85xx: add ability to upload QE firmware

Define the layout of a binary blob that contains a QE firmware and instructions
on how to upload it.  Add function qe_upload_firmware() to parse the blob and
perform the actual upload.  Add command-line command "qe fw" to take a firmware
blob in memory and upload it.  Update ft_cpu_setup() on 85xx to create the
'firmware' device tree node if U-Boot has uploaded a firmware.  Fully define
'struct rsp' in immap_qe.h to include the actual RISC Special Registers.

Signed-off-by: Timur Tabi <timur@freescale.com>

2 files changed, 32 insertions, 2 deletions

diff --git a/include/asm-ppc/immap_qe.h b/include/asm-ppc/immap_qe.h
index a16a6d3fc5..39da3771c9 100644
--- a/include/asm-ppc/immap_qe.h
+++ b/include/asm-ppc/immap_qe.h
@@ -513,10 +513,39 @@ typedef struct dbg {
 	u8 res2[0x48];
 } __attribute__ ((packed)) dbg_t;
 
-/* RISC Special Registers (Trap and Breakpoint)
+/*
+ * RISC Special Registers (Trap and Breakpoint).  These are described in
+ * the QE Developer's Handbook.
 */
 typedef struct rsp {
-	u8 fixme[0x100];
+	u32 tibcr[16];	/* Trap/instruction breakpoint control regs */
+	u8 res0[64];
+	u32 ibcr0;
+	u32 ibs0;
+	u32 ibcnr0;
+	u8 res1[4];
+	u32 ibcr1;
+	u32 ibs1;
+	u32 ibcnr1;
+	u32 npcr;
+	u32 dbcr;
+	u32 dbar;
+	u32 dbamr;
+	u32 dbsr;
+	u32 dbcnr;
+	u8 res2[12];
+	u32 dbdr_h;
+	u32 dbdr_l;
+	u32 dbdmr_h;
+	u32 dbdmr_l;
+	u32 bsr;
+	u32 bor;
+	u32 bior;
+	u8 res3[4];
+	u32 iatr[4];
+	u32 eccr;		/* Exception control configuration register */
+	u32 eicr;
+	u8 res4[0x100-0xf8];
 } __attribute__ ((packed)) rsp_t;
 
 typedef struct qe_immap {
diff --git a/include/fdt_support.h b/include/fdt_support.h
index 58e26abf82..7836f28cda 100644
--- a/include/fdt_support.h
+++ b/include/fdt_support.h
@@ -48,6 +48,7 @@ int fdt_fixup_memory(void *blob, u64 start, u64 size);
 void fdt_fixup_ethernet(void *fdt, bd_t *bd);
 int fdt_find_and_setprop(void *fdt, const char *node, const char *prop,
 			 const void *val, int len, int create);
+void fdt_fixup_qe_firmware(void *fdt);
 
 #ifdef CONFIG_OF_HAS_UBOOT_ENV
 int fdt_env(void *fdt);