summaryrefslogtreecommitdiff
path: root/drivers
diff options
context:
space:
mode:
Diffstat (limited to 'drivers')
-rw-r--r--drivers/block/floppy.c2
-rw-r--r--drivers/input/serio/i8042-io.h4
-rw-r--r--drivers/serial/cpm_uart/cpm_uart.h49
-rw-r--r--drivers/serial/cpm_uart/cpm_uart_core.c280
-rw-r--r--drivers/serial/cpm_uart/cpm_uart_cpm1.c54
-rw-r--r--drivers/serial/cpm_uart/cpm_uart_cpm2.c14
6 files changed, 268 insertions, 135 deletions
diff --git a/drivers/block/floppy.c b/drivers/block/floppy.c
index bedb689b051..dff1e67b1dd 100644
--- a/drivers/block/floppy.c
+++ b/drivers/block/floppy.c
@@ -4301,7 +4301,7 @@ static int __init floppy_init(void)
}
use_virtual_dma = can_use_virtual_dma & 1;
-#if defined(CONFIG_PPC64)
+#if defined(CONFIG_PPC_MERGE)
if (check_legacy_ioport(FDC1)) {
del_timer(&fd_timeout);
err = -ENODEV;
diff --git a/drivers/input/serio/i8042-io.h b/drivers/input/serio/i8042-io.h
index 9a922164425..cc21914fbc7 100644
--- a/drivers/input/serio/i8042-io.h
+++ b/drivers/input/serio/i8042-io.h
@@ -67,14 +67,14 @@ static inline int i8042_platform_init(void)
* On some platforms touching the i8042 data register region can do really
* bad things. Because of this the region is always reserved on such boxes.
*/
-#if !defined(__sh__) && !defined(__alpha__) && !defined(__mips__) && !defined(CONFIG_PPC64)
+#if !defined(__sh__) && !defined(__alpha__) && !defined(__mips__) && !defined(CONFIG_PPC_MERGE)
if (!request_region(I8042_DATA_REG, 16, "i8042"))
return -EBUSY;
#endif
i8042_reset = 1;
-#if defined(CONFIG_PPC64)
+#if defined(CONFIG_PPC_MERGE)
if (check_legacy_ioport(I8042_DATA_REG))
return -EBUSY;
if (!request_region(I8042_DATA_REG, 16, "i8042"))
diff --git a/drivers/serial/cpm_uart/cpm_uart.h b/drivers/serial/cpm_uart/cpm_uart.h
index 73c8a088c16..aa5eb7ddeda 100644
--- a/drivers/serial/cpm_uart/cpm_uart.h
+++ b/drivers/serial/cpm_uart/cpm_uart.h
@@ -10,6 +10,8 @@
#define CPM_UART_H
#include <linux/config.h>
+#include <linux/platform_device.h>
+#include <linux/fs_uart_pd.h>
#if defined(CONFIG_CPM2)
#include "cpm_uart_cpm2.h"
@@ -26,14 +28,14 @@
#define FLAG_SMC 0x00000002
#define FLAG_CONSOLE 0x00000001
-#define UART_SMC1 0
-#define UART_SMC2 1
-#define UART_SCC1 2
-#define UART_SCC2 3
-#define UART_SCC3 4
-#define UART_SCC4 5
+#define UART_SMC1 fsid_smc1_uart
+#define UART_SMC2 fsid_smc2_uart
+#define UART_SCC1 fsid_scc1_uart
+#define UART_SCC2 fsid_scc2_uart
+#define UART_SCC3 fsid_scc3_uart
+#define UART_SCC4 fsid_scc4_uart
-#define UART_NR 6
+#define UART_NR fs_uart_nr
#define RX_NUM_FIFO 4
#define RX_BUF_SIZE 32
@@ -64,6 +66,7 @@ struct uart_cpm_port {
uint dp_addr;
void *mem_addr;
dma_addr_t dma_addr;
+ u32 mem_size;
/* helpers */
int baud;
int bits;
@@ -90,4 +93,36 @@ void scc2_lineif(struct uart_cpm_port *pinfo);
void scc3_lineif(struct uart_cpm_port *pinfo);
