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arm64: versal-net: Detect and display bootmode

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Read boodmode register using versal_net_get_bootmode() in board_late_init
and prepare corresponding distro boot command sequence based on it.

versal_net_get_bootmode() will be changed to use smc calls later, but
for now directly reads the register.

Signed-off-by: Ashok Reddy Soma <ashok.reddy.soma@amd.com>
Link: https://lore.kernel.org/r/20230516144753.30869-1-ashok.reddy.soma@amd.com
Signed-off-by: Michal Simek <michal.simek@amd.com>
This commit is contained in:
Ashok Reddy Soma
2023-05-16 08:47:53 -06:00
committed by Michal Simek
parent addd47379d
commit ded539ff66
2 changed files with 135 additions and 0 deletions
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21
arch/arm/mach-versal-net/include/mach/hardware.h
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@@ -27,7 +27,13 @@ struct iou_scntrs_regs {
u32 base_frequency_id_register; /* 0x20 */
};
struct crp_regs {
u32 reserved0[128];
u32 boot_mode_usr; /* 0x200 */
};
#define VERSAL_NET_CRL_APB_BASEADDR 0xEB5E0000
#define VERSAL_NET_CRP_BASEADDR 0xF1260000
#define VERSAL_NET_IOU_SCNTR_SECURE 0xEC920000
#define CRL_APB_TIMESTAMP_REF_CTRL_CLKACT_BIT BIT(25)
@@ -36,6 +42,7 @@ struct iou_scntrs_regs {
#define IOU_SCNTRS_CONTROL_EN 1
#define crlapb_base ((struct crlapb_regs *)VERSAL_NET_CRL_APB_BASEADDR)
#define crp_base ((struct crp_regs *)VERSAL_NET_CRP_BASEADDR)
#define iou_scntr_secure ((struct iou_scntrs_regs *)VERSAL_NET_IOU_SCNTR_SECURE)
#define PMC_TAP 0xF11A0000
@@ -49,6 +56,20 @@ struct iou_scntrs_regs {
# define PLATFORM_VERSION_MASK GENMASK(31, 28)
#define PMC_TAP_USERCODE (PMC_TAP + 0x8)
/* Bootmode setting values */
#define BOOT_MODES_MASK 0x0000000F
#define QSPI_MODE_24BIT 0x00000001
#define QSPI_MODE_32BIT 0x00000002
#define SD_MODE 0x00000003 /* sd 0 */
#define SD_MODE1 0x00000005 /* sd 1 */
#define EMMC_MODE 0x00000006
#define USB_MODE 0x00000007
#define OSPI_MODE 0x00000008
#define SD1_LSHFT_MODE 0x0000000E /* SD1 Level shifter */
#define JTAG_MODE 0x00000000
#define BOOT_MODE_USE_ALT 0x100
#define BOOT_MODE_ALT_SHIFT 12
enum versal_net_platform {
VERSAL_NET_SILICON = 0,
VERSAL_NET_SPP = 1,