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From: Paul Cercueil <paul@crapouillou.net>
To: Ralf Baechle <ralf@linux-mips.org>,
	Michael Turquette <mturquette@baylibre.com>,
	Stephen Boyd <sboyd@codeaurora.org>,
	Rob Herring <robh+dt@kernel.org>
Cc: Paul Burton <paul.burton@imgtec.com>,
	Maarten ter Huurne <maarten@treewalker.org>,
	devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
	linux-mips@linux-mips.org, linux-clk@vger.kernel.org
Subject: [PATCH v2 14/17] MIPS: JZ4770: Work around config2 misreporting associativity
Date: Tue, 20 Jun 2017 17:18:52 +0200	[thread overview]
Message-ID: <20170620151855.19399-14-paul@crapouillou.net> (raw)
In-Reply-To: <20170620151855.19399-1-paul@crapouillou.net>

From: Maarten ter Huurne <maarten@treewalker.org>

According to config2, the associativity would be 5-ways, but the
documentation states 4-ways, which also matches the documented
L2 cache size of 256 kB.

Signed-off-by: Maarten ter Huurne <maarten@treewalker.org>
---
 arch/mips/mm/sc-mips.c | 9 +++++++++
 1 file changed, 9 insertions(+)

 v2: No change

diff --git a/arch/mips/mm/sc-mips.c b/arch/mips/mm/sc-mips.c
index c909c3342729..67a3b4d88580 100644
--- a/arch/mips/mm/sc-mips.c
+++ b/arch/mips/mm/sc-mips.c
@@ -15,6 +15,7 @@
 #include <asm/mmu_context.h>
 #include <asm/r4kcache.h>
 #include <asm/mips-cm.h>
+#include <asm/bootinfo.h>
 
 /*
  * MIPS32/MIPS64 L2 cache handling
@@ -228,6 +229,14 @@ static inline int __init mips_sc_probe(void)
 	else
 		return 0;
 
+	/*
+	 * According to config2 it would be 5-ways, but that is contradicted
+	 * by all documentation.
+	 */
+	if (current_cpu_type() == CPU_JZRISC &&
+				mips_machtype == MACH_INGENIC_JZ4770)
+		c->scache.ways = 4;
+
 	c->scache.waysize = c->scache.sets * c->scache.linesz;
 	c->scache.waybit = __ffs(c->scache.waysize);
 
-- 
2.11.0

  parent reply	other threads:[~2017-06-20 15:20 UTC|newest]