void scc4_lineif(struct uart_cpm_port *pinfo);
+/*
+ virtual to phys transtalion
+*/
+static inline unsigned long cpu2cpm_addr(void* addr, struct uart_cpm_port *pinfo)
+{
+ int offset;
+ u32 val = (u32)addr;
+ /* sane check */
+ if ((val >= (u32)pinfo->mem_addr) &&
+ (val<((u32)pinfo->mem_addr + pinfo->mem_size))) {
+ offset = val - (u32)pinfo->mem_addr;
+ return pinfo->dma_addr+offset;
+ }
+ printk("%s(): address %x to translate out of range!\n", __FUNCTION__, val);
+ return 0;
+}
+
+static inline void *cpm2cpu_addr(unsigned long addr, struct uart_cpm_port *pinfo)
+{
+ int offset;
+ u32 val = addr;
+ /* sane check */
+ if ((val >= pinfo->dma_addr) &&
+ (val<(pinfo->dma_addr + pinfo->mem_size))) {
+ offset = val - (u32)pinfo->dma_addr;
+ return (void*)(pinfo->mem_addr+offset);
+ }
+ printk("%s(): address %x to translate out of range!\n", __FUNCTION__, val);
+ return 0;
+}
+
+
#endif /* CPM_UART_H */
diff --git a/drivers/serial/cpm_uart/cpm_uart_core.c b/drivers/serial/cpm_uart/cpm_uart_core.c
index b7bf4c698a4..ced193bf9e1 100644
--- a/drivers/serial/cpm_uart/cpm_uart_core.c
+++ b/drivers/serial/cpm_uart/cpm_uart_core.c
@@ -41,6 +41,7 @@
#include <linux/device.h>
#include <linux/bootmem.h>
#include <linux/dma-mapping.h>
+#include <linux/fs_uart_pd.h>
#include <asm/io.h>
#include <asm/irq.h>
@@ -60,7 +61,7 @@
/* Track which ports are configured as uarts */
int cpm_uart_port_map[UART_NR];
/* How many ports did we config as uarts */
-int cpm_uart_nr;
+int cpm_uart_nr = 0;
/**************************************************************/
@@ -71,18 +72,36 @@ static void cpm_uart_initbd(struct uart_cpm_port *pinfo);
/**************************************************************/
-static inline unsigned long cpu2cpm_addr(void *addr)
+
+/* Place-holder for board-specific stuff */
+struct platform_device* __attribute__ ((weak)) __init
+early_uart_get_pdev(int index)
{
- if ((unsigned long)addr >= CPM_ADDR)
- return (unsigned long)addr;
- return virt_to_bus(addr);
+ return NULL;
}
-static inline void *cpm2cpu_addr(unsigned long addr)
+
+void cpm_uart_count(void)
{
- if (addr >= CPM_ADDR)
- return (void *)addr;
- return bus_to_virt(addr);
+ cpm_uart_nr = 0;
+#ifdef CONFIG_SERIAL_CPM_SMC1
+ cpm_uart_port_map[cpm_uart_nr++] = UART_SMC1;
+#endif
+#ifdef CONFIG_SERIAL_CPM_SMC2
+ cpm_uart_port_map[cpm_uart_nr++] = UART_SMC2;
+#endif
+#ifdef CONFIG_SERIAL_CPM_SCC1
+ cpm_uart_port_map[cpm_uart_nr++] = UART_SCC1;
+#endif
+#ifdef CONFIG_SERIAL_CPM_SCC2
+ cpm_uart_port_map[cpm_uart_nr++] = UART_SCC2;
+#endif
+#ifdef CONFIG_SERIAL_CPM_SCC3
+ cpm_uart_port_map[cpm_uart_nr++] = UART_SCC3;
+#endif
+#ifdef CONFIG_SERIAL_CPM_SCC4
+ cpm_uart_port_map[cpm_uart_nr++] = UART_SCC4;
+#endif
}
/*
@@ -258,7 +277,7 @@ static void cpm_uart_int_rx(struct uart_port *port, struct pt_regs *regs)
