From 088d7496885148f6d953a709988ab3ac1c2919a8 Mon Sep 17 00:00:00 2001 From: Jae Hyun Yoo Date: Tue, 8 Jan 2019 13:33:15 -0800 Subject: [PATCH] Enable PCIe L1 support This commit enables PCIe L1 support using magic registers. Signed-off-by: Jae Hyun Yoo --- arch/arm/mach-aspeed/platform_g5.S | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/arch/arm/mach-aspeed/platform_g5.S b/arch/arm/mach-aspeed/platform_g5.S index 66427b6f33..b4043534b0 100644 --- a/arch/arm/mach-aspeed/platform_g5.S +++ b/arch/arm/mach-aspeed/platform_g5.S @@ -2432,6 +2432,18 @@ spi_cbr_end: bic r1, r1, #0x00400000 str r1, [r0] + ldr r0, =0x1e6ed07c @ Enable PCIe L1 support + ldr r1, =0xa8 + str r1, [r0] + + ldr r0, =0x1e6ed068 + ldr r1, =0xc81f0a + str r1, [r0] + + ldr r0, =0x1e6ed07c + mov r1, #0 + str r1, [r0] + /****************************************************************************** Configure MAC timing ******************************************************************************/