From 520f7bd73354f003a9a59937b28e4903d985c420 Mon Sep 17 00:00:00 2001 From: Rob Herring Date: Thu, 27 Dec 2012 13:10:24 -0600 Subject: irqchip: Move ARM gic.h to include/linux/irqchip/arm-gic.h Now that we have GIC moved to drivers/irqchip and all GIC DT init for platforms using irqchip_init, move gic.h and update the remaining includes. Signed-off-by: Rob Herring Cc: Thomas Gleixner Cc: Russell King Cc: Anton Vorontsov Cc: Kukjin Kim Cc: Sascha Hauer Cc: David Brown Cc: Daniel Walker Cc: Bryan Huntsman Cc: Tony Lindgren Cc: Paul Mundt Cc: Magnus Damm Cc: Viresh Kumar Cc: Shiraz Hashim Cc: Stephen Warren Cc: Srinidhi Kasagar Cc: Linus Walleij Cc: Samuel Ortiz --- drivers/mfd/db8500-prcmu.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/mfd') diff --git a/drivers/mfd/db8500-prcmu.c b/drivers/mfd/db8500-prcmu.c index dc8826d8d69d..13f4ccf2612d 100644 --- a/drivers/mfd/db8500-prcmu.c +++ b/drivers/mfd/db8500-prcmu.c @@ -26,13 +26,13 @@ #include #include #include +#include #include #include #include #include #include #include -#include #include #include #include -- cgit v1.2.3 From 7a4f26097d389c16c9956bc03b81532698d97d64 Mon Sep 17 00:00:00 2001 From: Linus Walleij Date: Wed, 19 Sep 2012 19:31:19 +0200 Subject: ARM: ux500: de-globalize This removes the file from the global kernel include scope, making it a pure mach-ux500 detail. All ASIC specifics needed by drivers shall henceforth be passed from either platform data or the device tree. Cc: Rafael J. Wysocki Acked-by: Samuel Ortiz Signed-off-by: Linus Walleij --- drivers/mfd/db8500-prcmu.c | 17 ++++++----------- 1 file changed, 6 insertions(+), 11 deletions(-) (limited to 'drivers/mfd') diff --git a/drivers/mfd/db8500-prcmu.c b/drivers/mfd/db8500-prcmu.c index dc8826d8d69d..67d8b25d183e 100644 --- a/drivers/mfd/db8500-prcmu.c +++ b/drivers/mfd/db8500-prcmu.c @@ -36,7 +36,6 @@ #include #include #include -#include #include "dbx500-prcmu-regs.h" /* Offset for the firmware version within the TCPM */ @@ -216,10 +215,8 @@ #define PRCM_REQ_MB5_I2C_HW_BITS (PRCM_REQ_MB5 + 0x1) #define PRCM_REQ_MB5_I2C_REG (PRCM_REQ_MB5 + 0x2) #define PRCM_REQ_MB5_I2C_VAL (PRCM_REQ_MB5 + 0x3) -#define PRCMU_I2C_WRITE(slave) \ - (((slave) << 1) | (cpu_is_u8500v2() ? BIT(6) : 0)) -#define PRCMU_I2C_READ(slave) \ - (((slave) << 1) | BIT(0) | (cpu_is_u8500v2() ? BIT(6) : 0)) +#define PRCMU_I2C_WRITE(slave) (((slave) << 1) | BIT(6)) +#define PRCMU_I2C_READ(slave) (((slave) << 1) | BIT(0) | BIT(6)) #define PRCMU_I2C_STOP_EN BIT(3) /* Mailbox 5 ACKs */ @@ -1049,12 +1046,13 @@ int db8500_prcmu_get_ddr_opp(void) * * This function sets the operating point of the DDR. */ +static bool enable_set_ddr_opp; int db8500_prcmu_set_ddr_opp(u8 opp) { if (opp < DDR_100_OPP || opp > DDR_25_OPP) return -EINVAL; /* Changing the DDR OPP can hang the hardware pre-v21 */ - if (cpu_is_u8500v20_or_later() && !cpu_is_u8500v20()) + if (enable_set_ddr_opp) writeb(opp, PRCM_DDR_SUBSYS_APE_MINBW); return 0; @@ -2790,6 +2788,7 @@ void __init db8500_prcmu_early_init(void) pr_err("prcmu: Unsupported chip version\n"); BUG(); } + tcdm_base = __io_address(U8500_PRCMU_TCDM_BASE); spin_lock_init(&mb0_transfer.lock); spin_lock_init(&mb0_transfer.dbb_irqs_lock); @@ -3104,9 +3103,6 @@ static int db8500_prcmu_probe(struct platform_device *pdev) struct device_node *np = pdev->dev.of_node; int irq = 0, err = 0, i; - if (ux500_is_svp()) - return -ENODEV; - init_prcm_registers(); /* Clean up the mailbox interrupts after pre-kernel code. */ @@ -3135,8 +3131,7 @@ static int db8500_prcmu_probe(struct platform_device *pdev) } } - if (cpu_is_u8500v20_or_later()) - prcmu_config_esram0_deep_sleep(ESRAM0_DEEP_SLEEP_STATE_RET); + prcmu_config_esram0_deep_sleep(ESRAM0_DEEP_SLEEP_STATE_RET); db8500_prcmu_update_cpufreq(); -- cgit v1.2.3 From 05ec260edecaf3dc214cff49d43b1ad9b2cbb710 Mon Sep 17 00:00:00 2001 From: Linus Walleij Date: Thu, 7 Feb 2013 10:17:31 +0100 Subject: mfd: db8500-prcmu: update resource passing When trying to get rid of the cross-includes of from different drivers, so we can localize ASIC/CPU detection to the mach-ux500 folder, we run into the way the PRCMU handles base addresses and firmware detection. This patch updates the firmware version detection to pass the required information as platform data instead of relying on cpu_is_* macros. Now the PRCMU base address, the secondary TCDM area, the TCPM area and the IRQ are passed as resources instead of being grabbed from files. Incidentally this also removes part of the reliance on . Further it updates the firmware version detection, since the location of the firmware ID bytes in the designated memory are is now passed from the platform data instead. There is no reason not to include the nice split-off of a struct to hold the firmware information and a separate function to populate it. The patch actually rids the need to use the external db8500_prcmu_early_init call at all, but I'm keepin back that removal as I don't want the patch to be too big. Cc: arm@kernel.org Cc: Michel Jaoen Cc: Lee Jones Acked-by: Samuel Ortiz Acked-by: Loic Pallardy Acked-by: Fabio Baltieri Signed-off-by: Linus Walleij --- drivers/mfd/db8500-prcmu.c | 122 +++++++++++++++++++++++++++++---------------- 1 file changed, 79 insertions(+), 43 deletions(-) (limited to 'drivers/mfd') diff --git a/drivers/mfd/db8500-prcmu.c b/drivers/mfd/db8500-prcmu.c index 67d8b25d183e..eba03d2329dd 100644 --- a/drivers/mfd/db8500-prcmu.c +++ b/drivers/mfd/db8500-prcmu.c @@ -38,9 +38,6 @@ #include #include "dbx500-prcmu-regs.h" -/* Offset for the firmware version within the TCPM */ -#define PRCMU_FW_VERSION_OFFSET 0xA4 - /* Index of different voltages to be used when accessing AVSData */ #define PRCM_AVS_BASE 0x2FC #define PRCM_AVS_VBB_RET (PRCM_AVS_BASE + 0x0) @@ -2704,21 +2701,43 @@ static struct irq_chip prcmu_irq_chip = { .irq_unmask = prcmu_irq_unmask, }; -static char *fw_project_name(u8 project) +static __init char *fw_project_name(u32 project) { switch (project) { case PRCMU_FW_PROJECT_U8500: return "U8500"; - case PRCMU_FW_PROJECT_U8500_C2: - return "U8500 C2"; + case PRCMU_FW_PROJECT_U8400: + return "U8400"; case PRCMU_FW_PROJECT_U9500: return "U9500"; - case PRCMU_FW_PROJECT_U9500_C2: - return "U9500 C2"; + case PRCMU_FW_PROJECT_U8500_MBB: + return "U8500 MBB"; + case PRCMU_FW_PROJECT_U8500_C1: + return "U8500 C1"; + case PRCMU_FW_PROJECT_U8500_C2: + return "U8500 C2"; + case PRCMU_FW_PROJECT_U8500_C3: + return "U8500 C3"; + case PRCMU_FW_PROJECT_U8500_C4: + return "U8500 C4"; + case PRCMU_FW_PROJECT_U9500_MBL: + return "U9500 MBL"; + case PRCMU_FW_PROJECT_U8500_MBL: + return "U8500 MBL"; + case PRCMU_FW_PROJECT_U8500_MBL2: + return "U8500 MBL2"; case PRCMU_FW_PROJECT_U8520: - return "U8520"; + return "U8520 MBL"; case PRCMU_FW_PROJECT_U8420: return "U8420"; + case PRCMU_FW_PROJECT_U9540: + return "U9540"; + case PRCMU_FW_PROJECT_A9420: + return "A9420"; + case PRCMU_FW_PROJECT_L8540: + return "L8540"; + case PRCMU_FW_PROJECT_L8580: + return "L8580"; default: return "Unknown"; } @@ -2759,37 +2778,44 @@ static int db8500_irq_init(struct device_node *np) return 0; } -void __init db8500_prcmu_early_init(void) +static void dbx500_fw_version_init(struct platform_device *pdev, + u32 version_offset) { - if (cpu_is_u8500v2() || cpu_is_u9540()) { - void *tcpm_base = ioremap_nocache(U8500_PRCMU_TCPM_BASE, SZ_4K); - - if (tcpm_base != NULL) { - u32 version; - version = readl(tcpm_base + PRCMU_FW_VERSION_OFFSET); - fw_info.version.project = version & 0xFF; - fw_info.version.api_version = (version >> 8) & 0xFF; - fw_info.version.func_version = (version >> 16) & 0xFF; - fw_info.version.errata = (version >> 24) & 0xFF; - fw_info.valid = true; - pr_info("PRCMU firmware: %s, version %d.