qe has been supported by arm board ls1021, qe-uart need
to be supported by ls1021.
modify the code to make qe-uart can work on both powerpc
and ls1021.
Signed-off-by: Zhao Qiang <B45475@xxxxxxxxxxxxx>
---
arch/arm/include/asm/delay.h | 16 ++++
arch/arm/include/asm/io.h | 28 +++++++
arch/arm/include/asm/irq.h | 2 +
arch/arm/kernel/irq.c | 7 ++
drivers/soc/qe/Kconfig | 1 -
drivers/soc/qe/qe.c | 63 ++++++++-------
drivers/soc/qe/qe_common.c | 2 +-
drivers/soc/qe/qe_ic.c | 7 +-
drivers/soc/qe/qe_io.c | 53 ++++++-------
drivers/soc/qe/ucc_slow.c | 40 +++++-----
drivers/tty/serial/ucc_uart.c | 176 +++++++++++++++++++++---------------------
include/linux/fsl/qe.h | 21 +++++
12 files changed, 245 insertions(+), 171 deletions(-)
diff --git a/arch/arm/include/asm/delay.h b/arch/arm/include/asm/delay.h
index dff714d..a932f99 100644
--- a/arch/arm/include/asm/delay.h
+++ b/arch/arm/include/asm/delay.h
@@ -57,6 +57,22 @@ extern void __bad_udelay(void);
__const_udelay((n) * UDELAY_MULT)) : \
__udelay(n))
+#define spin_event_timeout(condition, timeout, delay) \
+({ \
+ typeof(condition) __ret; \
+ int i = 0; \
+ while (!(__ret = (condition)) && (i++ < timeout)) { \
+ if (delay) \
+ udelay(delay); \
+ else \
+ cpu_relax(); \
+ udelay(1); \
+ } \
+ if (!__ret) \
+ __ret = (condition); \
+ __ret; \
+})
+
/* Loop-based definitions for assembly code. */
extern void __loop_delay(unsigned long loops);
extern void __loop_udelay(unsigned long usecs);
diff --git a/arch/arm/include/asm/io.h b/arch/arm/include/asm/io.h
index d070741..4bec694 100644
--- a/arch/arm/include/asm/io.h
+++ b/arch/arm/include/asm/io.h
@@ -206,6 +206,34 @@ extern int pci_ioremap_io(unsigned int offset, phys_addr_t phys_addr);
#endif
#endif
+/* access ports */
+#define setbits32(_addr, _v) iowrite32be(ioread32be(_addr) | (_v), (_addr))
+#define clrbits32(_addr, _v) iowrite32be(ioread32be(_addr) & ~(_v), (_addr))
+
+#define setbits16(_addr, _v) iowrite16be(ioread16be(_addr) | (_v), (_addr))
+#define clrbits16(_addr, _v) iowrite16be(ioread16be(_addr) & ~(_v), (_addr))
+
+#define setbits8(_addr, _v) iowrite8(ioread8(_addr) | (_v), (_addr))
+#define clrbits8(_addr, _v) iowrite8(ioread8(_addr) & ~(_v), (_addr))
+
+/* Clear and set bits in one shot. These macros can be used to clear and
+ * set multiple bits in a register using a single read-modify-write. These
+ * macros can also be used to set a multiple-bit bit pattern using a mask,
+ * by specifying the mask in the 'clear' parameter and the new bit pattern
+ * in the 'set' parameter.
+ */
+
+#define clrsetbits_be32(addr, clear, set) \
+ iowrite32be((ioread32be(addr) & ~(clear)) | (set), (addr))
+#define clrsetbits_le32(addr, clear, set) \
+ iowrite32le((ioread32le(addr) & ~(clear)) | (set), (addr))
+#define clrsetbits_be16(addr, clear, set) \
+ iowrite16be((ioread16be(addr) & ~(clear)) | (set), (addr))
+#define clrsetbits_le16(addr, clear, set) \
+ iowrite16le((ioread16le(addr) & ~(clear)) | (set), (addr))
+#define clrsetbits_8(addr, clear, set) \
+ iowrite8((ioread8(addr) & ~(clear)) | (set), (addr))
+
/*
* IO port access primitives
* -------------------------
diff --git a/arch/arm/include/asm/irq.h b/arch/arm/include/asm/irq.h
index 53c15de..4358904 100644
--- a/arch/arm/include/asm/irq.h
+++ b/arch/arm/include/asm/irq.h
@@ -30,6 +30,8 @@ extern void asm_do_IRQ(unsigned int, struct pt_regs *);
void handle_IRQ(unsigned int, struct pt_regs *);
void init_IRQ(void);
+extern irq_hw_number_t virq_to_hw(unsigned int virq);
+
#ifdef CONFIG_MULTI_IRQ_HANDLER
extern void (*handle_arch_irq)(struct pt_regs *);
extern void set_handle_irq(void (*handle_irq)(struct pt_regs *));
diff --git a/arch/arm/kernel/irq.c b/arch/arm/kernel/irq.c
index 9723d17..afa204a 100644
--- a/arch/arm/kernel/irq.c
+++ b/arch/arm/kernel/irq.c
@@ -121,6 +121,13 @@ void __init init_IRQ(void)
machine_desc->init_irq();
}
+irq_hw_number_t virq_to_hw(unsigned int virq)
+{
+ struct irq_data *irq_data = irq_get_irq_data(virq);
+ return WARN_ON(!irq_data) ? 0 : irq_data->hwirq;
+}
+EXPORT_SYMBOL_GPL(virq_to_hw);
+
#ifdef CONFIG_MULTI_IRQ_HANDLER
void __init set_handle_irq(void (*handle_irq)(struct pt_regs *))
