[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: Marcelo Tosatti <[email protected]> Cc: Pantelis Antoniou <[email protected]> Cc: Kumar Gala <[email protected]> Cc: Russell King <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
vbatts · Jul 27, 2005 · 4e4b795 · 4e4b795
1 parent 6ddcc91
commit 4e4b795
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/drivers/serial/cpm_uart/cpm_uart_cpm1.c b/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,