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add extif fixes (#1984)

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SVN-Revision: 7756
This commit is contained in:
Felix Fietkau 2007-06-28 10:15:19 +00:00
parent 6a5f4ea179
commit 476c7769e5
1 changed files with 152 additions and 0 deletions
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152
target/linux/brcm47xx-2.6/patches-2.6.22/240-extif_fixes.patch Normal file
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@ -0,0 +1,152 @@
Index: linux-2.6.22-rc6/drivers/ssb/driver_mipscore.c
===================================================================
--- linux-2.6.22-rc6.orig/drivers/ssb/driver_mipscore.c 2007-06-28 11:35:29.077307472 +0200
+++ linux-2.6.22-rc6/drivers/ssb/driver_mipscore.c 2007-06-28 12:11:01.433140112 +0200
@@ -128,10 +128,46 @@
ssb_write32(mdev, SSB_IPSFLAG, irqflag);
}
-/* XXX: leave here or move into separate extif driver? */
+static inline bool serial_exists(u8 *regs)
+{
+ u8 save_mcr, status1 = 0;
+
+ if (regs) {
+ save_mcr = regs[UART_MCR];
+ regs[UART_MCR] = (UART_MCR_LOOP | 0x0a);
+ // Fixme UART_MSR_DSR appears in status1
+ status1 = regs[UART_MSR] & 0xd0;
+ regs[UART_MCR] = save_mcr;
+ }
+ return (status1 == (UART_MSR_DCD | UART_MSR_CTS));
+}
+
static int ssb_extif_serial_init(struct ssb_extif *dev, struct ssb_serial_port *ports)
{
- return 0;
+ u32 i, nr_ports = 0;
+
+ /* Disable GPIO interrupt initially */
+ extif_write32(dev, SSB_EXTIF_GPIO_INTPOL, 0);
+ extif_write32(dev, SSB_EXTIF_GPIO_INTMASK, 0);
+
+ for (i = 0; i < 2; i++) {
+ void __iomem *uart_regs;
+
+ uart_regs = ioremap_nocache(SSB_EUART, 16);
+ uart_regs += (i * 8);
+
+ if (serial_exists(uart_regs) && ports) {
+ extif_write32(dev, SSB_EXTIF_GPIO_INTMASK, 2);
+
+ nr_ports++;
+ ports[i].regs = uart_regs;
+ ports[i].irq = 2;
+ ports[i].baud_base = 13500000;
+ ports[i].reg_shift = 0;
+ }
+ iounmap(uart_regs);
+ }
+ return nr_ports;
}
@@ -139,40 +175,6 @@
{
struct ssb_bus *bus = mcore->dev->bus;
- //TODO if (EXTIF available
-#if 0
- extifregs_t *eir = (extifregs_t *) regs;
- sbconfig_t *sb;
-
- /* Determine external UART register base */
- sb = (sbconfig_t *)((ulong) eir + SBCONFIGOFF);
- base = EXTIF_CFGIF_BASE(sb_base(R_REG(&sb->sbadmatch1)));
-
- /* Determine IRQ */
- irq = sb_irq(sbh);
-
- /* Disable GPIO interrupt initially */
- W_REG(&eir->gpiointpolarity, 0);
- W_REG(&eir->gpiointmask, 0);
-
- /* Search for external UARTs */
- n = 2;
- for (i = 0; i < 2; i++) {
- regs = (void *) REG_MAP(base + (i * 8), 8);
- if (BCMINIT(serial_exists)(regs)) {
- /* Set GPIO 1 to be the external UART IRQ */
- W_REG(&eir->gpiointmask, 2);
- if (add)
- add(regs, irq, 13500000, 0);
- }
- }
-
- /* Add internal UART if enabled */
- if (R_REG(&eir->corecontrol) & CC_UE)
- if (add)
- add((void *) &eir->uartdata, irq, sb_clock(sbh), 2);
-
-#endif
if (bus->extif.dev)
mcore->nr_serial_ports = ssb_extif_serial_init(&bus->extif, mcore->serial_ports);
else if (bus->chipco.dev)
@@ -219,7 +221,7 @@
extif_write32(extif, SSB_EXTIF_PROG_WAITCNT, tmp);
}
-static inline void ssb_extif_get_clockcontrol(struct ssb_extif *extif,
+void ssb_extif_get_clockcontrol(struct ssb_extif *extif,
u32 *pll_type, u32 *n, u32 *m)
{
*pll_type = SSB_PLLTYPE_1;
Index: linux-2.6.22-rc6/drivers/ssb/main.c
===================================================================
--- linux-2.6.22-rc6.orig/drivers/ssb/main.c 2007-06-28 11:23:38.418344056 +0200
+++ linux-2.6.22-rc6/drivers/ssb/main.c 2007-06-28 12:07:50.346189744 +0200
@@ -774,12 +774,12 @@
u32 plltype;
u32 clkctl_n, clkctl_m;
- //TODO if EXTIF: PLLTYPE == 1, read n from clockcontrol_n, m from clockcontrol_sb
-
- if (bus->chipco.dev) {
+ if (bus->extif.dev)
+ ssb_extif_get_clockcontrol(&bus->extif, &plltype, &clkctl_n, &clkctl_m);
+ else if (bus->chipco.dev)
ssb_chipco_get_clockcontrol(&bus->chipco, &plltype,
&clkctl_n, &clkctl_m);
- } else
+ else
return 0;
if (bus->chip_id == 0x5365) {
Index: linux-2.6.22-rc6/include/linux/ssb/ssb_driver_extif.h
===================================================================
--- linux-2.6.22-rc6.orig/include/linux/ssb/ssb_driver_extif.h 2007-06-28 11:27:47.099538768 +0200
+++ linux-2.6.22-rc6/include/linux/ssb/ssb_driver_extif.h 2007-06-28 11:28:03.482048248 +0200
@@ -158,6 +158,8 @@
/* watchdog */
#define SSB_EXTIF_WATCHDOG_CLK 48000000 /* Hz */
+extern void ssb_extif_get_clockcontrol(struct ssb_extif *, u32 *, u32 *, u32 *);
+
/* GPIO functions */
static inline u32 ssb_extif_gpio_in(struct ssb_extif *extif,
u32 mask)
Index: linux-2.6.22-rc6/include/linux/ssb/ssb_regs.h
===================================================================
--- linux-2.6.22-rc6.orig/include/linux/ssb/ssb_regs.h 2007-06-28 12:09:24.943808720 +0200
+++ linux-2.6.22-rc6/include/linux/ssb/ssb_regs.h 2007-06-28 12:09:34.606339792 +0200
@@ -24,8 +24,8 @@
#define SSB_PCI_DMA_SZ 0x40000000 /* Client Mode sb2pcitranslation2 size in bytes */
#define SSB_PCIE_DMA_L32 0x00000000 /* PCIE Client Mode sb2pcitranslation2 (2 ZettaBytes), low 32 bits */
#define SSB_PCIE_DMA_H32 0x80000000 /* PCIE Client Mode sb2pcitranslation2 (2 ZettaBytes), high 32 bits */
-#define SSB_EUART (SB_EXTIF_BASE + 0x00800000)
-#define SSB_LED (SB_EXTIF_BASE + 0x00900000)
+#define SSB_EUART (SSB_EXTIF_BASE + 0x00800000)
+#define SSB_LED (SSB_EXTIF_BASE + 0x00900000)
/* Enumeration space constants */