[PATCH v5 09/14] ARM: OMAP2+: gpmc: holler if no configuration
flat view
STALE5231d
SUPERSEDED
From: Jon Hunter <hidden>
Date: 2012-06-11 22:30:20
Also in:
linux-omap
Revision v5 of 5 in this series.
Revisions (5)
- v5
- v5 current
- v5
- v5
- v6 [diff vs current]
On 06/11/2012 09:27 AM, Afzal Mohammed wrote:
Some of the GPMC peripherals depend on bootloader to do the configuration. This facility is deprecated, notify user about the present GPMC settings & inform that that relying on bootloader for GPMC setting is deprecated.
Nit, "holler" is slang. Just say WARN. Jon
quoted hunk ↗ jump to hunk
Signed-off-by: Afzal Mohammed <redacted> --- arch/arm/mach-omap2/gpmc.c | 104 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 104 insertions(+)diff --git a/arch/arm/mach-omap2/gpmc.c b/arch/arm/mach-omap2/gpmc.c index 65052f8..5a6f708 100644 --- a/arch/arm/mach-omap2/gpmc.c +++ b/arch/arm/mach-omap2/gpmc.c@@ -1058,6 +1058,110 @@ static void gpmc_cs_set_register_timings(int cs, const struct gpmc_timings *t) } } +static void gpmc_print_cs_config(int cs) +{ + u32 l = gpmc_cs_read_reg(cs, GPMC_CS_CONFIG1); + + dev_warn(gpmc_dev, "GPMC CS%d depends on bootloader for config\n", cs); + dev_warn(gpmc_dev, "Please update it in Kernel ASAP to prevent losing support for this peripheral\n"); + dev_warn(gpmc_dev, "Bootloader dependency for GPMC configuration is deprecated\n"); + + dev_warn(gpmc_dev, "muxadddata: %s\n", + l & GPMC_CONFIG1_MUXADDDATA ? "yes" : "no"); + dev_warn(gpmc_dev, "writetypesync: %s\n", + l & GPMC_CONFIG1_WRITETYPE_SYNC ? "yes" : "no"); + dev_warn(gpmc_dev, "writemultiple: %s\n", + l & GPMC_CONFIG1_WRITEMULTIPLE_SUPP ? "yes" : "no"); + dev_warn(gpmc_dev, "readtypesync: %s\n", + l & GPMC_CONFIG1_READTYPE_SYNC ? "yes" : "no"); + dev_warn(gpmc_dev, "readmultiple: %s\n", + l & GPMC_CONFIG1_READMULTIPLE_SUPP ? "yes" : "no"); + dev_warn(gpmc_dev, "wrapburst: %s\n", + l & GPMC_CONFIG1_WRAPBURST_SUPP ? "yes" : "no"); + dev_warn(gpmc_dev, "devicetype: %s\n", + l & GPMC_CONFIG1_DEVICETYPE_NAND ? "nand" : "nor"); + dev_warn(gpmc_dev, "devicesize: %d\n", + l & GPMC_CONFIG1_DEVICESIZE_16 ? 16 : 8); + dev_warn(gpmc_dev, "pagelength: %d\n", + l & GPMC_CONFIG1_PAGE_LEN(~0) ? + (l & GPMC_CONFIG1_PAGE_LEN_16 ? 16 : 8) : 4); +} +static inline unsigned gpmc_get_one_timing(int cs, int reg, int start, int end) +{ + u32 l = gpmc_cs_read_reg(cs, reg); + unsigned mask; + + mask = (1 << (end - start + 1)) - 1; + l &= (mask << start); + return l >>= start; +} + +static void gpmc_print_cs_timings(int cs) +{ + dev_warn(gpmc_dev, "GPMC CS%d depends on bootloader for timing\n", cs); + dev_warn(gpmc_dev, "Please update it in Kernel ASAP to prevent losing support for this peripheral\n"); + dev_warn(gpmc_dev, "Bootloader dependency for GPMC configuration is