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Use firmware configuration instead of NVRAM (initial patch by Aurelien Jarno)

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Use firmware configuration device for boot device, kernel, initrd and
kernel command line parameters on PPC, Sparc32 and Sparc64.


git-svn-id: svn://coreboot.org/openbios/trunk/openbios-devel@479 f158a5a8-5612-0410-a976-696ce0be7e32
This commit is contained in:
Blue Swirl
2009-03-08 09:45:25 +00:00
parent b73bf5229a
commit b098842b5b
4 changed files with 45 additions and 265 deletions
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32
arch/sparc64/openbios.c
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@@ -15,9 +15,6 @@
#include "openbios.h"
#include "openbios/pci.h"
#include "asm/pci.h"
#include "libc/byteorder.h"
#define cpu_to_be16(x) __cpu_to_be16(x)
#include "openbios/firmware_abi.h"
#include "boot.h"
#include "../../drivers/timer.h" // XXX
#define NO_QEMU_PROTOS
@@ -42,11 +39,9 @@ static ucell *memory;
#define NVRAM_SIZE 0x2000
#define NVRAM_IDPROM 0x1fd8
#define NVRAM_IDPROM_SIZE 32
#define NVRAM_OB_START (sizeof(ohwcfg_v3_t) + sizeof(struct sparc_arch_cfg))
#define NVRAM_OB_START (0)
#define NVRAM_OB_SIZE ((0x1fd0 - NVRAM_OB_START) & ~15)
static ohwcfg_v3_t nv_info;
#define OBIO_CMDLINE_MAX 256
static char obio_cmdline[OBIO_CMDLINE_MAX];
@@ -275,7 +270,7 @@ static uint8_t qemu_uuid[16];
void arch_nvram_get(char *data)
{
uint32_t size;
uint32_t size = 0;
const struct cpudef *cpu;
const char *bootpath;
char buf[256];
@@ -284,8 +279,7 @@ void arch_nvram_get(char *data)
uint32_t clock_frequency;
uint16_t machine_id;
const char *stdin_path, *stdout_path;
nvram_read(0, (char *)&nv_info, sizeof(ohwcfg_v3_t));
const char *kernel_cmdline;
fw_cfg_init();
@@ -304,16 +298,20 @@ void arch_nvram_get(char *data)
for(;;);
}
kernel_image = nv_info.kernel_image;
kernel_size = nv_info.kernel_size;
size = nv_info.cmdline_size;
if (size > OBIO_CMDLINE_MAX - 1)
size = OBIO_CMDLINE_MAX - 1;
memcpy(&obio_cmdline, (void *)(long)nv_info.cmdline, size);
kernel_size = fw_cfg_read_i32(FW_CFG_KERNEL_SIZE);
if (kernel_size)
kernel_image = fw_cfg_read_i64(FW_CFG_KERNEL_ADDR);
kernel_cmdline = (const char *) fw_cfg_read_i64(FW_CFG_KERNEL_CMDLINE);
if (kernel_cmdline) {
size = strlen(kernel_cmdline);
if (size > OBIO_CMDLINE_MAX - 1)
size = OBIO_CMDLINE_MAX - 1;
memcpy(&obio_cmdline, kernel_cmdline, size);
}
obio_cmdline[size] = '\0';
qemu_cmdline = (uint64_t)obio_cmdline;
cmdline_size = size;
boot_device = nv_info.boot_devices[0];
boot_device = fw_cfg_read_i16(FW_CFG_BOOT_DEVICE);
if (kernel_size)
printk("kernel addr %llx size %llx\n", kernel_image, kernel_size);
@@ -372,7 +370,7 @@ void arch_nvram_get(char *data)
push_str("/chosen");
fword("find-device");
if (nv_info.boot_devices[0] == 'c')
if (boot_device == 'c')
bootpath = "disk:a";
else
bootpath = "cdrom:a";