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zynqmp: Introduce zynqmp_get_bootmode

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Provide a function to retrieve the bootmode.

Signed-off-by: Soren Brinkmann <soren.brinkmann@xilinx.com>
Acked-by: Michal Simek <michal.simek@xilinx.com>
This commit is contained in:
Soren Brinkmann
2016-04-18 11:49:42 -07:00
parent e543e79b2d
commit 2cb5bac984
3 changed files with 12 additions and 0 deletions
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7
plat/xilinx/zynqmp/aarch64/zynqmp_common.c
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@@ -271,6 +271,13 @@ int zynqmp_is_pmu_up(void)
return zynqmp_pmufw_present;
}
unsigned int zynqmp_get_bootmode(void)
{
uint32_t r = mmio_read_32(CRL_APB_BOOT_MODE_USER);
return r & CRL_APB_BOOT_MODE_MASK;
}
void zynqmp_config_setup(void)
{
zynqmp_discover_pmufw();

4
plat/xilinx/zynqmp/zynqmp_def.h
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@@ -63,6 +63,7 @@
#define CRL_APB_BASE 0xFF5E0000
#define CRL_APB_RPLL_CTRL (CRL_APB_BASE + 0x30)
#define CRL_APB_TIMESTAMP_REF_CTRL (CRL_APB_BASE + 0x128)
#define CRL_APB_BOOT_MODE_USER (CRL_APB_BASE + 0x200)
#define CRL_APB_RESET_CTRL (CRL_APB_BASE + 0x218)
#define CRL_APB_TIMESTAMP_REF_CTRL_CLKACT_BIT (1 << 24)
@@ -71,6 +72,9 @@
#define CRL_APB_RESET_CTRL_SOFT_RESET (1 << 4)
#define CRL_APB_BOOT_MODE_MASK (0xf << 0)
#define ZYNQMP_BOOTMODE_JTAG 0
/* system counter registers and bitfields */
#define IOU_SCNTRS_BASE 0xFF260000
#define IOU_SCNTRS_CONTROL (IOU_SCNTRS_BASE + 0)

1
plat/xilinx/zynqmp/zynqmp_private.h
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@@ -38,5 +38,6 @@ void zynqmp_config_setup(void);
/* ZynqMP specific functions */
unsigned int zynqmp_get_uart_clk(void);
int zynqmp_is_pmu_up(void);
unsigned int zynqmp_get_bootmode(void);
#endif /* __ZYNQMP_PRIVATE_H__ */