}
/* get pointer */
- cp = cpm2cpu_addr(bdp->cbd_bufaddr);
+ cp = cpm2cpu_addr(bdp->cbd_bufaddr, pinfo);
/* loop through the buffer */
while (i-- > 0) {
@@ -601,7 +620,7 @@ static int cpm_uart_tx_pump(struct uart_port *port)
/* Pick next descriptor and fill from buffer */
bdp = pinfo->tx_cur;
- p = cpm2cpu_addr(bdp->cbd_bufaddr);
+ p = cpm2cpu_addr(bdp->cbd_bufaddr, pinfo);
*p++ = port->x_char;
bdp->cbd_datlen = 1;
@@ -628,7 +647,7 @@ static int cpm_uart_tx_pump(struct uart_port *port)
while (!(bdp->cbd_sc & BD_SC_READY) && (xmit->tail != xmit->head)) {
count = 0;
- p = cpm2cpu_addr(bdp->cbd_bufaddr);
+ p = cpm2cpu_addr(bdp->cbd_bufaddr, pinfo);
while (count < pinfo->tx_fifosize) {
*p++ = xmit->buf[xmit->tail];
xmit->tail = (xmit->tail + 1) & (UART_XMIT_SIZE - 1);
@@ -677,12 +696,12 @@ static void cpm_uart_initbd(struct uart_cpm_port *pinfo)
mem_addr = pinfo->mem_addr;
bdp = pinfo->rx_cur = pinfo->rx_bd_base;
for (i = 0; i < (pinfo->rx_nrfifos - 1); i++, bdp++) {
- bdp->cbd_bufaddr = cpu2cpm_addr(mem_addr);
+ bdp->cbd_bufaddr = cpu2cpm_addr(mem_addr, pinfo);
bdp->cbd_sc = BD_SC_EMPTY | BD_SC_INTRPT;
mem_addr += pinfo->rx_fifosize;
}
- bdp->cbd_bufaddr = cpu2cpm_addr(mem_addr);
+ bdp->cbd_bufaddr = cpu2cpm_addr(mem_addr, pinfo);
bdp->cbd_sc = BD_SC_WRAP | BD_SC_EMPTY | BD_SC_INTRPT;
/* Set the physical address of the host memory
@@ -692,12 +711,12 @@ static void cpm_uart_initbd(struct uart_cpm_port *pinfo)
mem_addr = pinfo->mem_addr + L1_CACHE_ALIGN(pinfo->rx_nrfifos * pinfo->rx_fifosize);
bdp = pinfo->tx_cur = pinfo->tx_bd_base;
for (i = 0; i < (pinfo->tx_nrfifos - 1); i++, bdp++) {
- bdp->cbd_bufaddr = cpu2cpm_addr(mem_addr);
+ bdp->cbd_bufaddr = cpu2cpm_addr(mem_addr, pinfo);
bdp->cbd_sc = BD_SC_INTRPT;
mem_addr += pinfo->tx_fifosize;
}
- bdp->cbd_bufaddr = cpu2cpm_addr(mem_addr);
+ bdp->cbd_bufaddr = cpu2cpm_addr(mem_addr, pinfo);
bdp->cbd_sc = BD_SC_WRAP | BD_SC_INTRPT;
}
@@ -829,14 +848,6 @@ static int cpm_uart_request_port(struct uart_port *port)
if (pinfo->flags & FLAG_CONSOLE)
return 0;
- /*
- * Setup any port IO, connect any baud rate generators,
- * etc. This is expected to be handled by board
- * dependant code
- */
- if (pinfo->set_lineif)
- pinfo->set_lineif(pinfo);
-
if (IS_SMC(pinfo)) {
pinfo->smcp->smc_smcm &= ~(SMCM_RX | SMCM_TX);
pinfo->smcp->smc_smcmr &= ~(SMCMR_REN | SMCMR_TEN);
@@ -988,6 +999,54 @@ struct uart_cpm_port cpm_uart_ports[UART_NR] = {
},
};
+int cpm_uart_drv_get_platform_data(struct platform_device *pdev, int is_con)
+{
+ struct resource *r;
+ struct fs_uart_platform_info *pdata = pdev->dev.platform_data;
+ int idx = pdata->fs_no; /* It is UART_SMCx or UART_SCCx index */
+ struct uart_cpm_port *pinfo;
+ int line;
+ u32 mem, pram;
+
+ for (line=0; line<UART_NR && cpm_uart_port_map[line]!=pdata->fs_no; line++);
+
