Title: RK3568 PCIe Entry L1.1 and L1.2 [Print This Page] Author: andy741228 Time: 11/9/2021 16:25 Title: RK3568 PCIe Entry L1.1 and L1.2 Hi Sirs,
In Linux Kernel driver, the driver don't support PCIe L1.1 and L1.2.
Could you please provide the sample code?
And I have check the TRM, the L1sub Status FSM don't have any description about the status.
Please provide the details register description.
ThanksAuthor: 时间的蝴蝶 Time: 11/22/2021 10:38
In the `Chapter 18 PCIe Controller` of `Rockchip RK3568 TRM Part2 V1.1-20210301.pdf`, all the descriptions of PCIe are already available.
Maybe you need to look at these entries: PCIE_CLIENT_POWER_CON, PCIE_CLIENT_POWER_STATUS.
时间的蝴蝶 Posted at 11/22/2021 10:38
In the `Chapter 18 PCIe Controller` of `Rockchip RK3568 TRM Part2 V1.1-20210301.pdf`, all the descri ...
Hi Sirs,
I have check the TRM. And Enable The RC and DUT L1.2.
And check the l1sub status, the status is 3.
[0x0300] 0x00230313 CLIENT_LTSSM_STATUS
[22:20] [ RW] pm_current_data_rate = 0x2
[ 17] [ RW] rdlh_link_up = 0x1
[ 16] [ RW] smlh_link_up = 0x1
[10:08] [ RW] l1sub_state = 0x3
[05:00] [ RW] smlh_ltssm_state = 0x13