Commit graph

12 commits

Author SHA1 Message Date
Timur Tabi
88353a9851 Fix calculation of I2C clock for some 85xx chips
Some 85xx chips use CCB as the base clock for the I2C.  Some use CCB/2, and
some use CCB/3.  There is no pattern that can be used to determine which
chips use which frequency, so the only way to determine is to look up the
actual SOC designation and use the right value for that SOC.

Update immap_85xx.h to include the GUTS PORDEVSR2 register.

Signed-off-by: Timur Tabi <timur@freescale.com>
2008-04-18 17:43:09 -05:00
James Yang
a3e77fa535 85xx: Speed up get_ddr_freq() and get_bus_freq()
get_ddr_freq() and get_bus_freq() used get_sys_info() each time they were
called.  However, get_sys_info() recalculates extraneous information when
called each time.  Have get_ddr_freq() and get_bus_freq() return memoized
values from global_data instead.

Signed-off-by: James Yang <James.Yang@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2008-03-26 11:43:04 -05:00
Timur Tabi
943afa229c 85xx, 86xx: Determine I2C clock frequencies and store in global_data
Update global_data to define i2c1_clk and i2c2_clk to 85xx and 86xx.

Update the get_clocks() function in 85xx and 86xx to determine the I2C
clock frequency and store it in gd->i2c1_clk and gd->i2c2_clk.

Signed-off-by: Timur Tabi <timur@freescale.com>
2008-02-14 23:32:40 +01:00
Kumar Gala
d435793229 Handle Asynchronous DDR clock on 85xx
The MPC8572 introduces the concept of an asynchronous DDR clock with
regards to the platform clock.

Introduce get_ddr_freq() to report the DDR freq regardless of sync/async
mode.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-12-11 22:34:20 -06:00
Kumar Gala
aafeefbdb8 Stop using immap_t for cpm offset on 85xx
In the future the offsets to various blocks may not be in same location.
Move to using CFG_MPC85xx_CPM_ADDR as the base of the CPM registers
instead of getting it via &immap->im_cpm.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-12-11 22:34:19 -06:00
Kumar Gala
f59b55a5b8 Stop using immap_t for guts offset on 85xx
In the future the offsets to various blocks may not be in same location.
Move to using CFG_MPC85xx_GUTS_ADDR as the base of the guts registers
instead of getting it via &immap->im_gur.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-12-11 22:34:19 -06:00
Andy Fleming
66ed6cca3f Reworked 85xx speed detection code
Changed the code to read the registers and calculate the clock
rates, rather than using a "switch" statement.

Idea from Andrew Klossner <andrew@cesa.opbu.xerox.com>

Signed-off-by: Andy Fleming <afleming@freescale.com>
2007-04-23 19:58:28 -05:00
Wolfgang Denk
d87080b721 GCC-4.x fixes: clean up global data pointer initialization for all boards. 2006-03-31 18:32:53 +02:00
Jon Loeliger
9c4c5ae3e1 * Patch by Jon Loeliger, Kumar Gala 2005-02-08
- Convert the CPM2 based functionality to use new CONFIG_CPM2
    option rather than a myriad of CONFIG_MPC8560-like variants.
    Applies to MPC85xx and MPC8260 boards, includes stxgp3 and sbc8560.
    Eliminates the CONFIG_MPC8560 option entirely.  Distributes the
    new CONFIG_CPM2 option to each 8260 board.
2005-07-23 10:37:35 -05:00
wdenk
281e00a3be * Code cleanup
* Patch by Sascha Hauer, 28 Jun:
  - add generic support for Motorola i.MX architecture
  - add support for mx1ads, mx1fs2 and scb9328 boards

* Patches by Marc Leeman, 23 Jul 2004:
  - Add define for the PCI/Memory Buffer Configuration Register
  - corrected comments in cpu/mpc824x/cpu_init.c

* Add support for multiple serial interfaces
  (for example to allow modem dial-in / dial-out)
2004-08-01 22:48:16 +00:00
wdenk
97d80fc391 Patches Part 1 by Jon Loeliger, 11 May 2004:
Dynamically handle REV1 and REV2 MPC85xx parts.
  (Jon Loeliger, 10-May-2004).
New consistent memory map and Local Access Window across MPC85xx line.
New CCSRBAR at 0xE000_0000 now.
Add RAPID I/O memory map.
New memory map in README.MPC85xxads
  (Kumar Gala, 10-May-2004)
Better board and CPU identification on MPC85xx boards at boot.
  (Jon Loeliger, 10-May-2004)
SDRAM clock control fixes on MPC8540ADS & MPC8560 boards.
Some configuration options for MPC8540ADS & MPC8560ADS cleaned up.
  (Jim Robertson, 10-May-2004)
Rewrite of the MPC85xx Three Speed Ethernet Controller (TSEC) driver.
Supports multiple PHYs.
  (Andy Fleming, 10-May-2004)
Some README.MPC85xxads updates.
  (Kumar Gala, 10-May-2004)
Copyright updates for "Freescale"
  (Andy Fleming, 10-May-2004)
2004-06-09 00:34:46 +00:00
wdenk
42d1f0394b * Patches by Xianghua Xiao, 15 Oct 2003:
- Added Motorola CPU 8540/8560 support (cpu/85xx)
  - Added Motorola MPC8540ADS board support (board/mpc8540ads)
  - Added Motorola MPC8560ADS board support (board/mpc8560ads)

* Minor code cleanup
2003-10-15 23:53:47 +00:00