From 8626cb8021d92603cb6a305fb686510a8d14d6bd Mon Sep 17 00:00:00 2001
From: Lokesh Vutla <lokeshvutla@ti.com>
Date: Thu, 8 Oct 2015 11:31:47 +0530
Subject: ARM: k2e/l: Apply WA for selecting PA clock source

On keystone2 Lamarr and Edison platforms, the PA clocksource
mux in PLL REG1, can be changed only after enabling its clock
domain.
So selecting the output of PASS PLL as input to PA only after
enabling the clockdomain.
This is as per the debug done by "Vitaly Andrianov <vitalya@ti.com>"
and based on the previous work done by "Hao Zhang <hzhang@ti.com>"

Fixes: d634a0775bcf ("ARM: keystone2: Cleanup PLL init code")
Reported-by: Vitaly Andrianov <vitalya@ti.com>
Tested-by: Vitaly Andrianov <vitalya@ti.com>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
---
 board/ti/ks2_evm/board.c | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'board')

diff --git a/board/ti/ks2_evm/board.c b/board/ti/ks2_evm/board.c
index 859a260..bee42bc 100644
--- a/board/ti/ks2_evm/board.c
+++ b/board/ti/ks2_evm/board.c
@@ -14,6 +14,7 @@
 #include <fdt_support.h>
 #include <asm/arch/ddr3.h>
 #include <asm/arch/psc_defs.h>
+#include <asm/arch/clock.h>
 #include <asm/ti-common/ti-aemif.h>
 #include <asm/ti-common/keystone_net.h>
 
@@ -81,6 +82,9 @@ int board_eth_init(bd_t *bis)
 	if (psc_enable_module(KS2_LPSC_CRYPTO))
 		return -1;
 
+	if (cpu_is_k2e() || cpu_is_k2l())
+		pll_pa_clk_sel();
+
 	port_num = get_num_eth_ports();
 
 	for (j = 0; j < port_num; j++) {
-- 
cgit v1.1