Commit 3df56499 authored by Peng Fan's avatar Peng Fan Committed by Stefano Babic
Browse files

arm: imx8ulp: add trdc release request



Add TRDC release request, then we could configure resources to be
accessible by A35 Domain.
Signed-off-by: Peng Fan's avatarPeng Fan <peng.fan@nxp.com>
parent 367ff4bc
......@@ -344,17 +344,23 @@ static void set_core0_reset_vector(u32 entry)
setbits_le32(SIM1_BASE_ADDR + 0x8, (0x1 << 26));
}
static int release_xrdc(void)
enum rdc_type {
RDC_TRDC,
RDC_XRDC,
};
static int release_rdc(enum rdc_type type)
{
ulong s_mu_base = 0x27020000UL;
struct imx8ulp_s400_msg msg;
int ret;
u32 rdc_id = (type == RDC_XRDC) ? 0x78 : 0x74;
msg.version = AHAB_VERSION;
msg.tag = AHAB_CMD_TAG;
msg.size = 2;
msg.command = AHAB_RELEASE_RDC_REQ_CID;
msg.data[0] = (0x78 << 8) | 0x2; /* A35 XRDC */
msg.data[0] = (rdc_id << 8) | 0x2; /* A35 XRDC */
mu_hal_init(s_mu_base);
mu_hal_sendmsg(s_mu_base, 0, *((u32 *)&msg));
......@@ -363,13 +369,12 @@ static int release_xrdc(void)
ret = mu_hal_receivemsg(s_mu_base, 0, (u32 *)&msg);
if (!ret) {
ret = mu_hal_receivemsg(s_mu_base, 1, &msg.data[0]);
if (!ret)
return ret;
if (!ret) {
if ((msg.data[0] & 0xff) == 0xd6)
return 0;
}
if ((msg.data[0] & 0xff) == 0)
return 0;
else
return -EIO;
return -EIO;
}
return ret;
......@@ -423,8 +428,11 @@ int arch_cpu_init(void)
/* Disable wdog */
init_wdog();
if (get_boot_mode() == SINGLE_BOOT)
release_rdc(RDC_TRDC);
/* release xrdc, then allow A35 to write SRAM2 */
release_xrdc();
release_rdc(RDC_XRDC);
xrdc_mrc_region_set_access(2, CONFIG_SPL_TEXT_BASE, 0xE00);
clock_init();
......
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