From e8afa06581cb7ea808d6568d4106eb1b6f1ab334 Mon Sep 17 00:00:00 2001 From: aurel32 Date: Sat, 28 Mar 2009 23:14:32 +0000 Subject: [PATCH] target-sh4: r2d --append option support Add linux kernel command line ("--append" option) support. Fix kernel loading address to appropriate position when --append used. Using --kernel but --append case is left untouched for backward compatibility. This also change the host<->SH address mapping for r2d to host addr == phys_ram_base + SH addr. Signed-off-by: Takashi YOSHII Signed-off-by: Aurelien Jarno git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6916 c046a42c-6fe2-441c-8c8c-71466251a162 --- hw/r2d.c | 21 ++++++++++++++++----- 1 file changed, 16 insertions(+), 5 deletions(-) diff --git a/hw/r2d.c b/hw/r2d.c index 713fc53b7e..0f70d16ac4 100644 --- a/hw/r2d.c +++ b/hw/r2d.c @@ -37,6 +37,9 @@ #define SM501_VRAM_SIZE 0x800000 +/* CONFIG_BOOT_LINK_OFFSET of Linux kernel */ +#define LINUX_LOAD_OFFSET 0x800000 + #define PA_IRLMSK 0x00 #define PA_POWOFF 0x30 #define PA_VERREG 0x32 @@ -212,6 +215,7 @@ static void r2d_init(ram_addr_t ram_size, int vga_ram_size, } /* Allocate memory space */ + qemu_ram_alloc(SDRAM_BASE); /* to adjust the offset */ sdram_addr = qemu_ram_alloc(SDRAM_SIZE); cpu_register_physical_memory(SDRAM_BASE, SDRAM_SIZE, sdram_addr); /* Register peripherals */ @@ -233,20 +237,27 @@ static void r2d_init(ram_addr_t ram_size, int vga_ram_size, pci_nic_init(pci, &nd_table[i], (i==0)? 2<<3: -1, "rtl8139"); /* Todo: register on board registers */ - { + if (kernel_filename) { int kernel_size; /* initialization which should be done by firmware */ stl_phys(SH7750_BCR1, 1<<3); /* cs3 SDRAM */ stw_phys(SH7750_BCR2, 3<<(3*2)); /* cs3 32bit */ - kernel_size = load_image(kernel_filename, phys_ram_base); + if (kernel_cmdline) { + kernel_size = load_image_targphys(kernel_filename, + SDRAM_BASE + LINUX_LOAD_OFFSET, + SDRAM_SIZE - LINUX_LOAD_OFFSET); + env->pc = (SDRAM_BASE + LINUX_LOAD_OFFSET) | 0xa0000000; + pstrcpy_targphys(SDRAM_BASE + 0x10100, 256, kernel_cmdline); + } else { + kernel_size = load_image(kernel_filename, SDRAM_BASE); + env->pc = SDRAM_BASE | 0xa0000000; /* Start from P2 area */ + } if (kernel_size < 0) { fprintf(stderr, "qemu: could not load kernel '%s'\n", kernel_filename); exit(1); } - - env->pc = SDRAM_BASE | 0xa0000000; /* Start from P2 area */ } } @@ -254,5 +265,5 @@ QEMUMachine r2d_machine = { .name = "r2d", .desc = "r2d-plus board", .init = r2d_init, - .ram_require = (SDRAM_SIZE + SM501_VRAM_SIZE) | RAMSIZE_FIXED, + .ram_require = (SDRAM_BASE + SDRAM_SIZE + SM501_VRAM_SIZE) | RAMSIZE_FIXED, };