Thread overview: 109+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-06-07 20:04 [PATCH 00/15] Ingenic JZ4770 and GCW Zero patchset Paul Cercueil
2017-06-07 20:04 ` Paul Cercueil
2017-06-07 20:04 ` [PATCH 01/15] clk: ingenic: Fix recalc_rate for clocks with fixed divider Paul Cercueil
2017-06-20 15:18   ` [PATCH v2 01/17] clk: ingenic: Use const pointer to clk_ops in struct Paul Cercueil
2017-06-20 15:18     ` [PATCH v2 02/17] clk: ingenic: Fix recalc_rate for clocks with fixed divider Paul Cercueil
2017-06-20 15:18     ` [PATCH v2 03/17] clk: ingenic: support PLLs with no bypass bit Paul Cercueil
2017-06-20 15:18     ` [PATCH v2 04/17] clk: ingenic: Add code to enable/disable PLLs Paul Cercueil
2017-06-20 15:18     ` [PATCH v2 05/17] clk: Add Ingenic jz4770 CGU driver Paul Cercueil
2017-06-20 15:18     ` [PATCH v2 06/17] serial: core: Make uart_parse_options take const char* argument Paul Cercueil
2017-06-20 15:18     ` [PATCH v2 07/17] serial: 8250_ingenic: Add support for the JZ4770 SoC Paul Cercueil
2017-06-20 15:18     ` [PATCH v2 08/17] serial: 8250_ingenic: Parse earlycon options Paul Cercueil
2017-06-20 15:18     ` [PATCH v2 09/17] MIPS: Setup boot_command_line before plat_mem_setup Paul Cercueil
2017-06-20 15:18     ` [PATCH v2 10/17] MIPS: ingenic: Use common cmdline handling code Paul Cercueil
2017-06-20 15:18       ` Paul Cercueil
2017-06-20 15:18     ` [PATCH v2 11/17] MIPS: platform: add machtype IDs for more Ingenic SoCs Paul Cercueil
2017-06-20 15:18     ` [PATCH v2 12/17] MIPS: ingenic: Add machine info for supported boards Paul Cercueil
2017-06-20 15:18     ` [PATCH v2 13/17] MIPS: ingenic: Initial JZ4770 support Paul Cercueil
2017-06-20 15:18     ` Paul Cercueil [this message]
2017-06-20 15:18     ` [PATCH v2 15/17] MIPS: JZ4770: Workaround for corrupted DMA transfers Paul Cercueil
2017-06-22  7:21       ` Marcin Nowakowski
2017-06-22  7:21         ` Marcin Nowakowski
2017-06-22  7:21         ` Marcin Nowakowski
2017-06-26 13:32         ` Paul Cercueil
2017-06-20 15:18     ` [PATCH v2 16/17] devicetree/bindings: Add GCW vendor prefix Paul Cercueil
2017-06-20 15:18     ` [PATCH v2 17/17] MIPS: ingenic: Initial GCW Zero support Paul Cercueil
2017-06-21 21:50     ` [PATCH v2 01/17] clk: ingenic: Use const pointer to clk_ops in struct Stephen Boyd
2017-06-26 13:34       ` Paul Cercueil
2017-07-02 16:29   ` [PATCH v3 00/18] JZ4770 support Paul Cercueil
2017-07-02 16:29     ` [PATCH v3 01/18] clk: ingenic: Use const pointer to clk_ops in struct Paul Cercueil
2017-07-12 23:20       ` Stephen Boyd
2017-07-13 10:07         ` [PATCH v3 01/18] clk: ingenic: Use const pointer to clk_ops in struct, Paul Cercueil
2017-07-13 10:07           ` Paul Cercueil
2017-07-13 11:49           ` [PATCH v3 01/18] clk: ingenic: Use const pointer to clk_ops in struct Ralf Baechle
2017-07-13 11:49             ` Ralf Baechle
2017-07-13 17:50             ` Stephen Boyd
2017-07-13 17:50               ` Stephen Boyd
2017-12-28 13:56       ` [PATCH v4 00/15] Ingenic JZ4770 and GCW Zero support Paul Cercueil
2017-12-28 13:56         ` [PATCH v4 01/15] clk: ingenic: Use const pointer to clk_ops in struct Paul Cercueil
2017-12-28 13:56           ` Paul Cercueil
2017-12-28 13:56         ` [PATCH v4 02/15] clk: ingenic: Fix recalc_rate for clocks with fixed divider Paul Cercueil
2017-12-28 18:36           ` Stephen Boyd
2017-12-28 13:56         ` [PATCH v4 03/15] clk: ingenic: support PLLs with no bypass bit Paul Cercueil
2017-12-28 18:36           ` Stephen Boyd
2017-12-28 13:56         ` [PATCH v4 04/15] clk: ingenic: Add code to enable/disable PLLs Paul Cercueil
2017-12-28 18:39           ` Stephen Boyd
2017-12-28 13:56         ` [PATCH v4 05/15] dt-bindings: clock: Add jz4770-cgu.h header Paul Cercueil
2017-12-28 18:36           ` Stephen Boyd
2017-12-28 13:56         ` [PATCH v4 06/15] clk: Add Ingenic jz4770 CGU driver Paul Cercueil
2017-12-28 18:38           ` Stephen Boyd
2017-12-29 12:55           ` Philippe Ombredanne
2017-12-29 12:55             ` Philippe Ombredanne
2017-12-29 12:55             ` Philippe Ombredanne
2017-12-29 15:02             ` Paul Cercueil
2017-12-29 15:02               ` Paul Cercueil
2017-12-29 15:02               ` Paul Cercueil
2017-12-28 13:56         ` [PATCH v4 07/15] MIPS: Setup boot_command_line before plat_mem_setup Paul Cercueil
2017-12-28 13:56         ` [PATCH v4 08/15] MIPS: ingenic: Use common cmdline handling code Paul Cercueil
