coreboot-kgpe-d16/src/mainboard/google/nyan_big/boardid.c

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/*
* This file is part of the coreboot project.
*
* Copyright 2014 Google Inc.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#include <boardid.h>
#include <console/console.h>
gpio: Extend common GPIO header, simplify function names We've had gpiolib.h which defines a few common GPIO access functions for a while, but it wasn't really complete. This patch adds the missing gpio_output() function, and also renames the unwieldy gpio_get_in_value() and gpio_set_out_value() to the much easier to handle gpio_get() and gpio_set(). The header is renamed to the simpler gpio.h while we're at it (there was never really anything "lib" about it, and it was presumably just chosen due to the IPQ806x include/ conflict problem that is now resolved). It also moves the definition of gpio_t into SoC-specific code, so that different implementations are free to encode their platform-specific GPIO parameters in those 4 bytes in the most convenient way (such as the rk3288 with a bitfield struct). Every SoC intending to use this common API should supply a <soc/gpio.h> that typedefs gpio_t to a type at most 4 bytes in length. Files accessing the API only need to include <gpio.h> which may pull in additional things (like a gpio_t creation macro) from <soc/gpio.h> on its own. For now the API is still only used on non-x86 SoCs. Whether it makes sense to expand it to x86 as well should be separately evaluated at a later point (by someone who understands those systems better). Also, Exynos retains its old, incompatible GPIO API even though it would be a prime candidate, because it's currently just not worth the effort. BUG=None TEST=Compiled on Daisy, Peach_Pit, Nyan_Blaze, Rush_Ryu, Storm and Veyron_Pinky. Change-Id: Ieee77373c2bd13d07ece26fa7f8b08be324842fe Signed-off-by: Patrick Georgi <pgeorgi@chromium.org> Original-Commit-Id: 9e04902ada56b929e3829f2c3b4aeb618682096e Original-Change-Id: I6c1e7d1e154d9b02288aabedb397e21e1aadfa15 Original-Signed-off-by: Julius Werner <jwerner@chromium.org> Original-Reviewed-on: https://chromium-review.googlesource.com/220975 Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: http://review.coreboot.org/9400 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2014-09-25 00:40:49 +02:00
#include <gpio.h>
tegra/nyan*: sdram updates nyan_big: Add 204MHz BCT for bringup, use 1.2V for VDD_CPU Reviewed-on: https://chromium-review.googlesource.com/183939 (cherry picked from commit a6df76afb5342b805baca749abb8265e15748dc1) nyan_big: Add initial 792MHz BCT Reviewed-on: https://chromium-review.googlesource.com/183975 (cherry picked from commit 61d0122fdce6dc9479666bb0a5bc079c6389f78a) nyan_big: use RAM_CODE[3:2] for ram code Reviewed-on: https://chromium-review.googlesource.com/184076 (cherry picked from commit 35e5c5e473f871cdc897473a31586afbececd716) tegra124: support tri-state Board Id Reviewed-on: https://chromium-review.googlesource.com/183855 (cherry picked from commit 1a9d1bd73aa2cd0c36203b247976ad0d00a360e4) nyan*: Fix SPI pinmux configuration Reviewed-on: https://chromium-review.googlesource.com/184281 (cherry picked from commit ac4106b673c285af66d72392bd4a8522aba98489) nyan_big: Add 4GB 204/792MHz BCTs Reviewed-on: https://chromium-review.googlesource.com/184159 (cherry picked from commit 5ff002d09f8db0543b58962f6c0d24627fb0937e) tegra124: Add function for obtaining DRAM size via MC regs Reviewed-on: https://chromium-review.googlesource.com/184535 (cherry picked from commit d4580c46de649903a266a99eb11c9126ba385b48) tegra124/nyan*: Obtain DRAM size dynamically Reviewed-on: https://chromium-review.googlesource.com/184431 (cherry picked from commit a7db71744771decc04cf1966efba70bf4897cfa3) tegra124: Rearrange iRAM layout to allow more space for romstage Reviewed-on: https://chromium-review.googlesource.com/184240 (cherry picked from commit 6bdaabbc068146a4516c724b71d31bb777dabcfc) tegra124: Fix MemoryType field name in SDRAM parameters. Reviewed-on: https://chromium-review.googlesource.com/185113 (cherry picked from commit 9caccd1e86a8c683402fab87d9f3a49b87496e97) nyan_big: Initialize SDRAM without BootROM. Reviewed-on: https://chromium-review.googlesource.com/183624 (cherry picked from commit a1cbc00aa80ec1ea52e833a8e31c8e4b27160e70) tegra124: move FB_SIZE_MB to a more appropriate location Reviewed-on: https://chromium-review.googlesource.com/184930 (cherry picked from commit ddea486fd4410394417c4e59039d46a324918bdc) nyan: Initialize SDRAM without BootROM. Reviewed-on: https://chromium-review.googlesource.com/185114 (cherry picked from commit 1ff51b580b28553919f91b11b443251b048cf26b) tegra124: Save SDRAM parameters to PMC registers for LP0 Reviewed-on: https://chromium-review.googlesource.com/182928 (cherry picked from commit 7476b4bd0ecdc312476cce871d22f57915a0bd86) tegra124: Rewrite SDRAM parameter saving code to be more efficient Reviewed-on: https://chromium-review.googlesource.com/184388 (cherry picked from commit 25084bd0407624e4b2ff82388c32af1198c501a6) nyan: Slightly change the way SDRAM parameter files are set up Reviewed-on: https://chromium-review.googlesource.com/185286 (cherry picked from commit a31887b804f23e031c395113db582cd71f3d1b6d) Squashed 16 commits for SDRAM support on nyan and nyan_big. Change-Id: I07419985376277083d62400dd14fe8273f6d5ca8 Signed-off-by: Isaac Christensen <isaac.christensen@se-eng.com> Reviewed-on: http://review.coreboot.org/6949 Tested-by: build bot (Jenkins) Reviewed-by: Marc Jones <marc.jones@se-eng.com>
2014-01-23 21:37:50 +01:00
#include <stdlib.h>
uint32_t board_id(void)
{
static int id = -1;
gpio: Remove non-ternary tristate mode, make ternaries easier The function to read board IDs from tristate GPIOs currently supports two output modes: a normal base-3 integer, or a custom format where every two bits represent one tristate pin. Each board decides which representation to use on its own, which is inconsistent and provides another possible gotcha to trip over when reading unfamiliar code. The two-bits-per-pin format creates the additional problem that a complete list of IDs (such as some boards use to build board-ID tables) necessarily has "holes" in them (since 0b11 does not correspond to a possible pin state), which makes them extremely tricky to write, read and expand. It's also very unintuitive in my opinion, although it was intended to make it easier to read individual pin states from a hex representation. This patch switches all boards over to base-3 and removes the other format to improve consistency. The tristate reading function will just print the pin states as they are read to make it easier to debug them, and we add a new BASE3() macro that can generate ternary numbers from pin states. Also change the order of all static initializers of board ID pin lists to write the most significant bit first, hoping that this can help clear up confusion about the endianness of the pins. CQ-DEPEND=CL:219902 BUG=None TEST=Booted on a Nyan_Blaze (with board ID 1, unfortunately the only one I have). Compiled on Daisy, Peach_Pit, Nyan, Nyan_Big, Nyan_Blaze, Rush, Rush_Ryu, Storm, Veryon_Pinky and Falco for good measure. Change-Id: I3ce5a0829f260db7d7df77e6788c2c6d13901b8f Signed-off-by: Patrick Georgi <pgeorgi@chromium.org> Original-Commit-Id: 2fa9545ac431c9af111ee4444d593ee4cf49554d Original-Change-Id: I6133cdaf01ed6590ae07e88d9e85a33dc013211a Original-Signed-off-by: Julius Werner <jwerner@chromium.org> Original-Reviewed-on: https://chromium-review.googlesource.com/219901 Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: http://review.coreboot.org/9401 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2014-09-25 00:40:49 +02:00
gpio_t gpio[] = {[3] = GPIO(X4), [2] = GPIO(X1), /* X4 is MSB */
[1] = GPIO(T1), [0] = GPIO(Q3),}; /* Q3 is LSB */
if (id < 0) {
id = gpio_base3_value(gpio, ARRAY_SIZE(gpio));
tegra/nyan*: sdram updates nyan_big: Add 204MHz BCT for bringup, use 1.2V for VDD_CPU Reviewed-on: https://chromium-review.googlesource.com/183939 (cherry picked from commit a6df76afb5342b805baca749abb8265e15748dc1) nyan_big: Add initial 792MHz BCT Reviewed-on: https://chromium-review.googlesource.com/183975 (cherry picked from commit 61d0122fdce6dc9479666bb0a5bc079c6389f78a) nyan_big: use RAM_CODE[3:2] for ram code Reviewed-on: https://chromium-review.googlesource.com/184076 (cherry picked from commit 35e5c5e473f871cdc897473a31586afbececd716) tegra124: support tri-state Board Id Reviewed-on: https://chromium-review.googlesource.com/183855 (cherry picked from commit 1a9d1bd73aa2cd0c36203b247976ad0d00a360e4) nyan*: Fix SPI pinmux configuration Reviewed-on: https://chromium-review.googlesource.com/184281 (cherry picked from commit ac4106b673c285af66d72392bd4a8522aba98489) nyan_big: Add 4GB 204/792MHz BCTs Reviewed-on: