diff options
Diffstat (limited to 'target/linux/brcm47xx/patches-3.0/0006-bcma-add-serial-console-support.patch')
| -rw-r--r-- | target/linux/brcm47xx/patches-3.0/0006-bcma-add-serial-console-support.patch | 166 |
1 files changed, 0 insertions, 166 deletions
diff --git a/target/linux/brcm47xx/patches-3.0/0006-bcma-add-serial-console-support.patch b/target/linux/brcm47xx/patches-3.0/0006-bcma-add-serial-console-support.patch deleted file mode 100644 index fd7b8ae78e..0000000000 --- a/target/linux/brcm47xx/patches-3.0/0006-bcma-add-serial-console-support.patch +++ /dev/null @@ -1,166 +0,0 @@ -From 4d58b9a14669e5ea0026f0d27257041aecfcbed3 Mon Sep 17 00:00:00 2001 -From: Hauke Mehrtens <hauke@hauke-m.de> -Date: Mon, 6 Jun 2011 00:07:33 +0200 -Subject: [PATCH 06/26] bcma: add serial console support - -This adds support for serial console to bcma, when operating on an SoC. - -Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de> ---- - drivers/bcma/bcma_private.h | 8 ++++ - drivers/bcma/driver_chipcommon.c | 48 +++++++++++++++++++++++++++ - drivers/bcma/driver_chipcommon_pmu.c | 26 ++++++++++++++ - drivers/bcma/driver_mips.c | 1 + - include/linux/bcma/bcma_driver_chipcommon.h | 14 ++++++++ - 5 files changed, 97 insertions(+), 0 deletions(-) - ---- a/drivers/bcma/bcma_private.h -+++ b/drivers/bcma/bcma_private.h -@@ -29,6 +29,14 @@ void bcma_init_bus(struct bcma_bus *bus) - /* sprom.c */ - int bcma_sprom_get(struct bcma_bus *bus); - -+/* driver_chipcommon.c */ -+#ifdef CONFIG_BCMA_DRIVER_MIPS -+void bcma_chipco_serial_init(struct bcma_drv_cc *cc); -+#endif /* CONFIG_BCMA_DRIVER_MIPS */ -+ -+/* driver_chipcommon_pmu.c */ -+u32 bcma_pmu_alp_clock(struct bcma_drv_cc *cc); -+ - #ifdef CONFIG_BCMA_HOST_PCI - /* host_pci.c */ - extern int __init bcma_host_pci_init(void); ---- a/drivers/bcma/driver_chipcommon.c -+++ b/drivers/bcma/driver_chipcommon.c -@@ -106,3 +106,51 @@ u32 bcma_chipco_gpio_polarity(struct bcm - { - return bcma_cc_write32_masked(cc, BCMA_CC_GPIOPOL, mask, value); - } -+ -+#ifdef CONFIG_BCMA_DRIVER_MIPS -+void bcma_chipco_serial_init(struct bcma_drv_cc *cc) -+{ -+ unsigned int irq; -+ u32 baud_base; -+ u32 i; -+ unsigned int ccrev = cc->core->id.rev; -+ struct bcma_serial_port *ports = cc->serial_ports; -+ -+ if (ccrev >= 11 && ccrev != 15) { -+ /* Fixed ALP clock */ -+ baud_base = bcma_pmu_alp_clock(cc); -+ if (ccrev >= 21) { -+ /* Turn off UART clock before switching clocksource. */ -+ bcma_cc_write32(cc, BCMA_CC_CORECTL, -+ bcma_cc_read32(cc, BCMA_CC_CORECTL) -+ & ~BCMA_CC_CORECTL_UARTCLKEN); -+ } -+ /* Set the override bit so we don't divide it */ -+ bcma_cc_write32(cc, BCMA_CC_CORECTL, -+ bcma_cc_read32(cc, BCMA_CC_CORECTL) -+ | BCMA_CC_CORECTL_UARTCLK0); -+ if (ccrev >= 21) { -+ /* Re-enable the UART clock. */ -+ bcma_cc_write32(cc, BCMA_CC_CORECTL, -+ bcma_cc_read32(cc, BCMA_CC_CORECTL) -+ | BCMA_CC_CORECTL_UARTCLKEN); -+ } -+ } else { -+ pr_err("serial not supported on this device ccrev: 0x%x\n", -+ ccrev); -+ return; -+ } -+ -+ irq = bcma_core_mips_irq(cc->core); -+ -+ /* Determine the registers of the UARTs */ -+ cc->nr_serial_ports = (cc->capabilities & BCMA_CC_CAP_NRUART); -+ for (i = 0; i < cc->nr_serial_ports; i++) { -+ ports[i].regs = cc->core->io_addr + BCMA_CC_UART0_DATA + -+ (i * 256); -+ ports[i].irq = irq; -+ ports[i].baud_base = baud_base; -+ ports[i].reg_shift = 0; -+ } -+} -+#endif /* CONFIG_BCMA_DRIVER_MIPS */ ---- a/drivers/bcma/driver_chipcommon_pmu.c -+++ b/drivers/bcma/driver_chipcommon_pmu.c -@@ -136,3 +136,29 @@ void bcma_pmu_init(struct bcma_drv_cc *c - bcma_pmu_swreg_init(cc); - bcma_pmu_workarounds(cc); - } -+ -+u32 bcma_pmu_alp_clock(struct bcma_drv_cc *cc) -+{ -+ struct bcma_bus *bus = cc->core->bus; -+ -+ switch (bus->chipinfo.id) { -+ case 0x4716: -+ case 0x4748: -+ case 47162: -+ case 0x4313: -+ case 0x5357: -+ case 0x4749: -+ case 53572: -+ /* always 20Mhz */ -+ return 20000 * 1000; -+ case 0x5356: -+ case 0x5300: -+ /* always 25Mhz */ -+ return 25000 * 1000; -+ default: -+ pr_warn("No ALP clock specified for %04X device, " -+ "pmu rev. %d, using default %d Hz\n", -+ bus->chipinfo.id, cc->pmu.rev, BCMA_CC_PMU_ALP_CLOCK); -+ } -+ return BCMA_CC_PMU_ALP_CLOCK; -+} ---- a/drivers/bcma/driver_mips.c -+++ b/drivers/bcma/driver_mips.c -@@ -238,6 +238,7 @@ void bcma_core_mips_init(struct bcma_drv - if (mcore->setup_done) - return; - -+ bcma_chipco_serial_init(&bus->drv_cc); - bcma_core_mips_flash_detect(mcore); - mcore->setup_done = true; - } ---- a/include/linux/bcma/bcma_driver_chipcommon.h -+++ b/include/linux/bcma/bcma_driver_chipcommon.h -@@ -241,6 +241,9 @@ - #define BCMA_CC_SPROM 0x0800 /* SPROM beginning */ - #define BCMA_CC_SPROM_PCIE6 0x0830 /* SPROM beginning on PCIe rev >= 6 */ - -+/* ALP clock on pre-PMU chips */ -+#define BCMA_CC_PMU_ALP_CLOCK 20000000 -+ - /* Data for the PMU, if available. - * Check availability with ((struct bcma_chipcommon)->capabilities & BCMA_CC_CAP_PMU) - */ -@@ -255,6 +258,14 @@ struct bcma_pflash { - u32 window; - u32 window_size; - }; -+ -+struct bcma_serial_port { -+ void *regs; -+ unsigned long clockspeed; -+ unsigned int irq; -+ unsigned int baud_base; -+ unsigned int reg_shift; -+}; - #endif /* CONFIG_BCMA_DRIVER_MIPS */ - - struct bcma_drv_cc { -@@ -268,6 +279,9 @@ struct bcma_drv_cc { - struct bcma_chipcommon_pmu pmu; - #ifdef CONFIG_BCMA_DRIVER_MIPS - struct bcma_pflash pflash; -+ -+ int nr_serial_ports; -+ struct bcma_serial_port serial_ports[4]; - #endif /* CONFIG_BCMA_DRIVER_MIPS */ - }; - |