+ pinfo = (struct uart_cpm_port *) &cpm_uart_ports[idx];
+
+ pinfo->brg = pdata->brg;
+
+ if (!is_con) {
+ pinfo->port.line = line;
+ pinfo->port.flags = UPF_BOOT_AUTOCONF;
+ }
+
+ if (!(r = platform_get_resource_byname(pdev, IORESOURCE_MEM, "regs")))
+ return -EINVAL;
+ mem = r->start;
+
+ if (!(r = platform_get_resource_byname(pdev, IORESOURCE_MEM, "pram")))
+ return -EINVAL;
+ pram = r->start;
+
+ if(idx > fsid_smc2_uart) {
+ pinfo->sccp = (scc_t *)mem;
+ pinfo->sccup = (scc_uart_t *)pram;
+ } else {
+ pinfo->smcp = (smc_t *)mem;
+ pinfo->smcup = (smc_uart_t *)pram;
+ }
+ pinfo->tx_nrfifos = pdata->tx_num_fifo;
+ pinfo->tx_fifosize = pdata->tx_buf_size;
+
+ pinfo->rx_nrfifos = pdata->rx_num_fifo;
+ pinfo->rx_fifosize = pdata->rx_buf_size;
+
+ pinfo->port.uartclk = pdata->uart_clk;
+ pinfo->port.mapbase = (unsigned long)mem;
+ pinfo->port.irq = platform_get_irq(pdev, 0);
+
+ return 0;
+}
+
#ifdef CONFIG_SERIAL_CPM_CONSOLE
/*
* Print a string to the serial port trying not to disturb
@@ -1027,7 +1086,7 @@ static void cpm_uart_console_write(struct console *co, const char *s,
* If the buffer address is in the CPM DPRAM, don't
* convert it.
*/
- cp = cpm2cpu_addr(bdp->cbd_bufaddr);
+ cp = cpm2cpu_addr(bdp->cbd_bufaddr, pinfo);
*cp = *s;
@@ -1044,7 +1103,7 @@ static void cpm_uart_console_write(struct console *co, const char *s,
while ((bdp->cbd_sc & BD_SC_READY) != 0)
;
- cp = cpm2cpu_addr(bdp->cbd_bufaddr);
+ cp = cpm2cpu_addr(bdp->cbd_bufaddr, pinfo);
*cp = 13;
bdp->cbd_datlen = 1;
@@ -1067,9 +1126,7 @@ static void cpm_uart_console_write(struct console *co, const char *s,
pinfo->tx_cur = (volatile cbd_t *) bdp;
}
-/*
- * Setup console. Be careful is called early !
- */
+
static int __init cpm_uart_console_setup(struct console *co, char *options)
{
struct uart_port *port;
@@ -1080,9 +1137,27 @@ static int __init cpm_uart_console_setup(struct console *co, char *options)
int flow = 'n';
int ret;
+ struct fs_uart_platform_info *pdata;
+ struct platform_device* pdev = early_uart_get_pdev(co->index);
+
port =
(struct uart_port *)&cpm_uart_ports[cpm_uart_port_map[co->index]];
pinfo = (struct uart_cpm_port *)port;
+ if (!pdev) {
+ pr_info("cpm_uart: console: compat mode\n");
+ /* compatibility - will be cleaned up */
+ cpm_uart_init_portdesc();
+
+ if (pinfo->set_lineif)
+ pinfo->set_lineif(pinfo);
+ } else {
+ pdata = pdev->dev.platform_data;
+ if (pdata)
+ if (pdata->init_ioports)
+ pdata->init_ioports();
+
+ cpm_uart_drv_get_platform_data(pdev, 1);
+ }
pinfo->flags |= FLAG_CONSOLE;
@@ -1097,14 +1172,6 @@ static int __init cpm_uart_console_setup(struct console *co, char *options)
baud = 9600;
}
- /*
- * Setup any port IO, connect any baud rate generators,
- * etc. This is expected to be handled by board
- * dependant code
- */
- if (pinfo->set_lineif)
- pinfo->set_lineif(pinfo);
