diff options
Diffstat (limited to 'drivers/media/video/cx18/cx18-firmware.c')
| -rw-r--r-- | drivers/media/video/cx18/cx18-firmware.c | 21 |
1 files changed, 14 insertions, 7 deletions
diff --git a/drivers/media/video/cx18/cx18-firmware.c b/drivers/media/video/cx18/cx18-firmware.c index 7a7c89032caa..ab02da727519 100644 --- a/drivers/media/video/cx18/cx18-firmware.c +++ b/drivers/media/video/cx18/cx18-firmware.c @@ -134,7 +134,8 @@ static int load_cpu_fw_direct(const char *fn, u8 __iomem *mem, struct cx18 *cx) return size; } -static int load_apu_fw_direct(const char *fn, u8 __iomem *dst, struct cx18 *cx) +static int load_apu_fw_direct(const char *fn, u8 __iomem *dst, struct cx18 *cx, + u32 *entry_addr) { const struct firmware *fw = NULL; int i, j; @@ -152,6 +153,7 @@ static int load_apu_fw_direct(const char *fn, u8 __iomem *dst, struct cx18 *cx) return -ENOMEM; } + *entry_addr = 0xffffffff; src = (const u32 *)fw->data; vers = fw->data + sizeof(seghdr); sz = fw->size; @@ -168,10 +170,12 @@ static int load_apu_fw_direct(const char *fn, u8 __iomem *dst, struct cx18 *cx) } CX18_DEBUG_INFO("load segment %x-%x\n", seghdr.addr, seghdr.addr + seghdr.size - 1); + if (*entry_addr == 0xffffffff) + *entry_addr = seghdr.addr; if (offset + seghdr.size > sz) break; for (i = 0; i < seghdr.size; i += 4096) { - cx18_setup_page(cx, offset + i); + cx18_setup_page(cx, seghdr.addr + i); for (j = i; j < seghdr.size && j < i + 4096; j += 4) { /* no need for endianness conversion on the ppc */ cx18_raw_writel(cx, src[(offset + j) / 4], @@ -192,8 +196,6 @@ static int load_apu_fw_direct(const char *fn, u8 __iomem *dst, struct cx18 *cx) fn, apu_version, fw->size); size = fw->size; release_firmware(fw); - /* Clear bit0 for APU to start from 0 */ - cx18_write_reg(cx, cx18_read_reg(cx, 0xc72030) & ~1, 0xc72030); return size; } @@ -338,11 +340,16 @@ int cx18_firmware_init(struct cx18 *cx) /* Only if the processor is not running */ if (cx18_read_reg(cx, CX18_PROC_SOFT_RESET) & 8) { + u32 fw_entry_addr; int sz = load_apu_fw_direct("v4l-cx23418-apu.fw", - cx->enc_mem, cx); + cx->enc_mem, cx, &fw_entry_addr); + + /* Clear bit0 for APU to start from 0 */ + cx18_write_reg(cx, cx18_read_reg(cx, 0xc72030) & ~1, 0xc72030); + + cx18_write_enc(cx, 0xE51FF004, 0); /* ldr pc, [pc, #-4] */ + cx18_write_enc(cx, fw_entry_addr, 4); - cx18_write_enc(cx, 0xE51FF004, 0); - cx18_write_enc(cx, 0xa00000, 4); /* todo: not hardcoded */ /* Start APU */ cx18_write_reg_expect(cx, 0x00010000, CX18_PROC_SOFT_RESET, 0x00000000, 0x00010001); |