mirrors/u-boot
1
0
Fork 0
mirror of https://source.denx.de/u-boot/u-boot.git synced 2025-09-28 17:21:36 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity

arm: imx8ulp: add trdc release request

Browse Source 
Add TRDC release request, then we could configure resources to be
accessible by A35 Domain.

Signed-off-by: Peng Fan <peng.fan@nxp.com>
This commit is contained in:
Peng Fan 2021-08-07 16:00:57 +08:00 committed by Stefano Babic
parent 367ff4bc84
commit 3df564993e
1 changed files with 17 additions and 9 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

26
arch/arm/mach-imx/imx8ulp/soc.c
View File

@ -344,17 +344,23 @@ static void set_core0_reset_vector(u32 entry)
setbits_le32(SIM1_BASE_ADDR + 0x8, (0x1 << 26)); 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; ulong s_mu_base = 0x27020000UL;
struct imx8ulp_s400_msg msg; struct imx8ulp_s400_msg msg;
int ret; int ret;
u32 rdc_id = (type == RDC_XRDC) ? 0x78 : 0x74;
msg.version = AHAB_VERSION; msg.version = AHAB_VERSION;
msg.tag = AHAB_CMD_TAG; msg.tag = AHAB_CMD_TAG;
msg.size = 2; msg.size = 2;
msg.command = AHAB_RELEASE_RDC_REQ_CID; 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_init(s_mu_base);
mu_hal_sendmsg(s_mu_base, 0, *((u32 *)&msg)); 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); ret = mu_hal_receivemsg(s_mu_base, 0, (u32 *)&msg);
if (!ret) { if (!ret) {
ret = mu_hal_receivemsg(s_mu_base, 1, &msg.data[0]); ret = mu_hal_receivemsg(s_mu_base, 1, &msg.data[0]);
if (!ret) if (!ret) {
return ret; if ((msg.data[0] & 0xff) == 0xd6)
return 0;
}
if ((msg.data[0] & 0xff) == 0) return -EIO;
return 0;
else
return -EIO;
} }
return ret; return ret;
@ -423,8 +428,11 @@ int arch_cpu_init(void)
/* Disable wdog */ /* Disable wdog */
init_wdog(); init_wdog();
if (get_boot_mode() == SINGLE_BOOT)
release_rdc(RDC_TRDC);
/* release xrdc, then allow A35 to write SRAM2 */ /* 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); xrdc_mrc_region_set_access(2, CONFIG_SPL_TEXT_BASE, 0xE00);
clock_init(); clock_init();