{
diff --git a/drivers/soc/qe/Kconfig b/drivers/soc/qe/Kconfig
index 49118e1..43b984b 100644
--- a/drivers/soc/qe/Kconfig
+++ b/drivers/soc/qe/Kconfig
@@ -4,7 +4,6 @@
config QUICC_ENGINE
bool "Freescale QUICC Engine (QE) Support"
- depends on FSL_SOC && (PPC32 || PPC64)
select LIB_RHEAP
select CRC32
---help---
diff --git a/drivers/soc/qe/qe.c b/drivers/soc/qe/qe.c
index e0926f5..2aaa5b2 100644
--- a/drivers/soc/qe/qe.c
+++ b/drivers/soc/qe/qe.c
@@ -74,8 +74,8 @@ static phys_addr_t qebase = -1;
phys_addr_t get_qe_base(void)
{
struct device_node *qe;
- int size;
- const u32 *prop;
+ int ret;
+ struct resource res;
if (qebase != -1)
return qebase;
@@ -87,9 +87,9 @@ phys_addr_t get_qe_base(void)
return qebase;
}
- prop = of_get_property(qe, "reg", &size);
- if (prop && size >= sizeof(*prop))
- qebase = of_translate_address(qe, prop);
+ ret = of_address_to_resource(qe, 0, &res);
+ if (!ret)
+ qebase = res.start;
of_node_put(qe);
return qebase;
@@ -121,7 +121,7 @@ int qe_issue_cmd(u32 cmd, u32 device, u8 mcn_protocol, u32 cmd_input)
spin_lock_irqsave(&qe_lock, flags);
if (cmd == QE_RESET) {
- out_be32(&qe_immr->cp.cecr, (u32) (cmd | QE_CR_FLG));
+ iowrite32be((u32) (cmd | QE_CR_FLG), &qe_immr->cp.cecr);
} else {
if (cmd == QE_ASSIGN_PAGE) {
/* Here device is the SNUM, not sub-block */
@@ -138,15 +138,14 @@ int qe_issue_cmd(u32 cmd, u32 device, u8 mcn_protocol, u32 cmd_input)
mcn_shift = QE_CR_MCN_NORMAL_SHIFT;
}
- out_be32(&qe_immr->cp.cecdr, cmd_input);
- out_be32(&qe_immr->cp.cecr,
- (cmd | QE_CR_FLG | ((u32) device << dev_shift) | (u32)
- mcn_protocol << mcn_shift));
+ iowrite32be(cmd_input, &qe_immr->cp.cecdr);
+ iowrite32be((cmd | QE_CR_FLG | ((u32) device << dev_shift) |
+ (u32)mcn_protocol << mcn_shift), &qe_immr->cp.cecr);
}
/* wait for the QE_CR_FLG to clear */
- ret = spin_event_timeout((in_be32(&qe_immr->cp.cecr) & QE_CR_FLG) == 0,
- 100, 0);
+ ret = spin_event_timeout((ioread32be(&qe_immr->cp.cecr)
+ & QE_CR_FLG) == 0, 100, 0);
/* On timeout (e.g. failure), the expression will be false (ret == 0),
otherwise it will be true (ret == 1). */
spin_unlock_irqrestore(&qe_lock, flags);
@@ -170,8 +169,8 @@ static unsigned int brg_clk;
unsigned int qe_get_brg_clk(void)
{
struct device_node *qe;
- int size;
- const u32 *prop;
+ u32 val;
+ int ret;
if (brg_clk)
return brg_clk;
@@ -183,9 +182,9 @@ unsigned int qe_get_brg_clk(void)
return brg_clk;
}
- prop = of_get_property(qe, "brg-frequency", &size);
- if (prop && size == sizeof(*prop))
- brg_clk = *prop;
+ ret = of_property_read_u32_index(qe, "brg-frequency", 0, &val);
+ if (!ret)
+ brg_clk = val;
of_node_put(qe);
@@ -225,7 +224,7 @@ int qe_setbrg(enum qe_clock brg, unsigned int rate, unsigned int multiplier)
tempval = ((divisor - 1) << QE_BRGC_DIVISOR_SHIFT) |
QE_BRGC_ENABLE | div16;
- out_be32(&qe_immr->brg.brgc[brg - QE_BRG1], tempval);
+ iowrite32be(tempval, &qe_immr->brg.brgc[brg - QE_BRG1]);
return 0;
}
@@ -365,9 +364,9 @@ static int qe_sdma_init(void)
return -ENOMEM;
}
- out_be32(&sdma->sdebcr, (u32) sdma_buf_offset & QE_SDEBCR_BA_MASK);
- out_be32(&sdma->sdmr, (QE_SDMR_GLB_1_MSK |
- (0x1 << QE_SDMR_CEN_SHIFT)));
+ iowrite32be((u32) sdma_buf_offset & QE_SDEBCR_BA_MASK, &sdma->sdebcr);
+ iowrite32be((QE_SDMR_GLB_1_MSK | (0x1 << QE_SDMR_CEN_SHIFT)),
+ &sdma->sdmr);
return 0;
}
@@ -403,14 +402,14 @@ static void qe_upload_microcode(const void *base,
pr_info("qe-FM: uploading microcode '%s'\n", ucode->id);
/* Use auto-increment */
- out_be32(&qe_immr->iram.iadd, be32_to_cpu(ucode->iram_offset) |
- QE_IRAM_IADD_AIE | QE_IRAM_IADD_BADDR);
+ iowrite32be(be32_to_cpu(ucode->iram_offset) | QE_IRAM_IADD_AIE |
+ QE_IRAM_IADD_BADDR, &qe_immr->iram.iadd);
for (i = 0; i < be32_to_cpu(ucode->count); i++)
- out_be32(&qe_immr->iram.idata, be32_to_cpu(code[i]));
+ iowrite32be(be32_to_cpu(code[i]), &qe_immr->iram.idata);
/* Set I-RAM Ready Register */
- out_be32(&qe_immr->iram.iready, be32_to_cpu(QE_IRAM_READY));
+ iowrite32be(be32_to_cpu(QE_IRAM_READY), &qe_immr->iram.iready);
}
/*
@@ -528,11 +527,11 @@ int qe_upload_firmware(const struct qe_firmware *firmware)
u32 trap = be32_to_cpu(ucode->traps[j]);
if (trap)
