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tegra124: Set Tx FIFO threshold value to recommended setting Reviewed-on: https://chromium-review.googlesource.com/175200 (cherry picked from commit c8f086711c6ae2db70fc8e0d84b54f5952fbe0ad) tegra124: add CLK_X definitions Reviewed-on: https://chromium-review.googlesource.com/175220 (cherry picked from commit 3f8a844bd2f151e06d82d1a7fac4492c6bc9417d) tegra124: fix incorrect struct member in clk_rst.h Reviewed-on: https://chromium-review.googlesource.com/175270 (cherry picked from commit 967193d5984a086c297988caa580b61cb4d0414c) tegra124: add the _x clocks to clock_enable_clear_reset Reviewed-on: https://chromium-review.googlesource.com/175539 (cherry picked from commit df4c515d73b02061e5c98f51efd50e04b10d63f5) tegra124: add clock support code for graphics. Reviewed-on: https://chromium-review.googlesource.com/175162 (cherry picked from commit b8eb6ab4cdc5a583636c10fa05f947a244f94819) tegra124: Clean up some #defines for DMA Reviewed-on: https://chromium-review.googlesource.com/175631 (cherry picked from commit 1a0a900f2d060916c9878781b82113b16a7945d9) tegra124: enable flow control for APBDMA in SPI driver Reviewed-on: https://chromium-review.googlesource.com/175630 (cherry picked from commit 873e6f9e95f6cb0162fa06216682fbc71ab0202d) nyan: move clock setup for the display out of dca_init Reviewed-on: https://chromium-review.googlesource.com/175656 (cherry picked from commit 32dd9947a60298ff9488c911629802c257ed6afc) tegra124: more display PLL setup and clock hardcode removal. Reviewed-on: https://chromium-review.googlesource.com/175732 (cherry picked from commit 80402876b5daa9e9389fd4fab5f539d89c37fa7f) tegra124: move dp.c from tegra to tegra124 Reviewed-on: https://chromium-review.googlesource.com/175830 (cherry picked from commit e98be569b0ba7f4d565ce677343a317db08344e0) tegra124: clean up tabbing; nyan: add a comment and setting to devicetree.cb Reviewed-on: https://chromium-review.googlesource.com/175889 (cherry picked from commit 4e513196b0014c5a82079f3aa87c2efbeb645484) tegra: get rid of struct members that are not used Reviewed-on: https://chromium-review.googlesource.com/176023 (cherry picked from commit 032b8a0c9fe0152ebc27344e93128865ecb918a6) tegra124: Increase SCLK (AVP) to 300MHz Reviewed-on: https://chromium-review.googlesource.com/175489 (cherry picked from commit 7e082f2c2f030950d652f1f87f637e15dee38552) tegra124: Address old main CPU starting review feedback. Reviewed-on: https://chromium-review.googlesource.com/175933 (cherry picked from commit 1d76ac71bd839dff9198e65132ec25212dd55ffd) tegra124: Revise clock source configuration for irregular peripherals. Reviewed-on: https://chromium-review.googlesource.com/176109 (cherry picked from commit 1021c215190602a2b8c1ab97d6c8313d89597d99) nyan: add timestamps in romstage Reviewed-on: https://chromium-review.googlesource.com/176172 (cherry picked from commit cd626aa10b56cd4da6ebda36fe487e44b08f3935) tegra124: Allow enabling clock output for external peripherals. Reviewed-on: https://chromium-review.googlesource.com/176108 (cherry picked from commit ea9fb6393ee80da77c9fbc30f605859c7009c9ed) nyan: Enable and configure clocks for I2S and audio codec. Reviewed-on: https://chromium-review.googlesource.com/176104 (cherry picked from commit 1fb659b3e73285ff8218c0f229734edd3b979ca4) tegra124: Fix typo in pinmux name. Reviewed-on: https://chromium-review.googlesource.com/176215 (cherry picked from commit c7915ad41a3f1d1452aa6d6d287aaa8eb9e85c34) nyan: Add pinmux settings for audio peripherals. Reviewed-on: https://chromium-review.googlesource.com/176212 (cherry picked from commit 37412f3201590e47a06d4678fa833164d370b41c) nyan: De-array-ify the PMIC setup code. Reviewed-on: https://chromium-review.googlesource.com/176903 (cherry picked from commit 86ab1ce9fbf6d5362af1ee37de1394412366f247) nyan: Add a kconfig for building for the original nyans in pixel cases. Reviewed-on: https://chromium-review.googlesource.com/176904 (cherry picked from commit 1d05fd5bc40d727826510ec81496ce4a49e257ed) nyan: Set the CPU voltage differently depending on which PMIC is in use. Reviewed-on: https://chromium-review.googlesource.com/176905 (cherry picked from commit 31507f6a575220737ee5683b312cd162600f89cc) nyan: Increase the CPU voltage to 1.2V. Reviewed-on: https://chromium-review.googlesource.com/176906 (cherry picked from commit fe4795e66b515c2523df09a8800ecac9a3f63557) tegra124: Flesh out/tidy up the flow controller constants. Reviewed-on: https://chromium-review.googlesource.com/177085 (cherry picked from commit b50d315506a5ab9c81b6bbaf8cf580dbb3e78794) tegra124: When leaving the bootblock/AVP, really stop the AVP. Reviewed-on: https://chromium-review.googlesource.com/177086 (cherry