From: Tom Rini <trini@konsulko.com>
Date: Sat, 27 Jan 2018 19:50:52 +0000 (-0500)
Subject: Merge branch 'rmobile-mx' of git://git.denx.de/u-boot-sh
X-Git-Tag: v2018.03-rc1~76
X-Git-Url: https://git.sur5r.net/?a=commitdiff_plain;h=9c486e7cb03787016d2d5a360c5a62296bf5ca7b;p=u-boot

Merge branch 'rmobile-mx' of git://git.denx.de/u-boot-sh
---

9c486e7cb03787016d2d5a360c5a62296bf5ca7b
diff --cc drivers/clk/renesas/renesas-cpg-mssr.c
index 0000000000,73da75b004..2d3c9e81df
mode 000000,100644..100644
--- a/drivers/clk/renesas/renesas-cpg-mssr.c
+++ b/drivers/clk/renesas/renesas-cpg-mssr.c
@@@ -1,0 -1,175 +1,175 @@@
+ /*
+  * Renesas RCar Gen3 CPG MSSR driver
+  *
+  * Copyright (C) 2018 Marek Vasut <marek.vasut@gmail.com>
+  *
+  * Based on the following driver from Linux kernel:
+  * r8a7796 Clock Pulse Generator / Module Standby and Software Reset
+  *
+  * Copyright (C) 2016 Glider bvba
+  *
+  * SPDX-License-Identifier:	GPL-2.0+
+  */
+ #include <common.h>
+ #include <clk-uclass.h>
+ #include <dm.h>
+ #include <errno.h>
+ #include <wait_bit.h>
+ #include <asm/io.h>
+ 
+ #include <dt-bindings/clock/renesas-cpg-mssr.h>
+ 
+ #include "renesas-cpg-mssr.h"
+ 
+ /*
+  * Module Standby and Software Reset register offets.
+  *
+  * If the registers exist, these are valid for SH-Mobile, R-Mobile,
+  * R-Car Gen2, R-Car Gen3, and RZ/G1.
+  * These are NOT valid for R-Car Gen1 and RZ/A1!
+  */
+ 
+ /*
+  * Module Stop Status Register offsets
+  */
+ 
+ static const u16 mstpsr[] = {
+ 	0x030, 0x038, 0x040, 0x048, 0x04C, 0x03C, 0x1C0, 0x1C4,
+ 	0x9A0, 0x9A4, 0x9A8, 0x9AC,
+ };
+ 
+ #define	MSTPSR(i)	mstpsr[i]
+ 
+ 
+ /*
+  * System Module Stop Control Register offsets
+  */
+ 
+ static const u16 smstpcr[] = {
+ 	0x130, 0x134, 0x138, 0x13C, 0x140, 0x144, 0x148, 0x14C,
+ 	0x990, 0x994, 0x998, 0x99C,
+ };
+ 
+ #define	SMSTPCR(i)	smstpcr[i]
+ 
+ 
+ /* Realtime Module Stop Control Register offsets */
+ #define RMSTPCR(i)	(smstpcr[i] - 0x20)
+ 
+ /* Modem Module Stop Control Register offsets (r8a73a4) */
+ #define MMSTPCR(i)	(smstpcr[i] + 0x20)
+ 
+ /* Software Reset Clearing Register offsets */
+ #define	SRSTCLR(i)	(0x940 + (i) * 4)
+ 
+ bool renesas_clk_is_mod(struct clk *clk)
+ {
+ 	return (clk->id >> 16) == CPG_MOD;
+ }
+ 
+ int renesas_clk_get_mod(struct clk *clk, struct cpg_mssr_info *info,
+ 			const struct mssr_mod_clk **mssr)
+ {
+ 	const unsigned long clkid = clk->id & 0xffff;
+ 	int i;
+ 
+ 	for (i = 0; i < info->mod_clk_size; i++) {
+ 		if (info->mod_clk[i].id !=
+ 		    (info->mod_clk_base + MOD_CLK_PACK(clkid)))
+ 			continue;
+ 
+ 		*mssr = &info->mod_clk[i];
+ 		return 0;
+ 	}
+ 
+ 	return -ENODEV;
+ }
+ 
+ int renesas_clk_get_core(struct clk *clk, struct cpg_mssr_info *info,
+ 			 const struct cpg_core_clk **core)
+ {
+ 	const unsigned long clkid = clk->id & 0xffff;
+ 	int i;
+ 
+ 	for (i = 0; i < info->core_clk_size; i++) {
+ 		if (info->core_clk[i].id != clkid)
+ 			continue;
+ 
+ 		*core = &info->core_clk[i];
+ 		return 0;
+ 	}
+ 
+ 	return -ENODEV;
+ }
+ 
+ int renesas_clk_get_parent(struct clk *clk, struct cpg_mssr_info *info,
+ 			   struct clk *parent)
+ {
+ 	const struct cpg_core_clk *core;
+ 	const struct mssr_mod_clk *mssr;
+ 	int ret;
+ 
+ 	if (renesas_clk_is_mod(clk)) {
+ 		ret = renesas_clk_get_mod(clk, info, &mssr);
+ 		if (ret)
+ 			return ret;
+ 
+ 		parent->id = mssr->parent;
+ 	} else {
+ 		ret = renesas_clk_get_core(clk, info, &core);
+ 		if (ret)
+ 			return ret;
+ 
+ 		if (core->type == CLK_TYPE_IN)
+ 			parent->id = ~0;	/* Top-level clock */
+ 		else
+ 			parent->id = core->parent;
+ 	}
+ 
+ 	parent->dev = clk->dev;
+ 
+ 	return 0;
+ }
+ 
+ int renesas_clk_endisable(struct clk *clk, void __iomem *base, bool enable)
+ {
+ 	const unsigned long clkid = clk->id & 0xffff;
+ 	const unsigned int reg = clkid / 100;
+ 	const unsigned int bit = clkid % 100;
+ 	const u32 bitmask = BIT(bit);
+ 
+ 	if (!renesas_clk_is_mod(clk))
+ 		return -EINVAL;
+ 
+ 	debug("%s[%i] MSTP %lu=%02u/%02u %s\n", __func__, __LINE__,
+ 	      clkid, reg, bit, enable ? "ON" : "OFF");
+ 
+ 	if (enable) {
+ 		clrbits_le32(base + SMSTPCR(reg), bitmask);
 -		return wait_for_bit("MSTP", base + MSTPSR(reg),
++		return wait_for_bit_le32(base + MSTPSR(reg),
+ 				    bitmask, 0, 100, 0);
+ 	} else {
+ 		setbits_le32(base + SMSTPCR(reg), bitmask);
+ 		return 0;
+ 	}
+ }
+ 
+ int renesas_clk_remove(void __iomem *base, struct cpg_mssr_info *info)
+ {
+ 	unsigned int i;
+ 
+ 	/* Stop TMU0 */
+ 	clrbits_le32(TMU_BASE + TSTR0, TSTR0_STR0);
+ 
+ 	/* Stop module clock */
+ 	for (i = 0; i < info->mstp_table_size; i++) {
+ 		clrsetbits_le32(base + SMSTPCR(i),
+ 				info->mstp_table[i].sdis,
+ 				info->mstp_table[i].sen);
+ 		clrsetbits_le32(base + RMSTPCR(i),
+ 				info->mstp_table[i].rdis,
+ 				info->mstp_table[i].ren);
+ 	}
+ 
+ 	return 0;
+ }