https://chromium-review.googlesource.com/184159 (cherry picked from commit 5ff002d09f8db0543b58962f6c0d24627fb0937e) tegra124: Add function for obtaining DRAM size via MC regs Reviewed-on: https://chromium-review.googlesource.com/184535 (cherry picked from commit d4580c46de649903a266a99eb11c9126ba385b48) tegra124/nyan*: Obtain DRAM size dynamically Reviewed-on: https://chromium-review.googlesource.com/184431 (cherry picked from commit a7db71744771decc04cf1966efba70bf4897cfa3) tegra124: Rearrange iRAM layout to allow more space for romstage Reviewed-on: https://chromium-review.googlesource.com/184240 (cherry picked from commit 6bdaabbc068146a4516c724b71d31bb777dabcfc) tegra124: Fix MemoryType field name in SDRAM parameters. Reviewed-on: https://chromium-review.googlesource.com/185113 (cherry picked from commit 9caccd1e86a8c683402fab87d9f3a49b87496e97) nyan_big: Initialize SDRAM without BootROM. Reviewed-on: https://chromium-review.googlesource.com/183624 (cherry picked from commit a1cbc00aa80ec1ea52e833a8e31c8e4b27160e70) tegra124: move FB_SIZE_MB to a more appropriate location Reviewed-on: https://chromium-review.googlesource.com/184930 (cherry picked from commit ddea486fd4410394417c4e59039d46a324918bdc) nyan: Initialize SDRAM without BootROM. Reviewed-on: https://chromium-review.googlesource.com/185114 (cherry picked from commit 1ff51b580b28553919f91b11b443251b048cf26b) tegra124: Save SDRAM parameters to PMC registers for LP0 Reviewed-on: https://chromium-review.googlesource.com/182928 (cherry picked from commit 7476b4bd0ecdc312476cce871d22f57915a0bd86) tegra124: Rewrite SDRAM parameter saving code to be more efficient Reviewed-on: https://chromium-review.googlesource.com/184388 (cherry picked from commit 25084bd0407624e4b2ff82388c32af1198c501a6) nyan: Slightly change the way SDRAM parameter files are set up Reviewed-on: https://chromium-review.googlesource.com/185286 (cherry picked from commit a31887b804f23e031c395113db582cd71f3d1b6d) Squashed 16 commits for SDRAM support on nyan and nyan_big. Change-Id: I07419985376277083d62400dd14fe8273f6d5ca8 Signed-off-by: Isaac Christensen <isaac.christensen@se-eng.com> Reviewed-on: http://review.coreboot.org/6949 Tested-by: build bot (Jenkins) Reviewed-by: Marc Jones <marc.jones@se-eng.com>
2014-01-23 21:37:50 +01:00
gpio: Remove non-ternary tristate mode, make ternaries easier The function to read board IDs from tristate GPIOs currently supports two output modes: a normal base-3 integer, or a custom format where every two bits represent one tristate pin. Each board decides which representation to use on its own, which is inconsistent and provides another possible gotcha to trip over when reading unfamiliar code. The two-bits-per-pin format creates the additional problem that a complete list of IDs (such as some boards use to build board-ID tables) necessarily has "holes" in them (since 0b11 does not correspond to a possible pin state), which makes them extremely tricky to write, read and expand. It's also very unintuitive in my opinion, although it was intended to make it easier to read individual pin states from a hex representation. This patch switches all boards over to base-3 and removes the other format to improve consistency. The tristate reading function will just print the pin states as they are read to make it easier to debug them, and we add a new BASE3() macro that can generate ternary numbers from pin states. Also change the order of all static initializers of board ID pin lists to write the most significant bit first, hoping that this can help clear up confusion about the endianness of the pins. CQ-DEPEND=CL:219902 BUG=None TEST=Booted on a Nyan_Blaze (with board ID 1, unfortunately the only one I have). Compiled on Daisy, Peach_Pit, Nyan, Nyan_Big, Nyan_Blaze, Rush, Rush_Ryu, Storm, Veryon_Pinky and Falco for good measure. Change-Id: I3ce5a0829f260db7d7df77e6788c2c6d13901b8f Signed-off-by: Patrick Georgi <pgeorgi@chromium.org> Original-Commit-Id: 2fa9545ac431c9af111ee4444d593ee4cf49554d Original-Change-Id: I6133cdaf01ed6590ae07e88d9e85a33dc013211a Original-Signed-off-by: Julius Werner <jwerner@chromium.org> Original-Reviewed-on: https://chromium-review.googlesource.com/219901 Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: http://review.coreboot.org/9401 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2014-09-25 00:40:49 +02:00
printk(BIOS_SPEW, "Board TRISTATE ID: %d.\n", id);
}
return id;
}