-
if (IS_SMC(pinfo)) {
pinfo->smcp->smc_smcm &= ~(SMCM_RX | SMCM_TX);
pinfo->smcp->smc_smcmr &= ~(SMCMR_REN | SMCMR_TEN);
@@ -1143,11 +1210,8 @@ static struct console cpm_scc_uart_console = {
int __init cpm_uart_console_init(void)
{
- int ret = cpm_uart_init_portdesc();
-
- if (!ret)
- register_console(&cpm_scc_uart_console);
- return ret;
+ register_console(&cpm_scc_uart_console);
+ return 0;
}
console_initcall(cpm_uart_console_init);
@@ -1165,44 +1229,130 @@ static struct uart_driver cpm_reg = {
.minor = SERIAL_CPM_MINOR,
.cons = CPM_UART_CONSOLE,
};
-
-static int __init cpm_uart_init(void)
+static int cpm_uart_drv_probe(struct device *dev)
{
- int ret, i;
-
- printk(KERN_INFO "Serial: CPM driver $Revision: 0.01 $\n");
+ struct platform_device *pdev = to_platform_device(dev);
+ struct fs_uart_platform_info *pdata;
+ int ret = -ENODEV;
-#ifndef CONFIG_SERIAL_CPM_CONSOLE
- ret = cpm_uart_init_portdesc();
- if (ret)
+ if(!pdev) {
+ printk(KERN_ERR"CPM UART: platform data missing!\n");
return ret;
-#endif
+ }
- cpm_reg.nr = cpm_uart_nr;
- ret = uart_register_driver(&cpm_reg);
+ pdata = pdev->dev.platform_data;
+ pr_debug("cpm_uart_drv_probe: Adding CPM UART %d\n",
+ cpm_uart_port_map[pdata->fs_no]);
- if (ret)
+ if ((ret = cpm_uart_drv_get_platform_data(pdev, 0)))
return ret;
- for (i = 0; i < cpm_uart_nr; i++) {
- int con = cpm_uart_port_map[i];
- cpm_uart_ports[con].port.line = i;
- cpm_uart_ports[con].port.flags = UPF_BOOT_AUTOCONF;
- uart_add_one_port(&cpm_reg, &cpm_uart_ports[con].port);
- }
+ if (pdata->init_ioports)
+ pdata->init_ioports();
- return ret;
+ ret = uart_add_one_port(&cpm_reg, &cpm_uart_ports[pdata->fs_no].port);
+
+ return ret;
}
-static void __exit cpm_uart_exit(void)
+static int cpm_uart_drv_remove(struct device *dev)
+{
+ struct platform_device *pdev = to_platform_device(dev);
+ struct fs_uart_platform_info *pdata = pdev->dev.platform_data;
+
+ pr_debug("cpm_uart_drv_remove: Removing CPM UART %d\n",
+ cpm_uart_port_map[pdata->fs_no]);
+
+ uart_remove_one_port(&cpm_reg, &cpm_uart_ports[pdata->fs_no].port);
+ return 0;
+}
+
+static struct device_driver cpm_smc_uart_driver = {
+ .name = "fsl-cpm-smc:uart",
+ .bus = &platform_bus_type,
+ .probe = cpm_uart_drv_probe,
+ .remove = cpm_uart_drv_remove,
+};
+
+static struct device_driver cpm_scc_uart_driver = {
+ .name = "fsl-cpm-scc:uart",
+ .bus = &platform_bus_type,
+ .probe = cpm_uart_drv_probe,
+ .remove = cpm_uart_drv_remove,
+};
+
+/*
+ This is supposed to match uart devices on platform bus,
+ */
+static int match_is_uart (struct device* dev, void* data)
{
+ struct platform_device* pdev = container_of(dev, struct platform_device, dev);
+ int ret = 0;
+ /* this was setfunc as uart */
+ if(strstr(pdev->name,":uart")) {
+ ret = 1;
+ }
+ return ret;
+}
+
+
+static int cpm_uart_init(void) {
+
