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nand/fsl_elbc: shrink SPL a bit by converting out_be32() to __raw_writel()

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This is needed to make room for a bugfix on p1_p2_rdb_pc.  A sync is used
before the final write to LSOR that initiates the transaction, to ensure
all the other set up has been completed.

Signed-off-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: Andy Fleming <afleming@freescale.com>
This commit is contained in:
Scott Wood 2012-08-08 15:03:33 +00:00 committed by Andy Fleming
parent 7de8a7169e
commit 7b8f6685fb
1 changed files with 25 additions and 22 deletions
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47
nand_spl/nand_boot_fsl_elbc.c
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@ -66,39 +66,42 @@ static void nand_load(unsigned int offs, int uboot_size, uchar *dst)
if (large) {
fmr |= FMR_ECCM;
out_be32(&regs->fcr, (NAND_CMD_READ0 << FCR_CMD0_SHIFT) |
(NAND_CMD_READSTART << FCR_CMD1_SHIFT));
out_be32(&regs->fir,
(FIR_OP_CW0 << FIR_OP0_SHIFT) |
(FIR_OP_CA << FIR_OP1_SHIFT) |
(FIR_OP_PA << FIR_OP2_SHIFT) |
(FIR_OP_CW1 << FIR_OP3_SHIFT) |
(FIR_OP_RBW << FIR_OP4_SHIFT));
__raw_writel((NAND_CMD_READ0 << FCR_CMD0_SHIFT) |
(NAND_CMD_READSTART << FCR_CMD1_SHIFT),
&regs->fcr);
__raw_writel(
(FIR_OP_CW0 << FIR_OP0_SHIFT) |
(FIR_OP_CA << FIR_OP1_SHIFT) |
(FIR_OP_PA << FIR_OP2_SHIFT) |
(FIR_OP_CW1 << FIR_OP3_SHIFT) |
(FIR_OP_RBW << FIR_OP4_SHIFT),
&regs->fir);
} else {
out_be32(&regs->fcr, NAND_CMD_READ0 << FCR_CMD0_SHIFT);
out_be32(&regs->fir,
(FIR_OP_CW0 << FIR_OP0_SHIFT) |
(FIR_OP_CA << FIR_OP1_SHIFT) |
(FIR_OP_PA << FIR_OP2_SHIFT) |
(FIR_OP_RBW << FIR_OP3_SHIFT));
__raw_writel(NAND_CMD_READ0 << FCR_CMD0_SHIFT, &regs->fcr);
__raw_writel(
(FIR_OP_CW0 << FIR_OP0_SHIFT) |
(FIR_OP_CA << FIR_OP1_SHIFT) |
(FIR_OP_PA << FIR_OP2_SHIFT) |
(FIR_OP_RBW << FIR_OP3_SHIFT),
&regs->fir);
}
out_be32(&regs->fbcr, 0);
clrsetbits_be32(&regs->bank[0].br, BR_DECC, BR_DECC_CHK_GEN);
__raw_writel(0, &regs->fbcr);
while (pos < uboot_size) {
int i = 0;
out_be32(&regs->fbar, offs >> block_shift);
__raw_writel(offs >> block_shift, &regs->fbar);
do {
int j;
unsigned int page_offs = (offs & (block_size - 1)) << 1;
out_be32(&regs->ltesr, ~0);
out_be32(&regs->lteatr, 0);
out_be32(&regs->fpar, page_offs);
out_be32(&regs->fmr, fmr);
out_be32(&regs->lsor, 0);
__raw_writel(~0, &regs->ltesr);
__raw_writel(0, &regs->lteatr);
__raw_writel(page_offs, &regs->fpar);
__raw_writel(fmr, &regs->fmr);
sync();
__raw_writel(0, &regs->lsor);
nand_wait();
page_offs %= WINDOW_SIZE;