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99545b4bb1
This target adds support for the Allwinner D1 RISC-V based SoCs.
- RISC-V single-core T-Head C906 (RV64GCV)
- Tensilica HiFi4 DSP
- DDR2/DDR3 support
- 10/100/1000M ethernet
- usual peripherals like USB2, SPI, I2C, PWM, etc.
Four boards are supported:
- Dongshan Nezha STU
- 512Mb RAM
- ethernet
- LicheePi RV Dock
- 512Mb RAM
- wireless-only (RTL8723DS)
- MangoPi MQ-Pro
- 512Mb RAM
- there are pads available for an SPI flash
- wireless-only (RTL8723DS)
- Nezha D1
- 512Mb/1Gb/2Gb RAM
- 256Mb NAND flash
- ethernet, wireless
Installation:
Standard SD-card installation via dd-ing the generated image to
an SD-card of at least 256Mb.
Signed-off-by: Zoltan HERPAI <wigyori@uid0.hu>
52 lines
1.8 KiB
Diff
52 lines
1.8 KiB
Diff
From 74492b9ecd874496578693d9985649665b560308 Mon Sep 17 00:00:00 2001
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From: Samuel Holland <samuel@sholland.org>
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Date: Sun, 7 Aug 2022 20:08:49 -0500
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Subject: [PATCH 002/117] clk: sunxi-ng: mp: Avoid computing the rate twice
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ccu_mp_find_best() already computes a best_rate at the same time as the
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best m and p factors. Return it so the caller does not need to duplicate
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the division.
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Series-to: Chen-Yu Tsai <wens@csie.org>
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Series-to: Jernej Skrabec <jernej.skrabec@gmail.com>
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Signed-off-by: Samuel Holland <samuel@sholland.org>
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---
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drivers/clk/sunxi-ng/ccu_mp.c | 11 ++++++-----
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1 file changed, 6 insertions(+), 5 deletions(-)
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--- a/drivers/clk/sunxi-ng/ccu_mp.c
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+++ b/drivers/clk/sunxi-ng/ccu_mp.c
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@@ -10,9 +10,9 @@
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#include "ccu_gate.h"
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#include "ccu_mp.h"
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-static void ccu_mp_find_best(unsigned long parent, unsigned long rate,
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- unsigned int max_m, unsigned int max_p,
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- unsigned int *m, unsigned int *p)
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+static unsigned long ccu_mp_find_best(unsigned long parent, unsigned long rate,
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+ unsigned int max_m, unsigned int max_p,
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+ unsigned int *m, unsigned int *p)
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{
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unsigned long best_rate = 0;
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unsigned int best_m = 0, best_p = 0;
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@@ -35,6 +35,8 @@ static void ccu_mp_find_best(unsigned lo
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*m = best_m;
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*p = best_p;
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+
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+ return best_rate;
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}
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static unsigned long ccu_mp_find_best_with_parent_adj(struct clk_hw *hw,
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@@ -109,8 +111,7 @@ static unsigned long ccu_mp_round_rate(s
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max_p = cmp->p.max ?: 1 << ((1 << cmp->p.width) - 1);
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if (!clk_hw_can_set_rate_parent(&cmp->common.hw)) {
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- ccu_mp_find_best(*parent_rate, rate, max_m, max_p, &m, &p);
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- rate = *parent_rate / p / m;
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+ rate = ccu_mp_find_best(*parent_rate, rate, max_m, max_p, &m, &p);
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} else {
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rate = ccu_mp_find_best_with_parent_adj(hw, parent_rate, rate,
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max_m, max_p);
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