%d.%d\n", - fw_project_name(fw_info.version.project), - (version >> 8) & 0xFF, (version >> 16) & 0xFF, - (version >> 24) & 0xFF); - iounmap(tcpm_base); - } + struct resource *res; + void __iomem *tcpm_base; - if (cpu_is_u9540()) - tcdm_base = ioremap_nocache(U8500_PRCMU_TCDM_BASE, - SZ_4K + SZ_8K) + SZ_8K; - else - tcdm_base = __io_address(U8500_PRCMU_TCDM_BASE); - } else { - pr_err("prcmu: Unsupported chip version\n"); - BUG(); + res = platform_get_resource_byname(pdev, IORESOURCE_MEM, + "prcmu-tcpm"); + if (!res) { + dev_err(&pdev->dev, + "Error: no prcmu tcpm memory region provided\n"); + return; + } + tcpm_base = ioremap(res->start, resource_size(res)); + if (tcpm_base != NULL) { + u32 version; + + version = readl(tcpm_base + version_offset); + fw_info.version.project = (version & 0xFF); + fw_info.version.api_version = (version >> 8) & 0xFF; + fw_info.version.func_version = (version >> 16) & 0xFF; + fw_info.version.errata = (version >> 24) & 0xFF; + strncpy(fw_info.version.project_name, + fw_project_name(fw_info.version.project), + PRCMU_FW_PROJECT_NAME_LEN); + fw_info.valid = true; + pr_info("PRCMU firmware: %s(%d), version %d.%d.%d\n", + fw_info.version.project_name, + fw_info.version.project, + fw_info.version.api_version, + fw_info.version.func_version, + fw_info.version.errata); + iounmap(tcpm_base); } - tcdm_base = __io_address(U8500_PRCMU_TCDM_BASE); +} +void __init db8500_prcmu_early_init(void) +{ spin_lock_init(&mb0_transfer.lock); spin_lock_init(&mb0_transfer.dbb_irqs_lock); mutex_init(&mb0_transfer.ac_wake_lock); @@ -3099,20 +3125,30 @@ static void db8500_prcmu_update_cpufreq(void) */ static int db8500_prcmu_probe(struct platform_device *pdev) { - struct ab8500_platform_data *ab8500_platdata = pdev->dev.platform_data; struct device_node *np = pdev->dev.of_node; + struct prcmu_pdata *pdata = dev_get_platdata(&pdev->dev); int irq = 0, err = 0, i; + struct resource *res; init_prcm_registers(); + dbx500_fw_version_init(pdev, pdata->version_offset); + res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "prcmu-tcdm"); + if (!res) { + dev_err(&pdev->dev, "no prcmu tcdm region provided\n"); + return -ENOENT; + } + tcdm_base = devm_ioremap(&pdev->dev, res->start, + resource_size(res)); + /* Clean up the mailbox interrupts after pre-kernel code. */ writel(ALL_MBOX_BITS, PRCM_ARM_IT1_CLR); - if (np) - irq = platform_get_irq(pdev, 0); - - if (!np || irq <= 0) - irq = IRQ_DB8500_PRCMU1; + irq = platform_get_irq(pdev, 0); + if (irq <= 0) { + dev_err(&pdev->dev, "no prcmu irq provided\n"); + return -ENOENT; + } err = request_threaded_irq(irq, prcmu_irq_handler, prcmu_irq_thread_fn, IRQF_NO_SUSPEND, "prcmu", NULL); @@ -3126,7 +3162,7 @@ static int db8500_prcmu_probe(struct platform_device *pdev) for (i = 0; i < ARRAY_SIZE(db8500_prcmu_devs); i++) { if (!strcmp(db8500_prcmu_devs[i].name, "ab8500-core")) { - db8500_prcmu_devs[i].platform_data = ab8500_platdata; + db8500_prcmu_devs[i].platform_data = pdata->ab_platdata; db8500_prcmu_devs[i].pdata_size = sizeof(struct ab8500_platform_data); } } -- cgit v1.2.3