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Refactor QEMU firmware confguration device handling (based on patch by

Browse Source 
Aurelien Jarno)


git-svn-id: svn://coreboot.org/openbios/openbios-devel@432 f158a5a8-5612-0410-a976-696ce0be7e32
This commit is contained in:
Blue Swirl
2009-01-31 08:49:16 +00:00
parent d474d768b1
commit 36bab875b8
14 changed files with 104 additions and 119 deletions
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36
drivers/obio.c
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@@ -646,39 +646,6 @@ id_machine(uint16_t machine_id)
for (;;);
}
static volatile uint16_t *fw_cfg_cmd;
static volatile uint8_t *fw_cfg_data;
static void
fw_cfg_read(uint16_t cmd, char *buf, unsigned int nbytes)
{
unsigned int i;
*fw_cfg_cmd = cmd;
for (i = 0; i < nbytes; i++)
buf[i] = *fw_cfg_data;
}
static uint32_t
fw_cfg_read_i32(uint16_t cmd)
{
char buf[sizeof(uint32_t)];
fw_cfg_read(cmd, buf, sizeof(uint32_t));
return __le32_to_cpu(*(uint32_t *)buf);
}
static uint16_t
fw_cfg_read_i16(uint16_t cmd)
{
char buf[sizeof(uint16_t)];
fw_cfg_read(cmd, buf, sizeof(uint16_t));
return __le16_to_cpu(*(uint16_t *)buf);
}
static uint8_t qemu_uuid[16];
static void
@@ -710,8 +677,7 @@ ob_nvram_init(uint64_t base, uint64_t offset)
fword("finish-device");
fw_cfg_cmd = map_io(CFG_ADDR, CFG_SIZE);
fw_cfg_data = (uint8_t *)fw_cfg_cmd + 2;
fw_cfg_init();
fw_cfg_read(FW_CFG_SIGNATURE, buf, 4);
buf[4] = '\0';