83xx/85xx/86xx: LBC register cleanup
Currently, 83xx, 86xx, and 85xx have a lot of duplicated code
dedicated to defining and manipulating the LBC registers. Merge
this into a single spot.
To do this, we have to decide on a common name for the data structure
that holds the lbc registers - it will now be known as fsl_lbc_t, and we
adopt a common name for the immap layouts that include the lbc - this was
previously known as either im_lbc or lbus; use the former.
In addition, create accessors for the BR/OR regs that use in/out_be32
and use those instead of the mismash of access methods currently in play.
I have done a successful ppc build all and tested a board or two from
each processor family.
Signed-off-by: Becky Bruce <beckyb@kernel.crashing.org>
Acked-by: Kim Phillips <kim.phillips@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
diff --git a/board/tqc/tqm85xx/nand.c b/board/tqc/tqm85xx/nand.c
index 3da689a..4b16c31 100644
--- a/board/tqc/tqm85xx/nand.c
+++ b/board/tqc/tqm85xx/nand.c
@@ -377,7 +377,7 @@
*/
static void upmb_write (u_char addr, ulong val)
{
- volatile ccsr_lbc_t *lbc = (void *)(CONFIG_SYS_MPC85xx_LBC_ADDR);
+ volatile fsl_lbc_t *lbc = LBC_BASE_ADDR;
out_be32 (&lbc->mdr, val);
@@ -393,14 +393,14 @@
/*
* Initialize UPM for NAND flash access.
*/
-static void nand_upm_setup (volatile ccsr_lbc_t *lbc)
+static void nand_upm_setup (volatile fsl_lbc_t *lbc)
{
uint i, j;
uint or3 = CONFIG_SYS_OR3_PRELIM;
uint clock = get_lbc_clock ();
- out_be32 (&lbc->br3, 0); /* disable bank and reset all bits */
- out_be32 (&lbc->br3, CONFIG_SYS_BR3_PRELIM);
+ set_lbc_br(3, 0); /* disable bank and reset all bits */
+ set_lbc_br(3, CONFIG_SYS_BR3_PRELIM);
/*
* Search appropriate UPM table for bus clock.
@@ -424,7 +424,7 @@
/* EAD must be set due to TQM8548 timing specification */
or3 |= OR_UPM_EAD;
- out_be32 (&lbc->or3, or3);
+ set_lbc_or(3, or3);
/* Assign address of table */
nand_upm_patt = upm_freq_table[i].upm_patt;
@@ -458,7 +458,7 @@
int board_nand_init (struct nand_chip *nand)
{
- volatile ccsr_lbc_t *lbc = (void *)(CONFIG_SYS_MPC85xx_LBC_ADDR);
+ volatile fsl_lbc_t *lbc = LBC_BASE_ADDR;
if (!nand_upm_patt)
nand_upm_setup (lbc);