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- From 071e97587a291d3a5bbd614a425f46b7f90310aa Mon Sep 17 00:00:00 2001
- From: John Crispin <blogic@openwrt.org>
- Date: Sun, 16 Mar 2014 04:40:48 +0000
- Subject: [PATCH 08/57] MIPS: ralink: allow manual memory override
- RT5350 relies on the bootloader setting up the memc correctly.
- On sme boards the setup is incorrect leading to 32 MB being available but only 16 being recognized. Allow these boards to manually override the memory range
- .
- Signed-off-by: John Crispin <blogic@openwrt.org>
- ---
- arch/mips/ralink/of.c | 16 +++++++++++++++-
- 1 file changed, 15 insertions(+), 1 deletion(-)
- --- a/arch/mips/ralink/of.c
- +++ b/arch/mips/ralink/of.c
- @@ -53,6 +53,17 @@ void __init device_tree_init(void)
- unflatten_and_copy_device_tree();
- }
-
- +static int memory_dtb;
- +
- +static int __init early_init_dt_find_memory(unsigned long node, const char *uname,
- + int depth, void *data)
- +{
- + if (depth == 1 && !strcmp(uname, "memory@0"))
- + memory_dtb = 1;
- +
- + return 0;
- +}
- +
- void __init plat_mem_setup(void)
- {
- set_io_port_base(KSEG1);
- @@ -63,7 +74,10 @@ void __init plat_mem_setup(void)
- */
- __dt_setup_arch(__dtb_start);
-
- - if (soc_info.mem_size)
- + of_scan_flat_dt(early_init_dt_find_memory, NULL);
- + if (memory_dtb)
- + of_scan_flat_dt(early_init_dt_scan_memory, NULL);
- + else if (soc_info.mem_size)
- add_memory_region(soc_info.mem_base, soc_info.mem_size * SZ_1M,
- BOOT_MEM_RAM);
- else
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