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armv8: layerscape: Enable EHCI access for LS1012A

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Program Central Security Unit (CSU) to grant access to USB 2.0
controller.

Signed-off-by: Ran Wang <ran.wang_1@nxp.com>
[YS: rewrite commit message]
Reviewed-by: York Sun <york.sun@nxp.com>
This commit is contained in:
Ran Wang 2018-08-10 15:00:00 +08:00 committed by York Sun
parent cd35855492
commit 9add5a4b75
2 changed files with 10 additions and 0 deletions
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9
arch/arm/cpu/armv8/fsl-layerscape/soc.c
View File

@ -11,6 +11,7 @@
#include <asm/io.h>
#include <asm/global_data.h>
#include <asm/arch-fsl-layerscape/config.h>
#include <asm/arch-fsl-layerscape/ns_access.h>
#include <asm/arch-fsl-layerscape/fsl_icid.h>
#ifdef CONFIG_LAYERSCAPE_NS_ACCESS
#include <fsl_csu.h>
@ -615,6 +616,14 @@ void fsl_lsch2_early_init_f(void)
CCI400_DVM_MESSAGE_REQ_EN | CCI400_SNOOP_REQ_EN);
}
/*
* Program Central Security Unit (CSU) to grant access
* permission for USB 2.0 controller
*/
#if defined(CONFIG_ARCH_LS1012A) && defined(CONFIG_USB_EHCI_FSL)
if (current_el() == 3)
set_devices_ns_access(CSU_CSLX_USB_2, CSU_ALL_RW);
#endif
/* Erratum */
erratum_a008850_early(); /* part 1 of 2 */
erratum_a009929();

1
arch/arm/include/asm/arch-fsl-layerscape/ns_access.h
View File

@ -39,6 +39,7 @@ enum csu_cslx_ind {
CSU_CSLX_ESDHC,
CSU_CSLX_IFC = 45,
CSU_CSLX_I2C1,
CSU_CSLX_USB_2,
CSU_CSLX_I2C3 = 48,
CSU_CSLX_I2C2,
CSU_CSLX_DUART2 = 50,