- out_be32(&qe_immr->rsp[i].tibcr[j], trap);
+ iowrite32be(trap, &qe_immr->rsp[i].tibcr[j]);
}
/* Enable traps */
- out_be32(&qe_immr->rsp[i].eccr, be32_to_cpu(ucode->eccr));
+ iowrite32be(be32_to_cpu(ucode->eccr), &qe_immr->rsp[i].eccr);
}
qe_firmware_uploaded = 1;
@@ -651,9 +650,9 @@ EXPORT_SYMBOL(qe_get_num_of_risc);
unsigned int qe_get_num_of_snums(void)
{
struct device_node *qe;
- int size;
unsigned int num_of_snums;
- const u32 *prop;
+ u32 val;
+ int ret;
num_of_snums = 28; /* The default number of snum for threads is 28 */
qe = of_find_compatible_node(NULL, NULL, "fsl,qe");
@@ -667,9 +666,9 @@ unsigned int qe_get_num_of_snums(void)
return num_of_snums;
}
- prop = of_get_property(qe, "fsl,qe-num-snums", &size);
- if (prop && size == sizeof(*prop)) {
- num_of_snums = *prop;
+ ret = of_property_read_u32_index(qe, "fsl,qe-num-snums", 0, &val);
+ if (!ret) {
+ num_of_snums = val;
if ((num_of_snums < 28) || (num_of_snums > QE_NUM_OF_SNUM)) {
/* No QE ever has fewer than 28 SNUMs */
pr_err("QE: number of snum is invalid\n");
diff --git a/drivers/soc/qe/qe_common.c b/drivers/soc/qe/qe_common.c
index e7fdd02..1c7afbb 100644
--- a/drivers/soc/qe/qe_common.c
+++ b/drivers/soc/qe/qe_common.c
@@ -68,7 +68,7 @@ int qe_muram_init(void)
}
}
- muram_pbase = of_translate_address(np, zero);
+ muram_pbase = (phys_addr_t)of_translate_address(np, zero);
if (muram_pbase == (phys_addr_t)OF_BAD_ADDR) {
pr_err("Cannot translate zero through CPM muram node");
ret = -ENODEV;
diff --git a/drivers/soc/qe/qe_ic.c b/drivers/soc/qe/qe_ic.c
index 1968f22..cc1b8d5 100644
--- a/drivers/soc/qe/qe_ic.c
+++ b/drivers/soc/qe/qe_ic.c
@@ -16,7 +16,10 @@
#include <linux/kernel.h>
#include <linux/init.h>
+#include <linux/irqdomain.h>
#include <linux/errno.h>
+#include <linux/of_address.h>
+#include <linux/of_irq.h>
#include <linux/reboot.h>
#include <linux/slab.h>
#include <linux/stddef.h>
@@ -177,13 +180,13 @@ static struct qe_ic_info qe_ic_info[] = {
static inline u32 qe_ic_read(__be32 __iomem *base, unsigned int reg)
{
- return in_be32(base + (reg >> 2));
+ return ioread32be(base + (reg >> 2));
}
static inline void qe_ic_write(__be32 __iomem *base, unsigned int reg,
u32 value)
{
- out_be32(base + (reg >> 2), value);
+ iowrite32be(value, base + (reg >> 2));
}
static inline struct qe_ic *qe_ic_from_irq(unsigned int virq)
diff --git a/drivers/soc/qe/qe_io.c b/drivers/soc/qe/qe_io.c
index 939e903..7f40d3c 100644
--- a/drivers/soc/qe/qe_io.c
+++ b/drivers/soc/qe/qe_io.c
@@ -24,7 +24,6 @@
#include <linux/io.h>
#include <linux/fsl/qe.h>
#include <asm/prom.h>
-#include <sysdev/fsl_soc.h>
#undef DEBUG
@@ -62,16 +61,16 @@ void __par_io_config_pin(struct qe_pio_regs __iomem *par_io, u8 pin, int dir,
pin_mask1bit = (u32) (1 << (QE_PIO_PINS - (pin + 1)));
/* Set open drain, if required */
- tmp_val = in_be32(&par_io->cpodr);
+ tmp_val = ioread32be(&par_io->cpodr);
if (open_drain)
- out_be32(&par_io->cpodr, pin_mask1bit | tmp_val);
+ iowrite32be(pin_mask1bit | tmp_val, &par_io->cpodr);
else
- out_be32(&par_io->cpodr, ~pin_mask1bit & tmp_val);
+ iowrite32be(~pin_mask1bit & tmp_val, &par_io->cpodr);
/* define direction */
tmp_val = (pin > (QE_PIO_PINS / 2) - 1) ?
- in_be32(&par_io->cpdir2) :
- in_be32(&par_io->cpdir1);
+ ioread32be(&par_io->cpdir2) :
+ ioread32be(&par_io->cpdir1);
/* get all bits mask for 2 bit per port */
pin_mask2bits = (u32) (0x3 << (QE_PIO_PINS -
@@ -83,34 +82,30 @@ void __par_io_config_pin(struct qe_pio_regs __iomem *par_io, u8 pin, int dir,
/* clear and set 2 bits mask */
if (pin > (QE_PIO_PINS / 2) - 1) {
- out_be32(&par_io->cpdir2,
- ~pin_mask2bits & tmp_val);
+ iowrite32be(~pin_mask2bits & tmp_val, &par_io->cpdir2);
tmp_val &= ~pin_mask2bits;
- out_be32(&par_io->cpdir2, new_mask2bits | tmp_val);
+ iowrite32be(new_mask2bits | tmp_val, &par_io->cpdir2);
} else {
- out_be32(&par_io->cpdir1,
- ~pin_mask2bits & tmp_val);
+ iowrite32be(~pin_mask2bits & tmp_val, &par_io->cpdir1);
tmp_val &= ~pin_mask2bits;
- out_be32(&par_io->cpdir1, new_mask2bits | tmp_val);
+ iowrite32be(new_mask2bits | tmp_val, &par_io->cpdir1);
}
/* define pin assignment */
tmp_val = (pin > (QE_PIO_PINS / 2) - 1) ?
