[PATCH] cpm_uart: use DPRAM for early console

m8xx_cpm_hostalloc() can't rely on using the coherent DMA allocator early
on boot because the VM is not fully up yet.  Change it to use the on-board
DPRAM instead.

The current code relies on the "bootmem_page" allocated by
m8xx_cpm_reset(), which must be killed.

This is done in v2.4 but has never been forward ported to v2.6.
Signed-off-by: NMarcelo Tosatti <marcelo.tosatti@cyclades.com>
Cc: Pantelis Antoniou <panto@intracom.gr>
Cc: Kumar Gala <kumar.gala@freescale.com>
Cc: Russell King <rmk@arm.linux.org.uk>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

drivers/serial/cpm_uart/cpm_uart_cpm1.c

@@ -185,7 +185,7 @@ int cpm_uart_allocbuf(struct uart_cpm_port *pinfo, unsigned int is_con)
 	memsz = L1_CACHE_ALIGN(pinfo->rx_nrfifos * pinfo->rx_fifosize) +
 	    L1_CACHE_ALIGN(pinfo->tx_nrfifos * pinfo->tx_fifosize);
 	if (is_con) {
-		mem_addr = (u8 *) m8xx_cpm_hostalloc(memsz);
+		mem_addr = (u8 *) cpm_dpram_addr(cpm_dpalloc(memsz, 8));
 		dma_addr = 0;
 	} else
 		mem_addr = dma_alloc_coherent(NULL, memsz, &dma_addr,