diff options
Diffstat (limited to 'target/linux/mvebu/patches-3.10/0053-ARM-mvebu-Remove-the-harcoded-BootROM-window-allocat.patch')
| -rw-r--r-- | target/linux/mvebu/patches-3.10/0053-ARM-mvebu-Remove-the-harcoded-BootROM-window-allocat.patch | 67 |
1 files changed, 67 insertions, 0 deletions
diff --git a/target/linux/mvebu/patches-3.10/0053-ARM-mvebu-Remove-the-harcoded-BootROM-window-allocat.patch b/target/linux/mvebu/patches-3.10/0053-ARM-mvebu-Remove-the-harcoded-BootROM-window-allocat.patch new file mode 100644 index 0000000000..393bfc32c6 --- /dev/null +++ b/target/linux/mvebu/patches-3.10/0053-ARM-mvebu-Remove-the-harcoded-BootROM-window-allocat.patch @@ -0,0 +1,67 @@ +From 23a9b291a7b9ba28b31da56e6ced7a8168baa3de Mon Sep 17 00:00:00 2001 +From: Ezequiel Garcia <ezequiel.garcia@free-electrons.com> +Date: Tue, 21 May 2013 11:01:33 -0300 +Subject: [PATCH 053/203] ARM: mvebu: Remove the harcoded BootROM window + allocation + +The address decoding window to access the BootROM should not be +allocated programatically, but instead declared in the device tree. + +Signed-off-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com> +Tested-by: Andrew Lunn <andrew@lunn.ch> +Tested-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com> +--- + arch/arm/mach-mvebu/platsmp.c | 25 ++++++++++++++++++++++++- + 1 file changed, 24 insertions(+), 1 deletion(-) + +--- a/arch/arm/mach-mvebu/platsmp.c ++++ b/arch/arm/mach-mvebu/platsmp.c +@@ -21,6 +21,7 @@ + #include <linux/smp.h> + #include <linux/clk.h> + #include <linux/of.h> ++#include <linux/of_address.h> + #include <linux/mbus.h> + #include <asm/cacheflush.h> + #include <asm/smp_plat.h> +@@ -29,6 +30,9 @@ + #include "pmsu.h" + #include "coherency.h" + ++#define AXP_BOOTROM_BASE 0xfff00000 ++#define AXP_BOOTROM_SIZE 0x100000 ++ + void __init set_secondary_cpus_clock(void) + { + int thiscpu; +@@ -115,10 +119,29 @@ static void __init armada_xp_smp_init_cp + + void __init armada_xp_smp_prepare_cpus(unsigned int max_cpus) + { ++ struct device_node *node; ++ struct resource res; ++ int err; ++ + set_secondary_cpus_clock(); + flush_cache_all(); + set_cpu_coherent(cpu_logical_map(smp_processor_id()), 0); +- mvebu_mbus_add_window("bootrom", 0xfff00000, SZ_1M); ++ ++ /* ++ * In order to boot the secondary CPUs we need to ensure ++ * the bootROM is mapped at the correct address. ++ */ ++ node = of_find_compatible_node(NULL, NULL, "marvell,bootrom"); ++ if (!node) ++ panic("Cannot find 'marvell,bootrom' compatible node"); ++ ++ err = of_address_to_resource(node, 0, &res); ++ if (err < 0) ++ panic("Cannot get 'bootrom' node address"); ++ ++ if (res.start != AXP_BOOTROM_BASE || ++ resource_size(&res) != AXP_BOOTROM_SIZE) ++ panic("The address for the BootROM is incorrect"); + } + + struct smp_operations armada_xp_smp_ops __initdata = { |