picked from commit 06c10df889d4d935bc99792df860d93766ae44dd) nyan: Set SPI4 speed to 33MHz Reviewed-on: https://chromium-review.googlesource.com/177038 (cherry picked from commit c98de65482fabdb5c76944fe3bf762191b3a0a55) nyan: Do console_init() in romstage Reviewed-on: https://chromium-review.googlesource.com/176763 (cherry picked from commit 0bec32e09eab28bc5ea49b7896a8b6f489143b03) nyan: Add a prompt to the CONFIG_NYAN_IN_A_PIXEL option. Reviewed-on: https://chromium-review.googlesource.com/177486 (cherry picked from commit 7cbb801d000dac4b39f76266ebef2585fe48faba) nyan: Separate the SDRAM BCT config for the two nyans, and turn down norrin. Reviewed-on: https://chromium-review.googlesource.com/177487 (cherry picked from commit 6b119685f6626d79d924af9f856ebb90af45a73f) tegra124: Bump up HCLK and PCLK Reviewed-on: https://chromium-review.googlesource.com/177563 (cherry picked from commit c25337dac8c3ecdd8ffe5b4d11acebb216132405) nyan: Add some code for reading the board ID. Reviewed-on: https://chromium-review.googlesource.com/177488 (cherry picked from commit 5fccbce99e7db312e2e3caf806c438c9b04c0a8f) nyan: Use the board ID to decide how to initialize the PMIC. Reviewed-on: https://chromium-review.googlesource.com/177489 (cherry picked from commit 677bdb9df55248da3a0c6be0089098f6d6807d3c) nyan: Create kconfig variables for each SDRAM config. Reviewed-on: https://chromium-review.googlesource.com/177580 (cherry picked from commit d7ddcf262a321f06289c4f2b2a6b43982dd96377) tegra124: Mux some unused pins away from UARTA, and pull up the serial RX line. Reviewed-on: https://chromium-review.googlesource.com/177637 (cherry picked from commit bd533cc109b0acf3495b04fa6622e250ba454fe9) tegra124: Initialize the MCR when setting up the UART. Reviewed-on: https://chromium-review.googlesource.com/177638 (cherry picked from commit 38c84786fc3e8fab913aebca176ac7b038cb0be6) tegra124: fix SPI AHB burst length Reviewed-on: https://chromium-review.googlesource.com/177564 (cherry picked from commit f29235263202c9b4a3dbb65da5727c8eefe44315) tegra124: remove unneeded debug print in SPI code Reviewed-on: https://chromium-review.googlesource.com/177833 (cherry picked from commit 34a50040268dbde1c326d315f8042a3905ddfb06) nyan: Set up the SOC and TPM reset pin. Reviewed-on: https://chromium-review.googlesource.com/177965 (cherry picked from commit b81a5bd15a2979ee009b9f7bc4a39a304e6a759a) tegra124: Allow some time for packets to appear in Rx FIFO Reviewed-on: https://chromium-review.googlesource.com/177832 (cherry picked from commit 8f70a25b1eea865a448525749ac18393f5b9ad84) nyan: PMIC: Slam default init values for SDOs/LDOs in AS3722 Reviewed-on: https://chromium-review.googlesource.com/178226 (cherry picked from commit c536b0d82fd6fffbc0e2448e0d19d3f06df5d86a) nyan: change devicetree for the new display settings. Reviewed-on: https://chromium-review.googlesource.com/177958 (cherry picked from commit 43abed730f222c8a685c250a58c981268994a65d) nyan: Switch USB VBUS GPIOs from outputs to pulled-up inputs Reviewed-on: https://chromium-review.googlesource.com/178914 (cherry picked from commit e47b6a609b9d23694a466b56960d9d14ca5d6242) Tegra124: nyan: Disable VPR Reviewed-on: https://chromium-review.googlesource.com/179327 (cherry picked from commit 441aa276446141f1b92ed8fb98c9578597487f4d) tegra124: norrin: fix display issue Reviewed-on: https://chromium-review.googlesource.com/179745 (cherry picked from commit c1c1ae69f6058ed901f532e2c532d1e6ba1f81fb) tegra124: Add iRAM layout information. Reviewed-on: https://chromium-review.googlesource.com/179814 (cherry picked from commit d00f135c93a52ad4dced2edecb74e2dfc54bb2fa) tegra124: Run bootblock and ROM stage out of DRAM. Reviewed-on: https://chromium-review.googlesource.com/179822 (cherry picked from commit 2d3ec06ec39a489d02e798bb22bce4d7465b20ce) nyan: clean up a comment regarding video Reviewed-on: https://chromium-review.googlesource.com/180161 (cherry picked from commit 03b5e88a66b9c96df2ef3d9ce5ba4a62a8bb2447) tegra124: norrin: the first step to clean up display code Reviewed-on: https://chromium-review.googlesource.com/180135 (cherry picked from commit 9d0c12dfef28a1161604df9b3fcc113049b2747d) Squashed 49 commits for tegra124/nyan. Change-Id: Id67bfee725e703d3e2d8ac17f40844dc193e901d Signed-off-by: Isaac Christensen <isaac.christensen@se-eng.com> Reviewed-on: http://review.coreboot.org/6883 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
149 lines
4.4 KiB
C
149 lines
4.4 KiB
C
/*
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* (C) Copyright 2010,2011
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* NVIDIA Corporation <www.nvidia.com>
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* Copyright 2013 Google Inc.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <inttypes.h>
