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fix(imx8ulp): fix suspend/resume issue when DBD owner is s400 only

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After resume from APD power down, XRDC is initialized by S400 but
the PAC2 and MSC0-2 are not configured, so only DBD owner can access
the resources.

We have to move GPIO restore after TFA XRDC reinit and configure
PDAC for PCC5 before enabling eDMA2 MP clock

Signed-off-by: Ye Li <ye.li@nxp.com>
Signed-off-by: Jacky Bai <ping.bai@nxp.com>
Change-Id: I82748de080151b0bdf1cace092b7892a1e402a27
This commit is contained in:
Ye Li 2022-11-21 11:20:35 +08:00 • committed by Jacky Bai
parent d159c00532
commit 68f132b88b
2 changed files with 6 additions and 2 deletions
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5
plat/imx/imx8ulp/apd_context.c
View file

@ -558,12 +558,13 @@ void imx_apd_ctx_restore(unsigned int proc_num)
iomuxc_restore(); iomuxc_restore();
gpio_restore(apd_gpio_ctx, APD_GPIO_CTRL_NUM);
tpm5_restore(); tpm5_restore();
xrdc_reinit(); xrdc_reinit();
/* Restore GPIO after xrdc_reinit, otherwise MSCs are invalid */
gpio_restore(apd_gpio_ctx, APD_GPIO_CTRL_NUM);
/* restore the gic config */ /* restore the gic config */
plat_gic_restore(proc_num, &imx_gicv3_ctx); plat_gic_restore(proc_num, &imx_gicv3_ctx);

3
plat/imx/imx8ulp/xrdc/xrdc_core.c
View file

@ -303,6 +303,9 @@ static int xrdc_apply_config(xrdc_check_func check_func)
int xrdc_apply_lpav_config(void) int xrdc_apply_lpav_config(void)
{ {
/* Configure PAC2 to allow to access PCC5 */
xrdc_config_pac(2, 39, 0xe00000);
/* Enable the eDMA2 MP clock for MDA16 access */ /* Enable the eDMA2 MP clock for MDA16 access */
mmio_write_32(IMX_PCC5_BASE + 0x0, 0xc0000000); mmio_write_32(IMX_PCC5_BASE + 0x0, 0xc0000000);
return xrdc_apply_config(xrdc_check_lpav); return xrdc_apply_config(xrdc_check_lpav);