- in_be32(&par_io->cppar2) :
- in_be32(&par_io->cppar1);
+ ioread32be(&par_io->cppar2) :
+ ioread32be(&par_io->cppar1);
new_mask2bits = (u32) (assignment << (QE_PIO_PINS -
(pin % (QE_PIO_PINS / 2) + 1) * 2));
/* clear and set 2 bits mask */
if (pin > (QE_PIO_PINS / 2) - 1) {
- out_be32(&par_io->cppar2,
- ~pin_mask2bits & tmp_val);
+ iowrite32be(~pin_mask2bits & tmp_val, &par_io->cppar2);
tmp_val &= ~pin_mask2bits;
- out_be32(&par_io->cppar2, new_mask2bits | tmp_val);
+ iowrite32be(new_mask2bits | tmp_val, &par_io->cppar2);
} else {
- out_be32(&par_io->cppar1,
- ~pin_mask2bits & tmp_val);
+ iowrite32be(~pin_mask2bits & tmp_val, &par_io->cppar1);
tmp_val &= ~pin_mask2bits;
- out_be32(&par_io->cppar1, new_mask2bits | tmp_val);
+ iowrite32be(new_mask2bits | tmp_val, &par_io->cppar1);
}
}
EXPORT_SYMBOL(__par_io_config_pin);
@@ -138,12 +133,12 @@ int par_io_data_set(u8 port, u8 pin, u8 val)
/* calculate pin location */
pin_mask = (u32) (1 << (QE_PIO_PINS - 1 - pin));
- tmp_val = in_be32(&par_io[port].cpdata);
+ tmp_val = ioread32be(&par_io[port].cpdata);
if (val == 0) /* clear */
- out_be32(&par_io[port].cpdata, ~pin_mask & tmp_val);
+ iowrite32be(~pin_mask & tmp_val, &par_io[port].cpdata);
else /* set */
- out_be32(&par_io[port].cpdata, pin_mask | tmp_val);
+ iowrite32be(pin_mask | tmp_val, &par_io[port].cpdata);
return 0;
}
@@ -200,17 +195,17 @@ static void dump_par_io(void)
pr_info("%s: par_io=%p\n", __func__, par_io);
for (i = 0; i < num_par_io_ports; i++) {
pr_info(" cpodr[%u]=%08x\n", i,
- in_be32(&par_io[i].cpodr));
+ ioread32be(&par_io[i].cpodr));
pr_info(" cpdata[%u]=%08x\n", i,
- in_be32(&par_io[i].cpdata));
+ ioread32be(&par_io[i].cpdata));
pr_info(" cpdir1[%u]=%08x\n", i,
- in_be32(&par_io[i].cpdir1));
+ ioread32be(&par_io[i].cpdir1));
pr_info(" cpdir2[%u]=%08x\n", i,
- in_be32(&par_io[i].cpdir2));
+ ioread32be(&par_io[i].cpdir2));
pr_info(" cppar1[%u]=%08x\n", i,
- in_be32(&par_io[i].cppar1));
+ ioread32be(&par_io[i].cppar1));
pr_info(" cppar2[%u]=%08x\n", i,
- in_be32(&par_io[i].cppar2));
+ ioread32be(&par_io[i].cppar2));
}
}
EXPORT_SYMBOL(dump_par_io);
diff --git a/drivers/soc/qe/ucc_slow.c b/drivers/soc/qe/ucc_slow.c
index d023f19..edb1b2e 100644
--- a/drivers/soc/qe/ucc_slow.c
+++ b/drivers/soc/qe/ucc_slow.c
@@ -46,7 +46,7 @@ EXPORT_SYMBOL(ucc_slow_get_qe_cr_subblock);
void ucc_slow_poll_transmitter_now(struct ucc_slow_private *uccs)
{
- out_be16(&uccs->us_regs->utodr, UCC_SLOW_TOD);
+ iowrite16be(UCC_SLOW_TOD, &uccs->us_regs->utodr);
}
void ucc_slow_graceful_stop_tx(struct ucc_slow_private *uccs)
@@ -88,7 +88,7 @@ void ucc_slow_enable(struct ucc_slow_private *uccs, enum comm_dir mode)
us_regs = uccs->us_regs;
/* Enable reception and/or transmission on this UCC. */
- gumr_l = in_be32(&us_regs->gumr_l);
+ gumr_l = ioread32be(&us_regs->gumr_l);
if (mode & COMM_DIR_TX) {
gumr_l |= UCC_SLOW_GUMR_L_ENT;
uccs->enabled_tx = 1;
@@ -97,7 +97,7 @@ void ucc_slow_enable(struct ucc_slow_private *uccs, enum comm_dir mode)
gumr_l |= UCC_SLOW_GUMR_L_ENR;
uccs->enabled_rx = 1;
}
- out_be32(&us_regs->gumr_l, gumr_l);
+ iowrite32be(gumr_l, &us_regs->gumr_l);
}
EXPORT_SYMBOL(ucc_slow_enable);
@@ -109,7 +109,7 @@ void ucc_slow_disable(struct ucc_slow_private *uccs, enum comm_dir mode)
us_regs = uccs->us_regs;
/* Disable reception and/or transmission on this UCC. */
- gumr_l = in_be32(&us_regs->gumr_l);
+ gumr_l = ioread32be(&us_regs->gumr_l);
if (mode & COMM_DIR_TX) {
gumr_l &= ~UCC_SLOW_GUMR_L_ENT;
uccs->enabled_tx = 0;
@@ -118,7 +118,7 @@ void ucc_slow_disable(struct ucc_slow_private *uccs, enum comm_dir mode)
gumr_l &= ~UCC_SLOW_GUMR_L_ENR;
uccs->enabled_rx = 0;
}
- out_be32(&us_regs->gumr_l, gumr_l);
+ iowrite32be(gumr_l, &us_regs->gumr_l);
}
EXPORT_SYMBOL(ucc_slow_disable);
@@ -209,7 +209,7 @@ int ucc_slow_init(struct ucc_slow_info *us_info,
return ret;
}
- out_be16(&uccs->us_pram->mrblr, us_info->max_rx_buf_length);
+ iowrite16be(us_info->max_rx_buf_length, &uccs->us_pram->mrblr);
INIT_LIST_HEAD(&uccs->confQ);
@@ -239,27 +239,27 @@ int ucc_slow_init(struct ucc_slow_info *us_info,
bd = uccs->confBd = uccs->tx_bd = qe_muram_addr(uccs->tx_base_offset);
for (i = 0; i < us_info->tx_bd_ring_len - 1; i++) {
/* clear bd buffer */
- out_be32(&bd->buf, 0);
+ iowrite32be(0, &bd->buf);
/* set bd status and length */
- out_be32((u32 *) bd, 0);
+ iowrite32be(0, (u32 *) bd);
bd++;
}
/* for last BD set Wrap bit */
- out_be32(&bd->buf, 0);
- out_be32((u32 *) bd, cpu_to_be32(T_W));
+ iowrite32be(0, &bd->buf);
+ iowrite32be(T_W, (u32 *) bd);
/* Init Rx bds */
bd = uccs->rx_bd = qe_muram_addr(uccs->rx_base_offset);
for (i = 0; i < us_info->rx_bd_ring_len - 1; i++) {
/* set bd status and length */
- out_be32((u32 *)bd, 0);
+ iowrite32be(0, (u32 *)bd);
/* clear bd buffer */
- out_be32(&bd->buf, 0);
+ iowrite32be(0, &bd->buf);
bd++;
}
/* for last BD set Wrap bit */
- out_be32((u32 *)bd, cpu_to_be32(R_W));
