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arm64: zynqmp: Return pmufw version for zynqmp_pmufw_version()

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Modify the zynqmp_pmufw_version() routine to return PMUFW version so
that it can be reused wherever required. Get PMUFW version from PMU
only once at bootup and later just return stored value.

Signed-off-by: Siva Durga Prasad Paladugu <siva.durga.paladugu@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
This commit is contained in:
Siva Durga Prasad Paladugu 2018-08-21 15:44:49 +05:30 committed by Michal Simek
parent fe68f2332d
commit b94a8271cc
3 changed files with 28 additions and 16 deletions
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29
arch/arm/cpu/armv8/zynqmp/cpu.c
View file

@ -172,26 +172,27 @@ int __maybe_unused invoke_smc(u32 pm_api_id, u32 arg0, u32 arg1, u32 arg2,
}
#if defined(CONFIG_CLK_ZYNQMP)
void zynqmp_pmufw_version(void)
unsigned int zynqmp_pmufw_version(void)
{
int ret;
u32 ret_payload[PAYLOAD_ARG_CNT];
u32 pm_api_version;
static u32 pm_api_version = ZYNQMP_PM_VERSION_INVALID;
ret = invoke_smc(ZYNQMP_SIP_SVC_GET_API_VERSION, 0, 0, 0, 0,
ret_payload);
pm_api_version = ret_payload[1];
/*
* Get PMU version only once and later
* just return stored values instead of
* asking PMUFW again.
*/
if (pm_api_version == ZYNQMP_PM_VERSION_INVALID) {
ret = invoke_smc(ZYNQMP_SIP_SVC_GET_API_VERSION, 0, 0, 0, 0,
ret_payload);
pm_api_version = ret_payload[1];
if (ret)
panic("PMUFW is not found - Please load it!\n");
if (ret)
panic("PMUFW is not found - Please load it!\n");
}
printf("PMUFW:\tv%d.%d\n",
pm_api_version >> ZYNQMP_PM_VERSION_MAJOR_SHIFT,
pm_api_version & ZYNQMP_PM_VERSION_MINOR_MASK);
if (pm_api_version < ZYNQMP_PM_VERSION)
panic("PMUFW version error. Expected: v%d.%d\n",
ZYNQMP_PM_VERSION_MAJOR, ZYNQMP_PM_VERSION_MINOR);
return pm_api_version;
}
#endif

4
arch/arm/include/asm/arch-zynqmp/sys_proto.h
View file

@ -32,6 +32,8 @@
((ZYNQMP_PM_VERSION_MAJOR << ZYNQMP_PM_VERSION_MAJOR_SHIFT) | \
ZYNQMP_PM_VERSION_MINOR)
#define ZYNQMP_PM_VERSION_INVALID ~0
enum {
IDCODE,
VERSION,
@ -55,7 +57,7 @@ unsigned int zynqmp_get_silicon_version(void);
void handoff_setup(void);
void zynqmp_pmufw_version(void);
unsigned int zynqmp_pmufw_version(void);
int zynqmp_mmio_write(const u32 address, const u32 mask, const u32 value);
int zynqmp_mmio_read(const u32 address, u32 *value);
int invoke_smc(u32 pm_api_id, u32 arg0, u32 arg1, u32 arg2, u32 arg3,

11
board/xilinx/zynqmp/zynqmp.c
View file

@ -281,7 +281,16 @@ int board_early_init_f(void)
{
int ret = 0;
#if !defined(CONFIG_SPL_BUILD) && defined(CONFIG_CLK_ZYNQMP)
zynqmp_pmufw_version();
u32 pm_api_version;
pm_api_version = zynqmp_pmufw_version();
printf("PMUFW:\tv%d.%d\n",
pm_api_version >> ZYNQMP_PM_VERSION_MAJOR_SHIFT,
pm_api_version & ZYNQMP_PM_VERSION_MINOR_MASK);
if (pm_api_version < ZYNQMP_PM_VERSION)
panic("PMUFW version error. Expected: v%d.%d\n",
ZYNQMP_PM_VERSION_MAJOR, ZYNQMP_PM_VERSION_MINOR);
#endif
#if defined(CONFIG_ZYNQMP_PSU_INIT_ENABLED)