spl.c
View File

@ -29,42 +29,52 @@ u32 spl_boot_device(void)
*/
if (((bmode >> 24) & 0x03) == 0x01) /* Serial Downloader */
return BOOT_DEVICE_UART;
/* BOOT_CFG1[7:4] - see IMX6DQRM Table 8-8 */
switch ((reg & 0x000000FF) >> 4) {
switch ((reg & IMX6_BMODE_MASK) >> IMX6_BMODE_SHIFT) {
/* EIM: See 8.5.1, Table 8-9 */
case 0x0:
case IMX6_BMODE_EMI:
/* BOOT_CFG1[3]: NOR/OneNAND Selection */
if ((reg & 0x00000008) >> 3)
switch ((reg & IMX6_BMODE_EMI_MASK) >> IMX6_BMODE_EMI_SHIFT) {
case IMX6_BMODE_ONENAND:
return BOOT_DEVICE_ONENAND;
else
case IMX6_BMODE_NOR:
return BOOT_DEVICE_NOR;
break;
}
/* Reserved: Used to force Serial Downloader */
case 0x1:
case IMX6_BMODE_UART:
return BOOT_DEVICE_UART;
/* SATA: See 8.5.4, Table 8-20 */
case 0x2:
case IMX6_BMODE_SATA:
return BOOT_DEVICE_SATA;
/* Serial ROM: See 8.5.5.1, Table 8-22 */
case 0x3:
case IMX6_BMODE_SERIAL_ROM:
/* BOOT_CFG4[2:0] */
switch ((reg & 0x07000000) >> 24) {
case 0x0 ... 0x4:
switch ((reg & IMX6_BMODE_SERIAL_ROM_MASK) >>
IMX6_BMODE_SERIAL_ROM_SHIFT) {
case IMX6_BMODE_ECSPI1:
case IMX6_BMODE_ECSPI2:
case IMX6_BMODE_ECSPI3:
case IMX6_BMODE_ECSPI4:
case IMX6_BMODE_ECSPI5:
return BOOT_DEVICE_SPI;
case 0x5 ... 0x7:
case IMX6_BMODE_I2C1:
case IMX6_BMODE_I2C2:
case IMX6_BMODE_I2C3:
return BOOT_DEVICE_I2C;
}
break;
/* SD/eSD: 8.5.3, Table 8-15 */
case 0x4:
case 0x5:
case IMX6_BMODE_SD:
case IMX6_BMODE_ESD:
return BOOT_DEVICE_MMC1;
/* MMC/eMMC: 8.5.3 */
case 0x6:
case 0x7:
case IMX6_BMODE_MMC:
case IMX6_BMODE_EMMC:
return BOOT_DEVICE_MMC1;
/* NAND Flash: 8.5.2, Table 8-10 */
case 0x8:
case IMX6_BMODE_NAND:
return BOOT_DEVICE_NAND;
}
return BOOT_DEVICE_NONE;

35
arch/arm/include/asm/imx-common/sys_proto.h
View File

@ -44,6 +44,41 @@
#ifdef CONFIG_MX6
#define IMX6_SRC_GPR10_BMODE BIT(28)
#define IMX6_BMODE_MASK GENMASK(7, 0)
#define IMX6_BMODE_SHIFT 4
#define IMX6_BMODE_EMI_MASK BIT(3)
#define IMX6_BMODE_EMI_SHIFT 3
#define IMX6_BMODE_SERIAL_ROM_MASK GENMASK(26, 24)
#define IMX6_BMODE_SERIAL_ROM_SHIFT 24
enum imx6_bmode_serial_rom {
IMX6_BMODE_ECSPI1,
IMX6_BMODE_ECSPI2,
IMX6_BMODE_ECSPI3,
IMX6_BMODE_ECSPI4,
IMX6_BMODE_ECSPI5,
IMX6_BMODE_I2C1,
IMX6_BMODE_I2C2,
IMX6_BMODE_I2C3,
};
enum imx6_bmode_emi {
IMX6_BMODE_ONENAND,
IMX6_BMODE_NOR,
};
enum imx6_bmode {
IMX6_BMODE_EMI,
IMX6_BMODE_UART,
IMX6_BMODE_SATA,
IMX6_BMODE_SERIAL_ROM,
IMX6_BMODE_SD,
IMX6_BMODE_ESD,
IMX6_BMODE_MMC,
IMX6_BMODE_EMMC,
IMX6_BMODE_NAND,
};
static inline u8 imx6_is_bmode_from_gpr9(void)
{
struct src *psrc = (struct src *)SRC_BASE_ADDR;