- out_be32(&bd->buf, 0);
+ iowrite32be(R_W, (u32 *)bd);
+ iowrite32be(0, &bd->buf);
/* Set GUMR (For more details see the hardware spec.). */
/* gumr_h */
@@ -280,7 +280,7 @@ int ucc_slow_init(struct ucc_slow_info *us_info,
gumr |= UCC_SLOW_GUMR_H_TXSY;
if (us_info->rtsm)
gumr |= UCC_SLOW_GUMR_H_RTSM;
- out_be32(&us_regs->gumr_h, gumr);
+ iowrite32be(gumr, &us_regs->gumr_h);
/* gumr_l */
gumr = us_info->tdcr | us_info->rdcr | us_info->tenc | us_info->renc |
@@ -293,7 +293,7 @@ int ucc_slow_init(struct ucc_slow_info *us_info,
gumr |= UCC_SLOW_GUMR_L_TINV;
if (us_info->tend)
gumr |= UCC_SLOW_GUMR_L_TEND;
- out_be32(&us_regs->gumr_l, gumr);
+ iowrite32be(gumr, &us_regs->gumr_l);
/* Function code registers */
@@ -303,8 +303,8 @@ int ucc_slow_init(struct ucc_slow_info *us_info,
uccs->us_pram->rbmr = UCC_BMR_BO_BE;
/* rbase, tbase are offsets from MURAM base */
- out_be16(&uccs->us_pram->rbase, uccs->rx_base_offset);
- out_be16(&uccs->us_pram->tbase, uccs->tx_base_offset);
+ iowrite16be(uccs->rx_base_offset, &uccs->us_pram->rbase);
+ iowrite16be(uccs->tx_base_offset, &uccs->us_pram->tbase);
/* Mux clocking */
/* Grant Support */
@@ -334,14 +334,14 @@ int ucc_slow_init(struct ucc_slow_info *us_info,
}
/* Set interrupt mask register at UCC level. */
- out_be16(&us_regs->uccm, us_info->uccm_mask);
+ iowrite16be(us_info->uccm_mask, &us_regs->uccm);
/* First, clear anything pending at UCC level,
* otherwise, old garbage may come through
* as soon as the dam is opened. */
/* Writing '1' clears */
- out_be16(&us_regs->ucce, 0xffff);
+ iowrite16be(0xffff, &us_regs->ucce);
/* Issue QE Init command */
if (us_info->init_tx && us_info->init_rx)
diff --git a/drivers/tty/serial/ucc_uart.c b/drivers/tty/serial/ucc_uart.c
index 4718ebe..2c9a87c 100644
--- a/drivers/tty/serial/ucc_uart.c
+++ b/drivers/tty/serial/ucc_uart.c
@@ -26,13 +26,13 @@
#include <linux/tty_flip.h>
#include <linux/io.h>
#include <linux/of_platform.h>
+#include <linux/of_irq.h>
#include <linux/dma-mapping.h>
#include <linux/fs_uart_pd.h>
#include <linux/fsl/ucc_slow.h>
#include <linux/firmware.h>
-#include <asm/reg.h>
/*
* The GUMR flag for Soft UART. This would normally be defined in qe.h,
@@ -257,11 +257,11 @@ static unsigned int qe_uart_tx_empty(struct uart_port *port)
struct qe_bd *bdp = qe_port->tx_bd_base;
while (1) {
- if (in_be16(&bdp->status) & BD_SC_READY)
+ if (ioread16be(&bdp->status) & BD_SC_READY)
/* This BD is not done, so return "not done" */
return 0;
- if (in_be16(&bdp->status) & BD_SC_WRAP)
+ if (ioread16be(&bdp->status) & BD_SC_WRAP)
/*
* This BD is done and it's the last one, so return
* "done"
@@ -339,13 +339,13 @@ static int qe_uart_tx_pump(struct uart_qe_port *qe_port)
/* Pick next descriptor and fill from buffer */
bdp = qe_port->tx_cur;
- p = qe2cpu_addr(bdp->buf, qe_port);
+ p = qe2cpu_addr(be32_to_cpu(bdp->buf), qe_port);
*p++ = port->x_char;
- out_be16(&bdp->length, 1);
+ iowrite16be(1, &bdp->length);
setbits16(&bdp->status, BD_SC_READY);
/* Get next BD. */
- if (in_be16(&bdp->status) & BD_SC_WRAP)
+ if (ioread16be(&bdp->status) & BD_SC_WRAP)
bdp = qe_port->tx_bd_base;
else
bdp++;
@@ -364,10 +364,10 @@ static int qe_uart_tx_pump(struct uart_qe_port *qe_port)
/* Pick next descriptor and fill from buffer */
bdp = qe_port->tx_cur;
- while (!(in_be16(&bdp->status) & BD_SC_READY) &&
+ while (!(ioread16be(&bdp->status) & BD_SC_READY) &&
(xmit->tail != xmit->head)) {
count = 0;
- p = qe2cpu_addr(bdp->buf, qe_port);
+ p = qe2cpu_addr(be32_to_cpu(bdp->buf), qe_port);
while (count < qe_port->tx_fifosize) {
*p++ = xmit->buf[xmit->tail];
xmit->tail = (xmit->tail + 1) & (UART_XMIT_SIZE - 1);
@@ -377,11 +377,11 @@ static int qe_uart_tx_pump(struct uart_qe_port *qe_port)
break;
}
- out_be16(&bdp->length, count);
+ iowrite16be(count, &bdp->length);
setbits16(&bdp->status, BD_SC_READY);
/* Get next BD. */
- if (in_be16(&bdp->status) & BD_SC_WRAP)
+ if (ioread16be(&bdp->status) & BD_SC_WRAP)
bdp = qe_port->tx_bd_base;
else
bdp++;
@@ -414,7 +414,7 @@ static void qe_uart_start_tx(struct uart_port *port)
container_of(port, struct uart_qe_port, port);
/* If we currently are transmitting, then just return */
- if (in_be16(&qe_port->uccp->uccm) & UCC_UART_UCCE_TX)
+ if (ioread16be(&qe_port->uccp->uccm) & UCC_UART_UCCE_TX)
return;
/* Otherwise, pump the port and start transmission */
@@ -479,14 +479,14 @@ static void qe_uart_int_rx(struct uart_qe_port *qe_port)
*/
bdp = qe_port->rx_cur;
while (1) {
- status = in_be16(&bdp->status);
+ status = ioread16be(&bdp->status);
/* If this one is empty, then we assume we've read them all */
if (status & BD_SC_EMPTY)
break;
/* get number of characters, and check space in RX buffer */
- i = in_be16(&bdp->length);
+ i = ioread16be(&bdp->length);
/* If we don't have enough room in RX buffer for the entire BD,
* then we try later, which will be the next RX interrupt.
