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powerpc/85xx: load ucode from nand flash before qe_init

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In the case the QE's microcode is stored in nand flash, we need to load it from
NAND flash to ddr first then the qe_init can get the ucode correctly.

Signed-off-by: Haiying Wang <Haiying.Wang@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
This commit is contained in:
Haiying Wang 2011-02-07 16:14:15 -05:00 committed by Kumar Gala
parent 0b3b1766b7
commit a7b1e1b706
1 changed files with 17 additions and 0 deletions
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17
arch/powerpc/cpu/mpc85xx/cpu_init.c
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@ -37,6 +37,10 @@
#include <asm/fsl_law.h> #include <asm/fsl_law.h>
#include <asm/fsl_serdes.h> #include <asm/fsl_serdes.h>
#include "mp.h" #include "mp.h"
#ifdef CONFIG_SYS_QE_FW_IN_NAND
#include <nand.h>
#include <errno.h>
#endif
DECLARE_GLOBAL_DATA_PTR; DECLARE_GLOBAL_DATA_PTR;
@ -448,6 +452,19 @@ void cpu_secondary_init_r(void)
{ {
#ifdef CONFIG_QE #ifdef CONFIG_QE
uint qe_base = CONFIG_SYS_IMMR + 0x00080000; /* QE immr base */ uint qe_base = CONFIG_SYS_IMMR + 0x00080000; /* QE immr base */
#ifdef CONFIG_SYS_QE_FW_IN_NAND
int ret;
size_t fw_length = CONFIG_SYS_QE_FW_LENGTH;
/* load QE firmware from NAND flash to DDR first */
ret = nand_read(&nand_info[0], (loff_t)CONFIG_SYS_QE_FW_IN_NAND,
&fw_length, (u_char *)CONFIG_SYS_QE_FW_ADDR);
if (ret && ret == -EUCLEAN) {
printf ("NAND read for QE firmware at offset %x failed %d\n",
CONFIG_SYS_QE_FW_IN_NAND, ret);
}
#endif
qe_init(qe_base); qe_init(qe_base);
qe_reset(); qe_reset();
#endif #endif