From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from metis.ext.pengutronix.de ([2001:6f8:1178:4:290:27ff:fe1d:cc33]) by bombadil.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1XTQvI-00013h-Dg for barebox@lists.infradead.org; Mon, 15 Sep 2014 07:42:09 +0000 From: Sascha Hauer Date: Mon, 15 Sep 2014 09:41:10 +0200 Message-Id: <1410766873-4393-3-git-send-email-s.hauer@pengutronix.de> In-Reply-To: <1410766873-4393-1-git-send-email-s.hauer@pengutronix.de> References: <1410766873-4393-1-git-send-email-s.hauer@pengutronix.de> List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "barebox" Errors-To: barebox-bounces+u.kleine-koenig=pengutronix.de@lists.infradead.org Subject: [PATCH 2/5] ARM: mvebu: Simplify memory init order To: barebox@lists.infradead.org The initialisation of the memory nodes on mvebu is a bit compilcated: pure_initcall(mvebu_memory_fixup_register) of_register_fixup(mvebu_memory_of_fixup, NULL) core_initcall(kirkwood_init_soc) mvebu_set_memory() core_initcall(of_arm_init) of_fix_tree() mvebu_memory_of_fixup() First a mvebu common of_fixup function is registered, then the SoC calls mvebu_set_memory which stores the memory base and size in global variables. Afterwards the of_fixup is executed which fixes the memory nodes according to the global variables. Instead register a SoC specific fixup which directly calls mvebu_set_memory with the memory base and size as arguments: pure_initcall(kirkwood_register_soc_fixup); of_register_fixup(kirkwood_init_soc, NULL); core_initcall(of_arm_init) of_fix_tree() kirkwood_init_soc() mvebu_set_memory(phys_base, phys_size); Signed-off-by: Sascha Hauer --- arch/arm/mach-mvebu/armada-370-xp.c | 9 ++++++-- arch/arm/mach-mvebu/common.c | 34 ++++++++++--------------------- arch/arm/mach-mvebu/dove.c | 9 ++++++-- arch/arm/mach-mvebu/include/mach/common.h | 2 +- arch/arm/mach-mvebu/kirkwood.c | 9 ++++++-- 5 files changed, 33 insertions(+), 30 deletions(-) diff --git a/arch/arm/mach-mvebu/armada-370-xp.c b/arch/arm/mach-mvebu/armada-370-xp.c index 6251100..5c8499b 100644 --- a/arch/arm/mach-mvebu/armada-370-xp.c +++ b/arch/arm/mach-mvebu/armada-370-xp.c @@ -52,7 +52,7 @@ static void __noreturn armada_370_xp_reset_cpu(unsigned long addr) ; } -static int armada_370_xp_init_soc(void) +static int armada_370_xp_init_soc(struct device_node *root, void *context) { unsigned long phys_base, phys_size; u32 reg; @@ -74,4 +74,9 @@ static int armada_370_xp_init_soc(void) return 0; } -core_initcall(armada_370_xp_init_soc); + +static int armada_370_register_soc_fixup(void) +{ + return of_register_fixup(armada_370_xp_init_soc, NULL); +} +pure_initcall(armada_370_register_soc_fixup); diff --git a/arch/arm/mach-mvebu/common.c b/arch/arm/mach-mvebu/common.c index 5c3ac14..309f7a6 100644 --- a/arch/arm/mach-mvebu/common.c +++ b/arch/arm/mach-mvebu/common.c @@ -81,29 +81,21 @@ static int mvebu_soc_id_init(void) } postcore_initcall(mvebu_soc_id_init); -static u64 mvebu_mem[2]; - -void mvebu_set_memory(u64 phys_base, u64 phys_size) -{ - mvebu_mem[0] = phys_base; - mvebu_mem[1] = phys_size; -} - /* * Memory size is set up by BootROM and can be read from SoC's ram controller * registers. Fixup provided DTs to reflect accessible amount of directly * attached RAM. Removable RAM, e.g. SODIMM, should be added by a per-board * fixup. */ -static int mvebu_memory_of_fixup(struct device_node *root, void *context) +int mvebu_set_memory(u64 phys_base, u64 phys_size) { - struct device_node *np; + struct device_node *np, *root; __be32 reg[4]; int na, ns; - /* bail out on zero-sized mem */ - if (!mvebu_mem[1]) - return -ENODEV; + root = of_get_root_node(); + if (!root) + return -EINVAL; np = of_find_node_by_path("/memory"); if (!np) @@ -115,17 +107,17 @@ static int mvebu_memory_of_fixup(struct device_node *root, void *context) ns = of_n_size_cells(np); if (na == 2) { - reg[0] = cpu_to_be32(mvebu_mem[0] >> 32); - reg[1] = cpu_to_be32(mvebu_mem[0] & 0xffffffff); + reg[0] = cpu_to_be32(phys_base >> 32); + reg[1] = cpu_to_be32(phys_base & 0xffffffff); } else { - reg[0] = cpu_to_be32(mvebu_mem[0] & 0xffffffff); + reg[0] = cpu_to_be32(phys_base & 0xffffffff); } if (ns == 2) { - reg[2] = cpu_to_be32(mvebu_mem[1] >> 32); - reg[3] = cpu_to_be32(mvebu_mem[1] & 0xffffffff); + reg[2] = cpu_to_be32(phys_size >> 32); + reg[3] = cpu_to_be32(phys_size & 0xffffffff); } else { - reg[1] = cpu_to_be32(mvebu_mem[1] & 0xffffffff); + reg[1] = cpu_to_be32(phys_size & 0xffffffff); } if (of_set_property(np, "device_type", "memory", sizeof("memory"), 1) || @@ -135,10 +127,6 @@ static int mvebu_memory_of_fixup(struct device_node *root, void *context) return 0; } -static int mvebu_memory_fixup_register(void) { - return of_register_fixup(mvebu_memory_of_fixup, NULL); -} - static __noreturn void (*mvebu_reset_cpu)(unsigned long addr); void __noreturn reset_cpu(unsigned long addr) diff --git a/arch/arm/mach-mvebu/dove.c b/arch/arm/mach-mvebu/dove.c index 17cee0b..58d5439 100644 --- a/arch/arm/mach-mvebu/dove.c +++ b/arch/arm/mach-mvebu/dove.c @@ -77,7 +77,7 @@ static void __noreturn dove_reset_cpu(unsigned long addr) ; } -static int dove_init_soc(void) +static int dove_init_soc(struct device_node *root, void *context) { unsigned long phys_base, phys_size; @@ -95,4 +95,9 @@ static int dove_init_soc(void) return 0; } -core_initcall(dove_init_soc); + +static int dove_register_soc_fixup(void) +{ + return of_register_fixup(dove_init_soc, NULL); +} +pure_initcall(dove_register_soc_fixup); diff --git a/arch/arm/mach-mvebu/include/mach/common.h b/arch/arm/mach-mvebu/include/mach/common.h index 30862e0..5ce33fd 100644 --- a/arch/arm/mach-mvebu/include/mach/common.h +++ b/arch/arm/mach-mvebu/include/mach/common.h @@ -20,7 +20,7 @@ #define MVEBU_REMAP_INT_REG_BASE 0xf1000000 -void mvebu_set_memory(u64 phys_base, u64 phys_size); +int mvebu_set_memory(u64 phys_base, u64 phys_size); void mvebu_set_reset(void __noreturn (*reset)(unsigned long addr)); #endif diff --git a/arch/arm/mach-mvebu/kirkwood.c b/arch/arm/mach-mvebu/kirkwood.c index 7c0526b..a4b0853 100644 --- a/arch/arm/mach-mvebu/kirkwood.c +++ b/arch/arm/mach-mvebu/kirkwood.c @@ -51,7 +51,7 @@ static void __noreturn kirkwood_reset_cpu(unsigned long addr) ; } -static int kirkwood_init_soc(void) +static int kirkwood_init_soc(struct device_node *root, void *context) { unsigned long phys_base, phys_size; @@ -67,4 +67,9 @@ static int kirkwood_init_soc(void) return 0; } -core_initcall(kirkwood_init_soc); + +static int kirkwood_register_soc_fixup(void) +{ + return of_register_fixup(kirkwood_init_soc, NULL); +} +pure_initcall(kirkwood_register_soc_fixup); -- 2.1.0 _______________________________________________ barebox mailing list barebox@lists.infradead.org http://lists.infradead.org/mailman/listinfo/barebox