@@ -497,7 +497,7 @@ static void qe_uart_int_rx(struct uart_qe_port *qe_port)
}
/* get pointer */
- cp = qe2cpu_addr(bdp->buf, qe_port);
+ cp = qe2cpu_addr(be32_to_cpu(bdp->buf), qe_port);
/* loop through the buffer */
while (i-- > 0) {
@@ -519,7 +519,7 @@ error_return:
/* This BD is ready to be used again. Clear status. get next */
clrsetbits_be16(&bdp->status, BD_SC_BR | BD_SC_FR | BD_SC_PR |
BD_SC_OV | BD_SC_ID, BD_SC_EMPTY);
- if (in_be16(&bdp->status) & BD_SC_WRAP)
+ if (ioread16be(&bdp->status) & BD_SC_WRAP)
bdp = qe_port->rx_bd_base;
else
bdp++;
@@ -578,8 +578,8 @@ static irqreturn_t qe_uart_int(int irq, void *data)
u16 events;
/* Clear the interrupts */
- events = in_be16(&uccp->ucce);
- out_be16(&uccp->ucce, events);
+ events = ioread16be(&uccp->ucce);
+ iowrite16be(events, &uccp->ucce);
if (events & UCC_UART_UCCE_BRKE)
uart_handle_break(&qe_port->port);
@@ -610,17 +610,17 @@ static void qe_uart_initbd(struct uart_qe_port *qe_port)
bdp = qe_port->rx_bd_base;
qe_port->rx_cur = qe_port->rx_bd_base;
for (i = 0; i < (qe_port->rx_nrfifos - 1); i++) {
- out_be16(&bdp->status, BD_SC_EMPTY | BD_SC_INTRPT);
- out_be32(&bdp->buf, cpu2qe_addr(bd_virt, qe_port));
- out_be16(&bdp->length, 0);
+ iowrite16be(BD_SC_EMPTY | BD_SC_INTRPT, &bdp->status);
+ iowrite32be(cpu2qe_addr(bd_virt, qe_port), &bdp->buf);
+ iowrite16be(0, &bdp->length);
bd_virt += qe_port->rx_fifosize;
bdp++;
}
/* */
- out_be16(&bdp->status, BD_SC_WRAP | BD_SC_EMPTY | BD_SC_INTRPT);
- out_be32(&bdp->buf, cpu2qe_addr(bd_virt, qe_port));
- out_be16(&bdp->length, 0);
+ iowrite16be(BD_SC_WRAP | BD_SC_EMPTY | BD_SC_INTRPT, &bdp->status);
+ iowrite32be(cpu2qe_addr(bd_virt, qe_port), &bdp->buf);
+ iowrite16be(0, &bdp->length);
/* Set the physical address of the host memory
* buffers in the buffer descriptors, and the
@@ -631,9 +631,9 @@ static void qe_uart_initbd(struct uart_qe_port *qe_port)
qe_port->tx_cur = qe_port->tx_bd_base;
bdp = qe_port->tx_bd_base;
for (i = 0; i < (qe_port->tx_nrfifos - 1); i++) {
- out_be16(&bdp->status, BD_SC_INTRPT);
- out_be32(&bdp->buf, cpu2qe_addr(bd_virt, qe_port));
- out_be16(&bdp->length, 0);
+ iowrite16be(BD_SC_INTRPT, &bdp->status);
+ iowrite32be(cpu2qe_addr(bd_virt, qe_port), &bdp->buf);
+ iowrite16be(0, &bdp->length);
bd_virt += qe_port->tx_fifosize;
bdp++;
}
@@ -643,9 +643,9 @@ static void qe_uart_initbd(struct uart_qe_port *qe_port)
setbits16(&qe_port->tx_cur->status, BD_SC_P);
#endif
- out_be16(&bdp->status, BD_SC_WRAP | BD_SC_INTRPT);
- out_be32(&bdp->buf, cpu2qe_addr(bd_virt, qe_port));
- out_be16(&bdp->length, 0);
+ iowrite16be(BD_SC_WRAP | BD_SC_INTRPT, &bdp->status);
+ iowrite32be(cpu2qe_addr(bd_virt, qe_port), &bdp->buf);
+ iowrite16be(0, &bdp->length);
}
/*
@@ -667,21 +667,21 @@ static void qe_uart_init_ucc(struct uart_qe_port *qe_port)
ucc_slow_disable(qe_port->us_private, COMM_DIR_RX_AND_TX);