2017-12-28 13:56           ` Paul Cercueil
2017-12-28 13:56         ` [PATCH v4 09/15] MIPS: platform: add machtype IDs for more Ingenic SoCs Paul Cercueil
2017-12-28 13:56         ` [PATCH v4 10/15] MIPS: ingenic: Add machine info for supported boards Paul Cercueil
2017-12-28 13:56         ` [PATCH v4 11/15] MIPS: ingenic: Initial JZ4770 support Paul Cercueil
2017-12-28 13:56         ` [PATCH v4 12/15] MIPS: JZ4770: Work around config2 misreporting associativity Paul Cercueil
2017-12-28 13:56         ` [PATCH v4 13/15] MIPS: JZ4770: Workaround for corrupted DMA transfers Paul Cercueil
2017-12-28 13:56         ` [PATCH v4 14/15] devicetree/bindings: Add GCW vendor prefix Paul Cercueil
2017-12-28 13:56         ` [PATCH v4 15/15] MIPS: ingenic: Initial GCW Zero support Paul Cercueil
2017-12-28 13:56           ` Paul Cercueil
2017-07-02 16:30     ` [PATCH v3 02/18] clk: ingenic: Fix recalc_rate for clocks with fixed divider Paul Cercueil
2017-07-02 16:30     ` [PATCH v3 03/18] clk: ingenic: support PLLs with no bypass bit Paul Cercueil
2017-07-02 16:30     ` [PATCH v3 04/18] clk: ingenic: Add code to enable/disable PLLs Paul Cercueil
2017-07-02 16:30     ` [PATCH v3 05/18] dt-bindings: clock: Add jz4770-cgu.h header Paul Cercueil
2017-07-02 16:30     ` [PATCH v3 06/18] clk: Add Ingenic jz4770 CGU driver Paul Cercueil
2017-07-02 16:30     ` [PATCH v3 07/18] serial: core: Make uart_parse_options take const char* argument Paul Cercueil
2017-07-02 16:30     ` [PATCH v3 08/18] serial: 8250_ingenic: Add support for the JZ4770 SoC Paul Cercueil
2017-07-02 16:30     ` [PATCH v3 09/18] serial: 8250_ingenic: Parse earlycon options Paul Cercueil
2017-07-02 16:30     ` [PATCH v3 10/18] MIPS: Setup boot_command_line before plat_mem_setup Paul Cercueil
2017-07-02 16:30     ` [PATCH v3 11/18] MIPS: ingenic: Use common cmdline handling code Paul Cercueil
2017-07-02 16:30     ` [PATCH v3 12/18] MIPS: platform: add machtype IDs for more Ingenic SoCs Paul Cercueil
2017-07-02 16:30     ` [PATCH v3 13/18] MIPS: ingenic: Add machine info for supported boards Paul Cercueil
2017-07-02 16:30     ` [PATCH v3 14/18] MIPS: ingenic: Initial JZ4770 support Paul Cercueil
2017-07-02 16:30     ` [PATCH v3 15/18] MIPS: JZ4770: Work around config2 misreporting associativity Paul Cercueil
2017-07-02 16:30     ` [PATCH v3 16/18] MIPS: JZ4770: Workaround for corrupted DMA transfers Paul Cercueil
2017-07-02 16:30     ` [PATCH v3 17/18] devicetree/bindings: Add GCW vendor prefix Paul Cercueil
2017-07-02 16:30     ` [PATCH v3 18/18] MIPS: ingenic: Initial GCW Zero support Paul Cercueil
2017-06-07 20:04 ` [PATCH 02/15] clk: ingenic: support PLLs with no bypass bit Paul Cercueil
2017-06-07 20:04 ` [PATCH 03/15] clk: ingenic: Add code to enable/disable PLLs Paul Cercueil
2017-06-07 20:04 ` [PATCH 04/15] clk: Add Ingenic jz4770 CGU driver Paul Cercueil
2017-06-07 20:59   ` Stephen Boyd
2017-06-07 20:59     ` Stephen Boyd
2017-06-08  8:40     ` Maarten ter Huurne
2017-06-08 21:10     ` Paul Cercueil
2017-06-26 13:50     ` Paul Cercueil
2017-06-26 22:49       ` Stephen Boyd
2017-06-07 20:04 ` [PATCH 05/15] serial: 8250_ingenic: Add support for the JZ4770 SoC Paul Cercueil
2017-06-09 14:22   ` Rob Herring
2017-06-09 14:22     ` Rob Herring
2017-06-07 20:04 ` [PATCH 06/15] serial: 8250_ingenic: Parse earlycon options Paul Cercueil
2017-06-08  7:31   ` Marcin Nowakowski
2017-06-08  7:31     ` Marcin Nowakowski
2017-06-08 21:12     ` Paul Cercueil
2017-06-07 20:04 ` [PATCH 07/15] MIPS: Setup boot_command_line before plat_mem_setup Paul Cercueil
2017-06-07 20:04 ` [PATCH 08/15] MIPS: ingenic: Use common cmdline handling code Paul Cercueil
2017-06-07 20:04 ` [PATCH 09/15] MIPS: platform: add machtype IDs for more Ingenic SoCs Paul Cercueil
2017-06-07 20:04 ` [PATCH 10/15] MIPS: ingenic: Add machine info for supported boards Paul Cercueil
2017-06-07 20:04 ` [PATCH 11/15] MIPS: ingenic: Initial JZ4770 support Paul Cercueil
2017-06-07 20:04 ` [PATCH 12/15] MIPS: JZ4770: Work around config2 misreporting associativity Paul Cercueil
2017-06-07 20:04 ` [PATCH 13/15] MIPS: JZ4770: Workaround for corrupted DMA transfers Paul Cercueil
2017-06-07 20:04 ` [PATCH 14/15] devicetree/bindings: Add GCW vendor prefix Paul Cercueil
2017-06-09 14:24   ` Rob Herring
2017-06-07 20:04 ` [PATCH 15/15] MIPS: ingenic: Initial GCW Zero support Paul Cercueil

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