deprecated\n"); + + dev_warn(gpmc_dev, "fclk period: %lups\n", gpmc_get_fclk_period()); + dev_warn(gpmc_dev, "sync_clk: %u\n", + gpmc_get_one_timing(cs, GPMC_CS_CONFIG1, 0, 1)); + dev_warn(gpmc_dev, "wait_monitoring: %u\n", + gpmc_get_one_timing(cs, GPMC_CS_CONFIG1, 18, 19)); + dev_warn(gpmc_dev, "clk_activation: %u\n", + gpmc_get_one_timing(cs, GPMC_CS_CONFIG1, 25, 26)); + dev_warn(gpmc_dev, "cs_on: %u\n", + gpmc_get_one_timing(cs, GPMC_CS_CONFIG2, 0, 3)); + dev_warn(gpmc_dev, "cs_rd_off: %u\n", + gpmc_get_one_timing(cs, GPMC_CS_CONFIG2, 8, 12)); + dev_warn(gpmc_dev, "cs_wr_off: %u\n", + gpmc_get_one_timing(cs, GPMC_CS_CONFIG2, 16, 20)); + dev_warn(gpmc_dev, "adv_on: %u\n", + gpmc_get_one_timing(cs, GPMC_CS_CONFIG3, 0, 3)); + dev_warn(gpmc_dev, "adv_rd_off: %u\n", + gpmc_get_one_timing(cs, GPMC_CS_CONFIG3, 8, 12)); + dev_warn(gpmc_dev, "adv_wr_off: %u\n", + gpmc_get_one_timing(cs, GPMC_CS_CONFIG3, 16, 20)); + dev_warn(gpmc_dev, "oe_on: %u\n", + gpmc_get_one_timing(cs, GPMC_CS_CONFIG4, 0, 3)); + dev_warn(gpmc_dev, "oe_off: %u\n", + gpmc_get_one_timing(cs, GPMC_CS_CONFIG4, 8, 12)); + dev_warn(gpmc_dev, "we_on: %u\n", + gpmc_get_one_timing(cs, GPMC_CS_CONFIG4, 16, 19)); + dev_warn(gpmc_dev, "we_off: %u\n", + gpmc_get_one_timing(cs, GPMC_CS_CONFIG4, 24, 28)); + dev_warn(gpmc_dev, "rd_cycle: %u\n", + gpmc_get_one_timing(cs, GPMC_CS_CONFIG5, 0, 4)); + dev_warn(gpmc_dev, "wr_cycle: %u\n", + gpmc_get_one_timing(cs, GPMC_CS_CONFIG5, 8, 12)); + dev_warn(gpmc_dev, "acess: %u\n", + gpmc_get_one_timing(cs, GPMC_CS_CONFIG5, 16, 20)); + dev_warn(gpmc_dev, "page_burst_access: %u\n", + gpmc_get_one_timing(cs, GPMC_CS_CONFIG5, 24, 27)); + dev_warn(gpmc_dev, "bus_turnaround: %u\n", + gpmc_get_one_timing(cs, GPMC_CS_CONFIG6, 0, 3)); + dev_warn(gpmc_dev, "cycle2cycle_delay: %u\n", + gpmc_get_one_timing(cs, GPMC_CS_CONFIG6, 8, 11)); + dev_warn(gpmc_dev, "wr_data_mux_bus: %u\n", + gpmc_get_one_timing(cs, GPMC_CS_CONFIG6, 16, 19)); + dev_warn(gpmc_dev, "wr_access: %u\n", + gpmc_get_one_timing(cs, GPMC_CS_CONFIG6, 24, 28)); + + dev_warn(gpmc_dev, "time_para_granularity: %u\n", + gpmc_get_one_timing(cs, GPMC_CS_CONFIG1, 4, 4)); + dev_warn(gpmc_dev, "cs_extra_delay: %u\n", + gpmc_get_one_timing(cs, GPMC_CS_CONFIG2, 7, 7)); + dev_warn(gpmc_dev, "adv_extra_delay: %u\n", + gpmc_get_one_timing(cs, GPMC_CS_CONFIG3, 7, 7)); + dev_warn(gpmc_dev, "oe_extra_delay: %u\n", + gpmc_get_one_timing(cs, GPMC_CS_CONFIG4, 7, 7)); + dev_warn(gpmc_dev, "we_extra_delay: %u\n", + gpmc_get_one_timing(cs, GPMC_CS_CONFIG4, 23, 23)); + dev_warn(gpmc_dev, "cycle2cyclediffcsen: %u\n", + gpmc_get_one_timing(cs, GPMC_CS_CONFIG6, 6, 6)); + dev_warn(gpmc_dev, "cycle2cyclesamecsen: %u\n", + gpmc_get_one_timing(cs, GPMC_CS_CONFIG6, 7, 7)); +} + static inline unsigned gpmc_bit_to_irq(unsigned bitmask) { return bitmask;