Merge tag 'tegra-for-5.6-arm-core' of...

Merge tag 'tegra-for-5.6-arm-core' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux into arm/soc

ARM: tegra: Core changes for v5.6-rc1

Contains a couple of fixes for RAM repair on Tegra124.

* tag 'tegra-for-5.6-arm-core' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux:
  ARM: tegra: Use clk_m CPU on Tegra124 LP1 resume
  ARM: tegra: Modify reshift divider during LP1
  ARM: tegra: Enable PLLP bypass during Tegra124 LP1

Link: https://lore.kernel.org/r/20200111003553.2411874-5-thierry.reding@gmail.comSigned-off-by: Olof Johansson <olof@lixom.net>

arch/arm/mach-tegra/sleep-tegra30.S

@@ -59,6 +59,9 @@
 #define CLK_RESET_PLLX_MISC3_IDDQ	3
 #define CLK_RESET_PLLM_MISC_IDDQ	5
 #define CLK_RESET_PLLC_MISC_IDDQ	26
+#define CLK_RESET_PLLP_RESHIFT		0x528
+#define CLK_RESET_PLLP_RESHIFT_DEFAULT	0x3b
+#define CLK_RESET_PLLP_RESHIFT_ENABLE	0x3
 
 #define CLK_RESET_CLK_SOURCE_MSELECT	0x3b4
 
@@ -370,6 +373,18 @@ _pll_m_c_x_done:
 	pll_locked r1, r0, CLK_RESET_PLLC_BASE
 	pll_locked r1, r0, CLK_RESET_PLLX_BASE
 
+	tegra_get_soc_id TEGRA_APB_MISC_BASE, r1
+	cmp	r1, #TEGRA30
+	beq	1f
+
+	ldr	r1, [r0, #CLK_RESET_PLLP_BASE]
+	bic	r1, r1, #(1<<31)	@ disable PllP bypass
+	str	r1, [r0, #CLK_RESET_PLLP_BASE]
+
+	mov	r1, #CLK_RESET_PLLP_RESHIFT_DEFAULT
+	str	r1, [r0, #CLK_RESET_PLLP_RESHIFT]
+1:
+
 	mov32	r7, TEGRA_TMRUS_BASE
 	ldr	r1, [r7]
 	add	r1, r1, #LOCK_DELAY
@@ -630,9 +645,16 @@ tegra30_switch_cpu_to_clk32k:
 	str	r0, [r4, #PMC_PLLP_WB0_OVERRIDE]
 
 	/* disable PLLP, PLLA, PLLC and PLLX */
+	tegra_get_soc_id TEGRA_APB_MISC_BASE, r1
+	cmp	r1, #TEGRA30
 	ldr	r0, [r5, #CLK_RESET_PLLP_BASE]
+	orrne	r0, r0, #(1 << 31)	@ enable PllP bypass on fast cluster
 	bic	r0, r0, #(1 << 30)
 	str	r0, [r5, #CLK_RESET_PLLP_BASE]
+	beq	1f
+	mov	r0, #CLK_RESET_PLLP_RESHIFT_ENABLE
+	str	r0, [r5, #CLK_RESET_PLLP_RESHIFT]
+1:
 	ldr	r0, [r5, #CLK_RESET_PLLA_BASE]
 	bic	r0, r0, #(1 << 30)
 	str	r0, [r5, #CLK_RESET_PLLA_BASE]
@@ -648,8 +670,12 @@ tegra30_switch_cpu_to_clk32k:
 	pll_iddq_entry r1, r5, CLK_RESET_PLLX_MISC3, CLK_RESET_PLLX_MISC3_IDDQ
 _no_pll_in_iddq:
 
-	/* switch to CLKS */
-	mov	r0, #0	/* brust policy = 32KHz */
+	/*
+	 * Switch to clk_s (32KHz); bits 28:31=0
+	 * Enable burst on CPU IRQ; bit 24=1
+	 * Set IRQ burst clock source to clk_m; bits 10:8=0
+	 */
+	mov	r0, #(1 << 24)
 	str	r0, [r5, #CLK_RESET_SCLK_BURST]
 
 	ret	lr