/* Program the UCC UART parameter RAM */
- out_8(&uccup->common.rbmr, UCC_BMR_GBL | UCC_BMR_BO_BE);
- out_8(&uccup->common.tbmr, UCC_BMR_GBL | UCC_BMR_BO_BE);
- out_be16(&uccup->common.mrblr, qe_port->rx_fifosize);
- out_be16(&uccup->maxidl, 0x10);
- out_be16(&uccup->brkcr, 1);
- out_be16(&uccup->parec, 0);
- out_be16(&uccup->frmec, 0);
- out_be16(&uccup->nosec, 0);
- out_be16(&uccup->brkec, 0);
- out_be16(&uccup->uaddr[0], 0);
- out_be16(&uccup->uaddr[1], 0);
- out_be16(&uccup->toseq, 0);
+ iowrite8(UCC_BMR_GBL | UCC_BMR_BO_BE, &uccup->common.rbmr);
+ iowrite8(UCC_BMR_GBL | UCC_BMR_BO_BE, &uccup->common.tbmr);
+ iowrite16be(qe_port->rx_fifosize, &uccup->common.mrblr);
+ iowrite16be(0x10, &uccup->maxidl);
+ iowrite16be(1, &uccup->brkcr);
+ iowrite16be(0, &uccup->parec);
+ iowrite16be(0, &uccup->frmec);
+ iowrite16be(0, &uccup->nosec);
+ iowrite16be(0, &uccup->brkec);
+ iowrite16be(0, &uccup->uaddr[0]);
+ iowrite16be(0, &uccup->uaddr[1]);
+ iowrite16be(0, &uccup->toseq);
for (i = 0; i < 8; i++)
- out_be16(&uccup->cchars[i], 0xC000);
- out_be16(&uccup->rccm, 0xc0ff);
+ iowrite16be(0xC000, &uccup->cchars[i]);
+ iowrite16be(0xc0ff, &uccup->rccm);
/* Configure the GUMR registers for UART */
if (soft_uart) {
@@ -715,30 +715,30 @@ static void qe_uart_init_ucc(struct uart_qe_port *qe_port)
#endif
/* Disable rx interrupts and clear all pending events. */
- out_be16(&uccp->uccm, 0);
- out_be16(&uccp->ucce, 0xffff);
- out_be16(&uccp->udsr, 0x7e7e);
+ iowrite16be(0, &uccp->uccm);
+ iowrite16be(0xffff, &uccp->ucce);
+ iowrite16be(0x7e7e, &uccp->udsr);
/* Initialize UPSMR */
- out_be16(&uccp->upsmr, 0);
+ iowrite16be(0, &uccp->upsmr);
if (soft_uart) {
- out_be16(&uccup->supsmr, 0x30);
- out_be16(&uccup->res92, 0);
- out_be32(&uccup->rx_state, 0);
- out_be32(&uccup->rx_cnt, 0);
- out_8(&uccup->rx_bitmark, 0);
- out_8(&uccup->rx_length, 10);
- out_be32(&uccup->dump_ptr, 0x4000);
- out_8(&uccup->rx_temp_dlst_qe, 0);
- out_be32(&uccup->rx_frame_rem, 0);
- out_8(&uccup->rx_frame_rem_size, 0);
+ iowrite16be(0x30, &uccup->supsmr);
+ iowrite16be(0, &uccup->res92);
+ iowrite32be(0, &uccup->rx_state);
+ iowrite32be(0, &uccup->rx_cnt);
+ iowrite8(0, &uccup->rx_bitmark);
+ iowrite8(10, &uccup->rx_length);
+ iowrite32be(0x4000, &uccup->dump_ptr);
+ iowrite8(0, &uccup->rx_temp_dlst_qe);
+ iowrite32be(0, &uccup->rx_frame_rem);
+ iowrite8(0, &uccup->rx_frame_rem_size);
/* Soft-UART requires TX to be 1X */
- out_8(&uccup->tx_mode,
- UCC_UART_TX_STATE_UART | UCC_UART_TX_STATE_X1);
- out_be16(&uccup->tx_state, 0);
- out_8(&uccup->resD4, 0);
- out_be16(&uccup->resD5, 0);
+ iowrite8(UCC_UART_TX_STATE_UART | UCC_UART_TX_STATE_X1,
+ &uccup->tx_mode);
+ iowrite16be(0, &uccup->tx_state);
+ iowrite8(0, &uccup->resD4);
+ iowrite16be(0, &uccup->resD5);
/* Set UART mode.
* Enable receive and transmit.
