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arm: socfpga: stratix10: Add generic FPGA reconfig mailbox API for S10

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Add a generic mailbox API for FPGA reconfig status which can be
called by others. This new function accepts 2 different mailbox
commands: CONFIG_STATUS or RECONFIG_STATUS.

Signed-off-by: Ang, Chee Hong <chee.hong.ang@intel.com>
This commit is contained in:
Ang, Chee Hong 2018-12-19 18:35:12 -08:00 committed by Marek Vasut
parent 1f2e948d6d
commit d99f1e92a2
2 changed files with 50 additions and 1 deletions
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3
arch/arm/mach-socfpga/include/mach/mailbox_s10.h
View File

@ -140,5 +140,6 @@ int mbox_qspi_open(void);
#endif
int mbox_reset_cold(void);
int mbox_get_fpga_config_status(u32 cmd);
int mbox_get_fpga_config_status_psci(u32 cmd);
#endif /* _MAILBOX_S10_H_ */

48
arch/arm/mach-socfpga/mailbox_s10.c
View File

@ -342,6 +342,54 @@ int mbox_reset_cold(void)
return 0;
}
/* Accepted commands: CONFIG_STATUS or RECONFIG_STATUS */
static __always_inline int mbox_get_fpga_config_status_common(u32 cmd)
{
u32 reconfig_status_resp_len;
u32 reconfig_status_resp[RECONFIG_STATUS_RESPONSE_LEN];
int ret;
reconfig_status_resp_len = RECONFIG_STATUS_RESPONSE_LEN;
ret = mbox_send_cmd_common(MBOX_ID_UBOOT, cmd,
MBOX_CMD_DIRECT, 0, NULL, 0,
&reconfig_status_resp_len,
reconfig_status_resp);
if (ret)
return ret;
/* Check for any error */
ret = reconfig_status_resp[RECONFIG_STATUS_STATE];
if (ret && ret != MBOX_CFGSTAT_STATE_CONFIG)
return ret;
/* Make sure nStatus is not 0 */
ret = reconfig_status_resp[RECONFIG_STATUS_PIN_STATUS];
if (!(ret & RCF_PIN_STATUS_NSTATUS))
return MBOX_CFGSTAT_STATE_ERROR_HARDWARE;
ret = reconfig_status_resp[RECONFIG_STATUS_SOFTFUNC_STATUS];
if (ret & RCF_SOFTFUNC_STATUS_SEU_ERROR)
return MBOX_CFGSTAT_STATE_ERROR_HARDWARE;
if ((ret & RCF_SOFTFUNC_STATUS_CONF_DONE) &&
(ret & RCF_SOFTFUNC_STATUS_INIT_DONE) &&
!reconfig_status_resp[RECONFIG_STATUS_STATE])
return 0; /* configuration success */
return MBOX_CFGSTAT_STATE_CONFIG;
}
int mbox_get_fpga_config_status(u32 cmd)
{
return mbox_get_fpga_config_status_common(cmd);
}
int __secure mbox_get_fpga_config_status_psci(u32 cmd)
{
return mbox_get_fpga_config_status_common(cmd);
}
int mbox_send_cmd(u8 id, u32 cmd, u8 is_indirect, u32 len, u32 *arg,
u8 urgent, u32 *resp_buf_len, u32 *resp_buf)
{