+ int ret;
int i;
+ struct device *dev;
+ printk(KERN_INFO "Serial: CPM driver $Revision: 0.02 $\n");
+
+ /* lookup the bus for uart devices */
+ dev = bus_find_device(&platform_bus_type, NULL, 0, match_is_uart);
+
+ /* There are devices on the bus - all should be OK */
+ if (dev) {
+ cpm_uart_count();
+ cpm_reg.nr = cpm_uart_nr;
+
+ if (!(ret = uart_register_driver(&cpm_reg))) {
+ if ((ret = driver_register(&cpm_smc_uart_driver))) {
+ uart_unregister_driver(&cpm_reg);
+ return ret;
+ }
+ if ((ret = driver_register(&cpm_scc_uart_driver))) {
+ driver_unregister(&cpm_scc_uart_driver);
+ uart_unregister_driver(&cpm_reg);
+ }
+ }
+ } else {
+ /* No capable platform devices found - falling back to legacy mode */
+ pr_info("cpm_uart: WARNING: no UART devices found on platform bus!\n");
+ pr_info(
+ "cpm_uart: the driver will guess configuration, but this mode is no longer supported.\n");
+#ifndef CONFIG_SERIAL_CPM_CONSOLE
+ ret = cpm_uart_init_portdesc();
+ if (ret)
+ return ret;
+#endif
+
+ cpm_reg.nr = cpm_uart_nr;
+ ret = uart_register_driver(&cpm_reg);
+
+ if (ret)
+ return ret;
+
+ for (i = 0; i < cpm_uart_nr; i++) {
+ int con = cpm_uart_port_map[i];
+ cpm_uart_ports[con].port.line = i;
+ cpm_uart_ports[con].port.flags = UPF_BOOT_AUTOCONF;
+ uart_add_one_port(&cpm_reg, &cpm_uart_ports[con].port);
+ }
- for (i = 0; i < cpm_uart_nr; i++) {
- int con = cpm_uart_port_map[i];
- uart_remove_one_port(&cpm_reg, &cpm_uart_ports[con].port);
}
+ return ret;
+}
+static void __exit cpm_uart_exit(void)
+{
+ driver_unregister(&cpm_scc_uart_driver);
+ driver_unregister(&cpm_smc_uart_driver);
uart_unregister_driver(&cpm_reg);
}
diff --git a/drivers/serial/cpm_uart/cpm_uart_cpm1.c b/drivers/serial/cpm_uart/cpm_uart_cpm1.c
index d789ee55cbb..a5a30622637 100644
--- a/drivers/serial/cpm_uart/cpm_uart_cpm1.c
+++ b/drivers/serial/cpm_uart/cpm_uart_cpm1.c
@@ -81,58 +81,11 @@ void cpm_line_cr_cmd(int line, int cmd)
void smc1_lineif(struct uart_cpm_port *pinfo)
{
- volatile cpm8xx_t *cp = cpmp;
-
- (void)cp; /* fix warning */
-#if defined (CONFIG_MPC885ADS)
- /* Enable SMC1 transceivers */
- {
- cp->cp_pepar |= 0x000000c0;
- cp->cp_pedir &= ~0x000000c0;
- cp->cp_peso &= ~0x00000040;
- cp->cp_peso |= 0x00000080;
- }
-#elif defined (CONFIG_MPC86XADS)
- unsigned int iobits = 0x000000c0;
-
- if (!pinfo->is_portb) {
- cp->cp_pbpar |= iobits;
- cp->cp_pbdir &= ~iobits;
- cp->cp_pbodr &= ~iobits;
- } else {
- ((immap_t *)IMAP_ADDR)->im_ioport.iop_papar |= iobits;
- ((immap_t *)IMAP_ADDR)->im_ioport.iop_padir &= ~iobits;
- ((immap_t *)IMAP_ADDR)->im_ioport.iop_paodr &= ~iobits;
- }
-#endif
pinfo->brg = 1;
}
void smc2_lineif(struct uart_cpm_port *pinfo)
{
- volatile cpm8xx_t *cp = cpmp;
-
- (void)cp; /* fix warning */
-#if defined (CONFIG_MPC885ADS)
- cp->cp_pepar |= 0x00000c00;
- cp->cp_pedir &= ~0x00000c00;