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#include <stddef.h>
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#include <stdlib.h>
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#include <console/console.h>
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#include <arch/io.h>
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#include <soc/addressmap.h>
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#include "dma.h"
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struct apb_dma * const apb_dma = (struct apb_dma *)TEGRA_APB_DMA_BASE;
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#define APB_DMA_OFFSET(n) \
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(struct apb_dma_channel_regs *)(TEGRA_APB_DMA_BASE + n)
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struct apb_dma_channel apb_dma_channels[] = {
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{ .num = 0, .regs = APB_DMA_OFFSET(0x1000) },
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{ .num = 1, .regs = APB_DMA_OFFSET(0x1040) },
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{ .num = 2, .regs = APB_DMA_OFFSET(0x1080) },
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{ .num = 3, .regs = APB_DMA_OFFSET(0x10c0) },
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{ .num = 4, .regs = APB_DMA_OFFSET(0x1100) },
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{ .num = 5, .regs = APB_DMA_OFFSET(0x1140) },
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{ .num = 6, .regs = APB_DMA_OFFSET(0x1180) },
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{ .num = 7, .regs = APB_DMA_OFFSET(0x11c0) },
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{ .num = 8, .regs = APB_DMA_OFFSET(0x1200) },
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{ .num = 9, .regs = APB_DMA_OFFSET(0x1240) },
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{ .num = 10, .regs = APB_DMA_OFFSET(0x1280) },
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{ .num = 11, .regs = APB_DMA_OFFSET(0x12c0) },
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{ .num = 12, .regs = APB_DMA_OFFSET(0x1300) },
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{ .num = 13, .regs = APB_DMA_OFFSET(0x1340) },
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{ .num = 14, .regs = APB_DMA_OFFSET(0x1380) },
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{ .num = 15, .regs = APB_DMA_OFFSET(0x13c0) },
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{ .num = 16, .regs = APB_DMA_OFFSET(0x1400) },
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{ .num = 17, .regs = APB_DMA_OFFSET(0x1440) },
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{ .num = 18, .regs = APB_DMA_OFFSET(0x1480) },
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{ .num = 19, .regs = APB_DMA_OFFSET(0x14c0) },
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{ .num = 20, .regs = APB_DMA_OFFSET(0x1500) },
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{ .num = 21, .regs = APB_DMA_OFFSET(0x1540) },
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{ .num = 22, .regs = APB_DMA_OFFSET(0x1580) },
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{ .num = 23, .regs = APB_DMA_OFFSET(0x15c0) },
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{ .num = 24, .regs = APB_DMA_OFFSET(0x1600) },
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{ .num = 25, .regs = APB_DMA_OFFSET(0x1640) },
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{ .num = 26, .regs = APB_DMA_OFFSET(0x1680) },
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{ .num = 27, .regs = APB_DMA_OFFSET(0x16c0) },
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{ .num = 28, .regs = APB_DMA_OFFSET(0x1700) },
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{ .num = 29, .regs = APB_DMA_OFFSET(0x1740) },
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{ .num = 30, .regs = APB_DMA_OFFSET(0x1780) },
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{ .num = 31, .regs = APB_DMA_OFFSET(0x17c0) },
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};
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int dma_busy(struct apb_dma_channel * const channel)
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{
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/*
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* In continuous mode, the BSY_n bit in APB_DMA_STATUS and
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* BSY in APBDMACHAN_CHANNEL_n_STA_0 will remain set as '1' so long
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* as the channel is enabled. So for this function we'll use the