@@ -866,9 +866,9 @@ static void qe_uart_set_termios(struct uart_port *port,
struct ucc_slow __iomem *uccp = qe_port->uccp;
unsigned int baud;
unsigned long flags;
- u16 upsmr = in_be16(&uccp->upsmr);
+ u16 upsmr = ioread16be(&uccp->upsmr);
struct ucc_uart_pram __iomem *uccup = qe_port->uccup;
- u16 supsmr = in_be16(&uccup->supsmr);
+ u16 supsmr = ioread16be(&uccup->supsmr);
u8 char_length = 2; /* 1 + CL + PEN + 1 + SL */
/* Character length programmed into the mode register is the
@@ -966,10 +966,10 @@ static void qe_uart_set_termios(struct uart_port *port,
/* Update the per-port timeout. */
uart_update_timeout(port, termios->c_cflag, baud);
- out_be16(&uccp->upsmr, upsmr);
+ iowrite16be(upsmr, &uccp->upsmr);
if (soft_uart) {
- out_be16(&uccup->supsmr, supsmr);
- out_8(&uccup->rx_length, char_length);
+ iowrite16be(supsmr, &uccup->supsmr);
+ iowrite8(char_length, &uccup->rx_length);
/* Soft-UART requires a 1X multiplier for TX */
qe_setbrg(qe_port->us_info.rx_clock, baud, 16);
@@ -1139,7 +1139,9 @@ static unsigned int soc_info(unsigned int *rev_h, unsigned int *rev_l)
{
struct device_node *np;
const char *soc_string;
+#ifdef CONFIG_PPC_85xx
unsigned int svr;
+#endif
unsigned int soc;
/* Find the CPU node */
@@ -1156,10 +1158,12 @@ static unsigned int soc_info(unsigned int *rev_h, unsigned int *rev_l)
if ((sscanf(soc_string, "PowerPC,%u", &soc) != 1) || !soc)
return 0;
+#ifdef CONFIG_PPC_85xx
/* Get the revision from the SVR */
svr = mfspr(SPRN_SVR);
*rev_h = (svr >> 4) & 0xf;
*rev_l = svr & 0xf;
+#endif
return soc;
}
@@ -1202,7 +1206,7 @@ static void uart_firmware_cont(const struct firmware *fw, void *context)
static int ucc_uart_probe(struct platform_device *ofdev)
{
struct device_node *np = ofdev->dev.of_node;
- const unsigned int *iprop; /* Integer OF properties */
+ u32 val;
const char *sprop; /* String OF properties */
struct uart_qe_port *qe_port = NULL;
struct resource res;
@@ -1285,10 +1289,10 @@ static int ucc_uart_probe(struct platform_device *ofdev)
/* Get the UCC number (device ID) */
/* UCCs are numbered 1-7 */
- iprop = of_get_property(np, "cell-index", NULL);
- if (!iprop) {
- iprop = of_get_property(np, "device-id", NULL);
- if (!iprop) {
+ ret = of_property_read_u32_index(np, "cell-index", 0, &val);
+ if (ret) {
+ ret = of_property_read_u32_index(np, "device-id", 0, &val);
+ if (ret) {
dev_err(&ofdev->dev, "UCC is unspecified in "
"device tree\n");
ret = -EINVAL;
@@ -1296,12 +1300,12 @@ static int ucc_uart_probe(struct platform_device *ofdev)
}
}
- if ((*iprop < 1) || (*iprop > UCC_MAX_NUM)) {
- dev_err(&ofdev->dev, "no support for UCC%u\n", *iprop);
+ if ((val < 1) || (val > UCC_MAX_NUM)) {
+ dev_err(&ofdev->dev, "no support for UCC%u\n", val);
ret = -ENODEV;
goto out_free;
}
- qe_port->ucc_num = *iprop - 1;
+ qe_port->ucc_num = val - 1;
/*
* In the future, we should not require the BRG to be specified in the
@@ -1345,13 +1349,13 @@ static int ucc_uart_probe(struct platform_device *ofdev)
}
/* Get the port number, numbered 0-3 */
- iprop = of_get_property(np, "port-number", NULL);
- if (!iprop) {
+ ret = of_property_read_u32_index(np, "port-number", 0, &val);
+ if (ret) {
dev_err(&ofdev->dev, "missing port-number in device tree\n");
ret = -EINVAL;
goto out_free;
}
- qe_port->port.line = *iprop;
+ qe_port->port.line = val;
if (qe_port->port.line >= UCC_MAX_UART) {
dev_err(&ofdev->dev, "port-number must be 0-%u\n",
UCC_MAX_UART - 1);
@@ -1381,31 +1385,31 @@ static int ucc_uart_probe(struct platform_device *ofdev)
}
}
- iprop = of_get_property(np, "brg-frequency", NULL);
- if (!iprop) {
+ ret = of_property_read_u32_index(np, "brg-frequency", 0, &val);
+ if (ret) {
dev_err(&ofdev->dev,
"missing brg-frequency in device tree\n");
ret = -EINVAL;
goto out_np;
}
- if (*iprop)
- qe_port->port.uartclk = *iprop;
+ if (val)
+ qe_port->port.uartclk = val;
else {
/*
* Older versions of U-Boot do not initialize the brg-frequency
* property, so in this case we assume the BRG frequency is
* half the QE bus frequency.
*/
- iprop = of_get_property(np, "bus-frequency", NULL);
- if (!iprop) {
+ ret = of_property_read_u32_index(np, "bus-frequency", 0, &val);
+ if (ret) {
dev_err(&ofdev->dev,
"missing QE bus-frequency in device tree\n");
ret = -EINVAL;
goto out_np;
}
- if (*iprop)
- qe_port->port.uartclk = *iprop / 2;
+ if (val)
+ qe_port->port.uartclk = val / 2;
else {
dev_err(&ofdev->dev,
"invalid QE bus-frequency in device tree\n");
diff --git a/include/linux/fsl/qe.h b/include/linux/fsl/qe.h
index 5a6a647..ef4422c 100644
--- a/include/linux/fsl/qe.h
+++ b/include/linux/fsl/qe.h
@@ -306,6 +306,27 @@ struct qe_bd {
#define BD_STATUS_MASK 0xffff0000
#define BD_LENGTH_MASK 0x0000ffff
+/* Buffer descriptor control/status used by serial
+ */
+
+#define BD_SC_EMPTY (0x8000) /* Receive is empty */
+#define BD_SC_READY (0x8000) /* Transmit is ready */
+#define BD_SC_WRAP (0x2000) /* Last buffer descriptor */
+#define BD_SC_INTRPT (0x1000) /* Interrupt on change */
+#define BD_SC_LAST (0x0800) /* Last buffer in frame */
+#define BD_SC_TC (0x0400) /* Transmit CRC */
+#define BD_SC_CM (0x0200) /* Continuous mode */
+#define BD_SC_ID (0x0100) /* Rec'd too many idles */
+#define BD_SC_P (0x0100) /* xmt preamble */
+#define BD_SC_BR (0x0020) /* Break received */
+#define BD_SC_FR (0x0010) /* Framing error */
+#define BD_SC_PR (0x0008) /* Parity error */
+#define BD_SC_NAK (0x0004) /* NAK - did not respond */
+#define BD_SC_OV (0x0002) /* Overrun */
+#define BD_SC_UN (0x0002) /* Underrun */
+#define BD_SC_CD (0x0001) /* */
+#define BD_SC_CL (0x0001) /* Collision */
+
/* Alignment */
#define QE_INTR_TABLE_ALIGN 16 /* ??? */
#define QE_ALIGNMENT_OF_BD 8
--
2.1.0.27.g96db324
--
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