- cp->cp_peso &= ~0x00000400;
- cp->cp_peso |= 0x00000800;
-#elif defined (CONFIG_MPC86XADS)
- unsigned int iobits = 0x00000c00;
-
- if (!pinfo->is_portb) {
- cp->cp_pbpar |= iobits;
- cp->cp_pbdir &= ~iobits;
- cp->cp_pbodr &= ~iobits;
- } else {
- ((immap_t *)IMAP_ADDR)->im_ioport.iop_papar |= iobits;
- ((immap_t *)IMAP_ADDR)->im_ioport.iop_padir &= ~iobits;
- ((immap_t *)IMAP_ADDR)->im_ioport.iop_paodr &= ~iobits;
- }
-
-#endif
-
pinfo->brg = 2;
}
@@ -191,7 +144,7 @@ int cpm_uart_allocbuf(struct uart_cpm_port *pinfo, unsigned int is_con)
/* was hostalloc but changed cause it blows away the */
/* large tlb mapping when pinning the kernel area */
mem_addr = (u8 *) cpm_dpram_addr(cpm_dpalloc(memsz, 8));
- dma_addr = 0;
+ dma_addr = (u32)mem_addr;
} else
mem_addr = dma_alloc_coherent(NULL, memsz, &dma_addr,
GFP_KERNEL);
@@ -204,8 +157,9 @@ int cpm_uart_allocbuf(struct uart_cpm_port *pinfo, unsigned int is_con)
}
pinfo->dp_addr = dp_offset;
- pinfo->mem_addr = mem_addr;
- pinfo->dma_addr = dma_addr;
+ pinfo->mem_addr = mem_addr; /* virtual address*/
+ pinfo->dma_addr = dma_addr; /* physical address*/
+ pinfo->mem_size = memsz;
pinfo->rx_buf = mem_addr;
pinfo->tx_buf = pinfo->rx_buf + L1_CACHE_ALIGN(pinfo->rx_nrfifos
diff --git a/drivers/serial/cpm_uart/cpm_uart_cpm2.c b/drivers/serial/cpm_uart/cpm_uart_cpm2.c
index fd9e53ed3fe..7c6b07aeea9 100644
--- a/drivers/serial/cpm_uart/cpm_uart_cpm2.c
+++ b/drivers/serial/cpm_uart/cpm_uart_cpm2.c
@@ -142,14 +142,6 @@ void scc2_lineif(struct uart_cpm_port *pinfo)
* be supported in a sane fashion.
*/
#ifndef CONFIG_STX_GP3
-#ifdef CONFIG_MPC8560_ADS
- volatile iop_cpm2_t *io = &cpm2_immr->im_ioport;
- io->iop_ppard |= 0x00000018;
- io->iop_psord &= ~0x00000008; /* Rx */
- io->iop_psord &= ~0x00000010; /* Tx */
- io->iop_pdird &= ~0x00000008; /* Rx */
- io->iop_pdird |= 0x00000010; /* Tx */
-#else
volatile iop_cpm2_t *io = &cpm2_immr->im_ioport;
io->iop_pparb |= 0x008b0000;
io->iop_pdirb |= 0x00880000;
@@ -157,7 +149,6 @@ void scc2_lineif(struct uart_cpm_port *pinfo)
io->iop_pdirb &= ~0x00030000;
io->iop_psorb &= ~0x00030000;
#endif
-#endif
cpm2_immr->im_cpmux.cmx_scr &= 0xff00ffff;
cpm2_immr->im_cpmux.cmx_scr |= 0x00090000;
pinfo->brg = 2;
@@ -218,8 +209,10 @@ 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)
+ if (is_con) {
mem_addr = alloc_bootmem(memsz);
+ dma_addr = mem_addr;
+ }
else
mem_addr = dma_alloc_coherent(NULL, memsz, &dma_addr,
GFP_KERNEL);
@@ -234,6 +227,7 @@ int cpm_uart_allocbuf(struct uart_cpm_port *pinfo, unsigned int is_con)
pinfo->dp_addr = dp_offset;
pinfo->mem_addr = mem_addr;
pinfo->dma_addr = dma_addr;
+ pinfo->mem_size = memsz;
pinfo->rx_buf = mem_addr;
pinfo->tx_buf = pinfo->rx_buf + L1_CACHE_ALIGN(pinfo->rx_nrfifos
generated by cgit v1.2.3 (git 2.25.1) at 2024-10-31 15:34:28 +0000