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| author | Hauke Mehrtens <hauke@hauke-m.de> | 2009-11-29 16:53:50 +0000 |
|---|---|---|
| committer | Hauke Mehrtens <hauke@hauke-m.de> | 2009-11-29 16:53:50 +0000 |
| commit | 6fe93904b09c8c3a9fea5a72c21b1c1ddf6b16bf (patch) | |
| tree | 81bf7ca514262ceaf58db4e9499da95561120f81 | |
| parent | fa0396c5306839459c38d90213f99549f44b7b38 (diff) | |
| download | mtk-20170518-6fe93904b09c8c3a9fea5a72c21b1c1ddf6b16bf.zip mtk-20170518-6fe93904b09c8c3a9fea5a72c21b1c1ddf6b16bf.tar.gz mtk-20170518-6fe93904b09c8c3a9fea5a72c21b1c1ddf6b16bf.tar.bz2 | |
Read the size of the available memory from parameters passed to the kernel by firmware.
SVN-Revision: 18604
| -rw-r--r-- | target/linux/amazon/files/arch/mips/amazon/prom.c | 18 | ||||
| -rw-r--r-- | target/linux/amazon/patches-2.6.30/210-remove_unnedded_variables.patch | 12 |
2 files changed, 23 insertions, 7 deletions
diff --git a/target/linux/amazon/files/arch/mips/amazon/prom.c b/target/linux/amazon/files/arch/mips/amazon/prom.c index f138bcb..c5db4f5 100644 --- a/target/linux/amazon/files/arch/mips/amazon/prom.c +++ b/target/linux/amazon/files/arch/mips/amazon/prom.c @@ -59,12 +59,28 @@ void prom_printf(const char * fmt, ...) void __init prom_init(void) { + char **envp = (char **) fw_arg2; + + int memsize = 16; /* assume 16M as default */ + mips_machgroup = MACH_GROUP_INFINEON; mips_machtype = MACH_INFINEON_AMAZON; + envp = (char **)KSEG1ADDR((unsigned long)envp); + while (*envp) { + char *e = (char *)KSEG1ADDR(*envp); + + if (!strncmp(e, "memsize=", 8)) { + e += 8; + memsize = simple_strtoul(e, NULL, 10); + } + envp++; + } + memsize *= 1024 * 1024; + strcpy(&(arcs_cmdline[0]), "console=ttyS0,115200 rootfstype=squashfs,jffs2"); - add_memory_region(0x00000000, 0x1000000, BOOT_MEM_RAM); + add_memory_region(0x00000000, memsize, BOOT_MEM_RAM); } void prom_free_prom_memory(void) diff --git a/target/linux/amazon/patches-2.6.30/210-remove_unnedded_variables.patch b/target/linux/amazon/patches-2.6.30/210-remove_unnedded_variables.patch index c2c7fbd..3683a27 100644 --- a/target/linux/amazon/patches-2.6.30/210-remove_unnedded_variables.patch +++ b/target/linux/amazon/patches-2.6.30/210-remove_unnedded_variables.patch @@ -1,12 +1,12 @@ --- a/arch/mips/amazon/prom.c +++ b/arch/mips/amazon/prom.c -@@ -59,9 +59,6 @@ void prom_printf(const char * fmt, ...) +@@ -63,9 +63,6 @@ void __init prom_init(void) + + int memsize = 16; /* assume 16M as default */ - void __init prom_init(void) - { - mips_machgroup = MACH_GROUP_INFINEON; - mips_machtype = MACH_INFINEON_AMAZON; - - strcpy(&(arcs_cmdline[0]), "console=ttyS0,115200 rootfstype=squashfs,jffs2"); - - add_memory_region(0x00000000, 0x1000000, BOOT_MEM_RAM); + envp = (char **)KSEG1ADDR((unsigned long)envp); + while (*envp) { + char *e = (char *)KSEG1ADDR(*envp); |