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* DMA_ACTIVITY bit.
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*/
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return read32(&channel->regs->sta) & APB_STA_DMA_ACTIVITY ? 1 : 0;
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}
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/* claim a DMA channel */
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struct apb_dma_channel * const dma_claim(void)
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{
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int i;
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struct apb_dma_channel_regs *regs = NULL;
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/*
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* Set global enable bit, otherwise register access to channel
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* DMA registers will not be possible.
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*/
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setbits_le32(&apb_dma->command, APB_COMMAND_GEN);
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for (i = 0; i < ARRAY_SIZE(apb_dma_channels); i++) {
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regs = apb_dma_channels[i].regs;
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if (!apb_dma_channels[i].in_use) {
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u32 status = read32(®s->sta);
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if (status & (1 << i)) {
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/* FIXME: should this be fatal? */
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printk(BIOS_DEBUG, "%s: DMA channel %d busy?\n",
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__func__, i);
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}
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break;
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}
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}
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if (i == ARRAY_SIZE(apb_dma_channels))
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return NULL;
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apb_dma_channels[i].in_use = 1;
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return &apb_dma_channels[i];
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}
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/* release a DMA channel */
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void dma_release(struct apb_dma_channel * const channel)
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{
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int i;
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/* FIXME: make this "thread" friendly */
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while (dma_busy(channel))
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;
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channel->in_use = 0;
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/* clear the global enable bit if no channels are in use */
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for (i = 0; i < ARRAY_SIZE(apb_dma_channels); i++) {
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if (apb_dma_channels[i].in_use)
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return;
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}
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clrbits_le32(&apb_dma->command, APB_COMMAND_GEN);
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}
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int dma_start(struct apb_dma_channel * const channel)
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{
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struct apb_dma_channel_regs *regs = channel->regs;
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/* Set ENB bit for this channel */
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setbits_le32(®s->csr, APB_CSR_ENB);
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return 0;
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}
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int dma_stop(struct apb_dma_channel * const channel)
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{
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struct apb_dma_channel_regs *regs = channel->regs;
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/* Clear ENB bit for this channel */
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clrbits_le32(®s->csr, APB_CSR_ENB);
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return 0;
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}
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